OSI SYSTEMS INC
S-1/A, 1997-08-01
SEMICONDUCTORS & RELATED DEVICES
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<PAGE>
 
     
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 1, 1997     
                                                   
                                                REGISTRATION NO. 333-29179     
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                --------------
                               
                            AMENDMENT NO. 1 TO     
                                   FORM S-1
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                                --------------
 
                               OSI SYSTEMS, INC.
              (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)
<TABLE> 
<S>                                  <C>                             <C> 
          CALIFORNIA                            3674                    33-0238801
 (STATE OR OTHER JURISDICTION OF     (PRIMARY STANDARD INDUSTRIAL    (I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)       CLASSIFICATION CODE NUMBER)    IDENTIFICATION NO.)
</TABLE> 
 
                                --------------
 
              (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
       INCLUDING AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                                --------------
 
                                 DEEPAK CHOPRA
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                               OSI SYSTEMS, INC.
                             12525 CHADRON AVENUE
                          HAWTHORNE, CALIFORNIA 90250
                              TEL. (310) 978-0516
           (NAME, ADDRESS AND TELEPHONE NUMBER OF AGENT FOR SERVICE)
 
                                --------------
 
                                  COPIES TO:
 
         ISTVAN BENKO, ESQ.                        BERTRAM R. ZWEIG, ESQ. 
TROY & GOULD PROFESSIONAL CORPORATION            JONES, DAY, REAVIS & POGUE 
1801 CENTURY PARK EAST, SUITE 1600             555 WEST 5TH STREET, SUITE 4600
LOS ANGELES, CALIFORNIA 90067                LOS ANGELES, CALIFORNIA 90013-1025 
    TEL. (310) 553-4441                             TEL. (213) 489-3939 
    FAX. (310) 201-4746                             FAX. (213) 243-2539

                                --------------
 
         APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC:
  AS SOON AS PRACTICABLE AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE.
 
                                --------------
 
  If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, as amended ("Securities Act"), check the following box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement of the earlier effective registration statement for the
same offering. [_]
 
  If the delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [_]
 
                                --------------
 
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT THAT SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION
8(a), MAY DETERMINE.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+  INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A       +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                   
                SUBJECT TO COMPLETION, DATED AUGUST 1, 1997     
 
                         [LOGO OF OPTO-SENSORS, INC.]
 
                               3,700,000 SHARES
 
                                 COMMON STOCK
 
  Of the 3,700,000 shares of Common Stock offered hereby, 3,330,000 shares are
being sold by OSI Systems, Inc. (the "Company") and 370,000 shares are being
sold by the Selling Shareholders. See "Principal and Selling Shareholders." The
Company will not receive any of the proceeds from the sale of shares by the
Selling Shareholders.
   
  Prior to this Offering, there has been no public market for the Common Stock
of the Company. It is currently estimated that the initial public offering
price will be between $13.00 and $14.00 per share. See "Underwriting" for
information relating to the method of determining the initial public offering
price. The Company has made application for inclusion of the Common Stock on
the Nasdaq National Market under the symbol "OSIS."     
 
                                   ----------
 
   THE COMMON STOCK OFFERED HEREBY INVOLVES A HIGH DEGREE OF RISK. SEE "RISK
                         FACTORS" BEGINNING ON PAGE 7.
 
                                   ----------
 
   THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES 
      AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS 
        THE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON 
               THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY 
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                                 UNDERWRITING                      PROCEEDS TO
                  PRICE TO      DISCOUNTS AND     PROCEEDS TO        SELLING
                   PUBLIC       COMMISSIONS(1)     COMPANY(2)    SHAREHOLDERS(2)
- --------------------------------------------------------------------------------
<S>           <C>              <C>              <C>              <C>
Per Share...    $                $                $                $
- --------------------------------------------------------------------------------
Total(3)....    $                $                $                $
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
</TABLE>
(1) The Company and the Selling Shareholders have agreed to indemnify the
    several Underwriters against certain liabilities, including liabilities
    under the Securities Act of 1933, as amended (the "Securities Act"). See
    "Underwriting."
(2) Before deducting estimated offering expenses of $    payable by the Company
    and $       payable by the Selling Shareholders.
(3) Certain of the Selling Shareholders have granted to the Underwriters a 30-
    day option to purchase up to an additional 555,000 shares of Common Stock
    solely to cover over-allotments, if any. If such over-allotment option is
    exercised in full, the total Price to Public, Underwriting Discounts and
    Commissions, and Proceeds to Selling Shareholders will be $    , $     and
    $    , respectively. See "Underwriting."
 
                                   ----------
 
  The Common Stock is offered by the Underwriters as stated herein, subject to
receipt and acceptance by them and subject to their right to reject any order
in whole or in part. It is expected that delivery of such shares will be made
through the offices of Robertson, Stephens & Company LLC ("Robertson, Stephens
& Company"), San Francisco, California, on or about      , 1997.
 
ROBERTSON, STEPHENS & COMPANY
                            WILLIAM BLAIR & COMPANY
                                                    VOLPE BROWN WHELAN & COMPANY
 
                  The date of this Prospectus is      , 1997.
<PAGE>
 
     OSI Systems, Inc. is a vertically integrated worldwide provider of devices,
subsystems and end-products based on optoelectronic technology.  The Company 
designs and manufactures optoelectronic devices and value-added subsystems for 
original equipment manufacturers for use in a broad range of applications, 
including security, medical diagnostics, telecommunications, office automation, 
aerospace, computer peripherals and industrial automation.  In addition, the 
Company utilizes its optoelectronic technology and design capabilities to 
manufacture security and inspection products that it markets worldwide to end 
users under the "Rapiscan" brand name.  These products are used to inspect 
baggage, cargo and other objects for weapons, explosives, drugs and other 
contraband.
                                       
                                   RAPISCAN      
                           
                       Security and Inspection Products      
    
[Picture of a woman standing in front of a Rapiscan 119
Table Top System machine]
Rapiscan 119 Table Top System      
    
[Picture of a woman walking through a Rapiscan AMD 750 Metal
Arch machine]
Rapiscan AMD 750 Metal Arch      
    
[Picture of Rapiscan 520 Carry On System machine]
Rapiscan 520 Carry On System      
    
[Picture of Rapiscan 532 Cargo System machine with image of 
person next to the system]
Rapiscan 532 Cargo System      
    
[Three images of baggage with various contents]
Conventional Dual Energy Image
Organic Material Image
Enhanced Picture X-Ray (EPX) Image      
    
[Picture of a Rapiscan Series 500 X-Ray van with open side
door]
Rapiscan Series 500 X-Ray Van      
<PAGE>
 
                                        
                                         
  CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN, OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING BY OVER-ALLOTMENT, ENTERING STABILIZING BIDS, EFFECTING SYNDICATE
COVERING TRANSACTIONS OR THE IMPOSITION OF PENALTY BIDS. FOR A DESCRIPTION OF
THESE ACTIVITIES, SEE "UNDERWRITING."
 
                                       2
<PAGE>
 
                              [TWO PAGE GATEFOLD]






                                   
                               OSI SYSTEMS, INC.
                               ----------------      
                          
                     Optoelectronic Devices and Subsystems      
    
[Picture of man with Pulse Oximetry Probe attached to his finger and woman 
sitting next to him]
Pulse Oximetry Probe      
    
[Picture of computer and medical imaging equipment]
Medical Imaging Sensor Electronics      
    
[Picture of hand-held Barcode Readout Sensor]
Barcode Readout Sensor      
    
[Picture of detector device]
High Energy Radiation Detector      
    
[Picture of various cables and subassemblies]
Opto-Assembly/Medical      
    
[Picture of various printed circuit boards]
Custom PC Boards      
    
[Picture of various optical components and subassemblies]
Optics      
    
[Picture of X-ray scanning machine]
Imaging Sensor Electronics      
    
[Picture of military attack helicopter]
Laser Warning Detector      
    
[Picture of sensor device]
Satellite Sun Sensors      
    
[Picture of submarine]
Fire Detection Subassembly      
    
[Picture of various molding parts and casings]
Tool & Die and Injection Molding      
    
[Picture of various photodetectors]
Custom Photodetectors      
    
[Picture of various chips and printed circuit boards]
Ceramic Substrates/Hybrids      
    
[Picture of array chip]
Hybrid      
    
[Picture of slot machine]
Hopper Optical Assembly      
    
[Schematic Image of Ring Laser Gyro Detector]
Ring Laser Gyro (RLG) Detector      
    
[Picture of Color Sensor Hybrid]
Color Sensor Hybrid      

<PAGE>
 
  NO DEALER, SALES REPRESENTATIVE OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO
GIVE ANY INFORMATION OR TO MAKE ANY REPRESENTATIONS IN CONNECTION WITH THIS
OFFERING OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS, AND, IF GIVEN OR MADE,
SUCH INFORMATION OR REPRESENTATIONS MUST NOT BE RELIED UPON AS HAVING BEEN
AUTHORIZED BY THE COMPANY, ANY SELLING SHAREHOLDER OR ANY UNDERWRITER. THIS
PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A SOLICITATION OF AN OFFER
TO BUY, ANY SECURITIES OTHER THAN THE REGISTERED OFFER AND SALE OF THE
SECURITIES TO WHICH IT RELATES OR AN OFFER TO, OR A SOLICITATION OF, ANY
PERSON IN ANY JURISDICTION WHERE SUCH AN OFFER OR SOLICITATION WOULD BE
UNLAWFUL. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HEREUNDER
SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS BEEN NO
CHANGE IN THE AFFAIRS OF THE COMPANY SINCE THE DATE HEREOF OR THAT THE
INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE
HEREOF.
   
  UNTIL    , 1997 (25 DAYS FROM THE DATE OF THIS PROSPECTUS), ALL DEALERS
EFFECTING TRANSACTIONS IN THE COMMON STOCK, WHETHER OR NOT PARTICIPATING IN
THIS DISTRIBUTION, MAY BE REQUIRED TO DELIVER A PROSPECTUS. THIS DELIVERY
REQUIREMENT IS IN ADDITION TO THE OBLIGATION OF DEALERS TO DELIVER A
PROSPECTUS WHEN ACTING AS UNDERWRITERS AND WITH RESPECT TO THEIR UNSOLD
ALLOTMENTS OR SUBSCRIPTIONS.     
                               ----------------
 
                               TABLE OF CONTENTS
<TABLE>   
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Prospectus Summary........................................................    4
Risk Factors..............................................................    7
Use of Proceeds...........................................................   15
Dividend Policy...........................................................   15
Capitalization............................................................   16
Dilution..................................................................   17
Selected Consolidated Financial Data......................................   18
Management's Discussion and Analysis of Financial Condition and Results of
 Operations...............................................................   19
Business..................................................................   28
Management................................................................   42
Certain Transactions......................................................   50
Principal and Selling Shareholders........................................   52
Description of Capital Stock..............................................   55
Shares Eligible for Future Sale...........................................   56
Underwriting..............................................................   57
Legal Matters.............................................................   59
Experts...................................................................   59
Additional Information....................................................   59
Index to Consolidated Financial Statements................................  F-1
</TABLE>    
                               ----------------
 
  The Company intends to furnish its shareholders with annual reports
containing consolidated audited financial statements and quarterly reports
containing unaudited consolidated financial data for the first three quarters
of each fiscal year.
   
  Rapiscan(R) is a registered trademark of the Company. This Prospectus also
contains trademarks and tradenames of other companies.     
 
  The Company is a California corporation organized in 1987. In June 1997, the
Company changed its name from Opto Sensors, Inc. to OSI Systems, Inc. The
Company's principal subsidiaries are: UDT Sensors, Inc., a California
corporation ("UDT Sensors"); Rapiscan Security Products (U.S.A.), Inc., a
California corporation ("Rapiscan U.S.A."); Ferson Optics, Inc. ("Ferson"), a
California corporation; Rapiscan Security Products Limited, a United Kingdom
corporation ("Rapiscan UK"); Opto Sensors (Singapore) Pte Ltd, a corporation
organized under the laws of Singapore ("OSI Singapore"); Opto Sensors
(Malaysia) Sdn. Bhd., a Malaysian corporation ("OSI Malaysia"); and Advanced
Micro Electronics AS, a Norwegian company ("AME"). The principal executive
offices of the Company are located at 12525 Chadron Avenue, Hawthorne,
California 90250. The Company's telephone number is (310) 978-0516. Unless
otherwise indicated by the context, all references in this Prospectus to the
"Company" are to OSI Systems, Inc. and to one or more, but not necessarily all
of its consolidated subsidiaries.
 
                                       3
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety by the more detailed
information and consolidated financial statements and notes thereto appearing
elsewhere in this Prospectus, including the information under "Risk Factors."
 
                                  THE COMPANY
 
  OSI Systems, Inc. (the "Company") is a vertically integrated worldwide
provider of devices, subsystems and end-products based on optoelectronic
technology. The Company designs and manufactures optoelectronic devices and
value-added subsystems for original equipment manufacturers ("OEMs") for use in
a broad range of applications, including security, medical diagnostics,
telecommunications, office automation, aerospace, computer peripherals and
industrial automation. In addition, the Company utilizes its optoelectronic
technology and design capabilities to manufacture security and inspection
products that it markets worldwide to end users under the "Rapiscan" brand
name. These products are used to inspect baggage, cargo and other objects for
weapons, explosives, drugs and other contraband. In the nine-month period ended
March 31, 1997, revenues from the sale of optoelectronic devices and subsystems
amounted to $31.7 million, or approximately 56.6%, of the Company's revenues,
while revenues from sales of security and inspection products amounted to $24.3
million, or approximately 43.4%, of the Company's revenues.
 
 Optoelectronic Devices and Subsystems
 
  The Company manufactures a wide range of optoelectronic devices which it
integrates into complex subsystems vital to various end products, including x-
ray and computer tomography ("CT") imaging systems, industrial robotics,
medical monitoring and diagnostic products, optical drives for computer
peripherals, bar code scanners, and aviation gyroscopes. These optoelectronic
devices operate by sensing light of varying wave lengths and converting the
light into electronic signals. In addition to manufacturing optoelectronic
devices, the Company produces optoelectronic subsystems and offers a range of
vertically integrated services to its subsystem customers. These services
include component design and customization, subsystem concept design and
application engineering, product prototyping and development, pre-production,
and short-run and high volume manufacturing. In the nine-month period ended
March 31, 1997, the Company manufactured subsystems for use in more than 100
different applications, including those of approximately 50 major OEM customers
such as Picker International, Honeywell Avionics, Eastman Kodak, Xerox, Johnson
& Johnson, Bausch & Lomb, Texas Instruments, Boeing Aircraft Co. and Hewlett-
Packard. During the nine-month period, no single OEM customer accounted for
more than 10.0% of the Company's revenues and the top five customers
collectively represented less than 20.0% of the Company's revenues.
 
  The Company believes that in recent years advances in technology and
reductions in the cost of key components of optoelectronic systems, including
computer processing power and memory, have broadened the market by enabling the
use of optoelectronic devices in a greater number of applications. In addition,
the Company believes that there is a trend among OEMs to increasingly outsource
the design and manufacture of optoelectronic subsystems to fully integrated,
independent manufacturers who may have greater specialization, broader
expertise, and the ability and flexibility to respond in shorter time periods
than the OEMs could accomplish in-house. The Company believes that its high
level of vertical integration, substantial engineering resources, expertise in
the use and application of optoelectronic technology, and low-cost
international manufacturing operations, enable it to effectively compete in the
market for optoelectronic devices and subsystems.
 
 Security and Inspection Products
 
  The Company manufactures a range of security and inspection products that are
used for conventional security purposes including the detection of concealed
weapons and contraband, as well as for a variety of non-security applications.
The Company's security and inspection products utilize linear x-ray technology
to create a two-dimensional image of the contents of the object being
inspected. These products may function either as stand-alone systems or as
components of an integrated security system. Locations where these products are
currently used for security inspection purposes include airports, government
offices, post offices,
 
                                       4
<PAGE>
 
courthouses, jails, embassies, commercial buildings and mail sorting
facilities. Non-security inspection uses of these products include the
detection of illegal narcotics, inspection of agricultural products,
examination of cargo to mitigate the avoidance of import duties, and non-
destructive product testing. The Company currently manufactures 16 models of
products with different sizes, price points and imaging capabilities in order
to appeal to the breadth of security and non-security applications for its
products. Since entering the security and inspection market in 1993, the
Company has shipped more than 2,000 units of its security and inspection
products to over 50 countries. The Company believes that the growth in the
market for security and inspection products will continue to be driven by the
increased perception of threat fueled by recent terrorist incidents, increased
government mandates and appropriations, and the emergence of a growing market
for the non-security applications of its products.
 
  The Company's objectives are to be a leading provider of specialized
optoelectronic products, to enhance its position in the international
inspection and detection marketplace, and to leverage its expertise in the
optoelectronic technology industry by integrating into new end-markets on a
selective basis. Key elements of the Company's growth strategy include
leveraging its expertise in optoelectronic design and manufacturing to address
new applications, further penetrating existing security and inspections
markets, capitalizing on its high-level of vertical integration and on its
global presence, and selectively entering into new end-product markets. Since
1990, the Company has completed four acquisitions. The Company intends to
continue to pursue additional acquisition opportunities that expand the
Company's technological capabilities, increase the breadth of its product
offerings, and increase its geographic presence. As with the security and
inspection operations that the Company acquired in 1993, the Company seeks to
make acquisitions in which: (i) the Company's core optoelectronic technology is
a significant technology component; (ii) the market for the products offers
favorable pricing dynamics; (iii) the competitive market dynamics provide for
substantial growth in market share; and (iv) the Company's existing
manufacturing, sales and service organization provide the acquired operations
with a strategic and cost advantage.
 
  The Company currently manufactures its optoelectronic devices and subsystems
at facilities in Hawthorne, California, in Ocean Springs, Mississippi, in Johor
Bahru, Malaysia, and in Horten, Norway. Its security and inspection products
are currently manufactured at facilities in Crawley, England, in Long Beach,
California, and in Johor Bahru, Malaysia. As of March 31, 1997 the Company
marketed its products worldwide through approximately 44 sales and marketing
employees located in five countries, and through approximately 95 independent
sales representatives.
 
                                  THE OFFERING
 
<TABLE>
<S>                                   <C>
Common Stock Offered by the Company.  3,330,000 shares
Common Stock Offered by the Selling
 Shareholders.......................    370,000 shares
Common Stock Outstanding after the
 Offering...........................  9,458,874 shares(1)
Use of Proceeds.....................  To repay certain indebtedness, to increase
                                      funds available for research and
                                      development, to enhance its sales and
                                      marketing capabilities, to pursue possible
                                      acquisitions, and for general corporate
                                      purposes, including working capital. See
                                      "Use of Proceeds."
Proposed Nasdaq National Market
 Symbol.............................  OSIS
</TABLE>
- --------------------
(1) Based on the number of shares outstanding on May 31, 1997. Excludes: (i)
    approximately 864,986 shares of Common Stock issuable upon exercise of
    outstanding stock options at a weighted average exercise price of $7.32 per
    share; and (ii) up to 45,486 shares of Common Stock that may be issued
    after June 30, 1997 as additional consideration for the Company's purchase
    in November 1996 of certain minority shares of Rapiscan U.S.A. See "Certain
    Transactions."
 
                                       5
<PAGE>
 
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                (In thousands, except share and per share data)
<TABLE>   
<CAPTION>
                                                                   NINE MONTHS ENDED
                                    YEAR ENDED JUNE 30,                MARCH 31,
                          --------------------------------------- -------------------
                           1992    1993    1994    1995    1996      1996      1997
                          ------- ------- ------- ------- ------- ----------- -------
                                                                  (unaudited)
<S>                       <C>     <C>     <C>     <C>     <C>     <C>         <C>
CONSOLIDATED STATEMENTS
 OF OPERATIONS DATA:
 Revenues...............  $21,471 $27,225 $47,735 $49,815 $61,518   $44,994   $55,973
 Cost of goods sold.....   16,581  20,591  36,037  37,818  45,486    33,638    40,380
                          ------- ------- ------- ------- -------   -------   -------
 Gross profit...........    4,890   6,634  11,698  11,997  16,032    11,356    15,593
 Operating expenses:
  Selling, general and
   administrative(1)....    2,914   4,014   7,974   7,601   9,757     6,745     8,183
  Research and
   development..........      847   1,034   1,451   1,591   1,663     1,280     1,737
  Stock option
   compensation(2)......      --      --      --      --      --        --        856
                          ------- ------- ------- ------- -------   -------   -------
   Total operating
   expenses.............    3,761   5,048   9,425   9,192  11,420     8,025    10,776
                          ------- ------- ------- ------- -------   -------   -------
 Income from operations.    1,129   1,586   2,273   2,805   4,612     3,331     4,817
 Interest expense.......      650     471     710   1,251   1,359     1,026       900
                          ------- ------- ------- ------- -------   -------   -------
 Income before income
  taxes and minority
  interest..............      479   1,115   1,563   1,554   3,253     2,305     3,917
 Provision for income
  taxes.................      148     462     814     413   1,111       787       983
                          ------- ------- ------- ------- -------   -------   -------
 Income before minority
  interest..............      331     653     749   1,141   2,142     1,518     2,934
 Minority interest......      --        6      38      17     117        28       --
                          ------- ------- ------- ------- -------   -------   -------
 Net income.............  $   331 $   659 $   787 $ 1,158 $ 2,259   $ 1,546   $ 2,934
                          ======= ======= ======= ======= =======   =======   =======
 Pro forma net
  income(3)(4)..........                                  $ 2,308   $ 1,643   $ 3,026
                                                          =======   =======   =======
 Pro forma net income
  per share(3)(4)(5)....                                  $  0.37   $  0.26   $  0.48
                                                          =======   =======   =======
 Pro forma weighted
  average shares
  outstanding(5).......                                 6,308,126 6,304,158 6,327,234
 
<CAPTION>
                                                              MARCH 31, 1997
                                                          ----------------------
                                                          ACTUAL  AS ADJUSTED(6)
                                                          ------- --------------
<S>                                                       <C>     <C>
CONSOLIDATED BALANCE SHEET DATA:
 Cash.................................................... $ 1,612    $33,027
 Working capital.........................................   9,940     48,915
 Total assets............................................  44,314     75,729
 Total debt..............................................  11,387      1,594
 Total shareholders' equity..............................  14,982     56,190
</TABLE>    
- ------------------
(1) Fiscal 1994 includes a one-time charge of $1.5 million incurred in
    connection with the settlement of a governmental proceeding. See
    "Business--Legal Proceedings."
   
(2) Represents a charge resulting from the acceleration of the vesting periods
    of outstanding stock options having exercise prices below the fair market
    value on the date of grant. The charge had the effect of decreasing income
    from operations, net income and pro forma net income by $856,000, $514,000
    and $514,000 respectively.     
(3) Gives effect to the conversion of certain subordinated debt into preferred
    stock and Common Stock in October and November 1996, and the issuance of
    Common Stock for the purchase of the remaining minority interests in
    certain subsidiaries in September and November 1996 as if such transactions
    occurred on July 1, 1995. Pro forma adjustments for the year ended June 30,
    1996 and for each of the nine-month periods ended March 31, 1996 and 1997
    consist of: (i) the elimination of interest expenses related to converted
    subordinated debt of $166,000, $125,000 and $92,000, net of income taxes,
    respectively; and (ii) the elimination of the minority interest in the net
    loss of subsidiaries of $117,000, $28,000 and $0, respectively.
   
(4) Supplementary pro forma net income for the year ended June 30, 1996 and for
    each of the nine month periods ended March 31, 1996 and 1997 is $2,913,000,
    $2,086,000 and $3,464,000, respectively, reflecting the reduction in
    interest expense, net of income taxes, from the effect of debt repayments
    discussed under "Use of Proceeds." Supplementary pro forma net income per
    share for the corresponding periods is $0.41, $0.29 and $0.49,
    respectively, and reflects only the additional shares issued to repay that
    debt.     
   
(5) Assumes the conversion of 2,568,750 shares of preferred stock into
    3,853,125 shares of Common Stock as of July 1, 1995.     
   
(6) Adjusted to give effect to the sale of 3,330,000 shares of Common Stock
    offered by the Company hereby, at an assumed initial public offering price
    of $13.50 per share and after deducting underwriting discounts, commissions
    and estimated Offering expenses, and the application of the net proceeds
    therefrom.     
 
  Unless otherwise indicated, all information in this Prospectus: (i) reflects
a 1.5-for-1 stock split (the "Stock Split") of the Common Stock effected in
June 1997; (ii) reflects the conversion of each outstanding share of the
Company's preferred stock into 1.5 shares of the Common Stock concurrent with
the Stock Split; and (iii) assumes the Underwriters' over-allotment is not
exercised. All references to the Company's fiscal years refer to the periods
ending June 30.
 
                                       6
<PAGE>
 
                                 RISK FACTORS
 
  In addition to the other information in this Prospectus, investors should
carefully consider the following risk factors when evaluating an investment in
the Common Stock offered hereby. This Prospectus contains forward-looking
statements that involve risks and uncertainties, such as statements of the
Company's plans, objectives, expectations and intentions. The cautionary
statements made in this Prospectus should be read as being applicable to all
forward-looking statements wherever they appear in this Prospectus. The
Company's actual results could differ materially from those discussed herein.
Factors that could cause or contribute to such differences include those
discussed below, as well as those discussed elsewhere in this Prospectus.
 
FLUCTUATIONS IN QUARTERLY RESULTS
 
  The Company's quarterly operating results have varied in the past and are
likely to vary significantly in the future. These quarterly fluctuations are
the result of a number of factors, including the volume and timing of orders
received and shipments made during the period, variations in the Company's
product mix, changes in demand for the Company's products, the timing and
amount of expenditures made by the Company in anticipation of future sales,
variability in selling price, and other competitive conditions. The Company's
revenues, particularly from the sale of security and inspection products, are
increasingly dependent upon larger orders of multiple units and upon the sale
of products having higher average selling prices. The Company is unable to
predict the timing of the receipt of such orders and, as a result, significant
variations between forecasts and actual orders will often occur. Furthermore,
the rescheduling of the shipment of any large order, or portion thereof, or
any production difficulties or delays experienced by the Company, could have a
material adverse effect on the Company's quarterly operating results. Due to
the foregoing factors, it is possible that in future quarters the Company's
operating results will not meet the expectations of public market analysts and
investors. In such event, the price of the Company's Common Stock would be
materially adversely affected. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations," and "Business -- Backlog."
 
COMPETITION
 
  The markets in which the Company operates are highly competitive and are
characterized by evolving customer needs and rapid technological change. The
Company competes with a number of other manufacturers, many of whom have
significantly greater financial, technical and marketing resources than the
Company. In addition, these competitors may have the ability to respond more
quickly to new or emerging technologies, may adapt more quickly to changes in
customer requirements, may have stronger customer relationships, may have
greater name recognition, and may devote greater resources to the development,
promotion and sale of their products than does the Company. In the
optoelectronic device and subsystem market, competition is based primarily on
factors such as expertise in the design and development of optoelectronic
devices, product quality, timeliness of delivery, price, customer technical
support, and on the ability to provide fully integrated services from
application development and design through volume subsystem production. The
Company believes that its major competitors in the optoelectronic device and
subsystem market are EG&G Electro-Optics, a division of EG&G, Inc., Optek
Technology Inc., Hamamatsu Corporation, and Honeywell Optoelectronics, a
division of Honeywell, Inc. In the security and inspection market, competition
is based primarily on such factors as product performance, functionality and
quality, the over-all cost of the system, prior customer relationships,
technological capabilities of the product, price, certification by government
authorities, local market presence, and breadth of sales and service
organization. The Company believes that its principal competitors in the
market for security and inspection products are EG&G Astrophysics, a division
of EG&G, Inc. ("EG&G Astrophysics") Heimann Systems GmbH, InVision
Technologies, Inc., Vivid Technologies, American Science and Engineering,
Inc., Barringer Technologies Inc., Control Screening L.L.C., and Thermedics
Detection, Inc. In addition, the Company supplies optoelectronic devices and
subsystems to certain OEMs which, in turn, manufacture end-products that
compete with the Company's own products. There can be no assurance that these
competing OEMs will continue to purchase
 
                                       7
<PAGE>
 
optoelectronic products from the Company. Competition could result in price
reductions, reduced margins, and a decrease in the Company's market share.
There can be no assurance that the Company will be able to compete
successfully against any current or future competitors in either market or
that future competitive pressures will not materially and adversely affect its
business, financial condition and results of operations. See "Business--
Competition."
 
LARGE ORDERS; LENGTHY SALES CYCLES
 
  Sales of the Company's security and inspection products have increasingly
been characterized by large orders of multiple units or of products having
higher average selling prices. The Company's inability to obtain such
additional large orders could have a material adverse effect on the Company's
business, financial condition and results of operations. Sales of security and
inspection products depend in significant part upon the decision of
governmental agencies to upgrade or expand existing airports, border crossing
inspection sites and other security installations. Accordingly, a portion of
the Company's sales of security inspection and detection products is often
subject to delays associated with the lengthy approval processes that often
accompany such capital expenditures. During these approval periods, the
Company expends significant financial and management resources in anticipation
of future orders that may not occur. A failure by the Company to receive an
order after expending such resources could have a material adverse effect on
its business, financial condition and results of operations.
 
RAPID TECHNOLOGICAL CHANGE
 
  The markets for all of the Company's products are subject to rapidly
changing technology. As OEMs seek to develop and introduce new,
technologically-advanced products and product enhancements, the Company is
required to design, develop and manufacture optoelectronic devices and
subsystems to meet these new and enhanced product requirements. Accordingly,
the Company's performance as a designer and manufacturer of optoelectronic
devices and subsystems is dependent upon its ability to keep pace with
technological developments in both the optoelectronic market and in the
numerous markets that its products serve. Any delay or failure in the
Company's ability to design and manufacture the increasingly complex and
technologically-advanced products that its customers demand will have a
material adverse effect on the Company's business, financial condition and
results of operations. In addition, technological changes and market forces
continually affect the products sold by the Company's customers and thereby
alter the demand for the Company's optoelectronic subsystems. The Company has
in the past suddenly and unexpectedly lost orders for entire subsystem product
lines due to technological changes that made the products sold by the
Company's customers obsolete. The market for the Company's security and
inspection products is also characterized by rapid technological change as the
security industry seeks to develop new and more sophisticated products. New
and enhanced security and inspection products are continuously being developed
and introduced by the Company's competitors, including products that use
advanced x-ray technologies, CT technology, or electro-magnetic and ultrasound
technologies. The Company believes that its future success in the security and
inspection industry will depend in large part upon its ability to enhance its
existing product lines and to successfully develop new products that meet
changing customer requirements. No assurance can be given that new industry
standards or changing technology will not render the Company's existing
security and inspection products obsolete. The failure of the Company's
security and inspection product lines to meet new technological requirements
or new industry standards will have a material adverse effect on the Company's
business, financial condition and results of operations.
 
AVAILABILITY OF RAW MATERIALS AND COMPONENTS
 
  The Company purchases certain raw materials and subcomponents from third
parties pursuant to purchase orders placed from time to time. Purchase order
terms range from three months to one year at fixed costs, but the Company has
no guaranteed long-term supply arrangements with its suppliers. Any material
interruption in the Company's ability to purchase necessary raw materials or
subcomponents could have a material adverse effect on the Company's business,
financial condition and results of operations. Silicon-based optoelectronic
devices manufactured by the Company are critical components in most of the
 
                                       8
<PAGE>
 
Company's subsystems. Since 1987, the Company has purchased substantially all
of the silicon wafers it uses to manufacture its optoelectronic devices from
Wacker Siltronic Corp., a United States subsidiary of Wacker Siltronic AG, a
German company. The Company's dependence on this single source of supply
exposes the Company to several risks, including limited control over pricing,
availability of material, and material delivery schedules. Although the
Company has not experienced any significant shortages or material delays in
obtaining silicon wafers from Wacker Siltronic Corp., a major interruption in
the delivery of silicon wafers from Wacker Siltronic Corp. would materially
disrupt the Company's operations and could have a material adverse effect on
the Company's business, financial condition and results of operations. The
inability of the Company to develop alternative sources for single or sole
source components, or to obtain sufficient quantities of these components,
would adversely affect the Company's operations. See "Business--Manufacturing
and Materials Management."
 
INTERNATIONAL BUSINESS; FLUCTUATION IN EXCHANGE RATES; RISKS OF CHANGES IN
FOREIGN REGULATIONS
 
  In fiscal 1995 and 1996 and in the nine-month period ended March 31, 1997,
revenues from shipments made outside of the United States accounted for
approximately 32.0%, 38.0% and 39.3%, respectively, of the Company's revenues.
Of the revenues generated during fiscal 1996 from shipments made outside of
the United States, 12.0% represented sales from the United States to foreign
customers, and the balance represented sales generated by the Company's
foreign subsidiaries. The Company anticipates that international sales will
continue to account for a material portion of the Company's revenues and that,
accordingly, a major portion of the Company's business will be exposed to the
risks associated with conducting international business operations, including
unexpected changes in regulatory requirements, changes in foreign control
legislation, possible foreign currency controls, currency exchange rate
fluctuations or devaluations, tariffs, difficulties in staffing and managing
foreign operations, difficulties in obtaining and managing vendors and
distributors, potentially negative tax consequences, and difficulties in
collecting accounts receivable. The Company is also subject to risks
associated with laws regulating the import and export of high technology
products. The Company cannot predict whether quotas, duties, taxes or other
charges or restrictions upon the importation or exportation of the Company's
products will be implemented by the United States or any other country in the
future. There can be no assurance that any of these factors will not have a
material adverse effect on the Company's business, financial condition and
results of operations.
 
RISKS ASSOCIATED WITH MANAGING GROWTH AND ACQUISITIONS
 
  Since 1990, the Company has experienced significant growth through both
internal expansion and through acquisitions. During this period, OSI Systems,
Inc. established its Rapiscan U.S.A. operations and its Malaysian
manufacturing facilities and acquired UDT Sensors, Rapiscan UK, Ferson and
AME. This growth has placed, and may continue to place, significant demands on
the Company's management, working capital and financial resources. Failure to
continue to expand and enhance the Company's management and its financial
control systems could adversely affect the Company's business, financial
condition and results of operations. There can be no assurance that the
Company's current management and systems will be adequate to address any
future expansion of the Company's business. An element of the Company's
strategy is to pursue acquisitions that would complement its existing range of
products, augment its market coverage or enhance its technological
capabilities or that may otherwise offer growth opportunities. Such future
acquisitions by the Company could result in potentially dilutive issuances of
equity securities, the incurrence of debt and contingent liabilities, and the
amortization of expenses related to goodwill and other intangible assets, any
of which could materially adversely affect the Company's business, financial
condition and results of operations. Acquisitions entail numerous risks,
including difficulties in the assimilation of acquired operations,
technologies and products, diversion of management's attention to other
business concerns, risks of entering markets in which the Company has no, or
limited, prior experience and the potential loss of key employees of acquired
organizations. No assurance can be given as to the ability of the Company to
successfully integrate any acquired business, product, technology or personnel
with the operations of the Company, and the failure of the Company to do so
could have a material adverse effect on the Company's business, financial
condition and results of operations. While the Company has no current
agreement or negotiations underway with
 
                                       9
<PAGE>
 
respect to any such acquisition, the Company may make acquisitions of
businesses, products or technologies in the future. See "Use of Proceeds."
 
PROPRIETARY TECHNOLOGY; PENDING LITIGATION
 
  The Company believes that its principal competitive strength is its ability
to design, develop and manufacture complex optoelectronic devices and
subsystems for various industry segments. The Company does not rely upon any
of its own patents or copyrights in the development or manufacture of its
products. Accordingly, there are no legal barriers that prevent potential
competitors from copying the Company's products, processes and technologies or
from otherwise entering into operations in direct competition with the
Company.
   
  The Company's Rapiscan U.S.A. subsidiary has entered into a non-exclusive
patent license agreement with EG&G Inc. Under the license, Rapiscan U.S.A. is
permitted to make, use and sell or otherwise dispose of security and
inspection products that use an x-ray line scan system for baggage inspection
purposes covered by EG&G Inc.'s patent. The patent, which expires in 2000,
does not affect sales of the Company's security and inspection products
manufactured and sold outside of the United States. The license may be
terminated by EG&G Inc. in the event of a breach of the license agreement by
Rapiscan U.S.A. The termination of the EG&G Inc. license would have a material
adverse effect upon the Company's sales of its security and inspection
products in the United States and upon the Company's business, financial
condition and results of operations. Rapiscan U.S.A. is currently involved in
a lawsuit against EG&G Inc. and a subsidiary of EG&G Inc. in a matter not
related to the patent license agreement with EG&G Inc. See "Business--Legal
Proceedings."     
   
  In a lawsuit currently pending before the United States District Court for
the Central District of California, Lunar Corporation ("Lunar") and the
University of Alabama Research Foundation ("UAB") have alleged that OSI
Systems, Inc., UDT Sensors and Rapiscan U.S.A. infringe United States Patent
No. 4,626,688 (" '688 patent"). UAB owns the '688 patent and has granted an
exclusive license to Lunar. The '688 patent is directed to a dual energy
radiation detector. The lawsuit concerns those Rapiscan U.S.A.'s baggage
scanner products which contain a dual energy detector, and detector components
produced by UDT Sensors ("accused products"). Lunar and UAB are requesting
that the court grant them damages in an unspecified amount and an injunction
barring Rapiscan U.S.A., UDT Sensors and OSI Systems, Inc. from making, using,
selling or offering for sale, the accused products in the United States.
Rapiscan U.S.A., UDT Sensors and OSI Systems, Inc. have alleged that the
accused products do not infringe the '688 patent, that the '688 patent is
invalid and that in any event, Lunar had previously agreed that Rapiscan
U.S.A. and UDT Sensors did not infringe the '688 patent, so that Lunar's claim
is estopped, limited by laches or that an implied license has been granted by
Lunar.     
   
  The Company believes it has meritorious defenses and claims in the lawsuit
with Lunar and UAB and believes that the likelihood of Lunar and UAB
prevailing in its patent infringement lawsuit against the Company is remote.
However, no assurance can be given that the Company will be successful in this
lawsuit. In the event that the court determines that the accused products
infringe the '688 patent and that Rapiscan U.S.A. and UDT Sensors do not have
the right to use technology covered by the '688 patent, Rapiscan U.S.A. could
be prevented from marketing most of its baggage scanner products in the United
States and UDT Sensors could be prevented from marketing certain detector
components. Rapiscan U.S.A. and UDT Sensors could also be required to pay a
significant amount of damages. Any such outcome would have a material adverse
effect upon the Company's business, financial condition and results of
operations. For the nine-month period ended March 31, 1997, sales of security
and inspection products that are allegedly infringing upon Lunar and UAB's
rights constituted $8.9 million or approximately 15.9% of the Company's
revenues. Through March 31, 1997, the Company has incurred legal fees in the
amount of approximately $148,000 in connection with this lawsuit. The Company
intends to vigorously pursue its legal remedies in this lawsuit. As a result,
the Company will continue to expend significant financial and other resources
in connection with this lawsuit. See "Business--Legal Proceedings."     
 
  The Company may from time to time in the future receive communications from
third parties alleging infringements by the Company of patents or other
intellectual property rights owned by such third parties. If
 
                                      10
<PAGE>
 
any of the Company's products are found to infringe a patent, a court may
grant an injunction to prevent the Company from making, selling or using these
products in the applicable country. Protracted litigation may be necessary to
defend the Company against alleged infringement of others' rights.
Irrespective of the validity or the success of such claims, the defense of
such claims could result in significant costs to the Company and the diversion
of time and effort by management, either of which by itself could have a
material adverse effect on the business, financial condition and results of
operations of the Company. Further, adverse determinations in such litigation
could subject the Company to significant liabilities (including treble damages
under certain circumstances), or prevent the Company from selling certain of
its products. If infringement claims are asserted against the Company, the
Company may be forced to seek to obtain a license of such third party's
intellectual property rights. No assurance can be given that the Company could
enter into such a license agreement on terms favorable to the Company, or at
all. The failure to obtain such a license agreement on reasonable terms could
have an adverse effect on the Company's business, financial condition and
results of operations.
 
RISKS ASSOCIATED WITH MANUFACTURING
 
  The Company's ability to manufacture optoelectronic subsystems as well as
security and inspection products is dependent upon the optoelectronic devices
manufactured at the Company's Hawthorne, California facility. In addition, the
Company's success also depends on its ability to manufacture its products at
its various other facilities. Accordingly, any material disruption in the
operations of any of its manufacturing facilities, and especially at its
Hawthorne, California facility, would have a material adverse effect on the
Company's business, financial condition and results of operations. Such
interruption or disruption could occur due to the unavailability of parts,
labor or raw materials, to political unrest, or to natural disasters, such as
earthquakes or fires. The Company also believes that its long-term competitive
position depends in part on its ability to increase manufacturing capacity. No
assurance can be given that the Company will be able to increase its
manufacturing capabilities in the future. The failure of the Company to build
or acquire sufficient additional manufacturing capacity if and when needed
could adversely impact the Company's relationships with its customers and
materially adversely affect the Company's business, financial condition and
results of operations.
 
PRODUCT LIABILITY RISKS
 
  The Company's business exposes it to potential product liability risks,
particularly with respect to its security and inspection products. There are
many factors beyond the control of the Company that could lead to liability
claims, including the failure of the products in which the Company's
subsystems are installed, the reliability of the customer's operators of the
inspection equipment, and the maintenance of the inspection units by the
customers. There can be no assurance that the amount of product liability
insurance that the Company carries will be sufficient to protect the Company
from product liability claims. A product liability claim in excess of the
amount of insurance carried by the Company could have a material adverse
effect on the Company's business, financial condition and results of
operations.
 
DEPENDENCE ON KEY PERSONNEL
   
  The Company is highly dependent upon the continuing contributions of its key
management, technical and product development personnel. In particular, the
Company is dependent upon the services of Deepak Chopra, the Chairman of the
Company's Board of Directors, its President and Chief Executive Officer. In
addition, the loss of the services of any of the Company's other senior
managerial, technical or product development personnel could materially
adversely affect the Company's business, financial condition and results of
operations. The Company has entered into a five-year employment agreement with
Mr. Chopra and maintains a $13 million policy of key man life insurance on the
life of Mr. Chopra. The Company has also entered into shorter-term employment
agreements with certain of the Company's senior managerial and technical
personnel but does not maintain key man insurance policies on any of its other
employees. The     
 
                                      11
<PAGE>
 
Company's future success depends on its continuing ability to attract, retain
and motivate highly qualified managerial and technical personnel. Competition
for qualified technical personnel is intense. There can be no assurance that
these individuals will continue employment with the Company. The loss of
certain key personnel could materially adversely affect the Company's
business, financial condition and results of operations. See "Business--
Employees" and "Management."
 
ENVIRONMENTAL REGULATION
 
  The Company is subject to various federal, state and local environmental
laws, ordinances and regulations relating to the use, storage, handling and
disposal of certain hazardous substances and wastes used or generated in the
manufacturing and assembly of the Company's products. Under such laws, the
Company may become liable for the costs of removal or remediation of certain
hazardous substances or wastes that have been or are being disposed of offsite
as wastes or that have been or are being released on or in its facilities.
Such laws may impose liability without regard to whether the Company knew of,
or caused, the release of such hazardous substances or wastes. The Company
believes that it is currently in compliance with all material environmental
regulations in connection with its manufacturing operations, that it has
obtained all necessary material environmental permits to conduct its business
and has no knowledge of any offsite disposal or releases on site that could
have a material adverse affect on the Company. However, there can be no
assurance that any environmental assessments undertaken by the Company with
respect to its facilities have revealed all potential environmental
liabilities, that any prior operator of the properties did not create any
material environmental condition not known to the Company, or that an
environmental condition that could result in penalties, expenses, or liability
for the Company does not otherwise exist in any one or more of the facilities.
In addition, the amount of hazardous substances or wastes produced or
generated by the Company may increase in the future depending on changes in
the Company's operations. Any failure by the Company to comply with present or
future regulations could subject the Company to the imposition of substantial
fines, suspension of production, alteration of manufacturing processes or
cessation of operations, any of which could have a material adverse effect on
the Company's business, financial condition and results of operations.
Compliance with such regulations could require the Company to acquire
expensive remediation equipment or to incur substantial expenses. Any failure
of the Company to control or properly manage the use, disposal, removal or
storage of, or to adequately restrict the discharge of, or assist in the
cleanup of, hazardous or toxic substances, could subject the Company to
significant liabilities, including joint and several and retroactive liability
under certain statutes. Furthermore, the presence of hazardous substances on a
property or at certain offsite locations could result in the Company incurring
substantial liabilities as a result of a claim by a private third party for
personal injury or a claim by an adjacent property owner for property damage.
The imposition of any of the foregoing liabilities could materially adversely
affect the Company's business, financial condition and results of operations.
See "Business--Environmental Regulations."
 
CONCENTRATION OF OWNERSHIP; CONTROL BY MANAGEMENT
 
  Upon successful completion of this Offering, the Company's principal
shareholders, Scope Industries and Deepak Chopra, the President and Chief
Executive Officer of the Company, will beneficially own approximately 18.3%
and 16.2%, respectively, of the Company's Common Stock (17.4% and 14.3%,
respectively, if the Underwriters' over-allotment option is exercised in
full), and the present directors and executive officers of the Company
(including Scope Industries, an affiliate of one of the directors) will, in
the aggregate, beneficially own 40.9% of the outstanding Common Stock (36.9%
if the Underwriters' over-allotment option is exercised in full). Meyer
Luskin, the President, Chief Executive Officer, Chairman of the Board of
Directors and principal shareholder of Scope Industries, is a director of the
Company. Consequently, Scope Industries, together with the Company's directors
and executive officers acting in concert, will have the ability to
significantly affect the election of the Company's directors and have a
significant effect on the outcome of corporate actions requiring shareholder
approval. Such concentration may also have the effect of delaying or
preventing a change of control of the Company. See "Principal and Selling
Shareholders," and "Management."
 
                                      12
<PAGE>
 
POSSIBLE ADVERSE EFFECTS OF AUTHORIZATION OF PREFERRED STOCK; POTENTIAL ANTI-
TAKEOVER PROVISIONS
   
  The Company's Articles of Incorporation authorize the Company's Board of
Directors to issue up to 10,000,000 shares of preferred stock in one or more
series, to fix the rights, preferences, privileges and restrictions granted to
or imposed upon any wholly unissued shares of preferred stock, to fix the
number of shares constituting any such series, and to fix the designation of
any such series, without further vote or action by its shareholders. The terms
of any series of preferred stock, which may include priority claims to assets
and dividends and special voting rights, could adversely affect the rights of
the holders of Common Stock and thereby reduce the value of the Common Stock.
The Company has no present plans to issue shares of preferred stock. The
issuance of preferred stock, coupled with the concentration of ownership in
the directors and executive officers, could discourage certain types of
transactions involving an actual or potential change in control of the
Company, including transactions in which the holders of Common Stock might
otherwise receive a premium for their shares over then current prices,
otherwise dilute the rights of holders of Common Stock, and may limit the
ability of such shareholders to cause or approve transactions which they may
deem to be in their best interests, all of which could have a material adverse
effect on the market price of the Common Stock offered hereby. See
"Description of Capital Stock--Preferred Stock."     
 
ABSENCE OF PRIOR PUBLIC MARKET AND POSSIBLE VOLATILITY OF STOCK PRICE;
DILUTION
 
  Prior to this Offering there has been no public market for the Common Stock.
The Company has filed an application to have the Common Stock approved for
quotation on the Nasdaq National Market. However, there can be no assurance
that an active trading market for the Common Stock will develop or be
sustained after the Offering. The initial public offering price will be
determined through negotiations between the Company and the representatives of
the Underwriters. See "Underwriting." Additionally, the market price of the
Common Stock could be subject to significant fluctuations in response to
variations in actual and anticipated quarterly operating results and other
factors, including announcements of new products or technical innovations by
the Company or its competitors. Further, investors participating in the
Offering will incur immediate and substantial dilution in the net tangible
book value of their shares. See "Dilution."
 
SHARES ELIGIBLE FOR FUTURE SALE
 
  Sales of substantial amounts of Common Stock in the public market following
this Offering could have an adverse effect on the market price of the Common
Stock. Upon completion of this Offering, the Company will have outstanding
approximately 9,458,874 shares of Common Stock, of which 3,700,000 shares
offered hereby (4,255,000 shares if the Underwriters' over-allotment option is
exercised in full), will be freely tradeable without restriction or further
registration under the Securities Act. The remaining 5,758,874 shares of
Common Stock outstanding upon completion of this Offering are "restricted
securities" as that term is defined in Rule 144 promulgated under the
Securities Act ("Rule 144"). Pursuant to lock-up agreements between certain
securityholders and representatives of the Underwriters, the securityholders
have agreed not to sell approximately 5,731,000 shares of Common Stock
(including any additional shares issued upon the exercise of any options) for
180 days following the date of this Prospectus. However, beginning 180 days
after the date of this Prospectus, subject in certain cases to the volume
restrictions of Rule 144, all 5,758,874 shares will become freely transferable
and available for immediate sale in the public market. The existence of a
large number of shares eligible for future sale could have an adverse impact
on the Company's ability to raise additional equity capital or on the price at
which such equity capital could by raised.
 
LIMITATION ON OFFICERS' AND DIRECTORS' LIABILITIES UNDER CALIFORNIA LAW
   
  The Company's Articles of Incorporation provide that, pursuant to the
California Corporations Code, the liability of the directors of the Company
for monetary damages shall be eliminated to the fullest extent permissible
under California law. This is intended to eliminate the personal liability of
a director for monetary damages in an action brought by, or in the right of,
the Company for breach of a director's duties to the Company or its
shareholders. This provision does not eliminate the directors' fiduciary duty
and does not apply     
 
                                      13
<PAGE>
 
for certain liabilities: (i) for acts or omissions that involve intentional
misconduct or a knowing and culpable violation of law; (ii) for acts or
omissions that a director believes to be contrary to the best interest of the
Company or its shareholders or that involve the absence of good faith on the
part of the director; (iii) for any transaction from which a director derived
an improper personal benefit; (iv) for acts or omissions that show a reckless
disregard for the director's duty to the Company or its shareholders in
circumstances in which the director was aware, or should have been aware, in
the ordinary course of performing a director's duties, of a risk of serious
injury to the Company or its shareholders; (v) for acts or omissions that
constitute an unexcused pattern of inattention that amounts to an abdication
of the director's duty to the Company or its shareholders; (vi) with respect
to certain transactions or the approval of transactions in which a director
has a material financial interest; and (vii) expressly imposed by statute for
approval of certain improper distributions to shareholders or certain loans or
guarantees. See "Management--Limitation on Directors' Liability."
   
BROAD DISCRETION AS TO USE OF PROCEEDS     
   
  Of the net proceeds of the Offering to be received by the Company,
approximately $31.4 million or approximately 76.2% of the total estimated net
proceeds has been generally allocated to increasing the Company's research and
development activities, to enhancing the Company's sales and marketing
capabilities, to pursuing possible acquisitions, and for working capital
purposes. The amount of net proceeds allocated to each of these specific
purposes has not been established and will, therefore, be used for these
purposes as management may determine in its sole discretion without the need
for shareholder approval with respect to any such allocation.     
 
                                      14
<PAGE>
 
                                USE OF PROCEEDS
 
  The net proceeds to the Company from its sale of 3,330,000 shares of Common
Stock offered hereby at an assumed initial public offering price of $13.50 per
share, after deducting estimated underwriting discounts and commissions and
estimated offering expenses payable by the Company, are estimated to be
approximately $41.2 million. The Company will not receive any proceeds from
the sale of shares of Common Stock by the Selling Shareholders. The Selling
Shareholders who own the 370,000 shares to be sold in this Offering will bear
their pro rata share of all expenses incurred in connection with this
Offering.
   
  The principal reasons for this Offering are to enable the Company to repay
bank indebtedness, to increase the Company's research and development
activities, to enhance its sales and marketing capabilities, to pursue
possible acquisitions, and to increase the Company's funds available for
general corporate purposes, including working capital purposes. Although a
portion of the net proceeds may be used to pursue possible strategic
acquisitions, the Company is not currently a party to any commitments or
agreements, and is not currently involved in any negotiations with respect to
any acquisitions. While the Company intends to use the net proceeds it
receives from this Offering for the foregoing purposes, other than the
repayment of indebtedness, the Company is currently unable to specifically
allocate the net proceeds among the foregoing purposes. See "Risk Factors--
Broad Discretion as to Use of Proceeds." The Company intends to repay a total
of approximately $9.8 million outstanding under various bank facilities as
described below.     
 
<TABLE>
<CAPTION>
                      APPROXIMATE
                       PRINCIPAL
                       AMOUNT AT          RATE BASIS            RATE AT
   FACILITY          MARCH 31, 1997       PER ANNUM(1)       MARCH 31, 1997   MATURITY
   --------          --------------       -----------        --------------   --------
   <S>               <C>            <C>                      <C>            <C>
   Revolving Credit    $4,927,000   Variable rate plus 0.25%      8.75%     November 1998
   Term Loan            2,500,000   Variable rate plus 0.50%      9.00%     March 2001
   Revolving Credit     1,442,000   Variable rate plus 1.50%     10.00%     On demand
   Term Loan               66,000   Variable rate plus 2.25%     10.75%     November 1997
   Revolving Credit       354,000   Variable rate                 6.65%     Evergreen
   Term Loan              504,000   5.75%                         5.75%     June 2001
</TABLE>
- ---------------------
(1) The term "variable rate" means the bank's prime rate or other published
    reference rate. See "Management's Discussion and Analysis of Financial
    Condition and Results of Operations--Liquidity and Capital Resources."
   
  Borrowings under the foregoing bank facilities are generally used for
working capital purposes. However, in connection with the acquisition of AME
earlier this year, the Company borrowed approximately $900,000 under these
facilities to pay the cash portion of the purchase price of that subsidiary.
    
  The Company is also considering exercising its option to purchase its
headquarters and its engineering and manufacturing facilities in Hawthorne,
California. See "Business--Facilities." If the Company elects to purchase the
facilities, it may use a portion of the proceeds of this Offering to pay part
or all of the approximately $3.0 million purchase price.
 
  Pending the foregoing uses, the Company intends to invest the net proceeds
of this Offering in short-term, interest bearing, investment-grade securities.
 
                                DIVIDEND POLICY
 
  The Company currently anticipates that it will retain any available funds
for use in the operation of its business, and does not currently intend to pay
any cash dividends in the foreseeable future. Future cash dividends, if any,
will be determined by the Board of Directors. The payment of cash dividends by
the Company is restricted by certain of the Company's current bank credit
facilities, and future borrowings may contain similar restrictions.
 
                                      15
<PAGE>
 
                                CAPITALIZATION
 
  The following table sets forth: (i) the actual short-term debt and
capitalization of the Company as of March 31, 1997; (ii) the pro forma short-
term debt and capitalization of the Company giving effect to the conversion of
the Company's outstanding shares of preferred stock into 3,853,125 additional
shares of Common Stock and the filing of the Amended and Restated Articles of
Incorporation; and (iii) the pro forma capitalization as adjusted to give
effect to the sale of the 3,330,000 shares of Common Stock offered by the
Company hereby at an assumed initial public offering price of $13.50 per share
and the application of the estimated net proceeds from the Offering.
 
<TABLE>
<CAPTION>
                                                         MARCH 31, 1997
                                                  -----------------------------
                                                                     PRO FORMA
                                                  ACTUAL  PRO FORMA AS ADJUSTED
                                                  ------- --------- -----------
                                                   (In thousands, except share
                                                          information)
<S>                                               <C>     <C>       <C>
Short-term debt.................................. $ 8,324  $ 8,324    $   764
                                                  =======  =======    =======
Long-term debt, less current portion.............   3,063    3,063        830
Shareholders' equity:
  Preferred Stock, $1.00 liquidation value;
   3,000,000 shares authorized; 2,568,750 shares
   issued and outstanding, actual;
   none issued and outstanding, pro forma and pro
   forma as adjusted                                4,014      --         --
  Preferred Stock, no par value;
   10,000,000 shares authorized, pro forma and
   pro forma as adjusted; none issued and
   outstanding...................................     --       --         --
  Common Stock, no par value(1); 4,500,000 shares
   authorized; 40,000,000 shares authorized, pro
   forma and pro forma as adjusted;
   2,207,124 shares issued and outstanding,
   actual;
   6,060,249 issued and outstanding, pro forma;
   9,390,249 issued and outstanding, pro forma as
   adjusted......................................   2,913    6,927     48,135
  Retained earnings..............................   7,928    7,928      7,928
  Cumulative foreign currency translation
   adjustment....................................     127      127        127
                                                  -------  -------    -------
    Total shareholders' equity...................  14,982   14,982     56,190
                                                  -------  -------    -------
      Total capitalization....................... $18,045  $18,045    $57,020
                                                  =======  =======    =======
</TABLE>
- ---------------------
(1) Excludes 499,125 shares of Common Stock issuable upon exercise of
    outstanding stock options as of March 31, 1997 and up to 45,486 shares of
    Common Stock that may be issuable as additional consideration for the
    Company's purchase in November 1996 of certain minority shareholdings in
    Rapiscan U.S.A. See "Certain Transactions."
 
                                      16
<PAGE>
 
                                   DILUTION
 
  The net tangible book value of the Company at March 31, 1997 (giving effect
to the conversion of preferred stock outstanding as of March 31, 1997 into
3,853,125 shares of Common Stock), was $13,230,000 or $2.18 per share. Net
tangible book value per share is determined by dividing the net tangible book
value of the Company (total assets net of goodwill less total liabilities of
the Company) by the number of shares of Common Stock outstanding (giving
effect to the conversion of preferred stock outstanding as of March 31, 1997
into 3,853,125 shares of Common Stock). After giving effect to the sale of
3,330,000 shares offered by the Company hereby at an assumed initial public
offering price of $13.50 per share (after deduction of estimated underwriting
discounts and commissions and estimated offering expenses), the pro forma net
tangible book value of the Company as of March 31, 1997 would have been
$54,438,000, or $5.80 per share. This represents an immediate increase in the
net tangible book value of $3.62 per share to existing shareholders and an
immediate dilution in pro forma net tangible book value of $7.70 per share to
new investors. The following table illustrates this per share dilution:
 
<TABLE>
   <S>                                                             <C>   <C>
   Assumed initial public offering price..........................       $13.50
     Net tangible book value before Offering...................... $2.18
     Increase in net tangible book value attributable to this
      Offering....................................................  3.62
                                                                   -----
   Pro forma net tangible book value after Offering...............         5.80
                                                                         ------
   Dilution to new investors......................................       $ 7.70
                                                                         ======
</TABLE>
 
  The following table sets forth on a pro forma basis as of March 31, 1997,
the number of shares of Common Stock purchased from the Company, the total
consideration paid, and the average price per share paid by the existing
shareholders and by purchasers of the shares of Common Stock offered hereby
(giving effect to the conversion of preferred stock outstanding as of March
31, 1997 into 3,853,125 shares of Common Stock and assuming the sale of
3,330,000 shares by the Company at an assumed initial public offering price of
$13.50 per share, before deduction of underwriting discounts and commissions
and offering expenses):
 
<TABLE>
<CAPTION>
                            SHARES PURCHASED  TOTAL CONSIDERATION
                            ----------------- ------------------- AVERAGE PRICE
                             NUMBER   PERCENT   AMOUNT    PERCENT   PER SHARE
                            --------- ------- ----------- ------- -------------
   <S>                      <C>       <C>     <C>         <C>     <C>
   Existing shareholders..  6,060,249   64.5% $ 6,927,000   13.4%    $ 1.14
   New public investors...  3,330,000   35.5   44,955,000   86.6     $13.50
                            ---------  -----  -----------  -----
    Total.................  9,390,249  100.0% $51,882,000  100.0%
                            =========  =====  ===========  =====
</TABLE>

  The foregoing table does not take into effect the exercise of outstanding
options to purchase 68,625 shares of Common Stock for $66,750 subsequent to
March 31, 1997. As of the date of this Prospectus, there are outstanding
options to purchase an aggregate of 864,986 of Common Stock at a weighted
average exercise price of approximately $7.32 per share. In addition, the
Company may be obligated to issue up to an additional 45,486 shares of Common
Stock after June 30, 1997 as additional consideration for the Company's
purchase in November 1996 of certain minority shares in Rapiscan U.S.A. To the
extent that options are exercised or additional shares are issued, there will
be further dilution to new investors. See "Management--Stock Option Plans" and
"Certain Transactions."
 
                                      17
<PAGE>
 
                     SELECTED CONSOLIDATED FINANCIAL DATA
 
  The following table sets forth for the periods and the dates indicated
certain financial data which should be read in conjunction with "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
the consolidated financial statements and notes thereto included elsewhere
herein. The statement of operations data for each of the three fiscal years in
the period ended June 30, 1996 and for the nine months ended March 31, 1997,
and the balance sheet data at June 30, 1995 and 1996 and March 31, 1997 are
derived from the consolidated financial statements of the Company which have
been audited by Deloitte & Touche, LLP, independent accountants, and are
included elsewhere in this Prospectus. The statements of operations data for
the years ended June 30, 1992 and 1993 and the balance sheet data at June 30,
1992, 1993, and 1994 are derived from audited financial statements not
otherwise contained herein. The consolidated statement of operations data for
the nine months ended March 31, 1996 are derived from unaudited financial
statements of the Company included elsewhere herein. The unaudited financial
statements have been prepared by the Company on a basis consistent with the
Company's audited consolidated financial statements and, in the opinion of
management, include all adjustments, consisting only of normal recurring
accruals, necessary for a fair presentation of the Company's results of
operations for the period. The results of operations for the nine months ended
March 31, 1997 are not necessarily indicative of future results.
 
<TABLE>   
<CAPTION>
                                                                   NINE MONTHS ENDED
                                    YEAR ENDED JUNE 30,                MARCH 31,
                          --------------------------------------- -------------------
                           1992    1993    1994    1995    1996      1996      1997
                          ------- ------- ------- ------- ------- ----------- -------
                                (In thousands, except share and per share data)
                                                                  (Unaudited)
<S>                       <C>     <C>     <C>     <C>     <C>     <C>         <C>
CONSOLIDATED STATEMENTS
 OF OPERATIONS DATA:
Revenues................  $21,471 $27,225 $47,735 $49,815 $61,518   $44,994   $55,973
Cost of goods sold......   16,581  20,591  36,037  37,818  45,486    33,638    40,380
                          ------- ------- ------- ------- -------   -------   -------
Gross profit............    4,890   6,634  11,698  11,997  16,032    11,356    15,593
Operating expenses:
 Selling, general and
  administrative(1).....    2,914   4,014   7,974   7,601   9,757     6,745     8,183
 Research and
  development...........      847   1,034   1,451   1,591   1,663     1,280     1,737
 Stock option
  compensation(2).......      --      --      --      --      --        --        856
                          ------- ------- ------- ------- -------   -------   -------
 Total operating
  expenses..............    3,761   5,048   9,425   9,192  11,420     8,025    10,776
                          ------- ------- ------- ------- -------   -------   -------
Income from operations..    1,129   1,586   2,273   2,805   4,612     3,331     4,817
Interest expense........      650     471     710   1,251   1,359     1,026       900
                          ------- ------- ------- ------- -------   -------   -------
Income before income
 taxes and minority
 interest...............      479   1,115   1,563   1,554   3,253     2,305     3,917
Provision for income
 taxes..................      148     462     814     413   1,111       787       983
                          ------- ------- ------- ------- -------   -------   -------
Income before minority
 interest...............      331     653     749   1,141   2,142     1,518     2,934
Minority interest.......      --        6      38      17     117        28       --
                          ------- ------- ------- ------- -------   -------   -------
Net income..............     $331    $659    $787  $1,158  $2,259    $1,546    $2,934
                          ======= ======= ======= ======= =======   =======   =======
Pro forma net
 income(3)(4)...........                                   $2,308    $1,643    $3,026
                                                          =======   =======   =======
Pro forma net income per
 share(3)(4)(5).........                                    $0.37     $0.26     $0.48
                                                          =======   =======   =======
Pro forma weighted
 average shares
 outstanding(4)........                                 6,308,126 6,304,158 6,327,234
</TABLE>    
 
<TABLE>
<CAPTION>
                                                JUNE 30,              MARCH 31,
                                   ---------------------------------- ---------
                                    1992   1993   1994   1995   1996    1997
                                   ------ ------ ------ ------ ------ ---------
                                                  (In thousands)
<S>                                <C>    <C>    <C>    <C>    <C>    <C>
CONSOLIDATED BALANCE SHEET DATA:
 Cash.............................   $546   $941   $625 $1,405   $581  $1,612
 Working capital..................  3,728  3,852  2,280 12,117  6,044   9,940
 Total assets..................... 10,548 15,739 25,807 30,780 35,309  44,314
 Total debt.......................  6,090  6,882 11,140 14,113 15,462  11,387
 Total shareholders' equity.......  1,677  2,256  3,128  4,951  7,194  14,982
</TABLE>
- ------------------
(1) Fiscal 1994 includes a one time charge of $1.5 million incurred in
    connection with the settlement of a governmental proceeding. See
    "Business--Legal Proceedings."
   
(2) Represents a charge resulting from the acceleration of the vesting periods
    of outstanding stock options having exercise prices below the fair market
    value on the date of grant.     
(3) Gives effect to the conversion of certain subordinated debt into preferred
    stock and Common Stock in October and November 1996, and the issuance of
    Common Stock for the purchase of the remaining minority interests in
    certain subsidiaries in September and November 1996 as if such
    transactions occurred on July 1, 1995. Pro forma adjustments for the year
    ended June 30, 1996 and each of the nine-month periods ended March 31,
    1996 and 1997 consist of: (i) the elimination of interest expenses related
    to converted subordinated debt of $166,000, $125,000 and $92,000, net of
    income taxes, respectively; and (ii) the elimination of the minority
    interest in the net loss of subsidiaries of $117,000, $28,000 and $0,
    respectively.
   
(4) Supplementary pro forma net income for the year ended June 30, 1996 and
    for each of the nine month periods ended March 31, 1996 and 1997 is
    $2,913,000, $2,086,000 and $3,464,000, respectively, reflecting the
    reduction in interest expense, net of income taxes, from the effect of
    debt repayments discussed under "Use of Proceeds." Supplementary pro forma
    net income per share for the corresponding periods is $0.41, $0.29 and
    $0.49, respectively, and reflects only the additional shares issued to
    repay that debt.     
   
(5) Assumes the conversion of 2,568,750 shares of preferred stock into
    3,853,125 shares of Common Stock as of July 1, 1995.     
 
                                      18
<PAGE>
 
                     MANAGEMENT'S DISCUSSION AND ANALYSIS
               OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
OVERVIEW
 
  The Company is a vertically integrated worldwide provider of devices,
subsystems and end-products based on optoelectronic technology. The Company
designs and manufactures optoelectronic devices and value added subsystems for
OEMs for use in a broad range of applications, including security, medical
diagnostics, telecommunications, office automation, aerospace, computer
peripherals and industrial automation. In addition, the Company utilizes its
optoelectronic technology and design capabilities to manufacture security and
inspection products that it markets worldwide to end users under the
"Rapiscan" brand name. These products are used to inspect baggage, cargo and
other objects for weapons, explosives, drugs and other contraband. In the nine
month period ended March 31, 1997, revenues from the sale of optoelectronic
devices and subsystems amounted to $31.7 million, or approximately 56.6% of
the Company's revenues, while revenues from sales of security and inspection
products amounted to $24.3 million, or approximately 43.4% of the Company's
revenues.
 
  The Company was organized in May 1987. The Company's initial products were
optoelectronic devices and subsystems sold to customers for use in the
manufacture of x-ray scanners for carry-on airline baggage. In December 1987,
the Company formed OSI Singapore to manufacture optoelectronic devices and
subsystems. In April 1990, the Company acquired United Detector Technology's
subsystem business. In February 1993, the Company acquired the Rapiscan UK
security and inspection operations and, through Rapiscan U.S.A., commenced its
operations as a provider of security and inspection products in the United
States. In April 1993, the Company acquired Ferson, a U.S. manufacturer of
passive optic components. In July 1994, the Company established OSI Malaysia
to manufacture optoelectronic subsystems as well as security and inspection
products. In March 1997, the Company acquired AME for the purpose of
broadening its optoelectronic subsystem business in Europe. The Company
currently owns all of the outstanding shares of each of these companies.
 
  In January 1994 the Company entered into a joint venture agreement with
Electronics Corporation of India, Limited ("ECIL"), an unaffiliated Indian
corporation, pursuant to which the Company and ECIL formed ECIL-Rapiscan
Security Products Limited ("ECIL Rapiscan"). The joint venture was established
for the purpose of manufacturing security and inspection products in India
from kits sold to ECIL by the Company. The Company currently owns a 36.0%
interest in ECIL Rapiscan.
 
  The Company engages in significant international operations. The Company
currently manufactures its optoelectronic devices and subsystems at its
facilities in Hawthorne, California, in Ocean Springs, Mississippi, in Johor
Bahru, Malaysia, and in Horten, Norway. Its security and inspection products
are manufactured at its facilities in Crawley, England, in Long Beach,
California, and in Johor Bahru, Malaysia. The Company markets its products
worldwide through approximately 44 sales and marketing employees located in
five countries, and through approximately 95 independent sales
representatives. Revenues from shipments made outside of the United States
accounted for 32.0%, 38.0%, and 39.3% of revenues for the fiscal years 1995
and 1996 and for the nine months ended March 31, 1997, respectively.
Information regarding the Company's operating income or loss and identifiable
assets attributable to each of the Company's geographic areas is set forth in
Note 14 in the Company's Consolidated Financial Statements.
 
  The effective income tax rate for the Company for fiscal 1995, fiscal 1996
and the nine-month period ended March 31, 1997 was 26.6%, 34.2% and 25.1%,
respectively. Certain products manufactured in the United States and sold
overseas are sold through a Foreign Sales Corporation ("FSC") organized by the
Company in 1990. Export sales made through the FSC are subject to federal tax
advantages. If the tax advantages derived from sales made through the FSC and
certain existing state and federal tax credits remain in effect, and if
certain future foreign tax benefits are received as anticipated, the Company
believes that its effective income tax rate will be below 32.0% during the
next three fiscal years.
 
 
                                      19
<PAGE>
 
  The Company's products currently address two principal markets. The
Company's optoelectronic devices and subsystems are designed and manufactured
primarily for sale to OEMs, while the Company's security and inspection
products are sold to end-users. Two principal customers of the Company's
optoelectronic devices and subsystems are the Company's Rapiscan UK and
Rapiscan U.S.A. subsidiaries. Revenues from the sale of the Company's
optoelectronic devices and subsystems to these two subsidiaries are eliminated
from the Company's reported revenues. Revenues from the Company's principal
markets and intercompany eliminations are presented in the table below.
 
<TABLE>
<CAPTION>
                                                                NINE MONTHS
                                     YEAR ENDED JUNE 30,      ENDED MARCH 31,
                                   -------------------------  ----------------
                                    1994     1995     1996     1996     1997
                                   -------  -------  -------  -------  -------
                                               (In thousands)
<S>                                <C>      <C>      <C>      <C>      <C>
Optoelectronic devices and
 subsystems....................... $34,729  $37,977  $45,007  $33,493  $36,228
(Inter-company eliminations)......  (1,257)  (1,529)  (6,392)  (5,424)  (4,551)
                                   -------  -------  -------  -------  -------
 Unaffiliated optoelectronic
  devices and subsystems .........  33,472   36,448   38,615   28,069   31,677
Security and inspection products..  14,263   13,367   22,903   16,925   24,296
                                   -------  -------  -------  -------  -------
 Total revenues................... $47,735  $49,815  $61,518  $44,994  $55,973
                                   =======  =======  =======  =======  =======
 
  In recent years, the Company has experienced increased revenues from its
security and inspection products, both in absolute dollars and as a percentage
of total Company revenues, a trend which the Company believes will continue.
The Company has recently initiated a program to produce larger security and
inspection products, including those for use in inspecting cargo, which
products are likely to have significantly higher selling prices than most of
the Company's products sold to date. Sales of products with higher average
selling prices may increase fluctuations in the Company's quarterly revenues
and earnings.
 
  The Company recognizes revenues upon shipment. As the Company's product
offerings change to include sales of significantly larger systems, such as
cargo inspection products, the Company may adopt the percentage of completion
method of revenue recognition for certain products.
 
RESULTS OF OPERATIONS
 
  The following table sets forth certain income and expenditure items as a
percentage of total revenues for the periods indicated:
 
<CAPTION>
                                                                NINE MONTHS
                                     YEAR ENDED JUNE 30,      ENDED MARCH 31,
                                   -------------------------  ----------------
                                    1994     1995     1996     1996     1997
                                   -------  -------  -------  -------  -------
<S>                                <C>      <C>      <C>      <C>      <C>
Revenues..........................   100.0%   100.0%   100.0%   100.0%   100.0%
Cost of goods sold................    75.5     75.9     73.9     74.8     72.2
                                   -------  -------  -------  -------  -------
Gross profit......................    24.5     24.1     26.1     25.2     27.8
Operating expenses:
 Selling, general and
  administrative..................    16.7     15.3     15.9     15.0     14.6
 Research and development.........     3.0      3.2      2.7      2.8      3.1
 Stock option compensation........     --       --       --       --       1.5
                                   -------  -------  -------  -------  -------
  Total operating expenses........    19.7     18.5     18.6     17.8     19.2
                                   -------  -------  -------  -------  -------
Income from operations............     4.8      5.6      7.5      7.4      8.6
Interest expense..................     1.5      2.5      2.2      2.3      1.6
                                   -------  -------  -------  -------  -------
Income before income taxes and
 minority interest................     3.3      3.1      5.3      5.1      7.0
Provision for income taxes........     1.7      0.8      1.8      1.7      1.8
                                   -------  -------  -------  -------  -------
Income before minority interest...     1.6      2.3      3.5      3.4      5.2
Minority interest.................     --       --       0.2      --       --
                                   -------  -------  -------  -------  -------
Net income........................     1.6%     2.3%     3.7%     3.4%     5.2%
                                   =======  =======  =======  =======  =======
</TABLE>
 
 
                                      20
<PAGE>
 
COMPARISON OF THE NINE-MONTH PERIOD ENDED MARCH 31, 1997 TO THE NINE-MONTH
PERIOD ENDED MARCH 31, 1996
 
  Revenues. Revenues consist of sales of optoelectronic devices and subsystems
as well as of security and inspection products. Revenues are recorded net of
all intercompany eliminations. For the nine-month period ended March 31, 1997,
revenues increased by $11.0 million, or 24.4%, to $56.0 million from $45.0
million in the comparable period ended March 31, 1996. Revenue from the sale
of optoelectronic devices and subsystems, net of inter-company eliminations,
increased by $3.6 million, or 12.9%, to $31.7 million from $28.1 million in
the comparable period ended March 31, 1996. The increase was the result of
increased orders from existing customers, particularly in the medical
diagnostics industry, and the expansion of the Company's product base. Revenue
from the sale of security and inspection products increased by $7.4 million,
or 43.6%, to $24.3 million from $16.9 million in the comparable 1996 period.
The increase was due mainly to the continued acceptance of the Rapiscan Series
500 EPX System, which was introduced in 1995, and growth in sales of the
Rapiscan 119 tabletop model.
 
  Gross Profit. Cost of goods sold consists of material, labor and
manufacturing overhead. For the nine-month period ended March 31, 1997, gross
profit increased by $4.2 million, or 37.3%, to $15.6 million from $11.4 in the
comparable 1996 period. As a percentage of revenues, gross profit increased to
27.8% in the 1997 period from 25.2% in the comparable 1996 period. Gross
margin increased as a result of the fact that fixed costs did not increase
proportionally with the increase in revenues. In addition, gross profit
improved as a result of the Company continuing to increase the production of
product manufactured at its offshore facilities, thereby capitalizing on lower
labor and other manufacturing costs.
 
  Selling, General and Administrative. Selling, general and administrative
expenses consist primarily of compensation paid to sales, marketing, and
administrative personnel, professional service fees, and marketing expenses.
For the nine-month period ended March 31, 1997, such expenses increased by
$1.5 million, or 21.3%, to $8.2 million from $6.7 million in the comparable
1996 period. As a percentage of revenues, selling, general and administrative
expenses decreased to 14.6% from 15.0%. The increase in expenses was due to
increases in payroll expenses to support revenue growth as well as to
increases in legal expenses.
 
  Research and Development. Research and development expenses include research
related to new product development and product enhancement expenditures. For
the nine-month period ended March 31, 1997, such expenses increased by
$457,000, or 35.7%, to $1.7 million from $1.3 million in the comparable 1996
period. As a percentage of revenues, research and development expenses
increased to 3.1% from 2.8%. The increase was due primarily to continued
enhancement of the Rapiscan Series 500 EPX System and efforts to develop
products for cargo scanning. In addition, the Company expensed all research
and development expenses in the 1997 period as incurred, whereas certain of
such expenses related to software products, the technological feasibility of
which had been established, were capitalized in the 1996 period.
 
  Income from Operations. Income from operations for the nine-month period
ended March 31, 1997 increased by $1.5 million, or 44.6%, to $4.8 million from
$3.3 million for the comparable 1996 period. Excluding the non-recurring non-
cash incentive compensation expense of $856,000 incurred in connection with
the acceleration of the vesting period of stock options granted to certain
employees during the 1997 period, income from operations increased by $2.3
million, or 70.3%, to $5.7 million from $3.3 million. As a percent of
revenues, income from operations increased to 8.6% from 7.4%, and excluding
the non-cash compensation expense referenced above, it would have increased to
10.1% from 7.4%.
 
  Interest Expense. Interest expense for the nine-month period ended March 31,
1997 decreased by $126,000, or 12.3%, to $900,000 from $1,026,000 during the
comparable 1996 period. As a percentage of revenues, interest expense
decreased to 1.6% from 2.3%. The decrease was due to the conversion of the
Company's subordinated debt to preferred and common stock during the 1997
period, and to a decrease in the Company's borrowings outstanding under its
lines of credit.
 
 
                                      21
<PAGE>
 
  Provision for Income Taxes. Provision for income taxes for the nine-month
period ended March 31, 1997 increased by $196,000, or 24.9%, to $983,000 from
$787,000 during the comparable 1996 period. As a percentage of income before
provision for income taxes and minority interest, provision for income taxes
decreased to 25.1% from 34.2% in the comparable 1996 period. The decrease was
a result of increases in the Company's export sales through its FSC, which has
the effect of reducing the tax rate on revenues from foreign sales made from
the United States, and the increased utilization of research and development
and certain state tax credits. In addition, the Company has made the
California Waters Edge election under California tax law, which has the effect
of exempting its foreign subsidiaries from California taxes through fiscal
2003.
   
  Net Income. For the reasons outlined above, net income for the nine-month
period ended March 31, 1997, increased $1.4 million, or 89.8%, to $2.9 million
from $1.5 million in the comparable 1996 period. The compensation charge
described above, decreased net income by $514,000 in the 1997 period.     
 
COMPARISON OF THE FISCAL YEAR ENDED JUNE 30, 1996 TO THE FISCAL YEAR ENDED
JUNE 30, 1995
 
  Revenues. Revenues for the fiscal year ended June 30, 1996 increased by
$11.7 million, or 23.5%, to $61.5 million from $49.8 million for the fiscal
year ended June 30, 1995. Revenues from the sale of optoelectronic devices and
subsystems, net of intercompany eliminations, increased by $2.2 million, or
5.9%, to $38.6 million from $36.4 million for fiscal year 1995. The increase
was the result of a 10.0% growth in sales of active optoelectronic devices and
subsystems, offset in part by a decline in sales of lenses and other passive
optic components. Revenues from the sale of security and inspection products
increased by $9.5 million, or 71.3%, to $22.9 million from $13.4 million in
the comparable 1995 period. The increase was due mainly to the increased
penetration of the U.S. security and inspection market and to larger shipments
made to two international customers.
 
  Gross Profit. Gross profit increased by $4.0 million, or 33.6%, to $16.0
million from $12.0 million for fiscal 1995. As a percentage of revenues, gross
profit increased to 26.1% from 24.1%. Gross margin increased as a result of
the Company more fully realizing the benefits of having established a
manufacturing facility in Malaysia in fiscal 1995, which had the effect of
decreasing labor rates.
 
  Selling, General and Administrative. Selling, general and administrative
expenses increased by $2.2 million, or 28.4%, to $9.8 million from $7.6
million for fiscal 1995. As a percentage of revenues, selling, general and
administrative expenses increased to 15.9% from 15.3%. The increase in
expenses was due to increases in sales and marketing activities to support the
growth in sales of security and inspection products in the United States, as
well as general increases in payroll and administration to support sales
growth.
 
  Research and Development. Research and development expenses increased by
$72,000, or 4.5%, to $1.7 million from $1.6 million for fiscal 1995. As a
percentage of revenues, research and development expenses decreased to 2.7%
from 3.2%, as increased research and development expenses related to security
and inspection products were offset in part by decreases in such expenses
related to optoelectronic products.
 
  Income from Operations. Income from operations increased by $1.8 million, or
64.4%, to $4.6 million from $2.8 million for fiscal 1995. As a percent of
revenues, income from operations increased to 7.5% from 5.6%. The increase was
due to the reasons outlined above, as both cost of goods sold and selling,
general, and administrative expenses did not increase as much as revenues
during the period.
 
  Interest Expense. Interest expense increased by $108,000, or 8.6%, to $1.4
million from $1.3 million for fiscal 1995. The increase was due to an increase
in borrowings outstanding under the Company's line of credit. As a percentage
of revenues, interest expense decreased to 2.2% from 2.5%.
 
  Provision for Income Taxes. Provision for income taxes increased by
$698,000, or 169%, to $1.1 million from $413,000 in fiscal 1995. As a
percentage of income before provision for income taxes and minority
 
                                      22
<PAGE>
 
interest, provision for income taxes increased to 34.2% in fiscal 1996 from
26.6% for the prior fiscal year. The increase resulted primarily from a
reduction in certain state income tax credits, the repeal of the federal
research and development credits, and a lower tax benefit from the Company's
FSC in fiscal 1996.
 
  Net Income. For the reasons outlined above, net income for the fiscal year
ended June 30, 1996, increased $1.1 million, or 95.1%, to $2.3 million from
$1.2 million for fiscal 1995.
 
COMPARISON OF THE FISCAL YEAR ENDED JUNE 30, 1995 TO THE FISCAL YEAR ENDED
JUNE 30, 1994
 
  Revenues. Revenues for the fiscal year ended June 30, 1995 increased by $2.1
million, or 4.4%, to $49.8 million from $47.7 million for the fiscal year
ended June 30, 1994. Revenues from the sale of optoelectronic devices and
subsystems, net of inter-company eliminations, increased by $2.9 million, or
8.9%, to $36.4 million from $33.5 million in fiscal 1994. The increase was the
result of increased sales of subsystems in most of the product markets served
by the Company. Revenues from the sale of security and inspection products
decreased by $896,000, or 6.3%, to $13.4 million from $14.3 million in fiscal
1994. The decrease was due mainly to the shipment of large orders to customers
in fiscal year 1994 that were not repeated in fiscal year 1995. Aside from the
timing of these large order shipments, base business in security and
inspection products in fiscal 1995 increased over the prior fiscal year.
 
  Gross Profit. Gross profit increased by $299,000, or 2.6%, to $12.0 million
from $11.7 million for fiscal 1994. As a percentage of revenues, gross profit
decreased to 24.1% from 24.5%. Gross margin decreased because of the start-up
expenses associated with the opening of the Company's Malaysian manufacturing
facility during fiscal 1995.
 
  Selling, General and Administrative. Selling, general and administrative
expenses decreased by $373,000, or 4.7%, to $7.6 million from $8.0 million for
fiscal 1994. As a percentage of revenues, selling, general and administrative
expenses decreased to 15.3% from 16.7%. Excluding a $1.5 million settlement
with the U.S. government which occurred in fiscal 1994, selling, general, and
administrative expenses increased by $1.1 million, or 17.4%. See "Business--
Legal Proceedings." Excluding this settlement, such expenses as a percentage
of revenues would have increased during the year from 13.6% to 15.3%. The
increase was due to increases in legal fees and other general increases
associated with revenue growth.
 
  Research and Development. Research and development expenses increased by
$140,000, or 9.6%, to $1.6 million from $1.5 million for fiscal 1994. As a
percentage of revenues, research and development expenses increased to 3.2%
from 3.0%. The increase in research and development expenses occurred
primarily due to increased expenses related to the development of security and
inspection products.
 
  Income from Operations. Income from operations increased by $532,000, or
23.4%, to $2.8 million from $2.3 million for fiscal 1994. As a percentage of
revenues, income from operations increased to 5.6% from 4.8%. The increase was
due to the decrease in selling, general, and administrative expenses in the
context of modest revenue growth.
 
  Interest Expense. Interest expense increased by $541,000, or 76.2%, to $1.3
million from $710,000 in fiscal 1994. As a percentage of revenues, interest
expense increased to 2.5% from 1.5%. The increase was due to increased
borrowings under the Company's line of credit and interest on outstanding
amounts owed under the government settlement.
 
  Provision for Income Taxes. Provision for income taxes decreased by
$401,000, or 49.3%, to $413,000 from $814,000 in fiscal 1994. As a percentage
of income before provision for income taxes and minority interest, provision
for income taxes decreased to 26.6% from 52.1%. The decrease was principally
the result of the non-deductible portion of the government settlement in
fiscal 1994.
 
  Net Income. For the reasons outlined above, net income for the fiscal year
ended June 30, 1995 increased $371,000, or 47.1%, to $1.2 million from
$787,000 for fiscal 1994.
 
                                      23
<PAGE>
 
QUARTERLY RESULTS OF OPERATIONS
 
  The following table sets forth certain statement of operations data for the
eleven consecutive quarters in the period ended March 31, 1997. This data is
unaudited but, in the opinion of management, reflects all adjustments,
consisting only of normal recurring adjustments, necessary for fair
presentation of this information in accordance with generally accepted
accounting principles. The operating results for any quarter are not
necessarily indicative of results for any future period or for the entire
fiscal year.
 
<TABLE>
<CAPTION>
                                                                QUARTER ENDED
                    -------------------------------------------------------------------------------------------------------
                    SEPT. 30, DEC. 31, MAR. 31, JUNE 30,  SEPT. 30, DEC. 31, MAR. 31,  JUNE 30, SEPT. 30, DEC. 31, MAR. 31,
                      1994      1994     1995     1995      1995      1995     1996      1996     1996      1996     1997
                    --------- -------- -------- --------  --------- -------- --------  -------- --------- -------- --------
                                                               (In thousands)
<S>                 <C>       <C>      <C>      <C>       <C>       <C>      <C>       <C>      <C>       <C>      <C>
Revenues..........   $10,981  $12,584  $13,164  $13,086    $12,539  $15,119  $17,336   $16,524   $16,530  $18,563  $20,880
Cost of goods
 sold.............     8,500    9,537   10,104    9,677      9,657   11,382   12,599    11,848    11,884   13,286   15,210
                     -------  -------  -------  -------    -------  -------  -------   -------   -------  -------  -------
Gross profit......     2,481    3,047    3,060    3,409      2,882    3,737    4,737     4,676     4,646    5,277    5,670
Operating
 expenses:
 Selling, general
  and
  administrative..     1,598    1,984    1,875    2,144      1,879    2,126    2,740     3,012     2,737    2,686    2,760
 Research and
  development.....       494      308      370      419        419      408      453       383       517      636      584
 Stock option
  compensation....       --       --       --       --         --       --       --        --        --       --       856
                     -------  -------  -------  -------    -------  -------  -------   -------   -------  -------  -------
  Total operating
   expenses.......     2,092    2,292    2,245    2,563      2,298    2,534    3,193     3,395     3,254    3,322    4,200
                     -------  -------  -------  -------    -------  -------  -------   -------   -------  -------  -------
Income from
 operations.......       389      755      815      846        584    1,203    1,544     1,281     1,392    1,955    1,470
Interest expense..       244      268      353      386        336      345      345       333       360      331      209
                     -------  -------  -------  -------    -------  -------  -------   -------   -------  -------  -------
Income before
 income taxes and
 minority
 interest.........       145      487      462      460        248      858    1,199       948     1,032    1,624    1,261
Provision for
 income taxes.....        39      129      123      122         85      293      409       324       259      408      316
                     -------  -------  -------  -------    -------  -------  -------   -------   -------  -------  -------
Income before
 minority
 interest.........       106      358      339      338        163      565      790       624       773    1,216      945
Minority interest.        14        4        6       (7)        19       17       (8)       89       --       --       --
                     -------  -------  -------  -------    -------  -------  -------   -------   -------  -------  -------
Net income........   $   120  $   362  $   345  $   331    $   182  $   582  $   782   $   713   $   773  $ 1,216  $   945
                     =======  =======  =======  =======    =======  =======  =======   =======   =======  =======  =======
</TABLE>
 
                                      24
<PAGE>
 
  The following table sets forth, as a percentage of revenues, certain
consolidated statements of operations data for the four quarters in each of
the years fiscal 1995 and 1996 and for the first three quarters of fiscal
1997.
 
<TABLE>
<CAPTION>
                                                               QUARTER ENDED
                   -----------------------------------------------------------------------------------------------------
                   SEPT. 30, DEC. 31, MAR. 31, JUNE 30, SEPT. 30, DEC. 31, MAR. 31, JUNE 30, SEPT. 30, DEC. 31, MAR. 31,
                     1994      1994     1995     1995     1995      1995     1996     1996     1996      1996     1997
                   --------- -------- -------- -------- --------- -------- -------- -------- --------- -------- --------
<S>                <C>       <C>      <C>      <C>      <C>       <C>      <C>      <C>      <C>       <C>      <C>
Revenues.........    100.0%   100.0%   100.0%   100.0%    100.0%   100.0%   100.0%   100.0%    100.0%   100.0%   100.0%
Cost of goods
 sold............     77.4     75.8     76.8     73.9      77.0     75.3     72.7     71.7      71.9     71.6     72.8
                     -----    -----    -----    -----     -----    -----    -----    -----     -----    -----    -----
Gross profit.....     22.6     24.2     23.2     26.1      23.0     24.7     27.3     28.3      28.1     28.4     27.2
Operating
 expenses:
 Selling, general
  and
  administrative.     14.6     15.8     14.2     16.4      15.0     14.1     15.8     18.2      16.6     14.5     13.2
 Research and
  development....      4.5      2.4      2.8      3.2       3.3      2.7      2.6      2.3       3.1      3.4      2.8
 Stock option
  compensation...      --       --       --       --        --       --       --       --        --       --       4.1
                     -----    -----    -----    -----     -----    -----    -----    -----     -----    -----    -----
 Total operating
  expenses.......     19.1     18.2     17.0     19.6      18.3     16.8     18.4     20.5      19.7     17.9     20.1
                     -----    -----    -----    -----     -----    -----    -----    -----     -----    -----    -----
Income from
 operations......      3.5      6.0      6.2      6.5       4.7      7.9      8.9      7.8       8.4     10.5      7.1
Interest expense.      2.2      2.1      2.7      2.9       2.7      2.3      2.0      2.0       2.2      1.8      1.0
                     -----    -----    -----    -----     -----    -----    -----    -----     -----    -----    -----
Income before
 income taxes and
 minority
 interest........      1.3      3.9      3.5      3.6       2.0      5.6      6.9      5.8       6.2      8.7      6.1
Provision for
 income taxes....       .4      1.0       .9      1.0        .7      1.9      2.3      2.0       1.6      2.2      1.5
                     -----    -----    -----    -----     -----    -----    -----    -----     -----    -----    -----
Income before
 minority
 interest........      1.0      2.9      2.6      2.6       1.3      3.7      4.6      3.8       4.6      6.5      4.6
Minority
 interest........      0.1      --       --      (0.1)      0.2      --      (0.1)     0.5       --       --       --
                     -----    -----    -----    -----     -----    -----    -----    -----     -----    -----    -----
Net income.......      1.1%     2.9%     2.6%     2.5%      1.5%     3.7%     4.5%     4.3%      4.6%     6.5%     4.6%
                     =====    =====    =====    =====     =====    =====    =====    =====     =====    =====    =====
</TABLE>
 
  The Company's quarterly operating results have varied in the past and are
likely to vary significantly in the future. These quarterly fluctuations are
the result of a number of factors, including the volume and timing of orders
received and shipments made during the period, variations in the Company's
product mix, changes in demand for the Company's products, the timing and
amount of expenditures made by the Company in anticipation of future sales,
variability in selling price, and other competitive conditions. The Company's
revenues, particularly from the sale of security and inspection products, are
increasingly dependent upon larger orders of multiple units and upon the sale
of products having higher average selling prices. The Company is unable to
predict the timing of the receipt of such orders and, as a result, significant
variations between forecasts and actual orders will often occur. Furthermore,
the rescheduling of the shipment of any large order, or portion thereof, or
any production difficulties or delays experienced by the Company, could have a
material adverse effect on the Company's quarterly operating results.
 
LIQUIDITY AND CAPITAL RESOURCES
 
  The Company has financed its operations primarily through cash provided by
operations and through various term loans, discounting facilities, and
revolving credit lines extended to its different subsidiaries worldwide. As of
March 31, 1997, the Company's principal sources of liquidity consisted of $1.6
million in cash and several credit agreements described below.
   
  The Company's operations provided net cash of $5.1 million in the nine month
period ended March 31, 1997. For the nine-month period ended March 31, 1997,
the amount of net cash provided by operations reflects adjustments for
depreciation and amortization, the increase in accrued expenses and the
increase in advances from customers, which is primarily attributable to
advances received on a significant security and inspection product contract
obtained in the nine-month period ended March 31, 1997. Net cash provided by
operations was offset in part by increases in receivables and inventories.
    
  Net cash used in investing activities was $1.7 million and $2.2 million in
the nine-month period ended March 31, 1997 and fiscal 1996, respectively, in
each case due primarily to purchases of property and equipment in the amount
of approximately $1.5 million and $1.6 million, respectively. The Company
expects to spend approximately $2.0 million for purchases of property
 
                                      25
<PAGE>
 
and equipment in fiscal 1998. In addition, the Company may spend approximately
$3.0 million if it exercises its option to purchase its Hawthorne, California,
facilities. The Company has no significant capital spending or purchase
commitments other than normal purchase commitments and commitments under
leases.
 
  Net cash used in financing activities for the nine-month period ended March
31, 1997 was $2.4 million due primarily to the repayment of debt. Net cash
provided by financing activities in fiscal 1996 was $1.4 million due to
increases in borrowings under the Company's lines of credit. The Company
intends to use a portion of the net proceeds of this Offering to repay the
amounts outstanding under the Company's lines of credit.
   
  In January 1997, OSI Systems, Inc. and its three U.S. subsidiaries entered
into a credit agreement with Sanwa Bank California. The agreement provides for
a $10.0 million line of credit, which includes revolving, letter of credit,
acceptance and foreign exchange facilities. In addition, the Company has a
$1.0 million equipment line of credit for capital purchases. At the borrowers'
election, advances under both lines of credit bear interest at a rate equal to
a variable bank reference rate plus 0.25% per annum or, at the Company's
option, at a fixed rate above LIBOR. At the borrowers' election, advances
under the equipment purchase facility bear interest at a variable bank
reference rate plus 0.25% per annum or a fixed rate quoted by the bank. The
agreement also provides for a term loan in a maximum amount of $2.5 million to
refinance existing indebtedness. At the borrowers' election, the term loan may
bear interest at a fixed or variable rate, as quoted by the bank. As of March
31, 1997, there was outstanding approximately $4.9 million under the $10.0
million line of credit, $2.5 million under the term loan, and approximately
$154,000 under the letter of credit facility. As of March 31, 1997, there were
no outstanding borrowings under the equipment line. Borrowings under the
agreement are secured by liens on substantially all of the Company's assets.
The agreement restricts the four borrowers from incurring certain additional
indebtedness and from making capital expenditures greater than $1.8 million in
the U.S. in any fiscal year. In addition, the credit agreement currently
requires that the Company at all times maintain (on a consolidated basis) a
current ratio of not less than 1.2 to 1, a tangible net worth of at least $11
million, a ratio of debt to tangible net worth of not more than 3.0 to 1, and
a ratio of cash, cash equivalents and accounts receivable to current
liabilities of not less than 0.6 to 1. The Company is currently in compliance
with all of these financial conditions.     
   
  In November 1996, OSI Systems, Inc. and its three U.S. subsidiaries entered
into an agreement with Wells Fargo HSBC Trade Bank, N.A. Under the agreement
Wells Fargo will provide the four borrowers with a revolving credit line of up
to a maximum of $5.0 million to be used to pay obligations incurred in
connection with export orders. The revolving credit lines bear interest at the
bank's prime rate plus 0.25% per annum. Although the credit lines are
scheduled to expire on October 27, 1997, the bank has informed the Company
that, unless there is a material adverse change in the financial condition of
the Company, the bank intends to extend the term of the credit lines for one
additional year. As of March 31, 1997, no amounts were outstanding under the
facility. The agreement also provides for a letter of credit sub-facility up
to an aggregate maximum of $4.0 million to be used for standby letters of
credit in support of bid and performance bonds associated with specific
foreign contracts, of which $2.0 million was used as of March 31, 1997. The
facility terminates on October 27, 1997. Borrowings under the agreement are
secured by liens on certain of the Company's assets. The agreement prohibits
the Company from paying any dividends and restricts OSI Systems, Inc. and
these subsidiaries from making capital expenditures greater than $1.8 million
in the U.S. in any fiscal year.     
 
  In December 1996, Midland Bank plc agreed to provide certain banking
facilities to Rapiscan UK under two agreements. Under the first agreement,
Midland agreed to provide Rapiscan UK with a pound sterling overdraft, maximum
amount of 1.2 million pounds sterling (approximately $2.0 million at March 31,
1997) outstanding at any one time, which amounts are secured by certain assets
of Rapiscan UK. Outstanding borrowings will bear interest at a base rate plus
2.00% per annum. The second agreement provides for a 750,000 pound sterling
(approximately $1.2 million as of March 31, 1997) facility for purchase of
accounts receivable at 1.85% over a base rate and a 500,000 pound sterling
(approximately $820,000 as of March 31, 1997) facility for tender and
performance bonds. These facilities are secured by certain assets of Rapiscan
UK
 
                                      26
<PAGE>
 
and OSI Systems, Inc. has guarantied Rapiscan UK's obligations under the
performance bond facility. As of March 31, 1997, no amounts were outstanding
under the line of credit and $134,000 was outstanding under the performance
bond facility. The above facilities expire in December and November 1997,
respectively.
 
  OSI Singapore has a loan agreement with Indian Bank (Singapore), which
provides for an accounts receivable discounting facility for borrowings of up
to 2.6 million Singapore dollars (approximately $1.8 million at March 31,
1997). The agreement also provides for a term loan with borrowings of 434,000
Singapore dollars (approximately $300,000 at March 31, 1997). Borrowings under
the line of credit bear interest at the bank's prime rate plus 1.50%. The line
of credit is terminable at any time. As of March 31, 1997 there was
approximately $1.4 million outstanding under the line of credit and
approximately $66,000 was outstanding under the term loan. Borrowings under
the line of credit are collateralized by certain assets of OSI Singapore. The
borrowings under this line are guarantied by Messrs. Chopra, Mehra and
Hickman, officers of the Company. Borrowings secured by intercompany
receivables are guarantied by OSI Systems, Inc.
 
  AME has a loan agreement with Christiania Bank OG Kreditkasse which provides
for a revolving line of credit for borrowings of up to 5.0 million Norwegian
krone (approximately $741,000 at March 31, 1997), of which $354,000 was
outstanding as of March 31, 1997. Borrowings under the line of credit bear
interest at an annual variable rate of 6.65%. The agreement also provides for
a term loan which matures in June 2001 and bears interest at an annual rate of
5.75%. At March 31, 1997 outstanding term loan borrowings totalled
approximately 3.4 million Norwegian krone (approximately $504,000).
 
  OSI Malaysia has a bank guarantee line of credit for 2.5 million Malaysian
ringgits (approximately $1,000,000) with the Hong Kong Bank Malaysia Berhad
for performance bonds and standby letters of credit. This line expires in
October 1997.
 
  The Company believes that the net proceeds from this offering together with
cash from operations, existing cash and lines of credit will be sufficient to
meet its cash requirements for the foreseeable future.
 
FOREIGN CURRENCY TRANSLATION
 
  The accounts of the Company's operations in Singapore, Malaysia, England and
Norway are maintained in Singapore dollars, Malaysian ringgits, U.K. pounds
sterling and Norwegian krone, respectively. Foreign currency financial
statements are translated into U.S. dollars at current rates, with the
exception of revenues, costs and expenses, which are translated at average
rates during the reporting period. Gains and losses resulting from foreign
currency transactions are included in income, while those resulting from
translation of financial statements are excluded from income and accumulated
as a component of shareholder's equity. Transaction (losses) gains of
approximately ($19,000), $76,000, ($123,000), ($21,000), and $9,000 were
included in income for fiscal 1994, 1995 and 1996 and for the nine-month
period ended March 31, 1996 and 1997.
 
INFLATION
 
  The Company does not believe that inflation has had a material impact on its
results of operations.
 
                                      27
<PAGE>
 
                                   BUSINESS
 
GENERAL
 
  The Company is a vertically integrated worldwide provider of devices,
subsystems and end-products based on optoelectronic technology. The Company
designs and manufactures optoelectronic devices and value-added subsystems for
OEMs for use in a broad range of applications, including security, medical
diagnostics, telecommunications, office automation, aerospace, computer
peripherals and industrial automation. In addition, the Company utilizes its
optoelectronic technology and design capabilities to manufacture security and
inspection products that it markets worldwide to end users under the
"Rapiscan" brand name. These products are used to inspect baggage, cargo and
other objects for weapons, explosives, drugs and other contraband. In the nine
month period ended March 31, 1997, revenues from the sale of optoelectronic
devices and subsystems amounted to $31.7 million, or approximately 56.6%, of
the Company's revenues, while revenues from sales of security and inspection
products amounted to $24.3 million, or approximately 43.4% of the Company's
revenues.
 
INDUSTRY OVERVIEW
 
  The Company's products currently address two principal markets. The
Company's optoelectronic devices and subsystems are designed and manufactured
primarily for sale to OEMs, while the Company's security and inspection
products are sold to end-users.
 
  Optoelectronic Devices and Subsystems. Optoelectronic devices consist of
both active components, such as silicon photodiodes, that sense light of
varying wavelengths and convert the light detected into electronic signals,
and passive components, such as lenses, prisms, filters and mirrors. An
optoelectronic subsystem typically consists of one or more optoelectronic
devices that are combined with other electronic components for integration
into an end-product. Optoelectronic devices and subsystems are used for a wide
variety of applications ranging from simple functions, such as the detection
of paper in the print path of a laser printer, to complex monitoring,
measurement or positioning functions, such as in industrial robotics where the
subsystem is used to detect the exact position, motion or size of another
object. Because optoelectronic devices and subsystems can be used in a wide
variety of measurement, control and monitoring applications, optoelectronics
may be used in a broad array of industrial applications.
 
  The Company believes that in recent years advances in technology and
reductions in the cost of key components of optoelectronic systems, including
computer processing power and memory, have broadened the market by enabling
the use of optoelectronic devices in a greater number of applications. In
addition, the Company believes that there is a trend among OEMs to
increasingly outsource the design and manufacture of optoelectronic subsystems
to fully integrated, independent manufacturers who may have greater
specialization, broader expertise, and the ability and flexibility to respond
in shorter time periods than the OEM could accomplish in-house. The Company
believes that its high level of vertical integration, substantial engineering
resources, expertise in the use and application of optoelectronic technology,
and low-cost international manufacturing operations enable it to effectively
compete in the market for optoelectronic devices and subsystems.
 
  Security and Inspection Products. A variety of products are currently used
worldwide in security and inspection applications. These products include
single energy x-ray equipment, dual energy x-ray equipment, trace detection
systems that detect particulate and chemical traces of explosive materials,
and CT scanners. To date, most of these products have been deployed primarily
at commercial airports worldwide. The Company believes that the growth in the
market for security and inspection products will continue to be driven by the
increased perception of threat fueled by recent terrorist incidents, increased
government mandates and appropriations, and the emergence of a growing market
for the non-security applications of its products.
 
                                      28
<PAGE>
 
  In the 1970s, principally in response to civilian airline hijackings, the
U.S. Federal Aviation Administration ("FAA") established security standards by
setting guidelines for the screening of carry-on baggage for weapons such as
guns and knives. These standards were later mandated by the United Nations for
adoption by all of its member states. The Company believes that to date the
imposition of these standards has resulted in the installation of over 10,000
x-ray inspection systems installed in airports worldwide. Additionally, the
United Kingdom Department of Transport has required the United Kingdom's
commercial airports to deploy systems for 100% screening of international
checked baggage by the end of 1998, and the European Civil Aviation
Conference, an organization of 33 member states, has agreed to implement 100%
screening of international checked baggage by the year 2000. In the United
States, largely in response to the explosion of Pan Am Flight 103 in December
1988, Congress enacted the Aviation Security Improvement Act of 1990 which,
among other initiatives, directed the FAA to establish and implement strict
security measures and to deploy advanced technology for the detection of
various contraband, including explosives, drugs, and currency. In July 1996,
President Clinton formed the White House Commission on Aviation Safety and
Security (the "Gore Commission"), to review airline and airport security and
to oversee aviation safety. In response to the initial report released by the
Gore Commission, the United States enacted legislation that includes $144
million in appropriations for the initial deployment of advanced security and
inspection technology at major U.S. airports.
 
  X-ray inspection equipment, such as that sold by the Company, is also
increasingly being used for a number of purposes not related to security.
Newer versions of x-ray inspection equipment combine x-ray inspection with
computer image enhancement capabilities and can be applied to various non-
security purposes such as the detection of narcotics, gold and currency, the
inspection of agricultural products, and the inspection of cargo by customs
officers and international shippers. The Company believes that the market for
cargo inspection systems will increase significantly in the future.
 
GROWTH STRATEGY
 
  The Company's objectives are to be a leading provider of specialized
optoelectronic products, to enhance its position in the international
inspection and detection marketplace and to leverage its expertise in the
optoelectronic technology industry by entering into new end-product markets on
a selective basis. Key elements of this strategy include:
 
  Leverage its Optoelectronic Design and Manufacturing Expertise to Address
New Applications. The Company believes that one of its primary competitive
strengths is its expertise in designing and manufacturing specialized
optoelectronic subsystems for its OEM customers in a cost-effective manner.
The Company currently designs and manufactures devices and subsystems for over
200 customers serving over 100 applications. The Company has developed this
expertise in the past through internal research and development efforts and
through selective acquisitions. In 1990, the Company acquired UDT Sensors to
broaden its expertise and capabilities in developing and manufacturing
optoelectronic devices and subsystems. Thereafter, in 1992, the Company
acquired Ferson for its passive optic technologies, and AME in 1997 for AME's
hybrid optoelectronic capabilities. The Company intends to continue to build
this expertise in order to address a greater number of applications. By
expanding the number of potential applications its products may serve, the
Company intends to increase its business with existing customers and attract
new customers.
 
  Further Penetrate Existing Security and Inspection Markets and Expand into
Other Markets. For the nine-month period ended March 31, 1997, approximately
28.4% of the Company's security and inspection products were sold to airports
or airlines for security purposes, with the remainder of these products being
sold to other facilities for both security and nonsecurity related purposes.
The Company intends to continue to expand its sales and marketing efforts both
domestically and internationally to capitalize on opportunities in its
existing markets for new installations as well as on opportunities to replace,
service and upgrade existing security installations. In addition, through
research and development and selective acquisitions, the Company intends to
enhance and expand its current product offering to better address new
applications including automatic bomb detection and cargo scanning. The
Company believes that this strategy will enable it to take
 
                                      29
<PAGE>
 
advantage of the growth its existing markets are experiencing and to benefit
from additional growth that these new and enhanced products will provide. The
Company believes that sales of its security and inspection products at
locations other than at airports will constitute an increasingly larger
portion of its sales in the future.
 
  Capitalize on Vertical Integration. The Company believes it offers
significant added value to its OEM customers by providing a full range of
vertically integrated services including component design and customization,
subsystem concept design and application engineering, product prototyping and
development, and efficient pre-production, short-run and high volume
manufacturing. The Company believes that its vertical integration
differentiates it from many of its competitors and provides value to its OEM
customers who can rely on the Company to be an integrated supplier of an
optoelectronic subsystem. In addition, the Company's vertical integration
provides several other advantages in both its optoelectronic devices and
subsystems and security and detection product lines. These advantages include
reduced manufacturing and delivery times, lower costs due to its access to
competitive international labor markets and direct sourcing of raw materials,
and superior quality control. The Company intends to continue to leverage its
vertically integrated services to create greater value for its customers in
the design and manufacturing of its products. The Company believes that this
strategy better positions the Company for penetration into other end markets.
 
  Capitalize on Global Presence. The Company operates in three locations in
the United States, three in Europe and two in Asia. The Company views its
international operations as providing an important strategic advantage over
competitors in both the optoelectronic device and subsystem market and the
security and inspection market for three primary reasons. First, international
manufacturing facilities allow the Company to take advantage of competitive
labor rates in order to be a low cost producer. Second, its international
offices strengthen its sales and marketing efforts and its ability to maintain
and repair its systems by providing direct access to growing foreign markets
and to its existing international customer base. Third, multiple manufacturing
locations allow the Company to reduce delivery times to its global customer
base. In the future, the Company intends to develop new sources of
manufacturing and sales capabilities to maintain and enhance the benefits of
its international presence.
 
  Selectively Enter New End Markets. The Company intends to selectively enter
new end markets that complement its existing capabilities in designing,
developing and manufacturing optoelectronic devices and subsystems. The
Company believes that by manufacturing other end products which rely on the
technological capabilities of the Company, it can leverage its existing
integrated design and manufacturing infrastructure to capture greater margins
and build a significant presence in new end markets which present attractive
competitive market dynamics. The Company intends to achieve this strategy
through internal growth or through selective acquisitions of end-product
manufacturers.
 
PRODUCTS AND TECHNOLOGY
 
  The Company designs, develops, manufactures and sells products based on its
core optoelectronic technology. These products range from discrete devices to
value-added subsystems to complete x-ray security and inspection products.
 
  Discrete Devices and Subsystems. Optoelectronic devices generally consist of
both active and passive components. Active components sense light of varying
wavelengths and convert the light detected into electronic signals, whereas
passive components amplify, separate or reflect light. Active components
manufactured by the Company consist of silicon photodiodes and hybrid
photodetectors. Passive components include lenses, prisms, filters, mirrors
and other precision optical products that are used by the Company in the
manufacture of its optoelectronic products or are sold to others for use in
telescopes, laser printers, copiers, microscopes and other detection and
vision equipment. The devices manufactured by the Company are both standard
products and products customized for specific applications. Most of the
devices manufactured by the Company are incorporated by it into the subsystems
that it manufactures. The Company
 
                                      30
<PAGE>
 
does, however, also sell its discrete devices separately to OEMs. Direct sales
of devices to third parties constituted less than 10.0% of the Company's
revenues in the nine-month period ended March 31, 1997.
 
  In addition to the manufacture of discrete devices, the Company also
specializes in designing and manufacturing customized optoelectronic
subsystems for use in a wide range of products and equipment. An
optoelectronic subsystem typically consists of one or more optoelectronic
devices that are combined with other electronic components and packaging for
use in an end-product. The composition of a subsystem can range from a simple
assembly of various optoelectronic devices that are incorporated into other
subsystems (for example, a printed circuit board containing the Company's
optoelectronic devices), to complete end-products (for example, medical pulse
oximeter probes that are manufactured and packaged by the Company on behalf of
the OEM customer and then shipped directly to the customer or the customer's
distributors). Since the end of fiscal 1996, the Company has manufactured
subsystems for a variety of applications, including the following: imaging
electronics for medical CT scanners; disposable and reusable medical probes
for use with medical pulse oximetry equipment; components and subsystems for
laser gyroscopes used in military and commercial aviation; optoelectronic
subsystems for slot machines; laser subsystems in military helicopter gun
sighting equipment; positioning subassemblies for computer peripheral
equipment; alignment subsystems for laser heads in optical disc players; and
ultra-violet fire detection subsystems for submarines and surface ships.
 
  Security and Inspection Equipment. The Company manufactures and sells a
range of security and inspection equipment that it markets under the
"Rapiscan" brand name. To date, the security and inspection equipment has
principally been used at airports to inspect carry-on and checked baggage for
guns and knives. However, inspection products are increasingly being used for
both security purposes at a wide range of facilities other than airports and
for other non-security purposes. For fiscal years 1995 and 1996, approximately
28.7% and 33.1%, respectively, of the Company's security and inspection
revenues were derived from the sale of inspection products to airlines and
airports, and the balance of such revenues were derived from all other sales.
The Company believes that sales of its inspection products for use at non-
airport locations will constitute an increasingly larger portion of future
revenues.
 
  The Company's inspection and detection products combine the use of x-ray
technology with the Company's core optoelectronic capabilities. The base
models of its product line use single energy x-ray technology and are used for
identifying weapons with distinct shapes, such as guns and knives. The
Company's enhanced models combine dual- or multi-energy x-ray technology with
computer enhanced imaging technology to facilitate the detection of materials
such as explosives, narcotics, currency or other contraband. While all x-ray
systems produce a two-dimensional image of the contents of the inspected
material, the dual-energy x-ray systems also measure the x-ray absorption of
the inspected materials' contents at two x-ray energies to determine the
atomic number, mass and other characteristics of the object's contents. The
different organic and non-organic substances in the inspected material are
displayed in various colors. This information is then displayed to an operator
of the inspection equipment who can identify and differentiate the objects in
the inspected materials.
 
  Currently, all of the Company's inspection products require an operator to
monitor the images produced by the inspection equipment. Depending on the
model, the Company's products permit the operator to inspect the contents of
packages at varying image modes and magnifications. The images range from the
monochrome and pseudo-color images produced by single x-ray imaging systems,
to high resolution, multi-color images in the Company's computer enhanced
dual-energy models. The Company believes that its Rapiscan 500 Series provides
one of the highest quality images currently available in the x-ray security
and inspection industry.
 
  In order to monitor the performance of operators of the x-ray baggage
screening systems that are used in the United States airports, the FAA has
implemented a computer-based training and evaluation program known as the
Screener Proficiency Evaluation And Reporting System ("SPEARS"). The Company's
Rapiscan 500 Series EPX System is, to date, the only system that meets the
FAA's SPEARS criteria. In order to test the proficiency and attentiveness of
the operator, the Company's system is able to insert test threat images, such
as weapons, into an actual parcel stream by use of computer images.
 
                                      31
<PAGE>
 
The following table sets forth certain information related to the standard
security and inspection products currently offered by the Company. The Company
does, however, also customize its standard products to suit specific
applications and customer requirements:
 
<TABLE>
<CAPTION>
        MODEL (TECHNOLOGY)              APPLICATIONS                SELECTED INSTALLATIONS
- -------------------------------------------------------------------------------
  <S>                        <C>                                <C>
  Rapiscan 19 (single en-    Inspection of incoming package     Embassies
   ergy)
  Rapiscan 119 (single en-                                      Post offices
   ergy)
                                                                Courthouses
                                                                High risk office buildings
                                                                Manufacturing companies
- -------------------------------------------------------------------------------
  Rapiscan 300 Series (160   Inspection of hand carried baggage Airports
  kV x-ray  source,                                             Prisons
  single energy and                                             Government buildings
   dual energy)                                                 Nuclear facilities
- -------------------------------------------------------------------------------
  Rapiscan 500 Series-       Airport hand carried and checked   Airports
  Standard                    baggage                           Cruise ships
   Tunnel (single view and   Pallet inspection                  Freight shippers
  dual                       Customs inspections                Border crossings
   view 160 kV x-ray         Agriculture inspection
  source, single
   energy and dual energy)
- -------------------------------------------------------------------------------
  Rapiscan 500 Series-       Large pallet inspection            Airports
  Large Tunnel               Customs inspections                Freight shippers
   (single view and dual                                        Border crossings
  view                                                          High risk seaport locations
   320-450 kV x-ray
  source)
- -------------------------------------------------------------------------------
  Rapiscan 500 Series-Mo-    Mobile x-ray inspection            Conventions and special events
  bile                                                          Airports
   Systems (x-ray van or                                        Customs inspections
  trailer)                                                      Border crossing
</TABLE>
 
  In addition to its x-ray security and inspection products, the Company also
markets three models of an archway walk-through metal detector and two models
of a hand-held metal detector. These products are used to detect metal weapons
such as guns and knives and are installed at airports and other locations,
including prisons and schools. During the nine-month period ended March 31,
1997, sales of the walk-through and hand-held metal detectors constituted 1.8%
of the Company's revenues.
 
  The Company's Rapiscan U.S.A. subsidiary has entered into a non-exclusive
patent license agreement with EG&G Inc. Under the license, Rapiscan U.S.A. is
permitted to make, use and sell or otherwise dispose of security and
inspection products that use an x-ray line scan system for baggage inspection
purposes covered by EG&G Inc.'s patent. The patent, which expires in 2000,
does not affect sales of the Company's security and inspection products
manufactured and sold outside of the United States.
 
                                      32
<PAGE>
 
MARKETS, CUSTOMERS AND APPLICATIONS
 
  Optoelectronic Devices and Subsystems. The Company's optoelectronic devices
and subsystems are used in a broad range of products by a variety of
customers. The following chart illustrates, for the twelve-month period ended
March 31, 1997: (i) the major product categories for which the Company
provided optoelectronic products; (ii) the percentage of revenues from the
sale of optoelectronic devices and subsystems related to such categories;
(iii) certain customers ("Major Customers") in each such category who
purchased more than $100,000 of optoelectronic products; and (iv) the total
number of Major Customers in each such category. The Company expects that the
list of product categories, the amount of business derived from each such
product category, and the composition of its major customers will vary from
period to period.
 
<TABLE>
<CAPTION>
                          PERCENTAGE OF      REPRESENTATIVE
                          OPTOELECTRONIC          MAJOR          APPROXIMATE NUMBER
    PRODUCT CATEGORY          SALES             CUSTOMERS        OF MAJOR CUSTOMERS
    ----------------      -------------- ----------------------- ------------------
<S>                       <C>            <C>                     <C>
Computed Tomography and
 X-Ray Imaging                 22.7%     Picker International             7
                                         Hologic, Inc.
                                         InVision Technologies
Aerospace and Avionics         12.0%     Kearfott Guidance                9
                                         Honeywell Avionics
                                         Litton Systems
Medical Monitoring              9.5%     Datascope                       11
                                         BioChem International
                                         Criticare Systems
Analytical and Medical
 Diagnostics Equipment          6.7%     Johnson & Johnson               10
                                         Leica
                                         Bausch & Lomb
Office Automation and
 Computer Peripherals           6.3%     Xerox                            6
                                         Eastman Kodak
                                         Hewlett-Packard
Construction, Robotics
 and Industrial
 Automation                     4.9%     3M                               8
                                         Spectra Physics
                                         Baumer Electric
Military/Defense and
 Weapons Simulations            3.3%     Lockheed Martin (Loral)          5
                                         Hughes (HDOS)
                                         Texas Instruments
Colorometry and Particle
 Analyzers                      1.2%     Coulter Electronics              3
                                         CILAS
                                         Accuracy Microsensors
Bar Code Scanners               1.1%     Symbol Technologies              2
                                         Intermec
Gaming Industry                 1.1%     Bally Gaming                     2
                                         Dixie Narco
</TABLE>
 
                                      33
<PAGE>
 
  Security and Inspection Products. Since entering the security and inspection
products market in 1993, the Company has shipped over 2,000 units to over 50
countries. The Company has sold 10 or more of its security and inspection
products, or more than $100,000 of such products, in at least 26 countries.
The following is a list of certain customers and/or installations that have
purchased at least 10 units, or more than $100,000, of the Company's security
and inspection products since January 1993:
 
<TABLE>
  <S>                                             <C>
  Nanjing Airport; People's Republic of
   China                                          Ukraine Airports; Ukraine
  Prague Airport; Czech Republic                  United Kingdom Prison System; United Kingdom
  Gatwick Airport; England                        American Airlines; U.S.A
  Heathrow Airport; England                       Continental Airlines; U.S.A
  TNT Freight; England                            Delta Airlines; U.S.A.
  Finnish Customs; Finland                        Federal Courthouses; U.S.A.
  Malaysian Airport Board; Malaysia               Federal Reserve Bank; U.S.A.
  New Zealand Customs; New Zealand                JFK International Terminal; U.S.A.
  Pakistan Airports; Pakistan                     Los Angeles County Courthouse; U.S.A.
  Doha International Airport; Qatar               Miami Airport; U.S.A.
  HAJ Terminal; Saudi Arabia                      Orlando Airport; U.S.A.
  Spanish Radio/Television; Spain                 USAir; U.S.A.
  Sri Lanka Government; Sri Lanka                 Japanese Embassies; Worldwide
  Dubai Airport; U.A.E.
</TABLE>
 
  Because the market for most security and inspection products developed in
response to civilian airline hijackings, historically a large portion of the
Company's security and inspection products were sold for use at airports.
Recently, however, the Company's security and inspection products have been
used for security purposes at locations other than airports, such as
courthouses, government buildings, mail rooms, schools, prisons and at unique
locations such as Buckingham Palace, England. In addition, the Company's
security and inspections products are increasingly being used for non-security
purposes, such as for cargo inspection to detect narcotics and contraband,
prevention of pilferage at semiconductor manufacturing facilities, quality
assurance for agricultural products, and the detection of gold and currency.
 
                                      34
<PAGE>
 
MARKETING, SALES AND SERVICE
 
  The Company markets and sells its optoelectronic devices and subsystems
worldwide through both a direct sales and marketing staff of 23 employees and
indirectly through a network of approximately 25 independent sales
representatives and distributors. Most of the in-house sales staff is based in
the United States while most of the independent sales representatives and
distributors are located abroad. Since the acquisition of AME in March 1997,
the Company's marketing efforts in Europe have been conducted through AME's
sales and marketing staff and through a network of approximately four
independent sales representatives. The Company markets and sells its security
and inspection products worldwide through a direct sales and marketing staff
of approximately 21 employees located in the United States, the United
Kingdom, Dubai, and Malaysia and through a network of over 70 independent
sales representatives. Following this Offering, the Company intends to expand
its direct sales force.
 
  The Company's optoelectronic products sales staff located in the United
States and Norway is supported by an applications engineering group whose
members are available to provide technical support. This support includes
designing applications, providing custom tooling and process integration,
defining solutions for customers and developing products that meet customer
defined specifications. The security and inspection products sales staff is
supported by a service organization of approximately 25 persons located
primarily in the United States, the United Kingdom and Malaysia. The Company
also supports these sales and customer relations efforts by providing operator
training, computerized training and testing equipment, in-country service,
software upgrades, service training for customer technicians and a newsletter
on security issues.
 
  The Company considers its maintenance service operations to be an important
element of its business. After the expiration of the standard one-year product
warranty period, the Company is often engaged by its customers to provide
maintenance services for its security and inspection products through annual
maintenance contracts. The Company believes that its international maintenance
service capabilities give it a competitive advantage in selling its security
and inspection products. Furthermore, the Company believes that as its
installed base of security and inspection products increases, revenues
generated from such annual maintenance service contracts and from the sale of
replacement parts will increase. In fiscal 1996, and for the nine-month period
ended March 31, 1997, maintenance service revenues and replacement part sales
collectively represented 3.3% and 3.1%, respectively, of the Company's
revenues.
 
RESEARCH AND DEVELOPMENT
 
  The Company's components and optoelectronic subsystems are designed and
engineered at the Company's offices in either Hawthorne, California, or
Horten, Norway. The subsystems that the Company manufactures are engineered by
the Company to solve specific application needs of its OEM customers. The
Company's customers typically request that the Company design custom
optoelectronic solutions for their specific needs when standard components or
subsystems are not available from other manufacturers of optoelectronic
devices. After an end-product has been conceptualized by the OEM, the Company
normally will involve its engineers to design the application, to establish
the mechanical specifications for the application, to create the appropriate
subsystem architecture for the application, and to design the development,
production, and assembly process for the manufacture of the ultimate
subsystem. However, because the Company has the engineering, tooling and
manufacturing capabilities to design and manufacture entire subsystems, and
not just a specific component, the Company typically also designs,
manufactures and assembles the entire subsystem for the customer. Because the
Company's engineers are able to provide additional value and services to its
customers through the entire production process from concept to completion,
the Company considers its engineering personnel to be an important extension
of its core sales and marketing effort.
 
  In addition to close collaboration with the Company's customers in the
design and development of optoelectronics-based products, the Company
maintains an active program for the development and introduction of new
products and enhancements and improvements to its existing products, including
the
 
                                      35
<PAGE>
 
implementation of new applications of its technology. The Company seeks to
further develop its research and development program and considers such
program to be an important element of its business and operations. As of March
31, 1997, in addition to the engineers that the Company employed in
manufacturing, process design and applications development, the Company
engaged approximately 32 full-time engineers and technicians in research and
development. During the fiscal 1994, 1995, 1996 and nine-month period ended
March 31, 1997, the Company's research and development expenses were
approximately $1.5 million, $1.6 million, $1.7 million and $1.7 million,
respectively. In order to fulfill its strategy of increasing its security and
inspection product lines and of enhancing the capabilities of its existing
products, the Company intends to increase its research and development efforts
in the future.
 
MANUFACTURING AND MATERIALS MANAGEMENT
 
  The Company currently has manufacturing facilities in the United Kingdom,
Malaysia and Norway in addition to its manufacturing facilities in Hawthorne,
California, Long Beach, California, and Ocean Springs, Mississippi. The
Company's principal manufacturing facility is in Hawthorne, California.
However, most of the Company's high volume, labor intensive manufacturing and
assembly is generally performed at its facilities in Malaysia. Since most of
the Company's customers currently are located in Europe, Asia and the United
States, the Company's ability to assemble its products in these markets and
provide follow-on service from offices located in these regions is an
important component of the Company's global strategy.
 
  The Company seeks to focus its subsystem manufacturing resources on its core
competencies that enable it to provide value-added enhancements and
distinctive value. The Company believes that its manufacturing organization
has expertise in optoelectronic, electrical and mechanical manufacturing and
assembly of products for commercial applications and for high reliability
applications. High reliability devices and subsystems are those which are
designed, manufactured, screened and qualified to function under exceptionally
severe levels of environmental stress. See "Legal Proceedings." The
manufacturing techniques include silicon wafer processing and fabrication,
manufacture and assembly of photodiodes, SMT (surface mounting) and manual
thru-hole assembly, thick-film ceramic processing, wire bonding, molding,
assembly of components, testing, and packaging. The Company also has the
ability to manufacture plastic parts and certain other parts that are either
not available from third party suppliers or that can be more efficiently or
cost-effectively manufactured in-house. The Company outsources certain
manufacturing operations including its sheet metal fabrication. The
manufacturing process for components and subsystems consists of manual tasks
performed by skilled and semi-skilled workers as well as automated tasks. The
number of subsystems that the Company manufacturers depends on the customers'
needs and may range from a few subsystems (such as an optoelectronic sun
sensor for use in a satellite) to many thousands (sensors used in laser
printers and bar code readers).
 
  The principal raw materials and subcomponents used in producing the
Company's optoelectronic devices and subsystems consist of silicon wafers,
ceramics, electronic subcomponents, light emitting diodes, phototransistors,
printed circuit boards, headers and caps, housings, cables, filters and
packaging materials. For cost, quality control and efficiency reasons, the
Company generally purchases raw materials and subcomponents only from single
vendors with whom the Company has on-going relationships. The Company does,
however, qualify second sources for all of its raw materials and
subcomponents, or has identified alternate sources of supply. The Company
purchases the materials pursuant to purchase orders placed from time to time
in the ordinary course of business with procurement commitment terms ranging
from three months to one year at fixed costs but has no guaranteed long-term
supply arrangements with such suppliers. The silicon-based optoelectronic
devices manufactured by the Company are critical components in most of its
subsystems. Since 1987, the Company has purchased substantially all of the
silicon wafers it uses to manufacture its optoelectronics devices from Wacker
Siltronic Corp. Although to date the Company has not experienced any
significant shortages or material delays in obtaining any of its raw materials
or subcomponents, there can be no assurance that the Company will not face
such shortages or delays in one or more of these materials in the future. See
"Risk Factors--Availability of Raw Materials and Components."
 
 
                                      36
<PAGE>
 
  Substantially all of the optoelectronic subsystems, circuit boards and x-ray
generators used in the Company's inspection and detection systems are
manufactured in-house. The metal shells of the x-ray inspection systems, and
certain standard mechanical parts are purchased from various third-party
unaffiliated providers.
 
ENVIRONMENTAL REGULATIONS
 
  The Company is subject to various federal, state and local environmental
laws, ordinances and regulations relating to the use, storage, handling, and
disposal of certain hazardous substances and wastes used or generated in the
manufacturing and assembly of the Company's products. Under such laws, the
Company may become liable for the costs of removal or remediation of certain
hazardous substances that have been or are being released on or in its
facilities or that have been or are being disposed of off site as wastes. Such
laws may impose liability without regard to whether the Company knew of, or
caused, the release of such hazardous substances. In the past, the Company has
conducted a Phase I environmental assessment report for each of the properties
in the United States at which it currently manufactures products. The purpose
of each such report was to identify, as of the date of that report, potential
sources of contamination of the property. In certain cases, the Company has
received a Phase II environmental assessment report consisting of further soil
testing and other investigations deemed appropriate by an independent
environmental consultant. The Company believes that it is currently in
compliance with all material environmental regulations in connection with its
manufacturing operations, and that it has obtained all environmental permits
necessary to conduct its business. The amount of hazardous substances and
wastes produced and generated by the Company may increase in the future
depending on changes in the Company's operations. Any failure by the Company
to comply with present or future regulations could subject the Company to the
imposition of substantial fines, suspension of production, alteration of
manufacturing process or cessation of operations, any of which could have a
material adverse effect on the Company's business, financial condition and
results of operations. For a discussion of the risks imposed upon the
Company's business by environmental regulations, see "Risk Factors--
Environmental Regulation."
 
COMPETITION
 
  The markets in which the Company operates are highly competitive and are
characterized by evolving customers needs and rapid technological change. The
Company competes with a number of other manufacturers, many of which have
significantly greater financial, technical and marketing resources than the
Company. In addition, these competitors may have the ability to respond more
quickly to new or emerging technologies, may adapt more quickly to changes in
customer requirements, may have stronger customer relationships, may have
greater name recognition, and may devote greater resources to the development,
promotion and sale of their products than the Company. There can be no
assurance that the Company will be able to compete successfully against any
current or future competitors in either the optoelectronic devices and
subsystem markets or the security and inspection markets or that future
competitive pressures will not materially and adversely affect its business,
financial conditions and results of operations.
 
  In the optoelectronic device and subsystem market, competition is based
primarily on such factors as expertise in the design and development of
optoelectronic devices, product quality, timeliness of delivery, price,
customer technical support, and on the ability to provide fully integrated
services from application development and design through volume subsystem
production. The Company believes that its major competitors in the
optoelectronic device and subsystem market are EG&G Electro-Optics, a division
of EG&G, Inc., Optek Technology Inc., Hamamatsu Corporation, and Honeywell
Optoelectronics, a division of Honeywell, Inc. Because the Company specializes
in custom subsystems requiring a high degree of engineering expertise, the
Company believes that it generally does not compete to any significant degree
with any other large United States, European or Far Eastern manufacturers of
standard optoelectronic components.
 
 
                                      37
<PAGE>
 
  In the security and inspection market, competition is based primarily on
such factors as product performance, functionality and quality, the over-all
cost effectiveness of the system, prior customer relationships, technological
capabilities of the products, price, local market presence, and breadth of
sales and service organization. The Company believes that its principal
competitors in the market for security and inspection products are EG&G
Astrophysics, a division of EG&G, Inc., Heimann Systems GmbH, InVision
Technologies, Inc., Vivid Technologies, American Science and Engineering,
Inc., Barringer Technologies Inc., Control Screening L.L.C., and Thermedics
Detection, Inc. Competition could result in price reductions, reduced margins,
and loss of market share by the Company. In the airline and airport security
and inspection market, particularly in the upgrade and replacement market, the
Company also competes for potential customers based on existing relationships
between its competitors and the customers. Certain of the Company's
competitors have been manufacturing inspection systems since the 1980's and
have established strong relationships with airlines and airport authorities.
The Company believes that the image quality and resolution of certain of its
security and inspection products is superior to the image quality offered by
most of its competitors' x-ray based inspection products. Although the Company
also has established relationships with a number of airport and airline
customers, no assurance can be given that the Company will be able to
successfully compete in the future with existing competitors or with new
entrants.
 
BACKLOG
 
  The Company measures its backlog as orders for which purchase orders or
contracts have been signed, but which have not yet been shipped and for which
revenues have not yet been recognized. The Company typically ships its
optoelectronics devices and subsystems as well as its security and inspection
products within one to three months after receiving an order. However, such
shipments may be delayed for a variety of reasons including any special design
or engineering requirements of the customer. In addition, large orders (more
than 10 machines) of security and inspection products typically require more
lead time. Large cargo scanning machines require six to twelve months lead
time.
 
  At March 31, 1997, the Company's backlog products totalled approximately
$57.7 million, compared to approximately $27.5 million at March 31, 1996.
Substantially all of the Company's backlog as of March 31, 1997 is expected to
be shipped during the fiscal year ending June 30, 1998. Any failure of the
Company to meet an agreed upon schedule could lead to the cancellation of the
related order. Variations in the size of the order, the product mix, and
delivery requirements of the customer order may result in substantial
fluctuations in backlog from period to period. Backlog as of any particular
date should not be relied upon as indicative of the Company's revenues for any
future period and cannot be considered a meaningful indicator of the Company's
performance on an annual or quarterly basis.
 
EMPLOYEES
 
  As of March 31, 1997, the Company employed approximately 730 people, of whom
570 were employed in manufacturing, 32 in research and development, 62 in
finance and administration, 44 in sales and marketing, and 25 in its service
organization. Of the total employees, approximately 470 were employed in the
United States, 100 were employed in Europe, 160 were employed in Asia, and one
employee was employed in the Middle East. Nine employees at AME are members of
a union and have collective bargaining rights. Other than the employees of
AME, none of the Company's other employees are unionized. There has never been
a work stoppage or strike at the Company, and management believes that its
relations with its employees are good.
 
                                      38
<PAGE>
 
FACILITIES
 
  The Company currently leases all of its facilities with remaining lease
terms ranging from one to 14 years as reflected in the following table:
 
<TABLE>
<CAPTION>
                                                                     APPROXIMATE
                                                                       SQUARE      LEASE
LOCATION                           DESCRIPTION OF FACILITY             FOOTAGE   EXPIRATION
- --------                           -----------------------           ----------- ----------
<S>                                <C>                               <C>         <C>
  Hawthorne, California            Executive offices, manufacturing,   61,700       2005
                                   engineering, sales and marketing
  Long Beach, California           Manufacturing, engineering, sales   26,200       1998
                                   and marketing and service
  Ocean Springs, Mississippi       Manufacturing, engineering and      41,800       2001
                                   sales and marketing
  Johor Bahru, Malaysia            Manufacturing and sales             13,500       1997
  Johor Bahru, Malaysia            Manufacturing                       10,500       1998
  Horten, Norway                   Manufacturing, engineering,         18,200       1999
                                   marketing and sales
  Singapore, Republic of
   Singapore                       Administrative and materials         3,000       2000
                                   procurement
  Crawley, United Kingdom          Manufacturing, engineering, sales   11,900       2011
                                   and marketing
  Hayes, United Kingdom            Service                              3,900       2003
</TABLE>
 
  The Company believes its facilities are in good condition and are adequate
to support its operations for the foreseeable future.
 
  The Company has an option to purchase the Hawthorne, California, facility
for a base price of approximately $3.0 million. The option is exercisable by
the Company upon prior written notice of six months to the landlord at any
time during the term of the lease. After October 1999, the option purchase
price will be increased each year by the percentage increase in the Consumer
Price Index as calculated by the United States Department of Labor for urban
consumers in the Los Angeles area. In addition to the option to purchase, the
Company also has a right of first refusal to purchase the Hawthorne facility
in the event that the landlord entertains a third party offer to buy the
facility.
 
LEGAL PROCEEDINGS
   
  On January 21, 1997, Rapiscan U.S.A. filed a complaint in the U.S. District
Court for the Central District of California against Lunar in response to
claims by Lunar that certain security inspection products produced by Rapiscan
U.S.A. infringe the '688 patent, which patent is owned by UAB and licensed
exclusively to Lunar. The complaint seeks a declaratory judgment that the
products produced by Rapiscan U.S.A. do not infringe the '688 patent, that the
'688 patent is invalid, and that the patent may not be enforced against
Rapiscan U.S.A. for a number of equitable and legal reasons. The complaint
also asserts related nonpatent claims including fraud and the breach of an
oral agreement whereby Lunar would compensate Rapiscan U.S.A. for assisting
Lunar in its enforcement of the '688 patent and seeks compensatory and
punitive damages for these claims.     
   
  On January 23, 1997, Lunar and UAB, filed suit against OSI Systems, Inc.,
Rapiscan U.S.A. and UDT Sensors in the U.S. District Court for the Western
District of Wisconsin. Lunar and UAB asserted patent infringement,
contributory infringement and inducement thereof. Lunar and UAB seek damages
in an     
 
                                      39
<PAGE>
 
   
unspecified amount and an injunction preventing OSI Systems, Inc., Rapiscan
U.S.A. and UDT Sensors from further making, using, selling and offering for
sale products including the dual energy detector allegedly covered by the '688
patent. The Wisconsin lawsuit has been transferred to the U.S. District Court
for the Central District of California.     
   
  OSI Systems, Inc., Rapiscan U.S.A. and UDT Sensors moved for partial summary
judgment on the scope of claims 38 and 39 of the '688 patent, which are
presently the only claims being asserted by Lunar and UAB. In July 1997, the
court granted the motion for partial summary judgment and ordered that (1)
claim 38 is construed to require that the scintillator material of the first
detector element is a different material than the scintillator material of the
second element, (2) claim 38 is construed to require the use of an area beam,
and (3) claim 39 is construed to require that the phosphor material and
primary radiation absorber in the first detector element are different
materials than the phosphor material and primary radiation absorber in the
second detector element. The issue of whether claims 38 and 39, as now
construed, can cover the Company's specific products was not before the court.
However, because the Company's products use only the same scintillator
materials and use only fan beams, the Company believes that the likelihood of
Lunar and UAB prevailing in its patent infringement lawsuit against the
Company is remote. The Company intends to continue its defense against Lunar's
and UAB's claims and to vigorously pursue its claims against Lunar.     
       
       
  Rapiscan U.S.A. is also involved in a dispute with Quantum Magnetics, Inc.
("Quantum"), EG&G Astrophysics, and EG&G Inc., which is EG&G Astrophysics'
parent company. The dispute relates to Rapiscan U.S.A.'s July 5, 1996
agreement with Quantum to collaborate in the production and marketing of
airport security and inspection scanners (the "July 5 Agreement"). On July 25,
1996, Quantum informed Rapiscan U.S.A. that Quantum was terminating the July 5
Agreement, although Rapiscan U.S.A. contends that this action constituted a
breach of the July 5 Agreement.
 
  On August 5, 1996, EG&G Astrophysics filed suit against Rapiscan U.S.A. in
the Superior Court of the State of California, County of Los Angeles. EG&G
Astrophysics claims that by entering into the July 5 Agreement, Rapiscan
U.S.A. interfered with EG&G Astrophysics' own pre-existing contractual right
to market scanners with Quantum. EG&G Astrophysics also asserts that Rapiscan
U.S.A. falsely represented that Rapiscan U.S.A.'s security and inspection
scanners were just as effective as EG&G Astrophysics' scanners, and that
replacing EG&G Astrophysics' scanners with Rapiscan U.S.A.'s security and
inspection scanners would be cost efficient. EG&G Astrophysics' First Amended
Complaint contains six causes of action: intentional inducement of breach of
contract, intentional interference with contract, intentional interference
with economic relations, negligent interference with economic relations,
slander per se, and trade libel. EG&G Astrophysics seeks compensatory damages
of an indeterminate amount, as well as punitive damages and attorneys' fees.
On December 14, 1996, the Court dismissed EG&G Astrophysics' slander per se
and trade libel claims, without leave to amend. The Company believes that the
remaining claims of EG&G Astrophysics are without merit and has received an
opinion from its litigation counsel that the Company will be able to defend
the lawsuit without any liability to Rapiscan U.S.A.
 
  Rapiscan U.S.A. has filed a cross-complaint against Quantum, EG&G
Astrophysics, and EG&G, Inc. Rapiscan U.S.A.'s First Amended Cross-Complaint
asserts four causes of action against Quantum: breach of written contract,
intentional misrepresentation, negligent misrepresentation and indemnity.
Rapiscan U.S.A. alleges that Quantum made a series of misrepresentations in
connection with the July 5 Agreement and that it failed to honor that
agreement.
 
  With respect to EG&G Astrophysics and EG&G, Inc., Rapiscan U.S.A. seeks
recovery for intentional interference with contractual relations, intentional
interference with prospective economic advantage, slander per se, trade libel,
and breach of written agreement. Rapiscan U.S.A. alleges that EG&G
Astrophysics and EG&G, Inc. interfered with Rapiscan U.S.A.'s relationship
with Quantum and made false representations concerning Rapiscan U.S.A.'s
solvency and its ability to fulfill its obligations. In addition, Rapiscan
U.S.A. asserts that EG&G, Inc. breached an agreement not to disclose
information pertaining to the prior resolution of a patent dispute between
Rapiscan U.S.A. and EG&G, Inc.
 
                                      40
<PAGE>
 
   
  In October 1994, UDT Sensors, one of the Company's subsidiaries, entered
into a Consent Judgment and a Criminal Plea and Sentencing Agreement
(collectively, the "Consent Agreements") with the United States of America.
The charges contained in the Consent Agreements relate to high-reliability
optoelectronic subsystems that UDT Sensors manufactured for use in military
aircraft, attack helicopters and submarines. In the Consent Agreements, UDT
Sensors agreed that it had not tested 100% of these products as required by
the applicable military specifications. Under the terms of the Consent
Agreements, UDT Sensors agreed to pay a total of $1.5 million, plus interest,
in five annual installments ending on March 31, 1999. UDT Sensors was placed
on probation for the five-year period ending March 31, 2000 with respect to
sales of optoelectronic subsystems for use by the U.S. Department of Defense.
Probation does not, however, prohibit UDT Sensors from selling optoelectronic
products to the United States, and UDT Sensors has, since the date of the
Consent Agreements, continued to manufacture and sell the same optoelectronic
products for use in military aircraft, attack helicopters and submarines. In
addition, in order to ensure that UDT Sensors complies with all Federal
procurement laws, UDT Sensors agreed to implement programs and practices to
establish and monitor complying contracting procedures, and agreed to file
periodic reports evidencing such practices and programs.     
 
                                      41
<PAGE>
 
                                  MANAGEMENT
 
EXECUTIVE OFFICERS AND DIRECTORS
 
  The following sets forth certain information regarding the Company's
executive officers and directors:
 
<TABLE>
<CAPTION>
           NAME          AGE                            POSITION
           ----          ---                            --------
<S>                      <C> <C>
  Deepak Chopra......... 46  Chairman of the Board, Chief Executive Officer and President
  Ajay Mehra............ 34  Vice President, Chief Financial Officer, Secretary and Director
  Andreas F. Kotowski... 42  President of U.S. Operations, Rapiscan U.S.A.
  Manoocher Mansouri
   Aliabadi............. 41  Vice President - Corporate Marketing, UDT Sensors
  Anthony S. Crane...... 43  Managing Director, Rapiscan UK
  Thomas K. Hickman..... 55  Managing Director, OSI Singapore and OSI Malaysia
  Steven C. Good(1)..... 54  Director
  Meyer Luskin(1)....... 71  Director
  Madan G. Syal(1)...... 70  Director
</TABLE>
- ---------------------
(1) Member of Audit Committee and Compensation Committee
 
  Deepak Chopra is the founder of the Company and has served as President,
Chief Executive Officer and Director since the Company's inception in May
1987. He has served as the Company's Chairman of the Board since February
1992. Mr. Chopra also serves as the President and Chief Executive Officer of
the Company's major subsidiaries, including UDT Sensors, Rapiscan U.S.A.,
Rapiscan UK, OSI Singapore and Ferson Optics, Inc. From 1976 to 1979 and from
1980 to 1987, Mr. Chopra held various positions with ILC Technology, Inc.
("ILC"), a publicly-held manufacturer of lighting products, including serving
as Chairman of the Board, Chief Executive Officer, President and Chief
Operating Officer of its United Detector Technology Division. In 1990, the
Company acquired certain assets of ILC's United Detector Technology Division.
Mr. Chopra has held various positions with Intel Corporation, TRW
Semiconductors and RCA Semiconductors. Mr. Chopra holds a B.S. in Electronics
and a M.S. in Semiconductor Electronics. Messrs. Ajay Mehra and Madan G. Syal
are the first cousin and father-in-law, respectively, of Mr. Chopra.
 
  Ajay Mehra joined the Company as Controller in 1989, has served as Vice
President and Chief Financial Officer since November 1992, and became
Secretary and a Director in March 1996. Mr. Mehra also serves as Vice
President and Chief Financial Officer of the Company's major subsidiaries
including UDT Sensors, Rapiscan U.S.A., Rapiscan UK, OSI Singapore, and Ferson
Optics, Inc. Prior to joining the Company, Mr. Mehra held various financial
positions with Thermador/Waste King, a household appliance company, Presto
Food Products, Inc. and United Detector Technology. Mr. Mehra holds a B.A.
from the School of Business of the University of Massachusetts, Amherst, and a
M.B.A from Pepperdine University. Mr. Deepak Chopra is the first cousin of Mr.
Mehra.
 
  Andreas F. Kotowski has served as the President of U.S. Operations, General
Manager and a director of the Company's subsidiary, Rapiscan U.S.A., since
January 1993. As General Manager of Rapiscan U.S.A., Mr. Kotowski is also
responsible for the operations of Rapiscan UK, the subsidiary of Rapiscan
U.S.A. From September 1989 to January 1993, Mr. Kotowski was self-employed as
an Engineering Consultant providing technical and management consulting
services to businesses in the explosive detection and medical imaging
industries. In 1992, Mr. Kotowski was a director of Dextra Medical, Inc., a
company that filed for bankruptcy in July of that year. From 1979 to 1989, Mr.
Kotowski held various positions with EG&G Astrophysics, including Vice
President of Engineering and Chief Engineer in which he was responsible for
product planning, design, development and management. Prior to 1979, he worked
as an Engineer at National
 
                                      42
<PAGE>
 
Semiconductor Corporation and the Jet Propulsion Laboratory. Mr. Kotowski
holds a B.S. in Electrical Engineering and a B.S. in Physics from California
State Polytechnic University, Pomona, and a M.S. in Electrical Engineering
from Stanford University.
 
  Manoocher Mansouri Aliabadi has served as Vice President of Corporate
Marketing for the Company's UDT Sensors subsidiary since March 1994. From
March 1992 to November 1993, Mr. Mansouri served as Director of Sales and
Marketing for UDT Sensors, and from 1990 to 1992, as a Division Director of
the Aerospace and Defense Division of UDT Sensors. Mr. Mansouri joined United
Detector Technology, the predecessor of UDT Sensors in 1982 as an Engineer and
holds a B.S. in Electrical Engineering from the University of California, Los
Angeles.
 
  Anthony S. Crane has served as Managing Director of the Company's
subsidiary, Rapiscan UK, since March 1996. From March 1995 to March 1996, he
served as Sales and Marketing Director for Rapiscan UK, and from February 1993
to March 1995, he served as Sales Director, Middle East, for Rapiscan UK. From
November 1980 to January 1993, Mr. Crane held various positions at Rapiscan UK
before it was acquired by the Company including Exports Business Manager,
Sales Manager and Service Engineer. From May 1974 to November 1980, Mr. Crane
served as Production Coordinator and Electrical and Electronic Inspector for
Redifon Flight Simulation where he was responsible for production and customer
relations.
 
  Thomas K. Hickman has served as Managing Director of the Company's
subsidiaries, OSI Singapore and OSI Malaysia, since July 1995 and as the
Managing Director of Rapiscan Consortium (M) Sdn. Bhd. since its formation in
October 1996. From July 1993 to July 1995, Mr. Hickman served as Vice
President of Operations and Director of Operations for Rapiscan U.S.A. and
Rapiscan UK, respectively. From November 1992 to July 1993, Mr. Hickman served
as Director of Materials for UDT Sensors and, from July through November 1992,
provided service as an independent consultant to UDT Sensors. From 1985
through 1992, Mr. Hickman held various positions at Mouse Systems Corporation,
a manufacturer of computer optical mouse systems, including that of Director
of OEM Operations, Purchasing Manager and Representative Director of a joint
venture. Prior to 1985, Mr. Hickman was the Director of Materials for Measurex
Corporation, the Representative Director for Hitachi-Singer Corp. and a
Product Line Manager for Singer Business Machines. Mr. Hickman holds a B.A.
from Stetson University and a M.B.A. from the University of San Francisco.
 
  Steven C. Good has served as Director of the Company since September 1987.
He is a Senior Partner in the accounting firm of Good Swartz & Berns, which he
founded in 1974, and has been active in consulting and advisory services for
businesses in various sectors including the manufacturing, garment, medical
services and real estate development industries. Mr. Good is the founder and
has served as Chairman of California United Bancorp, and was elected in 1997
as a Director of Arden Realty Group, Inc., a publicly-held Real Estate
Investment Trust listed on the New York Stock Exchange. Mr. Good holds a B.S.
in Business Administration from the University of California, Los Angeles.
 
  Meyer Luskin has served as Director of the Company since February 1990.
Since 1961 Mr. Luskin has served as the President, Chief Executive Officer and
Chairman of the Board of Scope Industries, a publicly-held company listed on
the American Stock Exchange and engaged in the animal food and waste product
business. Mr. Luskin has also served as Director of Scope Industries since
1958 and currently serves as Director of Stamet, Inc., an industrial solid
pump manufacturer. Mr. Luskin holds a B.A. from the University of California,
Los Angeles, and a M.B.A. from Stanford University.
 
  Madan G. Syal has served as Director of the Company since the Company's
inception in May 1987. From May 1987 until February 1992, he served as
Secretary of the Company. Mr. Syal is the sole proprietor of Pro Printers, a
printing service business he founded in October 1984. Prior to 1984, Mr. Syal
held various positions with Shell Oil Company, Exxon Corporation, Burmah Oil
Company, C.F. Braun and Bechtel Group, Incorporated. Mr. Syal holds a B.S.
from the American College in Lahore (now Pakistan) and a B.S.E. in Electrical
and Mechanical Engineering from London University. Mr. Deepak Chopra is the
son-in-law of Mr. Syal.
 
                                      43
<PAGE>
 
  There are currently five members of the Board of Directors. After the
completion of the Offering, the management of the Company intends to increase
the number of independent directors of the Company by increasing the number of
directors constituting the Board of Directors. No nominees for the additional
Board seats have yet been identified. The Directors serve until the next
annual meeting of shareholders or until successors are elected and qualified.
The Company's executive officers are appointed by, and serve at the discretion
of, the Board of Directors of the Company.
 
  The Board of Directors has established an Audit Committee and a Compensation
Committee. The functions of the Audit Committee include recommending to the
Board the selection and retention of independent auditors, reviewing the scope
of the annual audit undertaken by the Company's independent auditors and the
progress and results of their work, and reviewing the financial statements of
the Company and its internal accounting and auditing procedures. The functions
of the Compensation Committee include establishing the compensation of the
Chief Executive Officer, reviewing and approving executive compensation
policies and practices, reviewing salaries and bonuses for certain executive
officers of the Company, administering the Company's employee stock option
plans, and considering such other matters as may, from time to time, be
delegated to the Compensation Committee by the Board of Directors.
 
  Each non-employee Director currently receives a cash fee of $1,250 per Board
meeting attended and an additional $1,250 per Board committee meeting attended
if such committee meeting is held on a day different from that of the Board
meeting. During the fiscal year ended June 30, 1996, each non-employee
Director received, as additional director compensation, options to purchase
11,250 shares of Common Stock at an exercise price of $2.00 per share. The
Directors are reimbursed for expenses incurred in connection with the
performance of their services as Directors.
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
  During the fiscal year ended June 30, 1996, all of the outside Directors,
Steven C. Good, Meyer Luskin and Madan G. Syal, served on the Board's
compensation committee. Certain transactions between the Company and the
members of the compensation committee include the following: Mr. Good is a
senior partner of Good Swartz & Berns, an accounting firm that provided
services to the Company. The Good Swartz & Berns Pension Fund, in which Mr.
Good participates, exercised certain warrants to purchase stock of the Company
by applying the outstanding principal amount under certain promissory notes
issued to the pension fund by the Company. Mr. Luskin is the President, Chief
Executive Officer and Chairman of Scope Industries which provided consultation
services to the Company for a fee in the amount of $100,000. Scope Industries
also exercised certain warrants to purchase stock of the Company by applying
the outstanding principal amount under a promissory note issued by the Company
to Scope Industries. Mr. Syal owns Pro Printers, a printing service company
that provides printing services to the Company. For additional information
regarding these direct or indirect transactions between the outside Directors,
see "Certain Transactions." Mr. Syal is the father-in-law of Deepak Chopra,
the President, Chief Executive Officer and Chairman of the Company.
 
  The Company believes that each of the foregoing transactions was on terms at
least as favorable to the Company as those that could have been obtained from
nonaffiliated third parties. The Company currently intends that any future
transactions with affiliates of the Company will be on terms at least as
favorable to the Company as those that can be obtained from nonaffiliated
third parties.
 
                                      44
<PAGE>
 
EXECUTIVE COMPENSATION
 
  The following table sets forth certain compensation earned during the fiscal
year ended June 30, 1996, by the Company's Chief Executive Officer and the
four other most highly compensated executive officers whose total salary and
bonus during such year exceeded $100,000 (collectively, the "Named Executive
Officers"):
 
                          SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                              ANNUAL       LONG TERM
                           COMPENSATION   COMPENSATION
                         ---------------- ------------
                                           SECURITIES
NAME AND PRINCIPAL                         UNDERLYING
POSITION                  SALARY   BONUS  OPTIONS (#)
- ------------------       -------- ------- ------------
<S>                      <C>      <C>     <C>
Deepak Chopra(1)........ $317,107 $25,000         0
 Chief Executive Officer
Ajay Mehra .............  150,342   8,000         0
 Chief Financial Officer
Andreas F. Kotowski ....  113,357       0         0
 President of U.S.
  Operation, Rapiscan
  U.S.A.
Manoocher Mansouri
 Aliabadi...............   95,075   5,000         0
 Vice President--
  Corporate Marketing,
  UDT Sensors
Thomas K. Hickman ......  125,466       0    15,000
 Managing Director, OSI
  Malaysia and OSI
  Singapore
</TABLE>
- ---------------------
(1) The Company paid aggregate insurance premiums of approximately $23,000 for
    two universal life insurance policies of Mr. Chopra. Mr. Chopra or his
    estate is obligated to repay to the Company all amounts paid by it on
    behalf of Mr. Chopra upon the death or termination of employment of Mr.
    Chopra. The value of such benefit is not susceptible to precise
    determination.
 
  The Company has entered into an employment agreement with Deepak Chopra,
with a term of five years commencing on April 1, 1997, pursuant to which he
serves as President, Chief Executive Officer and Chairman of the Board of the
Company. The employment agreement provides for a base salary of $450,000 per
year, with annual raises to be determined by the Compensation Committee.
Pursuant to the employment agreement, Mr. Chopra is also entitled to receive
at least one-third of the amount of the aggregate bonus pool established by
the Company for its officers and employees. Mr. Chopra is eligible to
participate in certain incentive compensation and other employee benefit plans
established by the Company from time to time.
   
  The Company has also entered into a three-year employment agreement with
Ajay Mehra and a two-year employment agreement with Manoocher Mansouri
Aliabadi, each of which became effective on April 1, 1997. The employment
agreements provide for base salaries of $200,000 and $120,000 per year, for
Messrs. Mehra and Mansouri, respectively, with annual raises to be determined
by the Company's Chief Executive Officer. Pursuant to these employment
agreements, Messrs. Mehra and Mansouri are also eligible for certain bonus
payments and to participate in incentive compensation and other employee
benefit plans established by the Company from time to time. Each of the
employment agreements contains confidentiality provisions and provides that
the employee shall assign and the Company shall be entitled to any inventions
or other proprietary rights developed by the employee under certain
circumstances during his employment.     
   
  Andreas F. Kotowski is currently employed by the Company pursuant to an
employment agreement that is terminable by either party thereto at any time
for any reason. Mr. Kotowski's current annual salary is $140,000.     
   
  Thomas K. Hickman is currently employed by the Company pursuant to an
employment agreement that may be terminated by either the Company or by Mr.
Hickman upon six months prior notice. Under the employment agreement, Mr.
Hickman's annual salary is $125,000. In addition to the salary, the Company
has agreed to pay certain relocation expenses related to Mr. Hickman's service
in Singapore.     
   
  Anthony S. Crane is currently employed by the Company pursuant to an
employment agreement with a term that ends in December 1998.     
 
 
                                      45
<PAGE>
 
  Pursuant to an incentive compensation agreement entered into in December
1996 by the Company and Andreas F. Kotowski, Mr. Kotowski is entitled to
receive as additional incentive compensation, 10.0% of the consolidated pre-
tax earnings of Rapiscan U.S.A. and Rapiscan UK in excess of certain pre-
determined amounts. Such incentive compensation may not exceed $150,000 for
any fiscal year and is based on earnings of Rapiscan U.S.A. and Rapiscan UK
for the 1997, 1998 and 1999 fiscal years.
 
  The management of the Company allocates bonuses to officers and employees of
the Company under a bonus plan that has been in effect since the Company's
inception. The amount of bonus for each officer or employee is determined by
comparing the profits of the subsidiary or division in which such person
performed services against the budget profit goals for such subsidiary or
division as determined before the start of the fiscal year. Bonuses were
distributed to over 100 officers and employees in August 1996 based on their
performances during the fiscal year ended June 30, 1996.
 
  Option Grants. The following table sets forth certain information concerning
grants of options to the Named Executive Officers during the year ended June
30, 1996:
 
                       OPTION GRANTS IN LAST FISCAL YEAR
 
<TABLE>
<CAPTION>
                                                                          POTENTIAL REALIZABLE
                                                                            VALUE AT ASSUMED
                          NUMBER OF    % OF TOTAL                         ANNUAL RATES OF STOCK
                         SECURITIES     OPTIONS                          PRICE APPRECIATION FOR
                         UNDERLYING    GRANTED TO   EXERCISE                 OPTION TERM(1)
                           OPTIONS     EMPLOYEES      PRICE   EXPIRATION -----------------------
          NAME           GRANTED (#) IN FISCAL YEAR ($/SHARE)    DATE      5% ($)      10% ($)
          ----           ----------- -------------- --------- ---------- ----------- -----------
<S>                      <C>         <C>            <C>       <C>        <C>         <C>
Thomas K. Hickman(2)....   15,000         87.0%       2.50      6/3/01   $    10,361 $    22,894
</TABLE>
 
- ---------------------
(1) Sets forth potential option gains based on assumed annualized rates of
    stock price appreciation from the exercise price at the date of grant of
    5.0% and 10.0% (compounded annually) over the full term of the grant with
    appreciation determined as of the expiration date. The 5.0% and 10.0%
    assumed rates of appreciation are mandated by the rules of the Securities
    and Exchange Commission, and do not represent the Company's estimate or
    projection of future Common Stock prices.
(2) This grant was made in June 1996. One half of the total number of options
    granted was exercisable on the first anniversary of the grant date; one
    quarter is exercisable on each of the second and third anniversary dates.
 
  Option Exercises and Fiscal Year-End Values. The following table sets forth
certain information regarding option exercises by the Named Executive Officers
during the fiscal year 1996 and held by them on June 30, 1996:
 
                AGGREGATED OPTION EXERCISES IN LAST FISCAL YEAR
                       AND FISCAL YEAR-END OPTION VALUES
 
<TABLE>
<CAPTION>
                                                     NUMBER OF SECURITIES
                                                    UNDERLYING UNEXERCISED   VALUE OF UNEXERCISED IN-
                                                    OPTIONS AT FISCAL YEAR-    THE-MONEY OPTIONS AT
                                                            END (#)           FISCAL YEAR END ($)(1)
                                                   ------------------------- -------------------------
                            SHARES
                         ACQUIRED ON     VALUE
          NAME           EXERCISE (#) REALIZED ($) EXERCISABLE UNEXERCISABLE EXERCISABLE UNEXERCISABLE
          ----           ------------ ------------ ----------- ------------- ----------- -------------
<S>                      <C>          <C>          <C>         <C>           <C>         <C>
Deepak Chopra...........        0           --            0            0             0            0
Ajay Mehra..............    2,250       $27,375      46,500        7,500       532,850       83,750
Andreas F. Kotowski.....        0           --            0            0             0            0
Manoocher Mansouri
 Aliabadi...............    3,000       $36,500      12,750        1,500       150,125       17,250
Thomas K. Hickman.......        0           --       10,500       19,500       119,175      216,125
</TABLE>
- ---------------------
(1) Amounts are shown as the positive spread between the exercise price and
    fair market value (based on an estimated initial offering price of $13.50
    per share).
 
 
                                      46
<PAGE>
 
STOCK OPTION PLANS
 
  1987 Incentive Stock Option Plan. In May 1987, the Board of Directors
adopted the Incentive Stock Option Plan (the "1987 Plan"). The 1987 Plan
provides for the grant of options to directors, officers and other key
employees of the Company to purchase up to an aggregate of 1,050,000 shares of
Common Stock. The purpose of the 1987 Plan is to provide participants with
incentives which will encourage them to acquire a proprietary interest in, and
continue to provide services to, the Company. The 1987 Plan is administered by
the Board of Directors which has discretion to select optionees and to
establish the terms and conditions of each option, subject to the provisions
of the 1987 Plan. Pursuant to the 1987 Plan, the Company has from time to time
granted its directors, officers and employees options to purchase shares of
the Company's Common Stock at exercise prices determined by the Board of
Directors. The stock options generally expire either on the fifth or tenth
anniversary of the date of grant of the option. All stock options are non-
transferrable by the grantee and may be exercised only by the optionee during
his service to the Company as a director, officer or employee. The aggregate
number of options issuable under the 1987 Plan, number of options outstanding
and the exercise price thereof are subject to adjustment in the case of
certain transactions such as mergers, recapitalizations, stock splits or stock
dividends. As of May 31, 1997, 384,375 shares had been issued upon the
exercise of stock options under the 1987 Plan, stock options to purchase an
aggregate of 430,500 shares were outstanding under the 1987 Plan at exercise
prices ranging from $0.17 to $3.33 per share, and 235,125 shares remained
available for grant. As of such date, stock options to purchase 381,188 shares
of Common Stock were exercisable. No stock options may be granted under the
1987 Plan after December 31, 1998.
   
  1997 Stock Option Plan. In May 1997, the Board of Directors adopted the
Company's 1997 Stock Option Plan (the "1997 Plan"). The 1997 Plan, which was
approved by the Company's shareholders in June 1997, provides for the grant of
options to directors, officers, other employees and consultants of the Company
to purchase up to an aggregate of 850,000 shares of Common Stock. No eligible
person may be granted options during any 12-month period covering more than
425,000 shares of Common Stock. The purpose of the 1997 Plan is to provide
participants with incentives which will encourage them to acquire a
proprietary interest in, and continue to provide services to, the Company. The
1997 Plan is to be administered by the Board of Directors, or a committee of
the Board, which has discretion to select optionees and to establish the terms
and conditions of each option, subject to the provisions of the 1997 Plan.
Options granted under the 1997 Plan may be "incentive stock options" as
defined in Section 422 of the Internal Revenue Code of 1986, as amended (the
"Code"), or nonqualified options.     
 
  The exercise price of incentive stock options may not be less than 100% of
the fair market value of Common Stock as of the date of grant (110% of the
fair market value if the grant is to an employee who owns more than 10.0% of
the total combined voting power of all classes of capital stock of the
Company). The Code currently limits to $100,000 the aggregate value of Common
Stock that may be acquired in any one year pursuant to incentive stock options
under the 1997 Plan or any other option plan adopted by the Company.
Nonqualified options may be granted under the 1997 Plan at an exercise price
of not less than 85.0% of the fair market value of the Common Stock on the
date of grant. Nonqualified options may be granted without regard to any
restriction on the amount of Common Stock that may be acquired pursuant to
such options in any one year. Options may not be exercised more than ten years
after the date of grant (five years after the date of grant if the grant is an
incentive stock option to an employee who owns more than 10.0% of the total
combined voting power of all classes of capital stock of the Company). Options
granted under the 1997 Plan generally are nontransferable, but transfers may
be permitted under certain circumstances in the discretion of the
administrator. Shares subject to options that expire unexercised under the
1997 Plan will once again become available for future grant under the 1997
Plan. The number of options outstanding and the exercise price thereof are
subject to adjustment in the case of certain transactions such as mergers,
recapitalizations, stock splits or stock dividends. The 1997 Plan is effective
for ten years, unless sooner terminated or suspended.
 
  In May 1997, the Board of Directors of the Company authorized grants of
options to purchase 434,486 shares of Common Stock available for issuance
under the 1997 Plan to certain directors, officers and
 
                                      47
<PAGE>
 
employees of the Company. Of these options, 125,000 are exercisable at a price
of $13.50 per share and 309,486 are exercisable at $11.50 per share. The
options generally will be subject to vesting and will become exercisable over
a period of four years from the date of grant, subject to the optionee's
continuing employment with the Company.
 
  In general, upon termination of employment of an optionee, all options
granted to such person which were not exercisable on the date of such
termination will immediately terminate, and any options that are exercisable
will terminate not more than three months (six months in the case of
termination by reason of death or disability) following termination of
employment.
 
  To the extent nonqualified options are granted under the 1987 Plan and the
1997 Plan after the Offering, the Company intends to issue such options with
an exercise price of not less than the market price of the Common Stock on the
date of grant.
 
EMPLOYEE BENEFIT PLAN, PENSION PLANS
 
  In 1991, the Company established a tax-qualified employee savings and
retirement plan (the "401(k) Plan") covering all of its employees. Pursuant to
the 401(k) Plan, employees may elect to reduce their current compensation by
up to the annual limit prescribed by statute ($9,500 in 1997) and contribute
the amount of such reduction to the 401(k) Plan. The 401(k) Plan allows for
matching contributions to the 401(k) Plan by the Company, such matching and
the amount of such matching to be determined at the sole discretion of the
Board of Directors. To date, no such matching contributions have been made
with respect to the 401(k) Plan. The trustee under the 401(k) Plan, at the
direction of each participant, invests the assets of the 401(k) Plan in
numerous investment options. The 401(k) Plan is intended to qualify under
Section 401 of the Code so that contributions by employees to the 401(k) Plan,
and income earned on plan contributions, are not taxable until withdrawn, and
so that the contributions by employees will be deductible by the Company when
made.
 
  Rapiscan UK and AME each have a pension plan in effect for certain of their
employees. As of the date hereof, approximately 50 employees are covered by
these plans.
 
LIMITATION ON DIRECTORS' LIABILITY
   
  The Company's Articles of Incorporation ("Articles") provide that, pursuant
to the California Corporations Code, the liability of the directors of the
Company for monetary damages shall be eliminated to the fullest extent
permissible under California law. This is intended to eliminate the personal
liability of a director for monetary damages in an action brought by, or in
the right of, the Company for breach of a director's duties to the Company or
its shareholders. This provision in the Articles does not eliminate the
directors' fiduciary duty and does not apply for certain liabilities: (i) for
acts or omissions that involve intentional misconduct or a knowing and
culpable violation of law; (ii) for acts or omissions that a director believes
to be contrary to the best interest of the Company or its shareholders or that
involve the absence of good faith on the part of the director; (iii) for any
transaction from which a director derived an improper personal benefit; (iv)
for acts or omissions that show a reckless disregard for the director's duty
to the Company or its shareholders in circumstances in which the director was
aware, or should have been aware, in the ordinary course of performing a
director's duties, of a risk of serious injury to the Company or its
shareholders; (v) for acts or omissions that constitute an unexcused pattern
of inattention that amounts to an abdication of the director's duty to the
Company or its shareholders; (vi) with respect to certain transactions or the
approval of transactions in which a director has a material financial
interest; and (vii) expressly imposed by statute for approval of certain
improper distributions to shareholders or certain loans or guarantees. This
provision also does not limit or eliminate the rights of the Company or any
shareholder to seek non-monetary relief such as an injunction or rescission in
the event of a breach of a director's duty of care. The Company's Amended and
Restated Bylaws require the Company to indemnify its officers and directors
under certain circumstances Among other things, the Bylaws require the Company
to indemnify directors and officers against certain liabilities that may arise
by reason of their status or service as directors and officers and allows     
 
                                      48
<PAGE>
 
the Company to advance their expenses incurred as a result of any proceeding
against them as to which they could be indemnified.
 
  The Company believes that it is the position of the Commission that insofar
as the foregoing provision may be invoked to disclaim liability for damages
arising under the Securities Act, the provision is against public policy as
expressed in the Securities Act and is therefore unenforceable. Such
limitation of liability also does not affect the availability of equitable
remedies such as injunctive relief or rescission.
   
  The Company intends to enter into indemnification agreements
("Indemnification Agreement(s)") with each of its directors and executive
officers prior to the consummation of the Offering. Each such Indemnification
Agreement will provide that the Company will indemnify the indemnitee against
expenses, including reasonable attorneys' fees, judgements, penalties, fines
and amounts paid in settlement actually and reasonably incurred by him in
connection with any civil or criminal action or administrative proceeding
arising out of the performance of his duties as a director or officer, other
than an action instituted by the director or officer. Such indemnification is
available if the indemnitee acted in good faith and in a manner he reasonably
believed to be in or not opposed to the best interests of the Company, and,
with respect to any criminal action, had no reasonable cause to believe his
conduct was unlawful. The Indemnification Agreements will also require that
the Company indemnify the director or executive officer in all cases to the
fullest extent permitted by applicable law. Each Indemnification Agreement
will permit the director or officer that is party thereto to bring suit to
seek recovery of amounts due under the Indemnification Agreement and to
recover the expenses of such a suit if he is successful. Insofar as
indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers or persons controlling the Company pursuant
to the foregoing provisions, the Company has been informed that in the opinion
of the Commission, such indemnification is against public policy as expressed
in the Securities Act and is therefore unenforceable. The Company believes
that its Articles and Bylaw provisions are necessary to attract and retain
qualified persons as directors and officers.     
 
                                      49
<PAGE>
 
                             CERTAIN TRANSACTIONS
   
  In 1993, the Company formed Rapiscan U.S.A. for the purpose of acquiring
most of the capital stock of Rapiscan UK. As of October 1996, the Company
owned 85.5% of the outstanding capital stock of Rapiscan U.S.A., and 14.5%
(the "Option Shares") was owned by executive officers or employees of the
Company, including Ajay Mehra, Andreas F. Kotowski, Anthony S. Crane and
Thomas K. Hickman. See "Management--Executive Officers and Directors." In
connection with the formation of Rapiscan U.S.A., the Company was granted an
option to purchase all of the Option Shares. In November 1996, the Company
exercised its option to acquire the Option Shares. The aggregate consideration
paid for the Option Shares consisted of the following: (i) the issuance of a
total of 159,201 shares of Common Stock valued at $6.67 per share; (ii) the
issuance of options to purchase a total of 45,486 shares of Common Stock at a
purchase price of $11.50 per share; and (iii) an agreement by the Company to
issue to the holders of the Option Shares up to 45,486 additional shares of
Common Stock based on the net income before taxes of Rapiscan U.S.A. and
Rapiscan UK combined for the fiscal year ending June 30, 1997. The number of
shares to be issued after June 30, 1997 cannot yet be accurately established.
The consideration paid by each of Messrs. Kotowski, Crane, Hickman and Mehra
for their minority interests in Rapiscan U.S.A. was $119,372, $6,610, $500 and
$125, respectively.     
   
  Until September 1996, the Company owned approximately 95.9% of the
outstanding capital stock of Ferson Optics, Inc., and certain employees and
officers of the Company, including Ajay Mehra and Thomas K. Hickman, the
Managing Director of OSI Malaysia, owned the remaining shares. Mr. Mehra and
Mr. Hickman acquired their minority interests in Ferson for $250 and $3,000,
respectively. In September 1996, the Company purchased all of the remaining
shares of Ferson from the minority shareholders in exchange for a total of
19,755 shares of Common Stock. The Common Stock was valued at $6.67 per share.
Ajay Mehra and Thomas K. Hickman received 12,500 and 750 shares of Common
Stock, respectively, in connection with the foregoing exchange.     
 
  In June 1989, April 1990 and February 1993 the Company, as part of its plan
of financing, issued subordinated promissory notes in the aggregate principal
amounts of approximately $385,000, $3,520,000 and $575,000, respectively, with
related warrants or conversion rights to purchase capital stock of the
Company. The purchasers of the subordinated notes included certain of the
Company's directors, executive officers, principal shareholders and members of
their families (collectively, the "Related Parties"). The June 1989 promissory
notes bore interest at a fixed rate of 11.00% per annum while the April 1990
and February 1993 promissory notes bore interest at a variable rate based on
certain banks' prime rate plus 1.50% per annum. The promissory notes, warrants
and conversion rights provided that the note holders were entitled to exercise
the warrants or convert the notes into capital stock of the Company by
cancelling the appropriate amounts of the outstanding principal amount and
accrued interest of such promissory notes. The exercise price of the warrants
issued in June 1989 and April 1990 was $1.33 per share, whereas the exercise
price of the warrants and convertible notes issued in February 1993 was $1.87
per share.
 
  During fiscal 1995, fiscal 1996 and the nine-month period ended March 31,
1997, all amounts outstanding under the promissory notes were either paid in
full by the Company to the note holders or applied towards the exercise of the
related warrants or conversion rights at the election of the note holders. The
Company paid in cash the outstanding principal amount of $530,000 and all
interest due thereon to one principal shareholder, Sally F. Chamberlain, in
satisfaction of the promissory notes held by her personally and as trustee of
the Edward P. Fleischer and Sally F. Fleischer Family Trust. The other Related
Parties elected to exercise their warrants and conversion rights by purchasing
the Company's capital stock with the outstanding principal amounts of their
promissory notes. As a result, certain Related Parties who were collectively
owed $2,710,000 under the promissory notes, were issued an aggregate of
2,030,358 shares of Common Stock in lieu of the repayment of the principal
amount of their promissory notes. Other Related Parties included Scope
Industries, Ajay Mehra, members of Mr. Mehra's family, members of Mr. Chopra's
family, and the Good Swartz & Berns Pension Fund. Scope Industries is a
principal shareholder of the Company, and Meyer Luskin
 
                                      50
<PAGE>
 
is a director of the Company and is the President, director and a major
shareholder of Scope Industries. Steve C. Good is a director of the Company
and a participant in the Good Swartz & Berns Pension Fund.
 
  The Company, Mr. Chopra and Mr. Mehra, each currently owns a 36.0%, 10.5%
and 4.5% interest, respectively, in ECIL Rapiscan. Mr. Chopra is the Chairman,
President and Chief Executive Officer of the Company. The remaining 49.0%
interest in ECIL Rapiscan is owned by ECIL, an unaffiliated Indian company.
The Company sells the security and inspection kits to ECIL at a price no less
favorable to the Company than the price the Company charges unaffiliated third
parties for such products. To date the Company's portion of the earnings of
ECIL Rapiscan have been insignificant.
 
  Pursuant to a Consulting Agreement entered into in July 1996, the Company
hired Scope Industries to provide planning and financial consulting services
to the Company including advice regarding the valuation of the Company and
certain of its subsidiaries. Upon the completion of the consulting services in
December 1996, the Company paid Scope Industries a fee in the amount of
$100,000 as full payment for such services.
 
  From time to time the Company contracts for automobile rental and messenger
services from a business that is owned by Deepak Chopra and his wife. The
Company paid the business approximately $83,000 for such services during
fiscal 1996 and approximately $87,000 for such services during the nine-month
period ended March 31, 1997. The Company also contracts for printing services
from a business owned by Madan G. Syal, a director of the Company. The Company
paid the business approximately $63,000 for such services during fiscal 1996
and approximately $64,000 for such services during the nine-month period ended
March 31, 1997.
 
  The Company believes that each of the foregoing transactions was on terms at
least as favorable to the Company as those that could have been obtained from
nonaffiliated third parties. The Company currently intends that any future
transactions with affiliates of the Company will be on terms at least as
favorable to the Company as those that can be obtained from nonaffiliated
third parties.
 
                                      51
<PAGE>

 
                      PRINCIPAL AND SELLING SHAREHOLDERS
 
  The following table sets forth the beneficial ownership of Common Stock as
of May 31, 1997, and as adjusted to reflect the sale of Common Stock offered
hereby (assuming no exercise of the Underwriters' over-allotment option), by:
(i) each person known by the Company to beneficially own 5.0% or more of the
outstanding shares of Common Stock; (ii) each director of the Company; (iii)
each Named Executive Officer of the Company; (iv) the Selling Shareholders;
and (v) all directors and executive officers of the Company as a group.
Footnotes (2) and (3) to the table also set forth certain information with
respect to the beneficial ownership of the Selling Shareholders, assuming the
Underwriters exercise their over-allotment option in full. The information set
forth in the table and accompanying footnotes has been furnished by the named
beneficial owners.
<TABLE>   
<CAPTION>
                                                                                
                                                                                
                                                                                
                                       SHARES                       SHARES      
                                    BENEFICIALLY                 BENEFICIALLY   
                                   OWNED PRIOR TO   NUMBER OF     OWNED AFTER  
                                     OFFERING(1)      SHARES    OFFERING(1)(3) 
                                  -----------------   BEING    -----------------
   NAME AND BENEFICIAL OWNERS      NUMBER   PERCENT OFFERED(2)  NUMBER   PERCENT
   --------------------------     --------- ------- ---------- --------- -------
<S>                               <C>       <C>     <C>        <C>       <C>
Scope Industries(4)(5)..........  1,875,000  30.6%   148,148   1,726,852  18.3%
Sally F. Chamberlain(6)(7)......  1,170,375  19.1     47,593   1,122,782  11.9
Deepak Chopra(6)(8).............  1,539,484  25.0          0   1,539,484  16.2
Ajay Mehra(9)...................    193,413   3.1          0     193,413   2.0
Andreas F. Kotowski(10).........    110,852   1.8          0     110,852   1.2
Manoocher Mansouri Aliabadi(11).     73,607   1.2          0      73,607    *
Thomas K. Hickman(12)...........     27,000    *           0      27,000    *
Steven C. Good(13)..............     40,500    *      21,896      18,604    *
Madan G. Syal(14)...............    241,125   3.9     25,926     215,199   2.3
Meyer Luskin(15)................     20,625    *           0      20,625    *
Good Swartz & Berns Pension
 Fund(16).......................    148,125   2.4      3,000     145,125   1.5
Leila and Birender Mehra........     25,500    *       3,704      21,796    *
Zev and Elaine Edelstein Trust..     77,679   1.3      9,259      68,420    *
Mohinder and Ranjana Chopra.....     75,000   1.2      9,259      65,741    *
Glenn P. Sorenson...............     75,000   1.2      9,259      65,741    *
Charles and Kiran M. Kerpelman..     65,357   1.1      9,259      56,098    *
Martha B. Holmes................     60,000    *       9,259      50,741    *
Taheri and Durriya Rangwala.....     52,500    *       7,407      45,093    *
Cynthia G. Fleischer............     15,750    *      15,750           0    --
Gary F. Fleischer...............     14,625    *      14,625           0    --
Cathleen A. Fleischer...........     14,625    *      14,625           0    --
Mark and Penny Berns Trust......      9,732    *       5,982       3,750    *
Arnold and Hope Anisgarten......      9,287    *       5,709       3,578    *
Rajiv Mehra.....................      1,607    *         450       1,157    *
Surendra and Kala Jain(17)......     13,393    *       5,186       8,207    *
Renu Jivrajka...................     11,250    *       1,852       9,398    *
Amita Jivrajka..................      7,500    *       1,852       5,648    *
All executive officers and
 directors as a group
 (9 persons)....................  2,259,106  35.9     47,822   2,211,284  23.0
</TABLE>    
- ---------------------
 * Less than 1.0%.
(1) Beneficial ownership is determined in accordance with the rules of the
    Securities and Exchange Commission and generally includes voting or
    investment power with respect to securities. Shares of Common Stock
    subject to options currently exercisable, or exercisable within 60 days of
    May 31, 1997, are deemed outstanding for computing the percentage of the
    person holding such options but are not deemed outstanding for computing
    the percentage of any other person. Except as indicated by footnote and
    subject to community property laws where applicable, the persons named in
    the table have sole voting and investment power with respect to all shares
    of Common Stock shown as beneficially owned by them.
 
                                      52
<PAGE>
 
 (2) Excludes shares of Common Stock to be offered by the Selling Shareholders
     if the over-allotment option granted to the Underwriters is exercised.
     The following Selling Shareholders will sell the following number of
     additional shares of Common Stock if the Underwriters' over-allotment
     option is exercised in full: Scope Industries (79,260); Sally F.
     Chamberlain (49,630); Deepak Chopra (185,185); Ajay Mehra (33,333);
     Andreas F. Kotowski (18,519); Manoocher Mansouri Aliabadi (14,815);
     Thomas K. Hickman (3,704); Steven C. Good (15,604); Madan G. Syal
     (18,519); Meyer Luskin (9,259); Good Swartz & Berns Pension Fund (3,309);
     Leila and Birender Mehra (3,704); Zev and Elaine Edelstein Trust (9,259);
     Mohinder and Ranjana Chopra (11,111); Glenn P. Sorenson (11,111); Charles
     and Kiran M. Kerpelman (9,259); Martha B. Holmes (9,259); Taheri and
     Durriya Rangwala (7,407); Susan Sutherland (7,407); Anuj Wadhawan
     (7,407); Bette Moore (7,407); Robert Kephart (5,556); Phillip M. Wascher
     (7,407); Charan Dewan (3,704); Jack Kimbro (1,111); Narayan Taneja
     (1,481); Dennis Noble (741); Peter Bui (741); Allan J. and Pamela Barnard
     (1,481); Christine Williams (741); Christopher Chin (926); Anthony S. and
     Suzie B. Crane (1,481); Khai Li (741); Mark and Penny Berns Trust
     (1,518); Arnold and Hope Anisgarten (1,791); Surendra and Kala Jain
     (5,926); Neil Jivrajka (740); Renu Jivrajka (1,482); Amita Jivrajka
     (1,482); Louis S. and Linda O. Peters (741); Lincoln Gladden (741). Susan
     Sutherland, Anuj Wadhawan, Bette Moore, Robert Kephart, Phillip M.
     Wascher, Charan Dewan, Jack Kimbro, Narayan Taneja, Dennis Noble, Peter
     Bui, Allan J. Barnard, Christine Williams, Christopher Chin, Khai Li,
     Louis Peters and Lincoln Gladden are employees of the Company or its
     affiliates. Anthony S. Crane is the Managing Director of Rapiscan UK. See
     "Management."
   
 (3) Assuming the Underwriters' over-allotment option is exercised in full,
     the number and percent of the shares beneficially owned after the
     Offering by the Selling Shareholders will be as follows: Scope Industries
     (1,647,592, 17.4%); Sally F. Chamberlain (1,073,152, 11.3%); Deepak
     Chopra (1,354,299, 14.3%); Ajay Mehra (160,080, 1.7%); Andreas F.
     Kotowski (92,333); Manoocher Mansouri Aliabadi (58,792); Thomas K.
     Hickman (23,296); Steven C. Good (3,000); Madan G. Syal (196,680, 2.1%);
     Good Swartz & Berns Pension Fund (141,816, 1.5%); Leila and Birender
     Mehra (18,092); Zev and Elaine Edelstein Trust (59,161); Mohinder and
     Ranjana Chopra (54,630); Glenn P. Sorenson (54,630); Charles and Kiran M.
     Kerpelman (46,839); Martha B. Holmes (41,482); Taheri and Durriya
     Rangwala (37,686); Susan Sutherland (35,343); Anuj Wadhawan (29,835);
     Bette Moore (28,218); Robert Kephart (22,944); Phillip M. Wascher
     (19,593); Charan Dewan (16,171); Jack Kimbro (15,389); Narayan Taneja
     (23,698); Dennis Noble (11,446); Peter Bui (7,884); Allan J. and Pamela
     Barnard (8,382); Christine Williams (6,384); Christopher Chin (6,199);
     Anthony S. and Suzie B. Crane (11,019); Khai Li (8,409); Mark and Penny
     Berns Trust (2,232); Arnold and Hope Anisgarten (1,787); Surendra and
     Kala Jain (2,281); Neil Jivrajka (10,510); Renu Jivrajka (7,916); Amita
     Jivrajka (4,166); Louis S. and Linda O. Peters (6,510); Lincoln Gladden
     (4,134). Except as otherwise indicated in this footnote the percentage of
     Common Stock beneficially owned by the Selling Shareholders after this
     Offering if the over-allotment option is exercised in full is less than
     1.0% for each person listed in this footnote.     
 (4) The address of Scope Industries is 233 Wilshire Boulevard, Suite 310,
     Santa Monica, California 90401.
 (5) Does not include shares beneficially owned by Meyer Luskin. Mr. Luskin is
     the President, Chief Executive Officer, Chairman of the Board and a
     principal shareholder of Scope Industries.
 (6) The address of such shareholder is c\o OSI Systems, Inc., 12525 Chadron
     Avenue, Hawthorne, California 90250.
 (7) Such shares are held by Sally F. Chamberlain as Trustee of the Edward P.
     Fleischer and Sally F. Fleischer Family Trust dated June 3, 1991.
 (8) Includes 254,951 shares and 254,951 shares owned by The Deepika Chopra
     Trust UDT dated July 17, 1987 and The Chandini Chopra Trust UDT dated
     July 17, 1987, respectively. Deepak Chopra is the co-trustee of both
     irrevocable trusts. Also includes 10,179 shares and 10,179 shares owned
     by Deepika Chopra and Chandini Chopra, respectively, who are the
     daughters of Mr. Chopra. Of the balance of such shares, 960,099 shares
     are held jointly by Mr. Chopra and his wife, Nandini Chopra, and 49,125
     shares are held individually by Mr. Chopra. 37,500 shares of the 49,125
     shares are issuable pursuant to options exercisable within 60 days of May
     31, 1997. Mr. Chopra is the President, Chief Executive Officer and
     Chairman of the Board of the Company. See "Management."
 (9) Includes 75,000 shares issuable pursuant to options exercisable within 60
     days of May 31, 1997. Mr. Mehra is the Vice President, Chief Financial
     Officer, Secretary and Director of the Company. See "Management."
(10) Includes 7,500 shares issuable pursuant to options exercisable within 60
     days of May 31, 1997. Mr. Kotowski is the President of U.S. Operations of
     Rapiscan U.S.A. See "Management."
(11) Includes 13,500 shares issuable pursuant to options exercisable within 60
     days of May 31, 1997. Mr. Mansouri is the Vice President-Corporate
     Marketing of UDT Sensors. See "Management."
(12) Includes 15,187 shares issuable pursuant to options exercisable within 60
     days of May 31, 1997. Mr. Hickman is the Managing Director of OSI
     Singapore and OSI Malaysia. See "Management."
 
                                      53
<PAGE>
 
(13) Includes 22,500 shares held by the Steve Cary Good & Bari Anne Good Trust
     and 18,000 shares held individually by Mr. Good. Does not include shares
     beneficially owned by the Good Swartz & Berns Pension Fund. Mr. Good is a
     Director of the Company. See "Management."
(14) Includes 217,500 shares held jointly by Mr. Syal and his wife, Mohini
     Syal. Mr. Syal is a Director of the Company. See "Management."
(15) Includes 15,000 shares held by the Meyer and Doreen Luskin Family Trust.
     Does not include shares beneficially owned by Scope Industries. Includes
     5,625 shares issuable pursuant to options exercisable within 60 days of
     May 31, 1997. Mr. Luskin is the President, Chief Executive Officer,
     Chairman of the Board and a principal shareholder of Scope Industries.
(16) Does not include shares beneficially owned by Steven C. Good.
(17) Includes 6,429 shares held by Surendra Jain M.D. Inc.
 
                                      54
<PAGE>
 
                         DESCRIPTION OF CAPITAL STOCK
 
  The authorized capital stock of the Company currently consists of 40,000,000
shares of Common Stock and 10,000,000 shares of preferred stock.
 
COMMON STOCK
 
  As of May 31, 1997, 6,128,874 shares of Common Stock were outstanding, held
of record by 73 shareholders. After completion of the Offering, there will be
9,458,874 shares of Common Stock outstanding.
 
  The holders of Common Stock are entitled to one vote for each share held of
record on all matters submitted to a vote of the shareholders. The holders of
Common Stock are entitled to cumulative voting rights with respect to the
election of directors so long as at least one shareholder has given notice at
the meeting of shareholders prior to the voting of that shareholder's desire
to cumulate votes. Subject to preferences that may be applicable to any shares
of preferred stock issued in the future, holders of Common Stock are entitled
to receive ratably such dividends as may be declared by the Board of Directors
out of funds legally available therefore. See "Dividend Policy." In the event
of a liquidation, dissolution or winding up of the Company, holders of the
Common Stock are entitled to share ratably with the holders of any then
outstanding preferred stock in all assets remaining after payment of
liabilities and the liquidation preference of any then outstanding preferred
stock. Holders of Common Stock have no preemptive rights and no right to
convert their Common Stock into any other securities. There are no redemption
or sinking fund provisions applicable to the Common Stock. All outstanding
shares of Common Stock are, and all shares of Common Stock to be outstanding
upon completion of the Offering will be, fully paid and nonassessable.
 
PREFERRED STOCK
 
  The Board of Directors has authority to issue up to 10,000,000 shares of
preferred stock, no par value, and to fix the rights, preferences, privileges
and restrictions, including voting rights, of those shares without any future
vote or action by the shareholders. The rights of the holders of the Common
Stock will be subject to, and may be adversely affected by, the rights of the
holders of any preferred stock that may be issued in the future. The issuance
of preferred stock could have the effect of making it more difficult for a
third party to acquire a majority of the outstanding voting stock of the
Company, thereby delaying, deferring or preventing a change in control of the
Company. Furthermore, such preferred stock may have other rights, including
economic rights senior to the Common Stock, and, as a result, the issuance
thereof could have a material adverse effect on the market value of the Common
Stock. The Company has no present plans to issue shares of preferred stock. No
shares of preferred stock are currently outstanding.
 
STOCK TRANSFER AGENT AND REGISTRAR
 
  The transfer agent and registrar for the Company's Common Stock is U.S.
Stock Transfer Corporation.
 
                                      55
<PAGE>
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
  Upon completion of this Offering, the Company will have 9,458,874 shares of
Common Stock outstanding (assuming no exercise of stock options after May 31,
1997). Of these shares, the 3,700,000 shares sold in this Offering (4,255,000
shares if the Underwriters' over-allotment option is exercised in full) will
be freely tradeable without restriction or registration under the Securities
Act unless they are purchased by "affiliates" of the Company as that term is
defined under Rule 144. The remaining 5,758,874 shares will be "restricted
securities" as defined in Rule 144 ("Restricted Shares"). Of such Restricted
Shares, approximately 5,731,000 Restricted Shares (or approximately 5,176,000
if the Underwriters' over-allotment option is exercised in full) are subject
to lock-up agreements with the Underwriters. See "Underwriting."
 
  Future sales of substantial amounts of Common Stock in the public market
could adversely affect prevailing market prices and adversely affect the
Company's ability to raise additional capital in the capital markets at a time
and price favorable to the Company. As a result of the lock-up agreements and
the provisions of Rule 144(k), Rule 144 and Rule 701, all currently
outstanding shares will be available for sale in the public market upon
expiration of the lock-up agreements 180 days after the date of this
Prospectus, subject to the provisions of Rule 144 and Rule 701.
 
  In general, under Rule 144 as currently in effect, any person (or persons
whose shares are aggregated) who has beneficially owned Restricted Shares for
at least one year is entitled to sell, within any three-month period, a number
of shares that does not exceed the greater of 1.0% of the then outstanding
shares of the Company's Common Stock (approximately 94,589 shares immediately
after this Offering) or the average weekly trading volume during the four
calendar weeks preceding such sale. Sales under Rule 144 are also subject to
certain requirements as to the manner of sale, notice and availability of
current public information about the Company. A person who is not an
affiliate, has not been an affiliate within three months prior to the sale and
has beneficially owned the Restricted Shares for at least two years is
entitled to sell such shares under Rule 144(k) without regard to any of the
limitations described above.
 
  Subject to certain limitations on the aggregate offering price of a
transaction and other conditions, Rule 701 may be relied upon with respect to
the resale of securities originally purchased from the Company by its
employees, directors, officers, consultants or advisers between May 20, 1988,
the effective date of Rule 701, and the date the issuer becomes subject to the
reporting requirements of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), pursuant to written compensatory benefit plans or written
contracts relating to the compensation of such persons. In addition, the
Securities and Exchange Commission (the "Commission") has indicated that Rule
701 will apply to typical stock options granted by an issuer before it becomes
subject to the reporting requirements of the Exchange Act (including options
granted before May 20, 1988, if made in accordance with the Rule had it been
in effect), along with the shares acquired upon exercise of such options
beginning May 20, 1988 (including exercises after the date of this
Prospectus). Securities issued in reliance on Rule 701 are restricted
securities and, subject to the contractual restrictions described above,
beginning 90 days after the date of this Prospectus, such securities may be
sold: (i) by persons other than Affiliates, subject only to the manner of sale
provisions of Rule 144; and (ii) by Affiliates under Rule 144 without
compliance with its minimum holding period requirements.
 
  The Company intends to file a registration statement on Form S-8 under the
Securities Act to register the shares of Common Stock reserved for issuance
under the 1987 Plan and the 1997 Plan or previously issued upon the exercise
of options, thus permitting the resale of shares issued under such plans by
non-affiliates in the public market without restriction under the Securities
Act. The registration statement is expected to be filed within 90 days after
the date of this Prospectus and will automatically become effective upon
filing.
 
  Prior to this Offering, there has been no public market for the Common Stock
of the Company, and any sale of substantial amounts of Common Stock in the
open market may adversely affect the market price of Common Stock offered
hereby.
 
                                      56
<PAGE>
 
                                 UNDERWRITING
 
  The Underwriters (the "Underwriters") named below, acting through their
representatives, Robertson, Stephens & Company LLC, William Blair & Company,
L.L.C. and Volpe Brown Whelan & Company, LLC (the "Representatives"), have
severally agreed, subject to the terms and conditions of the Underwriting
Agreement by and among the Company, the Selling Shareholders and the
Underwriters, to purchase from the Company and the Selling Shareholders the
number of shares of Common Stock set forth opposite their respective names
below. The Underwriters are committed to purchase and pay for all of such
shares if any are purchased.
 
<TABLE>
<CAPTION>
                                                                       NUMBER OF
UNDERWRITER                                                             SHARES
- -----------                                                            ---------
<S>                                                                    <C>
Robertson, Stephens & Company LLC.....................................
William Blair & Company, L.L.C........................................
Volpe Brown Whelan & Company, LLC.....................................
                                                                       ---------
  Total............................................................... 3,700,000
                                                                       =========
</TABLE>
 
  The Representatives have advised the Company and the Selling Shareholders
that the Underwriters propose to offer the shares of Common Stock at the
offering price set forth on the cover page of this Prospectus: (i) to the
public; and (ii) to certain dealers who will be offered a concession of not
more than $   per share, of which $   may be reallowed to other dealers. After
the consummation of this Offering, the public offering price, concession and
reallowance to dealers may be reduced by the Representatives. No such
reduction shall change the amount of proceeds to be received by the Company or
the Selling Shareholders as set forth on the cover page of this Prospectus.
 
  The Underwriters have been granted an option, exercisable during the 30-day
period after the date of this Prospectus, to purchase up to 555,000 additional
shares of Common Stock from certain Selling Shareholders at the same price per
share as the Company and the Selling Shareholders will receive for the
3,700,000 shares that the Underwriters have agreed to purchase in the
Offering. To the extent that the Underwriters exercise such option, each of
the Underwriters will have a firm commitment to purchase approximately the
same percentage thereof that the number of shares of Common Stock to be
purchased by it set forth in the above table bears to the total number of
shares of Common Stock listed in such table. The Underwriters may exercise
such option only to cover over-allotments made in connection with the sale of
Common Stock offered hereby.
 
  The Underwriting Agreement contains covenants of indemnity among the
Underwriters, the Company and the Selling Shareholders against certain civil
liabilities, including liabilities under the Securities Act.
 
  Pursuant to the terms of certain lock-up agreements, officers and directors
of the Company, the Selling Shareholders and certain other shareholders
holding collectively approximately 5,731,000 shares of the Company's Common
Stock outstanding prior to the Offering, have agreed with the Representatives
that except for the 3,700,000 shares being offered in this Offering, or the
shares sold pursuant to the over-allotment option, without the prior written
consent of Robertson, Stephens & Company LLC or as a gift or distribution to
one who agrees to be bound by these restrictions, until 180 days after the
effective date of this Prospectus (the "lock-up period"), they will not offer
to sell, contract to sell or otherwise dispose of any shares of Common Stock,
including shares issuable under options or warrants exercisable during the 180
days after the date of this Prospectus, any options or warrants to purchase
shares of Common Stock or any securities convertible into or exchangeable for
shares of Common Stock owned directly by such holders or with respect to which
they have the power of disposition. Approximately 5,731,000 shares of Common
Stock subject to the lock-up agreements will become eligible for immediate
public sale following expiration of the lock-up period, subject to the
provisions of the Securities Act and the Rules promulgated thereunder.
Robertson, Stephens & Company LLC may, in its sole discretion, and at any time
without notice, release all or a portion of the
 
                                      57
<PAGE>
 
securities subject to the lock-up agreements. See "Shares Eligible for Future
Sale." In addition, the Company has agreed that until the expiration of the
lock-up period, the Company will not, without the prior written consent of
Robertson, Stephens & Company LLC, offer, sell, contract to sell or otherwise
dispose of any shares of Common Stock, any options or warrants to purchase
Common Stock or any securities convertible into or exchangeable for shares of
Common Stock, other than the Company's sales of shares in this Offering, the
issuance of shares of Common Stock upon the exercise of outstanding stock
options, and the grant of options to purchase shares or the issuance of shares
of Common Stock under the Company's 1997 Plan.
 
  The Representatives have advised the Company that, pursuant to Regulation M
under the Securities Act, certain persons participating in the Offering may
engage in transactions, including stabilizing bids, syndicate covering
transactions or the imposition of penalty bids which may have the effect of
stabilizing or maintaining the market price of the Common Stock at a level
above that which might otherwise prevail in the open market. A "stabilizing
bid" is a bid for or the purchase of the Common Stock on behalf of the
Underwriters for the purpose of fixing or maintaining the price of the Common
Stock. A "syndicate covering transaction" is the bid for or the purchase of
the Common Stock on behalf of the Underwriters in connection with the
Offering. The Underwriters may also cover all or a portion of such short
position, by exercising the Underwriters' over-allotment option referred to
above. A "penalty bid" is an arrangement permitting the Representatives to
reclaim the selling concession otherwise accruing to an Underwriter or
syndicate member in connection with the Offering if the Common Stock
originally sold by such Underwriter or syndicate member is purchased by the
Representatives in a syndicate covering transaction and has therefore not been
effectively placed by such Underwriter or syndicate member. The
Representatives have advised the Company that such transactions may be
effected on the Nasdaq National Market or otherwise and, if commenced, may be
discontinued at any time.
 
  The Representatives have advised the Company that they do not intend to
confirm sales to any accounts over which they exercise discretionary
authority.
 
  Prior to this Offering, there has been no public market for the Company's
securities. The initial public offering price of the Common Stock was
determined by negotiation among the Company, the Selling Shareholders and the
Representatives. Among the factors considered in such negotiations were
prevailing market conditions, the results of operations of the Company in
recent periods, market valuations of publicly traded companies that the
Company and the Representatives believe to be comparable to the Company,
estimates of the business potential of the Company, the present state of the
Company's development, the current state of the industry and the economy as a
whole, and any other factors deemed relevant.
 
                                      58
<PAGE>
 
                                 LEGAL MATTERS
 
  The validity of the Common Stock offered hereby will be passed upon for the
Company by Troy & Gould Professional Corporation, Los Angeles, California.
Certain legal matters with respect to this Offering will be passed upon for
the Underwriters by Jones, Day, Reavis & Pogue, Los Angeles, California. As of
the date of this Prospectus, Troy & Gould Professional Corporation and certain
of its members collectively own 52,500 shares of the Company's Common Stock.
 
                                    EXPERTS
 
  The consolidated financial statements included in this Prospectus and the
related financial statement schedule included elsewhere in the Registration
Statement have been audited by Deloitte & Touche LLP, independent auditors, as
stated in their reports appearing herein and elsewhere in the Registration
Statement, and have been so included in reliance upon the reports of such firm
given upon their authority as experts in accounting and auditing.
 
                            ADDITIONAL INFORMATION
 
  The Company has filed with the Commission in Washington, D.C., a
Registration Statement on Form S-1 under the Securities Act with respect to
the Common Stock being offered hereby. As permitted by the rules and
regulations of the Commission, this Prospectus does not contain all the
information set forth in the Registration Statement and the exhibits and
schedules thereto. For further information with respect to the Company and the
Common Stock offered hereby, reference is made to the Registration Statement,
and such exhibits and schedules. A copy of the Registration Statement, and the
exhibits and schedules thereto, may be inspected without charge at the public
reference facilities maintained by the Commission in Room 1024, 450 Fifth
Street N.W., Washington, D.C. 20549, and at the Commissions regional offices
located at the Northwestern Atrium Center, 500 West Madison Street, Chicago,
Illinois 60661 and Seven World Trade Center, 13th Floor, New York, New York
10048, and copies of all or any part of the Registration Statement may be
obtained from such offices upon payment of the fees prescribed by the
Commission. In addition, the Registration Statement may be accessed at the
Commission's site on the World Wide Web located at http://www.sec.gov.
Statements contained in this Prospectus as to the contents of any contract or
other document are not necessarily complete and, in each instance, reference
is made to the copy of such contract or document filed as an exhibit to the
Registration Statement, each such statement being qualified in all respects by
such reference.
 
                                      59
<PAGE>
 
                               OSI SYSTEMS, INC.
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                            PAGE
                                                                            ----
<S>                                                                         <C>
Report of Independent Auditors............................................  F-2
Consolidated Balance Sheets as of June 30, 1995, 1996, and March 31, 1997.  F-3
Consolidated Statements of Operations for the Years Ended June 30, 1994,
 1995 and 1996 and the Nine Months Ended March 31, 1996 (Unaudited) and
 1997.....................................................................  F-4
Consolidated Statements of Shareholders' Equity for the Years Ended June
 30, 1994, 1995 and 1996 and the Nine Months Ended March 31, 1997.........  F-5
Consolidated Statements of Cash Flows for the Years Ended June 30, 1994,
 1995 and 1996 and the Nine Months Ended March 31, 1996 (Unaudited) and
 1997.....................................................................  F-6
Notes to Consolidated Financial Statements................................  F-8
</TABLE>
 
                                      F-1
<PAGE>
 
                        REPORT OF INDEPENDENT AUDITORS
 
OSI Systems, Inc.:
 
  We have audited the accompanying consolidated balance sheets of OSI Systems,
Inc. (the "Company") and its subsidiaries as of March 31, 1997 and June 30,
1996 and 1995, and the related consolidated statements of operations,
shareholders' equity, and cash flows for the nine months ended March 31, 1997
and the years ended June 30, 1996, 1995 and 1994. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
 
  In our opinion, such consolidated financial statements present fairly, in
all material respects, the financial position of OSI Systems, Inc. and its
subsidiaries as of March 31, 1997 and June 30, 1996 and 1995, and the results
of their operations and their cash flows for the nine months ended March 31,
1997 and the years ended June 30, 1996, 1995 and 1994 in conformity with
generally accepted accounting principles.
 
Deloitte & Touche llp
 
Los Angeles, California
June 12, 1997
 
 
                                      F-2
<PAGE>
 
                       OSI SYSTEMS, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
 
                      (In thousands, except share amounts)
 
<TABLE>
<CAPTION>
                                                         JUNE 30,
                                                      --------------- MARCH 31,
                                                       1995    1996     1997
                                                      ------- ------- ---------
<S>                                                   <C>     <C>     <C>
                   ASSETS (NOTE 4)
Current Assets:
  Cash............................................... $ 1,405 $   581  $ 1,612
  Accounts receivable, net of allowance for doubtful
   accounts of $53, $276 and $294 at June 30, 1995,
   June 30, 1996 and March 31, 1997, respectively
   (Note 1)..........................................  12,841  13,295   15,450
  Other receivables (Note 2).........................     589     783    1,643
  Inventory (Note 1).................................  10,069  13,642   15,472
  Prepaid expenses...................................     388     633      665
  Deferred income taxes (Notes 1 and 7)..............     490     700    1,127
                                                      ------- -------  -------
    Total current assets.............................  25,782  29,634   35,969
                                                      ------- -------  -------
Property and Equipment, Net (Notes 1 and 4):.........   4,257   4,454    5,654
Intangible and Other Assets, Net (Notes 1, 2 and 3)..     741   1,221    2,691
                                                      ------- -------  -------
    Total............................................ $30,780 $35,309  $44,314
                                                      ======= =======  =======
        LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities:
  Bank lines of credit (Note 4)...................... $ 1,452 $ 7,783  $ 6,723
  Current portion of long-term debt (Note 6 and 13)..   1,232   1,491    1,601
  Current portion of senior subordinated debt (Note
   5)................................................           2,500
  Accounts payable...................................   6,402   6,522    7,665
  Accrued payroll and related expenses...............     960   1,667    1,587
  Income taxes payable...............................     147     799    1,759
  Advances from customers............................      36     219    2,733
  Other accrued expenses and current liabilities.....   3,436   2,609    3,961
                                                      ------- -------  -------
    Total current liabilities........................  13,665  23,590   26,029
Bank Line of Credit (Note 4).........................   4,829
Senior Subordinated Debt (Note 5)....................   3,075     575
Long-Term Debt (Note 6 and 13).......................   3,525   3,113    3,063
Deferred Income Taxes (Notes 1 and 7)................     629     827      240
Minority Interest (Note 1)...........................     106      10
                                                      ------- -------  -------
    Total liabilities................................  25,829  28,115   29,332
Commitments and Contingencies (Notes 8 and 13)
Shareholders' Equity (Notes 4, 5, 9 and 10):
  Preferred stock, voting shares, no par value;
   authorized, 3,000,000 shares; issued and
   outstanding, 1,318,750 shares at June 30, 1995 and
   1996 and 2,568,750 shares at March 31, 1997 (Note
   10)...............................................   1,514   1,514    4,014
  Common stock, no par value; authorized, 4,500,000
   shares; issued and outstanding, 1,842,007,
   1,858,132 and 2,207,124 shares at June 30, 1995
   and 1996 and March 31, 1997, respectively.........     543     560    2,913
  Retained earnings..................................   2,735   4,994    7,928
  Cumulative foreign currency translation adjustment
   (Note 1)..........................................     159     126      127
                                                      ------- -------  -------
    Total shareholders' equity.......................   4,951   7,194   14,982
                                                      ------- -------  -------
    Total............................................ $30,780 $35,309  $44,314
                                                      ======= =======  =======
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-3
<PAGE>
 
                       OSI SYSTEMS, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
               (In thousands, except share and per share amounts)
 
<TABLE>
<CAPTION>
                                                         NINE MONTHS ENDED 
                              YEAR ENDED JUNE 30,            MARCH 31,
                           -------------------------  ----------------------
                            1994    1995     1996        1996        1997
                           ------- ------- ---------  -----------  ---------
<S>                        <C>     <C>     <C>        <C>          <C>       
                                                      (Unaudited)
Revenues.................  $47,735 $49,815 $  61,518  $    44,994  $  55,973
Cost of goods sold.......   36,037  37,818    45,486       33,638     40,380
                           ------- ------- ---------  -----------  ---------
Gross profit.............   11,698  11,997    16,032       11,356     15,593
Operating expenses:
 Selling, general and
  administrative expenses
  (Note 11 and 12).......    7,974   7,601     9,757        6,745      8,183
 Research and development
  (Note 1)...............    1,451   1,591     1,663        1,280      1,737
 Stock option
  compensation (Note 9)..                                                856
                           ------- ------- ---------  -----------  ---------
Total operating expenses.    9,425   9,192    11,420        8,025     10,776
                           ------- ------- ---------  -----------  ---------
Income from operations...    2,273   2,805     4,612        3,331      4,817
Interest expense (Notes
 4, 5, 6 and 11).........      710   1,251     1,359        1,026        900
                           ------- ------- ---------  -----------  ---------
Income before provision
 for income taxes and
 minority interest.......    1,563   1,554     3,253        2,305      3,917
Provision for income
 taxes (Notes 1 and 7)...      814     413     1,111          787        983
                           ------- ------- ---------  -----------  ---------
Income before minority
 interest in net loss of
 subsidiaries............      749   1,141     2,142        1,518      2,934
Minority interest in net
 loss of subsidiaries
 (Note 1)................       38      17       117           28        --
                           ------- ------- ---------  -----------  ---------
Net income...............  $   787 $ 1,158 $   2,259  $     1,546  $   2,934
                           ======= ======= =========  ===========  =========
Historical net income....                  $   2,259  $     1,546  $   2,934
Interest on subordinated
 debt, net of income
 taxes...................                        166          125         92
Minority interest in net
 loss of subsidiaries....                       (117)         (28)       --
                                           ---------  -----------  ---------
Pro forma net income.....                  $   2,308  $     1,643  $   3,026
                                           =========  ===========  =========
Pro forma net income per
 share (Note 1)..........                  $    0.37  $      0.26  $    0.48
                                           =========  ===========  =========
Weighted average common
 shares used in the
 calculation of pro forma
 net income per share....                  6,308,126    6,304,158  6,327,234
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-4
<PAGE>
 
                       OSI SYSTEMS, INC. AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
                      (In thousands, except share amounts)
 
<TABLE>
<CAPTION>
                                                                     CUMULATIVE
                             PREFERRED          COMMON                 FOREIGN
                          ---------------- ----------------           CURRENCY
                          NUMBER OF        NUMBER OF        RETAINED TRANSLATION
                           SHARES   AMOUNT  SHARES   AMOUNT EARNINGS ADJUSTMENT   TOTAL
                          --------- ------ --------- ------ -------- ----------- -------
<S>                       <C>       <C>    <C>       <C>    <C>      <C>         <C>
BALANCE, JULY 1, 1993...  1,123,750 $1,124 1,628,257 $  335  $  790     $  6     $ 2,255
  Exercise of stock
   options..............        --     --     75,000     28     --       --           28
  Translation
   adjustment...........        --     --        --     --      --        58          58
  Net income............        --     --        --     --      787      --          787
                          --------- ------ --------- ------  ------     ----     -------
BALANCE, JUNE 30, 1994..  1,123,750  1,124 1,703,257    363   1,577       64       3,128
  Exercise of stock
   options..............     35,000     70    60,000     75     --       --          145
  Conversion of debt....    160,000    320    78,750    105     --       --          425
  Translation
   adjustment...........        --     --        --     --      --        95          95
  Net income............        --     --        --     --    1,158      --        1,158
                          --------- ------ --------- ------  ------     ----     -------
BALANCE, JUNE 30, 1995..  1,318,750  1,514 1,842,007    543   2,735      159       4,951
  Exercise of stock
   options..............        --     --     16,125     17     --       --           17
  Translation
   adjustment...........        --     --        --     --      --       (33)        (33)
  Net income............        --     --        --     --    2,259      --        2,259
                          --------- ------ --------- ------  ------     ----     -------
BALANCE, JUNE 30, 1996..  1,318,750  1,514 1,858,132    560   4,994      126       7,194
  Exercise of stock
   options..............        --     --     49,500     79     --       --           79
  Conversion of debt....  1,250,000  2,500   120,536    225     --       --        2,725
  Minority interest
   acquisitions.........        --     --    178,956  1,193     --       --        1,193
  Stock option
   compensation.........        --     --        --     856     --       --          856
  Translation
   adjustment...........        --     --        --     --      --         1           1
  Net income............        --     --        --     --    2,934      --        2,934
                          --------- ------ --------- ------  ------     ----     -------
BALANCE, MARCH 31, 1997.  2,568,750 $4,014 2,207,124 $2,913  $7,928     $127     $14,982
                          ========= ====== ========= ======  ======     ====     =======
</TABLE>
 
 
          See accompanying notes to consolidated financial statements.
 
                                      F-5
<PAGE>
 
                       OSI SYSTEMS, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)
 
<TABLE>   
<CAPTION>
                                                           NINE MONTHS ENDED
                                 YEAR ENDED JUNE 30,           MARCH 31,
                               -------------------------  -------------------
                                1994     1995     1996       1996      1997
                               -------  -------  -------  ----------- -------
                                                          (Unaudited)
<S>                            <C>      <C>      <C>      <C>         <C>
Cash flows from operating
 activities:
  Net income.................. $   787  $ 1,158  $ 2,259    $ 1,546   $ 2,934
  Adjustments to reconcile net
   income to net cash provided
   by (used in) operating
   activities:
   Minority interest in net
    loss of subsidiaries......     (38)     (17)    (117)       (28)
   Provision for losses on
    accounts receivable.......     150      (70)     404        346        97
   Depreciation and
    amortization..............   1,074    1,551    2,014      1,426     1,686
   Stock option compensation..                                            856
   Deferred income taxes......    (150)     240      (12)       --     (1,014)
   Gain on sale of property
    and equipment.............     (22)     (11)     (13)       --
   Changes in operating
    assets and liabilities,
    net of business
    acquisition:
     Accounts receivable......  (7,289)  (1,239)    (858)      (397)   (1,582)
     Other receivables........    (541)     226     (194)      (800)     (827)
     Inventory................  (2,059)  (2,599)  (4,068)    (4,113)   (1,444)
     Prepaid expenses.........      28     (139)    (245)      (253)      (32)
     Accounts payable.........   2,973      221      120      1,657       980
     Accrued payroll and
      related expenses........    (232)     191      707         36       (80)
     Income taxes payable.....     113     (217)     652        595       960
     Advances from customers..     (22)       9      183         (3)    1,771
     Other accrued expenses
      and current
      liabilities.............   3,470      (87)    (827)    (1,214)      806
                               -------  -------  -------    -------   -------
       Net cash provided by
        (used in) operating
        activities............  (1,758)    (783)       5     (1,202)    5,111
                               -------  -------  -------    -------   -------
Cash flows from investing
 activities:
  Proceeds from sale of
   property and equipment.....      70      142      120
  Additions to property and
   equipment..................  (1,459)  (1,396)  (1,612)    (1,287)   (1,530)
  Cash paid for business
   acquisition, net of cash
   acquired...................                                           (302)
  Cash paid for minority
   interest...................             (160)
  Other assets................     (14)    (662)    (688)      (273)      135
                               -------  -------  -------    -------   -------
       Net cash used in
        investing activities..  (1,403)  (2,076)  (2,180)    (1,560)   (1,697)
                               -------  -------  -------    -------   -------
Cash flows from financing
 activities:
  Net proceeds from (repayment
   of) bank lines of credit...   2,227    2,668    1,502      2,382    (1,363)
  Payments on senior
   subordinated debt..........             (700)                         (350)
  Payments on junior
   subordinated debt..........             (280)
  Payments on long-term debt..    (660)  (1,095)  (1,250)    (1,000)   (3,399)
  Proceeds from issuance of
   long-term debt.............   1,191    2,806    1,097        558     2,646
  Proceeds from exercise of
   stock options and warrants.      28      145       17         17        79
  Proceeds from issuance of
   minority interest..........       1                21         20
                               -------  -------  -------    -------   -------
       Net cash provided by
        (used in) financing
        activities............   2,787    3,544    1,387      1,977    (2,387)
                               -------  -------  -------    -------   -------
Effect of exchange rate
 changes on cash..............      58       95      (36)       --          4
                               -------  -------  -------    -------   -------
Net (decrease) increase in
 cash.........................    (316)     780     (824)      (785)    1,031
Cash, beginning of period.....     941      625    1,405      1,405       581
                               -------  -------  -------    -------   -------
Cash, end of period........... $   625  $ 1,405  $   581    $   620   $ 1,612
                               =======  =======  =======    =======   =======
Supplemental disclosures of
 cash flow information--Cash
 paid during the period for:
  Interest.................... $   691  $ 1,229  $ 1,346    $   992   $   902
  Income taxes................ $   620  $    82  $   377    $   368   $ 1,261
</TABLE>    
 
          See accompanying notes to consolidated financial statements.
 
                                      F-6
<PAGE>
 
- --------
SUPPLEMENTAL DISCLOSURES OF NONCASH INVESTING AND FINANCING ACTIVITIES:
 
  During 1995, certain related parties converted $105 and $320 of junior and
senior subordinated debt into 78,750 and 160,000 shares of common and
preferred stock, respectively.
 
  During 1995, the Company refinanced $1,244 in long-term debt obligations
through a new financing arrangement with a bank.
 
  During the nine months ended March 31, 1997, certain related parties
converted $225 and $2,500 of senior subordinated debt into 120,536 and
1,250,000 shares of common and preferred stock, respectively.
 
  During the nine months ended March 31, 1997, the Company acquired the
minority interest of its two majority-owned subsidiaries through the issuance
of 178,956 shares of common stock. The excess of the fair value of the common
stock of $1,193 over the book value of the minority interests of $12 has been
recorded as goodwill.
 
  In 1997, the Company acquired all of the capital stock of Advanced Micro
Electronics AS. In conjunction with the acquisition, liabilities were assumed
as follows:
<TABLE>
<CAPTION>
   <S>                                                                   <C>
   Fair value of assets acquired........................................ $2,350
   Goodwill.............................................................    588
   Cash paid for the capital stock......................................   (370)
   Liability incurred...................................................   (546)
                                                                         ------
   Liabilities assumed.................................................. $2,022
                                                                         ======
</TABLE>
 
 
         See accompanying notes to consolidated financial statements.
 
                                      F-7
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  General -- OSI Systems, Inc. (formerly Opto Sensors, Inc.) and its
subsidiaries (collectively, the "Company") is a vertically integrated,
worldwide provider of devices, subsystems and end-products based on
optoelectronic technology. The Company designs and manufactures optoelectronic
devices and value-added subsystems for original equipment manufacturers
("OEMs") in a broad range of applications, including security, medical
diagnostics, telecommunications, office automation, aerospace, computer
peripherals and industrial automation. In addition, the Company utilizes its
optoelectronic technology and design capabilities to manufacture security and
inspection products that it markets worldwide to end users under the
"Rapiscan" brand name. These products are used to inspect baggage, cargo and
other objects for weapons, explosives, drugs and other contraband.
 
  Consolidation -- The consolidated financial statements include the accounts
of OSI Systems, Inc. and its majority-owned subsidiaries. All significant
intercompany accounts and transactions have been eliminated in consolidation.
In September and November 1996 the Company purchased the minority interests of
its two majority-owned subsidiaries by exchanging 178,956 shares of common
stock for the minority shares of the subsidiaries. The excess of the fair
value of the common stock issued of $1,193,000 over the carrying value of the
minority interest of $12,000 has been recorded as goodwill and is being
amortized over a period of 20 years. The Company also agreed to issue
additional shares of the Company's common stock to the selling shareholders of
one of the subsidiaries. The number of shares, if any, to be issued is based
upon the net income of the subsidiary for the year ended June 30, 1997, not to
exceed 45,486 shares.
 
  Unaudited Interim Financial Information -- The accompanying consolidated
statements of income and of cash flows for the nine months ended March 31,
1996 have been prepared in accordance with generally accepted accounting
principles for interim periods and are unaudited; however, in management's
opinion, they include all adjustments (consisting of only normal recurring
adjustments) necessary for a fair presentation of results for such interim
periods.
 
  Concentrations of Credit Risk -- The Company's financial instruments that
are exposed to credit risk consist primarily of accounts receivable. The
Company performs ongoing credit evaluations of its customers' financial
condition and provides an allowance for potential credit losses. The
concentration of credit risk is generally diversified due to the large number
of entities comprising the Company's customer base and their geographic
dispersion.
 
  Inventory -- Inventory is stated at the lower of cost or market; cost is
determined on the first-in, first-out method.
 
  Inventory at June 30, 1995 and 1996 and March 31, 1997 consisted of the
following (in thousands):
 
<TABLE>
<CAPTION>
                                                          JUNE 30,
                                                       --------------- MARCH 31,
                                                        1995    1996     1997
                                                       ------- ------- ---------
   <S>                                                 <C>     <C>     <C>
   Raw materials...................................... $ 5,004 $ 7,795  $ 9,122
   Work-in-process....................................   2,597   3,114    4,300
   Finished goods.....................................   2,468   2,733    2,050
                                                       ------- -------  -------
     Total............................................ $10,069 $13,642  $15,472
                                                       ======= =======  =======
</TABLE>
 
                                      F-8
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  Property and Equipment -- Property and equipment are stated at cost.
Depreciation and amortization are computed using the straight-line and
accelerated methods over lives ranging from three to ten years. Amortization
of leasehold improvements is calculated on the straight-line basis over the
shorter of the useful life of the asset or the lease term.
 
  Property and equipment at June 30, 1995 and 1996 and March 31, 1997
consisted of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                           JUNE 30,
                                                        -------------- MARCH 31,
                                                         1995   1996     1997
                                                        ------ ------- ---------
   <S>                                                  <C>    <C>     <C>
   Equipment........................................... $5,247 $ 6,280  $ 7,438
   Leasehold improvements..............................  1,426   1,601    1,963
   Tooling.............................................  1,397   1,558    1,775
   Furniture and fixtures..............................    626     488      570
   Computer equipment..................................  1,025   1,283    1,639
   Vehicles............................................    122      93      152
                                                        ------ -------  -------
     Total.............................................  9,843  11,303   13,537
   Less accumulated depreciation and amortization......  5,586   6,849    7,883
                                                        ------ -------  -------
   Property and equipment, net......................... $4,257 $ 4,454  $ 5,654
                                                        ====== =======  =======
</TABLE>
 
  Intangibles and Other Assets -- Intangible and other assets at June 30, 1995
and 1996 and March 31, 1997 consisted of the following (in thousands):
<TABLE>
<CAPTION>
                                                            JUNE 30,
                                                           ----------- MARCH 31,
                                                           1995  1996    1997
                                                           ---- ------ ---------
   <S>                                                     <C>  <C>    <C>
   Software development costs............................. $494 $  588  $  588
   Goodwill...............................................  --     --    1,769
   Deposits...............................................  168    262     227
   Other..................................................  111    524     426
                                                           ---- ------  ------
     Total................................................  773  1,374   3,010
   Less accumulated amortization..........................   32    153     319
                                                           ---- ------  ------
   Intangible and other assets, net....................... $741 $1,221  $2,691
                                                           ==== ======  ======
</TABLE>
 
  Goodwill in the amount of $1,181,000 resulting from the acquisition of
minority interests and $588,000 resulting from the acquisition of Advanced
Micro Electronics AS (see Note 3) is being amortized, on a straight-line
basis, over a period of twenty years.
 
  Software development costs incurred in the research and development of
software products are expensed as incurred until the technological feasibility
of the product has been established. After technological feasibility is
established, certain software development costs are capitalized. The software,
once developed, is a component which is included in X-ray security machines
when they are sold to customers. The Company amortizes these costs on a
straight-line basis over a two-year period. No software development costs were
capitalized during the nine months ended March 31, 1997.
 
  Impairment of Long-Lived Assets -- The Company reviews long-lived assets,
including goodwill, for impairment whenever events or changes in circumstances
indicate that the carrying amount of the asset may not be recoverable. If the
sum of the expected future cash flows, undiscounted and without interest
charges, is less than the carrying amount of the asset, the Company recognizes
an impairment loss based on the estimated fair value of the asset.
 
 
                                      F-9
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

  Income Taxes -- Deferred income taxes are provided for temporary differences
between the financial statement and income tax bases of the Company's assets
and liabilities, based on enacted tax rates. A valuation allowance is provided
when it is more likely than not that some portion or all of the deferred
income tax assets will not be realized.
 
  Fair Value of Financial Instruments -- The Company's financial instruments
consist primarily of cash accounts receivable, accounts payable, and debt
instruments. The carrying values of financial instruments other than debt
instruments, are representative of their fair values due to their short-term
maturities. The carrying values of the Company's long-term debt instruments
are considered to approximate their fair values because the interest rates of
these instruments are variable or comparable to current rates offered to the
Company. The fair value of the Company's senior subordinated debt cannot be
determined due to the related-party nature of the obligations.
   
  Revenue Recognition-- The Company recognizes revenue upon shipment of its
                        product.     
 
  Foreign Currency Translation -- The accounts of the Company's operations in
Singapore, Malaysia, Norway and the United Kingdom are maintained in Singapore
dollars, Malaysian ringgits, Norwegian Krone and U.K. pounds sterling,
respectively. Foreign currency financial statements are translated into U.S.
dollars at current rates, with the exception of revenues, costs and expenses,
which are translated at average rates during the reporting period. Gains and
losses resulting from foreign currency transactions are included in income,
while those resulting from translation of financial statements are excluded
from income and accumulated as a component of shareholders' equity.
Transaction (losses) gains of approximately ($19,000), $76,000, ($123,000),
($21,000), and $9,000 were included in income for the years ended June 30,
1994, 1995, and 1996 and for the nine months ended March 31, 1996, (unaudited)
and 1997, respectively.
 
  Earnings Per Share -- Historical net income per share is not presented
because it is not indicative of the ongoing operations of the Company. Pro
forma net income and net income per share has been presented to reflect the
effect of the conversion of certain subordinated debt into preferred stock and
the subsequent conversion of the preferred stock into shares of the Company's
common stock (see Notes 5 and 10).
 
  Pro forma earnings per share information is computed using the weighted
average number of shares of common stock outstanding and dilutive common
equivalent shares from convertible debt and stock options using the treasury
stock method. Pursuant to Securities and Exchange Commission Staff Accounting
Bulletin Topic 4D, common stock and stock options issued or granted during the
twelve month period prior to the date of the initial filing of the Company's
Form S-1 Registration Statement have been included in the calculation of the
pro forma weighted average number of common and common equivalent shares using
the treasury stock method as if they were outstanding for each period for
which pro forma earnings per share is presented.
 
  Recently Issued Accounting Pronouncements -- In February 1997, the Financial
Accounting Standards Board issued Statement of Financial Accounting Standards
("SFAS") No. 128 "Earnings Per Share". The statement is effective for interim
periods and fiscal years ending after December 15, 1997. The Company does not
expect that the statement will have a material effect on the Company's
consolidated financial statements.
 
  Use of Estimates -- The preparation of financial statements in conformity
with generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.
 
                                     F-10
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
2. INVESTMENT IN JOINT VENTURE
 
  In January 1995, the Company, together with an unrelated company, formed
ECIL-Rapiscan Security Products Limited, a joint venture organized under the
laws of India. The Company, the Company's chairman and the Company's chief
financial officer have a 36.0%, 10.5% and 4.5% ownership interest,
respectively, in the joint venture. The Company's investment of approximately
$108,000 at March 31, 1997 is included in other assets in the accompanying
financial statements and the Company's equity in the earnings of the joint
venture, since its inception, have been insignificant.
 
  The joint venture was formed for the purpose of the manufacture, assembly,
service and testing of X-ray security and other products. One of the Company's
subsidiaries is a supplier to the joint venture partner, who in turn
manufactures and sells the resulting products to the joint venture utilizing
technology received from the subsidiary. The agreement provides for technology
transfer between the Company and the joint venture, subject to certain
restrictions.
 
  During the year ended June 30, 1995 and the nine months ended March 31,
1997, the Company earned a technical fee from the joint venture in the amount
of $200,000 and $115,000, respectively. At March 31, 1997, $100,000 was unpaid
and included in other receivables in the accompanying consolidated financial
statements.
 
3. ACQUISITIONS
 
  On March 3, 1997, the Company acquired the capital stock of Advanced Micro
Electronics AS ("AME") headquartered in Horten, Norway, from Industriinvestor
ASA. The purchase price of $916,000 consisted of cash of $370,000 with the
balance of $546,000 payable by June 15, 1997. The acquisition has been
accounted for by the purchase method of accounting, and accordingly, the
purchase price has been allocated to the assets acquired of $2,350,000, and
liabilities assumed of $2,022,000, based on the estimated fair values of the
assets and liabilities at the date of acquisition. The excess of the purchase
price over the fair value of net assets acquired is being amortized over a
period of 20 years.
 
  The results of operations of AME are included in the Company's consolidated
financial statements from the date of acquisition. Had the acquisition
occurred as of July 1, 1993, pro forma consolidated sales for the years ended
June 30, 1994, 1995 and 1996 and for the nine months ended March 31, 1996
(unaudited) and 1997 would have been $50,735,000, $53,338,000, $65,371,000,
$47,827,000 and $58,557,000, respectively. Consolidated pro forma net income
and net income per share would not have been materially different than the
amounts reported for the respective periods.
 
4. BANK AGREEMENTS
 
  At June 30, 1995 and 1996 and March 31, 1997, line of credit borrowings
consisted of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                           JUNE 30,
                                                         ------------- MARCH 31,
                                                          1995   1996    1997
                                                         ------ ------ ---------
   <S>                                                   <C>    <C>    <C>
   Line of credit -- U.S................................ $4,829 $6,361  $4,927
   Line of credit -- Singapore..........................  1,452  1,422   1,442
   Line of credit -- Norway.............................                   354
                                                         ------ ------  ------
     Total bank lines of credit......................... $6,281 $7,783  $6,723
                                                         ====== ======  ======
</TABLE>
 
                                     F-11
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  The Company maintains a senior loan agreement with a U.S. bank, which
provides for a $10,000,000 revolving line of credit, a $2,500,000 term loan, a
$1,000,000 equipment line and a $1,500,000 stock purchase facility (see Note
6). Total borrowings under the agreement are not to exceed $15,000,000.
Borrowings under the line of credit bear interest at the bank's prime rate
(8.5% at March 31, 1997) plus .25% or, at the Company's option, at 2.25% above
the LIBOR rate for specific advances and terms. Interest is payable monthly,
and the line expires in November 1998. Borrowings under the senior loan
agreement are collateralized by substantially all of the assets of the
Company. The agreement also provides a commitment for letters of credit up to
$10,000,000 not to exceed the available balance under the line of credit. At
March 31, 1997 approximately $154,000 was issued and outstanding under letters
of credit.
 
  Covenants in connection with the agreement impose restrictions and
requirements related to, among other things, maintenance of certain financial
ratios, limitations on outside indebtedness, rental expense and capital
expenditures.
 
  The Company has a credit agreement with a U.S. bank, which provides for a
$5,000,000 revolving line of credit and a $4,000,000 letter of credit sub-
facility. Total borrowings under the agreement may not exceed $5,000,000.
Borrowings under the line of credit bear interest at the bank's prime rate
(8.5% at March 31, 1997) plus .25%. Interest is payable monthly, and the line
expires in October 1997. Borrowings under the current agreement are secured by
certain of the Company's assets. No amounts were outstanding under this
agreement at March 31, 1997. The agreement also provides a commitment for
letters of credit up to $5,000,000. At March 31, 1997 approximately $1,997,000
was issued and outstanding under letters of credit.
 
  Covenants in connection with the agreement impose restrictions and
requirements related to, among other things, maintenance of certain financial
ratios, limitations on outside indebtedness, profitability, and capital
expenditures.
 
  Opto Sensors Pte. Ltd. ("OSP") has a loan agreement with a Singapore bank,
which provides for revolving line of credit borrowings up to 2,600,000
Singapore dollars (approximately $1,800,000 at March 31, 1997). The agreement
also has a term note feature providing for borrowings up to approximately
$300,000 (see Note 6). Borrowings under the line of credit bear interest at
the bank's prime rate (8.5% at March 31, 1997) plus 1.5%. Interest is payable
monthly, and borrowings are due on demand. Borrowings under the line of credit
are collateralized by certain OSP assets and are guaranteed by the Company and
certain officers of the Company.
 
  AME has a loan agreement with a Norwegian bank, which provides for revolving
line of credit borrowings up to 5,000,000 Norwegian Krone (approximately
$741,000 at March 31, 1997). Borrowings under the line of credit bear interest
at a variable rate, which was 6.65% at March 31, 1997. Interest is payable
quarterly. The loan agreement has no expiration date. Borrowings under the
line of credit are collateralized by certain AME assets.
 
  A subsidiary has loan agreements with a U.K. bank, which provide for
overdraft borrowings of up to 1,250,000 pound sterling (approximately
$2,050,000 at March 31, 1997), line of credit borrowings up to 750,000 pound
sterling (approximately $1,230,000 at March 31, 1997) and a 500,000 pound
sterling (approximately $820,000 at March 31, 1997) borrowing facility for
tender and performance bonds. Borrowings under the overdraft facility bear
interest at a base rate (6.0% at March 31, 1997) plus 2%. Borrowings under the
line of credit bear interest at the base rate plus 1.85%. Interest is payable
monthly. Borrowings under this agreement are secured by certain assets of the
subsidiary and are guaranteed by the Company. Approximately $134,000 was
outstanding under performance bonds at March 31, 1997.
 
                                     F-12
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  A subsidiary has a loan agreement with a Malaysian bank, which provides for
revolving line of credit borrowings up to 2,500,000 Malaysian ringgits
(approximately $1,000,000 at March 31, 1997) for performance bonds and standby
letter of credits. This line expires in October 1997. No amounts were
outstanding under this agreement at March 31, 1997.
 
5. SENIOR SUBORDINATED DEBT
 
  The Company has issued convertible notes payable to non affiliates and
certain related parties. Under the terms of the various agreements, certain
debt contained nondetachable warrants to convert the related debt into shares
of the Company's preferred stock at $2.00 per share. Certain other notes
provided for the conversion of the debt into shares of the Company's preferred
stock at $2.80 per share at the option of the holder. The remaining debt, at
the option of the holder, provided for conversion of the debt into shares of
the Company's common stock at $1.87 per share. During the nine months ended
March 31, 1997, all of the debt outstanding under the various agreements was
repaid or converted as summarized in the following table (in thousands):
 
<TABLE>
<CAPTION>
                                                          JUNE 30,
                                                        ------------- MARCH 31,
                                                         1995   1996    1997
                                                        ------ ------ ---------
<S>                                                     <C>    <C>    <C>
Convertible note payable to a related party, interest
 due quarterly at a bank's prime rate (8.25% at June
 30, 1996) plus 1.5%, principal due on April 24, 1997
 converted into 1,250,000 shares of preferred stock on
 November 27, 1996....................................  $2,500 $2,500   $--
Convertible notes payable, (including $50,000 to a
 related party) interest due quarterly at a
 bank'sprime rate (8.25% at June 30, 1996) plus 1.5%,
 principal due on February 19, 1998, paid in full as
 of October 28, 1996..................................     350    350    --
Convertible notes payable to directors, interest due
 quarterly at a bank's prime rate (8.25% at June 30,
 1996) plus 1.5%, principal due on February 19, 1998,
 converted into 26,786 shares of common stock on
 October 31, 1996.....................................      50     50    --
Convertible notes payable, interest due quarterly at a
 bank's prime rate (8.25% at June 30, 1996) plus 1.5%,
 principal due on February 19, 1998 converted into
 93,750 shares of common stock on October 31, 1996....     175    175    --
                                                        ------ ------   ----
Total senior subordinated debt........................   3,075  3,075    --
Less current portion..................................     --   2,500    --
                                                        ------ ------   ----
Total long-term portion...............................  $3,075 $  575   $--
                                                        ====== ======   ====
</TABLE>
 
                                     F-13
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
6. LONG-TERM DEBT
 
  At June 30, 1995 and 1996 and March 31, 1997, long-term debt consisted of
the following (in thousands):
 
<TABLE>
<CAPTION>
                                                          JUNE 30,
                                                        ------------- MARCH 31,
                                                         1995   1996    1997
                                                        ------ ------ ---------
<S>                                                     <C>    <C>    <C>
Term loan payable to a bank, interest due monthly at
 the bank's prime rate (8.25% at June 30, 1996) plus
 0.25%, principal due in monthly installments of
 $52,083. The term loan was repaid in January 1997....  $2,240 $1,667     --
Term loan payable to a bank, interest due mothly at
 the bank's prime rate (8.25% at June 30, 1996) plus
 0.25%, principal due in equal monthly installments of
 $16,666. The term loan was repaid in January 1997....     950    750     --
Equipment line note payable to a bank, interest due
 monthly at the bank's prime rate (8.25% at June 30,
 1996) plus 0.25%, principal due in monthly
 installments of $11,623. The term loan was repaid in
 January 1997.........................................     --     511     --
Term loan payable to a bank, interest due monthly at
 the bank's prime rate (8.5% at March 31, 1997) plus
 0.50%, principal due in monthly installments of
 $52,083 until paid in full on March 31, 2001.........     --     --   $2,500
Term loan payable to a Norwegian bank, interest due
 quarterly at a rate of 5.75% principal due in monthly
 installments of $12,148 until paid in full on June 1,
 2001.................................................     --     --      504
Term loan payable, interest accrued monthly at 8.00%,
 paid in full on April 2, 1997........................     --     --      296
Term loan payable to a bank, interest due monthly at
 the bank's prime rate (8.5% at March 31, 1997) plus
 2.25%, principal due in monthly installments of
 $8,333 until paid in full on November 30, 1997.......     242    141      62
Liability under settlement agreements, interest
 computed at the 52 week treasury bill rate (5.66% at
 March 31, 1997), principal due $300,000 in 1998, and
 $400,000 in 1999.....................................   1,300  1,000     700
Other.................................................      25    535     602
                                                        ------ ------  ------
                                                         4,757  4,604   4,664
Less current portion of long-term debt................   1,232  1,491   1,601
                                                        ------ ------  ------
Long-term portion of debt.............................  $3,525 $3,113  $3,063
                                                        ====== ======  ======
</TABLE>
 
  Fiscal year principal payments of long-term debt as of March 31, 1997 are as
follows (in thousands):
 
<TABLE>
   <S>                                                                    <C>
   1997 (3 months)....................................................... $  555
   1998..................................................................  1,278
   1999..................................................................  1,317
   2000..................................................................    896
   2001..................................................................    618
                                                                          ------
     Total............................................................... $4,664
                                                                          ======
</TABLE>
 
                                     F-14
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
7. INCOME TAXES
 
  For financial reporting purposes, income before provision for income taxes
and minority interest includes the following components (in thousands):
 
<TABLE>
<CAPTION>
                                                              NINE MONTHS ENDED
                                         YEAR ENDED JUNE 30,      MARCH 31,
                                         -------------------- ------------------
                                          1994   1995   1996     1996      1997
                                         ------ ------ ------ ----------- ------
                                                              (Unaudited)
   <S>                                   <C>    <C>    <C>    <C>         <C>
   Pretax income:
     United States...................... $  547 $1,277 $1,965   $1,053    $1,904
     Foreign............................  1,016    277  1,288    1,252     2,013
                                         ------ ------ ------   ------    ------
       Total pretax income.............. $1,563 $1,554 $3,253   $2,305    $3,917
                                         ====== ====== ======   ======    ======
</TABLE>
 
  The Company's provision for income taxes is comprised of the following (in
thousands):
 
<TABLE>
<CAPTION>
                                                             NINE MONTHS ENDED
                                        YEAR ENDED JUNE 30,      MARCH 31,
                                        ------------------  -------------------
                                        1994   1995  1996      1996      1997
                                        -----  ---- ------  ----------- -------
                                                            (Unaudited)
   <S>                                  <C>    <C>  <C>     <C>         <C>
   Current:
     Federal........................... $ 487  $ 43 $  510     $364     $ 1,286
     State.............................   139     3     21       16          54
     Foreign...........................   338   127    592      407         657
                                        -----  ---- ------     ----     -------
                                          964   173  1,123      787       1,997
   Deferred............................  (150)  240    (12)     --       (1,014)
                                        -----  ---- ------     ----     -------
       Total provision................. $ 814  $413 $1,111     $787     $   983
                                        =====  ==== ======     ====     =======
</TABLE>
 
  Deferred income tax assets (liabilities) at June 30, 1995 and 1996 and March
31, 1997 consisted of the following (in thousands):
 
<TABLE>
<CAPTION>
                                                         JUNE 30,
                                                       --------------  MARCH 31,
                                                       1995    1996      1997
                                                       -----  -------  ---------
   <S>                                                 <C>    <C>      <C>
   Expenses not currently deductible.................. $ 518  $   873   $ 1,491
   State income taxes.................................    49      --        --
   Other..............................................   143      --        411
                                                       -----  -------   -------
     Total deferred income tax assets.................   710      873     1,902
                                                       -----  -------   -------
   Depreciation.......................................  (309)    (145)      (82)
   Capitalized software development costs.............  (158)    (214)     (154)
   State income taxes.................................           (173)     (365)
   Revitalization zone deductions.....................  (182)    (278)     (354)
   Other..............................................  (200)    (190)      (60)
                                                       -----  -------   -------
     Total deferred income tax liabilities............  (849)  (1,000)   (1,015)
                                                       -----  -------   -------
   Net deferred income taxes.......................... $(139) $  (127)  $   887
                                                       =====  =======   =======
</TABLE>
 
                                     F-15
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  The consolidated effective income tax rate differs from the federal
statutory income tax rate due primarily to the following:
 
<TABLE>   
<CAPTION>
                                    YEAR ENDED         NINE MONTHS ENDED
                                     JUNE 30,              MARCH 31,
                                  ------------------   -----------------------
                                  1994   1995   1996       1996       1997
                                  ----   ----   ----   ------------   --------
                                                       (Unaudited)
   <S>                            <C>    <C>    <C>    <C>            <C>
   Provision for income taxes at
    federal statutory rate....... 35.0 % 35.0 % 35.0 %        35.0 %      35.0 %
   State income taxes (credits),
    net of federal benefit.......  1.3   (2.6)   0.2           0.2        (5.2)
   Nontaxable earnings of FSC.... (3.8)  (7.1)  (5.7)         (5.7)       (5.8)
   Research and development tax
    credits......................  --    (2.8)   --            --         (2.3)
   Foreign income subject to tax
    at other than federal
    statutory rate...............  3.2    0.7    1.1           1.1         0.2
   Government settlement......... 16.8    --     --            --          --
   Other......................... (0.4)   3.4    3.6           3.6         3.2
                                  ----   ----   ----      --------    --------
   Effective income tax rate..... 52.1 % 26.6 % 34.2 %        34.2 %      25.1 %
                                  ====   ====   ====      ========    ========
</TABLE>    
 
  The Company does not provide for U.S. income taxes on the undistributed
earnings of the foreign subsidiaries as it is the Company's intention to
utilize those earnings in the foreign operations for an indefinite period of
time. At March 31, 1997 undistributed earnings of the foreign subsidiaries
amounted to $3,022,000. It is not practicable to determine the amount of
income or withholding tax that would be payable upon the remittance of those
earnings.
 
8. COMMITMENTS AND CONTINGENCIES
 
  The Company leases its production and office facilities and certain
equipment under various operating leases. Most of these leases provide for
increases in rents based on the Consumer Price Index and include renewal
options ranging from two to ten years. The lease for the production and office
facilities in Hawthorne, California expires in 2005, and the Company is
currently considering exercising its option to purchase the facilities for
approximately $3,000,000. Future minimum lease payments under such leases as
of March 31, 1997 are as follows: (3 months) 1997, $280,000; 1998, $1,046,000;
1999, $826,000; 2000, $684,000; 2001, $658,000; 2002, $401,000; and
thereafter, $2,561,000. Total rent expense included in the accompanying
consolidated financial statements was $825,000, $959,000, $901,000, $725,000,
and $670,000 for the years ended June 30, 1994, 1995, and 1996 and the nine
months ended March 31, 1996 (unaudited) and 1997, respectively.
 
  The Company is involved in various claims and legal proceedings arising out
of the conduct of its business, principally related to patent rights and
related licensing issues. The principal litigation involves claims that
certain technology used in the Company's scanners infringes on certain
existing patents and seeks damages in an unspecified amount and an injunction
barring the Company from making, using, selling or offering for sale certain
of its security and inspection products in the United States. The Company has
alleged that its security products do not infringe the patents, and that the
plaintiffs in the suit had previously granted the Company the right to market
its security and inspection products. In the event it is determined that the
Company's products infringe upon the rights of the plaintiffs and that the
Company does not have the right to use the technology in its products, the
Company could be prevented from marketing most of its security and inspection
products in the United States and could be required to pay a significant
amount of damages.
 
  Additional litigation involves claims that the Company interfered with pre-
existing contractual rights of the plaintiff, who is claiming breach of
contract and interference with contract, and is seeking compensatory damages
of an indeterminate amount, as well as punitive damages and attorneys' fees.
The Company has filed
 
                                     F-16
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

a cross-complaint claiming breach of contract and misrepresentation and seeks
recovery for intentional interference with contractual relations, intentional
interference with prospective economic advantage, slander per se, trade libel,
and breach of written agreement. The Company has been informed by its counsel
that the Company will be able to defend the lawsuit without any liability to
the Company.
   
  An estimate of loss or range of loss cannot be made at this time, however,
management of the Company believes that the resolution of the above noted
litigation and other legal proceedings will not have a material adverse effect
on the Company's consolidated financial statements.     
 
9. STOCK OPTIONS
 
  The Company has two stock option plans. Under the 1987 plan, 1,050,000
shares of common stock have been reserved for the issuance of incentive stock
options to key employees, directors and officers of the Company. The price,
terms and conditions of each issuance are determined by the Board of
Directors.
   
  The 1997 plan was established in May 1997 and authorizes the grant of up to
850,000 shares of the Company's common stock in the form of incentive and
nonqualified options. Employees, officers and directors are eligible under
this plan, which is administered by the Board of Directors who determine the
terms and conditions of each grant. The exercise price of nonqualified options
may not be less than 85% of the fair market value of the Company's common
stock at the date of grant. The exercise price of incentive stock options may
not be less than the fair market value of the Company's common stock at the
date of grant. The exercise price of incentive stock options granted to
individuals that own greater than ten percent of the Company's voting stock
may not be less than 110% of the fair market value of the Company's common
stock at the date of grant.     
 
  Exercise periods for incentive and nonqualified options granted under this
plan may not exceed ten years from the grant date.
 
  In November and December 1996, the Company granted stock options for the
purchase of 235,125 shares of the Company's common stock to certain employees
at prices below the $6.67 estimated fair market value at the date grant. The
options were accelerated to vest immediately and accordingly, the Company has
recorded compensation expense for the nine months ended March 31, 1997,
representing the excess of the fair value of the Company's common stock at the
date of grant over the option exercise price.
 
                                     F-17
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  The following summarizes stock option activity for the years ended June 30,
1994, 1995 and 1996 and for the nine months ended March 31, 1997:
 
<TABLE>
<CAPTION>
                                                               OPTION PRICE
                                                   NUMBER   -------------------
                                                     OF     WEIGHTED
                                                   OPTIONS  AVERAGE    TOTAL
                                                   -------  -------- ----------
   <S>                                             <C>      <C>      <C>
   Outstanding, July 1, 1993...................... 355,125   $1.10   $  390,000
   Granted........................................  37,500    2.33       88,000
   Exercised...................................... (75,000)   0.37      (28,000)
   Canceled.......................................  (9,750)   1.03      (10,000)
                                                   -------           ----------
   Outstanding, July 1, 1994...................... 307,875    1.43      440,000
   Granted........................................  69,000    2.00      138,000
   Exercised...................................... (60,000)   1.25      (75,000)
   Canceled....................................... (19,500)   1.77      (34,000)
                                                   -------           ----------
   Outstanding, July 1, 1995...................... 297,375    1.57      469,000
   Granted........................................  51,000    2.17      111,000
   Exercised...................................... (16,125)   1.06      (17,000)
   Canceled....................................... (13,500)   1.60      (22,000)
                                                   -------           ----------
   Outstanding, June 30, 1996..................... 318,375    1.70      541,000
   Granted........................................ 235,125    2.98      701,000
   Exercised...................................... (49,500)   1.60      (79,000)
   Canceled.......................................  (5,250)   2.00      (10,000)
                                                   -------           ----------
   Outstanding, March 31, 1997.................... 499,125   $2.31   $1,153,000
                                                   =======           ==========
</TABLE>
 
  The following summarizes pricing and term information for options
outstanding as of March 31, 1997:
 
<TABLE>
<CAPTION>
                                   OPTIONS OUTSTANDING              OPTIONS EXERCISABLE
                         ---------------------------------------- -----------------------
                                                         WEIGHTED                WEIGHTED
                             NUMBER     WEIGHTED AVERAGE AVERAGE                 AVERAGE
  RANGE OF               OUTSTANDING AT    REMAINING     EXERCISE EXERCISABLE AT EXERCISE
EXERCISE PRICES          MARCH 31, 1997 CONTRACTUAL LIFE  PRICE   MARCH 31, 1997  PRICE
- ---------------          -------------- ---------------- -------- -------------- --------
<S>                      <C>            <C>              <C>      <C>            <C>
$0.17 to 0.67...........     58,500        0.8 years      $0.45       58,500      $0.45
 1.87 to 2.00...........    150,750        2.3             1.95      118,688       1.94
 2.33 to 3.33...........    289,875        4.1             2.87      272,625       2.89
                            -------                                  -------
$0.17 to 3.33...........    499,125        3.2            $2.31      449,813      $2.32
                            =======                                  =======
</TABLE>
 
  The Company has adopted the disclosure-only provisions of SFAS 123,
"Accounting for Stock-Based Compensation." The estimated fair value of options
granted during 1996 and for the nine months ended March 31, 1997 pursuant to
SFAS 123 was approximately $19,000 and $1,045,000, respectively. Had the
Company adopted SFAS 123, pro forma net income would have been $2,297,000 and
$2,913,000, and pro forma net income per share would have been $0.36 and $0.46
for 1996 and for the nine months ended March 31, 1997, respectively. The fair
value of each option grant was estimated using the Black-Scholes option-
pricing model with the following weighted average assumptions: dividend yield
and volatility of zero, a risk free interest rate of 6.28% and expected option
lives of 5 years.
 
10. STOCKHOLDERS' EQUITY
 
  In May 1997, the Company's Board of Directors authorized a 1.5 for 1 stock
split of the outstanding common stock. All share and per share numbers have
been adjusted to retroactively reflect the common stock split.
 
                                     F-18
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
  Preferred stock is entitled to the same one vote per share as common stock
and has a liquidation preference of $1.00 per preferred share.
 
  In June 1997 holders of the preferred stock converted each preferred share
into 1.5 shares of common stock.
 
  In connection with the acquisition of the minority interest of a subsidiary
in November 1996 (see Note 1), the Company granted the selling shareholders
options to purchase 45,486 shares of the Company's common stock at $11.50 per
share. The options vest over four years from the date of grant. If the Company
does not successfully complete an underwritten public offering of its common
stock by December 31, 1997, the options revert back to the Company.
 
11. RELATED PARTY TRANSACTIONS
 
  The Company contracts with entities affiliated by common ownership to
provide messenger service and auto rental and printing services. The Company
also contracts for professional services from a firm that has a partner
serving as a member of the Company's Board of Directors. Included in selling,
general and administrative expenses for the years ended June 30, 1994, 1995,
and 1996 and for the nine months ended March 31, 1996 (unaudited) and 1997 are
approximately $61,000, $77,000, $83,000, $65,000, and $87,000 for messenger
service and auto rental; $68,000, $78,000, $63,000, $42,000 and $64,000 for
printing services; and $10,000, $23,000, $7,000, $7,000 and $3,000 for
professional services, respectively. During the nine months ended March 31,
1997, the Company paid a one time consulting fee amounting to $100,000 to an
entity that is a shareholder of the Company.
 
  Shareholders and other parties related to the Company have made loans to the
Company under agreements subordinating such loans to the Company's bank
borrowings (see Notes 4, 5 and 6). Interest expense related to such borrowings
was approximately $302,000, $315,000, $263,000, $197,000 and $146,000 for the
years ended June 30, 1994, 1995, 1996 and the nine months ended March 31, 1996
(unaudited) and 1997, respectively.
 
12. GOVERNMENT SETTLEMENT
 
  During 1994, a subsidiary of the Company was notified that the U.S.
Department of Justice was conducting an investigation regarding the testing of
certain products that were sold by a subsidiary under government contracts. A
settlement of $1,500,000 was agreed to, and was accrued and included in
selling, general and administrative expense in the accompanying statement of
operations for the year ended June 30, 1994. The settlement is being paid in
five increasing installments, with the unpaid principal balance bearing
interest at the 52-week Treasury bill rate. At March 31, 1997, the unpaid
balance of this settlement was $700,000 (see Note 6).
 
13. EMPLOYEE BENEFIT PLANS
 
  OSI Systems, Inc. has a qualified employee retirement savings plan. The plan
provides for a contribution by the Company, which is determined annually by
the Board of Directors. In addition, the plan permits voluntary salary
reduction contributions by employees. The Company made no contributions to the
plan for the nine months ended March 31, 1997 and 1996 (unaudited) or for the
years ended June 30, 1996, 1995 and 1994. During 1995, a subsidiary in the
U.K. ("Rapiscan") transferred its existing employees from their former owner's
plan to a new plan, the Rapiscan defined benefit plan, which covers certain
Rapiscan employees. The benefits under this plan are based on years of service
and the employee's highest 12 months' compensation during the last five years
of employment. Rapiscan's funding policy is to make the minimum annual
contributions required by applicable regulations based on an independent
actuarial valuation sufficient
 
                                     F-19
<PAGE>
 
                      OSI SYSTEMS, INC. AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

to provide for benefits accruing after that date. Pension expense for the
years ended June 30, 1994, 1995, and 1996 and for the nine months ended March
31, 1996 (unaudited) and 1997 was approximately $89,000, $111,000, $91,000,
$67,000 and $64,000, respectively.
 
14. SEGMENT INFORMATION
 
  The Company's operating locations include the United States, Europe (United
Kingdom and Norway) and Asia (Singapore and Malaysia). The Company's
operations and identifiable assets by geographical area are as follows (in
thousands):
 
<TABLE>
<CAPTION>
                                           YEAR ENDED JUNE 30, 1994
                               ------------------------------------------------
                               UNITED
                               STATES  EUROPE   ASIA  ELIMINATIONS CONSOLIDATED
                               ------- ------- ------ ------------ ------------
<S>                            <C>     <C>     <C>    <C>          <C>
Revenues...................... $29,788 $13,624 $4,323                $47,735
Transfer between geographical
 areas........................   1,551     742    882   $ (3,175)        --
                               ------- ------- ------   --------     -------
Net revenues.................. $31,339 $14,366 $5,205   $ (3,175)    $47,735
                               ======= ======= ======   ========     =======
Operating income.............. $ 1,028 $   564 $  653   $     28     $ 2,273
                               ======= ======= ======   ========     =======
Identifiable assets........... $29,266 $ 9,629 $2,923   $(16,011)    $25,807
                               ======= ======= ======   ========     =======
</TABLE>
 
<TABLE>
<CAPTION>
                                           YEAR ENDED JUNE 30, 1995
                               ------------------------------------------------
                               UNITED
                               STATES  EUROPE   ASIA  ELIMINATIONS CONSOLIDATED
                               ------- ------- ------ ------------ ------------
<S>                            <C>     <C>     <C>    <C>          <C>
Revenues...................... $33,158 $11,341 $5,316                $49,815
Transfer between geographical
 areas........................   1,698     788  3,831   $ (6,317)        --
                               ------- ------- ------   --------     -------
Net revenues.................. $34,856 $12,129 $9,147   $ (6,317)    $49,815
                               ======= ======= ======   ========     =======
Operating income.............. $ 1,996 $   485 $  267   $     57     $ 2,805
                               ======= ======= ======   ========     =======
Identifiable assets........... $36,751 $10,832 $4,839   $(21,642)    $30,780
                               ======= ======= ======   ========     =======
</TABLE>
 
<TABLE>
<CAPTION>
                                           YEAR ENDED JUNE 30, 1996
                               -------------------------------------------------
                               UNITED
                               STATES  EUROPE   ASIA   ELIMINATIONS CONSOLIDATED
                               ------- ------- ------- ------------ ------------
<S>                            <C>     <C>     <C>     <C>          <C>
Revenues.....................  $42,403 $15,346 $ 3,769                $61,518
Transfer between geographical
 areas.......................    6,304   3,092  10,974   $(20,370)        --
                               ------- ------- -------   --------     -------
Net revenues.................  $48,707 $18,438 $14,743   $(20,370)    $61,518
                               ======= ======= =======   ========     =======
Operating income.............  $ 2,641 $ 1,278 $   890   $   (197)    $ 4,612
                               ======= ======= =======   ========     =======
Identifiable assets..........  $42,932 $10,179 $ 5,986   $(23,788)    $35,309
                               ======= ======= =======   ========     =======
</TABLE>
 
<TABLE>
<CAPTION>
                                       NINE MONTHS ENDED MARCH 31, 1997
                               -------------------------------------------------
                               UNITED
                               STATES  EUROPE   ASIA   ELIMINATIONS CONSOLIDATED
                               ------- ------- ------- ------------ ------------
<S>                            <C>     <C>     <C>     <C>          <C>
Revenues.....................  $41,241 $12,388 $ 2,344                $55,973
Transfer between geographical
 areas.......................    5,691   3,461   9,091   $(18,243)        --
                               ------- ------- -------   --------     -------
Net revenues.................  $46,932 $15,849 $11,435   $(18,243)    $55,973
                               ======= ======= =======   ========     =======
Operating income.............  $ 2,691 $ 1,040 $ 1,190   $   (104)    $ 4,817
                               ======= ======= =======   ========     =======
Identifiable assets..........  $47,836 $13,362 $ 8,262   $(25,146)    $44,314
                               ======= ======= =======   ========     =======
</TABLE>
 
                                     F-20
<PAGE>
 
                              [INSIDE BACK PAGE]

    
[Background names of various countries]      
    
[Picture of inspection machine with image of gun and various 
items on monitor]      
                                       
                                   RAPISCAN 
                         2000 Units Shipped Worldwide      
    
[Picture of cruise ship terminal]
Cruise Ship Terminal      
    
[Picture of correctional facility]
Correctional Facility      
    
[Picture of freight forwarder facility]
International Freight Forwarder      
    
[Picture of court house]
Municipal Court House      
    
[Picture of Buckingham Palace]
Buckingham Palace      
    
[Picture of airport terminal]
International Airport      


     The Company's security and inspection products are used for security
purposes at locations such as airports, courthouses, government buildings,
nuclear facilities, mail rooms, schools and prisons. In addition, the security
and inspections products are also increasingly being used for non-security
purposes, such as for cargo inspection to detect narcotics and contraband,
prevention of pilferage at semiconductor manufacturing facilities, quality
assurance for agricultural products, and the detection of gold and currency.

<PAGE>
 
 
 
 
                         [LOGO OF OPTO-SENSORS, INC.]
 
 
 
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
  The following table sets forth an itemized statement of all expenses to be
incurred in connection with the issuance and distribution of the securities
that are the subject of this Registration Statement other than underwriting
discounts and commissions. All expenses incurred with respect to the
distribution will be paid by the Company, and such amounts, other than the
Securities and Exchange Commission registration fee and the NASD filing fee,
are estimates only.
 
<TABLE>
   <S>                                                                <C>
   Securities and Exchange Commission registration fee............... $ 18,052
   NASD filing fee...................................................    6,457
   Nasdaq National Market System listing fee.........................   26,275
   Printing and engraving expenses...................................  100,000
   Transfer agent and registrar fees.................................    2,000
   Legal fees and expenses...........................................  175,000
   Accounting fees and expenses......................................  150,000
   "Blue sky" fees and expenses......................................   15,000
   Other expenses....................................................  167,216
                                                                      --------
     Total........................................................... $660,000*
                                                                      ========
</TABLE>
- ---------------------
*  The Selling Shareholders will pay their pro rata share of all expenses
   incurred with respect to the distribution of the Common Stock, which amount
   is currently estimated to be approximately $60,000.
 
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS
   
  The Company's Articles of Incorporation ("Articles") provide that, pursuant
to the California Corporations Code, the liability of the directors of the
Company for monetary damages shall be eliminated to the fullest extent
permissible under California law. This is intended to eliminate the personal
liability of a director for monetary damages in an action brought by, or in
the right of, the Company for breach of a director's duties to the Company or
its shareholders. This provision in the Articles does not eliminate the
directors' fiduciary duty and does not apply for certain liabilities: (i) for
acts or omissions that involve intentional misconduct or a knowing and
culpable violation of law; (ii) for acts or omissions that a director believes
to be contrary to the best interest of the Company or its shareholders or that
involve the absence of good faith on the part of the director; (iii) for any
transaction from which a director derived an improper personal benefit; (iv)
for acts or omissions that show a reckless disregard for the director's duty
to the Company or its shareholders in circumstances in which the director was
aware, or should have been aware, in the ordinary course of performing a
director's duties, of a risk of serious injury to the Company or its
shareholders; (v) for acts or omissions that constitute an unexcused pattern
of inattention that amounts to an abdication of the director's duty to the
Company or its shareholders; (vi) with respect to certain transactions or the
approval of transactions in which a director has a material financial
interest; and (vii) expressly imposed by statute for approval of certain
improper distributions to shareholders or certain loans or guarantees. This
provision also does not limit or eliminate the rights of the Company or any
shareholder to seek non-monetary relief such as an injunction or rescission in
the event of a breach of a director's duty of care. The Company's Amended and
Restated Bylaws require the Company to indemnify its officers and directors
under certain circumstances. Among other things, the Bylaws require the
Company to indemnify directors and officers against certain liabilities that
may arise by reason of their status or service as directors and officers and
allows the Company to advance their expenses incurred as a result of any
proceeding against them as to which they could be indemnified.     
 
  Section 317 of the California Corporations Code ("Section 317") provides
that a California corporation may indemnify any person who was or is a party
or is threatened to be made a party to any threatened, pending or completed
action or proceeding, whether civil, criminal, administrative or investigative
(other than
 
                                     II-1
<PAGE>
 
action by or in the right of the corporation) by reason of the fact that he is
or was a director, officer, employee, or agent of the corporation or is or was
serving at the request of the corporation as a director, officer, employee or
agent of another corporation or enterprise, against expenses, judgments, fines
and amounts paid in settlement actually and reasonably incurred by him in
connection with such action or proceeding if he acted in good faith and in a
manner he reasonably believed to be in or not opposed to the best interest of
the corporation, and, with respect to any criminal action or proceeding, had
no cause to believe his conduct was unlawful.
 
  Section 317 also provides that a California corporation may indemnify any
person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor by reason of the fact that such
person acted in any of the capacities set forth above, against expenses
actually and reasonably incurred by him in connection with the defense or
settlement of such action or suit if he acted under similar standards, except
that no indemnification may be made in respect to any claim, issue or matter
as to which such persons shall have been adjudged to be liable to the
corporation unless and only to the extent that the court in which such action
or suit was brought shall determine that despite the adjudication of
liability, such person is fairly and reasonably entitled to be indemnified for
such expenses which the court shall deem proper.
 
  Section 317 provides further that to the extent a director or officer of a
California corporation has been successful in the defense of any action, suit
or proceeding referred to in the previous paragraphs or in the defense of any
claim, issue or matter therein, he shall be indemnified against expenses
actually and reasonably incurred by him in connection therewith; that
indemnification authorized by Section 317 shall not be deemed exclusive of any
other rights to which the indemnified party may be entitled; and that the
corporation may purchase and maintain insurance on behalf of a director or
officer of the corporation against any liability asserted against him or
incurred by him in any such capacity or arising out of his status as such
whether or not the corporation would have the power to indemnify him against
such liabilities under Section 317.
 
  In May 1994, the Company entered into indemnification agreements with Deepak
Chopra, Ajay Mehra and Thomas K. Hickman in connection with certain personal
guarantees provided by them to a Singapore financial institution that provided
a loan to OSI Singapore, a subsidiary of the Company. The indemnification
agreements provide that the Company shall indemnify Messrs. Chopra, Mehra and
Hickman against all debts, liabilities, damages, claims, expenses and costs
including attorneys' fees incurred by them in connection with OSI Singapore's
inability to fulfill its obligations under the loan and their respective
guarantees of such loan. Messrs. Chopra, Mehra and Hickman are directors
and/or executive officers of the Company.
 
  In connection with certain settlements entered into pursuant to the Consent
Agreements, the Company's subsidiary, UDT Sensors, agreed to pay the United
States government a total of $1,500,000 in five annual installments ending on
March 31, 1999. In order to ensure the full payment, Deepak Chopra personally
guaranteed the payment of $750,000 of the foregoing amount. The Company
entered into an indemnification agreement with Mr. Chopra pursuant to which
the Company shall indemnify Mr. Chopra against all debts, liabilities,
damages, claims, expenses and costs including attorneys' fees incurred by him
in connection with his guarantee of the payment of $750,000.
 
  In addition, the Company intends to enter into indemnification agreements
("Indemnification Agreement(s)") with each of its directors and executive
officers prior to the consummation of the Offering. Each such Indemnification
Agreement will provide that the Company will indemnify the indemnitee against
expenses, including reasonable attorneys' fees, judgements, penalties, fines
and amounts paid in settlement actually and reasonably incurred by him in
connection with any civil or criminal action or administrative proceeding
arising out of the performance of his duties as a director or officer, other
than an action instituted by the director or officer. Such indemnification is
available if the indemnitee acted in good faith and in a manner he reasonably
believed to be in or not opposed to the best interests of the Company, and,
with respect
 
                                     II-2
<PAGE>
 
to any criminal action, had no reasonable cause to believe his conduct was
unlawful. Each Indemnification Agreement will permit the director or officer
that is party thereto to bring suit to seek recovery of amounts due under the
Indemnification Agreement and to recover the expenses of such a suit if he is
successful.
 
  The Underwriting Agreement to be filed as Exhibit 1.1 to this Registration
Statement provides for indemnification by the Underwriters of the Company and
its officers and directors for certain liabilities arising under the
Securities Act or otherwise.
 
  The Company believes that it is the position of the Commission that insofar
as the foregoing provisions may be invoked to disclaim liability for damages
arising under the Securities Act, the provision is against public policy as
expressed in the Securities Act and is therefore unenforceable. Such
limitation of liability also does not affect the availability of equitable
remedies such as injunctive relief or rescission.
 
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES
 
  As of May 31, 1997, the Company had outstanding 2,568,750 shares of
Preferred stock which had the same rights, preferences, privileges and
restrictions as the Common Stock except for a liquidation preference entitling
each holder of Preferred Stock to receive $1.00 per share of Preferred Stock
prior to any payment to holders of Common Stock upon any liquidation,
dissolution or winding up of the Company. The then outstanding shares of
Preferred Stock were held by 29 investors including certain directors,
executive officers and principal shareholders of the Company. On June 12,
1997, in connection with the Stock Split, each outstanding share of Preferred
Stock was converted into one and one-half shares of Common Stock (the
"Preferred Stock Conversion"). As a result, all of the shares of Preferred
Stock were converted into 3,853,125 shares of Common Stock. No Preferred Stock
is currently outstanding.
 
  In June 1989, April 1990 and February 1993 the Company issued and sold
(without payment of any selling commission to any person) subordinated
promissory notes in the aggregate principal amounts of approximately $385,000,
$3,520,000 and $575,000, respectively, with related warrants or conversion
rights to purchase capital stock of the Company. The purchasers of the
subordinated notes consisted of a financial institution and certain of the
Company's directors, executive officers, principal shareholders and their
family members, friends and acquaintances. The promissory notes, warrants and
conversion rights provided that the note holders were entitled to exercise the
warrants or convert the notes into capital stock of the Company by cancelling
the appropriate amounts of the outstanding principal amount and accrued
interest of such promissory notes. The exercise price of the warrants issued
in June 1989 and April 1990 was $1.33 per share (after giving effect to the
Stock Split), whereas the exercise price of the warrants and convertible notes
issued in February 1993 was $1.87 per share (after giving effect to the Stock
Split). During the period from March 1995 to November 1996, an aggregate
principal amount of $3,150,000 underlying the subordinated notes were
converted into 132,858 shares of Common Stock and 1,410,000 shares of
Preferred Stock (before giving effect to the Preferred Stock Conversion and
the Stock Split) as a result of the exercise of the warrants and conversion
rights. As a result of the Preferred Stock Conversion and the Stock Split, the
former note holders that exercised their warrants and conversion rights
currently hold 2,314,287 shares of Common Stock.
 
  In April 1990, the Company issued warrants to purchase 35,000 shares of
Preferred Stock to Troy & Gould Professional Corporation ("Troy & Gould") in
consideration for legal services rendered by Troy & Gould. In April 1995, Troy
& Gould and certain principals thereof exercised such warrants by acquiring an
aggregate of 35,000 shares of Preferred Stock for a total exercise price of
$70,000. As a result of the Preferred Stock Conversion, Troy & Gould and
certain of its principals currently hold 52,500 shares of Common Stock.
 
  Since June 1, 1994, the Company sold an aggregate of 194,250 shares of
Common Stock for an aggregate purchase price of $238,075 to various employees
pursuant to the exercise of options granted under the Company's 1987 Incentive
Stock Option Plan.
 
  Since June 1, 1994, the Company has issued options to purchase a total of
789,611 shares of its Common Stock to a total of 89 officers, directors and
employees of the Company. The exercise price of the foregoing options granted
by the Company ranged from $2.00 to $13.50 per share.
 
                                     II-3
<PAGE>
 
  In November 1996, the Company issued 159,201 shares of its Common Stock to
10 officers and key employees of the Company in exchange for all of the shares
of capital stock of Rapiscan U.S.A., one of the Company's subsidiaries, then
owned by such officers and employees. The shares of Common Stock were valued
at $6.67 per share.
 
  In September 1996, the Company issued 19,755 shares of its Common Stock to
six officers and key employees of the Company in exchange for all of the
shares of capital stock of Ferson Optics, Inc., one of the Company's
subsidiaries, then owned by such officers and employees. The shares of Common
Stock were valued at $6.67 per share.
   
  The Company believes that the issuances of securities pursuant to the
foregoing transactions were exempt from registration under the Securities Act
of 1933, as amended, by virtue of Section 4(2) or Section 3(b).     
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
  (a) The following exhibits, which are furnished with this Registration
Statement or incorporated herein by reference, are filed as a part of this
Registration Statement:
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                            EXHIBIT DESCRIPTION
 -------                           -------------------
 <C>     <S>
  1.1    Form of Underwriting Agreement.(1)
  3.1    Articles of Incorporation of the Company.(1)
  3.2    Amended and Restated Bylaws of the Company.(1)
  4.1    Specimen Common Stock Certificate.*
  5.1    Opinion of Troy & Gould Professional Corporation.*
 10.1    1987 Incentive Stock Option Plan, as amended, and form of Stock Option
          Agreement.(1)
 10.2    1997 Stock Option Plan and forms of Stock Option Agreements.(2)
 10.3    Employment Agreement dated April 1, 1997 between the Company and
          Deepak Chopra.(1)
 10.4    Employment Agreement dated April 1, 1997 between the Company and Ajay
          Mehra.(1)
 10.5    Employment Agreement dated March 1, 1993 between the Company and
          Andreas F. Kotowski.*
 10.6    Employment Agreement dated April 1, 1997 between the Company and
          Manoocher Mansouri Aliabadi.(1)
 10.7    Employment Agreement dated October 5, 1994 between the Company and
          Anthony S. Crane.*
 10.8    Expatriate Employment Agreement dated July 11, 1995 between the
          Company and Thomas K. Hickman.(2)
 10.9    Incentive Compensation Agreement dated December 18, 1996 between the
          Company and Andreas F. Kotowski.(1)
 10.10   Form of Indemnification Agreement for directors and executive officers
          of the Company.*
 10.11   Joint Venture Agreement dated January 4, 1994 among the Company,
          Electronics Corporation of India, Limited and ECIL-Rapiscan Security
          Products Limited ("ECIL-Rapiscan") as amended.
 10.12   Amendment Number Two to Lease, dated October 24, 1995 to lease dated
          January 1, 1989 by and between KB Management Company, and UDT
          Sensors, Inc.(1)
 10.13   Lease Agreement dated July 4, 1986 by and between Electricity Supply
          Nominees Limited and Rapiscan Security Products Limited (as assignee
          of International Aeradio Limited).*
 10.14   Lease Agreement dated January 17, 1997 by and between Artloon Supplies
          Sdn. Bhd. and Opto Sensors (M) Sdn. Bhd.(1)
 10.15   Credit Agreement entered into on January 24, 1997, by and between
          Sanwa Bank California and Opto Sensors, Inc., UDT Sensors, Inc.,
          Rapiscan Security Products (U.S.A.), Inc. and Ferson Optics, Inc.(1)
 10.16   Credit Agreement entered into on November 1, 1996 by and between Opto
          Sensors, Inc., UDT Sensors, Inc., Rapiscan Security Products
          (U.S.A.), Inc. and Ferson Optics, Inc., and Wells Fargo HSBC Trade
          Bank.(1)
</TABLE>    
 
                                     II-4
<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                            EXHIBIT DESCRIPTION
 -------                           -------------------
 <C>     <S>
  10.17  License Agreement made and entered into as of December 19, 1994, by
          and between EG&G Inc. and Rapiscan Security Products, Inc.(1)
  10.18  Stock Purchase Agreement dated March 5, 1997 between Industriinvestor
          ASA and Opto Sensors, Inc.(1)
  11.1   Statement regarding computation of earnings per share.(1)
  21.1   Subsidiaries of the Company.(1)
  23.1   Consent of Deloitte & Touche LLP.
  23.2   Consent of Troy & Gould Professional Corporation (contained in Exhibit
          5.1).*
  24.1   Power of Attorney.(1)
  27.1   Financial Data Schedule.(1)
  99.1   Criminal Plea and Sentencing Agreement between UDT Sensors, Inc. and
          U.S. Attorney's Office.
  99.2   Agreement between UDT Sensors, Inc. and Department of Navy.
</TABLE>    
- --------
* To be filed by amendment.
   
(1) Previously filed with the Company's Registration Statement filed June 13,
    1997.     
   
(2) Replaces the exhibit previously filed with the corresponding exhibit
    number.     
 
  (b) The following schedules supporting the financial statements are included
herein:
 
    Schedule II--Valuation and Qualifying Accounts
 
  All other schedules are omitted, since the required information is not
present in amounts sufficient to require submission of schedules or because
the information required is included in the Registrant's financial statements
and notes thereto.
 
ITEM 17. UNDERTAKINGS
 
  (a) The undersigned Registrant hereby undertakes to provide to the
Underwriters at the closing specified
in the Underwriting Agreement certificates in such denominations and
registered in such names as required by the Underwriters to permit prompt
delivery to each purchaser.
 
  (b) Insofar as indemnification for liabilities arising under the Securities
Act of 1933, as amended (the "Securities Act"), may be permitted to directors,
officers, and controlling persons of the Registrant pursuant to the foregoing
provisions, or otherwise, the Registrant has been advised that in the opinion
of the Securities and Exchange Commission, such indemnification is against
public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer, or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel
the matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question of whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed
by the final adjudication of such issue.
 
  (c) The undersigned Registrant hereby undertakes that:
 
    (1) For purposes of determining any liability under the Securities Act,
  the information omitted from the form of prospectus filed as part of this
  registration statement in reliance upon Rule 430A and contained in a form
  of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or
  Rule 497(h) under the Securities Act shall be deemed to be part of this
  registration statement as of the time it was declared effective.
 
    (2) For the purpose of determining any liability under the Securities
  Act, each post-effective amendment that contains a form of prospectus shall
  be deemed to be a new registration statement relating to the securities
  offered therein, and the offering of such securities at that time shall be
  deemed to be the initial bona fide offering thereof.
 
                                     II-5
<PAGE>
 
                                  SIGNATURES
   
  Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Amendment to the Registration Statement to be signed on
its behalf by the undersigned, thereunto duly authorized, in the City of
Hawthorne, State of California, on August 1, 1997.     
 
                                       OSI SYSTEMS, INC.
 
                                                   /s/ DEEPAK CHOPRA
                                       By: ___________________________________
                                          Deepak Chopra
                                          Chairman, Chief Executive Officer
                                          and President
                                                 
          
  Pursuant to the requirements of the Securities Act of 1933, this amendment
to the Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.     
 
              SIGNATURE                        TITLE                 DATE
 
          /s/ DEEPAK CHOPRA            Chairman, Chief             
- -------------------------------------   Executive Officer       August 1, 1997
            Deepak Chopra               and President                    
                                        (Principal
                                        Executive Officer)
 
           /s/ AJAY MEHRA              Vice President,             
- -------------------------------------   Chief Financial         August 1, 1997
             Ajay Mehra                 Officer, Secretary               
                                        and Director
                                        (Principal
                                        Financial and
                                        Accounting Officer)
 
                                       
               *                       Director                 August 1, 1997
- -------------------------------------                                    
           Steven C. Good
 
                                       
               *                       Director                 August 1, 1997
- -------------------------------------                                    
            Meyer Luskin
 
                                       
               *                       Director                 August 1, 1997
- -------------------------------------                                    
            Madan G. Syal

   
*By:        /s/ DEEPAK CHOPRA                                   August 1, 1997
- -------------------------------------                                    
            
         Deepak Chopra     
         
      as Attorney-In-Fact     
 
                                     II-6
<PAGE>
 
                 SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS
 
<TABLE>
<CAPTION>
                                           ADDITIONS
                                     ---------------------
                            BALANCE      (1)        (2)                 BALANCE
                              AT       CHARGED    CHARGED  DEDUCTIONS-- AT END
                           BEGINNING TO COSTS AND TO OTHER  WRITE-OFFS    OF
DESCRIPTION                OF PERIOD   EXPENSES   ACCOUNTS (RECOVERIES) PERIOD
- -----------                --------- ------------ -------- ------------ -------
<S>                        <C>       <C>          <C>      <C>          <C>
Allowance for doubtful
 accounts:
  Year Ended June 30,
   1994...................   $ 38        $150       --         (15)      $203
                             ====        ====       ===        ===       ====
  Year Ended June 30,
   1995...................   $203         (70)      --          80       $ 53
                             ====        ====       ===        ===       ====
  Year Ended June 30,
   1996...................   $ 53        $404       --         181       $276
                             ====        ====       ===        ===       ====
  Nine Months Ended March
   31, 1997...............   $276        $ 97       --          79       $294
                             ====        ====       ===        ===       ====
</TABLE>
<PAGE>
 
<TABLE>   
<CAPTION>
 EXHIBIT
 NUMBER                            EXHIBIT DESCRIPTION
 -------                           -------------------
 <C>     <S>
   1.1   Form of Underwriting Agreement.(1)
   3.1   Articles of Incorporation of the Company.(1)
   3.2   Amended and Restated Bylaws of the Company.(1)
   4.1   Specimen Common Stock Certificate.*
   5.1   Opinion of Troy & Gould Professional Corporation.*
  10.1   1987 Incentive Stock Option Plan, as amended, and form of Stock Option
          Agreement.(1)
  10.2   1997 Stock Option Plan and forms of Stock Option Agreements.(2)
  10.3   Employment Agreement dated April 1, 1997 between the Company and
          Deepak Chopra.(1)
  10.4   Employment Agreement dated April 1, 1997 between the Company and Ajay
          Mehra.(1)
  10.5   Employment Agreement dated March 1, 1993 between the Company and
          Andreas F. Kotowski.*
  10.6   Employment Agreement dated April 1, 1997 between the Company and
          Manoocher Mansouri Aliabadi.(1)
  10.7   Employment Agreement dated October 5, 1994 between the Company and
          Anthony S. Crane.*
  10.8   Expatriate Employment Agreement dated July 11, 1995 between the
          Company and Thomas K. Hickman.(2)
  10.9   Incentive Compensation Agreement dated December 18, 1996 between the
          Company and Andreas F. Kotowski.(1)
  10.10  Form of Indemnification Agreement for directors and executive officers
          of the Company.*
  10.11  Joint Venture Agreement dated January 4, 1994 among the Company,
          Electronics Corporation of India, Limited and ECIL-Rapiscan Security
          Products Limited ("ECIL-Rapiscan") as amended.
  10.12  Amendment Number Two to Lease, dated October 24, 1995 to lease dated
          January 1, 1989 by and between KB Management Company, and UDT
          Sensors, Inc.(1)
  10.13  Lease Agreement dated July 4, 1986 by and between Electricity Supply
          Nominees Limited and Rapiscan Security Products Limited (as assignee
          of International Aeradio Limited).*
  10.14  Lease Agreement dated January 17, 1997 by and between Artloon Supplies
          Sdn. Bhd. and Opto Sensors (M) Sdn. Bhd.(1)
  10.15  Credit Agreement entered into on January 24, 1997, by and between
          Sanwa Bank California and Opto Sensors, Inc., UDT Sensors, Inc.,
          Rapiscan Security Products (U.S.A.), Inc. and Ferson Optics, Inc.(1)
  10.16  Credit Agreement entered into on November 1, 1996 by and between Opto
          Sensors, Inc., UDT Sensors, Inc., Rapiscan Security Products
          (U.S.A.), Inc. and Ferson Optics, Inc., and Wells Fargo HSBC Trade
          Bank.(1)
  10.17  License Agreement made and entered into as of December 19, 1994, by
          and between EG&G Inc. and Rapiscan Security Products, Inc.(1)
  10.18  Stock Purchase Agreement dated March 5, 1997 between Industriinvestor
          ASA and Opto Sensors, Inc.(1)
  11.1   Statement regarding computation of earnings per share.(1)
  21.1   Subsidiaries of the Company.(1)
  23.1   Consent of Deloitte & Touche LLP.
  23.2   Consent of Troy & Gould Professional Corporation (contained in Exhibit
          5.1).*
  24.1   Power of Attorney.(1)
  27.1   Financial Data Schedule.(1)
  99.1   Criminal Plea and Sentencing Agreement between UDT Sensors, Inc. and
          U.S. Attorney's Office.
  99.2   Agreement between UDT Sensors, Inc. and Department of Navy.
</TABLE>    
- --------
   
* To be filed by amendment.     
   
(1) Previously filed with the Company's Registration Statement filed June 13,
    1997.     
   
(2) Replaces the exhibit previously filed with the corresponding exhibit
    number.     

<PAGE>
 
                                                                    EXHIBIT 10.2

                            1997 STOCK OPTION PLAN
                                       OF
                               OSI SYSTEMS, INC.


1.   PURPOSES OF THE PLAN
     --------------------

     The purposes of the 1997 Stock Option Plan (the "Plan") of OSI Systems,
Inc., a California corporation (the "Company"), are to:

          (a) Encourage selected employees, directors and consultants to improve
operations and increase profits of the Company;

          (b) Encourage selected employees, directors and consultants to accept
or continue employment or association with the Company or its Affiliates; and

          (c) Increase the interest of selected employees, directors and
consultants in the Company's welfare through participation in the growth in
value of the common stock of the Company (the "Common Stock").

     Options granted under this Plan ("Options") may be "incentive stock
options" ("ISOs") intended to satisfy the requirements of Section 422 of the
Internal Revenue Code of 1986, as amended, and the regulations thereunder (the
"Code"), or "nonqualified options" ("NQOs").

2.   ELIGIBLE PERSONS
     ----------------

     Every person who at the date of grant of an Option is an employee of the
Company or of any Affiliate (as defined below) of the Company is eligible to
receive NQOs or ISOs under this Plan.  Every person who at the date of grant is
a consultant to, or non-employee director of, the Company or any Affiliate (as
defined below) of the Company is eligible to receive NQOs under this Plan.  The
term "Affiliate" as used in the Plan means a parent or subsidiary corporation as
defined in the applicable provisions (currently Sections 424(e) and (f),
respectively) of the Code.  The term "employee" includes an officer or director
who is an employee of the Company.  The term "consultant" includes persons
employed by, or otherwise affiliated with, a consultant.

3.   STOCK SUBJECT TO THIS PLAN; MAXIMUM NUMBER OF GRANTS
     ----------------------------------------------------

     Subject to the provisions of Section 6.1.1 of the Plan, the total number of
shares of stock which may be issued under Options granted pursuant to this Plan
shall not exceed 850,000 shares of Common Stock (which gives effect to a 1.5-
for-1 stock split of the Common Stock (the "Stock Split") to be effected in June
1997).  The shares covered by the portion of any grant under the Plan which
expires unexercised shall become available again for grants under the Plan.  No
eligible person shall be granted Options during any twelve-month period covering
more than 425,000 shares (which gives effect to the Stock Split to be effected
in June 1997).
<PAGE>
 
4.   ADMINISTRATION
     --------------

          (a) The Plan shall be administered by the Board of Directors of the
Company (the "Board") or by a committee (the "Committee") to which
administration of the Plan, or of part of the Plan, is delegated by the Board
(in either case, the "Administrator").  The Board shall appoint and remove
members of the Committee in its discretion in accordance with applicable laws.
If necessary in order to comply with Rule 16b-3 under the Exchange Act and
Section 162(m) of the Code, the Committee shall, in the Board's discretion, be
comprised solely of "non-employee directors" within the meaning of said Rule
16b-3 and "outside directors" within the meaning of Section 162(m) of the Code.
The foregoing notwithstanding, the Administrator may delegate nondiscretionary
administrative duties to such employees of the Company as it deems proper and
the Board, in its absolute discretion, may at any time and from time to time
exercise any and all rights and duties of the Administrator under the Plan.

          (b) Subject to the other provisions of this Plan, the Administrator
shall have the authority, in its discretion: (i) to grant Options; (ii) to
determine the fair market value of the Common Stock subject to Options; (iii) to
determine the exercise price of Options granted; (iv) to determine the persons
to whom, and the time or times at which, Options shall be granted, and the
number of shares subject to each Option; (v) to interpret this Plan; (vi) to
prescribe, amend, and rescind rules and regulations relating to this Plan; (vii)
to determine the terms and provisions of each Option granted (which need not be
identical), including but not limited to, the time or times at which Options
shall be exercisable; (viii) with the consent of the optionee, to modify or
amend any Option; (ix) to defer (with the consent of the optionee) the exercise
date of any Option; (x) to authorize any person to execute on behalf of the
Company any instrument evidencing the grant of an Option; and (xi) to make all
other determinations deemed necessary or advisable for the administration of
this Plan.  The Administrator may delegate nondiscretionary administrative
duties to such employees of the Company as it deems proper.

          (c) All questions of interpretation, implementation, and application
of this Plan shall be determined by the Administrator.  Such determinations
shall be final and binding on all persons.

                                       2
<PAGE>
 
5.   GRANTING OF OPTIONS; OPTION AGREEMENT
     -------------------------------------

                  (a) No Options shall be granted under this Plan after 10 years
from the date of adoption of this Plan by the Board.

                  (b) Each Option shall be evidenced by a written stock option
agreement, in form satisfactory to the Administrator, executed by the Company
and the person to whom such Option is granted.

                  (c) The stock option agreement shall specify whether each
Option it evidences is an NQO or an ISO.

                  (d) Subject to Section 6.3.3 with respect to ISOs, the
Administrator may approve the grant of Options under this Plan to persons who
are expected to become employees, directors or consultants of the Company, but
are not employees, directors or consultants at the date of approval, and the
date of approval shall be deemed to be the date of grant unless otherwise
specified by the Administrator.

6.   TERMS AND CONDITIONS OF OPTIONS
     -------------------------------

     Each Option granted under this Plan shall be subject to the terms and
conditions set forth in Section 6.1.   NQOs shall be also subject to the terms
and conditions set forth in Section 6.2, but not those set forth in Section 6.3.
ISOs shall also be subject to the terms and conditions set forth in Section 6.3,
but not those set forth in Section 6.2.

     6.1  Terms and Conditions to Which All Options Are Subject.  All Options
          -----------------------------------------------------              
granted under this Plan shall be subject to the following terms and conditions:

          6.1.1   Changes in Capital Structure.  Subject to Section 6.1.2, if
                  ----------------------------                               
the stock of the Company is changed by reason of a stock split, reverse stock
split, stock dividend, or recapitalization, combination or reclassification,
appropriate adjustments shall be made by the Board in (a) the number and class
of shares of stock subject to this Plan and each Option outstanding under this
Plan, and (b) the exercise price of each outstanding Option; provided, however,
that the Company shall not be required to issue fractional shares as a result of
any such adjustments.  Each such adjustment shall be subject to approval by the
Board in its sole discretion.

          6.1.2   Corporate Transactions.  In the event of the proposed
                  ----------------------                               
dissolution or liquidation of the Company, the Administrator shall notify each
optionee at least 30 days prior to such proposed action.  To the extent not
previously exercised, all Options will terminate immediately prior to the
consummation of such proposed action; provided, however, that the Administrator,
in the exercise of his sole discretion, may permit exercise of any Options prior
to their termination, even if such Options were not otherwise exercisable.  In
the event of a merger or consolidation of the Company with or into another
corporation or entity in which the Company does not survive, or in

                                       3
<PAGE>
 
the event of a sale of all or substantially all of the assets of the Company in
which the shareholders of the Company receive securities of the acquiring entity
or an affiliate thereof, all Options shall be assumed or equivalent options
shall be substituted by the successor corporation (or other entity) or a parent
or subsidiary of such successor corporation (or other entity); provided,
however, that if such successor does not agree to assume the Options or to
substitute equivalent options therefor, the Administrator, in the exercise of
its sole discretion, may permit the exercise of any of the Options prior to
consummation of such event, even if such Options were not otherwise exercisable.

          6.1.3   Time of Option Exercise.  Subject to Section 5 and Section
                  -----------------------                                   
6.3.4, Options granted under this Plan shall be exercisable (a) immediately as
of the effective date of the stock option agreement granting the Option, or (b)
in accordance with a schedule as may be set by the Administrator (in any case,
the "Vesting Base Date") and specified in the written stock option agreement
relating to such Option. In any case, no Option shall be exercisable until a
written stock option agreement in form satisfactory to the Company is executed
by the Company and the optionee.  Notwithstanding the foregoing, to the extent
required by applicable laws, rules and regulations, the right to exercise
Options granted pursuant to this Plan shall vest at the rate of at least 20% per
year from the date of grant.

          6.1.4   Option Grant Date.  The date of grant of an Option under this
                  -----------------                                            
Plan shall be the date as of which the Administrator approves the grant.

          6.1.5   Nontransferability of Option Rights.  Except with the express
                  -----------------------------------                          
written approval of the Administrator which approval the Administrator is
authorized to give only with respect to NQOs, no Option granted under this Plan
shall be assignable or otherwise transferable by the optionee except by will or
by the laws of descent and distribution.  During the life of the optionee, an
Option shall be exercisable only by the optionee.

          6.1.6   Payment.  Except as provided below, payment in full, in cash,
                  -------                                                      
shall be made for all stock purchased at the time written notice of exercise of
an Option is given to the Company, and proceeds of any payment shall constitute
general funds of the Company.  The Administrator, in the exercise of its
absolute discretion after considering any tax, accounting and financial
consequences, may authorize any one or more of the following additional methods
of payment:

          (a) Acceptance of the optionee's full recourse promissory note for all
or part of the Option price, payable on such terms and bearing such interest
rate as determined by the Administrator (but in no event less than the minimum
interest rate specified under the Code at which no additional interest would be
imputed), which promissory note may be either secured or unsecured in such
manner as the Administrator shall approve (including, without limitation, by a
security interest in the shares of the Company);

                                       4
<PAGE>
 
          (b) Subject to the discretion of the Administrator and the terms of
the stock option agreement granting the Option, delivery by the optionee of
shares of Common Stock already owned by the optionee for all or part of the
Option price, provided the fair market value (determined as set forth in Section
6.1.10) of such shares of Common Stock is equal on the date of exercise to the
Option price, or such portion thereof as the optionee is authorized to pay by
delivery of such stock; and

          (c) Subject to the discretion of the Administrator, through the
surrender of shares of Common Stock then issuable upon exercise of the Option,
provided the fair market value (determined as set forth in Section 6.1.10) of
such shares of Common Stock is equal on the date of exercise to the Option
price, or such portion thereof as the optionee is authorized to pay by surrender
of such stock.

          (d) By means of so-called cashless exercises as permitted under
applicable rules and regulations of the Securities and Exchange Commission and
the Federal Reserve Board.

          6.1.7   Termination of Employment.  If for any reason other than death
                  -------------------------                                     
or permanent and total disability, an optionee ceases to be employed by the
Company or any of its Affiliates (such event being called a "Termination"),
Options held at the date of Termination (to the extent then exercisable) may be
exercised in whole or in part at any time within three months of the date of
such Termination, or such other period of not less than 30 days after the date
of such Termination as is specified in the Option Agreement or by amendment
thereof (but in no event after the Expiration Date); provided, however, that if
such exercise of the Option would result in liability for the optionee under
Section 16(b) of the Exchange Act, then such three-month period automatically
shall be extended until the tenth day following the last date upon which
optionee has any liability under Section 16(b) (but in no event after the
Expiration Date).  If an optionee dies or becomes permanently and totally
disabled (within the meaning of Section 22(e)(3) of the Code) while employed by
the Company or an Affiliate or within the period that the Option remains
exercisable after Termination, Options then held (to the extent then
exercisable) may be exercised, in whole or in part, by the optionee, by the
optionee's personal representative or by the person to whom the Option is
transferred by devise or the laws of descent and distribution, at any time
within six months after the death or six months after the permanent and total
disability of the optionee or any longer period specified in the Option
Agreement or by amendment thereof (but in no event after the Expiration Date).
For purposes of this Section 6.1.7, "employment" includes service as a director
or as a consultant.  For purposes of this Section 6.1.7, an optionee's
employment shall not be deemed to terminate by reason of sick leave, military
leave or other leave of absence approved by the Administrator, if the period of
any such leave does not exceed 90 days or, if longer, if the optionee's right to
reemployment by the Company or any Affiliate is guaranteed either contractually
or by statute.

                                       5
<PAGE>
 
          6.1.8  Withholding and Employment Taxes.  At the time of exercise of
                 --------------------------------                             
an Option and as a condition thereto, or at such other time as the amount of
such obligations becomes determinable (the "Tax Date"), the optionee shall remit
to the Company in cash all applicable federal and state withholding and
employment taxes.  Such obligation to remit may be satisfied, if authorized by
the Administrator in its sole discretion, after considering any tax, accounting
and financial consequences, by the optionee's (i) delivery of a promissory note
in the required amount on such terms as the Administrator deems appropriate,
(ii) tendering to the Company previously owned shares of Stock or other
securities of the Company with a fair market value equal to the required amount,
or (iii) agreeing to have shares of Common Stock (with a fair market value equal
to the required amount) which are acquired upon exercise of the Option withheld
by the Company.

          6.1.9   Other Provisions.  Each Option granted under this Plan may
                  ----------------                                          
contain such other terms, provisions, and conditions not inconsistent with this
Plan as may be determined by the Administrator, and each ISO granted under this
Plan shall include such provisions and conditions as are necessary to qualify
the Option as an "incentive stock option" within the meaning of Section 422 of
the Code.

          6.1.10  Determination of Value.  For purposes of the Plan, the fair
                  ----------------------                                     
market value of Common Stock or other securities of the Company shall be
determined as follows:

          (a) If the stock of the Company is regularly quoted by a recognized
securities dealer, and selling prices are reported, its fair market value shall
be the closing price of such stock on the date the value is to be determined,
but if selling prices are not reported, its fair market value shall be the mean
between the high bid and low asked prices for such stock on the date the value
is to be determined (or if there are no quoted prices for the date of grant,
then for the last preceding business day on which there were quoted prices).

          (b) In the absence of an established market for the stock, the fair
market value thereof shall be determined in good faith by the Administrator,
with reference to the Company's net worth, prospective earning power, dividend-
paying capacity, and other relevant factors, including the goodwill of the
Company, the economic outlook in the Company's industry, the Company's position
in the industry, the Company's management, and the values of stock of other
corporations in the same or a similar line of business.

          6.1.11  Option Term.  Subject to Section 6.3.4, no Option shall be
                  -----------                                               
exercisable more than 10 years after the date of grant, or such lesser period of
time as is set forth in the stock option agreement (the end of the maximum
exercise period stated in the stock option agreement is referred to in this Plan
as the "Expiration Date").

                                       6
<PAGE>
 
     6.2  Terms and Conditions to Which Only NQOs Are Subject.  Options granted
          ---------------------------------------------------                  
under this Plan which are designated as NQOs shall be subject to the following
terms and conditions:

          6.2.1   Exercise Price.  (a) Except as set forth in Section 6.2.1(b),
                  --------------                                               
the exercise price of a NQO shall be not less than 85% of the fair market value
(determined in accordance with Section 6.1.10) of the stock subject to the
Option on the date of grant.

          (b) To the extent required by applicable laws, rules and regulations,
the exercise price of a NQO granted to any person who owns, directly or by
attribution under the Code (currently Section 424(d)), stock possessing more
than ten percent of the total combined voting power of all classes of stock of
the Company or of any Affiliate (a "Ten Percent Shareholder") shall in no event
be less than 110% of the fair market value (determined in accordance with
Section 6.1.10) of the stock covered by the Option at the time the Option is
granted.

     6.3  Terms and Conditions to Which Only ISOs Are Subject. Options granted
          ---------------------------------------------------                 
under this Plan which are designated as ISOs shall be subject to the following
terms and conditions:

          6.3.1   Exercise Price.  (a) Except as set forth in Section 6.3.1(b),
                  --------------                                               
the exercise price of an ISO shall be determined in accordance with the
applicable provisions of the Code and shall in no event be less than the fair
market value (determined in accordance with Section 6.1.10) of the stock covered
by the Option at the time the Option is granted.

          (b) The exercise price of an ISO granted to any Ten Percent
Shareholder shall in no event be less than 110% of the fair market value
(determined in accordance with Section 6.1.10) of the stock covered by the
Option at the time the Option is granted.

          6.3.2   Disqualifying Dispositions.  If stock acquired by exercise of
                  --------------------------                                   
an ISO granted pursuant to this Plan is disposed of in a "disqualifying
disposition" within the meaning of Section 422 of the Code (a disposition within
two years from the date of grant of the Option or within one year after the
transfer such stock on exercise of the Option), the holder of the stock
immediately before the disposition shall promptly notify the Company in writing
of the date and terms of the disposition and shall provide such other
information regarding the Option as the Company may reasonably require.

          6.3.3   Grant Date.  If an ISO is granted in anticipation of
                  ----------                                          
employment as provided in Section 5(d), the Option shall be deemed granted,
without further approval, on the date the grantee assumes the employment
relationship forming the basis for such grant, and, in addition, satisfies all
requirements of this Plan for Options granted on that date.

                                       7
<PAGE>
 
          6.3.4  Term.  Notwithstanding Section 6.1.11, no ISO granted to any
                 ----                                                        
Ten Percent Shareholder shall be exercisable more than five years after the date
of grant.

7.   MANNER OF EXERCISE
     ------------------

          (a) An optionee wishing to exercise an Option shall give written
notice to the Company at its principal executive office, to the attention of the
officer of the Company designated by the Administrator, accompanied by payment
of the exercise price and withholding taxes as provided in Sections 6.1.6 and
6.1.8. The date the Company receives written notice of an exercise hereunder
accompanied by payment of the exercise price will be considered as the date such
Option was exercised.

          (b) Promptly after receipt of written notice of exercise of an Option
and the payments called for by Section 7(a), the Company shall, without stock
issue or transfer taxes to the optionee or other person entitled to exercise the
Option, deliver to the optionee or such other person a certificate or
certificates for the requisite number of shares of stock.  An optionee or
permitted transferee of the Option shall not have any privileges as a
shareholder with respect to any shares of stock covered by the Option until the
date of issuance (as evidenced by the appropriate entry on the books of the
Company or a duly authorized transfer agent) of such shares.

8.   EMPLOYMENT OR CONSULTING RELATIONSHIP
     -------------------------------------

     Nothing in this Plan or any Option granted hereunder shall interfere with
or limit in any way the right of the Company or of any of its Affiliates to
terminate any optionee's employment or consulting at any time, nor confer upon
any optionee any right to continue in the employ of, or consult with, the
Company or any of its Affiliates.

9.   CONDITIONS UPON ISSUANCE OF SHARES
     ----------------------------------

     Shares of Common Stock shall not be issued pursuant to the exercise of an
Option unless the exercise of such Option and the issuance and delivery of such
shares pursuant thereto shall comply with all relevant provisions of law,
including, without limitation, the Securities Act of 1933, as amended (the
"Securities Act").

10.  NONEXCLUSIVITY OF THE PLAN
     --------------------------

     The adoption of the Plan shall not be construed as creating any limitations
on the power of the Company to adopt such other incentive arrangements as it may
deem desirable, including, without limitation, the granting of stock options
other than under the Plan.

                                       8
<PAGE>
 
11.  MARKET STANDOFF
     ---------------

     Each optionee, if so requested by the Company or any representative of the
underwriters in connection with any registration of the offering of any
securities of the Company under the Securities Act, shall not sell or otherwise
transfer any shares of Common Stock acquired upon exercise of Options during the
180-day period following the effective date of a registration statement of the
Company filed under the Securities Act; provided, however, that such restriction
shall apply only to the first registration statement of the Company to become
effective under the Securities Act after the date of adoption of this Plan which
includes securities to be sold on behalf of the Company to the public in an
underwritten public offering under the Securities Act.  The Company may impose
stop-transfer instructions with respect to securities subject to the foregoing
restriction until the end of such 180-day period.

12.  AMENDMENTS TO PLAN
     ------------------

     The Board may at any time amend, alter, suspend or discontinue this Plan.
Without the consent of an optionee, no amendment, alteration, suspension or
discontinuance may adversely affect outstanding Options except to conform this
Plan and ISOs granted under this Plan to the requirements of federal or other
tax laws relating to incentive stock options.  No amendment, alteration,
suspension or discontinuance shall require shareholder approval unless (a)
shareholder approval is required to preserve incentive stock option treatment
for federal income tax purposes or (b) the Board otherwise concludes that
shareholder approval is advisable.

13.  EFFECTIVE DATE OF PLAN; TERMINATION
     -----------------------------------

     This Plan shall become effective upon adoption by the Board provided,
however, that no Option shall be exercisable unless and until written consent of
the shareholders of the Company, or approval of shareholders of the Company
voting at a validly called shareholders' meeting, is obtained within twelve
months after adoption by the Board.  If such shareholder approval is not
obtained within such time, Options granted hereunder shall terminate and be of
no force and effect from and after expiration of such twelve-month period.
Options may be granted and exercised under this Plan only after there has been
compliance with all applicable federal and state securities laws.  This Plan
(but not Options previously granted under this Plan) shall terminate within ten
years from the date of its adoption by the Board.

14.  DELIVERY OF FINANCIAL STATEMENTS
     --------------------------------

     To the extent required by applicable laws, rules and regulations, the
Company shall deliver to each optionee financial statements of the Company at
least annually while such optionee holds an outstanding Option.

                                       9
<PAGE>
 
                               OSI SYSTEMS, INC.
                       INCENTIVE STOCK OPTION AGREEMENT



     THIS INCENTIVE STOCK OPTION AGREEMENT (the "Agreement"), is made as of the
___ day of _________ 19__ by and between OSI Systems, Inc., a California
corporation (the "Company"), and __________________________ ("Optionee").

                                 R E C I T A L

     Pursuant to the 1997 Stock Option Plan (the "Plan") of the Company, the
Board of Directors of the Company or a committee to which administration of the
Plan is delegated by the Board of Directors (in either case, the
"Administrator") has authorized the granting to Optionee of an incentive stock
option to purchase the number of shares of Common Stock of the Company specified
in Paragraph 1 hereof, at the price specified therein, such option to be for the
term and upon the terms and conditions hereinafter stated.

                               A G R E E M E N T

     NOW, THEREFORE, in consideration of the promises and of the undertakings of
the parties hereto contained herein, it is hereby agreed:

     1.   Number of Shares; Option Price. Pursuant to said action of the
          ------------------------------
Administrator, the Company hereby grants to Optionee the option ("Option") to
purchase, upon and subject to the terms and conditions of the Plan,
_______________ shares of Common Stock of the Company ("Shares") at the price of
$_________ per share.

     2.   Term. This Option shall expire on the day before the ________
          ----
anniversary (fifth anniversary if Optionee owns more than 10% of the voting
stock of the Company or an Affiliate of the Company on the date of this
Agreement) of the date hereof (the "Expiration Date") unless such Option shall
have been terminated prior to that date in accordance with the provisions of the
Plan or this Agreement. The term "Affiliate" as used herein shall have the
meaning as set forth in the Plan.

     3.   Shares Subject to Exercise. Shares subject to exercise shall be 25% of
          --------------------------
such Shares on and after the first anniversary of the date hereof, 50% of such
Shares on and after the second anniversary of the date hereof, 75% of such
Shares on and after the third anniversary of the date hereof and 100% of such
Shares on and after the fourth anniversary of the date hereof. All Shares shall
thereafter remain subject to exercise for the term specified in Paragraph 2
hereof, provided that Optionee is then and has continuously been in the employ
of the Company, or its Affiliate, subject, however, to the provisions of
Paragraph 6 hereof.

                                      10.
<PAGE>
 
     4.   Method and Time of Exercise.  The Option may be exercised by written
          ---------------------------                                         
notice delivered to the Company at its principal executive office stating the
number of shares with respect to which the Option is being exercised, together
with:

          (A) a check or money order made payable to the Company in the amount
of the exercise price and any withholding tax, as provided under Paragraph 5
hereof; or

          (B) if expressly authorized in writing by the Administrator, in its
sole discretion, at the time of the Option exercise, the tender to the Company
of shares of the Company's Common Stock owned by Optionee having a fair market
value, as determined by the Administrator, not less than the exercise price,
plus the amount of applicable federal, state and local withholding taxes; or

          (C) if expressly authorized in writing by the Administrator, in its
sole discretion, at the time of the Option exercise, the Optionee's full
recourse promissory note in a form approved by the Company; or

          (D) if any other method such as cashless exercise is expressly
authorized in writing by the Administrator, in its sole discretion, at the time
of the Option exercise, the tender of such consideration having a fair market
value, as determined by the Administrator, not less than the exercise price,
plus the amount of applicable federal, state and local withholding taxes.

Not less than 100 shares may be purchased at any one time unless the number
purchased is the total number purchasable under such Option at the time.  Only
whole shares may be purchased.

     5.   Tax Withholding.  In the event that this Option shall lose its
          ---------------                                               
qualification as an incentive stock option, as a condition to exercise of this
Option, the Company may require Optionee to pay over to the Company all
applicable federal, state and local taxes which the Company is required to
withhold with respect to the exercise of this Option.  At the discretion of the
Administrator and upon the request of Optionee, the minimum statutory
withholding tax requirements may be satisfied by the withholding of shares of
Common Stock of the Company otherwise issuable to Optionee upon the exercise of
this Option.

     6.   Exercise on Termination of Employment.  If for any reason other than
          -------------------------------------                               
death or permanent and total disability, Optionee ceases to be employed by the
Company or any of its Affiliates (such event being called a "Termination"), this
Option (to the extent then exercisable) may be exercised in whole or in part at
any time within three months of the date of such Termination, but in no event
after the Expiration Date; provided, however, that if such exercise of this
Option would result in liability for Optionee under Section 16(b) of the
Securities Exchange Act of 1934, then such three-month period automatically
shall be extended until the tenth day following the last date upon which
Optionee has any liability under Section 16(b), but in no event after the
Expiration Date.  If Optionee dies or becomes permanently and totally disabled
(as defined in the Plan) while employed by the Company or an Affiliate or within
the period that this Option remains exercisable after Termination, this Option
(to the extent then exercisable) may be exercised, in whole or in part, by
Optionee, by Optionee's personal

                                      11.
<PAGE>
 
representative or by the person to whom this Option is transferred by devise or
the laws of descent and distribution, at any time within six months after the
death or six months after the permanent and total disability of Optionee, but in
no event after the Expiration Date.  In the event this Option is treated as a
nonqualified stock option, then and to that extent, "employment" would include
service as a director or as a consultant.  For purposes of this Paragraph 6,
Optionee's employment shall not be deemed to terminate by reason of sick leave,
military leave or other leave of absence approved by the Administrator, if the
period of any such leave does not exceed 90 days or, if longer, if Optionee's
right to reemployment by the Company or any Affiliate is guaranteed either
contractually or by statute.

     7.   Nontransferability.  This Option may not be assigned or transferred
          ------------------                                                 
except by will or by the laws of descent and distribution, and may be exercised
only by Optionee during his lifetime and after his death, by his personal
representative or by the person entitled thereto under his will or the laws of
intestate succession.

     8.   Optionee Not a Shareholder.  Optionee shall have no rights as a
          --------------------------                                     
shareholder with respect to the Common Stock of the Company covered by this
Option until the date of issuance of a stock certificate or stock certificates
to him upon exercise of this Option.  No adjustment will be made for dividends
or other rights for which the record date is prior to the date such stock
certificate or certificates are issued.

     9.   No Right to Employment.  Nothing in the Option granted hereby shall
          ----------------------                                             
interfere with or limit in any way the right of the Company or of any of its
Affiliates to terminate Optionee's employment or consulting at any time, nor
confer upon Optionee any right to continue in the employ of, or consult with,
the Company or any of its Affiliates.

     10.  Modification and Termination.  The rights of Optionee are subject to
          ----------------------------                                        
modification and termination in certain events as provided in Sections 6.1 and
6.3 of the Plan.

     11.  Restrictions on Sale of Shares.  Optionee represents and agrees that,
          ------------------------------                                       
upon his exercise of this Option, in whole or in part, unless there is in effect
at that time under the Securities Act of 1933 a registration statement relating
to the Shares issued to him, he will acquire the Shares issuable upon exercise
of this Option for the purpose of investment and not with a view to their resale
or further distribution, and that upon each exercise thereof he shall furnish to
the Company a written statement to such effect, satisfactory to the Company in
form and substance.  Optionee agrees that any certificates issued upon exercise
of this Option may bear a legend indicating that their transferability is
restricted in accordance with applicable state or federal securities law.  Any
person or persons entitled to exercise this Option under the provisions of
Paragraphs 5 and 6 hereof shall, upon each exercise of this Option under
circumstances in which Optionee would be required to furnish such a written
statement, also furnish to the Company a written statement to the same effect,
satisfactory to the Company in form and substance.

     12.  Plan Governs.  This Agreement and the Option evidenced hereby are made
          ------------                                                          
and granted pursuant to the Plan and are in all respects limited by and subject
to the express terms

                                      12.
<PAGE>
 
and provisions of the Plan, as it may be construed by the Administrator.  It is
intended that this Option shall qualify as an incentive stock option as defined
by Section 422 of the Internal Revenue Code of 1986, as amended (the "Code"),
and this Agreement shall be construed in a manner which will enable this Option
to be so qualified.  Optionee hereby acknowledges receipt of a copy of the Plan.

     13.  Notices.  All notices to the Company shall be addressed to the Chief
          -------                                                             
Financial Officer at the principal executive office of the Company at 12525
Chadron Avenue, Hawthorne, California 90250, and all notices to Optionee shall
be addressed to Optionee at the address of Optionee on file with the Company or
its subsidiary, or to such other address as either may designate to the other in
writing.  A notice shall be deemed to be duly given if and when enclosed in a
properly addressed sealed envelope deposited, postage prepaid, with the United
States Postal Service.  In lieu of giving notice by mail as aforesaid, written
notices under this Agreement may be given by personal delivery to Optionee or to
the Chief Financial Officer (as the case may be).

     14.  Sale or Other Disposition.  Optionee understands that, under current
          -------------------------                                           
law, beneficial tax treatment resulting from the exercise of this Option will be
available only if certain requirements of the Code are satisfied, including
without limitation, the requirement that no disposition of Shares acquired
pursuant to exercise of this Option be made within two years from the grant date
or within one year after the transfer of Shares to him or her.  If Optionee at
any time contemplates the disposition (whether by sale, gift, exchange, or other
form of transfer) of any such Shares, he or she will first notify the Company in
writing of such proposed disposition and cooperate with the Company in complying
with all applicable requirements of law, which, in the judgment of the Company,
must be satisfied prior to such disposition.  In addition to the foregoing,
Optionee hereby agrees that before Optionee disposes (whether by sale, exchange,
gift, or otherwise) of any Shares acquired by exercise of this Option within two
years of the grant date or within one year after the transfer of such Shares to
Optionee upon exercise of this Option, Optionee shall promptly notify the
Company in writing of the date and terms of the proposed disposition and shall
provide such other information regarding the Option as the Company may
reasonably require immediately before such disposition.  Said written notice
shall state the date of such proposed disposition, and the type and amount of
the consideration to be received for such Share or Shares by Optionee in
connection therewith.  In the event of any such disposition, the Company shall
have the right to require Optionee to immediately pay the Company the amount of
taxes (if any) which the Company is required to withhold under federal and/or
state law as a result of the granting or exercise of the Option and the
disposition of the Shares.

                                      13.
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date and year first above written.

                                      OSI SYSTEMS, INC.


                                      By ________________________
                                         Name:
                                         Title:

                                      OPTIONEE


                                           ______________________
                                      Name:

                                      Address:

                                           ______________________
                                           ______________________
                                           ______________________

                                      14.
<PAGE>
 
                               OSI SYSTEMS, INC.
                      NONQUALIFIED STOCK OPTION AGREEMENT



     THIS NONQUALIFIED STOCK OPTION AGREEMENT (the "Agreement"), is made as of
the _____ day of ______________, 19___ by and between OSI Systems, Inc., a
California corporation (the "Company"), and ____________________ ("Optionee").

                                 R E C I T A L

     Pursuant to the 1997 Stock Option Plan (the "Plan") of the Company, the
Board of Directors of the Company or a committee to which administration of the
Plan is delegated by the Board of Directors (in either case, the
"Administrator") has authorized the granting to Optionee of a nonqualified stock
option to purchase the number of shares of Common Stock of the Company specified
in Paragraph 1 hereof, at the price specified therein, such option to be for the
term and upon the terms and conditions hereinafter stated.

                               A G R E E M E N T

     NOW, THEREFORE, in consideration of the promises and of the undertakings of
the parties hereto contained herein, it is hereby agreed:

     1.   Number of Shares; Option Price.  Pursuant to said action of the
          ------------------------------                                 
Administrator, the Company hereby grants to Optionee the option ("Option") to
purchase, upon and subject to the terms and conditions of the Plan, ________
shares of Common Stock of the Company ("Shares") at the price of $________ per
share.

     2.   Term.  This Option shall expire on the day before the ________
          ----                                                          
anniversary of the date hereof (the "Expiration Date") unless such Option shall
have been terminated prior to that date in accordance with the provisions of the
Plan or this Agreement.  The term "Affiliate" as used herein shall have the
meaning as set forth in the Plan.

     3.   Shares Subject to Exercise.  Shares subject to exercise shall be 25%
          --------------------------                                          
of such Shares on and after the first anniversary of the date hereof, 50% of
such Shares on and after the second anniversary of the date hereof, 75% of such
Shares on and after the third anniversary of the date hereof and 100% of such
Shares on and after the fourth anniversary of the date hereof.  All Shares shall
thereafter remain subject to exercise for the term specified in Paragraph 2
hereof, provided that Optionee is then and has continuously been in the employ
of or providing services to the Company, or its Affiliate, subject, however, to
the provisions of Paragraph 6 hereof.

                                      15.
<PAGE>
 
     4.   Method and Time of Exercise.  The Option may be exercised by written
          ---------------------------                                         
notice delivered to the Company at its principal executive office stating the
number of shares with respect to which the Option is being exercised, together
with:

          (A) a check or money order made payable to the Company in the amount
of the exercise price and any withholding tax, as provided under Paragraph 5
hereof; or

          (B) if expressly authorized in writing by the Administrator, in its
sole discretion, at the time of the Option exercise, the tender to the Company
of shares of the Company's Common Stock owned by Optionee having a fair market
value, as determined by the Administrator, not less than the exercise price,
plus the amount of applicable federal, state and local withholding taxes; or

          (C) if expressly authorized in writing by the Administrator, in its
sole discretion, at the time of the Option exercise, the Optionee's full
recourse promissory note in a form approved by the Company; or

          (D) if any other method such as cashless exercise is expressly
authorized in writing by the Administrator, in its sole discretion, at the time
of the Option exercise, the tender of such consideration having a fair market
value, as determined by the Administrator, not less than the exercise price,
plus the amount of applicable federal, state and local withholding taxes.

Not less than 100 shares may be purchased at any one time unless the number
purchased is the total number purchasable under such Option at the time.  Only
whole shares may be purchased.

     5.   Tax Withholding.  As a condition to exercise of this Option, the
          ---------------                                                 
Company may require Optionee to pay over to the Company all applicable federal,
state and local taxes which the Company is required to withhold with respect to
the exercise of this Option. At the discretion of the Administrator and upon the
request of Optionee, the minimum statutory withholding tax requirements may be
satisfied by the withholding of shares of Common Stock of the Company otherwise
issuable to Optionee upon the exercise of this Option.

     6.   Exercise on Termination of Employment.  If for any reason other than
          -------------------------------------                               
death or permanent and total disability, Optionee ceases to be employed by the
Company or any of its Affiliates (such event being called a "Termination"), this
Option (to the extent then exercisable) may be exercised in whole or in part at
any time within three months of the date of such Termination, but in no event
after the Expiration Date; provided, however, that if such exercise of this
Option would result in liability for Optionee under Section 16(b) of the
Securities Exchange Act of 1934, then such three-month period automatically
shall be extended until the tenth day following the last date upon which
Optionee has any liability under Section 16(b), but in no event after the
Expiration Date.  If Optionee dies or becomes permanently and totally disabled
(as defined in the Plan) while employed by the Company or an Affiliate or within
the period that this Option remains exercisable after Termination, this Option
(to the extent then exercisable) may be exercised, in whole or in part, by
Optionee, by Optionee's personal

                                      16.
<PAGE>
 
representative or by the person to whom this Option is transferred by devise or
the laws of descent and distribution, at any time within six months after the
death or six months after the permanent and total disability of Optionee, but in
no event after the Expiration Date.  For purposes of this Paragraph 6,
"employment" includes service as a director or as a consultant.  For purposes of
this Paragraph 6, Optionee's employment shall not be deemed to terminate by
reason of sick leave, military leave or other leave of absence approved by the
Administrator, if the period of any such leave does not exceed 90 days or, if
longer, if Optionee's right to reemployment by the Company or any Affiliate is
guaranteed either contractually or by statute.

     7.   Nontransferability.  Except with the express written approval of the
          ------------------                                                  
Administrator, this Option may not be assigned or transferred except by will or
by the laws of descent and distribution, and may be exercised only by Optionee
during his lifetime and after his death, by his personal representative or by
the person entitled thereto under his will or the laws of intestate succession.

     8.   Optionee Not a Shareholder.  Optionee shall have no rights as a
          --------------------------                                     
shareholder with respect to the Common Stock of the Company covered by this
Option until the date of issuance of a stock certificate or stock certificates
to him upon exercise of this Option.  No adjustment will be made for dividends
or other rights for which the record date is prior to the date such stock
certificate or certificates are issued.

     9.   No Right to Employment.  Nothing in the Option granted hereby shall
          ----------------------                                             
interfere with or limit in any way the right of the Company or of any of its
Affiliates to terminate Optionee's employment or consulting at any time, nor
confer upon Optionee any right to continue in the employ of, or consult with,
the Company or any of its Affiliates.

     10.  Modification and Termination.  The rights of Optionee are subject to
          ----------------------------                                        
modification and termination in certain events as provided in Sections 6.1 and
6.2 of the Plan.

     11.  Restrictions on Sale of Shares.  Optionee represents and agrees that
          ------------------------------                                      
upon his exercise of this Option, in whole or in part, unless there is in effect
at that time under the Securities Act of 1933 a registration statement relating
to the Shares issued to him, he will acquire the Shares issuable upon exercise
of this Option for the purpose of investment and not with a view to their resale
or further distribution, and that upon such exercise thereof he will furnish to
the Company a written statement to such effect, satisfactory to the Company in
form and substance.  Optionee agrees that any certificates issued upon exercise
of this Option may bear a legend indicating that their transferability is
restricted in accordance with applicable state and federal securities law.  Any
person or persons entitled to exercise this Option under the provisions of
Paragraphs 5 and 6 hereof shall, upon each exercise of this Option under
circumstances in which Optionee would be required to furnish such a written
statement, also furnish to the Company a written statement to the same effect,
satisfactory to the Company in form and substance.

                                      17.
<PAGE>
 
     12.  Plan Governs.  This Agreement and the Option evidenced hereby are made
          ------------                                                          
and granted pursuant to the Plan and are in all respects limited by and subject
to the express terms and provisions of the Plan, as it may be construed by the
Administrator.  Optionee hereby acknowledges receipt of a copy of the Plan.

     13.  Notices.  All notices to the Company shall be addressed to the Chief
          -------                                                             
Financial Officer at the principal executive office of the Company at 12525
Chadron Avenue, Hawthorne, California 90250, and all notices to Optionee shall
be addressed to Optionee at the address of Optionee on file with the Company or
its subsidiary, or to such other address as either may designate to the other in
writing.  A notice shall be deemed to be duly given if and when enclosed in a
properly addressed sealed envelope deposited, postage prepaid, with the United
States Postal Service.  In lieu of giving notice by mail as aforesaid, written
notices under this Agreement may be given by personal delivery to Optionee or to
the Chief Financial Officer (as the case may be).

     14.  Sale or Other Disposition.  If Optionee at any time contemplates the
          -------------------------                                           
disposition (whether by sale, gift, exchange, or other form or transfer) of any
Shares acquired by exercise of this Option, he or she shall first notify the
Company in writing of such proposed disposition and cooperate with the Company
in complying with all applicable requirements of law, which, in the judgment of
the Company, must be satisfied prior to such disposition.

                                      18.
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the date and year first above written.

                                  OSI SYSTEMS, INC.               
                                                                 
                                                                 
                                  By__________________________   
                                   Name:                         
                                   Title:                        
                                                                 
                                  OPTIONEE                       
                                                                 
                                                                 
                                  By__________________________   
                                   Name:                         
                                                                 
                                  Address:                       
                                                                 
                                  ____________________________   
                                  ____________________________   
                                  ____________________________    

                                      19.

<PAGE>
 
                                                                    EXHIBIT 10.8



EXPATRIATE EMPLOYMENT AGREEMENT

        This Agreement is made and effective this 11th day of July, 1995, by and
between Opto Sensors, Inc., a California corporation having offices at 12525 
Chadron Ave., Hawthorne, CA 90250 ("OSI") and Thomas K. Hickman, an individual 
residing at 10 Miwok Way, Inverness, CA 94937 ("Hickman").

        OSI, through various subsidiary corporations, designs and manufactures 
electronic assemblies, among which are Opto Sensors, Singapore, a Singapore 
corporation having offices at 996 Bandemeer Road, #04-01/02, Singapore 1233 
("OSS") a wholly-owned subsidiary of OSI, and Opto Sensors, Malaysia, a 
Malaysian corporation having offices at Tebrau Industrial Estate No. 1, #8 Jalam
Firma 2/2, 81200 Johor Bahru, Johor, Malaysia, a wholly-owned subsidiary of OSI.

        OSI desires to employ Hickman as Managing Director of OSS and OSM for a 
period of not less than two years and Hickman agrees to serve as Managing 
Director for such term. After the initial term of two years, both parties agree 
to give a minimum of six months notice to the other of intent to terminate this
agreement.

        OSI agrees to offer Hickman a comparable position in the corporation 
upon termination of this agreement.

        OSI will, with the full cooperation of Hickman but at the company's 
expense, assure that work permits or other authority to work in Singapore and 
Malaysia will be obtained and that permanent resident visas are obtained for 
Malaysia for Hickman and his wife.

        OSI agrees to pay Hickman, from the time of his arrival in Malaysia, a 
salary of One Hundred Twenty Five Thousand dollars ($125,000) per annum for the 
first year of this agreement in monthly installments of Ten Thousand Four 
Hundred Sixteen Dollars and Sixty Seven Cents ($10,416.67) to be deposited in 
accounts in the United States, Singapore and Malaysia as directed by Hickman. At
the beginning of this agreement, such deposits will be:

        a. Seven Thousand Seven Hundred Fifty Dollars ($7,750.00US)

        b. One Thousand Three Hundred Thirty Three and 33/100 US dollars 
($1333.33US) in Singapore at an initial Exchange rate of $1.00 US equals $1.40

<PAGE>
 
Singapore or One Thousand Eight Hundred Sixty Six and 67/100 Singapore Dollars 
($1866.67S),

     c. One Thousand Three Hundred Thirty Three and 33/100 US Dollars 
($1333.33US) in Malaysia at a initial Exchange rate of $1.00 US equals $2.45 
Malaysian or Three Thousand Two Hundred Sixty Six and 66/100 Malaysian Ringgit 
($3266.66M)

     d. During the first month of residence in Malaysia, OSI will pay to Hickman
the Malaysian Ringgit equivalent Five Thousand US Dollars, or Twelve Thousand 
two hundred fifty Ringgit ($12,250.00M) as a one time payment for initial 
outfitting in Malaysia.  Such payment will be deducted by OSI from that month's 
deposit to Hickman's US account.

     e. The rates of exchange for deposits made in Singapore and Malaysia shall
remain fixed for the first year of Hickman's employment at OSS/OSM and will be 
reexamined by the parties at the beginning of each successive year.

     OSI agrees to provide housing selected by Hickman and utilities, for which 
payment will be made by OSM, for which Hickman agrees to reimburse the company 
or, alternatively, agrees to have the company deduct from Hickman's salary prior
to deposit in the US, Singapore or Malaysia.

     OSI agrees to provide an automobile selected by Hickman through OSM to
Hickman for which Hickman agrees to reimburse the company or, alternatively,
agrees to have the company deduct from Hickman's salary prior to deposit in the
US, Singapore or Malaysia. Automobile insurance will be provided by the company
as a company car.

     OSI agrees to pay for packing, freight and cartage of Hickman's household 
goods to the place of residence in Malaysia, or to pay packing, cartage and 
storage of household goods not taken to Malaysia.  Hickman agrees to schedule 
movement of household goods by sea and air to provide for a lowest cost 
combination of household goods move and temporary living accomodation and meal 
expenses.  Estimates for material, packing, storage and transport will be 
provided for OSI review and agreement prior to Hickman's move to Malaysia.

     OSI agrees, upon termination of this agreement and Hickman's employment in 
Malaysia, to pay to return Hickman's household goods from Malaysia or from 
storage whether or not Hickman returns to the US as an employee of OSI or one of
its subsidiaries.

     OSI agrees to provide temporary living accomodations and meal expenses for 
a period of not more than two weeks for Hickman and his wife during the period 
Hickman's household goods are in transit.

<PAGE>
 
     OSI agrees to award Hickman options for Five Thousand Shares of OSI stock
effective upon the date of Hickman's employment at OSS and OSM at the then-
current value for management incentive options and, further, agrees to award
Hickman an additional 5000 options for OSI stock, at the then-current value for
such options, if OSS/OSM achieve a pre-tax profit of $1,000,000US or more during
OSI's 1995/96 fiscal year.

     OSI will pay, or reimburse Hickman for, annual round-trip home-leave coach
airfare for himself and his wife to and from his current place of residence at a
time of Hickman's choosing provided such time is not inconsistent with the needs
of the company.

     OSI will continue Hickman's current AETNA PPO Health Insurance coverage 
with the same employee contribution as at present, or, upon any change of 
carrier by OSI or such subsidiary as may provide for Hickman's insurance, 
provide for transfer to such new carrier.

     OSI will pay for a Singapore American Club membership for business use of 
Hickman as Managing Director of OSI/OSM.  Hickman will pay for, or reimburse the
company for, personal use of the club facilities.

     Portions of this agreement may be duplicated in separate agreements 
pertaining solely to that portion of Hickman's employment applicable to 
Singapore or Malaysia.  This agreement shall take precedence over any such other
agreement and, in respect of any errors, omissions or conflict in wording 
between this and any other such agreements, the wording or content of this 
agreement shall be deemed to be correct.

For OptoSensors, Inc.:



 /s/ Ajay Mehra      date: 7/12/95    /s/ Thomas K. Hickman   date: 7/12/95
- ------------------        --------   ----------------------       --------
                                     Thomas K. Hickman

its: Chief Financial Officer

<PAGE>
 
AGREEMENT FOR EXPATRIATE EMPLOYMENT IN SINGAPORE

1.      This Agreement is made and effective this 11th day of July, 1995, by 
and between Opto Sensors, Inc., a California corporation having offices at 12525
Chadron Ave., Hawthorne, CA 90250 ("OSI") and Thomas K. Hickman, an individual 
residing at 10 Miwok Way, Inverness, CA 94937 ("Hickman").

2.      OSI, through various subsidiary corporations, designs and manufactures 
electronic assemblies, among which are Opto Sensors, Singapore, a Singapore 
corporation having offices at 996 Bendemeer Road, #04-01/02, Singapore 1233 
("OSS") a wholly-owned subsidiary of OSI.

3.      OSI desires to employ Hickman as Managing Director of OSS and OSM for a
period of not less than two years and Hickman agrees to serve as Managing
Director for such term. After the initial term of two years, both parties agree
to give a minimum of six month's notice to the other of intent to terminate this
agreement.

4.      OSI will, with the full cooperation of Hickman but at the company's 
expense, assure that work permits or other authority to work in Singapore will 
be obtained and that permanent resident visas are obtained for Malaysia for 
Hickman and his wife.

5.      For service as Managing Director of OSS, OSI agrees to pay Hickman a 
monthly salary of One Thousand Three Hundred Thirty Three and 33/100 US Dollars 
($1333.33US) in Singapore at an initial Exchange rate of $1.00 US equals $1.40 
Singapore or One Thousand Eight Hundred Sixty Six and 67/100 Singapore Dollars 
($1866.67S),

6.      The rates of exchange for deposits made in Singapore and  Malaysia
shall remain fixed for the first year of Hickman's employment at OSS/OSM and
will be reexamined by the parties at the beginning of each successive year.

7.      OSI agrees to provide housing and utilities for Hickman and his wife in 
Johor Bahru, Malaysis, for which payment will be made by OSM.

8.      OSI agrees to pay for packing, freight and cartage of Hickman's 
household goods to the place of residence in Malaysia, or to pay packing, 
cartage and storage of household goods not taken to Malaysia. Hickman agrees to 
schedule


        
<PAGE>
 
movement of household goods by sea and air to provide for a lowest cost
combination of household goods move and temporary living accommodation and
meal expenses. Estimates for material, packing, storage and transport will be
provided for OSI review and agreement prior to Hickman's move to Malaysia.

9.   OSI agrees, upon termination of this agreement and Hickman's employment in 
Malaysia, to pay to return Hickman's household goods from Malaysia or from 
storage whether or not Hickman returns to the US as an employee of OSI or one 
of its subsidiaries.

10. OSI agrees to provide temporary living accommodations and meal expenses for
Hickman and his wife during the period Hickman's household goods are in transit.

11.  OSI will pay, or reimburse Hickman for, annual round-trip home-leave coach 
airfare for himself and his wife to and from his current place of residence at a
time of Hickman's choosing provided such time is not inconsistent with the needs
of the company.

12.  OSI will continue Hickman's current AETNA PPO Health Insurance coverage, 
or, upon any change of carrier by OSI or such subsidiary as may provide for 
Hickman's insurance, provide for transfer to such new carrier.

For OptoSensors, Inc.:

/s/ Ajay Mehra    date: 7/12/95   /s/ Thomas K. Hickman    date: 7/12/95
- ----------------       --------   ---------------------         ---------
                                      Thomas K. Hickman
its: Chief Financial Officer

<PAGE>
 
                AGREEMENT FOR EXPATRIATE EMPLOYMENT IN MALAYSIA

1.  This Agreement is made and effective this 11th day of July, 1995, by and 
between Opto Sensors, Inc., a California corporation having offices at 12525 
Chadron Ave., Hawthorne, CA 90250 ("OSI") and Thomas K. Hickman, an individual 
residing at 10 Miwok Way, Inverness, CA 94937 ("Hickman").

2.  OSI, through various subsidiary corporations, designs and manufactures 
electronic assemblies, among which are Opto Sensors, Malaysia, a Malaysian 
corporation having offices at Tebrau Industrial Estate No. 1, #8 Jalam Firma 
2/2, 81200 Johor Bahru, Johor, Malaysia, a wholly-owned subsidiary of OSI.

3.  OSI desires to employ Hickman as Managing Director of OSM for a period of 
not less than two years and Hickman agrees to serve as Managing Director for 
such term. After the initial term of two years, both parties agree to give a 
minimum of six month's notice to the other of intent to terminate this 
agreement.

4.  OSI will, with the full cooperation of Hickman but at the company's expense,
assure that work permits or other authority to work in Malaysia will be obtained
and that permanent resident visas are obtained for Malaysia for Hickman and his 
wife.

5.  For service as Managing Director of OSM, OSI agrees to pay Hickman a monthly
salary of One Thousand Three Hundred Thirty Three and 33/100 US Dollars 
($1333.33US) in Malaysia at a initial Exchange rate of $1.00 US equals $2.45 
Malaysian or Three Thousand Two Hundred Sixty Six and 66/100 Malaysian Ringgit 
($3266.66M).

6.  During the first month of residence in Malaysia, OSI will pay to Hickman the
Malaysian Ringgit equivalent Five Thousand Dollars, or Twelve Thousand Two 
Hundred Fifty Ringgit ($12,250.00M) as a one time payment for initial outfitting
in Malaysia.

7.  The rates of exchange for deposits made in Singapore and Malaysia shall 
remain fixed for the first year of Hickman's employment at OSS/OSM and will be 
reexamined by the parties at the beginning of each successive year.

8.  OSI agrees to provide housing and utilities for Hickman and his wife in 
Johor Bahru for which payment will be made by OSM.

9.  OSI agrees to provide an automobile through OSM, of Malaysian registration, 
for business and personal use. Automobile insurance will be provided by the 
company as a company car.
<PAGE>
 
10.  OSI agrees to pay for packing, freight and cartage of Hickman's household 
goods to the place of residence in Malaysia, or to pay packing, cartage and 
storage of household goods not taken to Malaysia. Hickman agrees to schedule 
movement of household goods by sea and air to provide for a lowest cost 
combination of household goods move and temporary living accommodation and meal 
expenses. Estimates for material, packing, storage and transport will be 
provided for OSI review and agreement prior to Hickman's move to Malaysia.

11.  OSI agrees, upon termination of this agreement and Hickman's employment in 
Malaysia, to pay to return Hickman's household goods from Malaysia or from 
storage whether or not Hickman returns to the US as an employee of OSI or one of
its subsidiaries.

12.  OSI agrees to provide temporary living accommodations and meal expenses for
Hickman and his wife during the period Hickman's household goods are in transit.

13.  OSI will pay, or reimburse Hickman for, annual round-trip home-leave coach 
airfare for himself and his wife to and from his current place of residence at a
time of Hickman's choosing provided such time is not inconsistent with the needs
of the company.

14.  OSI will continue Hickman's current AETNA PPO Health Insurance coverage, 
or, upon any change of carrier by OSI or such subsidiary as may provide for 
Hickman's insurance, provide for transfer to such new carrier.


For OptoSensors, Inc.:

/s/ Ajay Mehra         date:7/12/95  /s/ Thomas K. Hickman  date:7/12/95
- ----------------------               ---------------------
its: Chief Financial Officer             Thomas K. Hickman


<PAGE>
 
                                                                   EXHIBIT 10.11

                            JOINT VENTURE AGREEMENT

                                 by and among

                              OPTO-SENSORS, INC.

                                      and

                   ELECTRONICS CORPORATION OF INDIA, LIMITED

                        Dated as of 4th January, 1994.
<PAGE>
 
                            JOINT VENTURE AGREEMENT
                            -----------------------


     THIS JOINT VENTURE AGREEMENT (this "Agreement") is made as of the 4th day
of January, 1994 by and among Opto-Sensors,Inc. ("OSI"), a corporation organized
under the laws of the State of California, U.S.A., and having its principal
executive office at 12525 Chadron Avenue, Hawthorne, California 90250, U.S.A.;
Electronics Corporation of India, Limited ("ECIL"), a corporation organized
under the laws of India and having its registered office at Hyderabad, India
(OSI and ECIL are collectively referred to as the "Stockholders"); and the
Company (as defined in the first recital hereinbelow)).

     WHEREAS, OSI and ECIL desire to enter into this Agreement in order to,
inter alia, organize a limited liability joint stock corporation under the laws
of India (the "Company") to manufacture, assemble, test, market, sell and
service the Products (as defined in Section 1.16 hereof) throughout India, and
any other territories as are subsequently agreed upon in writing by both of the
Stockholders (collectively, the "Territory"), on the terms and conditions set
forth hereinafter; and

     WHEREAS, the parties hereto desire to proceed with the establishment and
operation of the Company upon the terms and conditions hereinafter set forth.

     NOW, THEREFORE, in consideration of the foregoing and the mutual covenants
hereinafter set forth, the parties hereto hereby agree as follows:

                                   ARTICLE 1
                                  DEFINITIONS

     As used in this Agreement, the following terms shall, unless  the context
otherwise requires, have the meanings respectively ascribed to them below:

     1.1  "ACT" shall have the meaning ascribed to it in Section 2.1 hereof.

     1.2  "AFFILIATE" shall mean any individual or entity which directly, or
indirectly through one or more intermediaries, controls or is controlled by, or
is under common control with, the party specified by virtue of fifty-one percent
(51%) or greater direct or indirect equity ownership (excluding holdings by the
Government of India and by the other Directors of the Company.)

     1.3  "ARTICLES" shall have the meaning ascribed to it in Section 2.5
hereof.

                                      -1-
<PAGE>
 
     1.4  "BUSINESS" shall have the meaning ascribed to it in Section 12.2
hereof.

     1.5  "COMPANY" shall have the meaning ascribed to it in the first recital
hereto.

     1.6  "COMPONENTS" shall have the meaning ascribed to it in Section 6.1
hereof.

     1.7  "DEFAULTING STOCKHOLDER" shall have the meaning ascribed to it in
Section 3.5 hereof.

     1.8  "DISCLOSED PROPRIETARY TECHNOLOGY" shall have the meaning ascribed to
it in Section 12.3 hereof.

     1.9  "ECIL" shall have the meaning ascribed to it in the preamble hereto.

     1.10 "EFFECTIVE DATE" shall have the meaning ascribed to it in Section 11.1
hereof.

     1.11 "FISCAL YEAR" shall have the meaning ascribed to it in Section 2.10
hereof.

     1.12 "LICENSES" shall have the meaning ascribed to it in Section 5.1 (a)
hereof.

     1.13 "MEMORANDUM" shall have the meaning ascribed to it in Section 2.6
hereof.

     1.14 "OSI" shall have the meaning ascribed to it in the preamble hereto.

     1.15 "OWNERSHIP PERCENTAGES" shall have the meaning ascribed to it in
Section 3.2 hereof.

     1.16 "PRODUCTS" shall mean single and multi-energy X-ray baggage inspection
systems, explosive detectors, walk-through metal detectors and related security
products as itemized on Schedule A attached hereto.

     1.17 "PROPRIETARY TECHNOLOGY" shall mean engineering and technical data and
information, know-how, trademarks and trade secrets, patentable and unpatentable
inventions and confidential information.

     1.18 "RECIPIENT" shall have the meaning ascribed to it in Section 12.3
hereof.

     1.19 "RSPI" shall mean and refer to Rapiscan Security Products, Inc., a
California corporation.

                                      -2-
<PAGE>
 
     1.20 "STOCKHOLDERS" shall have the meaning ascribed to it in the preamble
hereto.

     1.21 "TERRITORY" shall have the meaning ascribed to it in the first recital
hereto.

                                   ARTICLE 2
                             FORMATION OF COMPANY

     2.1  Formation: Within [fifteen (15)] days following the Effective Date,
          ---------                                                          
or, if not reasonably practicable within the aforesaid period, as soon
thereafter as is reasonably practicable, the Stockholders shall cause the
Company to be organized and registered under the Indian Companies Act, 1956 (the
"Act"), as a limited liability joint stock corporation.

     2.2  Name: The name of the Company shall be "ECIL-RAPISCAN SECURITY
          ----                                                          
PRODUCTS LIMITED".

     2.3  Office: The registered office of the Company shall be located at
          ------                                                          
Hyderabad, India.

     2.4  Business Purposes: The general business purposes of the Company shall
          -----------------                                                    
be to: (i) arrange for the manufacture, assembly and testing of the Products in
India, (ii) market and sell the Products throughout the Territory, (iii) service
the Products sold throughout the Territory, and (iv) engage in such other
activities as may be incidental or necessary to the foregoing.

     2.5  Articles of Association: The Articles of Association of the Company
          -----------------------                                            
(the "Articles") shall conform with the terms and provisions of this Agreement
and shall set forth such other provisions as are required under the laws of
India or are generally included in articles of association of limited liability
joint stock corporations organized under the Act.

     2.6  Memorandum of Association: The Memorandum of Association of the
          -------------------------                                      
Company (the "Memorandum") shall conform with the terms and provision of this
Agreement and set forth such other provisions as are required under the laws of
India or are generally included in memoranda of association of limited liability
joint stock corporations organized under the Act.

     2.7  Other Filings: The Stockholders shall at all times cause the Company
          -------------                                                       
to prepare and file all filings, reports, notices and other documents or
instruments as may be necessary or appropriate to maintain the valid and legal
existence of the Company under the laws of India.

                                      -3-
<PAGE>
 
     2.8  Organizational Expenses: All costs and expenses related to the
          -----------------------                                       
organization and registration of the Company shall be borne and promptly paid by
ECIL, provided that, the Company shall reimburse ECIL for the reasonable amounts
of money actually spent by ECIL after January 1, 1994 in forming the Company and
in obtaining the requisite approvals pursuant to Section 12.1 hereof.  Such
reimbursements shall exclude all costs and expenses incurred by ECIL (including
legal and other professional fees) (i) in the drafting and finalizing of the
Articles, the Memorandum and any other organizational document, and (ii) in
their filing with the relevant authorities pursuant hereto.

     2.9  Ratification: As soon as practicable following its organization, the
          ------------                                                        
Stockholders shall cause the Company to ratify and confirm this Agreement
through the execution hereof by its President and Financial Controller.  Upon
such execution, the Company shall become a party to, and shall be bound by all
of the provisions of this Agreement.

     2.10 Fiscal Year: The fiscal year ("Fiscal Year") of the Company shall end
          -----------                                                          
on the 31st of March each calendar year.

                                   ARTICLE 3
                                CAPITALIZATION

     3.1  Capital Stock: The authorized capital stock of the Company shall
          -------------                                                   
consist of ten (10) lakh shares of a single class of equity shares having a par
value of Ten Rupees (Rs.10) per share.  Except as may be otherwise agreed upon
in writing by the Stockholders, the Company shall have no other classes of
capital stock.

     3.2  Initial Capital:  The initial paid-up capital of the Company shall
          ---------------                                                   
consist of the sum of Rs.50,00,000 (Rupees fifty lakhs).  Within five (5) days
after the Effective Date, each Stockholder shall subscribe for equity shares of
the Company in the respective percentages (as may be modified in accordance with
the terms hereof, from time to time, (the "Ownership Percentages") set forth
opposite its name below:

<TABLE>
<CAPTION>
                                 Subscription    Ownership
 Stockholder     No. of Shares      Price       Percentage
 -----------     -------------   ------------   ---------- 
<S>              <C>             <C>            <C>
    OSI             2,55,000       25,50,000         51%
    ECIL            2,45,000       24,50,000         49%
TOTAL               5,00,000       50,00,000        100%
</TABLE>

     3.3  Payment: All subscriptions by the Stockholders for the Company's
          -------
shares pursuant to Section 3.2 hereof shall be at par value, and shall be
payable by each Stockholder by wire transfer

                                      -4-
<PAGE>
 
of available funds immediately to a bank account of the Company within three (3)
days of the Effective Date. Notwithstanding the foregoing, any payment to be
made by OSI under this Section 3.3 shall be subject to and conditioned upon any
and all governmental approvals, permits, or consents required under any law,
rule, regulation or administrative practice applicable to a funds transfer from
a bank located in the United States to a bank located in India.
 
     3.4  Additional Capital:  Stockholders' Loans:
          ------------------   ------------------- 

          (a) The Stockholders shall contribute additional equity capital to the
Company in proportion to their respective, then existing Ownership Percentages
for purposes of the business and operating needs of the Company.  In addition,
the stockholders hereby agree to loan the following respective amounts to the
company, on such terms and conditions as are mutually agreed to by the
Stockholders, within ninety (90) days of the Effective Date:

        Stockholder                 Amount
        -----------                 ------

          OSI                 Rs.  16,32,000
          ECIL                Rs.  15,68,000

          (b) The issuance price and number of shares of capital stock to be
issued by the Company to the Stockholders in exchange for additional equity
capital contributions and the time and manner of payment therefor shall be set
forth in a written notice of capital call which shall be given by the Board of
Directors of the Company to the Stockholders no less than twenty (20) days prior
to the date specified in such notice for the contribution of additional capital.
Except as may be otherwise mutually agreed upon in writing by the Stockholders,
no Stockholder shall have any obligation to contribute additional capital to the
Company other than as provided in this Section 3.4.

     3.5  Defaults: Failure by a Stockholder (the "Defaulting Stockholder") to
          --------                                                            
contribute its pro-rata share of additional equity capital pursuant to Section
3.4 in the time and manner specified in the notice provided therefor shall
constitute a material breach of this Agreement for purposes of Section 11.3(10)
hereof.  Notwithstanding the foregoing, the other Stockholder shall have the
option in its absolute discretion to waive the default by a Defaulting
Stockholder for purposes of Section 11.3(10) by a written waiver signed by the
other Stockholder, provided, however, that no such waiver shall be deemed a
continuing waiver or a waiver of any subsequent default under this Section 3.5
or of any other right or obligation under this Agreement.  In the event of a
waiver hereunder by the other Stockholder, the Ownership Percentage of each of
the Stockholders shall be redetermined as of the date the additional equity

                                      -5-
<PAGE>
 
capital contribution is made by the other Stockholder and shares of the
Company's capital stock are exchanged therefor to equal each Stockholder's
respective percentage ownership of the then total outstanding shares of the
capital stock of the Company.

     3.6  Preemptive Rights: Except as may be mutually agreed otherwise in
          -----------------                                               
writing by the Stockholders, each Stockholder shall have a pre-emptive right
vis-a-vis third parties to subscribe for and to purchase a portion of any new
issuance of shares of capital stock by the Company in such amount as would be
necessary for such Stockholder to maintain its respective, then existing
Ownership Percentage.

     3.7  Financing: The Stockholders shall cause the Company to the maximum
          ---------                                                         
extent practicable to borrow funds upon commercially reasonable terms and
conditions from such commercial banks or other financial institutions as may be
consistent with reasonable and prudent business practices for purposes of
financing the Company's business and operating needs.  Except as may be
expressly agreed to in writing by both of the Stockholders, neither Stockholder
shall have any obligation or commitment, except as otherwise expressly provided
in Section 3.4(a) hereof, to loan funds to or to guarantee the borrowings of the
Company, or to extend such Stockholder's own credit on behalf of the Company.

     3.8  Company Banks. The Stockholders shall cause the Company to establish
          -------------                                                       
[lines of credit, deposit accounts and CC A/c] with no less than two commercial
banks of established reputation organized under the laws of India.  The
foregoing commercial banks of the Company shall be jointly selected in good
faith consultation between the Stockholders.

                                   ARTICLE 4
            JOINT REPRESENTATIONS AND COVENANTS OF THE STOCKHOLDERS

     4.1  Representations and Warranties:  Each Stockholder represents and
          ------------------------------                                  
warrants to the other Stockholder that: (i) it is a corporation duly organized,
validly existing and in good corporate standing under the laws of its
jurisdiction of incorporation, (ii) it has full corporate power and authority to
enter into and to perform this Agreement, and (iii) its execution and
performance of this Agreement will not violate any provision of applicable law
or regulation or its organizational instruments, and will not result in any
material breach of any material contract or agreement by which it is bound.

     4.2  Good Faith: Each Stockholder hereby agrees to exercise good faith at
          ----------                                                          
all times when dealing with the other Stockholder and with the Company, and to
affirmatively promote and further the business and best interests of the
Company.

                                      -6-
<PAGE>
 
                                   ARTICLE 5
                              UNDERTAKINGS OF OSI

     5.1  Furnishing of Technology:
          ------------------------ 

          (a) OSI shall cause RSPI to grant a license to ECIL and the Company,
for the term of this Agreement or such shorter period as the Company and ECIL
duly perform and observe their obligations hereunder, of that portion of RSPI's
Proprietary Technology necessary to enable ECIL and the Company to manufacture,
assemble and test or to arrange for the manufacture, assembly and testing of the
Products in the Territory (the "Operations").  OSI confirms that the Proprietary
Technology of RSPI covered by the License shall be sufficient to permit the
manufacture and assembly of the Products in complete form by the Company (or its
sub-contractors) as contemplated hereunder.  Notwithstanding Section 11.4 (b)
hereof, and subject to terms and conditions that are agreed upon by the
Stockholders prior to the termination of the Agreement, contemporaneously with
the expiry of the natural term of this Agreement pursuant to Section 11.2
hereof, OSI shall cause RSPI to grant to the Company (i) a license to RSPI's
Proprietary Technology required by the Company in its Operations, and (ii) any
additional licenses granted pursuant to Section 5.1 (b) hereof (collectively the
"Licenses").

     (b) OSI shall cause RSPI to grant a license to ECIL and the Company, for
the term of this Agreement or such shorter period as the Company and ECIL duly
perform and observe their obligations hereunder, of any improvements developed
by RSPI pertaining to the manufacture of the Products or their sale and
distribution, and such improvements to the Products, as would be conducive to
the furtherance of the business purposes described in Section 2.4 hereof.
Nothing contained in this Section 5.1(b), however, shall be construed as
requiring OSI to cause RSPI to furnish or disclose to the Company or to ECIL any
information or data which RSPI or OSI is prohibited from transferring or
disclosing by virtue of any restriction or obligation under any other agreements
to which RSPI or OSI is a party or which RSPI is prohibited from transferring or
disclosing under any applicable laws, rules or regulations.

     (c) The board of directors of RSPI hereby agree to pass a resolution
setting forth the terms necessary for the licensing of technology to the Company
and by ECIL as more fully set forth in Section 5.1 (a) and 5.1 (b) hereof, and
in the event RSPI is disassociated from OSI this Agreement shall remain in full
force and shall be deemed to have the same effect as though executed by RSPI.

                                      -7-
<PAGE>
 
     (d) RSPI hereby agrees to indemnify the Company and ECIL against any
disputes or suits filed for the infringement of RSPI patents or other RSPI
patent rights relating to the Proprietary Technology used in the Product.

     (e) ECIL hereby agrees to indemnify the Company and OSI for the
infringement of any patent or patent rights in respect of the Trent I technology
being provided by ECIL to the Company pursuant hereto.

     5.2  Inspection of Machinery and Supplies:  OSI shall inspect the machinery
          ------------------------------------                                  
and other items to be purchased from RSPI and its Affiliates by or on behalf of
the Company before they are dispatched to the Company.

     5.3  Training of Company's Personnel:  OSI shall train in India, with
          -------------------------------                                 
ECIL's assistance, such number of personnel as are reasonably required by the
Company so as to fulfill the business purposes of the Company more fully set
forth in Section 2.4 hereof.

                                   ARTICLE 6
                          UNDERTAKINGS OF THE COMPANY

     6.1  Purchase Obligations:  The Company hereby agrees to purchase all the
          --------------------                                                
components initially required to manufacture the Products (the "Components")
from OSI, or from other suppliers suggested by OSI, at a mutually agreeable
price.  However, if Components of similar quality and at similar or cheaper cost
are manufactured and are available in a timely manner in India or abroad, the
Company may at its discretion purchase such cheaper Components.  All the
Products manufactured by ECIL on behalf of the Company will be purchased by the
Company on such terms, including price, as shall be negotiated by ECIL and the
Company in good faith.  However, if the Products manufactured by ECIL on behalf
of the Company are available from any source whatsoever, at a cheaper price,
after factoring into such price all applicable duties (payable abroad or in
India), and are of the same quality as the Products manufactured by ECIL, the
Company may at its discretion purchase such cheaper Products.  The initial
prices of the Components and the Products are set forth on Schedules "B" and "C"
attached hereto and such Schedules are subject to revision from time to time
depending on changes in the cost of inputs.

     6.2  Supply of Components and Technology:  The Company hereby agrees to
          -----------------------------------                               
provide ECIL with the Components necessary for ECIL to manufacture the Products
on behalf of the Company.

                                      -8-
<PAGE>
 
                                   ARTICLE 7
                             UNDERTAKINGS OF ECIL

     7.1  Manufacture of Products: ECIL hereby agrees to manufacture the
          -----------------------                                       
Products for and on behalf of the Company.  ECIL shall have the right to sub-
contract various sub-assemblies of the Products (including the conveyor frame,
PCB Blanks and other mechanical fabricated parts).  However, all such
subcontracts entered into by ECIL shall be at the risk of ECIL, and ECIL shall
make good any loss caused to the Company due to defective parts, workmanship,
delay in delivery or otherwise in connection with any such subcontract.  ECIL
agrees that without the prior written consent of OSI and the Company it will not
sell the Products to any person or entity other than the Company.

     7.2  Governmental Approvals:  ECIL shall be responsible for obtaining, and
          ----------------------                                               
shall use its best efforts to obtain, all the necessary governmental approvals
for the formation of the Company, or for any of the other matters covered by
this Agreement, including all necessary approvals of the Government of India and
all other relevant Indian State Governments, but excluding all necessary
approvals of any United States governmental entities.

     7.3  Installation and Servicing of Products:  ECIL shall use its marketing
          --------------------------------------                               
and servicing network to the extent necessary or desirable for the installation
and servicing of the Products, if so requested by the Company, at a price and on
such other terms to be mutually agreed upon by ECIL and the Company.

                                   ARTICLE 8
                                   DIVIDENDS

     8.1  Dividend.  The Company's Board of Directors shall determine the amount
          --------                                                              
and the timing of the declaration and the payment of any dividend by the Company
to the Stockholders.  The dividend payable to OSI shall be paid by the Company
in U.S. dollars net of taxes, and all such taxes shall be paid by the Company.

                                   ARTICLE 9
                           MANAGEMENT AND OPERATIONS

     9.1  Directors:  The Board of Directors of the Company (the "Board") shall
          ---------                                                            
consist of six (6) or eight (8) members represented equally by OSI and ECIL.
The Chairman of the Board of Directors shall be the Chairman of the Board of
Directors of ECIL, who shall be included in the total number of directors
nominated by ECIL pursuant hereto.  The Stockholders shall vote their respective
shares for the election of the directors so nominated and, in the event of a
vacancy for any reason on the Board, shall vote their respective shares for the
election of a

                                      -9-
<PAGE>
 
replacement director nominated by the Stockholder which had nominated the
director whose death, resignation or removal had resulted in such vacancy.  The
term of a director of the Company shall be for one year or until the general
meeting of the Company's stockholders following his or her appointment,
whichever is later.

     Veto Powers of the Chairman of Board:  The Chairman shall have no veto
     ------------------------------------                                  
powers on any of the issues that come before the Board.

     9.2  Initial Directors:  The Stockholders shall appoint, within five (5)
          -----------------                                                  
business days of the Effective Date, the following persons to be the initial
directors of the Company:

          CHAIRMAN            Dr. C. RAO KASARABADA.
          MANAGING DIRECTOR   L. SATYANARAYANA
          DIRECTOR            K.S. MURTHY
          DIRECTOR            DEEPAK CHOPRA
                              ALTERNATE: Y.K. MEHTA/TOM SCHORLING
          DIRECTOR            AJAY MEHRA
                              ALTERNATE: ANTHONY CRANE/R.L.             
                              CHOPRA
          DIRECTOR            BRIGADIER R.K. MEHTA

     9.3  Auditors:  The Company shall have one (1) independent auditor to be
          --------                                                           
jointly selected by the Stockholders, provided, however, that the Company's
initial independent auditor shall be M/S.  Bhaskar Rao & Co., Chartered
Accountants.

     9.4  Initial Officers:  The Stockholders shall cause the Board nominated
          ----------------                                                   
pursuant hereto to appoint, within [ten (10)] business days of the Effective
Date, the following persons to the respective offices set forth opposite their
names as the initial officers of the Company:

          PRESIDENT                 L. SATYANARAYANA
          FINANCIAL CONTROLLER      D.V. SARMA
          COMMERCIAL MANAGER        BRIGADIER R.K. MEHTA
          (DIRECTOR MARKETING)


The term of the foregoing initial officers shall be one year initially and two
years thereafter.

     9.5  Permanent Management:
          -------------------- 

          (a)  Board of Directors:  The business of the Company shall be managed
               ------------------                                               
by or under the direction and supervision of the Board, which may exercise all
such powers of the Company and do all such lawful acts and things as are not by
statute, the Articles, the Memorandum or this Agreement specifically directed

                                      -10-
<PAGE>
 
or required to be exercised or undertaken by the stockholders of the Company.

          (b) Officers.  The officers of the Company shall be appointed by the
              --------                                                        
Board and shall consist of:

          (1)  a President
          (2)  a Financial Controller
          (3)  a Commercial Manager
          (4)  a Marketing Executive
               (i.e., Director Marketing)

     Any number of offices may be held by the same person, unless the Articles
otherwise provide.  The Board shall, on the first anniversary of the date of the
formation of the Company, appoint each of the officers of the Company.  The
officers of the Company so appointed shall serve for terms which shall be set
forth in the respective contracts of appointment.

     9.6  Board Meetings:
          -------------- 

          (a) General:  All matters pertaining to actions and meetings by and of
              -------                                                           
the Board shall be governed by the Articles which shall incorporate all of the
relevant terms hereof, provided that, the Articles shall include a provision
                       -------- ----                                        
that all Board of Directors meetings shall be held in New Delhi, Bombay or in
any other place that may be mutually convenient.

          (b) Quorum Requirement:  1/3rd of the total strength of Directors (any
              ------------------                                                
fraction contained in that 1/3rd being rounded off as one) or two Directors
(whichever is higher) shall constitute the quorum for a Board of Directors
meeting, provided that, at least one Director nominated by ECIL and one Director
         -------- ----                                                          
(or an alternate Director) nominated by OSI present at the meeting shall be
required to constitute such quorum.

          (c) Notice Requirement:  Written notice of an extraordinary general
              ------------------                                             
meeting of the Company's Board of Directors stating the place, date and hour of
the meeting shall be given to each Director not less than twenty one (21) nor
more than sixty (60) days before the date of such meeting.  Any documents to be
reviewed or discussed at such meeting shall accompany such notice.

          (d) Written Consent in Lieu of Meeting.  Except as otherwise expressly
              ----------------------------------                                
provided in the Act, a resolution in writing, executed by all of the members of
the Board of Directors or of a committee thereof entitled to receive notice of a
meeting of the Board of Directors or of such committee, shall be valid and shall
have the same effect as if passed at a meeting, of the Board or of such
committee, duly convened and held.

                                      -11-
<PAGE>
 
     9.7  Stockholder Meetings:
          ---------------------

          (a) General and Extraordinary General Meetings:  The time and place of
              ------------------------------------------                        
all general and extraordinary general meetings of the Company's stockholders
shall be as provided for in the Articles.

          (b) Notice Requirement:  Written notice of an extraordinary general
              ------------------                                             
meeting of the Company's stockholders stating the place, date and hour of the
meeting shall be given to each stockholder entitled to vote at such meeting not
less than twenty one (21), nor more than sixty (60), days before the date of the
meeting.  Any documents to be reviewed or discussed at such meeting shall
accompany such notice.

          (c) Quorum Requirement:  A minimum of two stock/shareholders holding
              ------------------                                              
in aggregate 50% of the Company's issued and paid-up share capital/stock and
entitled to vote thereat, present in person, or represented by proxy, shall
constitute a quorum at all meetings of the share/stockholders of the Company for
the transaction of business, except as otherwise provided by a statute or the
Articles.  If, however, such quorum shall not be present or represented at any
meeting of the stockholders, the stockholders entitled to vote thereat, present
in person or represented by proxy, shall have power to adjourn the meeting from
time to time, without notice other than announcement at the meeting, until a
quorum shall be present or represented.  At such adjourned meeting at which a
quorum shall be present or represented, any business may be transacted which
might have been transacted at the meeting as originally notified.  If the
adjournment is for more than thirty (30) days, a notice of the adjourned meeting
shall be given to each stockholder of record entitled to vote at the meeting.

          (d) Proxy Rights:  A stockholder of the Company shall be entitled to
              ------------                                                    
exercise its right to vote at general and extraordinary general meetings of
stockholders by proxy, and the holder of any such proxy shall not be limited to
a stockholder of the Company.

          (e) Matters Reserved Exclusively for and Requiring Majority of
              ----------------------------------------------------------
Stockholders:  The following actions of the Company shall be decided solely by
- ------------                                                                  
the affirmative vote of the majority of the stockholders of the Company, and
without any approval by the Board:

          (1)  the sale by the Company of its shares of stock in a public
               offering;

          (2)  the declaration by the Company of a dividend on its capital
               stock;

                                      -12-
<PAGE>
 
          (3)  the acquisition by the Company of any interest in the legal or
               beneficial ownership of any other corporation or business
               association;

          (4)  the formation of a subsidiary corporation by the Company;

          (5)  adoption and amendment of the Articles;

          (6)  adoption and amendment of the Memorandum;

          (7)  issuance by the Company of any bonds or debentures;

          (8)  borrowing money in an amount which, together with the aggregate
               balance of all outstanding borrowings, exceeds 300% of the paid-
               in capital of the Company;

          (9)  voluntary winding up of the Company;

          (10) transfer of all or a substantial portion of the Company's
               business or assets; and

provided that, Subsections (1),(5),(6) and (9) herein above require the
- -------- ----                                                          
affirmative vote of a 2/3rd majority of the stockholders of the Company.

     9.8  Financial Statements:  The Company shall maintain true and accurate
          --------------------                                               
books of account and records in accordance with Indian generally accepted
accounting principles consistently applied.  The Company shall provide each of
the Stockholders with (i) interim internal financial reports every one (1)
month, consisting of an income statement, a balance sheet, and a cash flow
statement, and (ii) an audited financial report (within ninety (90) days after
the close of each Fiscal Year.

     9.9  Access to Books/Records:  Access to the books and records of account
          -----------------------                                             
of the Company shall be made available to the Stockholders or their authorized
representatives at all reasonable times during normal business hours.  Whenever
reasonably so requested by a Stockholder, the Company shall make information
regarding its business operations and financial condition available to such
Stockholder.

                                      -13-
<PAGE>
 
                                  ARTICLE 10
                                SHARE TRANSFERS

     10.1 Stock Transfers:
          --------------- 

          (a) Each of the Stockholders agrees not to sell, assign, pledge or in
any manner transfer title or right to, or otherwise encumber, any of the Company
shares held by it, without the prior approval of the Board.  All stock
certificates which the Company issues shall bear a legend as follows: "Any
transfer of the shares of stock of the Company shall be subject to approval of
the Board of Directors of the Company."

          (b) If a Stockholder which desires to transfer its shares to a
specified third party, other than an Affiliate of said Stockholder, has received
the prior approval of the Board, said Stockholder (the "Transferor") may sell
any or all of the Company shares owned by it to said third party which has made
a bona fide offer to purchase any or all of the Company shares owned by it,
provided that in such case the Transferor shall give prior written notice to the
Company and first offer and give the other Stockholder an opportunity to
purchase the shares on the same terms and conditions as offered by the specified
third party. if all the shares offered as aforesaid are purchased by the other
Stockholder, the necessary transfer shall be effected forthwith.

          (c) When such offered shares are not all purchased and paid for in
full by the other Stockholder within sixty (60) days of the initial offer by the
Transferor to the other Stockholder, the Transferor shall have the right to
either itself retain the remaining unsold shares or sell the remaining unsold
shares to the aforesaid third party on the identical terms and conditions
described in the prior written notice to the Company.

          (d) Any notice made pursuant to subsection (b) of this Section 10
shall be made in writing and shall identify the proposed transferee to whom the
Transferor desires to sell shares, and shall contain the specific terms and
conditions of the offer.

          (e) The options open to the Transferor pursuant to subsection (c)
above shall be exercised within sixty (60) days of it having been ascertained
that the shares are not to be purchased and paid for in full by the other
Stockholder within said period of sixty (60) days, failing which the Transferor
shall be deemed to have elected to retain all the shares originally offered.

          (f) In any transfer of Company shares from a Stockholder, the
transferee shall submit to the Company and the non-transferring Stockholder an
agreement by such transferee to

                                      -14-
<PAGE>
 
take the place of the Transferor with respect to, and to be bound as a party to,
this Agreement and to assume such of the rights and obligations of the
Transferor hereunder as they relate to such transferee as the holder of the
shares being transferred.

                                  ARTICLE 11
               EFFECTIVE DATE, TERM, TERMINATION AND EXPIRATION

     11.1 Effective Date: This Agreement shall come into effect upon this
          --------------                                                 
Agreement getting the required approval from all the requisite Government
agencies (the "Effective Date").

     11.2 Term:  This Agreement shall be valid and in force commencing on the
          ----                                                               
Effective Date, and will continue until expiration on eight (8) calendar years
from the Effective Date, unless earlier terminated as provided in this
Agreement, or extended by written agreement of the parties hereto.
Notwithstanding the aforesaid, in the event the Licenses to the Company are
further granted pursuant to the provisions of Section 5.1(a) hereof, the
material provisions of this Agreement enabling the Company to effectively make
use of the Licenses shall remain in full force and effect.

     11.3 Termination of the Agreement:
          ---------------------------- 

     This Agreement shall terminate upon the occurrence of any of the following
events:

          (1)  mutual written agreement of the Stockholders;

          (2)  the sale or other disposition of all of the Company's assets and
               the receipt by the Stockholders in cash of the proceeds thereof;

          (3)  the dissolution of the Company;

          (4)  a trustee, receiver or liquidator is appointed for all or a
               substantial part of the assets or property of either Stockholder;

          (5)  a voluntary petition in bankruptcy or a voluntary winding-up
               petition is filed with respect to either Stockholder, or an
               involuntary petition is filed and is not dismissed within ninety
               (90) days after filing;

          (6)  the interests of either Stockholder are assigned for the benefit
               of creditors;

          (7)  either Stockholder ceases the active conduct of its business;

                                      -15-
<PAGE>
 
          (8)  either Stockholder dissolves or liquidates; or

          (9)  either Stockholder is in material breach or default under this
               Agreement.

In the event of termination pursuant to the provisions of clauses (4), (5), (6),
(7), (8), (9), (10) (a "Stockholder Termination"), the other Stockholder may,
for thirty (30) days after the occurrence of the event referenced therein,
purchase the shares of Company stock of the affected Stockholder at a price
which shall be the higher of the book value or the fair market value of the
shares as shall be determined by an independent valuer which shall be retained
by mutual agreement of the Stockholders. In the event that ECIL purchases the
Company's Stock pursuant hereto, any and all sums of money due to OSI thereby
shall be paid to OSI in US dollars, net of Indian taxes. Any purchase of shares
of Company stock by OSI shall be subject to and conditioned upon compliance with
the legal requirements referred to in Section 3.3 hereof, and any payment to
ECIL pursuant thereto shall be net of Indian taxes, if any.

     11.4 Effect of Termination and Expiration:
          ------------------------------------ 

          (a) Termination or expiration of this Agreement shall not affect any
obligations of either of the Stockholders hereunder which have accrued but are
not discharged prior to such termination or expiration, nor affect the rights of
either Stockholder to recover damages from the other Stockholder by reason of
any breach of this Agreement which has accrued prior to or would by its nature
accrue after such termination or expiration.

          (b) Upon termination or expiration of this Agreement, and subject to
Section 5.1(a) hereof, all of the Proprietary Technology which OSI caused RSPI
to deliver or transmit to ECIL or the Company, including the Proprietary
Technology more fully set forth on Schedule B hereto (the "Schedule B
Technology"), shall be returned forthwith by ECIL and the Company to RSPI, or
shall be destroyed under supervision of OSI.  Immediately upon such termination
or expiration, ECIL and the Company shall cease making use of such Proprietary
Technology, except as otherwise provided for herein, in each of its (or any of
its subcontractors') manufacturing or assembly operations.

          (c) If the joint venture cannot be formed due to the acts of the
Government of India or subsequent to the Company being formed, RSPI withdraws
from this Agreement due to acts beyond its control, the joint venture goals
shall be pursued by ECIL, and RSPI shall fulfill its obligations for the
duration of the Agreement and shall abide by the non-competition clause set
forth in Section 12.2 hereto.  ECIL shall thereafter pay OSI a license fee on
the sale of every x-ray system sold by ECIL or its

                                      -16-
<PAGE>
 
Affiliates which fee shall be US $5000 per X-ray system if such system sells for
between US $60,000 - $63,000; US $4,500 per system if such system sells for
between US $55,000 - $59,999; US $4,000 per system is such system sells for
between US $50,000 -$54,999.  In the event the x-ray system sells for an amount
in excess of US $ 63,000, the license fee shall be an amount greater than US
$5,000 and shall be negotiated in good faith by ECIL and OSI.  In addition, ECIL
hereby agrees that it shall purchase a minimum of one hundred and fifty (150)
multi-energy units, as more fully described in Schedule B hereto, from RSPI,
over a period of five years from the date of termination or withdrawal hereof,
for a sum of US $21,000 per unit.

                                  ARTICLE 12
                                 MISCELLANEOUS

     12.1 Government Approvals:  ECIL hereby agrees, from time to time as
          --------------------                                           
required by applicable Indian law, rule, regulation or administrative practice,
to make any and all required notifications or filings with the Indian government
and to expeditiously obtain all required Indian government and Reserve Bank of
India approvals, permits or consents required for this agreement to be effective
and so that the Company and the joint venture contemplated hereby shall be in
full compliance with the laws of India.

     12.2 No Competition:  Except to the extent otherwise provided herein, the
          --------------                                                      
Stockholders shall not, other than through the Company, have any interest in the
manufacturing, assembling, testing, marketing, selling or servicing of the
Products, or in the operating of any business identical or substantially similar
to the business of the Company (the "Business"), within the Territory as long as
each shall remain a Stockholder of the Company, and for a period of five (5)
years thereafter.  In the event of a Stockholder Termination, the affected
Stockholder shall not purchase, sell or operate any business similar to the
Business in the Territory, for its own account or otherwise, or hold shares of
stock in any other company engaged in the business of operating a Business in
the Territory, whether or not such other company is an Affiliate of the said
Stockholder, for a period of seven (7) years from the date thereof.  The
applicability of this Section 12.2 to each Stockholder shall survive the
termination or expiration of this Agreement.

     12.3 Non-Disclosure:  ECIL and the Company each acknowledges that the
          --------------                                                  
Proprietary Technology of RSPI disclosed to it (as such, a "Recipient") pursuant
to the terms hereof (the "Disclosed Proprietary Technology") is considered to be
a valuable proprietary asset of RSPI and hereby agrees that disclosure to a
Recipient by RSPI of any of the Disclosed Proprietary Technology, whether
written, oral, or in machine-readable form, is made in strictest confidence.  In
addition:

                                      -17-
<PAGE>
 
          (a) Each Recipient will ensure that the confidentiality and secrecy of
the Disclosed Proprietary Technology is maintained.  Each Recipient agrees to
take all steps necessary to avoid any unauthorized disclosure, use, or
publication of the Disclosed Proprietary Technology.

          (b) Each Recipient may disclose the Disclosed Proprietary Technology
to its own employees to whom it shall be reasonably necessary in order to
further Recipient's business relationship with OSI as contemplated hereunder.
Each Recipient agrees that it shall take appropriate action (by instructions,
agreement, or otherwise) with such employees in order to satisfy Recipient's
obligations under this Agreement with respect to use, copying, protection, and
security of the Disclosed Proprietary Technology.

          (c) Each Recipient agrees not to print or copy, in whole or in part,
any documents or magnetic media containing any of the Disclosed Proprietary
Technology without the prior written consent of OSI.

          (d) Each Recipient agrees not to disclose any of the Disclosed
Proprietary Technology to any entity outside of said Recipient without the prior
written consent of OSI, and without first obtaining from each such entity an
agreement substantially identical to the provisions of this Section 12.3 in
form.

          (e) Each Recipient agrees to use the Disclosed Proprietary Technology
only in furtherance of its business relationship with OSI as contemplated
hereunder.

          (f) The Disclosed Proprietary Technology will not be used by ECIL or
the Company to provoke an interference with any patent application which RSPI
has filed with respect to the Disclosed Proprietary Technology, and will not be
used to amend any claim in any pending patent application to expand the claim to
read on, cover, or dominate any invention (whether or not patentable) disclosed
in the Disclosed Proprietary Technology.

     (g) Each Recipient agrees not to otherwise use or dispose of the Disclosed
Proprietary Technology except with the prior written consent of OSI.  OSI's
consent may be withheld for any reason or no reason, and may be granted upon
such terms as OSI may establish from time to time.

     (h) The Disclosed Proprietary Technology shall remain the property of RSPI.

     The provisions of this Section 12.3 are binding upon each Recipient and its
directors, employees, agents and subcontractors as long as any part of the
Disclosed Proprietary Technology disclosed or delivered to Recipient remains
confidential, except

                                      -18-
<PAGE>
 
that said Recipient has no such obligation with respect to any Disclosed
Proprietary Technology which (a) is already known to Recipient; (b) is or
becomes publicly known through no wrongful act of Recipient; (c) is disclosed to
Recipient by a third person not in violation of any obligation of non-disclosure
owed to OSI or RSPI; or (d) is approved for release by written authorization of
OSI.  Each Recipient has the burden of proving the applicability of any of the
above exceptions.  OSI has the right to inspect Recipient's records to determine
the source of any Disclosed Proprietary Technology claimed to be within any of
the above exceptions.

     12.4 Improvements and Developments:  As part consideration for OSI's
          -----------------------------                                  
causing RSPI to grant to ECIL and the Company the Licenses, any improvement to
the Products or the Proprietary Technology made by ECIL or by the Company shall
be the sole property of OSI.  If any patents result from any such improvements,
such patents shall be solely owned by OSI, and the Company shall be granted a
no-cost transferable shop rights license for such patents for the life of the
patents.  ECIL and the Company agree to promptly disclose any and all such
improvements (including inventions) to OSI, and to cooperate in securing and
perfecting any protectable intellectual property rights to such improvements.
Any inventions, developments, or patents relating to the Products and resulting
from sole development by OSI, or by OSI in conjunction with other parties, shall
be the sole property of OSI, and the Company shall be granted an option to
include in the Licenses any such inventions, developments or patents.

     12.5 Arbitration:  Any and all disputes between the Stockholders arising
          -----------                                                        
from or in connection with this Agreement shall be amicably and promptly
negotiated upon consultation in good faith between the Stockholders.  Each of
the Stockholders agrees that, if an amicable settlement is not reached within
thirty (30) days after commencing consultation, the dispute shall be settled
exclusively by arbitration in accordance with the Rules of Conciliation and
Arbitration of the International Chamber of Commerce conducted in the place
where the principal office of the Stockholder not initiating the arbitration is
located, and the arbitration award shall be final and binding upon the
Stockholders for all purposes hereof and (nay thereafter be enforced by any
court having jurisdiction.  The arbitration shall be conducted in the English
language.  Any arbitration award shall include attorneys' fees for the
prevailing party.

     12.6 Governing Law:  The construction, validity and performance of this
          -------------                                                     
Agreement shall be governed by the laws of India, provided, however, that the
construction, validity and performance of Sections 3.3 and 12.5 hereof shall be
governed by the laws of the State of California, U.S.A.

                                      -19-
<PAGE>
 
     12.7 Counterparts: This Agreement may be executed in one or more
          ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

     12.8 Assignment:  Neither this Agreement nor any right or obligation
          ----------                                                     
provided for herein is assignable in whole or in part by any party hereto
without the prior written consent of the other parties hereto.

     12.9 Integration:  This Agreement constitutes the entire understanding
          -----------                                                      
among the parties, and supersedes any previous understandings, written or oral,
which the parties may have reached, with respect to the subject matter hereof.

     12.10 Modification: No modification or amendment hereof shall be valid or
           ------------                                                       
binding upon the parties unless agreed to in writing by each of the parties
hereto.

     12.11 Force Majeure:  No failure or omission by any party to carry out or
           -------------                                                      
observe any of the terms or conditions of this Agreement shall, except as herein
expressly provided to the contrary, give rise to any claim against the party in
question or be deemed a breach of this Agreement by such party if such failure
or omission arises from any extraneous cause entirely beyond the control of that
party.

     12.12 Notices:  All notices, requests, demands and other communications
           -------                                                          
hereunder shall be in writing and shall be deemed to have been duly given if
delivered or mailed by registered or certified mail to the addresses hereinafter
set forth or at such other addresses as may be designated in writing by notice
given hereunder to the other parties.  The date of the giving of such notices,
requests, demands, and other communications shall be deemed to be the date of
the posting of the mail, if so mailed, or the date of delivery, if delivered
other than by registered or certified mail.


     TO OSI  -      M/S Opto-Sensors Inc.
                    12525 Chadron Avenue
                    Hawthorne, California 90250, USA.

     TO ECIL  -     M/S Electronics Corporation of India Limited,
                    ECIL P.O., Hyderabad-500 762 A.P., India.

     TO THE COMPANY -  M/S Ecil-Rapiscan Security Products
                    [address to be determined]

     12.13 Non-Waiver of Right:  The failure of any party to enforce at any time
           -------------------                                                  
any of the provisions hereof shall not be construed to be a waiver of any such
provisions or a waiver of

                                      -20-
<PAGE>
 
the right of such party thereafter to enforce any such provisions.  No waiver by
a party of any right hereunder shall be deemed a waiver of any other right.

     12.14 Severability:  The provisions of this Agreement shall be deemed
           ------------                                                   
severable, and in the event that any term or provision of this Agreement shall
be held invalid, illegal or unenforceable, the remainder of the terms and
provisions of this Agreement shall not be affected by such invalidity,
illegality or unenforceability, and this Agreement shall be interpreted and
construed as if such term or provision had never been contained to the extent
that the same shall have been held to be invalid, illegal or unenforceable.]

     12.15 Headings:  The headings of Sections used in this Agreement are
           --------                                                      
inserted for convenience of reference only and shall not affect the
interpretation of the respective Sections of this Agreement.

                                      -21-
<PAGE>
 
     IN WITNESS WHEREOF, each of the parties hereto has caused this Agreement to
be executed on its behalf on the day and year set forth across its signature
below.

                                    OPTO-SENSORS, INC.
WITNESS:



                                    By:  /s/Deepak Chopra
                                         ------------------
                                            
1.                                  Its:    CEO Chairman
                                         ------------------
                                            
2.                                  Name:   Deepak Chopra
                                         ------------------

                                    ELECTRONICS CORPORATION OF
                                    INDIA LIMITED



                                    By:  /s/
                                         ------------------
1.                                  Its: __________________
2.                                  Name:__________________

                                      -22-
<PAGE>
 
                                  SCHEDULE A

X-Ray System
- ------------

Rapiscan current Multi-Energy Security X-Ray Inspection System including:

          1.   All mechanical drawings of the Rap 2, Rap 17, Rap 14

          2.   X-Ray generator manufacturing drawings including mechanical,
               electrical, and schematics, test procedures.

(The Trent I Image Processor PCB and the A to D Converter PCB manufacturing
drawings will be licensed after 12 months of the Effective Date.  Maintenance
documentation will be provided immediately).

                                      -23-
<PAGE>
 
                                  SCHEDULE B

<TABLE>                                           
<CAPTION>                                         

                RAPISCAN2 MULTI-ENERGY MACHINE (90 MC X 80 CM)
                ----------------------------------------------
                                                                   
                 <S>      <C>       <C>
                 36       EACH      LARGE         DETECTORS        
                 36       EACH      SMALL         DETECTORS        
                 9        EACH      PCB DIODE ARRAY                
                 9        EACH      PCB DIODE ARRAY                
                 1        EACH      PROCESSOR PCB TRENT I          
                 1        EACH      X-RAY CONTROL PCB              
                 1        EACH      CONTROL PANEL                  
                 2        EACH      PHOTOCELLS                     
                 1        EACH      ENCODER                        
                 1        EACH      X-RAY TUBE                     
                 1        LOT       INDICATOR LIGHTS, SWITCHES,    
                                    COMPONENTS, CABLES,            
                                    MISCELLANEOUS PARTS            
                                                                   
                 TOTAL KIT PRICE  (F O B)  U.S. $ 16,000            
</TABLE>                                         

                                      -24-
<PAGE>
 
                                  SCHEDULE C

         MULTI ENERGY XBIS 9080 - ECIL'S SCOPE OF SUPPLY

     1.  Conveyor Frame and L.S Box

     2.  X-Ray Generator Housing and Collimator

     3.  Conveyor Belt

     4.  Conveyor Rollers

     5.  Control Desk

     6.  Lead Flaps

     7.  14" Color Monitors

     8.  Drum Monitor

     9.  X-Ray Control PSU (Power Supply)

     10.  DC-DC Voltage Control PCB

     11.  IR Interface PCB

     12.  IR Supply PCB

     13.  Torroidal Transformer (Mains)

     14.  Miscellaneous hardware, final assembly, testing and packaging for
          delivery.

Transfer Price U.S. $13000 (inclusive of customs duty, but exclusive of local
- --------------------------                                                   
duties and taxes).

                                      -25-
<PAGE>
 
                                   SCHEDULE A


<TABLE>
<CAPTION>

       RAPISCAN2 MULTI-ENERGY MACHINE [OR SIMILAR MODEL] (90 MC X 80 CM)
       -----------------------------------------------------------------
 
               <S>  <C>       <C>
               36   EACH      LARGE         DETECTORS
               36   EACH      SMALL         DETECTORS
                9   EACH      PCB DIODE ARRAY
                9   EACH      PCB DIODE ARRAY
                1   EACH      PROCESSOR PCB TRENT I
                1   EACH      X-RAY CONTROL PCB
                1   EACH      CONTROL PANEL
                2   EACH      PHOTOCELLS
                1   EACH      ENCODER
                1   EACH      X-RAY TUBE
                1   LOT       INDICATOR LIGHTS, SWITCHES,
                              COMPONENTS, CABLES,
                              MISCELLANEOUS PARTS
</TABLE>

                                      -26-
<PAGE>
 
                                   AGREEMENT
                                   ---------

        THIS AGREEMENT is made and entered into this 3rd day of JANUARY, 1995,
by and among OPTO SENSORS, INC. ("OSI"), a California corporation, DEEPAK
CHOPRA ("Chopra") and AJAY MEHRA ("Mehra").

        WHEREAS, OSI and Electronic Corporation of India Limited ("ECIL"), an
Indian corporation, are parties to a joint venture regarding the manufacturing
and selling of diode kits ("Joint Venture");

        WHEREAS, pursuant to the agreement between OSI and ECIL for the Joint 
Venture, OSI and ECIL agreed to contribute total capital up to the amount of 
$150,000.00 to be divided between OSI and ECIL on the basis of 51% and 49%, 
respectively;

        WHEREAS, the profits, losses distributions of the Joint Venture are to 
be allocated 51% to OSI and 49% to ECIL;

        WHEREAS, Chopra and Mehra have expressed an interest in participating as
joint venturers in the Joint Venture; and

        WHEREAS, it is deemed by OSI to be in the best interests of said 
corporation to assign to Chopra and Mehra a portion of OSI's interest in the 
Joint Venture.















  
<PAGE>
 
     NOW, THEREFORE, in consideration of the usual promises contained herein, 
the parties hereto agree as follows:

          1.   OSI hereby sells, assigns, transfers and conveys to Chopra and
Mehra a 15% interest (10 1/2% to Chopra and 4 1/2% to Mehra) in the Joint
Venture, the result of which will be that (i) OSI shall own 36% of the Joint
Venture and shall be allocated 36% of the profits, losses and distributions,
(ii) Chopra shall own 10 1/2% of the Joint Venture and shall be allocated 10
1/2% of the profits, losses and distributions and (iii) Mehra shall own 4 1/2%
of the Joint Venture and shall be allocated 4 1/2% of the profits, losses and
distributions.

          2.   Chopra and Mehra hereby accept the aforesaid assignment and, 
subject to the terms and conditions of this Agreement, agree to be bound by the 
terms and conditions relating to the Joint Venture.  Any and all contributions 
of capital, as well as any other payments required to be made by OSI regarding 
its present 51% ownership interest in the Joint Venture, shall be allocated 
among OSI, Chopra and Mehra on a pari passu basis in the same proportion as 
their ownership percentages (36%, 10 1/2% and 4 1/2%, respectively) in the Joint
Venture.

          3.   In the event that Chopra and/or Mehra are required or requested 
to give their consent to any action regarding the Joint Venture or to vote their
Joint Venture interests, they will do so in accordance with the instructions 
given to them by OSI.  In

                                       2
<PAGE>
 
other words, any and all voting and decision making rights of Chopra and/or 
Mehra regarding the Joint Venture shall be exercised in accordance with OSI's 
instructions and wishes.

          4.   This Agreement may not be amended or modified without the 
approval of the Board of Directors of OSI.

          IN WITNESS WHEREOF, the parties hereto have executed this Agreement 
the day and year first above written.

                                      OPTO SENSORS, INC.

                                      By: /s/ Deepak Chopra
                                         --------------------------------

                                        /s/ Deepak Chopra
                                      -----------------------------------
                                      DEEPAK CHOPRA

                                        /s/ Ajay Mehra
                                      -----------------------------------
                                      AJAY MEHRA
                                     3   
<PAGE>
 
                            AMENDMENT TO AGREEMENT
                            ----------------------

          THIS AMENDMENT TO AGREEMENT is made and entered into this 20th day of 
May, 1997, by and among OPTO SENSORS, INC. ("OSI"), a California corporation, 
DEEPAK CHOPRA ("Chopra") and AJAY MEHRA ("Mehra").

          WHEREAS, on January 3, 1995, the parties hereto entered into a certain
Agreement which provided for the sale by OSI to Chopra and Mehra of a 15% 
interest in a certain joint venture between OSI and Electronics Corporation of 
India, Limited ("Assignment Agreement"); and

          WHEREAS, the parties hereto now wish to amend the Assignment 
Agreement.

          NOW, THEREFORE, in consideration of the mutual promises contained 
herein, and for other good and valuable consideration receipt of which is 
hereby acknowledged, the parties hereto agree as follows:

          1.   Paragraph 3 of the Assignment Agreement is hereby deleted in its 
entirety.

          2.   All of the other terms and conditions of the Assignment 
Agreement, except as specifically amended by Paragraph 1 above, shall remain in 
full force and effect.

          IN WITNESS WHEREOF, the parties hereby have executed this Amendment to
Agreement the day and year first above written.

                                    OPTO SENSORS, INC.
                 
                                    By:/s/ Deepak Chopra
                                        __________________________________
                                         Deepak Chopra, President

                                     /s/ Deepak Chopra
                                    --------------------------------------
                                    DEEPAK CHOPRA

   
                                    /s/ Ajay Mehra
                                    --------------------------------------
                                    AJAY MEHRA

<PAGE>                                                              EXHIBIT 23.1
 
             INDEPENDENT AUDITORS' CONSENT AND REPORT ON SCHEDULE
 
To the Board of Directors and Shareholders of
OSI Systems, Inc.
   
  We consent to the use in this Amendment No. 1 to Registration Statement No.
333-29179 of OSI Systems, Inc. of our report dated June 12, 1997, appearing in
the Prospectus, which is a part of this Registration Statement, and to the
references to us under the headings "Selected Consolidated Financial Data" and
"Experts" in such Prospectus.     
 
  Our audits of financial statements referred to in our aforementioned report
also included the financial statement schedule of OSI Systems, Inc., listed in
Item 16. This financial statement schedule is the responsibility of the
Company's management. Our responsibility is to express an opinion based on our
audits. In our opinion, such financial statement schedule, when considered in
relation to the basic consolidated financial statements taken as a whole,
presents fairly in all material respects the information set forth therein.
 
/s/ DELOITTE & TOUCHE LLP
 
Los Angeles, California
   
July 31, 1997     

<PAGE>
 
                                                                    EXHIBIT 99.1


                    CRIMINAL PLEA AND SENTENCING AGREEMENT

                      UNITED STATES v. UDT SENSORS. INC.
                      ----------------------------------

                                       I

                                 INTRODUCTION
                                 ------------

     This constitutes the criminal plea and sentencing agreement ("Agreement") 
between UDT Sensors, Inc. ("UDT") and the United States Attorney's Office for 
the Central District of California ("this Office"). This Agreement is entered 
into pursuant to Rule 11(e)(1)(C) of the Federal Rules of Criminal Procedure.

     This Agreement contemplates the resolution of all criminal charges against 
UDT with regard to allegations of false testing within the scope of the 
Information attached hereto as Exhibit 1 ("the Information").

     This Office is the sole governmental entity entering into this Agreement, 
and this Agreement does not bind any other federal, state or local prosecuting, 
administrative or regulatory authorities.

                                      II

                            OFFENSES AND PENALTIES
                            ----------------------

     The Information charges UDT with three counts of making false statements 
regarding matters within the jurisdiction of the United States Department of 
Defense, in violation of 18 U.S.C. (S) 1001. The maximum sentence that may be 
imposed is a fine of $500,000 per count. 18 U.S.C. (S) 3571(c)(3).

     The court may also order restitution under 18 U.S.C. (S) 3663(a)(1), and 
may impose a term of probation for up to five years under 18 U.S.C. (S)
3561(b)(1). In addition, the court is
<PAGE>
 
required by statute to impose a special assessment of $200 per count. 18 U.S.C.
(S) 3013(a)(2)(B).

                                      III
  
                                     PLEA
                                     ----

     This Office and UDT hereby agree, pursuant to Federal Rule of Criminal
procedure 11(e)(1)(C), that the disposition of this matter shall include the 
following terms and conditions:

     A.  UDT agrees to waive indictment by grand jury and to plead guilty to the
Information that charges UDT with three counts of violating 18 U.S.C. (S) 1001.
     
     B.  To be guilty of violating 18 U.S.C. (S) 1001, UDT must have made a 
material false statement within the jurisdiction of a department or agency of 
the United States, knowing that the statement was untrue. By signing this 
Agreement, UDT admits that it is guilty of the offenses charged in the 
Information and stipulates to the Statement of Facts set forth herein.

     C.  UDT agrees to waive the requirement for a presentence investigation and
report, as set forth in Rule 32 of the Federal Rules of Criminal Procedure, and
asks to be sentenced on the same date as the entry of its guilty plea to the
offenses charged in the Information. If, however, the sentencing takes place
on a day other than the day of the plea, that will not provide a basis for
UDT to withdraw its guilty plea.

     D.  UDT agrees to pay a criminal fine of $250,000 for each count of the
Information, for a total of $750,000. In addition, as to Count Three, UDT agrees
that it shall be placed on

                                      -2-

<PAGE>
 
probation for a period of five years. The sole conditions of probation shall be:
(1) that UDT abide by all federal, state, and local laws during the period of 
probation, and (2) that UDT pay the $750,000 fine pursuant to the five-payment 
installment schedule set forth below:

<TABLE> 
<CAPTION> 
     Installment              Amount                   Due Date for Payment
     -----------              ------                   --------------------
     <S>                      <C>                      <C> 
          1                   $100,000                 March 31, 1995 
          2                   $150,000                 March 31, 1996 
          3                   $150,000                 March 31, 1997 
          4                   $150,000                 March 31, 1998 
          5                   $200,000                 March 31, 1999 
</TABLE> 

     E.   UDT agrees that the five-year term of probation on Count Three shall 
commence to run upon UDT's first installment payment due March 31, 1995.

     F.   The installment schedule set forth in paragraph D for the payment of 
UDT's criminal fine may only be adjusted with the consent of the government and 
must be approved by the court. In the event that UDT is financially unable to 
make a payment, it may request the opportunity to renegotiate the terms of the 
payment schedule. In no event shall any payments due by UDT be extended beyond 
the five-year period of probation. Nor shall the total principal amount of the 
fine be reduced to less than $750,000. UDT may prepay the criminal fine, 
including all interest due up to and including the date of prepayment, without 
penalty.

                                      -3-
<PAGE>
 

     G.   UDT agrees to pay interest in addition to its $750,000 principal fine 
amount. The interest payments shall be due on the date of each principal 
installment, as set forth in paragraph D. The rate of interest shall be equal to
the six-month U.S. Treasury Bill rate computed as of fifteen days prior to the 
due date of each installment. Interest on the $750,000 principal fine amount 
shall commence running as of the date of sentencing.

     H.   UDT also agrees to pay to the Clerk of the Court for the United States
District Court for the Central District of California on the date of sentencing 
the mandatory assessment of $600 ($200 per count of the Information).

     I.   Restitution shall not be ordered as part of the criminal sentence. The
issue of restitution is addressed in the civil Settlement Agreement attached 
hereto as Exhibit 2. This Office and UDT expressly acknowledge that this Plea 
Agreement is conditioned upon the district court's approval of this related 
civil settlement.

     J.   In exchange for UDT's quilty pleas and other commitments pursuant to 
this Agreement, this Office agrees not to prosecute UDT for any other criminal 
violations involving parts UDT manufactured and tested for U.S. military 
application as of the date that this agreement is executed.

     K.   This Agreement does not prevent the government from prosecuting any 
individual for any offense, including the offenses charged in the Information.

                                      -4-
<PAGE>
 
     L.   UDT knowingly and intelligently waives any rights it may have to any 
direct appeal or collateral attack of the sentence agreed to herein.

     M.   Until the entry of UDT's quilty plea pursuant to the terms of this 
Agreement, or the expiration of one year from the date this Agreement is signed,
whichever occurs first, UDT agrees to waive any defense based on the statute of 
limitations with respect to the criminal charges set forth in the Information 
or related to activities described in paragraph J.

                                      IV

                              STATEMENT OF FACTS
                              ------------------

     The parties agree to the statement of facts attached hereto as Exhibit 3.
This statement of facts does not preclude this Office or UDT from stating any 
further facts, not inconsistent with those in the attached statement, deemed 
necessary by either party or the court to establish a factual basis for the 
quilty pleas, or necessary to respond to questions by the court.

                                       V

                          JOINT AND SEVERAL LIABILITY
                          ---------------------------

     As part of this Agreement, the President of UDT, Deepak Chopra, agrees 
personally to guarantee UDT's payment of the criminal fine as described herein. 
Accordingly, UDT and Mr. Chopra are jointly and severally liable for the payment
of fines plus interest pursuant to the schedule set forth in Section III. This
provision is intended solely to insure payment of the fine,

                                      -5-

<PAGE>
 
and does not mean or imply that Mr. Chopra directed, approved of, or had 
knowledge of the unlawful acts alleged in the Information.

                                      VI
            
                            BREACH OF THE AGREEMENT
                            -----------------------

     UDT understands that this Office has entered into this Agreement strictly 
relying on UDT's faithful performance of every material term and condition 
herein. If it is determined that UDT has violated the provisions of this 
Agreement by failing to make a required installment payment, the following 
consequences will result:

     A.   This Office will no longer be bound in any respect by this Agreement, 
and shall be entirely released from its commitments, representations and 
obligations to UDT set forth herein, and UDT may be subject to prosecution for 
any federal criminal violation to which a guilty plea has not been entered into 
pursuant to Section III above. UDT agrees that such prosecution will be at the 
discretion of this Office, and shall not be barred by any applicable statute of 
limitations.

     B.   Alternatively, at the discretion of this Office, if UDT fails to make 
a timely installment payment plus interest pursuant to the schedule set forth in
Section III above, the United States may, by written notice to UDT, declare any 
remaining balance and interest due and payable as of the tenth business day 
following UDT's receipt of such written notice. In the event UDT refuses or is 
unable to pay any balance and interest due, Mr. Chopra agrees to pay the entire 
remaining balance and interest within

                                      -6-
<PAGE>
 
ten business days thereafter.  In such event, however, the court will not 
impose an additional monetary fine on UDT.  The total fine to be imposed on UDT 
with respect to Counts One through Three will be $750,000.

     If the government elects to proced under paragraph "VI.B", it will forego 
its right to proceed under paragraph "VI.A".

                                      VII

                           SUSPENSION AND DEBARMENT
                           ------------------------

     By this Agreement this Office makes no representation or promise concerning
suspension or debarment of UDT from contracting with the United States 
government or with any office, agency, or department thereof.  Suspension and 
debarment are administrative actions solely within the authority of other 
government offices, agencies, and departments.  This Agreement is not 
conditioned upon, and shall not be effected by, any suspension or debarment 
decision concerning UDT that may be made by any office, agency or department of 
the United States following UDT's entry of guilty pleas herein.

     The government agrees to make known to the Department of Defense the extent
of UDT's cooperation and remedial efforts.

                                      VIII

                        WAIVER OF CONSTITUTIONAL RIGHTS
                        -------------------------------

     UDT understands that by pleading guilty to the attached Information, it 
will be giving up the following constitutional rights:

                                      -7-
<PAGE>
 

     UDT waives its right to indictment by a grand jury. UDT also waives the
right to plead not guilty to the charges and the right to be tried by a jury,
or if UDT wished and with the consent of the government, to be tried by a judge.
At that trial, UDT would have the right to an attorney. During the trial, UDT
would be presumed innocent and a jury would be instructed that the burden of
proof is on the government to prove UDT guilty beyond a reasonable doubt. UDT
would have the right to confront and cross-examine witnesses against it. If UDT
wished, it could call witnesses on its behalf and subpoena those witnesses to
testify. If UDT were found guilty after a trial, it would have the right to
appeal that verdict to see if any errors had been committed during trial that
would require either a new trial or a dismissal of the charges. By pleading
guilty, UDT will be giving up all of these rights.

                                      IX

                           NO ADDITIONAL AGREEMENTS
                           ------------------------

     Except as expressly set forth herein and in the attached civil Settlement 
Agreement, there are no additional promises, understandings or agreements, 
express or implied, between this Office and UDT, or their respective counsel, 
concerning this case or any other pending or future federal, state, or local 
criminal prosecution, civil litigation or administrative proceeding relating to 
any other federal, state or local charges that may now be pending or hereafter 
be brought against UDT or any of its parent divisions, subsidiaries, or 
affiliates. Nor may any

                                      -8-
<PAGE>
 
additional agreement, understanding or condition be entered into unless in 
writing and signed by all parties.

                                       X

                               LIENS AND CLAIMS
                               ----------------


     All matters relating to obtaining a lien on UDT's property, and enforcing 
or subordinating such lien or claim, shall be handled by the United States in a 
manner consistent with the Stipulation for Consent Judgment, which is part of 
the attached civil settlement agreement.
Dated:  October 21, 1994


                                             NORA M. MANELLA                   
                                             United States Attorney            
                                                                               
                                             /s/ Bryan D. Daly                 
                                             --------------------------        
                                             BRYAN D. DALY                     
                                                                               
                                                                               
                                             /s/ Robert T. Scott               
                                             --------------------------        
                                             ROBERT T. SCOTT                   
                                             Assistant United States Attorneys 
                                             Public Corruption and Government  
                                                  Fraud Section                
                                                                               
                                             Attorneys for Plaintiff           
                                             UNITED STATES OF AMERICA          

                                      -9-
<PAGE>
 
     On behalf of UDT, I have read this Agreement and have carefully reviewed 
every part of it with counsel for UDT. I understand it, and, on behalf of UDT, I
knowingly agree to it. Further, I have consulted with counsel for UDT and fully 
understand UDT's rights under the law. No promises or inducements have been made
to UDT other than those contained in this Agreement. In addition, no one has 
threatened or forced UDT in any way to enter into this Agreement. Finally, I am 
satisfied with the representation of counsel for UDT in this matter.
Dated:  October 6, 1994


                                             UDT SENSORS, INC.

                                             /s/ Deepak Chopra
                                             ------------------------------
                                             DEEPAK CHOPRA
                                             PRESIDENT

     
     As counsel for UDT, I have carefully reviewed every part of this Agreement 
with my client. To my knowledge, UDT's decision to enter into this Agreement is 
an informed and voluntary one.
Dated:  October 6, 1994

                                             RICHMAN, LAWRENCE, MANN,
                                             GREBNZ, ARBITER & CHIZEVER        
                                             /s/ Roel C. Campos                
                                             --------------------------------  
                                             ROEL C. CAMPOS                    
                                                                               
                                             Counsel for Defendant             
                                             UDT SENSORS, INC.                  

                                     -10-
<PAGE>
 
                              STATEMENT OF FACTS
                              ------------------ 

A.   Introduction
     ------------  

     At all times pertinent to the charges in the Information, UDT Sensors, Inc.
("UDT") was a corporation located at 12525 Chadron Avenue, Hawthorne, 
California. UDT was formed in May 1987 and currently has approximately 300 
employees.

     UDT manufactures photosensors under contracts with both military and 
commercial buyers. Among the photosensors manufactured by UDT are 
high-reliability ("hi-rel") sensors that are sold primarily to military 
customers, including the U.S. Army for application in laser detector sets on 
various aircraft and attack helicopters, and the U.S. Navy for application in 
arc fault detector sets on submarines.

     The military hi-rel purchase orders awarded to UDT specified various
quality assurance tests that were required to be performed to assure the
reliability of the hi-rel photosensors for critical military applications. Those
tests included various electrical and optical tests designed to measure the
operational effectiveness of each sensor. The results of the tests were recorded
on computer data sheets that were furnished to hi-rel customers with each
shipment of sensors, along with certificates of conformance, which certified
that the sensors had been manufactured and quality tested in accordance with
applicable military specifications.

B.   Creation of False Test Data 
     ---------------------------

     Beginning on or about May 1991, UDT testing personnel began using a random
number generator ("RNG") program to create false computer test data for hi-rel
photosensors. Specifically, by using this RNG program, UDT testers would create
false computer test data with specific measurements without testing the sensors
as required by the applicable military specifications. From on or about May 1991
to approximately April 1994, UDT testers, at the direction of UDT's hi-rel test
supervisor and former project engineer, skipped various required electrical
and/or optical tests and used the RNG to create false computer test data on
approximately $6,900,878 in shipments of various types of hi-rel sensors, as
described below:

<TABLE> 
<CAPTION> 
Date                        Part Identification No.                  Sales
- ----                        -----------------------                   -----
<S>                         <C>                                       <C> 
1.   Powertronics
     ------------

7/1/92 to 6/30/93                  1304-1                             $2,144,274
7/1/93 to 3/26/94                  1304-1                             $1,519,995

2.   Hughes Danbury
     --------------
7/1/92 to 6/30/93                  8060                               $28,364   
</TABLE> 














 









 











<PAGE>
 
<TABLE> 
<S>                                       <C>                                   <C>     
7/1/93 to 3/26/94                         8060                                  $313,040                          
                                                                                                                  
7/1/92 to 6/30/93                         6523-2                                $32,472                           
7/1/93 to 3/26/94                         6523-2                                $102,762                          
                                                                                                                  
7/1/92 to 6/30/93                         6523-1                                $680,720                          
7/1/93 to 3/26/94                         6523-1                                $423,720                          
                                                                                                                  
3.   General Dynamics                                                                                             
     ----------------                                                                                             
7/1/91 to 6/30/93                         1304-1                                $546,937                          
7/1/93 to 3/26/94                         1304-1                                $211,464                          
                                                                                                                  
4.   Litton Guidance                                                                                              
     ---------------                                                                                              
7/1/91 to 6/30/92                         4819-3                                $229,725                          
7/1/92 to 6/30/93                         4819-3                                $64,845                           
7/1/93 to 3/26/94                         4819-3                                $137,955                          
                                                                                                                  
7/1/93 to 3/26/94                         8640-3                                $26,724                           
                                                                                                                  
7/1/93 to 3/26/94                         6834-1                                $14,019                            
                                                            
5.   Honeywell Avionic                                      
     -----------------                                      
7/1/91 to 6/30/92                         4959-4                                $43,475                           
7/1/92 to 6/30/93                         4959-4                                $23,429                           
7/1/93 to 3/26/94                         4959-4                                $59,875                           
                                                                                                                  
7/1/91 to 6/30/92                         4959-3                                $23,985                           
7/1/92 to 6/30/93                         4959-3                                $27,730                           
7/1/93 to 3/26/94                         4959-3                                $44,680                           
                                                                                                                  
7/1/92 to 6/30/93                         7032-1                                $18,620                           
7/1/93 to 3/26/94                         7032-1                                $7,000                            
                                                                                                                  
7/1/92 to 6/30/93                         7032-2                                $14,504                           
7/1/93 to 3/26/94                         7032-2                                $14,000                           
                                                                                                                  
6.   Allied-Signal/Bendix                                                                                         
     --------------------                                                                                         
7/1/90 to 4/23/94                         8705-2                                $62,708                           
7/1/93 to 4/23/94                         8705-2                                $63,205                           
                                                                                                                  
7.   Ametek                                                                                                       
     ------                                                                                                       
7/1/93 to 4/23/94                         8505-1                                $20,650                            
</TABLE> 

     By deducting an estimated value of approximately 10% from the purchase
price for the above photosensors for skipped quality testing, the loss to the
government from UDT's failure to contduct

                                      -2-
<PAGE>
 
this testing is estimated at approximately $690,087. This loss figure does not 
include damages relating to untested defective diodes which may have been 
shipped to the hi-rel customers, or consequential damages that may be attributed
to UDT's failure to perform the required testing.

C.   The Hughes Shipments (Count One and Two)
     ----------------------------------------

     On or about March 14, 1990, the U.S. Army awarded contract DAAB07-90-C-S001
to Hughes Danbury Optical Systems ("HDOS") for the production of AN/AVR-2 laser
detecting sets ("LDS"). The LDS's are used on aircraft and attack helicopters to
detect optical signals received from enemy targeting systems and to provide
warnings of laser threats to the aircrew, thereby allowing time for possible
evasive maneuvers away from those threats. The contract called for HDOS to
produce and deliver 99 LDS's to the Army for a firm fixed price of $38,412,099.

     On or about August 20, 1992, HDOS awarded purchase order no. 92205 to UDT
for the production and delivery of 2,030 photosensors, a component of the LDS.
The purchase order was in the amount of $869,256. The purchase order
incorporated military specifications that required UDT to perform certain
optical tests (rise time , responsivity, cross-talk and uniformity) on a 100%
basis. It also required UDT to certify that the photosensors were manufactured
and quality tested in accordance with applicable military specifications.

     Count One: On or about July 21, 1993, UDT shipped 84 photosensors to
     ---------
HDOS under purchase order no. 92205, along with a certificate of conformance
certifying that the photosensors had been manufactured and quality tested in
accordance with applicable military specifications. In truth and in fact, as UDT
well knew, this certification was false in that the required 100% optical tests
had not been performed. UDT's tester skipped these required tests entirely and
knowingly used the RNG program to create false test data. UDT's false
certification was within the jurisdiction of the U.S. Department of Defense.

     Count Two: On or about November 17, 1993, UDT shipped 98 photosensors to
     ---------
HDOS under purchase order no. 92205, along with a certificate of conformance
certifying that the photosensors had been manufactured and quality tested in
accordance with applicable military specifications. In truth and in fact, as UDT
well knew, this certification was false in that the required 100% optical
testing had not been performed. UDT's tester skipped the required tests and
knowingly used the RNG program to create false computer test data. UDT's false
certification was within the jurisdiction of the U.S. Department of Defense.

D.   The Powertronics Shipment (Count Three)
     ---------------------------------------   

                                      -3-

<PAGE>
 
     On or about April 24, 1991, the U.S. Navy awarded contract N0024-91-C-4017 
to Powertronics Systems, Incorporation ("Powertronics") for the production of 
arc-fault detector systems ("AFD systems"). The AFD systems are used on 
submarines to detect electrical switchboard arc faults and to automatically open
selected circuit breakers to extinguish the arc, thereby preventing fires in the
submarine power rooms. The contract called for Powertronics to produce and 
deliver 43 AFD systems to the Navy for a firm fixed price of $22,872,950.

     On or about October 5, 1992, Powertronics awarded purchase order no. 3599R 
to UDT for the production and delivery of 102 photosensor assemblies, a 
component of the AFD system. The purchase order was in the amount of $167,076. 
The purchase order incorporated military specifications that required UDT to 
perform a series of pre- and post-burn-in electrical and optical tests (dark 
current, shunt resistance, series resistance, responsivity, and LED/detector 
output) on a 100% basis. It also required UDT to certify that the photosensor 
assemblies were manufactured and quality tested in accordance with the military
specifications. 

     Count Three:  On or about November 23, 1993, UDT shipped photosensor 
     -----------
assemblies to Powertronics under purchase order no. 3599R, along with a 
certificate of conformance certifying that the photosensor assemblies had been 
manufactured and quality tested in accordance with applicable military 
specifications. In truth and in fact, as UDT well knew, this certification was 
false in that certain of the required 100% electrical and optical tests had not 
been performed or had been performed on a sample basis only. UDT's tester 
skipped the required tests and knowingly used the RNG program to create false 
computer test data. UDT's false certification was within the jurisdiction of the
U.S. Department of Defense.

E.   UDT's Remedial Efforts
     ----------------------

     Upon learning of the facts underlying the government's investigation, UDT 
immediately terminated the employment of the employees who had admittedly 
participated in the falsification of the hi-rel test data. UDT also timely 
notified its hi-rel customers about this falsification and the programs 
impacted. UDT also voluntarily undertook a retesting effort for all programs 
affected by the false testing. UDT estimates that this retesting effort will 
cost the company approximately $550,000. Finally, UDT has agreed to provide the 
U.S. Navy a complete shipset of photosensor assemblies (valued at approximately 
$250,000) to replace any that may have to be replaced in the fleet in the 
future.

                                      -4-
<PAGE>
 
                                   GUARANTEE
                                   ---------

     Due to the close business and financial relationships between UDT Sensors, 
Inc., ("UDT") and the undersigned ("Guarantor"), in consideration of the 
benefits which will accrue to Guarantor and as an inducement for and in
consideration of the agreement by the United States to enter into the Plea
Agreement and Stipulated Consent Judgement, Guarantor hereby agrees as follows:

     1.   Guarantee.     
          ---------

          (a)  Guarantor absolutely and unconditionally guarantees and agrees to
be liable for the full and indefeasible payment and performance when due of the
following (all of which are collectively referred to herein as the "Guaranteed
Obligations"): (i) all obligations, liabilities and indebtedness of any kind,
nature and description of UDT to the United States, including principal,
interest, charges, fees, costs and expenses arising under the Plea Agreement and
Consent Judgment, whether as principal, surety, endorser, guarantor or
otherwise, (ii) all expenses (including, without limitation, attorneys' fees and
legal expenses) incurred in connection with the preparation, execution,
delivery, recording, administration, collection, liquidation, enforcement and
defense of UDT's obligations.

          (b)  This Guarantee is a guaranty of payment and not of collection. 
Guarantor agrees that the United States need not attempt to collect any 
Guaranteed Obligations from UDT, Guarantor or any other Obligor or to realize 
upon any collateral, but may require Guarantor to make immediate payment of all 
of the Guaranteed Obligations when due, whether by maturity, acceleration or 
otherwise, or at any time thereafter.

          (c)  Payment by Guarantor shall be made from time to time on demand as
Guaranteed Obligations become due. Guarantor shall make all payments on the
Guaranteed Obligations free and clear of, and without deduction or withholding
for or on account of, any setoff, counterclaim, defense, duties, taxes, levies,
imposts, fees, deductions, withholding, restrictions or conditions of any kind.
One or more successive or concurrent actions may be brought hereon against
Guarantor either in the same action in which UDT is sued or in separate actions.
In the event any claim or action, or action on any judgment, based on this
Guarantee is brought against Guarantor, Guarantor agrees not to deduct, setoff,
or seek any counterclaim for or recoup any amounts which are or may be owed by
the United States to Guarantor.

     2.   Waivers and Consents.
          --------------------

          (a)  Notice of acceptance of this Guarantee, the making of loans and 
advances and providing other financial



<PAGE>
 
accommodations to UDT and presentment, demand, protest, notice of protest, 
notice of nonpayment or default and all other notices to which UDT or Guarantor 
is entitled are hereby waived by Guarantor. Guarantor also waives notice of and 
hereby consents to, (i) any amendment, modification, supplement, extension, 
renewal, or restatement of the Plea Agreement and Stipulated Consent Judgment, 
including, without limitation, extensions of time of payment of or increase or 
decrease in the amount of any of the Guaranteed Obligations or any collateral, 
and the guarantee made herein shall apply to the Plea Agreement and Stipulated 
Consent Judgment and the Guaranteed Obligations as so amended, modified, 
supplemented, renewed, restated or extended, increased or decreased, (ii) the 
taking, exchange, surrender and relating of collateral or guarantees now or at 
any time held by or available to the United States for the obligations of UDT. 
Guarantor agrees that the amount of the Guaranteed Obligations shall not be 
diminished and the liability of Guarantor hereunder shall not be otherwise 
impaired or affected by any of the foregoing.

          (b)  No invalidity, irregularity or unenforceability of all or any 
part of the Guaranteed Obligations shall affect, impair or be a defense to this 
Guarantee, nor shall any other circumstance which might otherwise constitute a 
defense available to or legal or equitable discharge of UDT in respect of any of
the Guaranteed Obligations, or Guarantor in respect of this Guarantee, affect, 
impair or be a defense to this Guarantee. Without limitation of the foregoing,
the liability of Guarantor hereunder shall not be discharged or impaired in any 
respect by reason of any failure by the United States to perfect or continue 
perfection of any lien or security interest in any collateral or any delay in 
perfecting any such lien or security interest.

     3.   Subordination.  Payment of all amounts now or hereafter owed to 
          -------------
Guarantor by UDT (except for salary, bonus and other cash compensation not to 
exceed a total of $275,000 annually and all non-cash benefits) is hereby 
subordinated in right of payment to the indefeasible payment in full to the 
United States of the Guaranteed obligations and all such amounts and any 
security and guarantees therefor and hereby assigned to the Unites States as 
security for the Guaranteed Obligations. Notwithstanding the foregoing, prior 
to a default by UDT, payments of amounts now or hereafter owed to Guarantor by 
UDT may be made as and when such amounts become due and payable.

     4.   Reinstatement.  If after receipt of any payment of, or proceeds of 
          -------------
collateral applied to the payment of, any of the Guaranteed Obligations, the 
United States is required to surrender or return such payment or proceeds to any
Person for any reason, then the Guaranteed Obligations intended to be satisfied 
by such payment or proceeds shall be reinstated and continue and this Guarantee
shall continue in full force and 

                                       2
<PAGE>
 
effect as if such payment or proceeds had not been received by United States.

     5.   Amendments and Waivers. Neither this Guarantee nor any provision 
          ----------------------
hereof shall be amended, modified, waived or discharged orally or by course of 
conduct, but only by a written agreement. The United States shall not, by any 
act, delay, omission or otherwise be deemed to have expressly or impliedly 
waived any of its rights, powers and/or remedies unless such waiver shall in 
writing and signed by an authorized employer of the United States.

     6.   GUARANTOR HEREBY WAIVES ANY RIGHT TO TRIAL BY JURY OF ANY CLAIM, 
DEMAND, ACTION OR CAUSE OF ACTION ARISING UNDER THIS GUARANTEE WHETHER IN 
CONTRACT, TORT, EQUITY OR OTHERWISE.

     7.   The United States shall not have any liability to Guarantor (whether
in tort, contract, equity or otherwise) for losses suffered by Guarantor in 
connection with, arising out of, or in any way related to the transactions or 
relationships contemplated by this Guarantee, or any act, omission or event 
occurring in connection herewith, unless it is determined by a final and 
non-appealable judgment or court order that the losses were the result of acts 
or omissions constituting gross negligence or willful misconduct. In any such 
litigation, the United States shall be entitled to the benefit of the rebuttable
presumption that it acted in good faith and with the exercise of ordinary care 
in the performance by it of the terms of the Guarantee.

     8.   Partial Invalidity. If any provision of this Guarantee is held to be 
          ------------------   
invalid or unenforceable, such invalidity or unenforceability shall not 
invalidate this Guarantee as a whole, but this Guarantee shall be construed as 
though it did not contain the particular provision held to be invalid or 
unenforceable and the rights and obligations of the parties shall be construed 
and enforced only to such extent as shall be permitted by applicable law.

     9.   Entire Agreement. This Guarantee represents the entire agreement and 
          ---------------- 
understanding of this parties concerning the subject matter hereof, and 
supersedes all other prior agreements, understandings, negotiations and 
discussions, representations, warranties, commitments, proposals, offers and 
contracts concerning the subject matter hereof, whether oral or written.

     10.  Successors and Assigns. This Guarantee shall be binding upon Guarantor
          ----------------------
and his or her heirs, executors, administrators, successors and assigns and 
shall inure to the benefit of the United States.

                                       3

<PAGE>
 
     11.  Construction. All references to the term "Guarantor" wherever used 
          ------------
herein shall mean Guarantor and his or her heirs, executors, administrators,
successors and assigns (including, without limitation, any receiver, trustee or 
custodian for Guarantor or any of his or her assets-or Guarantor in his or her 
capacity as debtor or debtor-in-possession under the United States Bankruptcy 
Code).

     IN WITNESS WHEREOF, Guarantor has executed and delivered this Guarantee as 
of the day and year first above written.

WITNESS:                                         /s/ Deepak Chopra
                                                 _________________________

/s/
___________________________

Name: ___________________________

                      Address: __________________________
                       
                               __________________________  

<PAGE>
 
STATE OF CALIFORNIA           )
                              )    ss.
COUNTY OF                     )

     On this 26th day of October, 1994 before me, a Notary Public in and for 
said County and State, personally appeared Deepak Chopra, personally known to me
(or proved to me on the basis of satisfactory evidence) to be the individual 
whose name is subscribed to this instrument, and acknowledged that he executed 
it.

     Witness my official seal.


[SEAL APPEARS HERE]

                                        /s/ Peggy L. Bennett    10-26-94
                                        --------------------------------
                                        Notary Public in and for said
                                        County and State

                                       5


<PAGE>
 
                                                                 EXHIBIT 99.2
 
                      AGREEMENT BETWEEN UDT SENSORS, INC.
                        AND THE DEPARTMENT OF THE NAVY

     1.   This Agreement is entered into between the Department of the Navy, on
behalf of the Department of Defense, and UDT SENSORS, INC. ("UDT" or "Company").
The sole purpose of this agreement is to evince that UDT is presently 
responsible to contract with the Federal Government by insuring that UDT has and
will continue a program of acceptable contracting practices and procedures, and 
by establishing and implementing a program of compliance review, audits, and 
reports. For purpose of this agreement, UDT shall mean UDT as a body corporate, 
its predecessors, successors, affiliates, subsidiaries, and/or divisions and all
directors, officers, employees and/or consultants of any of the aforesaid 
entities.

     2.   This agreement is based upon the resolution by UDT and the Department 
of Justice of the criminal investigation pursuant to the criminal and civil 
settlements reached by UDT with the United States Attorney's Office, Central 
District of California on or about October 24, 1994, as reflected in the 
Information and Plea Agreement and Stipulation for Consent Judgement and Consent
Judgement, attached as Annex I. This agreement shall not be used for any purpose
related to UDT's defense against or in mitigation or appeal of any criminal, 
civil or administrative charge, claim, or action related to or arising out of 
any criminal or civil investigation conducted by any component of the Department
of Justice or the Department of Defense.

     3.   By this agreement, UDT recognizes its corporate responsibility to 
ensure that UDT fully complies with all Federal procurement laws and regulations
when contracting, directly or indirectly, with the United States Government. In 
this regard, all aspects of UDT's corporate and business operations shall be 
conducted according to the highest code of corporate ethics, generally 
prevailing lawful and honest behavior, and the guidelines set by the letter and 
the spirit of this agreement.

     4.   To fulfill its corporate responsibilities, UDT has implemented a 
program which establishes compliant contracting procedures and practices for UDT
and by which UDT will monitor adherence to these procedures and practices. This 
program includes four major components:

          A.   CODE OF ETHICS: UDT has established a written Code of Ethics 
which provides notice to all employees that the highest standard of business 
ethics is mandated.

               (1)  The written Code of Ethics is maintained, reviewed on an 
annual basis by its duly appointed legal counsel,


<PAGE>
 
and updated as required for compliance with statutory and/or regulatory changes.

          B.   All UDT directors, officers, employees, and consultants are 
required to sign a certificate stating that they have read the Code of Ethics 
and understand its provisions.

               (1)  An Ethics Committee and its Chairman, the Director of 
Quality Assurance, reports and is responsible directly to the directors of UDT, 
and has been appointed to assist UDT employees in recognizing and reporting 
violations of the Code of Ethics or Standards of Conduct.

                    (i)  The Chairman of the Ethics Committee and the Ethics 
Committee members shall investigate all instances of suspected misconduct and 
shall report the findings to the Board of Directors, which shall thereafter 
provide for management response.

                    (ii) For the term of this agreement, the Ethics Committee 
and its Chairman, the Director of Quality Assurance, shall, within 10 working 
days after the end of each fiscal quarter, prepare and deliver to Counsel, 
Procurement Integrity Office, Department of the Navy a synopsis of each instance
of suspected and/or confirmed misconduct which became known to the Ethics 
Committee during the fiscal quarter. This synopsis shall be made without regard 
to the degree to which the Ethics Committee has been able, as of the due date of
the report, to investigate the misconduct. This synopsis shall include 
disclosure of any remedial action taken to date.

               (2)  A telephone "hot line" to the Ethics Committee has been 
established at UDT to facilitate employee reports of suspected misconduct.

          C.   WRITTEN CONTRACTING PROCEDURES: A manual containing the 
regulatory standards and acceptable practices for doing business with the 
Government and/or Government prime contractors has been developed for UDT. These
practices and procedures shall be applied to all business dealings involving 
Government contracts or subcontracts.

          D.   AUDIT AND COMPLIANCE REVIEW: The Chairman of the UDT Ethics 
Committee shall have the responsibility of directing and monitoring all audit 
and compliance review to ensure that all ethical standards are being met and 
that UDT's compliance program is being implemented. The duties in this regard of
the Chairman of the Ethics Committee shall include the following:

               (1)  Have final decision making authority with respect to matters
over which the Committee does not achieve a consensus, subject to the review of 
the Board of Directors.

               (2)  Review and approve all policies relating to quality, testing
and inspection as well as meet with supervisory

                                       2

<PAGE>
 
personnel who work in quality assurance, inspection and testing, to determine 
that they are fully trained in these areas.

               (3)  Have final decision making authority with respect to
quality, inspection and testing, subject to the review of the Board of
Directors.

               (4)  Review, with UDT's President, no less than four times
yearly, testing and inspection audits which shall be conducted by the Quality
Assurance Manager, including the compliance program audits which will be
conducted two times per year.

               (5)  Conduct with UDT's President no less than two testing and
inspection audits per year.

               (6)  Report both testing and inspection audit results to the
Ethics Committee and recommend any corrective action which the Ethics Committee
Chairman deems appropriate, with a full report directed to the Board of
Directors.

               (7)  Meet no less than twelve times per year with quality control
supervisors and other employees who work in the areas of quality, testing and
inspection to discuss and evaluate conformance with the procedures which have
been approved and adopted pursuant to this Agreement. Such meetings shall be
documented in writing.

               (8)  Convene special meetings of the Ethics Committee if it is
determined that one or more matters pertaining to any aspect of this Agreement
require the immediate attention of the Committee.

               (9)  Cause a report to be issued immediately to the Navy should
the Ethics Committee Chairman become unable to carry out the foregoing
responsibilities or if he is or will be replaced.  This report should contain
the UDT's proposal for another qualified officer to carry out the
foregoing duties.

          E.   TRAINING:  A comprehensive, recurring-type training program has
been established for UDT directors, officers, employees, and consultants
regarding the Code of Ethics and acceptable contracting practices.

     The schedule for completed and planned compliance actions for this program
will be as previously submitted and approved by the Navy.

     5.   UDT further agrees to:

          A.   Complete any planned compliance actions as scheduled and
coordinated and approved by the Navy.

                                       3

<PAGE>
 
          B.   Within ten (10) working days after the end of each fiscal 
quarter, prepare and provide a report to the Navy Debarring and Suspending 
Official, or his designee, describing UDT's implementation of this agreement.

          C.   Within ten (10) working days after the end of each fiscal 
quarter, UDT shall report the status of:  (1) All instances of disciplinary 
action for violations of the Standards of Conduct; (2) all known, ongoing 
criminal investigations; (3) all known qui tam suits; (4) all known or suspected
defective pricing cases; (5) all hotline calls received by the Ethics Advisor
(including a description of the complaint and any remedial action taken or
planned); and (6) any other matter which might affect UDT's present
responsibility status, including but not limited to actual or potential
suspension and/or debarment actions by other Government and quasi-governmental
agencies.

          D.   Allow designated representatives of the Department of Defense to
interview UDT personnel and to examine UDT's financial books, records, and other
company documents for the purpose of evaluating UDT's compliance with the terms
of this agreement; such materials described above shall be made available by UDT
after reasonable notice for inspection, audit and/or reproduction, provided,
however, the Department of Defense shall not be entitled to examine documents
properly subject to the attorney-client or attorney work product privileges, not
to copy: (1) Documents containing technical data or computer software, except in
accordance with government contract data rights provisions, or (2) Documents
containing trade secrets.

          E.   Disclose to the Department of Defense and to the prime Government
customer if such customer is not a DOD component, all instances in which there 
are reasonable grounds to believe that UDT, its directors, officers, employees, 
consultants, suppliers and/or Government personnel have violated Federal laws or
regulations relating to U.S. Government procurements. Further, UDT shall take 
immediate corrective measures to remedy the matter disclosed, and to notify the 
Department of Defense, and the prime Government customer, if the matter relates 
to a non-DOD contract, of the corrective action taken and UDT's opinion 
regarding any impact the matter may have on the Government.

          F.   Cooperate fully with any investigation by the Department of 
Justice or the Department of Defense of which UDT knows or learns in the future.

          G.   Upon conviction of UDT for violation of any Federal criminal 
statute, take appropriate disciplinary action against all responsible 
individuals.

          H.   Upon indictment of, or the entering a guilty plea or plea of nolo
contendere by any director, officer, employee or consultant of UDT for violation
of an Federal criminal statue, which violation occurred in connection with the 
individual's 

                                       4

<PAGE>
 
performance of duties for or on behalf of UDT, immediately remove the director, 
officers, employee or consultant from active status with the Company relating to
any dealings with the U.S. Government.

          I.   Upon unappealed conviction of, or after an unsuccessful appeal by
any director, officer, employee or consultant of UDT for violation of any 
Federal criminal statute, which violation occurred in connection with the 
individual's performance of duties for or on behalf of UDT, take prompt action 
to terminate the employment of such officer, employee or consultant, or as 
appropriate to remove such director from the UDT Board of Directors in 
recognition of Title 10, U.S.C. (S) D2408.

          J.   Treat all costs associated with the termination, severance and/or
removal of any director, officer, employee or consultant of UDT under paragraph 
I, above, as unallowable for Federal Government Contract purposes.

          K.   Continue for a period of three years following full and complete 
implementation, the actions and procedures described in Annex I and elsewhere in
the body of this agreement.

     6.   During the term of this agreement, UDT shall not knowingly employ,
engage or accept the services of an individual who is listed by a Federal Agency
as debarred, suspended, or otherwise ineligible for Federal contracting.
Reasonable inquiry shall be made into the suspension/debarment status of any
potential employee or consultant prior to the offer of employment or engagement
of services. Further, UDT shall promptly terminate the employment of or contract
for services with any individual who was suspended or debarred as of the
effective date of their association with UDT. Moreover, UDT shall immediately
remove such individuals from responsibility for or involvement with Government
contract matters until the resolution of any question there might be regarding
their suspension or debarment status as of the time of their association with
UDT.

     7.   During the term of this agreement, UDT shall not knowingly enter into 
any subcontract or other business relationship relating to Federal Government 
contracts with any individual or business entity listed as debarred, suspended, 
or otherwise ineligible for contracting by a Federal Agency (hereinafter "listed
contractor") until it has prepared a notice in form and content as specified in 
FAR 9.405-2(b), and has submitted a copy thereof to the Counsel, Procurement 
Integrity Office. Further, UDT shall make reasonable inquiry into the listed 
contractor status of each prospective business associate prior to the execution 
of any subcontract or the commencement of any other type of business 
relationship. In addition, UDT shall give written notice of the prohibition 
effected by this paragraph to all parties to any potential transaction involving
a subcontract or other business relationship relating to Federal Government 
contracting prior to

                                       5

<PAGE>
 
the execution of such subcontract or the commencement of such business 
relationship.

     8.   In addition to these costs stated in paragraphs 5.J and 9, UDT agrees 
that the costs described below shall be unallowable for United States 
Government contract purposes and shall not be charged directly or indirectly to 
any such contract or subcontract.

          A.   All costs of performing the actions set forth in Annex I 
accomplished by UDT subsequent to its learning of the investigation that 
resulted in the Information and Plea Agreement and Stipulation for Consent 
Judgment and Consent Judgment set forth in Annex II.

          B.   All costs of legal services (whether performed by in-house or 
private counsel), administrative and clerical services, services of accountants
and consultants, salaries and wages of employees, officers, and directors, 
travel, and any costs directly related to the aforesaid, incurred in the 
implementation of and/or continued compliance with the terms of this agreement.

     9.   Within thirty days of the effective date of this agreement, UDT 
Corporation will remit the sum of $10,000, made payable to the Treasury of the 
United State, and for final payment of these administrative costs incurred, or 
to be incurred, by the Government because of UDT's improper activity, which 
include but are not limited to the costs of investigating the charges, and of 
monitoring, reviewing, enforcing, and administering this Agreement.

     10.  Except as provided in paragraph 14, the execution of this agreement by
the Navy in no way waives any criminal, civil, contractual, or administrative 
remedy or right that the Government may have for the acts described in Annex I 
or for any other conduct that would give rise to such remedies.  In addition, 
this agreement does not alter or limit in any way the releases and waivers 
previously provided for by the agreements with the U.S. Department of Justice, 
set forth in Annex I.

     11.  Failure by UDT to meet any of its obligations under the terms and 
spirit of this agreement, or to timely perform any of the actions identified in 
Annex I, not cured to the reasonable satisfaction of the Navy Debarring 
Authority within 20 working days, or as otherwise agreed, after receipt of 
written notice of such failure, shall constitute a cause for institution of 
suspension or debarment proceedings subject to the procedures established by the
Federal Acquisition Regulation and any other applicable statute or regulation.

                                       6
<PAGE>
 
     12.  By execution of this agreement, UDT releases the United States, its 
employees, agents, and instrumentalities, in both official and personal 
capacities, of any and all liability arising out of or otherwise related to this
agreement. Further, UDT agrees not to file any claim against the United States,
its employees, agents, and instrumentalities, in both official and personal 
capacities, in any form or jurisdiction, with regard to any matter arising out 
of or otherwise related to this agreement.

     13.  By execution of this agreement, UDT avers that any adverse action 
taken or to be taken against any UDT director, officer, employee, consultant, or
agent, with regard to any matter arising out of or related to the facts and 
circumstances set forth in Annex II are the result solely of UDT's initiatives 
and decisions, and are not the result of any action by or on behalf of the 
United States, its employees, agents or instrumentalities.

     14.  UDT agrees to indemnify the Government against, and hold the 
Government harmless from, any and all claims, liabilities, obligations, and 
causes of action of whatsoever kind or nature for injury to, or death of, any 
person, and for any injury or damage to or destruction of any property, arising 
out of or as a result of the facts which form the basis for this agreement, even
if the Government's liability to any person arises out of the acts or omissions 
of the Government, its employees, agents, invitees, or representatives of any 
other description whatsoever.

     15.  In recognition of the actions by and covenants of UDT set forth 
herein, the Navy, on behalf of the Department of Defense, will not suspend or 
debar UDT based upon the facts set forth in Annex II.

     16.  This agreement is a public document and may be distributed by the Navy
throughout the Executive Branch of the Government and to other interested 
parties.

     17.  Modifications to this agreement may be made but shall have no effect 
until their terms are expressly incorporated in a writing which has been 
executed by both parties. Neither party shall seek or accept the benefit of a 
judicial or quasi-judicial order directing the other to execute a writing which 
would, if executed, modify this agreement.

     18.  For purposes of interpretation of this agreement, or any part hereof, 
by a court of competent jurisdiction (or any other judicial or quasi-judicial 
body), this agreement shall be deemed to have been drafted equally by all 
parties hereto.

                                       7
<PAGE>
 
     19.  This agreement shall become effective on the date of the last
signature hereto and shall continue thereafter for a period of three years from
that date or, should UDT for any reason cease to be in full compliance with the
letter and spirit of this agreement, for a period of three years following
reestablishment for full compliance as determined by the Navy Debarring and
Suspending Official, whichever period is longest.

     20.  This agreement constitutes the entire agreement between the parties
and supersedes all prior agreements and understandings, oral or written, with
respect to the subject hereof. This agreement shall inure to the benefit of,
and be binding upon, the parties and their respective successors and assigns.

Date: 7/25/95                              UDT SENSORS, INC.

                                           By: /s/ Deepak Chopra
                                              ----------------------------------
                                              Deepak Chopra
                                              President and CEO

Date: November 9, 1995                     DEPARTMENT OF THE NAVY

                                           By: /s/ 
                                              ----------------------------------
                                              Department and Suspension Officer
                                              Office of Procurement Integrity

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