COHERENT INC
8-A12G/A, 1998-07-01
LABORATORY ANALYTICAL INSTRUMENTS
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<PAGE>

                         SECURITIES AND EXCHANGE COMMISSION
                               WASHINGTON, D.C. 20549



                                     __________



                                     FORM 8-A/A



                 FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                      PURSUANT TO SECTION 12(b) OR (g) OF THE
                          SECURITIES EXCHANGE ACT OF 1934




                                    COHERENT, INC.
                                ----------------------
               (Exact name of Registrant as specified in its charter)



     Delaware                                        94-1622541
     --------                                        ----------
(State of incorporation or organization)    (IRS Employer Identification No.)


                              5100 Patrick Henry Drive
                           Santa Clara, California  95054
                (Address of principal executive offices) (Zip Code)

                                     __________

Securities to be registered pursuant to Section 12(b) of the Act:

     Title of each class                     Name of each exchange on which
     to be so registered                     each class is to be registered
     -------------------                     ------------------------------
          None                                             None

Securities to be registered pursuant to Section 12(g) of the Act:

                            Common Share Purchase Rights
                            ----------------------------
                                  (Title of Class)
<PAGE>

Item 1.   DESCRIPTION OF SECURITIES TO BE REGISTERED.

          On December 16, 1988, pursuant to a Common Shares Rights Agreement
(the "Rights Agreement") between Coherent, Inc. (the "Company") and BankBoston,
N.A. (formerly The First National Bank of Boston), as Rights Agent (the "Rights
Agent"), the Company's Board of Directors declared a dividend of one right (a
"Right") to purchase one share of the Company's Common Stock, $.01 par value
("Common Shares") for each outstanding Common Share.  The Rights Agreement was
amended and restated on June 24, 1998.  The dividend was paid on December 16,
1988 (the "Record Date") to stockholders of record as of the close of business
on that date.  Each Right entitles the registered holder to purchase from the
Company one Common Share at an exercise price of $80.00 (the "Purchase Price"),
subject to adjustment.

     The following summary of the principal terms of the Rights Agreement, as
amended, is a general description only and is subject to the detailed terms and
conditions of the Rights Agreement.  A copy of the Rights Agreement is attached
as Exhibit 1 to this Registration Statement and is incorporated herein by
reference.

RIGHTS EVIDENCED BY COMMON SHARE CERTIFICATES

     The Rights will not be exercisable until the Distribution Date (defined
below).  Certificates for the Rights ("Rights Certificates") will not be sent to
shareholders and the Rights will attach to and trade only together with the
Common Shares.  Accordingly, Common Share certificates outstanding on the Record
Date will evidence the Rights related thereto, and Common Share certificates
issued after the Record Date will contain a notation incorporating the Rights
Agreement by reference.  Until the Distribution Date (or earlier redemption or
expiration of the Rights), the surrender or transfer of any certificates for
Common Shares, outstanding as of the Record Date, even without notation

<PAGE>

or a copy of the Summary of Rights being attached thereto, will also 
constitute the transfer of the Rights associated with the Common Shares 
represented by such certificate.

DISTRIBUTION DATE

     The Rights will separate from the Common Shares, Rights Certificates 
will be issued and the Rights will become exercisable upon the earlier of: 
(i) 10 days following a public announcement that a person or group of 
affiliated or associated persons (an "Acquiring Person") has acquired, or 
obtained the right to acquire, beneficial ownership of 20% or more of the 
outstanding Common Shares, or (ii) 10 business days (or such later date as 
may be determined by a majority of the Continuing Directors) following the 
commencement of, or announcement of a tender offer or exchange offer the 
consummation of which would result in the beneficial ownership by a person or 
group of 20% or more of the outstanding Common Shares.  The earlier of such 
dates is referred to as the "Distribution Date."

ISSUANCE OF RIGHTS CERTIFICATES; EXPIRATION OF RIGHTS

     As soon as practicable following the Distribution Date, separate Rights 
Certificates will be mailed to holders of record of the Common Shares as of 
the close of business on the Distribution Date and such separate Rights 
Certificates alone will evidence the Rights from and after the Distribution 
Date.  All Common Shares issued prior to the Distribution Date will be issued 
with Rights.  The Rights will expire on the earliest of (i) December 16, 2008 
(the "Final Expiration Date") or (ii) redemption or exchange of the Rights as 
described below.

<PAGE>

INITIAL EXERCISE OF THE RIGHTS

     Following the Distribution Date, and until one of the further events 
described below, holders of the Rights will be entitled to receive, upon 
exercise and the payment of the Purchase Price, one Common Share.  In the 
event that the Company does not have Common Shares available for all Rights 
to be exercised, or the Board decides that such action is necessary and not 
contrary to the interests of Rights holders, the Company may instead 
substitute cash, assets or other securities for the Common Shares for which 
the Rights would have been exercisable under this provision or as described 
below.

RIGHT TO BUY COMPANY COMMON SHARES

     Unless the Rights are earlier redeemed, in the event that an Acquiring 
Person becomes the beneficial owner of 20% or more of the Company's Common 
Shares then outstanding, then each holder of a Right which has not 
theretofore been exercised (other than Rights beneficially owned by the 
Acquiring Person, which will thereafter be void) will thereafter have the 
right to receive, upon exercise, Common Shares having a value equal to two 
times the Purchase Price. Rights are not exercisable following the occurrence 
of an event as described above until such time as the Rights are no longer 
redeemable by the Company as set forth below.

RIGHT TO BUY ACQUIRING COMPANY STOCK

     Similarly, unless the Rights are earlier redeemed, in the event that, 
after an Acquiring Person becomes the beneficial owner of 20% or more of the 
Company's Common Shares then outstanding, (i) the Company is acquired in a 
merger or other business combination transaction, or (ii) 50% or more of the 
Company's consolidated

<PAGE>

assets or earning power are sold (other than in transactions in the ordinary 
course of business), proper provision must be made so that each holder of a 
Right which has not theretofore been exercised (other than Rights 
beneficially owned by the Acquiring Person, which will thereafter be void) 
will thereafter have the right to receive, upon exercise, shares of common 
stock of the acquiring company having a value equal to two times the Purchase 
Price.

EXCHANGE PROVISION

     At any time after the acquisition by an Acquiring Person of 20% or more 
of the Company's outstanding Common Shares and prior to the acquisition by 
such Acquiring Person of 50% or more of the Company's outstanding Common 
Shares, the Board of Directors of the Company may exchange the Rights (other 
than Rights owned by the Acquiring Person), in whole or in part, at an 
exchange ratio of one Common Share per Right.  However, if a majority of the 
Company's Board of Directors is elected by stockholder action by written 
consent, then for a period of 180 days following such election the Rights 
cannot be exchanged if such exchange is reasonably likely to have the purpose 
or effect of facilitating an acquisition of the Company by a person or entity 
who proposed, nominated or supported a director of the Company so elected by 
written consent (an "Interested Person").

REDEMPTION

     At any time on or prior to the close of business on the earlier of (i) 
the Distribution Date, or (ii) the Final Expiration Date of the Rights, the 
Company may redeem the Rights in whole, but not in part, at a price of $0.001 
per Right. However, if a

<PAGE>

majority of the Company's Board of Directors is elected by stockholder action 
by written consent, then for a period of 180 days following such election the 
Rights cannot be redeemed if such redemption is reasonably likely to have the 
purpose or effect of facilitating an acquisition of the Company by an 
Interested Person.

ADJUSTMENTS TO PREVENT DILUTION

     The Purchase Price payable, the number of Rights, and the number of 
Common Shares or other securities or property issuable upon exercise of the 
Rights are subject to adjustment from time to time in connection with the 
dilutive issuances by the Company as set forth in the Rights Agreement.  With 
certain exceptions, no adjustment in the Purchase Price will be required 
until cumulative adjustments require an adjustment of at least 1% in such 
Purchase Price. 

CASH PAID INSTEAD OF ISSUING FRACTIONAL SHARES

     No fractional portion less than integral multiples of one Common Share 
will be issued upon exercise of a Right and in lieu thereof, an adjustment in 
cash will be made based on the market price of the Common Shares on the last 
trading date prior to the date of exercise. 

NO STOCKHOLDERS' RIGHTS PRIOR TO EXERCISE

     Until a Right is exercised, the holder thereof, as such, will have no 
rights as a stockholder of the Company (other than any rights resulting from 
such holder's ownership of Common Shares), including, without limitation, the 
right to vote or to receive dividends.

<PAGE>

AMENDMENT OF RIGHTS AGREEMENT

     The terms of the Rights and the Rights Agreement may be amended in any 
respect without the consent of the Rights holders on or prior to the 
Distribution Date; thereafter, the terms of the Rights and the Rights 
Agreement may be amended without the consent of the Rights holders in order 
to cure any ambiguities or to make changes which do not adversely affect the 
interests of Rights holders (other than the Acquiring Person).  However, if a 
majority of the Company's Board of Directors is elected by stockholder action 
by written consent, then for a period of 180 days following such election the 
Rights Agreement cannot be amended in any manner reasonably likely to have 
the purpose or effect of facilitating an acquisition of the Company by an 
Interested Person.

CERTAIN ANTI-TAKEOVER EFFECTS

     The Rights approved by the Board are designed to protect and maximize 
the value of the outstanding equity interests in the Company in the event of 
an unsolicited attempt by an acquiror to take over the Company, in a manner 
or on terms not approved by the Board of Directors.  Takeover attempts 
frequently include coercive tactics to deprive the Company's Board of 
Directors and its stockholders of any real opportunity to determine the 
destiny of the Company. The Rights have been declared by the Board in order 
to deter such tactics, including a gradual accumulation of shares in the open 
market of a 20% or greater position to be followed by a merger or a partial 
or two-tier tender offer that does not treat all stockholders equally.  These 
tactics unfairly pressure stockholders, squeeze them out of their investment 
without giving them any real choice and deprive them of the full value of 
their shares.

<PAGE>

     The Rights are not intended to prevent a takeover of the Company and 
will not do so.  Subject to the restrictions described above, the Rights may 
be redeemed by the Company at $0.001 per Right at any time prior to the 
Distribution Date.  Accordingly, the Rights should not interfere with any 
merger or business combination approved by the Board of Directors.

     Issuance of the Rights does not in any way weaken the financial strength 
of the Company or interfere with its business plans.  The issuance of the 
Rights themselves has no dilutive effect, will not affect reported earnings 
per share, should not be taxable to the Company or to its shareholders, and 
will not change the way in which the Company's shares are presently traded.  
The Company's Board of Directors believes that the Rights represent a sound 
and reasonable means of addressing the complex issues of corporate policy 
created by the current takeover environment.

     However, the Rights may have the effect of rendering more difficult or 
discouraging an acquisition of the Company deemed undesirable by the Board of 
Directors.  The Rights may cause substantial dilution to a person or group 
that attempts to acquire the Company on terms or in a manner not approved by 
the Company's Board of Directors, except pursuant to an offer conditioned 
upon the negation, purchase or redemption of the Rights.

Item 2.   EXHIBITS.

          1.   First Amended and Restated Common Shares Rights Agreement, dated
               as of June 24, 1998 between Coherent, Inc. and BankBoston, N.A.,
               including the form of Rights Certificate and the Summary of
               Rights attached thereto as Exhibits A and B, respectively.
<PAGE>

                                     SIGNATURE

     Pursuant to the requirements of Section 12 of the Securities Exchange Act
of 1934, the Registrant has duly caused this Registration Statement to be signed
on its behalf by the undersigned, thereto duly authorized.

                              COHERENT, INC.


Date:   6-29-98
     -------------
                              By:  /s/ Scott H. Miller
                                 ------------------------------------------
                                       Scott H. Miller
                                 Senior Vice President & General Counsel
<PAGE>

                                EXHIBIT INDEX

<TABLE>
<CAPTION>

EXHIBIT
NUMBER                            DESCRIPTION
- --------                          -----------
<S>       <C>
   1.     First Amended and Restated Common Shares Rights Agreement, dated as 
          of June 24, 1998 between Coherent, Inc. and BankBoston, N.A., 
          including the form of Rights Certificate and the Summary of Rights
          attached thereto as Exhibits A and B, respectively.
</TABLE>


<PAGE>



                                    COHERENT, INC.

                                         AND

                                   BANKBOSTON, N.A.

                                     RIGHTS AGENT





                              FIRST AMENDED AND RESTATED

                           COMMON SHARES RIGHTS AGREEMENT

                              DATED AS OF JUNE 24, 1998

<PAGE>

                                  TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
Section 1.    Certain Definitions. . . . . . . . . . . . . . . . . . . . . . -1-

Section 2.    Appointment of Rights Agent. . . . . . . . . . . . . . . . . . -7-

Section 3.    Issuance of Rights Certificates. . . . . . . . . . . . . . . . -7-

Section 4.    Form of Rights Certificates. . . . . . . . . . . . . . . . . . -9-

Section 5.    Countersignature and Registration. . . . . . . . . . . . . . .-10-

Section 6.    Transfer, Split Up, Combination and Exchange of Rights
              Certificates; Mutilated, Destroyed, Lost or Stolen Rights
              Certificates . . . . . . . . . . . . . . . . . . . . . . . . .-11-

Section 7.    Exercise of Rights; Exercise Price; Expiration Date of
              Rights . . . . . . . . . . . . . . . . . . . . . . . . . . . .-11-

Section 8.    Cancellation and Destruction of Rights Certificates. . . . . .-13-

Section 9.    Reservation and Availability of Common Shares. . . . . . . . .-14-

Section 10.   Record Date. . . . . . . . . . . . . . . . . . . . . . . . . .-15-

Section 11.   Adjustment of Exercise Price, Number of Shares or Number of
              Rights . . . . . . . . . . . . . . . . . . . . . . . . . . . .-15-

Section 12.   Certificate of Adjusted Exercise Price or Number of Shares . .-21-

Section 13.   Consolidation, Merger or Sale or Transfer of Assets or
              Earning Power. . . . . . . . . . . . . . . . . . . . . . . . .-21-

Section 14.   Fractional Rights and Fractional Shares. . . . . . . . . . . .-25-

Section 15.   Rights of Action . . . . . . . . . . . . . . . . . . . . . . .-26-

Section 16.    Agreement of Rights Holders . . . . . . . . . . . . . . . . .-26-

Section 17.   Rights Certificate Holder Not Deemed a Stockholder . . . . . .-26-

Section 18.   Concerning the Rights Agent. . . . . . . . . . . . . . . . . .-27-

Section 19.   Merger or Consolidation or Change of Name of Rights Agent. . .-27-

                                       -i-
<PAGE>

Section 20.   Duties of Rights Agent . . . . . . . . . . . . . . . . . . . .-28-

Section 21.   Change of Rights Agent . . . . . . . . . . . . . . . . . . . .-30-

Section 22.   Issuance of New Rights Certificates. . . . . . . . . . . . . .-31-

Section 23.   Redemption . . . . . . . . . . . . . . . . . . . . . . . . . .-31-

Section 24.   Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . .-32-

Section 25.   Notice of Certain Events . . . . . . . . . . . . . . . . . . .-34-

Section 26.   Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . .-34-

Section 27.   Supplements and Amendments . . . . . . . . . . . . . . . . . .-35-

Section 28.   Successors . . . . . . . . . . . . . . . . . . . . . . . . . .-36-

Section 29.   Determinations and Actions by the Board of Directors, etc. . .-36-

Section 30.   Benefits of this Agreement . . . . . . . . . . . . . . . . . .-36-

Section 31.   Severability . . . . . . . . . . . . . . . . . . . . . . . . .-36-

Section 32.   Governing Law. . . . . . . . . . . . . . . . . . . . . . . . .-37-

Section 33.   Counterparts . . . . . . . . . . . . . . . . . . . . . . . . .-37-

Section 34.   Descriptive Headings . . . . . . . . . . . . . . . . . . . . .-37-
</TABLE>
                                      -ii-
<PAGE>

                                  TABLE OF CONTENTS
                                     (CONTINUED)
<TABLE>
<CAPTION>
                                                                           PAGE
                                                                           ----
<S>                                                                        <C>
EXHIBITS

Exhibit A     Form of Rights Certificate

Exhibit B     Summary of Rights

</TABLE>

                                     -iii-
<PAGE>

                              FIRST AMENDED AND RESTATED

                           COMMON SHARES RIGHTS AGREEMENT

       This First Amended and Restated Shares Right Agreement (the 
"Agreement"), dated as of June 24, 1998, is entered into by and between 
Coherent, Inc., a Delaware corporation (the "COMPANY"), and BankBoston, N.A. 
(formerly The First National Bank of Boston) (the "RIGHTS AGENT").

       WHEREAS, the Company and the Rights Agent are parties to that certain 
Common Shares Rights Agreement dated as of December 16, 1988 (the "PRIOR 
AGREEMENT");

       WHEREAS, the Board of Directors of the Company has determined that it 
is in the best interests of the Company and its stockholders to amend and 
restate the Prior Agreement as set forth herein and the Rights Agent has 
agreed to the amendment and restatement of the Prior Agreement as set forth 
herein;

       WHEREAS, the Company  has determined that, pursuant to Section 26 of 
the Prior Agreement, the Prior Agreement may be amended and restated as set 
forth herein without the approval of the holders of the Rights (as 
hereinafter defined); and

       WHEREAS, on December 16, 1988 (the "RIGHTS DIVIDEND DECLARATION 
DATE"), the Board of Directors of the Company authorized and declared a 
dividend of one share purchase right (a "RIGHT") for each Common Share (as 
hereinafter defined) of the Company outstanding as of the Close of Business 
(as hereinafter defined) on January 6, 1989 (the "Record Date"), each Right 
representing the right to purchase one Common Share (as such number may be 
adjusted pursuant to the provisions of this Agreement), upon the terms and 
subject to the conditions herein set forth, and further authorized and 
directed the issuance of one Right (as such number may be adjusted pursuant 
to the provisions of this Agreement) with respect to each Common Share that 
shall become outstanding between the Record Date and the earlier of the 
Distribution Date and the Expiration Date (as such terms are hereinafter 
defined), and in certain circumstances after the Distribution Date.

       NOW, THEREFORE, in consideration of the promises and the mutual 
agreements herein set forth, the Prior Agreement is hereby amended and 
restated to read in full as follows:

       Section 1.    CERTAIN DEFINITIONS.  For purposes of this Agreement, 
the following terms have the meanings indicated:

              (a)    "ACQUIRING PERSON" shall mean any Person who or which, 
together with all Affiliates and Associates of such Person, shall be the 
Beneficial Owner of 20% or more of the Common Shares then outstanding, but 
shall not include the Company, any Subsidiary of the Company or any employee 
benefit plan of the Company or of any Subsidiary of the Company, or any 
entity holding Common Shares for or pursuant to the terms of any such plan.  
Notwithstanding the foregoing, no Person shall be deemed to be an Acquiring 
Person as the result of an acquisition of Common Shares by

<PAGE>

the Company which, by reducing the number of shares outstanding, increases 
the proportionate number of shares beneficially owned by such Person to 20% 
or more of the Common Shares of the Company then outstanding; PROVIDED, 
HOWEVER, that if a Person shall become the Beneficial Owner of 20% or more of 
the Common Shares of the Company then outstanding by reason of share 
purchases by the Company and shall, after such share purchases by the 
Company, become the Beneficial Owner of any additional Common Shares of the 
Company (other than pursuant to a dividend or distribution paid or made by 
the Company on the outstanding Common Shares in Common Shares or pursuant to 
a split or subdivision of the outstanding Common Shares), then such Person 
shall be deemed to be an Acquiring Person unless upon becoming the Beneficial 
Owner of such additional Common Shares of the Company such Person does not 
beneficially own 20% or more of the Common Shares of the Company then 
outstanding. Notwithstanding the foregoing, (i) if the Company's Board of 
Directors determines in good faith that a Person who would otherwise be an 
"Acquiring Person," as defined pursuant to the foregoing provisions of this 
paragraph (a), has become such inadvertently (including, without limitation, 
because (A) such Person was unaware that it beneficially owned a percentage 
of the Common Shares that would otherwise cause such Person to be an 
"Acquiring Person," as defined pursuant to the foregoing provisions of this 
paragraph (a), or (B) such Person was aware of the extent of the Common 
Shares it beneficially owned but had no actual knowledge of the consequences 
of such beneficial ownership under this Agreement) and without any intention 
of changing or influencing control of the Company, and if such Person 
divested or divests as promptly as practicable a sufficient number of Common 
Shares so that such Person would no longer be an "Acquiring Person," as 
defined pursuant to the foregoing provisions of this paragraph (a), then such 
Person shall not be deemed to be or to have become an "Acquiring Person" for 
any purposes of this Agreement; and (ii) if, as of the date hereof, any 
Person is the Beneficial Owner of 20% or more of the Common Shares 
outstanding, such Person shall not be or become an "Acquiring Person," as 
defined pursuant to the foregoing provisions of this paragraph (a), unless 
and until such time as such Person shall become the Beneficial Owner of 
additional Common Shares (other than pursuant to a dividend or distribution 
paid or made by the Company on the outstanding Common Shares in Common Shares 
or pursuant to a split or subdivision of the outstanding Common Shares), 
unless, upon becoming the Beneficial Owner of such additional Common Shares, 
such Person is not then the Beneficial Owner of 20% or more of the Common 
Shares then outstanding.

              (b)    "ADJUSTMENT FRACTION" shall have the meaning set forth 
in Section 11(a)(i) hereof.

              (c)    "AFFILIATE" and "ASSOCIATE" shall have the respective 
meanings ascribed to such terms in Rule 12b-2 of the General Rules and 
Regulations under the Exchange Act, as in effect on the date of this 
Agreement.

              (d)    A Person shall be deemed the "BENEFICIAL OWNER" of and 
shall be deemed to "BENEFICIALLY OWN" any securities:

                     (i)    which such Person or any of such Person's
Affiliates or Associates beneficially owns, directly or indirectly, for purposes
of Section 13(d) of the Exchange Act and Rule 13d-3 thereunder (or any
comparable or successor law or regulation);

                                     -2-
<PAGE>

                     (ii)   which such Person or any of such Person's 
Affiliates or Associates has (A) the right to acquire (whether such right is 
exercisable immediately or only after the passage of time) pursuant to any 
agreement, arrangement or understanding (other than customary agreements with 
and between underwriters and selling group members with respect to a bona 
fide public offering of securities), or upon the exercise of conversion 
rights, exchange rights, rights (other than the Rights), warrants or options, 
or otherwise; PROVIDED, HOWEVER, that a Person shall not be deemed pursuant 
to this Section 1(d)(ii)(A) to be the Beneficial Owner of, or to beneficially 
own, (1) securities tendered pursuant to a tender or exchange offer made by 
or on behalf of such Person or any of such Person's Affiliates or Associates 
until such tendered securities are accepted for purchase or exchange, or (2) 
securities which a Person or any of such Person's Affiliates or Associates 
may be deemed to have the right to acquire pursuant to any merger or other 
acquisition agreement between the Company and such Person (or one or more of 
its Affiliates or Associates) if such agreement has been approved by the 
Board of Directors of the Company prior to there being an Acquiring Person; 
or (B) the right to vote pursuant to any agreement, arrangement or 
understanding; PROVIDED, HOWEVER, that a Person shall not be deemed the 
Beneficial Owner of, or to beneficially own, any security under this Section 
1(d)(ii)(B) if the agreement, arrangement or understanding to vote such 
security (1) arises solely from a revocable proxy or consent given to such 
Person in response to a public proxy or consent solicitation made pursuant 
to, and in accordance with, the applicable rules and regulations of the 
Exchange Act and (2) is not also then reportable on Schedule 13D under the 
Exchange Act (or any comparable or successor report); or

                     (iii)  which are beneficially owned, directly or 
indirectly, by any other Person (or any Affiliate or Associate thereof) with 
which such Person or any of such Person's Affiliates or Associates has any 
agreement, arrangement or understanding, whether or not in writing (other 
than customary agreements with and between underwriters and selling group 
members with respect to a bona fide public offering of securities) for the 
purpose of acquiring, holding, voting (except to the extent contemplated by 
the proviso to Section 1(d)(ii)(B)) or disposing of any securities of the 
Company; PROVIDED, HOWEVER, that in no case shall an officer or director of 
the Company be deemed (x) the Beneficial Owner of any securities beneficially 
owned by another officer or director of the Company solely by reason of 
actions undertaken by such persons in their capacity as officers or directors 
of the Company or (y) the Beneficial Owner of securities held of record by 
the trustee of any employee benefit plan of the Company or any Subsidiary of 
the Company for the benefit of any employee of the Company or any Subsidiary 
of the Company, other than the officer or director, by reason of any 
influence that such officer or director may have over the voting of the 
securities held in the plan.

              (e)    "BUSINESS DAY" shall mean any day other than a Saturday, 
Sunday or a day on which banking institutions in New York are authorized or 
obligated by law or executive order to close.

              (f)    "CLOSE OF BUSINESS" on any given date shall mean 5:00 
P.M., New York time, on such date; PROVIDED, HOWEVER, that if such date is 
not a Business Day it shall mean 5:00 P.M., New York time, on the next 
succeeding Business Day.

                                     -3-
<PAGE>

              (g)    "COMMON SHARES" when used with reference to the Company 
shall mean the shares of Common Stock of the Company, $0.01 par value.  
Common Shares when used with reference to any Person other than the Company 
shall mean the capital stock (or equity interest) with the greatest voting 
power of such other Person or, if such other Person is a Subsidiary of 
another Person, the Person or Persons which ultimately control such 
first-mentioned Person.

              (h)    "COMMON STOCK EQUIVALENTS" shall have the meaning set 
forth in Section 11(a)(iii) hereof.

              (i)    "COMPANY" shall mean Coherent, Inc., a Delaware 
corporation, subject to the terms of Section 13(a)(iii)(C) hereof.

              (j)    "CURRENT PER SHARE MARKET PRICE" of any security (a 
"Security" for purposes of this definition), for all computations other than 
those made pursuant to Section 11(a)(iii) hereof, shall mean the average of 
the daily closing prices per share of such Security for the thirty (30) 
consecutive Trading Days immediately prior to such date, and for purposes of 
computations made pursuant to Section 11(a)(iii) hereof, the Current Per 
Share Market Price of any Security on any date shall be deemed to be the 
average of the daily closing prices per share of such Security for the ten 
(10) consecutive Trading Days immediately prior to such date; PROVIDED, 
HOWEVER, that in the event that the Current Per Share Market Price of the 
Security is determined during a period following the announcement by the 
issuer of such Security of (i) a dividend or distribution on such Security 
payable in shares of such Security or securities convertible into such shares 
or (ii) any subdivision, combination or reclassification of such Security, 
and prior to the expiration of the applicable thirty (30) Trading Day or ten 
(10) Trading Day period, after the ex-dividend date for such dividend or 
distribution, or the record date for such subdivision, combination or 
reclassification, then, and in each such case, the Current Per Share Market 
Price shall be appropriately adjusted to reflect the current market price per 
share equivalent of such Security.  The closing price for each day shall be 
the last sale price, regular way, or, in case no such sale takes place on 
such day, the average of the closing bid and asked prices, regular way, in 
either case as reported in the principal consolidated transaction reporting 
system with respect to securities listed or admitted to trading on the New 
York Stock Exchange or, if the Security is not listed or admitted to trading 
on the New York Stock Exchange, as reported in the principal consolidated 
transaction reporting system with respect to securities listed on the 
principal national securities exchange on which the Security is listed or 
admitted to trading or, if the Security is not listed or admitted to trading 
on any national securities exchange, the last sale price or, if such last 
sale price is not reported, the average of the high bid and low asked prices 
in the over-the-counter market, as reported by Nasdaq or such other system 
then in use, or, if on any such date the Security is not quoted by any such 
organization, the average of the closing bid and asked prices as furnished by 
a professional market maker making a market in the Security selected by the 
Board of Directors of the Company.  If on any such date the Security is not 
publicly held or so listed or traded, Current Per Share Market Price shall 
mean the fair value per share as determined in good faith by the Board of 
Directors of the Company, whose determination shall be described in a 
statement filed with the Rights Agent.

              (k)    "CURRENT VALUE" shall have the meaning set forth in 
Section 11(a)(iii) hereof.

                                     -4-
<PAGE>

              (l)    "DISTRIBUTION DATE" shall mean the earlier of (i) the 
Close of Business on the tenth day after the Shares Acquisition Date (or, if 
the tenth day after the Shares Acquisition Date occurs before the Record 
Date, the Close of Business on the Record Date) or (ii) the Close of Business 
on the tenth Business Day (or such later date as may be determined by action 
of the Company's Board of Directors) after the date that a tender or exchange 
offer by any Person (other than the Company, any Subsidiary of the Company, 
any employee benefit plan of the Company or of any Subsidiary of the Company, 
or any Person or entity organized, appointed or established by the Company 
for or pursuant to the terms of any such plan) is first published or sent or 
given within the meaning of Rule 14d-2(a) of the General Rules and 
Regulations under the Exchange Act, if, assuming the successful consummation 
thereof, such Person would be an Acquiring Person.

              (m)    "EQUIVALENT SHARES" shall mean Common Shares and any 
other class or series of capital stock of the Company which is entitled to 
the same rights, privileges and preferences as the Common Shares.

              (n)    "EXCHANGE ACT" shall mean the Securities Exchange Act of 
1934, as amended.

              (o)    "EXCHANGE RATIO" shall have the meaning set forth in 
Section 23(c), 24(a), 24(g) hereof.

              (p)    "EXERCISE PRICE" shall have the meaning set forth in 
Section 4(a) hereof.
 
              (q)    "EXPIRATION DATE" shall mean the earliest to occur of: 
(i) the Close of Business on the Final Expiration Date, (ii) the Redemption 
Date, or (iii) the time at which the Board of Directors orders the exchange 
of the Rights as provided in Section 24 hereof. 

              (r)    "FINAL EXPIRATION DATE" shall mean December 16, 2008.

              (s)    "INTERESTED PERSON" with respect to a Transaction shall 
mean any Person who (i) is or will become an Acquiring Person if the 
Transaction were to be consummated or an Affiliate or Associate of such a 
Person, and (ii) is, or directly or indirectly proposed, nominated or 
financially supported a director of the Company in office at the time of 
consideration of the Transaction in question who was elected by written 
consent of stockholders.

              (t)    "NASDAQ" shall mean the National Association of 
Securities Dealers, Inc. Automated Quotations System.

              (u)    "PERSON" shall mean any individual, firm, corporation or 
other entity, and shall include any successor (by merger or otherwise) of 
such entity.

              (v)    "POST-EVENT TRANSFEREE" shall have the meaning set forth 
in Section 7(e) hereof.

              (w)    "PRE-EVENT TRANSFEREE" shall have the meaning set forth 
in Section 7(e) hereof.

                                     -5-
<PAGE>

              (x)    "PRINCIPAL PARTY" shall have the meaning set forth in 
Section 13(b) hereof.

              (y)    "RECORD DATE" shall have the meaning set forth in the 
recitals at the beginning of this Agreement.

              (z)    "REDEMPTION DATE" shall have the meaning set forth in 
Section 23(a) hereof.

              (aa)   "REDEMPTION PRICE" shall have the meaning set forth in 
Section 23(a) hereof.

              (bb)   "RIGHTS AGENT" shall mean BankBoston, N.A. or its 
successor or replacement as provided in Sections 19 and 21 hereof.

              (cc)   "RIGHTS CERTIFICATE" shall mean a certificate 
substantially in the form attached hereto as Exhibit A.

              (dd)   "RIGHTS DIVIDEND DECLARATION DATE" shall have the 
meaning set forth in the recitals at the beginning of this Agreement.

              (ee)   "SECTION 11(a)(ii) TRIGGER DATE" shall have the meaning 
set forth in Section 11(a)(iii) hereof. 

              (ff)   "SECTION 13 EVENT" shall mean any event described in 
clause (i), (ii) or (iii) of Section 13(a) hereof.

              (gg)   "SECURITIES ACT" shall mean the Securities Act of 1933, 
as amended.

              (hh)   "SHARES ACQUISITION DATE" shall mean the first date of 
public announcement (which, for purposes of this definition, shall include, 
without limitation, a report filed pursuant to Section 13(d) under the 
Exchange Act) by the Company or an Acquiring Person that an Acquiring Person 
has become such; PROVIDED THAT, if such Person is determined not to have 
become an Acquiring Person pursuant to Section 1(a) hereof, then no Shares 
Acquisition Date shall be deemed to have occurred.

              (ii)   "SPREAD" shall have the meaning set forth in Section 
11(a)(iii) hereof.

              (jj)   "SUBSIDIARY" of any Person shall mean any corporation or 
other entity of which an amount of voting securities sufficient to elect a 
majority of the directors or Persons having similar authority of such 
corporation or other entity is beneficially owned, directly or indirectly, by 
such Person, or any corporation or other entity otherwise controlled by such 
Person.

              (kk)   "SUBSTITUTION PERIOD" shall have the meaning set forth 
in Section 11(a)(iii) hereof.

                                       -6-
<PAGE>

              (ll)   "SUMMARY OF RIGHTS" shall mean a summary of this 
Agreement substantially in the form attached hereto as Exhibit B.

              (mm)   "TOTAL EXERCISE PRICE" shall have the meaning set forth 
in Section 4(a) hereof.

              (nn)   "TRADING DAY" shall mean a day on which the principal 
national securities exchange on which a referenced security is listed or 
admitted to trading is open for the transaction of business or, if a 
referenced security is not listed or admitted to trading on any national 
securities exchange, a Business Day.  

              (oo)   "TRANSACTION" shall mean any merger, consolidation or 
sale of assets described in Section 13(a) hereof or any acquisition of Common 
Shares which would result in a Person becoming an Acquiring Person.

              (pp)   A "TRIGGERING EVENT" shall be deemed to have occurred 
upon any Person, becoming an Acquiring Person.

       Section 2.    APPOINTMENT OF RIGHTS AGENT.  The Company hereby 
appoints the Rights Agent to act as agent for the Company and the holders of 
the Rights (who, in accordance with Section 3 hereof, shall prior to the 
Distribution Date also be the holders of the Common Shares) in accordance 
with the terms and conditions hereof, and the Rights Agent hereby accepts 
such appointment.  The Company may from time to time appoint such co-Rights 
Agents as it may deem necessary or desirable, upon ten (10) days' prior 
written notice to the Rights Agent.  The Rights Agent shall have no duty to 
supervise and shall in no event be liable for, the acts or omissions of any 
such co-Rights Agent.

       Section 3.    ISSUANCE OF RIGHTS CERTIFICATES.

              (a)    Until the Distribution Date, (i) the Rights will be 
evidenced (subject to the provisions of Sections 3(b) and 3(c) hereof) by the 
certificates for Common Shares registered in the names of the holders thereof 
(which certificates shall also be deemed to be Rights Certificates) and not 
by separate Rights Certificates and (ii) the right to receive Rights 
Certificates will be transferable only in connection with the transfer of 
Common Shares. Until the earlier of the Distribution Date or the Expiration 
Date, the surrender for transfer of certificates for Common Shares shall also 
constitute the surrender for transfer of the Rights associated with the 
Common Shares represented thereby.  As soon as practicable after the 
Distribution Date, the Company will prepare and execute, the Rights Agent 
will countersign, and the Company will send or cause to be sent (and the 
Rights Agent will, if requested, send) by first-class, postage-prepaid mail, 
to each record holder of Common Shares as of the Close of Business on the 
Distribution Date, at the address of such holder shown on the records of the 
Company, a Rights Certificate evidencing one Right for each Common Share so 
held, subject to adjustment as provided herein.  In the event that an 
adjustment in the number of Rights per Common Share has been made pursuant to 
Section 11 hereof, then at the time of distribution of the Rights 
Certificates, the Company shall make the necessary and appropriate rounding 
adjustments (in accordance with

                                     -7-
<PAGE>

Section 14(a) hereof) so that Rights Certificates representing only whole 
numbers of Rights are distributed and cash is paid in lieu of any fractional 
Rights.  As of the Distribution Date, the Rights will be evidenced solely by 
such Rights Certificates and may be transferred by the transfer of the Rights 
Certificates as permitted hereby, separately and apart from any transfer of 
Common Shares, and the holders of such Rights Certificates as listed in the 
records of the Company or any transfer agent or registrar for the Rights 
shall be the record holders thereof.

              (b)    On the Record Date or as soon as practicable thereafter, 
the Company will send a copy of the Summary of Rights by first-class, 
postage-prepaid mail, to each record holder of Common Shares as of the Close 
of Business on the Record Date, at the address of such holder shown on the 
records of the Company's transfer agent and registrar.  With respect to 
certificates for Common Shares outstanding as of the Record Date, until the 
Distribution Date, the Rights will be evidenced by such certificates 
registered in the names of the holders thereof together with the Summary of 
Rights.  Until the Distribution Date (or, if earlier, the Expiration Date), 
the surrender for transfer of any certificate for Common Shares outstanding 
on the Record Date, with or without a copy of the Summary of Rights, shall 
also constitute the transfer of the Rights associated with the Common Shares 
represented thereby.

              (c)    Unless the Board of Directors by resolution adopted at 
or before the time of the issuance of any Common Shares specifies to the 
contrary, Rights shall be issued in respect of all Common Shares that are 
issued after the Record Date but prior to the earlier of the Distribution 
Date or the Expiration Date or, in certain circumstances provided in Section 
22 hereof, after the Distribution Date.  Certificates representing such 
Common Shares shall also be deemed to be certificates for Rights, and shall 
bear the following legend:

       THIS CERTIFICATE ALSO EVIDENCES AND ENTITLES THE HOLDER HEREOF TO
       CERTAIN RIGHTS AS SET FORTH IN A COMMON SHARES RIGHTS AGREEMENT
       BETWEEN COHERENT, INC. AND THE FIRST NATIONAL BANK OF BOSTON AS
       THE RIGHTS AGENT, DATED AS OF DECEMBER 16, 1988, (THE "RIGHTS
       AGREEMENT"), THE TERMS OF WHICH ARE HEREBY INCORPORATED HEREIN BY
       REFERENCE AND A COPY OF WHICH IS ON FILE AT THE PRINCIPAL
       EXECUTIVE OFFICES OF COHERENT, INC..  UNDER CERTAIN CIRCUMSTANCES,
       AS SET FORTH IN THE RIGHTS AGREEMENT, SUCH RIGHTS WILL BE
       EVIDENCED BY SEPARATE CERTIFICATES AND WILL NO LONGER BE EVIDENCED
       BY THIS CERTIFICATE.  COHERENT, INC. WILL MAIL TO THE HOLDER OF
       THIS CERTIFICATE A COPY OF THE RIGHTS AGREEMENT WITHOUT CHARGE
       AFTER RECEIPT OF A WRITTEN REQUEST THEREFOR.  UNDER CERTAIN
       CIRCUMSTANCES SET FORTH IN THE RIGHTS AGREEMENT, RIGHTS ISSUED TO,
       OR HELD BY, ANY PERSON WHO IS, WAS OR BECOMES AN ACQUIRING PERSON
       OR ANY AFFILIATE OR ASSOCIATE THEREOF (AS SUCH TERMS ARE DEFINED
       IN THE RIGHTS AGREEMENT), WHETHER CURRENTLY HELD BY OR ON BEHALF
       OF SUCH PERSON OR BY ANY SUBSEQUENT HOLDER, MAY BECOME NULL AND
       VOID.

                                     -8-
<PAGE>

With respect to such certificates containing the foregoing legend, until the 
earlier of (i) the Distribution Date or (ii) the Expiration Date, the Rights 
associated with the Common Shares represented by such certificates shall be 
evidenced by such certificates alone, and the surrender for transfer of any 
such certificate shall also constitute the transfer of the Rights associated 
with the Common Shares represented thereby.

              (d)    In the event that the Company purchases or acquires any 
Common Shares after the Record Date but prior to the Distribution Date, any 
Rights associated with such Common Shares shall be deemed canceled and 
retired so that the Company shall not be entitled to exercise any Rights 
associated with the Common Shares which are no longer outstanding.

       Section 4.    FORM OF RIGHTS CERTIFICATES.

              (a)    The Rights Certificates (and the forms of election to 
purchase Common Shares and of assignment to be printed on the reverse 
thereof) shall be substantially in the form of Exhibit A hereto and may have 
such marks of identification or designation and such legends, summaries or 
endorsements printed thereon as the Company may deem appropriate and as are 
not inconsistent with the provisions of this Agreement, or as may be required 
to comply with any applicable law or with any rule or regulation made 
pursuant thereto or with any rule or regulation of any stock exchange or 
automated quotation system, on which the Rights may from time to time be 
listed or included, or to conform to usage. Subject to the provisions of 
Section 11 and Section 22 hereof, the Rights Certificates, whenever 
distributed, shall be dated as of the Record Date (or in the case of Rights 
issued with respect to Common Shares issued by the Company after the Record 
Date, as of the date of issuance of such Common Shares) and on their face 
shall entitle the holders thereof to purchase such number of Common Shares as 
shall be set forth therein at the price set forth therein (such exercise 
price per Common Share being hereinafter referred to as the "EXERCISE PRICE" 
and the aggregate Exercise Price of all Common Shares issuable upon exercise 
of one Right being hereinafter referred to as the "TOTAL EXERCISE PRICE"), 
but the number and type of securities purchasable upon the exercise of each 
Right and the Exercise Price shall be subject to adjustment as provided 
herein.

              (b)    Any Rights Certificate issued pursuant to Section 3(a) 
or Section 22 hereof that represents Rights beneficially owned by:  (i) an 
Acquiring Person or any Associate or Affiliate of an Acquiring Person, (ii) a 
transferee of an Acquiring Person (or of any such Associate or Affiliate) who 
becomes a transferee after the Acquiring Person becomes such or (iii) a 
transferee of an Acquiring Person (or of any such Associate or Affiliate) who 
becomes a transferee prior to or concurrently with the Acquiring Person 
becoming such and receives such Rights pursuant to either (A) a transfer 
(whether or not for consideration) from the Acquiring Person to holders of 
equity interests in such Acquiring Person or to any Person with whom such 
Acquiring Person has any continuing agreement, arrangement or understanding 
regarding the transferred Rights or (B) a transfer which the Company's Board 
of Directors has determined is part of a plan, arrangement or understanding 
which has as a primary purpose or effect avoidance of Section 7(e) hereof, 
and any Rights Certificate issued pursuant to Section 6 or Section 11 hereof 
upon transfer, exchange, replacement or adjustment of any other Rights 
Certificate referred to in this sentence, shall contain (to the extent 
feasible) the following legend:

                                     -9-
<PAGE>

       THE RIGHTS REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE
       BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING
       PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON
       (AS SUCH TERMS ARE DEFINED IN THE RIGHTS AGREEMENT).  ACCORDINGLY,
       THIS RIGHTS CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY
       BECOME NULL AND VOID IN THE CIRCUMSTANCES SPECIFIED IN
       SECTION 7(e) OF THE RIGHTS AGREEMENT.

                                     -10-
<PAGE>

       Section 5.    COUNTERSIGNATURE AND REGISTRATION.

              (a)    The Rights Certificates shall be executed on behalf of 
the Company by its Chairman of the Board, its Chief Executive Officer, its 
Chief Financial Officer, its President or any Vice President, either manually 
or by facsimile signature, and by the Secretary or an Assistant Secretary of 
the Company, either manually or by facsimile signature, and shall have 
affixed thereto the Company's seal (if any) or a facsimile thereof.  The 
Rights Certificates shall be manually countersigned by the Rights Agent and 
shall not be valid for any purpose unless countersigned.  In case any officer 
of the Company who shall have signed any of the Rights Certificates shall 
cease to be such officer of the Company before countersignature by the Rights 
Agent and issuance and delivery by the Company, such Rights Certificates, 
nevertheless, may be countersigned by the Rights Agent and issued and 
delivered by the Company with the same force and effect as though the person 
who signed such Rights Certificates on behalf of the Company had not ceased 
to be such officer of the Company; and any Rights Certificate may be signed 
on behalf of the Company by any person who, at the actual date of the 
execution of such Rights Certificate, shall be a proper officer of the 
Company to sign such Rights Certificate, although at the date of the 
execution of this Rights Agreement any such person was not such an officer.

              (b)    Following the Distribution Date, the Rights Agent will 
keep or cause to be kept, at its office designated for such purposes, books 
for registration and transfer of the Rights Certificates issued hereunder.  
Such books shall show the names and addresses of the respective holders of 
the Rights Certificates, the number of Rights evidenced on its face by each 
of the Rights Certificates and the date of each of the Rights Certificates.

       Section 6.    TRANSFER, SPLIT UP, COMBINATION AND EXCHANGE OF RIGHTS 
CERTIFICATES; MUTILATED, DESTROYED, LOST OR STOLEN RIGHTS CERTIFICATES.

              (a)    Subject to the provisions of Sections 7(e), 14 and 24 
hereof, at any time after the Close of Business on the Distribution Date, and 
at or prior to the Close of Business on the Expiration Date, any Rights 
Certificate or Rights Certificates may be transferred, split up, combined or 
exchanged for another Rights Certificate or Rights Certificates, entitling 
the registered holder to purchase a like number of Common Shares (or, 
following a Triggering Event, other securities, cash or other assets, as the 
case may be) as the Rights Certificate or Rights Certificates surrendered 
then entitled such holder to purchase.  Any registered holder desiring to 
transfer, split up, combine or exchange any Rights Certificate or Rights 
Certificates shall make such request in writing delivered to the Rights 
Agent, and shall surrender the Rights Certificate or Rights Certificates to 
be transferred, split up, combined or exchanged at the principal office of 
the Rights Agent.  Neither the Rights Agent nor the Company shall be 
obligated to take any action whatsoever with respect to the transfer of any 
such surrendered Rights Certificate until the registered holder shall have 
completed and signed the certificate contained in the form of assignment on 
the reverse side of such Rights Certificate and shall have provided such 
additional evidence of the identity of the Beneficial Owner (or former 
Beneficial Owner) or Affiliates or Associates thereof as the Company shall 
reasonably request.  Thereupon the Rights Agent shall, subject to Sections 
7(e), 14 and 24 hereof, countersign and deliver to the person entitled 
thereto a Rights Certificate or Rights Certificates, as the case may be, as 
so requested.  The Company may require payment of a sum

                                     -11-
<PAGE>

sufficient to cover any tax or governmental charge that may be imposed in 
connection with any transfer, split up, combination or exchange of Rights 
Certificates.

              (b)    Upon receipt by the Company and the Rights Agent of 
evidence reasonably satisfactory to them of the loss, theft, destruction or 
mutilation of a Rights Certificate, and, in case of loss, theft or 
destruction, of indemnity or security reasonably satisfactory to them, and, 
at the Company's request, reimbursement to the Company and the Rights Agent 
of all reasonable expenses incidental thereto, and upon surrender to the 
Rights Agent and cancellation of the Rights Certificate if mutilated, the 
Company will make and deliver a new Rights Certificate of like tenor to the 
Rights Agent for delivery to the registered holder in lieu of the Rights 
Certificate so lost, stolen, destroyed or mutilated.

       Section 7.    EXERCISE OF RIGHTS; EXERCISE PRICE; EXPIRATION DATE OF 
RIGHTS.

              (a)    Subject to Sections 7(e), 23(b) and 24(b) hereof, the 
registered holder of any Rights Certificate may exercise the Rights evidenced 
thereby (except as otherwise provided herein) in whole or in part at any time 
after the Distribution Date and prior to the Close of Business on the 
Expiration Date by surrender of the Rights Certificate, with the form of 
election to purchase on the reverse side thereof duly executed, to the Rights 
Agent at the principal office of the Rights Agent, together with payment of 
the Exercise Price for each Common Share (or, following a Triggering Event, 
other securities, cash or other assets as the case may be) as to which the 
Rights are exercised.

              (b)    The Exercise Price for each Common Share issuable 
pursuant to the exercise of a Right shall be EIGHTY DOLLARS ($80.00) as of 
the date hereof, shall be subject to adjustment from time to time as provided 
in Sections 11 and 13 hereof and shall be payable in lawful money of the 
United States of America in accordance with paragraph (c) below.

              (c)    Upon receipt of a Rights Certificate representing 
exercisable Rights, with the form of election to purchase duly executed, 
accompanied by payment of the Exercise Price for the number of Common Shares 
(or, following a Triggering Event, other securities, cash or other assets as 
the case may be) to be purchased and an amount equal to any applicable 
transfer tax required to be paid by the holder of such Rights Certificate in 
accordance with Section 9(e) hereof, the Rights Agent shall, subject to 
Section 20(k) hereof, thereupon promptly (i) (A) requisition from any 
transfer agent of the Common Shares (or make available, if the Rights Agent 
is the transfer agent for the Common Shares) a certificate or certificates 
for the number of Common Shares (or, following a Triggering Event, other 
securities, cash or other assets as the case may be) to be purchased and the 
Company hereby irrevocably authorizes its transfer agent to comply with all 
such requests or (B) if the Company shall have elected to deposit the total 
number of Common Shares (or, following a Triggering Event, other securities, 
cash or other assets as the case may be) issuable upon exercise of the Rights 
hereunder with a depositary agent, requisition from the depositary agent 
depositary receipts representing such number of Common Shares (or, following 
a Triggering Event, other securities, cash or other assets as the case may 
be) as are to be purchased (in which case certificates for the Common Shares 
(or, following a Triggering Event, other securities, cash or other assets as 
the case may be) represented by such receipts shall be deposited by the 
transfer agent with the depositary agent) and the Company hereby directs the 
depositary agent

                                     -12-
<PAGE>

to comply with such request, (ii) when appropriate, requisition from the 
Company the amount of cash to be paid in lieu of issuance of fractional 
shares in accordance with Section 14 hereof, (iii) after receipt of such 
certificates or depositary receipts, cause the same to be delivered to or 
upon the order of the registered holder of such Rights Certificate, 
registered in such name or names as may be designated by such holder and (iv) 
when appropriate, after receipt thereof, deliver such cash to or upon the 
order of the registered holder of such Rights Certificate.  The payment of 
the Exercise Price (as such amount may be reduced (including to zero) 
pursuant to Section 11(a)(iii) hereof) and an amount equal to any applicable 
transfer tax required to be paid by the holder of such Rights Certificate in 
accordance with Section 9(e) hereof, may be made in cash or by certified bank 
check, cashier's check or bank draft payable to the order of the Company.  In 
the event that the Company is obligated to issue securities of the Company 
other than Common Shares, pay cash and/or distribute other property pursuant 
to Section 11(a) hereof, the Company will make all arrangements necessary so 
that such other securities, cash and/or other property are available for 
distribution by the Rights Agent, if and when appropriate.

              (d)    In case the registered holder of any Rights Certificate 
shall exercise less than all the Rights evidenced thereby, a new Rights 
Certificate evidencing Rights equivalent to the Rights remaining unexercised 
shall be issued by the Rights Agent to the registered holder of such Rights 
Certificate or to his or her duly authorized assigns, subject to the 
provisions of Section 14 hereof.

              (e)    Notwithstanding anything in this Agreement to the 
contrary, from and after the first occurrence of a Triggering Event, any 
Rights beneficially owned by (i) an Acquiring Person or an Associate or 
Affiliate of an Acquiring Person, (ii) a transferee of an Acquiring Person 
(or of any such Associate or Affiliate) who becomes a transferee after the 
Acquiring Person becomes such (a "POST-EVENT TRANSFEREE"), (iii) a transferee 
of an Acquiring Person (or of any such Associate or Affiliate) who becomes a 
transferee prior to or concurrently with the Acquiring Person becoming such 
and receives such Rights pursuant to either (A) a transfer (whether or not 
for consideration) from the Acquiring Person to holders of equity interests 
in such Acquiring Person or to any Person with whom the Acquiring Person has 
any continuing agreement, arrangement or understanding regarding the 
transferred Rights or (B) a transfer which the Company's Board of Directors 
has determined is part of a plan, arrangement or understanding which has as a 
primary purpose or effect the avoidance of this Section 7(e) (a "PRE-EVENT 
TRANSFEREE") or (iv) any subsequent transferee receiving transferred Rights 
from a Post-Event Transferee or a Pre-Event Transferee, either directly or 
through one or more intermediate transferees, shall become null and void 
without any further action and no holder of such Rights shall have any rights 
whatsoever with respect to such Rights, whether under any provision of this 
Agreement or otherwise.  The Company shall use all reasonable efforts to 
ensure that the provisions of this Section 7(e) and Section 4(b) hereof are 
complied with, but shall have no liability to any holder of Rights 
Certificates or to any other Person as a result of its failure to make any 
determinations with respect to an Acquiring Person or any of such Acquiring 
Person's Affiliates, Associates or transferees hereunder.

              (f)    Notwithstanding anything in this Agreement to the 
contrary, neither the Rights Agent nor the Company shall be obligated to 
undertake any action with respect to a registered holder upon the occurrence 
of any purported exercise as set forth in this Section 7 unless such 
registered holder shall, in addition to having complied with the requirements 
of Section 7(a), have (i) completed and

                                     -13-
<PAGE>

signed the certificate contained in the form of election to purchase set 
forth on the reverse side of the Rights Certificate surrendered for such 
exercise and (ii) provided such additional evidence of the identity of the 
Beneficial Owner (or former Beneficial Owner) or Affiliates or Associates 
thereof as the Company shall reasonably request.

       Section 8.    CANCELLATION AND DESTRUCTION OF RIGHTS CERTIFICATES.  
All Rights Certificates surrendered for the purpose of exercise, transfer, 
split up, combination or exchange shall, if surrendered to the Company or to 
any of its agents, be delivered to the Rights Agent for cancellation or in 
canceled form, or, if surrendered to the Rights Agent, shall be canceled by 
it, and no Rights Certificates shall be issued in lieu thereof except as 
expressly permitted by any of the provisions of this Agreement.  The Company 
shall deliver to the Rights Agent for cancellation and retirement, and the 
Rights Agent shall so cancel and retire, any Rights Certificate purchased or 
acquired by the Company otherwise than upon the exercise thereof.  The Rights 
Agent shall deliver all canceled Rights Certificates to the Company, or 
shall, at the written request of the Company, destroy  such canceled Rights 
Certificates, and in such case shall deliver a certificate of destruction 
thereof to the Company.

       Section 9.    RESERVATION AND AVAILABILITY OF COMMON SHARES.

              (a)    The Company covenants and agrees that it will use its 
best efforts to cause to be reserved and kept available out of and to the 
extent of its authorized and unissued Common Shares not reserved for another 
purpose (and, following the occurrence of a Triggering Event, out of its 
authorized and unissued Common Shares and/or other securities), the number of 
Common Shares (and, following the occurrence of the Triggering Event, Common 
Shares and/or other securities) that will be sufficient to permit the 
exercise in full of all outstanding Rights.

              (b)    If the Company has in the past or shall hereafter list 
any of its Common Shares on a national securities exchange or quotation 
system, then so long as the Common Shares (and, following the occurrence of a 
Triggering Event, Common Shares and/or other securities) issuable and 
deliverable upon exercise of the Rights may be listed on such exchange or 
quotation system, the Company shall use its best efforts to cause, from and 
after such time as the Rights become exercisable (but only to the extent that 
it is reasonably likely that the Rights will be exercised), all shares 
reserved for such issuance to be listed on such exchange upon official notice 
of issuance upon such exercise.

                                     -14-
<PAGE>

              (c)    The Company shall use its best efforts to (i) file, as 
soon as practicable following the earliest date after the first occurrence of 
a Triggering Event in which the consideration to be delivered by the Company 
upon exercise of the Rights is described in Section 11(a)(ii) or Section 
11(a)(iii) hereof, or as soon as is required by law following the 
Distribution Date, as the case may be, a registration statement under the 
Securities Act with respect to the securities purchasable upon exercise of 
the Rights on an appropriate form, (ii) cause such registration statement to 
become effective as soon as practicable after such filing and (iii) cause 
such registration statement to remain effective (with a prospectus at all 
times meeting the requirements of the Securities Act) until the earlier of 
(A) the date as of which the Rights are no longer exercisable for such 
securities and (B) the date of expiration of the Rights.  The Company may 
temporarily suspend, for a period not to exceed ninety (90) days after the 
date set forth in clause (i) of the first sentence of this Section 9(c), the 
exercisability of the Rights in order to prepare and file such registration 
statement and permit it to become effective.  Upon any such suspension, the 
Company shall issue a public announcement stating, and notify the Rights 
Agent, that the exercisability of the Rights has been temporarily suspended, 
as well as a public announcement and notification to the Rights Agent at such 
time as the suspension is no longer in effect.  The Company will also take 
such action as may be appropriate under, or to ensure compliance with, the 
securities or "blue sky" laws of the various states in connection with the 
exercisability of the Rights.  Notwithstanding any provision of this 
Agreement to the contrary, the Rights shall not be exercisable in any 
jurisdiction, unless the requisite qualification in such jurisdiction shall 
have been obtained, or an exemption therefrom shall be available, and until a 
registration statement has been declared effective.

              (d)    The Company covenants and agrees that it will take all 
such action as may be necessary to ensure that all Common Shares (or other 
securities of the Company) delivered upon exercise of Rights shall, at the 
time of delivery of the certificates for such securities (subject to payment 
of the Exercise Price), be duly and validly authorized and issued and fully 
paid and nonassessable shares.

              (e)    The Company further covenants and agrees that it will 
pay when due and payable any and all federal and state transfer taxes and 
charges which may be payable in respect of the original issuance or delivery 
of the Rights Certificates or of any Common Shares (or other securities of 
the Company) upon the exercise of Rights.  The Company shall not, however, be 
required to pay any transfer tax which may be payable in respect of any 
transfer or delivery of Rights Certificates to a person other than, or the 
issuance or delivery of certificates or depositary receipts for the Common 
Shares (or other securities of the Company) in a name other than that of, the 
registered holder of the Rights Certificate evidencing Rights surrendered for 
exercise or to issue or to deliver any certificates or depositary receipts 
for Common Shares (or other securities of the Company) upon the exercise of 
any Rights until any such tax shall have been paid (any such tax being 
payable by the holder of such Rights Certificate at the time of surrender) or 
until it has been established to the Company's satisfaction that no such tax 
is due.

       Section 10.   RECORD DATE.  Each Person in whose name any certificate 
for a number of Common Shares (or other securities of the Company) is issued 
upon the exercise of Rights shall for all purposes be deemed to have become 
the holder of record of the Common Shares (or other securities of the 
Company) represented thereby on, and such certificate shall be dated, the 
date upon which the

                                     -15-
<PAGE>

Rights Certificate evidencing such Rights was duly surrendered and payment of 
the Exercise Price with respect to which the Rights have been exercised (and 
any applicable transfer taxes) was made; PROVIDED, HOWEVER, that if the date 
of such surrender and payment is a date upon which the transfer books of the 
Company are closed, such Person shall be deemed to have become the record 
holder of such shares on, and such certificate shall be dated, the next 
succeeding Business Day on which the transfer books of the Company are open.  
Prior to the exercise of the Rights evidenced thereby, the holder of a Rights 
Certificate shall not be entitled to any rights of a holder of Common Shares 
(or other securities of the Company) for which the Rights shall be 
exercisable, including, without limitation, the right to vote, to receive 
dividends or other distributions or to exercise any preemptive rights, and 
shall not be entitled to receive any notice of any proceedings of the 
Company, except as provided herein.

       Section 11.   ADJUSTMENT OF EXERCISE PRICE, NUMBER OF SHARES OR NUMBER 
OF RIGHTS.  The Exercise Price, the number and kind of shares or other 
property covered by each Right and the number of Rights outstanding are 
subject to adjustment from time to time as provided in this Section 11.

              (a)   (i)    In the event the Company shall at any time 
after the date of this Agreement (A) declare a dividend on the Common Shares 
payable in Common Shares, (B) subdivide the outstanding Common Shares, (C) 
combine the outstanding Common Shares (by reverse stock split or otherwise) 
into a smaller number of Common Shares, or (D) issue any shares of its 
capital stock in a reclassification of the Common Shares (including any such 
reclassification in connection with a consolidation or merger in which the 
Company is the continuing or surviving corporation), then, in each such 
event, except as otherwise provided in this Section 11 and Section 7(e) 
hereof: (1) the Exercise Price in effect at the time of the record date for 
such dividend or of the effective date of such subdivision, combination or 
reclassification shall be adjusted so that the Exercise Price thereafter 
shall equal the result obtained by dividing the Exercise Price in effect 
immediately prior to such time by a fraction (the "ADJUSTMENT FRACTION"), the 
numerator of which shall be the total number of Common Shares (or shares of 
capital stock issued in such reclassification of the Common Shares) 
outstanding immediately following such time and the denominator of which 
shall be the total number of Common Shares outstanding immediately prior to 
such time; PROVIDED, HOWEVER, that in no event shall the consideration to be 
paid upon the exercise of one Right be less than the aggregate par value of 
the shares of capital stock of the Company issuable upon exercise of such 
Right; and (2) the number of Common Shares (or shares of such other capital 
stock) issuable upon the exercise of each Right shall equal the number of 
Common Shares (or shares of such other capital stock) as were issuable upon 
exercise of a Right immediately prior to the occurrence of the event 
described in clauses (A)-(D) of this Section 11(a)(i), multiplied by the 
Adjustment Fraction.  Each Common Share that shall become outstanding after 
an adjustment has been made pursuant to this Section 11(a)(i) shall have 
associated with it the number of Rights, exercisable at the Exercise Price 
and for the number of Common Shares (or shares of such other capital stock) 
as one Common Share has associated with it immediately following the 
adjustment made pursuant to this Section 11(a)(i).

                    (ii)   Subject to Section 24 of this Agreement, in
the event a Triggering Event shall have occurred, then promptly following such
Triggering Event each holder of a Right, except as provided in Section 7(e)
hereof, shall thereafter have the right to receive for each Right, upon exercise

                                     -16-
<PAGE>

thereof in accordance with the terms of this Agreement and payment of the 
Exercise Price in effect immediately prior to the occurrence of the 
Triggering Event, such number of Common Shares of the Company as shall equal 
the result obtained by multiplying the  Exercise Price in effect immediately 
prior to the occurrence of the Triggering Event by the number of Common 
Shares for which a Right was exercisable (or would have been exercisable if 
the Distribution Date had occurred) immediately prior to the first occurrence 
of a Triggering Event, and dividing that product by 50% of the Current Per 
Share Market Price for Common Shares on the date of occurrence of the 
Triggering Event; provided, however, that the Exercise Price and the number 
of Common Shares of the Company so receivable upon exercise of a Right shall 
be subject to further adjustment as appropriate in accordance with Section 
11(e) hereof to reflect any events occurring in respect of the Common Shares 
of the Company after the occurrence of the Triggering Event. 

                    (iii)  In lieu of issuing Common Shares in
accordance with Section 11(a)(ii) hereof, the Company may, if the Company's
Board of Directors determines that such action is necessary or appropriate and
not contrary to the interest of holders of Rights and, in the event that the
number of Common Shares which are authorized by the Company's Certificate of
Incorporation but not outstanding or reserved for issuance for purposes other
than upon exercise of the Rights are not sufficient to permit the exercise in
full of the Rights, or if any necessary regulatory approval for such issuance
has not been obtained by the Company, the Company shall:  (A) determine the
excess of (1) the value of the Common Shares issuable upon the exercise of a
Right (the "CURRENT VALUE") over (2) the Exercise Price (such excess, the
"SPREAD") and (B) with respect to each Right, make adequate provision to
substitute for such Common Shares, upon exercise of the Rights, (1) cash, (2) a
reduction in the Exercise Price, (3) other equity securities of the Company
(including, without limitation, shares or units of shares of any series of
preferred stock which the Company's Board of Directors has deemed to have the
same value as Common Shares (such shares or units of shares of preferred stock
are herein called "COMMON STOCK EQUIVALENTS")), except to the extent that the
Company has not obtained any necessary stockholder or regulatory approval for
such issuance, (4) debt securities of the Company, except to the extent that the
Company has not obtained any necessary stockholder or regulatory approval for
such issuance, (5) other assets or (6) any combination of the foregoing, having
an aggregate value equal to the Current Value, where such aggregate value has
been determined by the Company's Board of Directors based upon the advice of a
nationally recognized investment banking firm selected by the Company's Board of
Directors; PROVIDED, HOWEVER, if the Company shall not have made adequate
provision to deliver value pursuant to clause (B) above within thirty (30) days
following the later of (x) the first occurrence of a Triggering Event and
(y) the date on which the Company's right of redemption pursuant to
Section 23(a) expires (the later of (x) and (y) being referred to herein as the
"SECTION 11(a)(ii) TRIGGER DATE"), then the Company shall be obligated to
deliver, upon the surrender for exercise of a Right and without requiring
payment of the Exercise Price, Common Shares (to the extent available), except
to the extent that the Company has not obtained any necessary stockholder or
regulatory approval for such issuance, and then, if necessary, cash, which
shares and/or cash have an aggregate value equal to the Spread.  If the
Company's Board of Directors shall determine in good faith that it is likely
that sufficient additional Common Shares could be authorized for issuance upon
exercise in full of the Rights or that any necessary regulatory approval for
such issuance will be obtained, the thirty (30) day period set forth above may
be extended to the extent necessary, but not more than ninety (90) days after
the

                                     -17-
<PAGE>

Section 11(a)(ii) Trigger Date, in order that the Company may seek 
stockholder approval for the authorization of such additional shares or take 
action to obtain such regulatory approval (such period, as it may be 
extended, the "SUBSTITUTION PERIOD").  To the extent that the Company 
determines that some action need be taken pursuant to the first and/or second 
sentences of this Section 11(a)(iii), the Company (x) shall provide, subject 
to Section 7(e) hereof, that such action shall apply uniformly to all 
outstanding Rights and (y) may suspend the exercisability of the Rights until 
the expiration of the Substitution Period in order to seek any authorization 
of additional shares, to take any action to obtain any required regulatory 
approval and/or to decide the appropriate form of distribution to be made 
pursuant to such first sentence and to determine the value thereof.  In the 
event of any such suspension, the Company shall issue a public announcement 
stating that the exercisability of the Rights has been temporarily suspended, 
as well as a public announcement at such time as the suspension is no longer 
in effect.  For purposes of this Section 11(a)(iii), the value of the Common 
Shares shall be the Current Per Share Market Price of the Common Shares on 
the Section 11(a)(ii) Trigger Date and the value of any Common Stock 
Equivalent shall be deemed to have the same value as the Common Shares on 
such date.

              (b)    In case the Company shall, at any time after the date of 
this Agreement, fix a record date for the issuance of rights, options or 
warrants to all holders of Common Shares or of any class or series of 
Equivalent Shares entitling such holders (for a period expiring within 
forty-five (45) calendar days after such record date) to subscribe for or 
purchase Common Shares or Equivalent Shares or securities convertible into 
Common Shares or Equivalent Shares at a price per share (or having a 
conversion price per share, if a security convertible into Common Shares or 
Equivalent Shares) less than the then Current Per Share Market Price of the 
Common Shares or Equivalent Shares on such record date, then, in each such 
case, the Exercise Price to be in effect after such record date shall be 
determined by multiplying the Exercise Price in effect immediately prior to 
such record date by a fraction, the numerator of which shall be the number of 
Common Shares and Equivalent Shares (if any) outstanding on such record date, 
plus the number of Common Shares or Equivalent Shares, as the case may be, 
which the aggregate offering price of the total number of Common Shares or 
Equivalent Shares, as the case may be, to be offered or issued (and/or the 
aggregate initial conversion price of the convertible securities to be 
offered or issued) would purchase at such current market price, and the 
denominator of which shall be the number of Common Shares and Equivalent 
Shares (if any) outstanding on such record date, plus the number of 
additional Common Shares or Equivalent Shares, as the case may be, to be 
offered for subscription or purchase (or into which the convertible 
securities so to be offered are initially convertible); PROVIDED, HOWEVER, 
that in no event shall the consideration to be paid upon the exercise of one 
Right be less than the aggregate par value of the shares of capital stock of 
the Company issuable upon exercise of one Right.  In case such subscription 
price may be paid in a consideration part or all of which shall be in a form 
other than cash, the value of such consideration shall be as determined in 
good faith by the Company's Board of Directors, whose determination shall be 
described in a statement filed with the Rights Agent and shall be binding on 
the Rights Agent and the holders of the Rights.  Common Shares and Equivalent 
Shares owned by or held for the account of the Company shall not be deemed 
outstanding for the purpose of any such computation.  Such adjustment shall 
be made successively whenever such a record date is fixed, and in the event 
that such rights, options or warrants are not so issued, the Exercise Price 
shall be adjusted to be the Exercise Price which would then be in effect if 
such record date had not been fixed.

                                     -18-
<PAGE>

              (c)    In case the Company shall, at any time after the date of 
this Agreement, fix a record date for the making of a distribution to all 
holders of the Common Shares or of any class or series of Equivalent Shares 
(including any such distribution made in connection with a consolidation or 
merger in which the Company is the continuing or surviving corporation) of 
evidences of indebtedness or assets (other than a regular quarterly cash 
dividend, if any, or a dividend payable in Common Shares) or subscription 
rights, options or warrants (excluding those referred to in Section 11(b)), 
then, in each such case, the Exercise Price to be in effect after such record 
date shall be determined by multiplying the Exercise Price in effect 
immediately prior to such record date by a fraction, the numerator of which 
shall be the Current Per Share Market Price of a Common Share or an 
Equivalent Share on such record date, less the fair market value per Common 
Share or Equivalent Share (as determined in good faith by the Board of 
Directors of the Company, whose determination shall be described in a 
statement filed with the Rights Agent) of the portion of the cash, assets or 
evidences of indebtedness so to be distributed or of such subscription rights 
or warrants applicable to a Common Share or Equivalent Share, as the case may 
be, and the denominator of which shall be such Current Per Share Market Price 
of a Common Share or Equivalent Share on such record date; PROVIDED, HOWEVER, 
that in no event shall the consideration to be paid upon the exercise of one 
Right be less than the aggregate par value of the shares of capital stock of 
the Company issuable upon exercise of one Right.  Such adjustments shall be 
made successively whenever such a record date is fixed, and in the event that 
such distribution is not so made, the Exercise Price shall be adjusted to be 
the Exercise Price which would have been in effect if such record date had 
not been fixed.

              (d)    Anything herein to the contrary notwithstanding, no 
adjustment in the Exercise Price shall be required unless such adjustment 
would require an increase or decrease of at least 1% in the Exercise Price; 
PROVIDED, HOWEVER, that any adjustments which by reason of this Section 11(d) 
are not required to be made shall be carried forward and taken into account 
in any subsequent adjustment.  All calculations under this Section 11 shall 
be made to the nearest cent or to the nearest ten-thousandth of a Common 
Share or other share, as the case may be.  Notwithstanding the first sentence 
of this Section 11(d), any adjustment required by this Section 11 shall be 
made no later than the earlier of (i) three (3) years from the date of the 
transaction which requires such adjustment or (ii) the Expiration Date.

              (e)    If as a result of an adjustment made pursuant to Section 
11(a) or 13(a) hereof, the holder of any Right thereafter exercised shall 
become entitled to receive any shares of capital stock other than Common 
Shares, thereafter the number of such other shares so receivable upon 
exercise of any Right and, if required, the Exercise Price thereof, shall be 
subject to adjustment from time to time in a manner and on terms as nearly 
equivalent as practicable to the provisions with respect to the Common Shares 
contained in Sections 11(a), 11(b), 11(c), 11(d), 11(g), 11(h), 11(i), 11(j), 
11(k) and 11(l), and the provisions of Sections 7, 9, 10, 13 and 14 with 
respect to the Common Shares shall apply on like terms to any such other 
shares.

              (f)    All Rights originally issued by the Company subsequent to
any adjustment made to the Exercise Price hereunder shall evidence the right to
purchase, at the adjusted Exercise Price, the

                                     -19-
<PAGE>

number of Common Shares purchasable from time to time hereunder upon exercise 
of the Rights, all subject to further adjustment as provided herein.

              (g)    Unless the Company shall have exercised its election as 
provided in Section 11(h), upon each adjustment of the Exercise Price as a 
result of the calculations made in Section 11(b), each Right outstanding 
immediately prior to the making of such adjustment shall thereafter evidence 
the right to purchase, at the adjusted Exercise Price, that number of Common 
Shares (calculated to the nearest ten-thousandth of a share) obtained by (i) 
multiplying (x) the number of Common Shares covered by a Right immediately 
prior to this adjustment, by (y) the Exercise Price in effect immediately 
prior to such adjustment of the Exercise Price, and (ii) dividing the product 
so obtained by the Exercise Price in effect immediately after such adjustment 
of the Exercise Price.

              (h)    The Company may elect on or after the date of any 
adjustment of the Exercise Price as a result of the calculations made in 
Section 11(b) to adjust the number of Rights, in substitution for any 
adjustment in the number of Common Shares purchasable upon the exercise of a 
Right.  Each of the Rights outstanding after such adjustment of the number of 
Rights shall be exercisable for the number of Common Shares for which a Right 
was exercisable immediately prior to such adjustment.  Each Right held of 
record prior to such adjustment of the number of Rights shall become that 
number of Rights (calculated to the nearest ten-thousandth) obtained by 
dividing the Exercise Price in effect immediately prior to adjustment of the 
Exercise Price by the Exercise Price in effect immediately after adjustment 
of the Exercise Price. The Company shall make a public announcement of its 
election to adjust the number of Rights, indicating the record date for the 
adjustment, and, if known at the time, the amount of the adjustment to be 
made.  This record date may be the date on which the Exercise Price is 
adjusted or any day thereafter, but, if the Rights Certificates have been 
issued, shall be at least ten (10) days later than the date of the public 
announcement.  If Rights Certificates have been issued, upon each adjustment 
of the number of Rights pursuant to this Section 11(h), the Company shall, as 
promptly as practicable, cause to be distributed to holders of record of 
Rights Certificates on such record date Rights Certificates evidencing, 
subject to Section 14 hereof, the additional Rights to which such holders 
shall be entitled as a result of such adjustment, or, at the option of the 
Company, shall cause to be distributed to such holders of record in 
substitution and replacement for the Rights Certificates held by such holders 
prior to the date of adjustment, and upon surrender thereof, if required by 
the Company, new Rights Certificates evidencing all the Rights to which such 
holders shall be entitled after such adjustment.  Rights Certificates so to 
be distributed shall be issued, executed and countersigned in the manner 
provided for herein (and may bear, at the option of the Company, the adjusted 
Exercise Price) and shall be registered in the names of the holders of record 
of Rights Certificates on the record date specified in the public 
announcement.

              (i)    Irrespective of any adjustment or change in the Exercise 
Price or the number of Common Shares issuable upon the exercise of the 
Rights, the Rights Certificates theretofore and thereafter issued may 
continue to express the Exercise Price per Common Share and the number of 
Common Shares which were expressed in the initial Rights Certificates issued 
hereunder.

                                     -20-
<PAGE>

              (j)    Before taking any action that would cause an adjustment 
reducing the Exercise Price below the par or stated value, if any, of the 
number of Common Shares issuable upon exercise of the Rights, the Company 
shall take any corporate action which may, in the opinion of its counsel, be 
necessary in order that the Company may validly and legally issue as fully 
paid and nonassessable shares such number of Common Shares at such adjusted 
Exercise Price.

              (k)    In any case in which this Section 11 shall require that 
an adjustment in the Exercise Price be made effective as of a record date for 
a specified event, the Company may elect to defer until the occurrence of 
such event the issuing to the holder of any Right exercised after such record 
date of the number of Common Shares and other capital stock or securities of 
the Company, if any, issuable upon such exercise over and above the number of 
Common Shares and other capital stock or securities of the Company, if any, 
issuable upon such exercise on the basis of the Exercise Price in effect 
prior to such adjustment; PROVIDED, HOWEVER, that the Company shall deliver 
to such holder a due bill or other appropriate instrument evidencing such 
holder's right to receive such additional shares (fractional or otherwise) 
upon the occurrence of the event requiring such adjustment.

              (l)    Anything in this Section 11 to the contrary 
notwithstanding, prior to the Distribution Date, the Company shall be 
entitled to make such reductions in the Exercise Price, in addition to those 
adjustments expressly required by this Section 11, as and to the extent that 
it in its sole discretion shall determine to be advisable in order that any 
(i) consolidation or subdivision of the Common Shares or any Equivalent 
Shares, (ii) issuance wholly for cash of any Common Shares or Equivalent 
Shares at less than the current market price, (iii) issuance wholly for cash 
of Common Shares or Equivalent Shares or securities which by their terms are 
convertible into or exchangeable for Common Shares or Equivalent Shares, (iv) 
stock dividends or (v) issuance of rights, options or warrants referred to in 
this Section 11, hereafter made by the Company to holders of its Common 
Shares shall not be taxable to such stockholders.

              (m)    The Company covenants and agrees that, after the 
Distribution Date, it will not, except as permitted by Sections 23, 24 or 27 
hereof, take (or permit to be taken) any action if at the time such action is 
taken it is reasonably foreseeable that such action will diminish 
substantially or otherwise eliminate the benefits intended to be afforded by 
the Rights.

       Section 12.   CERTIFICATE OF ADJUSTED EXERCISE PRICE OR NUMBER OF 
SHARES. Whenever an adjustment is made as provided in Sections 11 and 13 
hereof, the Company shall promptly (a) prepare a certificate setting forth 
such adjustment and a brief statement of the facts accounting for such 
adjustment, (b) file with the Rights Agent and with each transfer agent for 
the Common Shares a copy of such certificate and (c) mail a brief summary 
thereof to each holder of a Rights Certificate in accordance with Section 26 
hereof.  Notwithstanding the foregoing sentence, the failure of the Company 
to make such certification or give such notice shall not affect the validity 
of such adjustment or the force or effect of the requirement for such 
adjustment.  The Rights Agent shall be fully protected in relying on any such 
certificate and on any adjustment contained therein and shall not be deemed 
to have knowledge of such adjustment unless and until it shall have received 
such certificate.

                                     -21-
<PAGE>

       Section 13.   CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR
EARNING POWER.

              (a)    In the event that, following a Triggering Event, directly
or indirectly:

                     (i)    the Company shall consolidate with, or merge
with and into, any other Person (other than a wholly-owned Subsidiary of the
Company in a transaction the principal purpose of which is to change the state
of incorporation of the Company and which complies with Section 11(m) hereof);

                     (ii)   any Person (other than a Subsidiary of the
Company in a transaction that complies with Section 11(m) hereof) shall
consolidate with the Company, or merge with and into the Company and the Company
shall be the continuing or surviving corporation of such consolidation or
merger; or

                     (iii)  the Company shall sell or otherwise transfer
(or one or more of its Subsidiaries shall sell or otherwise transfer), in one or
more transactions, assets or earning power aggregating 50% or more of the assets
or earning power of the Company and its Subsidiaries (taken as a whole) to any
other Person or Persons (other than the Company or one or more of its wholly
owned Subsidiaries in one or more transactions, each of which individually (and
together) complies with Section 11(m) hereof),

                             then, concurrent with and in each such case, 

                             (A)    each holder of a Right (except as 
provided in Section 7(e) hereof) shall thereafter have the right to receive, 
upon the exercise thereof at a price equal to the Total Exercise Price 
applicable immediately prior to the occurrence of the Section 13 Event in 
accordance with the terms of this Agreement, such number of validly 
authorized and issued, fully paid, nonassessable and freely tradeable Common 
Shares of the Principal Party (as hereinafter defined), free of any liens, 
encumbrances, rights of first refusal or other adverse claims, as shall be 
equal to the result obtained by dividing such Total Exercise Price by 50% of 
the Current Per Share Market Price of the Common Shares of such Principal 
Party on the date of consummation of such Section 13 Event, PROVIDED, 
HOWEVER, that the Exercise Price and the number of Common Shares of such 
Principal Party so receivable upon exercise of a Right shall be subject to 
further adjustment as appropriate in accordance with Section 11(e) hereof;

                             (B)    such Principal Party shall thereafter
be liable for, and shall assume, by virtue of such Section 13 Event, all the
obligations and duties of the Company pursuant to this Agreement;

                             (C)    the term "Company" shall thereafter be
deemed to refer to such Principal Party, it being specifically intended that the
provisions of Section 11 hereof shall apply only to such Principal Party
following the first occurrence of a Section 13 Event;

                                     -22-
<PAGE>

                             (D)    such Principal Party shall take such
steps (including, but not limited to, the reservation of a sufficient number of
its Common Shares) in connection with the consummation of any such transaction
as may be necessary to ensure that the provisions hereof shall thereafter be
applicable, as nearly as reasonably may be, in relation to its Common Shares
thereafter deliverable upon the exercise of the Rights; and

                             (E)    upon the subsequent occurrence of any
consolidation, merger, sale or transfer of assets or other extraordinary
transaction in respect of such Principal Party, each holder of a Right shall
thereupon be entitled to receive, upon exercise of a Right and payment of the
Total Exercise Price as provided in this Section 13(a), such cash, shares,
rights, warrants and other property which such holder would have been entitled
to receive had such holder, at the time of such transaction, owned the Common
Shares of the Principal Party receivable upon the exercise of such Right
pursuant to this Section 13(a), and such Principal Party shall take such steps
(including, but not limited to, reservation of shares of stock) as may be
necessary to permit the subsequent exercise of the Rights in accordance with the
terms hereof for such cash, shares, rights, warrants and other property.

                             (F)    For purposes hereof, the "earning
power" of the Company and its Subsidiaries shall be determined in good faith by
the Company's Board of Directors on the basis of the operating earnings of each
business operated by the Company and its Subsidiaries during the three fiscal
years preceding the date of such determination (or, in the case of any business
not operated by the Company or any Subsidiary during three full fiscal years
preceding such date, during the period such business was operated by the Company
or any Subsidiary).

              (b)    For purposes of this Agreement, the term "PRINCIPAL PARTY"
shall mean:

                     (i)    in the case of any transaction described in 
clause (i) or (ii) of Section 13(a) hereof: (A) the Person that is the issuer 
of the securities into which the Common Shares are converted in such merger 
or consolidation, or, if there is more than one such issuer, the issuer the 
Common Shares of which have the greatest aggregate market value of shares 
outstanding, or (B) if no securities are so issued, (x) the Person that is 
the other party to the merger, if such Person survives said merger, or, if 
there is more than one such Person, the Person the Common Shares of which 
have the greatest aggregate market value of shares outstanding or (y) if the 
Person that is the other party to the merger does not survive the merger, the 
Person that does survive the merger (including the Company if it survives) or 
(z) the Person resulting from the consolidation; and

                     (ii)   in the case of any transaction described in 
clause (iii) of Section 13(a) hereof, the Person that is the party receiving 
the greatest portion of the assets or earning power transferred pursuant to 
such transaction or transactions, or, if more than one Person that is a party 
to such transaction or transactions receives the same portion of the assets 
or earning power so transferred and each such portion would, were it not for 
the other equal portions, constitute the greatest portion of the assets or 
earning power so transferred, or if the Person receiving the greatest portion 
of the assets or earning power cannot be determined, whichever of such 
Persons is the issuer of Common Shares having the greatest aggregate market 
value of shares outstanding;

                                     -23-
<PAGE>

PROVIDED, HOWEVER, that in any such case described in the foregoing clause 
(b)(i) or (b)(ii), if the Common Shares of such Person are not at such time 
or have not been continuously over the preceding 12-month period registered 
under Section 12 of the Exchange Act, then (1) if such Person is a direct or 
indirect Subsidiary of another Person the Common Shares of which are and have 
been so registered, the term "Principal Party" shall refer to such other 
Person, or (2) if such Person is a Subsidiary, directly or indirectly, of 
more than one Person, the Common Shares of which are and have been so 
registered, the term "Principal Party" shall refer to whichever of such 
Persons is the issuer of Common Shares having the greatest aggregate market 
value of shares outstanding, or (3) if such Person is owned, directly or 
indirectly, by a joint venture formed by two or more Persons that are not 
owned, directly or indirectly by the same Person, the rules set forth in 
clauses (1) and (2) above shall apply to each of the owners having an 
interest in the venture as if the Person owned by the joint venture was a 
Subsidiary of both or all of such joint venturers, and the Principal Party in 
each such case shall bear the obligations set forth in this Section 13 in the 
same ratio as its interest in such Person bears to the total of such 
interests.

              (c)    The Company shall not consummate any Section 13 Event 
unless the Principal Party shall have a sufficient number of authorized 
Common Shares that have not been issued or reserved for issuance to permit 
the exercise in full of the Rights in accordance with this Section 13 and 
unless prior thereto the Company and such issuer shall have executed and 
delivered to the Rights Agent a supplemental agreement confirming that such 
Principal Party shall, upon consummation of such Section 13 Event, assume 
this Agreement in accordance with Sections 13(a) and 13(b) hereof, that all 
rights of first refusal or preemptive rights in respect of the issuance of 
Common Shares of such Principal Party upon exercise of outstanding Rights 
have been waived, that there are no rights, warrants, instruments or 
securities outstanding or any agreements or arrangements which, as a result 
of the consummation of such transaction, would eliminate or substantially 
diminish the benefits intended to be afforded by the Rights and that such 
transaction shall not result in a default by such Principal Party under this 
Agreement, and further providing that, as soon as practicable after the date 
of such Section 13 Event, such Principal Party will:

                     (i)    prepare and file a registration statement
under the Securities Act with respect to the Rights and the securities
purchasable upon exercise of the Rights on an appropriate form, use its best
efforts to cause such registration statement to become effective as soon as
practicable after such filing and use its best efforts to cause such
registration statement to remain effective (with a prospectus at all times
meeting the requirements of the Securities Act) until the Expiration Date, and
similarly comply with applicable state securities laws;

                     (ii)   use its best efforts to list (or continue the 
listing of) the Rights and the securities purchasable upon exercise of the 
Rights on a national securities exchange or to meet the eligibility 
requirements for quotation on Nasdaq and list (or continue the listing of) 
the Rights and the securities purchasable upon exercise of the Rights on 
Nasdaq; and

                                     -24-
<PAGE>

                     (iii)  deliver to holders of the Rights historical 
financial statements for such Principal Party which comply in all respects 
with the requirements for registration on Form 10 (or any successor form) 
under the Exchange Act.

       In the event that at any time after the occurrence of a Triggering 
Event some or all of the Rights shall not have been exercised at the time of 
a transaction described in this Section 13, the Rights which have not 
theretofore been exercised shall thereafter be exercisable in the manner 
described in Section 13(a) (without taking into account any prior adjustment 
required by Section 11(a)(ii)).

              (d)    In case the "Principal Party" for purposes of Section 
13(b) hereof has provision in any of its authorized securities or in its 
certificate of incorporation or by-laws or other instrument governing its 
corporate affairs, which provision would have the effect of (i) causing such 
Principal Party to issue (other than to holders of Rights pursuant to Section 
13 hereof), in connection with, or as a consequence of, the consummation of a 
Section 13 Event, Common Shares or Equivalent Shares of such Principal Party 
at less than the then Current Per Share Market Price thereof or securities 
exercisable for, or convertible into, Common Shares or Equivalent Shares of 
such Principal Party at less than such then Current Per Share Market Price, 
or (ii) providing for any special payment, tax or similar provision in 
connection with the issuance of the Common Shares of such Principal Party 
pursuant to the provisions of Section 13 hereof, then, in such event, the 
Company hereby agrees with each holder of Rights that it shall not consummate 
any such transaction unless prior thereto the Company and such Principal 
Party shall have executed and delivered to the Rights Agent a supplemental 
agreement providing that the provision in question of such Principal Party 
shall have been canceled, waived or amended, or that the authorized 
securities shall be redeemed, so that the applicable provision will have no 
effect in connection with or as a consequence of, the consummation of the 
proposed transaction.

              (e)    The Company covenants and agrees that it shall not, at 
any time after the Distribution Date, effect or permit to occur any Section 
13 Event, if (i) at the time or immediately after such Section 13 Event there 
are any rights, warrants or other instruments or securities outstanding or 
agreements in effect which would substantially diminish or otherwise 
eliminate the benefits intended to be afforded by the Rights, (ii) prior to, 
simultaneously with or immediately after such Section 13 Event, the 
stockholders of the Person who constitutes, or would constitute, the 
"Principal Party" for purposes of Section 13(b) hereof shall have received a 
distribution of Rights previously owned by such Person or any of its 
Affiliates or Associates or (iii) the form or nature of organization of the 
Principal Party would preclude or limit the exercisability of the Rights. 

              (f)    The provisions of this Section 13 shall similarly apply 
to successive mergers or consolidations or sales or other transfers.

       Section 14.   FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

              (a)    The Company shall not be required to issue fractions of
Rights or to distribute Rights Certificates which evidence fractional Rights. 
In lieu of such fractional Rights, there shall be paid to the registered holders
of the Rights Certificates with regard to which such fractional Rights

                                     -25-
<PAGE>

would otherwise be issuable, an amount in cash equal to the same fraction of 
the current market value of a whole Right.  For the purposes of this Section 
14(a), the current market value of a whole Right shall be the closing price 
of the Rights for the Trading Day immediately prior to the date on which such 
fractional Rights would have been otherwise issuable, as determined pursuant 
to the second sentence of Section 1(j) hereof.

              (b)    The Company shall not be required to issue fractions of 
Common Shares or to distribute certificates which evidence fractional Common 
Shares upon the exercise or exchange of Rights.  In lieu of such fractional 
Common Shares, the Company shall pay to the registered holders of Rights 
Certificates at the time such Rights are exercised as herein provided an 
amount in cash equal to the same fraction of the current market value of a 
Common Share.  For purposes of this Section 14(b), the current market value 
of a Common Share shall be the closing price of a Common Share (as determined 
pursuant to the second sentence of Section 1(j) hereof) for the Trading Day 
immediately prior to the date of such exercise. 

              (c)    The holder of a Right by the acceptance of the Right 
expressly waives his or her right to receive any fractional Rights or any 
fractional shares upon exercise of a Right.

       Section 15.   RIGHTS OF ACTION.  All rights of action in respect of 
this Agreement, excepting the rights of action given to the Rights Agent 
under Section 18 hereof, are vested in the respective registered holders of 
the Rights Certificates (and, prior to the Distribution Date, the registered 
holders of the Common Shares); and any registered holder of any Rights 
Certificate (or, prior to the Distribution Date, of the Common Shares), 
without the consent of the Rights Agent or of the holder of any other Rights 
Certificate (or, prior to the Distribution Date, of the Common Shares), may, 
in his or her own behalf and for his or her own benefit, enforce, and may 
institute and maintain any suit, action or proceeding against the Company to 
enforce, or otherwise act in respect of, his or her right to exercise the 
Rights evidenced by such Rights Certificate in the manner provided in such 
Rights Certificate and in this Agreement.  Without limiting the foregoing or 
any remedies available to the holders of Rights, it is specifically 
acknowledged that the holders of Rights would not have an adequate remedy at 
law for any breach of this Agreement and will be entitled to specific 
performance of the obligations under, and injunctive relief against actual or 
threatened violations of, the obligations of any Person subject to this 
Agreement.

       Section 16.    AGREEMENT OF RIGHTS HOLDERS.  Every holder of a Right, 
by accepting the same, consents and agrees with the Company and the Rights 
Agent and with every other holder of a Right that:

              (a)    prior to the Distribution Date, the Rights will be 
transferable only in connection with the transfer of the Common Shares;

              (b)    after the Distribution Date, the Rights Certificates are 
transferable only on the registry books of the Rights Agent if surrendered at 
the principal office of the Rights Agent, duly endorsed or accompanied by a 
proper instrument of transfer and with the appropriate forms and certificates 
fully executed; and

                                     -26-
<PAGE>

              (c)    subject to Sections 6(a) and 7(f) hereof, the Company 
and the Rights Agent may deem and treat the person in whose name the Rights 
Certificate (or, prior to the Distribution Date, the associated Common Shares 
certificate) is registered as the absolute owner thereof and of the Rights 
evidenced thereby (notwithstanding any notations of ownership or writing on 
the Rights Certificates or the associated Common Shares certificate made by 
anyone other than the Company or the Rights Agent) for all purposes 
whatsoever, and neither the Company nor the Rights Agent shall be affected by 
any notice to the contrary.

       Section 17.   RIGHTS CERTIFICATE HOLDER NOT DEEMED A STOCKHOLDER.  No 
holder, as such, of any Rights Certificate shall be entitled to vote, receive 
dividends or be deemed for any purpose to be the holder of the Common Shares 
or any other securities of the Company which may at any time be issuable on 
the exercise of the Rights represented thereby, nor shall anything contained 
herein or in any Rights Certificate be construed to confer upon the holder of 
any Rights Certificate, as such, any of the rights of a stockholder of the 
Company or any right to vote for the election of directors or upon any matter 
submitted to stockholders at any meeting thereof, or to give or withhold 
consent to any corporate action, or to receive notice of meetings or other 
actions affecting stockholders (except as provided in Section 25 hereof), or 
to receive dividends or subscription rights, or otherwise, until the Right or 
Rights evidenced by such Rights Certificate shall have been exercised in 
accordance with the provisions hereof.

       Section 18.   CONCERNING THE RIGHTS AGENT.

              (a)    The Company agrees to pay to the Rights Agent reasonable 
compensation for all services rendered by it hereunder and, from time to 
time, on demand of the Rights Agent, its reasonable expenses and counsel fees 
and other disbursements incurred in the administration and execution of this 
Agreement and the exercise and performance of its duties hereunder.  The 
Company also agrees to indemnify the Rights Agent for, and to hold it 
harmless against, any loss, liability or expense, incurred without gross 
negligence, bad faith or willful misconduct on the part of the Rights Agent, 
for anything done or omitted by the Rights Agent in connection with the 
acceptance and administration of this Agreement, including the costs and 
expenses of defending against any claim of liability in the premises.  In no 
event will the Rights Agent be liable for special, indirect, incidental or 
consequential loss or damage of any kind whatsoever, even if the Rights Agent 
has been advised of the possibility of such loss or damage. 

              (b)    The Rights Agent shall be protected and shall incur no 
liability for, or in respect of any action taken, suffered or omitted by it 
in connection with, its administration of this Agreement in reliance upon any 
Rights Certificate or certificate for the Common Shares or for other 
securities of the Company, instrument of assignment or transfer, power of 
attorney, endorsement, affidavit, letter, notice, direction, consent, 
certificate, statement or other paper or document reasonably believed by it 
to be genuine and to be signed, executed and, where necessary, verified or 
acknowledged, by the proper Person or Persons, or otherwise upon the advice 
of counsel as set forth in Section 20 hereof.

       Section 19.   MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT.

                                     -27-
<PAGE>

              (a)    Any corporation into which the Rights Agent or any 
successor Rights Agent may be merged or with which it may be consolidated, or 
any corporation resulting from any merger or consolidation to which the 
Rights Agent or any successor Rights Agent shall be a party, or any 
corporation succeeding to the corporate trust business of the Rights Agent or 
any successor Rights Agent, shall be the successor to the Rights Agent under 
this Agreement without the execution or filing of any paper or any further 
act on the part of any of the parties hereto; PROVIDED, HOWEVER, that such 
corporation would be eligible for appointment as a successor Rights Agent 
under the provisions of Section 21 hereof.  In case at the time such 
successor Rights Agent shall succeed to the agency created by this Agreement, 
any of the Rights Certificates shall have been countersigned but not 
delivered, any such successor Rights Agent may adopt the countersignature of 
the predecessor Rights Agent and deliver such Rights Certificates so 
countersigned; and in case at that time any of the Rights Certificates shall 
not have been countersigned, any successor Rights Agent may countersign such 
Rights Certificates either in the name of the predecessor Rights Agent or in 
the name of the successor Rights Agent; and in all such cases such Rights 
Certificates shall have the full force provided in the Rights Certificates 
and in this Agreement.

              (b)    In case at any time the name of the Rights Agent shall 
be changed and at such time any of the Rights Certificates shall have been 
countersigned but not delivered, the Rights Agent may adopt the 
countersignature under its prior name and deliver Rights Certificates so 
countersigned; and in case at that time any of the Rights Certificates shall 
not have been countersigned, the Rights Agent may countersign such Rights 
Certificates either in its prior name or in its changed name; and in all such 
cases such Rights Certificates shall have the full force provided in the 
Rights Certificates and in this Agreement.

       Section 20.   DUTIES OF RIGHTS AGENT.  The Rights Agent undertakes the 
duties and obligations imposed by this Agreement upon the following terms and 
conditions, by all of which the Company and the holders of Rights 
Certificates, by their acceptance thereof, shall be bound:

              (a)    The Rights Agent may consult with legal counsel (who may 
be legal counsel for the Company), and the written advice or opinion of such 
counsel shall be full and complete authorization and protection to the Rights 
Agent as to any action taken or omitted by it in good faith and in accordance 
with such written advice or opinion.

              (b)    Whenever in the performance of its duties under this 
Agreement the Rights Agent shall deem it necessary or desirable that any fact 
or matter (including, without limitation, the identity of any Acquiring 
Person and the determination of Current Per Share Market Price) be proved or 
established by the Company prior to taking or suffering any action hereunder, 
such fact or matter (unless other evidence in respect thereof be herein 
specifically prescribed) may be deemed to be conclusively proved and 
established by a certificate signed by any one of the Chairman of the Board, 
the Chief Executive Officer, the President, any Vice President, the Chief 
Financial Officer, the Secretary or any Assistant Secretary of the Company 
and delivered to the Rights Agent; and such certificate shall be full 
authorization to the Rights Agent for any action taken or suffered in good 
faith by it under the provisions of this Agreement in reliance upon such 
certificate.

                                     -28-
<PAGE>

              (c)    The Rights Agent shall be liable hereunder to the 
Company and any other Person only for its own gross negligence, bad faith or 
willful misconduct.

              (d)    The Rights Agent shall not be liable for or by reason of 
any of the statements of fact or recitals contained in this Agreement or in 
the Rights Certificates (except its countersignature thereof) or be required 
to verify the same, but all such statements and recitals are and shall be 
deemed to have been made by the Company only.

              (e)    The Rights Agent shall not be under any responsibility 
in respect of the validity of this Agreement or the execution and delivery 
hereof (except the due execution hereof by the Rights Agent) or in respect of 
the validity or execution of any Rights Certificate (except its 
countersignature thereof); nor shall it be responsible for any breach by the 
Company of any covenant or condition contained in this Agreement or in any 
Rights Certificate; nor shall it be responsible for any change in the 
exercisability of the Rights or any adjustment in the terms of the Rights 
(including the manner, method or amount thereof) provided for in Sections 3, 
11, 13, 23 or 24, or the ascertaining of the existence of facts that would 
require any such change or adjustment (except with respect to the exercise of 
Rights evidenced by Rights Certificates after receipt by the Rights Agent of 
a certificate furnished pursuant to Section 12 describing such change or 
adjustment); nor shall it by any act hereunder be deemed to make any 
representation or warranty as to the authorization or reservation of any 
Common Shares to be issued pursuant to this Agreement or any Rights 
Certificate or as to whether any Common Shares will, when issued, be validly 
authorized and issued, fully paid and nonassessable.

              (f)    The Company agrees that it will perform, execute, 
acknowledge and deliver or cause to be performed, executed, acknowledged and 
delivered all such further and other acts, instruments and assurances as may 
reasonably be required by the Rights Agent for the carrying out or performing 
by the Rights Agent of the provisions of this Agreement.

              (g)    The Rights Agent is hereby authorized and directed to 
accept instructions with respect to the performance of its duties hereunder 
from any one of the Chairman of the Board, the Chief Executive Officer, the 
President, any Vice President, the Chief Financial Officer, the Secretary or 
any Assistant Secretary of the Company, and to apply to such officers for 
advice or instructions in connection with its duties, and it shall not be 
liable for any action taken or suffered by it in good faith in accordance 
with instructions of any such officer or for any delay in acting while 
waiting for those instructions.  Any application by the Rights Agent for 
written instructions from the Company may, at the option of the Rights Agent, 
set forth in writing any action proposed to be taken or omitted by the Rights 
Agent under this Rights Agreement and the date on and/or after which such 
action shall be taken or such omission shall be effective.  The Rights Agent 
shall not be liable for any action taken by, or omission of, the Rights Agent 
in accordance with a proposal included in any such application on or after 
the date specified in such application (which date shall not be less than 
five (5) Business Days after the date any officer of the Company actually 
receives such application, unless any such officer shall have consented in 
writing to an earlier date) unless, prior to taking any such action (or the 
effective date in the case of an omission), the Rights Agent shall have 
received written instructions in response to such application specifying the 
action to be taken or omitted.

                                     -29-
<PAGE>

              (h)    The Rights Agent and any stockholder, director, officer 
or employee of the Rights Agent may buy, sell or deal in any of the Rights or 
other securities of the Company or become pecuniarily interested in any 
transaction in which the Company may be interested, or contract with or lend 
money to the Company or otherwise act as fully and freely as though it were 
not Rights Agent under this Agreement.  Nothing herein shall preclude the 
Rights Agent from acting in any other capacity for the Company or for any 
other legal entity.

              (i)    The Rights Agent may execute and exercise any of the 
rights or powers hereby vested in it or perform any duty hereunder either 
itself or by or through its attorneys or agents, and the Rights Agent shall 
not be answerable or accountable for any act, default, neglect or misconduct 
of any such attorneys or agents or for any loss to the Company resulting from 
any such act, default, neglect or misconduct, provided reasonable care was 
exercised in the selection and continued employment thereof.

              (j)    No provision of this Agreement shall require the Rights 
Agent to expend or risk its own funds or otherwise incur any financial 
liability in the performance of any of its duties hereunder or in the 
exercise of its rights if there shall be reasonable grounds for believing 
that repayment of such funds or adequate indemnification against such risk or 
liability is not reasonably assured to it.

              (k)    If, with respect to any Rights Certificate surrendered 
to the Rights Agent for exercise or transfer, the certificate attached to the 
form of assignment or form of election to purchase, as the case may be, has 
either not been completed or indicates an affirmative response to clause 1 
and/or 2 thereof, the Rights Agent shall not take any further action with 
respect to such requested exercise or transfer without first consulting with 
the Company.

       Section 21.   CHANGE OF RIGHTS AGENT.  The Rights Agent or any 
successor Rights Agent may resign and be discharged from its duties under 
this Agreement upon thirty (30) days' notice in writing mailed to the Company 
and to each transfer agent of the Common Shares by registered or certified 
mail, and to the holders of the Rights Certificates by first-class mail.  The 
Company may remove the Rights Agent or any successor Rights Agent upon thirty 
(30) days' notice in writing, mailed to the Rights Agent or successor Rights 
Agent, as the case may be, and to each transfer agent of the Common Shares by 
registered or certified mail, and to the holders of the Rights Certificates 
by first-class mail.  If the Rights Agent shall resign or be removed or shall 
otherwise become incapable of acting, the Company shall appoint a successor 
to the Rights Agent.  If the Company shall fail to make such appointment 
within a period of thirty (30) days after giving notice of such removal or 
after it has been notified in writing of such resignation or incapacity by 
the resigning or incapacitated Rights Agent or by the holder of a Rights 
Certificate (who shall, with such notice, submit his or her Rights 
Certificate for inspection by the Company), then the registered holder of any 
Rights Certificate may apply to any court of competent jurisdiction for the 
appointment of a new Rights Agent.  Any successor Rights Agent, whether 
appointed by the Company or by such a court, shall be a corporation organized 
and doing business under the laws of the United States or of any state of the 
United States, in good standing, which is authorized under such laws to 
exercise corporate trust or stockholder services powers and is subject to 
supervision or examination by federal or state authority and which has at the 
time of its appointment as Rights Agent

                                     -30-
<PAGE>

a combined capital and surplus of at least $100 million.  After appointment, 
the successor Rights Agent shall be vested with the same powers, rights, 
duties and responsibilities as if it had been originally named as Rights 
Agent without further act or deed; but the predecessor Rights Agent shall 
deliver and transfer to the successor Rights Agent any property at the time 
held by it hereunder, and execute and deliver any further assurance, 
conveyance, act or deed necessary for the purpose.  Not later than the 
effective date of any such appointment, the Company shall file notice thereof 
in writing with the predecessor Rights Agent and each transfer agent of the 
Common Shares, and mail a notice thereof in writing to the registered holders 
of the Rights Certificates.  Failure to give any notice provided for in this 
Section 21, however, or any defect therein, shall not affect the legality or 
validity of the resignation or removal of the Rights Agent or the appointment 
of the successor Rights Agent, as the case may be.

       Section 22.   ISSUANCE OF NEW RIGHTS CERTIFICATES.  Notwithstanding 
any of the provisions of this Agreement or of the Rights to the contrary, the 
Company may, at its option, issue new Rights Certificates evidencing Rights 
in such form as may be approved by its Board of Directors to reflect any 
adjustment or change in the Exercise Price and the number or kind or class of 
shares or other securities or property purchasable under the Rights 
Certificates made in accordance with the provisions of this Agreement.  In 
addition, in connection with the issuance or sale of Common Shares following 
the Distribution Date and prior to the redemption or expiration of the 
Rights, the Company (a) shall, with respect to Common Shares so issued or 
sold pursuant to the exercise of stock options or under any employee plan or 
arrangement or upon the exercise, conversion or exchange of other securities 
of the Company outstanding at the date hereof or upon the exercise, 
conversion or exchange of securities hereinafter issued by the Company and 
(b) may, in any other case, if deemed necessary or appropriate by the Board 
of Directors of the Company, issue Rights Certificates representing the 
appropriate number of Rights in connection with such issuance or sale; 
PROVIDED, HOWEVER, that (i) no such Rights Certificate shall be issued and 
this sentence shall be null and void AB INITIO if, and to the extent that, 
such issuance or this sentence would create a significant risk of or result 
in material adverse tax consequences to the Company or the Person to whom 
such Rights Certificate would be issued or would create a significant risk of 
or result in such options' or employee plans' or arrangements' failing to 
qualify for otherwise available special tax treatment and (ii) no such Rights 
Certificate shall be issued if, and to the extent that, appropriate 
adjustment shall otherwise have been made in lieu of the issuance thereof.

       Section 23.   REDEMPTION.

              (a)    The Company may, at its option and with the approval of 
the Board of Directors, at any time prior to the earlier of (i) the 
Distribution Date or (ii) the Close of Business on the Final Expiration Date, 
redeem all but not less than all the then outstanding Rights at a redemption 
price of $0.001 per Right, appropriately adjusted to reflect any stock split, 
stock dividend or similar transaction occurring after the date hereof (such 
redemption price being herein referred to as the "REDEMPTION PRICE") and the 
Company may, at its option, pay the Redemption Price either in Common Shares 
(based on the Current Per Share Market Price thereof at the time of 
redemption) or cash.  Such redemption of the Rights by the Company may be 
made effective at such time, on such basis and with such conditions as the 
Board of Directors in its sole discretion may establish.  The date on which 
the Board of Directors elects to make the redemption effective shall be 
referred to as the "REDEMPTION DATE."

                                     -31-
<PAGE>

              (b)    Immediately upon the action of the Board of Directors of 
the Company ordering the redemption of the Rights, evidence of which shall 
have been filed with the Rights Agent, and without any further action and 
without any notice, the right to exercise the Rights will terminate and the 
only right thereafter of the holders of Rights shall be to receive the 
Redemption Price. The Company shall promptly give public notice of any such 
redemption; PROVIDED, HOWEVER, that the failure to give or any defect in, any 
such notice shall not affect the validity of such redemption.  Within ten 
(10) days after the action of the Board of Directors ordering the redemption 
of the Rights, the Company shall give notice of such redemption to the Rights 
Agent and the holders of the then outstanding Rights by mailing such notice 
to all such holders at their last addresses as they appear upon the registry 
books of the Rights Agent or, prior to the Distribution Date, on the registry 
books of the transfer agent for the Common Shares.  Any notice which is 
mailed in the manner herein provided shall be deemed given, whether or not 
the holder receives the notice.  Each such notice of redemption will state 
the method by which the payment of the Redemption Price will be made.  
Neither the Company nor any of its Affiliates or Associates may redeem, 
acquire or purchase for value any Rights at any time in any manner other than 
that specifically set forth in this Section 23 or in Section 24 hereof, and 
other than in connection with the purchase of Common Shares prior to the 
Distribution Date.

              (c)    Notwithstanding the provisions of Section 23(a), in the 
event that a majority of the Board of Directors of the Company is elected by 
stockholder action by written consent, then until the 180th day following the 
effectiveness of such election the Rights shall not be redeemed if such 
redemption is reasonably likely to have the purpose or effect of facilitating 
a Transaction with an Interested Person.

       Section 24.   EXCHANGE.

              (a)    Subject to applicable laws, rules and regulations, and 
subject to subsection 24(c) below, the Company may, at its option, by action 
of the Board of Directors, at any time after the occurrence of a Triggering 
Event, exchange all or part of the then outstanding and exercisable Rights 
(which shall not include Rights that have become void pursuant to the 
provisions of Section 7(e) hereof) for Common Shares at an exchange ratio of 
one Common Share per Right, appropriately adjusted to reflect any stock 
split, stock dividend or similar transaction occurring after the date hereof 
(such exchange ratio being hereinafter referred to as the "EXCHANGE RATIO").  
Notwithstanding the foregoing, the Board of Directors shall not be empowered 
to effect such exchange at any time after any Person (other than the Company, 
any Subsidiary of the Company, any employee benefit plan of the Company or 
any such Subsidiary, or any entity holding Common Shares for or pursuant to 
the terms of any such plan), together with all Affiliates and Associates of 
such Person, becomes the Beneficial Owner of 50% or more of the Common Shares 
then outstanding.

              (b)    Immediately upon the action of the Board of Directors 
ordering the exchange of any Rights pursuant to subsection 23(c), 24(a), 
24(g) and without any further action and without any notice, the right to 
exercise such Rights shall terminate and the only right thereafter of a 
holder of such Rights shall be to receive that number of Common Shares equal 
to the number of such Rights held by

                                     -32-
<PAGE>

such holder multiplied by the Exchange Ratio.  The Company shall give public 
notice of any such exchange; PROVIDED, HOWEVER, that the failure to give, or 
any defect in, such notice shall not affect the validity of such exchange.  
The Company shall mail a notice of any such exchange to all of the holders of 
such Rights at their last addresses as they appear upon the registry books of 
the Rights Agent.  Any notice which is mailed in the manner herein provided 
shall be deemed given, whether or not the holder receives the notice.  Each 
such notice of exchange will state the method by which the exchange of the 
Common Shares for Rights will be effected and, in the event of any partial 
exchange, the number of Rights which will be exchanged.  Any partial exchange 
shall be effected pro rata based on the number of Rights (other than Rights 
which have become void pursuant to the provisions of Section 7(e) hereof) 
held by each holder of Rights.

              (c)    In the event that there shall not be sufficient Common 
Shares issued but not outstanding or authorized but unissued to permit any 
exchange of Rights as contemplated in accordance with Section 23(c), 
24(a),24(g), the Company shall either take such action as may be necessary to 
authorize additional Common Shares for issuance upon exchange of the Rights 
or alternatively, at the option of a majority of the Board of Directors, with 
respect to each Right (i) pay cash in an amount equal to the Current Value 
(as hereinafter defined), in lieu of issuing Common Shares in exchange 
therefor, or (ii) issue debt or equity securities or a combination thereof, 
having a value equal to the Current Value, in lieu of issuing Common Shares 
in exchange for each such Right, where the value of such securities shall be 
determined by a nationally recognized investment banking firm selected by 
majority vote of the Board of Directors, or (iii) deliver any combination of 
cash, property, Common Shares and/or other securities having a value equal to 
the Current Value in exchange for each Right.  For purposes of this Section 
24(c) only, the Current Value shall mean the product of the Current Per Share 
Market Price of Common Shares on the date of the occurrence of the event 
described above in subparagraph (a), multiplied by the number of Common 
Shares for which the Right otherwise would be exchangeable if there were 
sufficient shares available.  To the extent that the Company determines that 
some action need be taken pursuant to clauses (i), (ii) or (iii) of this 
Section 24(c), the Board of Directors may temporarily suspend the 
exercisability of the Rights for a period of up to sixty (60) days following 
the date on which the event described in Section 23(c),24(a), 24(g) shall 
have occurred, in order to seek any authorization of additional Common Shares 
and/or to decide the appropriate form of distribution to be made pursuant to 
the above provision and to determine the value thereof. In the event of any 
such suspension, the Company shall issue a public announcement stating that 
the exercisability of the Rights has been temporarily suspended.

              (d)    The Company shall not be required to issue fractions of 
Common Shares or to distribute certificates which evidence fractional Common 
Shares.  In lieu of such fractional Common Shares, there shall be paid to the 
registered holders of the Rights Certificates with regard to which such 
fractional Common Shares would otherwise be issuable, an amount in cash equal 
to the same fraction of the current market value of a whole Common Share (as 
determined pursuant to the second sentence of Section 1(j) hereof).

              (e)    The Company may, at its option, by majority vote of the 
Board of Directors, at any time before any Person has become an Acquiring 
Person, exchange all or part of the then

                                     -33-
<PAGE>

outstanding Rights for rights of substantially equivalent value, as 
determined reasonably and with good faith by the Board of Directors, based 
upon the advice of one or more nationally recognized investment banking firms.

              (f)    Immediately upon the action of the Board of Directors 
ordering the exchange of any Rights pursuant to subsection 24(e) of this 
Section 24 and without any further action and without any notice, the right 
to exercise such Rights shall terminate and the only right thereafter of a 
holder of such Rights shall be to receive that number of rights in exchange 
therefor as has been determined by the Board of Directors in accordance with 
subsection 24(e) above.  The Company shall give public notice of any such 
exchange; PROVIDED, HOWEVER, that the failure to give, or any defect in, such 
notice shall not affect the validity of such exchange.  The Company shall 
mail a notice of any such exchange to all of the holders of such Rights at 
their last addresses as they appear upon the registry books of the transfer 
agent for the Common Shares of the Company.  Any notice which is mailed in 
the manner herein provided shall be deemed given, whether or not the holder 
receives the notice. Each such notice of exchange will state the method by 
which the exchange of the Rights will be effected.

              (g)    Notwithstanding the provisions of this Section 24, in 
the event that a majority of the Board of Directors of the Company is elected 
by stockholder action by written consent, then until the 180th day following 
the effectiveness of such election the Rights shall not be exchanged for 
Common Shares or rights of substantially equivalent value if such exchange is 
reasonably likely to have the purpose or effect of facilitating a Transaction 
with an Interested Person.

       Section 25.   NOTICE OF CERTAIN EVENTS.

              (a)    In case the Company shall propose to effect or permit to 
occur any Triggering Event or Section 13 Event, the Company shall give notice 
thereof to each holder of Rights in accordance with Section 26 hereof at 
least twenty (20) days prior to occurrence of such Triggering Event or such 
Section 13 Event.

              (b)    In case any Triggering Event or Section 13 Event shall 
occur, then, in any such case, the Company shall as soon as practicable 
thereafter give to each holder of a Rights Certificate, in accordance with 
Section 26 hereof, a notice of the occurrence of such event, which shall 
specify the event and the consequences of the event to holders of Rights 
under Sections 11(a)(ii) and 13 hereof.

       Section 26.   NOTICES.  Notices or demands authorized by this 
Agreement to be given or made by the Rights Agent or by the holder of any 
Rights Certificate to or on the Company shall be sufficiently given or made 
if sent by first-class mail, postage prepaid, addressed (until another 
address is filed in writing with the Rights Agent) as follows:

                            Coherent, Inc.
                            5100 Patrick Henry Drive
                            Santa Clara, California  95056
                            Telephone:    (408) 764-4000

                                     -34-
<PAGE>

                            Attention:    General Counsel

                            with a copy to:

                            Wilson Sonsini Goodrich & Rosati
                            Professional Corporation
                            650 Page Mill Road
                            Palo Alto, California 94304-1050
                            Telephone:    (650) 493-9300
                            Facsimile:    (650) 493-6811
                            Attention:    Larry Sonsini

       Subject to the provisions of Section 21 hereof, any notice or demand
authorized by this Agreement to be given or made by the Company or by the holder
of any Rights Certificate to or on the Rights Agent shall be sufficiently given
or made if sent by first-class mail, postage prepaid, addressed (until another
address is filed in writing with the Company) as follows:

                            BankBoston, N.A.
                            c/o Boston EquiServe Limited Partnership
                            150 Royall Street
                            Canton, Massachusetts  02021
                            Attention: Client Administration

Notices or demands authorized by this Agreement to be given or made by the
Company or the Rights Agent to the holder of any Rights Certificate shall be
sufficiently given or made if sent by first-class mail, postage prepaid,
addressed to such holder at the address of such holder as shown on the registry
books of the Company.

       Section 27.   SUPPLEMENTS AND AMENDMENTS.  

              (a)    Prior to the Distribution Date, the Company may supplement
or amend this Agreement in any respect without the approval of any holders of
Rights and the Rights Agent shall, if the Company so directs, execute such
supplement or amendment.  From and after the Distribution Date, the Company and
the Rights Agent may from time to time supplement or amend this Agreement
without the approval of any holders of Rights in order to (i) cure any
ambiguity, (ii) correct or supplement any provision contained herein which may
be defective or inconsistent with any other provisions herein, (iii) shorten or
lengthen any time period hereunder or (iv) to change or supplement the
provisions hereunder in any manner that the Company may deem necessary or
desirable and that shall not adversely affect the interests of the holders of
Rights (other than an Acquiring Person or an Affiliate or Associate of an
Acquiring Person); PROVIDED, this Agreement may not be supplemented or amended
to lengthen, pursuant to clause (iii) of this sentence, (A) a time period
relating to when the Rights may be redeemed at such time as the Rights are not
then redeemable or (B) any other time period unless such lengthening is for the
purpose of protecting, enhancing or clarifying the rights of, and/or the
benefits to, the holders

                                     -35-
<PAGE>

of Rights (other than an Acquiring Person or an Affiliate or Associate of an 
Acquiring Person).  Upon the delivery of a certificate from an appropriate 
officer of the Company that states that the proposed supplement or amendment 
is in compliance with the terms of this Section 27, the Rights Agent shall 
execute such supplement or amendment.  Prior to the Distribution Date, the 
interests of the holders of Rights shall be deemed coincident with the 
interests of the holders of Common Shares.

              (b)    Notwithstanding the provisions of Section 27(a), in the 
event that a majority of the Board of Directors of the Company is elected by 
stockholder action by written consent, then until the 180th day following the 
effectiveness of such election, this Rights Agreement shall not be 
supplemented or amended in any manner reasonably likely to have the purpose 
or effect of facilitating a Transaction with an Interested Person.

       Section 28.   SUCCESSORS.  All the covenants and provisions of this 
Agreement by or for the benefit of the Company or the Rights Agent shall bind 
and inure to the benefit of their respective successors and assigns hereunder.

       Section 29.   DETERMINATIONS AND ACTIONS BY THE BOARD OF DIRECTORS, 
ETC. For all purposes of this Agreement, any calculation of the number of 
Common Shares outstanding at any particular time, including for purposes of 
determining the particular percentage of such outstanding Common Shares of 
which any Person is the Beneficial Owner, shall be made in accordance with 
the last sentence of Rule 13d-3(d)(1)(i) of the General Rules and Regulations 
under the Exchange Act. The Board of Directors of the Company shall have the 
exclusive power and authority to administer this Agreement and to exercise 
all rights and powers specifically granted to the Board, or the Company, or 
as may be necessary or advisable in the administration of this Agreement, 
including, without limitation, the right and power to (i) interpret the 
provisions of this Agreement and (ii) make all determinations deemed 
necessary or advisable for the administration of this Agreement (including a 
determination to redeem or not redeem the Rights or to amend the Agreement).  
All such actions, calculations, interpretations and determinations 
(including, for purposes of clause (y) below, all omissions with respect to 
the foregoing) which are done or made by the Board in good faith, shall (x) 
be final, conclusive and binding on the Company, the Rights Agent, the 
holders of the Rights Certificates and all other parties and (y) not subject 
the Board to any liability to the holders of the Rights.

       Section 30.   BENEFITS OF THIS AGREEMENT.  Nothing in this Agreement 
shall be construed to give to any Person other than the Company, the Rights 
Agent and the registered holders of the Rights Certificates (and, prior to 
the Distribution Date, the Common Shares) any legal or equitable right, 
remedy or claim under this Agreement; but this Agreement shall be for the 
sole and exclusive benefit of the Company, the Rights Agent and the 
registered holders of the Rights Certificates (and, prior to the Distribution 
Date, the Common Shares).

       Section 31.   SEVERABILITY.  If any term, provision, covenant or 
restriction of this Agreement is held by a court of competent jurisdiction or 
other authority to be invalid, void or unenforceable, the remainder of the 
terms, provisions, covenants and restrictions of this Agreement shall remain 
in full force and effect and shall in no way be affected, impaired or 
invalidated; PROVIDED, HOWEVER, that

                                     -36-
<PAGE>

notwithstanding anything in this Agreement to the contrary, if any such term, 
provision, covenant or restriction is held by such court or authority to be 
invalid, void or unenforceable and the Board of Directors of the Company 
determines in its good faith judgment that severing the invalid language from 
this Agreement would adversely affect the purpose or effect of this 
Agreement, the right of redemption set forth in Section 23 hereof shall be 
reinstated and shall not expire until the Close of Business on the tenth day 
following the date of such determination by the Board of Directors.

       Section 32.   GOVERNING LAW.  This Agreement and each Right and each
Rights Certificate issued hereunder shall be deemed to be a contract made under
the laws of the State of Delaware and for all purposes shall be governed by and
construed in accordance with the laws of such State applicable to contracts to
be made and performed entirely within such State.

       Section 33.   COUNTERPARTS.  This Agreement may be executed in any 
number of counterparts and each of such counterparts shall for all purposes 
be deemed to be an original, and all such counterparts shall together 
constitute but one and the same instrument.

       Section 34.   DESCRIPTIVE HEADINGS.  Descriptive headings of the 
several Sections of this Agreement are inserted for convenience only and 
shall not control or affect the meaning or construction of any of the 
provisions hereof.

                                     -37-
<PAGE>

       IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed as of the day and year first above written.

"COMPANY"                                 COHERENT, INC.


                                                 By: /s/ Scott H. Miller
                                                     ---------------------------
                                                 Name: Scott H. Miller
                                                      --------------------------
                                                 Title: Sr. Vice President
                                                       -------------------------
- --------------------------------

"RIGHTS AGENT"                            BANKBOSTON, N.A.


                                                 By: /s/ Tyler Haynes
                                                     ---------------------------
                                                 Name: /s/ Tyler Haynes
                                                       -------------------------
                                                 Title: Administrative Manager
                                                       -------------------------
<PAGE>

                                      EXHIBIT A

                              FORM OF RIGHTS CERTIFICATE


Certificate No. R-                                             _________ Rights


       NOT EXERCISABLE AFTER THE EARLIER OF (i) DECEMBER 16, 2008 (ii)
       THE DATE  TERMINATED BY THE COMPANY OR (iii) THE DATE THE COMPANY
       EXCHANGES THE RIGHTS PURSUANT TO THE RIGHTS AGREEMENT.  THE RIGHTS
       ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE COMPANY, AT $0.001
       PER RIGHT ON THE TERMS SET FORTH IN THE RIGHTS AGREEMENT.  UNDER
       CERTAIN CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY AN ACQUIRING
       PERSON OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS
       SUCH TERMS ARE DEFINED IN THE RIGHTS AGREEMENT) AND ANY SUBSEQUENT
       HOLDER OF SUCH RIGHTS MAY BECOME NULL AND VOID.  [THE RIGHTS
       REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE BENEFICIALLY
       OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING PERSON OR AN
       AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS ARE
       DEFINED IN THE RIGHTS AGREEMENT).  ACCORDINGLY, THIS RIGHTS
       CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND
       VOID IN THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF SUCH RIGHTS
       AGREEMENT.](*)


                                  RIGHTS CERTIFICATE

                                    COHERENT, INC.

       This certifies that ______________________________, or registered
assigns, is the registered owner of the number of Rights set forth above, each
of which entitles the owner thereof, subject to the terms, provisions and
conditions of the Common Shares Rights Agreement dated as of December 16, 1988,
as amended, (the "RIGHTS AGREEMENT"), between Coherent, Inc., a Delaware
corporation (the "COMPANY"), and BankBoston, N.A. (formerly The First National
Bank of Boston) ( the "RIGHTS AGENT"), to purchase from the Company at any time
after the Distribution Date (as such term is defined in the Rights Agreement)
and prior to 5:00 P.M., New York time, on December 16, 2008 at the principal
office of the Rights Agent, or at the office of its successor as Rights Agent,
one fully paid non-assessable share of Common Stock, $0.01 par value, (the
"COMMON SHARES"), of the Company, at a Exercise Price of EIGHTY DOLLARS ($80.00)
per Common Share (the "EXERCISE

- ----------------------
(*)  The portion of the legend in bracket shall be inserted only if applicable
and shall replace the preceding sentence.

<PAGE>

PRICE"), upon presentation and surrender of this Rights Certificate with the 
Form of Election to Purchase and related Certificate duly executed.  The 
number of Rights evidenced by this Rights Certificate (and the number of 
Common Shares which may be purchased upon exercise hereof) set forth above 
are the number and Exercise Price as of June 24, 1998 based on the Common 
Shares as constituted at such date.  As provided in the Rights Agreement, the 
Exercise Price and the number and kind of Common Shares or other securities 
which may be purchased upon the exercise of the Rights evidenced by this 
Rights Certificate are subject to modification and adjustment upon the 
happening of certain events.

              This Rights Certificate is subject to all of the terms, 
provisions and conditions of the Rights Agreement, which terms, provisions 
and conditions are hereby incorporated herein by reference and made a part 
hereof and to which Rights Agreement reference is hereby made for a full 
description of the rights, limitations of rights, obligations, duties and 
immunities hereunder of the Rights Agent, the Company and the holders of the 
Rights Certificates, which limitations of rights include the temporary 
suspension of the exercisability of such Rights under the specific 
circumstances set forth in the Rights Agreement. Copies of the Rights 
Agreement are on file at the principal executive offices of the Company and 
the above-mentioned office of the Rights Agent.

              Subject to the provisions of the Rights Agreement, the Rights 
evidenced by this Rights Certificate (i) may be redeemed by the Company, at 
its option, at a redemption price of $0.001 per Right or (ii) may be 
exchanged by the Company in whole or in part for Common Shares, substantially 
equivalent rights or other consideration as determined by the Company.

              This Rights Certificate, with or without other Rights 
Certificates, upon surrender at the principal office of the Rights Agent, may 
be exchanged for another Rights Certificate or Rights Certificates of like 
tenor and date evidencing Rights entitling the holder to purchase a like 
aggregate amount of securities as the Rights evidenced by the Rights 
Certificate or Rights Certificates surrendered shall have entitled such 
holder to purchase.  If this Rights Certificate shall be exercised in part, 
the holder shall be entitled to receive upon surrender hereof another Rights 
Certificate or Rights Certificates for the number of whole Rights not 
exercised.

              No fractional portion of a Common Share will be issued upon the 
exercise of any Right or Rights evidenced hereby but in lieu thereof a cash 
payment will be made, as provided in the Rights Agreement.

              No holder of this Rights Certificate, as such, shall be 
entitled to vote or receive dividends or be deemed for any purpose the holder 
of the Common Shares or of any other securities of the Company which may at 
any time be issuable on the exercise hereof, nor shall anything contained in 
the Rights Agreement or herein be construed to confer upon the holder hereof, 
as such, any of the rights of a stockholder of the Company or any right to 
vote for the election of directors or upon any matter submitted to 
stockholders at any meeting thereof, or to give or withhold consent to any 
corporate action, or to receive notice of meetings or other actions affecting 
stockholders (except as provided in the Rights Agreement), or to receive 
dividends or subscription rights, or otherwise,

                                     -2-
<PAGE>

until the Right or Rights evidenced by this Rights Certificate shall have 
been exercised as provided in the Rights Agreement.

       This Rights Certificate shall not be valid or obligatory for any 
purpose until it shall have been countersigned by the Rights Agent.

       WITNESS the facsimile signature of the proper officers of the Company 
and its corporate seal.  Dated as of  _______________, 19____.

ATTEST:                                          COHERENT, INC.


                                                 By:                            
                                                    ----------------------------

                                                 Its: Secretary

Countersigned:

BANKBOSTON, N.A.
as Rights Agent

By:
   ---------------------------------

Its:
    --------------------------------

                                     -3-
<PAGE>

                      FORM OF REVERSE SIDE OF RIGHTS CERTIFICATE

                                  FORM OF ASSIGNMENT

                   (To be executed by the registered holder if such
                  holder desires to transfer the Rights Certificate)

              FOR VALUE RECEIVED ____________________________ hereby sells, 
assigns and transfers unto 

                    (Please print name and address of transferee)

this Rights Certificate, together with all right, title and interest therein, 
and does hereby irrevocably constitute and appoint __________________________ 
Attorney, to transfer the within Rights Certificate on the books of the 
within-named Company, with full power of substitution.

Dated: _______________, 19____


                                                                                
                                                 _______________________________
                                                 Signature


Signature Guaranteed:

       Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.

<PAGE>

                                     CERTIFICATE


       The undersigned hereby certifies by checking the appropriate boxes 
that:

              (1)    this Rights Certificate [ ] is [ ] is not being sold, 
assigned and transferred by or on behalf of a Person who is or was an 
Acquiring Person, or an Affiliate or Associate of any such Person (as such 
terms are defined in the Rights Agreement);

              (2)    after due inquiry and to the best knowledge of the 
undersigned, it [ ] did [ ] did not acquire the Rights evidenced by this 
Rights Certificate from any Person who is, was or subsequently became an 
Acquiring Person or an Affiliate or Associate of any such Person.

Dated: _______________, 19____




                                                 ______________________________
                                                 Signature


Signature Guaranteed:

       Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.
<PAGE>

               FORM OF REVERSE SIDE OF RIGHTS CERTIFICATE -- CONTINUED

                             FORM OF ELECTION TO PURCHASE

                         (To be executed if holder desires to
                           exercise the Rights Certificate)

To:    ___________________________

              The undersigned hereby irrevocably elects to exercise 
_________________________ Rights represented by this Rights Certificate to 
purchase the number of Common Shares issuable upon the exercise of such 
Rights and requests that certificates for such number of Common Shares issued 
in the name of:

Please insert social security
or other identifying number


                           (Please print name and address)


If such number of Rights shall not be all the Rights evidenced by this Rights
Certificate, a new Rights Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number


                           (Please print name and address)


Dated: ___________________ , 19____



                                                 _______________________________
                                                 Signature

Signature Guaranteed:

       Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.
<PAGE>
                                     CERTIFICATE


       The undersigned hereby certifies by checking the appropriate boxes that:

       (1)    the Rights evidenced by this Rights Certificate [ ] are [ ] are
not being exercised by or on behalf of a Person who is or was an Acquiring
Person or an Affiliate or Associate of any such Person (as such terms are
defined in the Rights Agreement);

       (2)    after due inquiry and to the best knowledge of the undersigned, it
[ ] did [ ] did not acquire the Rights evidenced by this Rights Certificate from
any Person who is, was or subsequently became an Acquiring Person or an
Affiliate or Associate of any such Person.

Dated: _______________, 19____



                                                 Signature


Signature Guaranteed:

       Signatures must be guaranteed by a member firm of a registered national
securities exchange, a member of the National Association of Securities Dealers,
Inc., or a commercial bank or trust company having an office or correspondent in
the United States.

<PAGE>

               FORM OF REVERSE SIDE OF RIGHTS CERTIFICATE -- CONTINUED

                                        NOTICE


              The signature in the foregoing Forms of Assignment and Election
must conform to the name as written upon the face of this Rights Certificate in
every particular, without alteration or enlargement or any change whatsoever.

<PAGE>

                                      EXHIBIT B

                               STOCKHOLDER RIGHTS PLAN
                                    COHERENT, INC.


                                  SUMMARY OF RIGHTS

DISTRIBUTION AND
TRANSFER OF RIGHTS;
RIGHTS CERTIFICATE:  The Board of Directors has declared a dividend of one Right
                     for each share of Coherent, Inc. Common Stock outstanding. 
                     Prior to the Distribution Date referred to below, the
                     Rights will be evidenced by and trade with the certificates
                     for the Common Stock.  After the Distribution Date,
                     Coherent, Inc. (the "COMPANY") will mail Rights
                     certificates to the Company's stockholders and the Rights
                     will become transferable apart from the Common Stock.

DISTRIBUTION DATE:   Rights will separate from the Common Stock and become
                     exercisable (the "DISTRIBUTION DATE") following (a) the
                     tenth day after a person or group acquires beneficial
                     ownership of 20% or more of the Company's Common Stock or
                     (b) the tenth business day (or such later date as may be
                     determined by the Company's Board of Directors) after a
                     person or group announces a tender or exchange offer, the
                     consummation of which would result in ownership by a person
                     or group of 20% or more of the Company's Common Stock.

COMMON STOCK
PURCHASABLE UPON
EXERCISE OF RIGHTS:  After the Distribution Date, each Right will entitle the
                     holder to purchase for $80.00 (the "EXERCISE PRICE"), one
                     share of the Company's Common Stock.

FLIP-IN:             If an acquiror (an "ACQUIRING PERSON") obtains 20% or more
                     of the Company's Common Stock THEN each Right (other than
                     Rights owned by an Acquiring Person or its affiliates) will
                     entitle the holder thereof to purchase, for the Exercise
                     Price, a number of shares of the Company's Common Stock
                     having a then current market value of twice the Exercise
                     Price.

<PAGE>

FLIP-OVER:           If, after an Acquiring Person obtains 20% or more of the
                     Company's Common Stock, (a) the Company merges into another
                     entity, (b) an acquiring entity merges into the Company or
                     (c) the Company sells more than 50% of the Company's assets
                     or earning power, THEN each Right (other than Rights owned
                     by an Acquiring Person or its affiliates) will entitle the
                     holder thereof to purchase, for the Exercise Price, a
                     number of shares of Common Stock of the person engaging in
                     the transaction having a then current market value of twice
                     the Exercise Price.

EXCHANGE PROVISION:  At any time after the date an Acquiring Person obtains 20%
                     or  more of the Company's Common Stock and prior to the
                     acquisition by the Acquiring Person of 50% of the
                     outstanding Common Stock, the Company's Board of Directors
                     may exchange the Rights (other than Rights owned by the
                     Acquiring Person or its affiliates), in whole or in part,
                     for shares of Common Stock of the Company at an exchange
                     ratio of one share of Common Stock per Right (subject to
                     adjustment).  However, if a majority of the Company's Board
                     of Directors is elected by stockholder action by written
                     consent, then for a period of 180 days following such
                     election the Rights cannot be exchanged if such exchange is
                     reasonably likely to have the purpose or effect of
                     facilitating an acquisition of the Company by a person or
                     entity who proposed, nominated or supported a director of
                     the Company so elected by written consent (an "INTERESTED
                     PERSON").

REDEMPTION OF
THE RIGHTS:          Rights will be redeemable at the Company's option for
                     $0.001 per Right at any time on or prior to the
                     Distribution Date.  However, if a majority of the Company's
                     Board of Directors is elected by stockholder action by
                     written consent, then for a period of 180 days following
                     such election the Rights cannot be redeemed if such
                     redemption is reasonably likely to have the purpose or
                     effect of facilitating an acquisition of the Company by an
                     Interested Person.

EXPIRATION OF
THE RIGHTS:          The Rights expire on the earliest of (a) December 16, 2008
                     or (b) exchange or redemption of the Rights as described
                     above.

AMENDMENT OF
TERMS OF RIGHTS:     The terms of the Rights and the Rights Agreement may be
                     amended in any respect without the consent of the Rights
                     holders on or prior to the Distribution Date; thereafter,
                     the terms of the Rights and the Rights Agreement may be
                     amended without the

                                     -2-
<PAGE>

                     consent of the Rights holders in order to cure any 
                     ambiguities or to make changes which do not
                     adversely affect the interests of Rights holders (other
                     than the Acquiring Person).  However, if a majority of the
                     Company's Board of Directors is elected by stockholder
                     action by written consent, then for a period of 180 days
                     following such election the Rights Agreement cannot be
                     amended in any manner reasonably likely to have the purpose
                     or effect of facilitating an acquisition of the Company by
                     an Interested Person.

VOTING RIGHTS:       Rights will not have any voting rights.

ANTI-DILUTION
PROVISIONS:          Rights will have the benefit of certain customary 
                     anti-dilution provisions.

TAXES:               The Rights distribution should not be taxable for federal
                     income tax purposes.  However, following an event which
                     renders the Rights exercisable or upon redemption of the
                     Rights, stockholders may recognize taxable income.

The foregoing is a summary of certain principal terms of the Stockholder Rights
Plan only and is qualified in its entirety by reference to the detailed terms of
the Common Shares Rights Agreement dated as of December 16, 1988, as amended,
between the Company and the Rights Agent.

UNDER CERTAIN CIRCUMSTANCES SET FORTH IN THE RIGHTS AGREEMENT BETWEEN COHERENT,
INC. AND BANKBOSTON, N.A., DATED AS OF DECEMBER 16, 1988, AS AMENDED, RIGHTS
ISSUED TO, OR HELD BY, ANY PERSON WHO IS, WAS OR BECOMES AN ACQUIRING PERSON OR
ANY AFFILIATE OR ASSOCIATE THEREOF (AS SUCH TERMS ARE DEFINED IN SUCH RIGHTS
AGREEMENT), WHETHER CURRENTLY HELD BY OR ON BEHALF OF SUCH PERSON OR BY ANY
SUBSEQUENT HOLDER, MAY BECOME NULL AND VOID.

                                     -3-


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