THERMO OPTEK CORP
DEF 14A, 1997-05-02
LABORATORY ANALYTICAL INSTRUMENTS
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                           SCHEDULE 14A INFORMATION

          Proxy Statement Pursuant to Section 14(a) of the Securities
                             Exchange Act of 1934
                              (Amendment No.   )

       Filed by the Registrant  [ X ]

       Filed by a Party other than the Registrant  [   ]

       Check the appropriate box:

       [   ]Preliminary Proxy Statement   [   ]Confidential, for 
                                               Use of the Commission 
                                               Only (as Permitted by 
                                               Rule 14a-6(e)(2))
       [ X ]Definitive Proxy Statement

       [   ]Definitive Additional Materials

       [   ]Soliciting Material Pursuant to Section 240.14a-11(c) or 
            Section 240.14a-12

                            Thermo Optek Corporation
                     ------------------------------------
                 (Name of Registrant as Specified in Charter)



                    --------------------------------------
         (Name of Person(s) Filing Proxy Statement, if other than the
                                  Registrant)

       Payment of Filing Fee (Check the appropriate box):

       [ X ]No fee required.

       [   ]Fee computed on table below per Exchange Act Rules 
                 14a-6(i)(4) and 0-11.
            (1)  Title of each class of securities to which transaction 
                 applies: ______________________________________________
            (2)  Aggregate number of securities to which transaction 
                 applies: ______________________________________________
            (3)  Per unit price or other underlying value of transaction
                 computed pursuant to Exchange Act Rule 0-11 (Set forth
                 the amount on which the filing fee is calculated and
                 state how it was determined): _________________________
            (4)  Proposed maximum aggregate value of transaction: ______
            (5)  Total fee paid: _______________________________________

       [   ]Fee paid previously with preliminary materials.

       [   ]Check box if any part of the fee is offset as provided by
            Exchange Act Rule 0-11(a)(2) and identify the filing for
            which the offsetting fee was paid previously.  Identify the
            previous filing by registration statement number, or the
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<PAGE>





            Form or Schedule and the date of its filing.
            (1)  Amount Previously Paid: _______________________________
            (2)  Form, Schedule or Registration Statement No.: _________
            (3)  Filing Party: _________________________________________
            (4)  Date Filed: ___________________________________________

       Notes:





       AA971210061
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<PAGE>












       THERMO OPTEK CORPORATION 
       8E Forge Parkway
       Franklin, Massachusetts 02038

                                                          April 29, 1997
        
       Dear Stockholder:
        
            The enclosed Notice calls the 1997 Annual Meeting of the
       Stockholders of Thermo Optek Corporation.  I respectfully request
       all Stockholders attend this Meeting, if possible.  

            Our Annual Report for the year ended December 28, 1996, is
       enclosed. I hope you will read it carefully. Feel free to forward
       any questions you may have if you are unable to be present at the
       Meeting. 
        
            Enclosed with this letter is a proxy authorizing three
       officers of the Corporation to vote your shares for you if you do
       not attend the Meeting. Whether or not you are able to attend the
       Meeting, I urge you to complete your proxy and return it to our
       transfer agent, American Stock Transfer and Trust Company, in the
       enclosed addressed, postage-paid envelope, as a quorum of the
       Stockholders must be present at the Meeting, either in person or
       by proxy. 
        
            I would appreciate your immediate attention to the mailing
       of this proxy.
        
                                     Yours very truly,





                                     EARL R. LEWIS
                                     Chairman and Chief Executive 
                                     Officer
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<PAGE>









       THERMO OPTEK CORPORATION
       8E Forge Parkway
       Franklin, Massachusetts 02038

                                                          April 29, 1997

       To the Holders of the Common Stock of
       THERMO OPTEK CORPORATION


                           NOTICE OF ANNUAL MEETING
            The 1997 Annual Meeting of the Stockholders of Thermo Optek
       Corporation (the "Corporation") will be held on Monday, June 2,
       1997 at 10:00 a.m. at The Hyatt Regency Hotel, Hilton Head, South
       Carolina.  The purpose of the Meeting is to consider and take
       action upon the following matters: 

            1.   Election of five directors.

            2.   A proposal recommended by the Board of Directors to
                 adopt an employees' stock purchase plan and to reserve
                 100,000 shares of the Corporation's Common Stock for
                 issuance thereunder.

            3.   Such other business as may properly be brought before
                 the Meeting and any adjournment thereof. 
        
            The transfer books of the Corporation will not be closed
       prior to the Meeting, but, pursuant to appropriate action by the
       Board of Directors, the record date for the determination of the
       Stockholders entitled to notice of and vote at the Meeting is
       April 7, 1997. 
        
            The By-laws require that the holders of a majority of the
       stock issued and outstanding and entitled to vote be present or
       represented by proxy at the Meeting in order to constitute a
       quorum for the transaction of business. It is important that your
       shares be represented at the Meeting regardless of the number of
       shares you may hold. Whether or not you are able to be present in
       person, please sign and return promptly the enclosed proxy in the
       accompanying envelope, which requires no postage if mailed in the
       United States.  

            This Notice, the proxy and proxy statement enclosed herewith
       are sent to you by order of the Board of Directors. 
        
                                          SANDRA L. LAMBERT
                                                  Secretary


                                        2
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                                PROXY STATEMENT

            The enclosed proxy is solicited by the Board of Directors of
       Thermo Optek Corporation (the "Corporation") for use at the 1997
       Annual Meeting of the Stockholders (the "Meeting") to be held on
       Monday, June 2, 1997, at 10:00 a.m. at The Hyatt Regency Hotel,
       Hilton Head, South Carolina, and any adjournment thereof. The
       mailing address of the executive office of the Corporation is 8E
       Forge Parkway, Franklin, Massachusetts 02038.  This proxy
       statement and the enclosed proxy were first furnished to
       Stockholders of the Corporation on or about May 2, 1997.  
                               VOTING PROCEDURES

            The Board of Directors intends to present to the Meeting the
       election of five directors, constituting the entire Board of
       Directors, as well as one other matter:  a proposal to adopt an
       employees' stock purchase plan and to reserve 100,000 shares of
       common stock of the Corporation, $.01 par value ("Common Stock"),
       for issuance under the employees' stock purchase plan.

            The representation in person or by proxy of a majority of
       the outstanding shares of Common Stock entitled to vote at the
       Meeting is necessary to provide a quorum for the transaction of
       business at the Meeting. Shares can only be voted if the
       Stockholder is present in person or is represented by returning a
       properly signed proxy. Each Stockholder's vote is very important.
       Whether or not you plan to attend the Meeting in person, please
       sign and promptly return the enclosed proxy card, which requires
       no postage if mailed in the United States. All signed and
       returned proxies will be counted towards establishing a quorum
       for the Meeting, regardless of how the shares are voted. 
        
            Shares represented by proxy will be voted in accordance with
       your instructions. You may specify your choice by marking the
       appropriate box on the proxy card. If your proxy card is signed
       and returned without specifying choices, your shares will be
       voted for the management nominees for directors, for the
       management proposal, and as the individuals named as proxy
       holders on the proxy deem advisable on all other matters as may
       properly come before the Meeting. 
        
            In order to be elected a director, a nominee must receive
       the affirmative vote of a majority of the shares of Common Stock
       present and entitled to vote on the election. For the management
       proposal to adopt the employees' stock purchase plan, the
       affirmative vote of a majority of shares present in person or
       represented by proxy, and entitled to vote on the matter, is
       necessary for approval. Withholding authority to vote for a
       nominee for director or an instruction to abstain from voting on
       the proposal will be treated as shares present and entitled to
       vote and, for purposes of determining the outcome of the vote,
       will have the same effect as a vote against the nominee or the
       proposal. With respect to the election of directors and the
       adoption of the employees' stock purchase plan, broker
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       "non-votes" will not be treated as shares present and entitled to
       vote on a voting matter and will have no effect on the outcome of
       the vote. A broker "non-vote" occurs when a nominee holding
       shares for a beneficial holder does not have discretionary voting
       power and does not receive voting instructions from the
       beneficial owner. 
        
            A Stockholder who returns a proxy may revoke it at any time
       before the Stockholder's shares are voted at the Meeting by
       written notice to the Secretary of the Corporation received prior
       to the Meeting, by executing and returning a later-dated proxy or
       by voting by ballot at the Meeting. 
        
            The outstanding stock of the Corporation entitled to vote
       (excluding shares held in treasury by the Corporation) as of
       April 7, 1997 consisted of 48,450,000 shares of Common Stock.
       Only Stockholders of record at the close of business on April 7,
       1997 are entitled to vote at the Meeting. Each share is entitled
       to one vote.

                                        

































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                                - PROPOSAL 1 -

                             ELECTION OF DIRECTORS

            Five directors are to be elected at the Meeting, each to
       hold office until his successor is chosen and qualified or until
       his earlier resignation, death or removal. 
        
       Nominees For Directors
            Set forth below are the names of the persons nominated as
       directors, their ages, their offices in the Corporation, if any,
       their principal occupation or employment for the past five years,
       the length of their tenure as directors and the names of other
       public companies in which such persons hold directorships.
       Information regarding their beneficial ownership of the
       Corporation's Common Stock and of the common stock of its parent
       company, Thermo Instrument Systems Inc. ("Thermo Instrument"), a
       manufacturer of analytical, environmental monitoring and process
       control  instrumentation, and Thermo Instrument's parent company,
       Thermo Electron Corporation ("Thermo Electron"), a diversified
       high technology company, is reported under the caption "Stock
       Ownership." All of the nominees are currently directors of the
       Corporation. 


       George N. Hatsopoulos Dr. Hatsopoulos, 70, has been chairman of
                             the board and a director of the
                             Corporation since its inception in August
                             1995.  He has served as chairman and
                             chief executive officer of Thermo
                             Electron since he founded that company in
                             1956 and as its president from 1956 to
                             January 1997.  Dr. Hatsopoulos is also a
                             director of Photoelectron Corporation,
                             Thermedics Inc., Thermo Ecotek
                             Corporation, Thermo Electron, Thermo
                             Fibertek Inc., Thermo Instrument,
                             ThermoQuest Corporation and ThermoTrex
                             Corporation.  Dr. Hatsopoulos is the
                             brother of John N. Hatsopoulos, the chief
                             financial officer and a vice president of
                             the Corporation.












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       Stephen R. Levy       Mr. Levy, 56, has been a director of the
                             Corporation since November 1995.  Since
                             November 1995, Mr. Levy has been
                             president of The Apogee Group, Inc., a
                             company that he founded that provides
                             consulting services in high technology.
                             Mr. Levy served as chairman of the board
                             and chief executive officer of BBN
                             Corporation, a high technology company,
                             from 1983 to 1994 and was president and
                             chief executive officer of BBN
                             Corporation from 1976 to 1983.  He
                             retired from BBN Corporation in 1995 and
                             is currently its chairman emeritus.  He
                             is also a director of BBN Corporation and
                             OneWave, Inc.

       Earl R. Lewis         Mr. Lewis, 53, has been chief executive
                             officer and a director of the Corporation
                             since its inception in August 1995.  He
                             also served as the corporation's
                             president from August 1995 to April 1997.
                              Mr. Lewis has been president and chief
                             operating officer of Thermo Instrument
                             since March 1997 and January 1996,
                             respectively, was executive vice
                             president of Thermo Instrument from
                             January 1996 to March 1997, was a senior
                             vice president of Thermo Instrument from
                             January 1994 to January 1996, and was a
                             vice president of Thermo Instrument from
                             March 1992 to January 1994.  Mr. Lewis is
                             a director of Thermo BioAnalysis
                             Corporation, ThermoQuest Corporation,
                             ThermoSpectra Corporation and Trex
                             Medical Corporation.
       Robert A. McCabe      Mr. McCabe, 62, has been a director of
                             the Corporation since March 1996.  He has
                             served as president of Pilot Capital
                             Corporation, which is engaged in private
                             investments and provides acquisition
                             services, since 1987.  Prior to that
                             time, Mr. McCabe was a managing director
                             of Lehman Brothers Inc., an investment
                             banking firm.  Mr. McCabe is also a
                             director of Borg-Warner Security
                             Corporation, Church & Dwight Company and
                             Thermo Electron.






                                        6
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       Arvin H. Smith        Mr. Smith, 67, has been a director of the
                             Corporation since its inception in August
                             1995.  Mr. Smith has been the chairman of
                             the board and chief executive officer of
                             Thermo Instrument since March 1997 and
                             1986, respectively, and was president of
                             Thermo Instrument from 1986 to March
                             1997.  Mr. Smith also has been an
                             executive vice president of Thermo
                             Electron since 1991 and a senior vice
                             president of Thermo Electron from 1986 to
                             1991. Mr. Smith is also a director of
                             Thermo BioAnalysis Corporation, Thermo
                             Instrument, Thermo Power Corporation,
                             ThermoQuest Corporation and ThermoSpectra
                             Corporation.


       Committees of the Board of Directors and Meetings
            The Board of Directors has established an Audit Committee
       and a Human Resources Committee, each consisting solely of
       outside directors. The present members of the Audit Committee are
       Mr. Levy (Chairman) and Mr. McCabe.  The Audit Committee reviews
       the scope of the audit with the Corporation's independent public
       accountants and meets with them for the purpose of reviewing the
       results of the audit subsequent to its completion. The present
       members of the Human Resources Committee are Mr. Levy and Mr.
       McCabe (Chairman).  The Human Resources Committee reviews the
       performance of senior members of management, recommends executive
       compensation and administers the Corporation's stock option and
       other stock-based compensation plans. The Corporation does not
       have a nominating committee of the Board of Directors. The Board
       of Directors met eight times, the Audit Committee met twice and
       the Human Resources Committee met six times during fiscal 1996.
       Each director attended at least 75% of all meetings of the Board
       of Directors and committees on which he served held during fiscal
       1996.

       Compensation of Directors

            Cash Compensation
            Directors who are not employees of the Corporation, of
       Thermo Electron or of any other companies affiliated with Thermo
       Electron (also referred to as "outside directors") receive an
       annual retainer of $4,000 and a fee of $1,000 per day for
       attending regular meetings of the Board of Directors and $500 per
       day for participating in meetings of the Board of Directors held
       by means of conference telephone and for participating in certain
       meetings of committees of the Board of Directors.  Payment of
       directors' fees is made quarterly.  Dr. Hatsopoulos, Mr. Lewis
       and Mr. Smith are all employees of Thermo Electron or its
       subsidiaries and do not receive any cash compensation from the
       Corporation for their services as directors.  Directors are also

                                        7
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       reimbursed for out-of-pocket expenses incurred in attending such
       meetings.
        
            Deferred Compensation Plan
            Under the Deferred Compensation Plan for directors (the
       "Deferred Compensation Plan"), a director has the right to defer
       receipt of his cash fees until he ceases to serve as a director,
       dies or retires from his principal occupation. In the event of a
       change in control or proposed change in control of the
       Corporation that is not approved by the Board of Directors,
       deferred amounts become payable immediately. Either of the
       following is deemed to be a change of control: (a) the
       occurrence, without the prior approval of the Board of Directors,
       of the acquisition, directly or indirectly, by any person of 50%
       or more of the outstanding Common Stock or the outstanding common
       stock of Thermo Instrument or 25% or more of the outstanding
       common stock of Thermo Electron; or (b) the failure of the
       persons serving on the Board of Directors immediately prior to
       any contested election of directors or any exchange offer or
       tender offer for the Common Stock or the common stock of Thermo
       Instrument or Thermo Electron to constitute a majority of the
       Board of Directors at any time within two years following any
       such event. Amounts deferred pursuant to the Deferred
       Compensation Plan are valued at the end of each quarter as units
       of the Corporation's Common Stock. When payable, amounts deferred
       may be disbursed solely in shares of Common Stock accumulated
       under the Deferred Compensation Plan. A total of 75,000 shares of
       Common Stock have been reserved for issuance under the Deferred
       Compensation Plan. As of March 1, 1997, deferred units equal to
       556.47 shares of Common Stock were accumulated under the Deferred
       Compensation Plan.   

            Directors Stock Option Plan

            The Corporation's directors stock option plan (the
       "Directors Plan") provides for the grant of stock options to
       purchase shares of common stock of the Corporation to outside
       directors as additional compensation for their service as
       directors.  The Directors Plan provides for the grant of stock
       options upon a director's initial appointment and, beginning in
       2000, awards options to purchase 1,000 shares annually to outside
       directors.  A total of 225,000 shares of Common Stock have been
       reserved for issuance under the Directors Plan.

            Under the Directors Plan, each eligible director was granted
       an option to purchase 45,000 shares upon the effective date of
       the Corporation's initial public offering.  In addition, each new
       outside director who joined the Board of Directors during 1996
       was granted an option to purchase 45,000 shares of Common Stock.
       The size of awards to new directors appointed to the Board of
       Directors after 1996 is reduced by 11,250 shares in each
       subsequent year.  Outside directors who join the Board of
       Directors after 1999 would not receive an option grant upon their
       appointment or election to the Board of Directors, but would be
                                        8
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       eligible to participate in the annual option awards described
       below.  Options evidencing initial grants to directors are
       exercisable six months after the date of grant.  The shares
       acquired upon exercise are subject to restrictions on transfer
       and the right of the Corporation to repurchase such shares at the
       exercise price in the event the director ceases to serve as a
       director of the Corporation or any other Thermo Electron company.
       The restrictions and repurchase rights lapse or are deemed to
       have lapsed in equal annual installments of 11,250 shares per
       year, starting with the first anniversary of the grant date,
       provided the director has continuously served as a director of
       the Corporation or any other Thermo Electron company since the
       grant date.  These options expire on the fifth anniversary of the
       grant date, unless the director dies or otherwise ceases to serve
       as a director of the Corporation or another Thermo Electron
       company prior to that date.

            Outside directors will also receive an annual grant of
       options to purchase 1,000 shares of Common Stock, commencing with
       the Annual Meeting of the Stockholders to be held in 2000.  The
       annual grant will be made at the close of business on the date of
       each Annual Meeting of the Stockholders of the Corporation to
       each outside director then holding office.  Options evidencing
       annual grants may be exercised at any time from and after the
       six-month anniversary of the grant date of the option and prior
       to the expiration of the option on the third anniversary of the
       grant date.  Shares acquired upon exercise of the options would
       be subject to repurchase by the Corporation at the exercise price
       if the recipient ceased to serve as a director of the Corporation
       or another Thermo Electron company prior to the first anniversary
       of the grant date.

            The exercise price for options granted under the Directors
       Plan is the average of the closing prices of the common stock as
       reported on the American Stock Exchange (or other principal
       market on which the common stock is then traded) for the five
       trading days preceding and including the date of grant, or, if
       the shares are not then traded, at the last price per share paid
       by third parties in an arms-length transaction prior to the
       option grant.   As of March 1, 1997, options to purchase 90,000
       shares had been granted under the Directors Plan, no options had
       lapsed or been exercised and options to purchase 135,000 shares
       of Common Stock were available for future grant under the
       Directors Plan. 

       Stock Ownership Policies for Directors 

            During 1996, the Human Resources Committee of the Board of
       Directors (the "Committee") established a stock holding policy
       for directors.   The stock holding policy requires each director
       to hold a minimum of 1,000 shares of Common Stock.  Directors are
       requested to achieve this ownership level by the 1998 Annual
       Meeting of Stockholders.  Directors who are also executive
       officers of the Corporation are required to comply with a
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       separate stock holding policy established by the Committee in
       1996, which is described in "Committee Report on Executive
       Compensation - Stock Ownership Policies."   

            In addition, the Committee adopted a policy requiring
       directors to hold a certain number of shares of the Corporation's
       Common Stock equal to one-half of their net option exercises over
       a period of five years.  The net option exercise is determined by
       calculating the number of shares acquired upon exercise of a
       stock option, after deducting the number of shares that could
       have been traded to exercise the option and the number of shares
       that could have been surrendered to satisfy tax withholding
       obligations attributable to the exercise of the option.  This
       policy is also applicable to executive officers and is described
       in "Committee Report on Executive Compensation -  Stock Ownership
       Policies."

                                STOCK OWNERSHIP
            The following table sets forth the beneficial ownership of
       Common Stock, as well as the common stock of Thermo Instrument,
       the Corporation's parent company, and of Thermo Electron, Thermo
       Instrument's parent company, as of March 1, 1997, with respect to
       (i) each person who was known by the Corporation to own
       beneficially more than 5% of the outstanding shares of Common
       Stock, (ii) each director, (iii) each executive officer named in
       the summary compensation table under the heading "Executive
       Compensation" and (iv) all directors and current executive
       officers as a group.

            While certain directors and executive officers of the
       Corporation are also directors and executive officers of Thermo
       Instrument or its subsidiaries other than the Corporation, all
       such persons disclaim beneficial ownership of the shares of
       common stock owned by Thermo Instrument.

       

<TABLE>

<CAPTION>



                                                      Thermo       Thermo
                                         Thermo Optek Instrument   Electron
        Name (1)                         Corporation  Systems Inc. Corporation
                                         (2)          (3)          (4)

        <S>                              <C>          <C>          <C>

        Thermo Instrument Systems Inc.   45,000,000   N/A          N/A

        George N. Hatsopoulos               110,000      143,314      3,512,279

        Kristine A. Langdon                  75,500       7,417        16,452

        Stephen R. Levy                      47,556       0            0

        Earl R. Lewis                       254,000      128,233      124,184

        Robert A. McCabe                     48,000       53,504       47,515

        Robert  J. Rosenthal                113,500      61,441       31,350

        Arvin H. Smith                       98,000       431,667      513,038

        All directors and current
        executive officers as a group
        (9 persons)                         872,556       925,472    4,916,584


</TABLE>



       (1)  Except as reflected in the footnotes to this table, shares
            beneficially owned consist of shares owned by the indicated
            person or by that person for the benefit of minor children
            and all share ownership includes sole voting and investment
            power. 
        
       (2)  Shares of the Common Stock beneficially owned by Dr.
            Hatsopoulos, Ms. Langdon, Mr. Levy, Mr. Lewis, Mr. McCabe,
            Dr. Rosenthal, Mr. Smith and all directors and executive
            officers as a group include 90,000, 75,000, 45,000, 225,000,
            45,000, 112,500, 90,000 and 778,500 shares, respectively,
            that such person or group has the right to acquire within 60
            days of March 1, 1997, through the exercise of stock

                                       10
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            options. Shares of the Common Stock beneficially owned by
            Ms. Langdon include a total of 500 shares held by her as
            custodian for two minor children.  Shares of the Common
            Stock beneficially owned by Mr. Lewis include 2,500 shares
            owned by his spouse and a total of 2,000 shares owned by two
            sons.  No director or executive officer beneficially owned
            more than 1% of the Common Stock outstanding as of March 1,
            1997; all directors and executive officers as a group
            beneficially owned 1.8% of the Common Stock outstanding as
            of such date. 

       (3)  Shares of the common stock of Thermo Instrument beneficially
            owned by Dr. Hatsopoulos, Ms. Langdon, Mr. Lewis, Mr.
            McCabe, Dr. Rosenthal, Mr. Smith and all directors and
            executive officers as a group include 93,750, 7,124,
            112,500, 10,995, 60,890, 234,375 and 600,529 shares,
            respectively, that such person or group had the right to
            acquire within 60 days after March 1, 1997, through the
            exercise of stock options. Shares of the common stock of
            Thermo Instrument beneficially owned by Dr. Hatsopoulos, Mr.
            Smith and all directors and executive officers as a group
            include 529, 530 and 1,984 shares, respectively, allocated
            through March 1, 1997, to their respective accounts
            maintained pursuant to Thermo Electron's employee stock
            ownership plan, of which the trustees, who have investment
            power over its assets, are executive officers of Thermo
            Electron (the "ESOP").  Shares beneficially owned by Dr.
            Hatsopoulos include 21,368 shares held by his spouse and 50
            shares allocated to the account of his spouse maintained
            pursuant to the ESOP.  Shares beneficially owned by Mr.
            Lewis include 2,390 shares held by Mr. Lewis' spouse.  The
            directors and executive officers of the Corporation did not
            individually or as a group beneficially own more than 1% of
            the common stock of Thermo Instrument outstanding as of
            March 1, 1997.
        
       (4)  The shares of the common stock of Thermo Electron shown in
            the table reflect a three-for-two split of such stock
            distributed in June 1996 in the form of a 50% stock
            dividend. Shares of the common stock of Thermo Electron
            beneficially owned by Dr. Hatsopoulos, Ms. Langdon, Mr.
            Lewis, Mr. McCabe, Dr. Rosenthal, Mr. Smith and all
            directors and executive officers as a group include
            1,499,500, 15,750, 121,536, 9,375, 30,900, 222,411 and
            2,426,731 shares, respectively, that such person or group
            has the right to acquire within 60 days of March 1, 1997,
            through the exercise of stock options. Shares of the common
            stock of Thermo Electron beneficially owned by Dr.
            Hatsopoulos, Mr. Smith and all directors and executive
            officers as a group include 2,164, 1,717 and 7,139 full
            shares, respectively, allocated to accounts maintained
            pursuant to the ESOP.  Shares of the common stock of Thermo
            Electron beneficially owned by Mr. McCabe and all directors
            and executive officers as a group include 34,725 full shares
                                       11
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            allocated to Mr. McCabe's account under Thermo Electron's
            deferred compensation plan for directors.  Shares of the
            common stock of Thermo Electron beneficially owned by Dr.
            Hatsopoulos include 89,601 shares held by Dr. Hatsopoulos'
            spouse, 168,750 shares held by a QTIP trust of which Dr.
            Hatsopoulos' spouse is the trustee, 39,937 shares held by a
            family trust of which Dr. Hatsopoulos' spouse is the
            trustee, and 153 shares allocated to the account of Dr.
            Hatsopoulos' spouse maintained pursuant to the ESOP.  Shares
            beneficially owned by Ms. Langdon include 310 shares held by
            her as custodian for two minor children.  No director or
            executive officer beneficially owned more than 1% of the
            common stock of Thermo Electron outstanding as of March 1,
            1997, except Dr. Hatsopoulos who beneficially owned 2.3% of
            such stock; all directors and executive officers as a group
            beneficially owned approximately 3.2% of the Thermo Electron
            common stock outstanding as of such date. 
                
       (5)  As of March 1, 1997, Thermo Instrument beneficially owned
            93% of the outstanding Common Stock. Thermo Instrument's
            address is 1275 Hammerwood Avenue, Sunnyvale, California
            94089.  As of March 1, 1997, Thermo Instrument had the power
            to elect all of the members of the Corporation's Board of
            Directors.  Thermo Instrument is a majority owned subsidiary
            of Thermo Electron, and therefore Thermo Electron may be
            deemed a beneficial owner of the shares of Common Stock
            beneficially owned by Thermo Instrument.  Thermo Electron
            disclaims beneficial ownership of these shares.
        
       Section 16(a) Beneficial Ownership Reporting Compliance

            Section 16(a) of the Securities Exchange Act of 1934
       requires the Corporation's directors and executive officers, and
       beneficial owners of more than 10% of the Common Stock, such as
       Thermo Instrument and its parent company, Thermo Electron, to
       file with the Securities and Exchange Commission initial reports
       of ownership and periodic reports of changes in ownership of the
       Corporation's securities. Based upon a review of such filings,
       all Section 16(a) filing requirements applicable to such persons
       were complied with during 1996, except in the following
       instances.  Mr. Stephen R. Levy, a director of the Corporation,
       filed one Form 4 late reporting one transaction.  Thermo
       Instrument filed three Forms 4 late, reporting a total of three
       transactions consisting of the lapse and cancellation of options
       to purchase the Common Stock granted to its employees.  Thermo
       Electron filed six Forms 4  late, reporting a total of 21
       transactions, including the three transactions described above
       for Thermo Instrument, an additional 16 open market purchases of
       Common Stock, one additional lapse and cancellation without
       exercise of options granted to its employees to purchase the
       Common Stock  and one grant to employees of options to purchase
       the Common Stock.


                                       12
PAGE
<PAGE>







                            EXECUTIVE COMPENSATION
       NOTE:  All share amounts reported below have, in all cases, been
       adjusted as applicable to reflect a three-for-two stock split
       distributed in June 1996 with respect to the common stock of
       Thermo Electron in the form of a 50% stock dividend.

       Summary Compensation Table

            The following table summarizes compensation for services to
       the Corporation in all capacities awarded to, earned by or paid
       to the Corporation's chief executive officer and its two other
       most highly compensated executive officers for the last two
       fiscal years.  No other executive officer of the Corporation met
       the definition of "highly compensated" within the meaning of the
       Securities and Exchange Commission's executive compensation
       disclosure rules. 
        
            The Corporation is required to appoint certain executive
       officers and full-time employees of Thermo Electron as executive
       officers of the Corporation, in accordance with the Thermo
       Electron Corporate Charter. The compensation for these executive
       officers is determined and paid entirely by Thermo Electron. The
       time and effort devoted by these individuals to the Corporation's
       affairs is provided to the Corporation under the Corporate
       Services Agreement between the Corporation and Thermo Electron.
       Accordingly, the compensation for these individuals is not
       reported in the following table. 

       






<TABLE>

<CAPTION>
                                 Summary Compensation Table


                                                        Long Term
                                                        Compensation
                                                        Securities
                                                        Underlying
                                     Annual             Options (No. of
        Name and              Fiscal Compensation       Shares         All Other
        Principal Position    Year   Salary   Bonus     and Company (1)Compensation
                                                                       (2)

        <S>                   <C>    <C>      <C>       <C>      <C>   <C>       <C>
        Earl R. Lewis (3)     1996   $72,000  $64,000   225,000  (TOC) $11,550   (4)

         Chief Executive                                2,000    (TFG)
        Officer
                                                        2,000    (TLT)

                                                        2,000    (TSR)

                              1995   $123,250 $76,500     150    (TMO) $6,750

                                                        7,500    (TBA)

                                                        5,000    (TLZ)


        Robert J. Rosenthal   1996   $135,000 $120,000  112,500  (TOC) $4,500
        (5)
                                                           150   (TMO)
        President and
          Chief Operating                               10,000   (TMQ)
        Officer


                              1995   $119,945 $97,000   15,000   (TMO) $4,500

                                                        2,000    (TBA)



        Kristine A. Langdon   1996   $100,000 $40,000   75,000   (TOC) $5,344

          Vice President                                 5,000   (TMQ)

                              1995   $ 93,000 $35,000    --            $5,198

</TABLE>
                                          


       (1)  Options granted by the Corporation are designated in the
            table as "TOC."  In addition, the named executive officers
            have been granted options to purchase common stock of Thermo
            Electron companies from time to time as part of Thermo
            Electron's stock option program.  Options have been granted
            to the named executive officers during the last two fiscal
            years in the following Thermo Electron companies:  Thermo
            BioAnalysis Corporation (designated in the table as TBA),
            Thermo Electron (designated in the table as TMO) Thermo
            Fibergen Inc. (designated in the table as TFG), ThermoLase
            Corporation (designated in the table as TLZ), ThermoLyte
            Corporation (designated in the table as TLT), ThermoQuest
            Corporation (designated in the table as TMQ) and Thermo
            Sentron Inc. (designated in the table as TSR).

       (2)  Represents the amount of matching contributions made by the
            individual's employer on behalf of named executive officers
            participating in the Thermo Electron 401(k) plan or the

                                       13
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<PAGE>





            Nicolet Retirement Savings Plan.  

       (3)  Mr. Lewis was appointed chief executive officer of the
            Corporation in August 1995 and vice president of Thermo
            Electron in September 1996.  Mr. Lewis was also appointed
            chief operating officer of Thermo Instrument effective
            January 1996, and as such, is responsible for the day-to-day
            operations of Thermo Instrument.  A portion of Mr. Lewis'
            annual cash compensation (salary and bonus) has been
            allocated to and paid by Thermo Instrument and Thermo
            Electron in each of the last two fiscal years for the time
            he devoted to his responsibilities to these companies.  The
            annual cash compensation (salary and bonus) reported in the
            table for Mr. Lewis represents the amount paid by the
            Corporation and all other sources solely for Mr. Lewis'
            services as its chief executive officer.  For calendar 1996
            and 1995, approximately 40% and 85%, respectively, of Mr.
            Lewis' salary and bonus earned in all capacities throughout
            the Thermo Electron organization was paid by the Corporation
            for his services as chief executive officer.   In addition,
            Mr. Lewis has been granted options to purchase shares of the
            common stock of Thermo Electron and certain of its
            subsidiaries other than the Corporation from time to time by
            Thermo Electron or such other subsidiaries.  These options
            are not reported in this table as they were granted as
            compensation for service to other Thermo Electron companies
            in capacities other than in his capacity as the chief
            executive officer of the Corporation.

       (4)  In addition to the matching contribution referred to in
            footnote (2), such amount includes $4,800, which represents
            the amount of compensation attributable to an interest-free
            loan provided to Mr. Lewis pursuant to the Corporation's
            stock holding assistance plan.  See "Relationship with
            Affiliates - Stock Holding Assistance Plan."

       (5)  Dr. Rosenthal was appointed president of the Corporation in
            April 1997.  He was appointed an executive vice president
            and chief operating officer of the Corporation in December
            1996.  Prior to that date, he was a senior vice president of
            the Corporation.

       Stock Options Granted During Fiscal 1996

            The following table sets forth information concerning
       individual grants of stock options made during fiscal 1996 to the
       Corporation's chief executive officer and the other named
       executive officers.  It has not been the Corporation's policy in
       the past to grant stock appreciation rights, and no such rights
       were granted during fiscal 1996.

       






<TABLE>

<CAPTION>

                                   Option Grants in Fiscal 1996





                                                                    Potential Realizable
                                       Percent of                   Value at Assumed
                       Number of       Total                        Annual Rates of Stock
                       Securities      Options      Exercise        Price Appreciation for
                       Underlying      Granted to   Price   Expira- Option Term (2)
                       Options         Employees in Per     tion

        Name           Granted (1)     Fiscal Year  Share   Date    5%          10%
        <S>            <C>      <C>  <C>      <C> <C>     <C>      <C>         <C>

        Earl R. Lewis  225,000 (TOC) 12.1%        $12.00  04/11/08 $2,148,750  $5,773,500
        (3)
                         2,000 (TFG) 0.4%     (4) $10.00  09/12/08 $   15,920     $42,760

                         2,000 (TLT) 0.6%     (4) $10.00  03/11/08 $   15,920     $42,760

                         2,000 (TSR) 0.4%     (4) $14.00  03/11/08 $   22,280     $59,880


        Robert J.      112,500 (TOC) 6.0%         $12.00  04/11/08 $1,074,375  $2,886,750
        Rosenthal
                           150 (TMO) 0.01%    (4) $42.79  05/22/99 $    1,011      $2,124

                        10,000 (TMQ) 0.4%     (4) $13.00  02/08/08 $  103,500    $278,000


        Kristine A.    75,000  (TOC) 4.0%         $12.00  04/11/08 $  716,250  $1,924,500
        Langdon
                        5,000  (TMQ) 0.2%     (4) $13.00  02/08/08 $   51,750  $  139,000

</TABLE>

                                       14
PAGE
<PAGE>






       (1)  All of the options granted during the fiscal year are
            immediately exercisable as of the end of the fiscal year,
            except options to purchase the common stock of ThermoLyte
            Corporation, which are not exercisable until the earlier of
            (i) 90 days after the effective date of the registration of
            that company's common stock under Section 12 of the
            Securities Exchange Act of 1934 (the "Exchange Act") and
            (ii) nine years after the grant date.  In all cases, the
            shares acquired upon exercise are subject to repurchase by
            the granting corporation at the exercise price if the
            optionee ceases to be employed by such corporation or
            another Thermo Electron company. The granting corporation
            may exercise its repurchase rights within six months after
            the termination of the optionee's employment.  For publicly
            traded companies, the repurchase rights generally lapse
            ratably over a five- to ten-year period, depending on the
            option term, which may vary from seven to twelve years,
            provided the optionee continues to be employed by the
            Corporation or another Thermo Electron company.  For
            companies that are not publicly traded, the repurchase
            rights lapse in their entirety on the ninth anniversary of
            the grant date.  Certain options granted as part of Thermo
            Electron's stock option program have three-year terms, and
            the repurchase rights lapse in their entirety on the second
            anniversary of the grant date.  The granting corporation may
            permit the holder of options to exercise options and to
            satisfy tax withholding obligations by surrendering shares
            equal in fair market value to the exercise price or
            withholding obligation. 

       (2)  The amounts shown on this table represent hypothetical gains
            that could be achieved for the respective options if
            exercised at the end of the option term.  These gains are
            based on assumed rates of stock appreciation of 5% and 10%
            compounded annually from the date the respective options
            were granted to their expiration date.  The gains shown are
            net of the option exercise price, but do not include
            deductions for taxes or other expenses associated with the
            exercise.  Actual gains, if any, on stock option exercises
            will depend on the future performance of the common stock of
            the granting corporation, the optionee's continued
            employment through the option period and the date on which
            the options are exercised.

       (3)  Mr. Lewis has been granted options to purchase shares of the
            common stock of Thermo Electron and its subsidiaries other
            than the Corporation.  These options are not reported in the
            table as they were granted as compensation for service to
            other Thermo Electron companies in capacities other than Mr.
            Lewis' capacity as chief executive officer of the
            Corporation.

       (4)  These options were granted under stock option plans
                                       15
PAGE
<PAGE>





            maintained by Thermo Electron companies other than the
            Corporation and accordingly are reported as a percentage of
            total options granted to employees of Thermo Electron and
            its subsidiaries. 

       Stock Options Exercised During Fiscal 1996 and Fiscal Year-End
       Values

            The following table reports certain information regarding
       stock option exercises during fiscal 1996 and outstanding stock
       options held at the end of fiscal 1996 by the Corporation's chief
       executive officer and the other named executive officers. No
       stock appreciation rights were exercised or were outstanding
       during fiscal 1996.

       






<TABLE>

<CAPTION>


        Aggregated Option Exercises In Fiscal 1996
        And Fiscal 1996 Year-End Option Values



                                                        Number of
                                                        Unexercised
                                      Shares            Options at Fiscal     Value of
                                      Acquired          Year-End              Unexercised
                                      on       Value    (Exercisable/         In-the-Money
        Name           Company        Exercise Realized Unexercisable) (1)    Options
        <S>            <C>            <C>      <C>      <C>                 <C>

        Earl R. Lewis  Thermo Optek   --        --       225,000 /0            $0/--
        (2)

                       Thermo         --      --           2,000 /0      $  1,500/--
                       Fibergen

                       ThermoLyte     --      --               0 /2,000       --/$0(5)
                                                                                         (5)
                       Thermo Sentron --      --           2,000 /0            $0/--

        Robert J.      Thermo Optek   --      --         112,500 /0            $0/--
        Rosenthal
                       Thermo         --      --          30,900 /0(3)   $390,976/--
                       Electron                                   

                       Thermo         --      --           2,000 /0        $6,250/--
                       BioAnalysis

                       Thermo         --      --          60,890 /0    $1,064,971/--
                       Instrument

                       ThermoQuest    --      --          10,000 /0            $0/--

                       ThermoSpectra  --      --           2,500 /0        $4,688/--


        Kristine A.    Therm Optek    --      --          75,000 /0            $0/--
        Langdon (4)

                       ThermoQuest    --      --           5,000 /0            $0/--


                       ThermoSpectra  --      --             400/0           $750/--   
</TABLE>



       (1)  All of the options reported outstanding at the end of the
            fiscal year were immediately exercisable as of fiscal
            year-end, except options to purchase the common stock of
            ThermoLyte Corporation, which are not exercisable until the
            earlier of (i) 90 days after the effective date of the
            registration of that company's common stock under Section 12
            of the Exchange Act and (ii) nine years after the grant
            date.  In all cases, the shares acquired upon exercise of
            the options reported in the table are subject to repurchase
            by the granting corporation at the exercise price if the
            optionee ceases to be employed by such corporation or
            another Thermo Electron company.  The granting corporation
            may exercise its repurchase rights within six months after
            the termination of the optionee's employment.  For publicly
            traded companies, the repurchase rights generally lapse
            ratably over a five- to ten-year period, depending on the
            option term, which may vary from seven to twelve years,
            provided that the optionee continues to be employed by the
            Corporation or another Thermo Electron company.  For
            companies that are not publicly traded, the repurchase
            rights generally lapse in their entirety on the ninth
            anniversary of the grant date.  Certain options granted as a
            part of Thermo Electron's stock option program have
            three-year terms, and the repurchase rights lapse in their
            entirety on the second anniversary of the grant date.  The
            granting corporation may permit the holder of such options
            to exercise options and to satisfy tax withholding
            obligations by surrendering shares equal in fair market
            value to the exercise price or withholding obligation. 
        
       (2)  Mr. Lewis also holds other unexercised options to purchase
            common stock of Thermo Electron and its subsidiaries other
            than the Corporation.  These options are not reported here
            as they were granted as compensation for service to other
                                       16
PAGE
<PAGE>





            Thermo Electron companies in capacities other than in his
            capacity as chief executive officer of the Corporation.

       (3)  Options to purchase 15,750 shares of the common stock of
            Thermo Electron granted to Dr. Rosenthal  are subject to the
            same terms as described in footnote (1), except that the
            repurchase rights of the granting corporation generally do
            not lapse until the tenth anniversary of the grant date. In
            the event of the employee's death or involuntary termination
            prior to the tenth anniversary of the grant date, the
            repurchase rights of the granting corporation shall be
            deemed to have lapsed ratably over a five-year period,
            commencing with the fifth anniversary of the grant date. 

       (4)  Ms. Langdon became an employee of the Corporation on April
            1, 1994 and was named president of Thermo Vision
            Corporation, a wholly owned subsidiary of the Corporation,
            in January 1995.  Prior to that date, she had been employed
            by Thermo Electron, and had been granted options to purchase
            shares of common stock of Thermo Electron and its
            subsidiaries other than the Corporation as compensation for
            her service to Thermo Electron.  These options are not
            reported in the table as they were granted as compensation
            for service to other Thermo Electron companies and prior to
            her service to the Corporation.

       (5)  No public market for the shares underlying these options
            existed at fiscal year-end.  Accordingly, no value in excess
            of the exercise price has been attributed to these options.


                   COMMITTEE REPORT ON EXECUTIVE COMPENSATION
        Executive Compensation

            All decisions on compensation for the Corporation's
       executive officers are made by the Human Resources Committee of
       the Board of Directors (the "Committee"). In reviewing and
       establishing total cash compensation and stock-based compensation
       for executives, the Committee follows guidelines established by
       the Human Resources Committees of the Board of Directors of its
       parent corporations, Thermo Electron and Thermo Instrument. The
       executive compensation program presently consists of annual base
       salary ("salary"), short-term incentives in the form of annual
       cash bonuses, and long-term incentives in the form of stock
       options. 
        
            The Committee believes that the compensation of executive
       officers should reflect the scope of their responsibilities, the
       success of the Corporation, and the contributions of each
       executive to that success.  In addition, the Committee believes
       that base salaries should approximate the mid-point of
       competitive salaries derived from market surveys and that
       short-term and long-term incentive compensation should reflect
       the performance of the Corporation and the contributions of each
                                       17
PAGE
<PAGE>





       executive. 
        
            External competitiveness is an important element of the
       Committee's compensation policy. The competitiveness of the
       Corporation's compensation for its executives is assessed by
       comparing it to market data provided by its compensation
       consultant and by participating in annual executive compensation
       surveys, primarily "Project 777," an executive compensation
       survey prepared by Management Compensation Services, a division
       of Hewitt Associates. The majority of firms represented in the
       Project 777 survey are included in the Standard & Poor's 500
       Index, but do not necessarily correspond to the companies
       included in the Corporation's peer group index, the Dow Jones
       Total Return Index for the Diversified Technology Industry Group.
        
            Principles of internal equity are also central to the
       Committee's compensation policies. Compensation considered for
       the Corporation's officers, whether cash or stock-based
       incentives, is also evaluated by comparing it to compensation of
       other executives within the Thermo Electron organization with
       comparable levels of responsibility for comparably sized business
       units. 
        
            The process for determining each of these elements for the
       Corporation's executive officers is outlined below. 
        
            Base Salary
            Base salaries are intended to approximate the mid-point of
       competitive salaries for similar organizations of comparable size
       and complexity to the Corporation. Executive salaries are
       adjusted gradually over time and only as necessary to meet this
       objective. Increases in base salary may be moderated by other
       considerations, such as geographic or regional market data,
       industry trends or internal fairness within the Corporation and
       Thermo Electron. It is the Committee's intention that over time
       the base salaries for the chief executive officer and the other
       named executive officers will approach the mid-point of
       competitive data. The salary increases in 1996 for the chief
       executive officer and the other named executive officers
       generally reflect this practice of gradual increases and
       moderation. 
        
            Cash Bonus

            The Committee establishes a median potential bonus for each
       executive by using the market data on total cash compensation
       from the same executive compensation surveys as used to determine
       salaries. Specifically, the median potential bonus plus the
       salary of an executive officer is approximately equal to the
       mid-point of competitive total cash compensation for a similar
       position and level of responsibility in businesses having
       comparable sales and complexity to the Corporation. The actual
       bonus awarded to an executive officer may range from zero to
       three times the median potential bonus. The value within the
                                       18
PAGE
<PAGE>





       range (the bonus multiplier) is determined at the end of each
       year by the Committee in its discretion. The Committee exercises
       its discretion by evaluating each executive's performance using a
       methodology developed by its parent corporation, Thermo Electron,
       and applied throughout the Thermo Electron organization. The
       methodology incorporates measures of operating returns, designed
       to measure profitability and contributions to shareholder value
       and are measures of corporate and divisional performance that are
       evaluated using graphs developed by Thermo Electron intended to
       reward performance that is perceived as above average and to
       penalize performance that is perceived as below average.  The
       measures of operating returns used in the Committee's
       determinations in calendar 1996 measured return on net assets,
       growth in income, and return on sales, and the Committee's
       determinations also included a subjective evaluation of the
       contributions of each executive that are not captured by
       operating measures but are considered important to the creation
       of long-term value for the Stockholders.  These measures of
       achievements are not financial targets that are met, not met or
       exceeded. The relative weighting of the operating measures and
       subjective evaluation varies among the executives, depending on
       their roles and responsibilities within the organization. 
        
            The bonuses for named executive officers approved by the
       Committee with respect to 1996 performance in each instance
       exceeded the median potential bonus.  

            Stock Option Program
            The primary goal of the Corporation is to excel in the
       creation of long-term value for the Stockholders. The principal
       incentive tool used to achieve this goal is the periodic award to
       key employees of options to purchase common stock of the
       Corporation and other Thermo Electron companies. 
        
            The Committee and management believe that awards of stock
       options to purchase the shares of both the Corporation and other
       companies within the Thermo Electron group of companies
       accomplish many objectives. The grant of options to key employees
       encourages equity ownership in the Corporation, and closely
       aligns management's interests to the interests of all the
       Stockholders. The emphasis on stock options also results in
       management's compensation being closely linked to stock
       performance. In addition, because they are subject to vesting
       periods of varying durations and to forfeiture if the employee
       leaves the Corporation prematurely, stock options are an
       incentive for key employees to remain with the Corporation
       long-term. The Committee believes stock option awards in its
       parent companies, Thermo Electron and Thermo Instrument, and the
       other majority-owned subsidiaries of Thermo Electron and Thermo
       Instrument, are an important tool in providing incentives for
       performance within the entire organization. 
        
            In determining awards, the Committee considers the average

                                       19
PAGE
<PAGE>





       annual value of all options to purchase shares of the Corporation
       and other companies within the Thermo Electron organization that
       vest in the next five years. (Values are established using a
       modified Black-Scholes option pricing model.) As a guideline, the
       Committee strives to maintain the aggregate amount of net awards
       to purchase shares of Common Stock to all employees over a
       five-year period below 12% of the Corporation's outstanding
       common stock, although other factors such as unusual transactions
       and acquisitions and standards for awards of comparably situated
       companies may affect the number of awards granted. 
        
            Awards are not made annually in conjunction with the annual
       review of cash compensation, but are made periodically.  The
       Committee considers total compensation of executives, actual and
       anticipated contributions of each executive (which includes a
       subjective assessment by the Committee of the value of the
       executive's future potential within the organization), as well as
       the value of previously awarded options, as described above, in
       determining option awards.  The option awards made in 1996 to the
       named executive officers with respect to the common stock of the
       majority-owned subsidiaries of the Corporation's parent company,
       Thermo Instrument, were made as part of Thermo Electron's overall
       stock option program and were determined by the human resources
       committee of the board of directors of the granting company using
       a similar analysis.

       Stock Ownership Policies

            During 1996, the Committee established a stock holding
       policy for executive officers of the Corporation.  The stock
       holding policy specifies an appropriate level of ownership of the
       Corporation's Common Stock as a multiple of the officer's
       compensation.  For the chief executive officer, the multiple is
       one times his base salary and reference bonus for the calendar
       year.  For all other officers, the multiple is one times the
       officer's base salary.  The Committee deemed it appropriate to
       permit officers to achieve these ownership levels over a
       three-year period.

            In order to assist officers in complying with the policy,
       the Committee also adopted a stock holding assistance plan under
       which the Corporation is authorized to make interest-free loans
       to officers to enable them to purchase shares of the Common Stock
       in the open market.  The loans are required to be repaid upon the
       earlier of demand or the fifth anniversary of the date of the
       loan, unless otherwise authorized by the Committee.  During 1996,
       Mr. Lewis, the Corporation's chief executive officer, received a
       loan in the principal amount of $194,029.50 under this plan.  See
       "Relationship with Affiliates - Stock Holding Assistance Plan."

            The Committee also adopted a policy requiring its executive
       officers to hold shares of the Corporation's Common Stock
       acquired upon the exercise of stock options granted by the
       Corporation.  Under this policy, executive officers are required
                                       20
PAGE
<PAGE>





       to hold one-half of their net option exercises over a period of
       five years.  The net option exercise is determined by calculating
       the number of shares acquired upon exercise of a stock option,
       after deducting the number of shares that could have been traded
       to exercise the option and the number of shares that could have
       been surrendered to satisfy tax withholding obligations
       attributable to the exercise of the options.

       Policy on Deductibility of Compensation

            The Committee has also considered the application of Section
       162(m) of the Internal Revenue Code to the Corporation's
       compensation practices. Section 162(m) limits the tax deduction
       available to public companies for annual compensation paid to
       senior executives in excess of $1 million unless the compensation
       qualifies as "performance based" or is otherwise exempt under
       Section 162(m). The annual compensation paid to individual
       executives does not approach the $1 million threshold, and it is
       believed that stock incentive plans of the Corporation qualify as
       "performance based." Therefore, the Committee does not believe
       any further action is necessary in order to comply with Section
       162(m). From time to time, the Committee will reexamine the
       Corporation's compensation practices and the effect of Section
       162(m). 

       1996 CEO Compensation
            Cash compensation for Mr. Earl R. Lewis is reviewed by both
       the Committee and the human resources committees of the board of
       directors of Thermo Electron and Thermo Instrument due to his
       responsibilities as the Corporation's chief executive officer, as
       the chief operating officer of Thermo Instrument and as a vice
       president of Thermo Electron.  Each committee evaluates Mr.
       Lewis' performance and proposed compensation using a process
       similar to that used for the other executive officers of the
       Corporation.  At the Thermo Instrument and Thermo Electron level,
       Mr. Lewis is evaluated on his performance related to the
       Corporation, as well as other operating units of Thermo
       Instrument and Thermo Electron for which he is responsible,
       weighted in accordance with the amount of time and effort devoted
       to each operation.  The Corporation's Committee then reviews the
       analysis and determinations of the Thermo Electron committee,
       makes an independent assessment of Mr. Lewis' performance as it
       relates to the Corporation using criteria similar to that used
       for the other executive officers of the Corporation, and then
       agrees to an appropriate allocation of Mr. Lewis' compensation to
       be paid by the Corporation.

            In December 1996, the Committee conducted its review of Mr.
       Lewis' proposed salary for 1997 and bonus for 1996 performance.
       The Committee concurred in the recommendation made by the Thermo
       Electron committee and agreed to an allocation of 40% of Mr.
       Lewis' total cash compensation for 1996 to the Corporation, based
       on his relative responsibilities at the Corporation, Thermo

                                       21
PAGE
<PAGE>





       Instrument and Thermo Electron.

            Awards to Mr. Lewis of options to purchase shares of the
       Corporation's Common Stock are reviewed and determined
       periodically by the Committee using criteria similar to that used
       for the other executive officers of the Corporation.  The
       Committee awarded to Mr. Lewis 225,000 options to purchase shares
       of the Corporation's Common Stock in fiscal 1996.  In addition to
       stock option awards by the Committee, Mr. Lewis may receive
       awards to purchase shares of the Common Stock of Thermo Electron
       or its other majority owned subsidiaries from time to time as
       part of Thermo Electron's stock option program due to his
       position as a chief executive officer of a majority owned
       subsidiary of Thermo Electron.  The stock option awards to Mr.
       Lewis in fiscal 1996 with respect to  shares of the following
       companies were awarded under this program:  Thermo Fibergen Inc.,
       ThermoLyte Corporation and Thermo Sentron Inc.

                          Robert A. McCabe (Chairman)
                                Stephen R. Levy


                         COMPARATIVE PERFORMANCE GRAPH
            The Securities and Exchange Commission requires that the
       Corporation include in this proxy statement a line-graph
       presentation comparing cumulative, five-year shareholder returns
       for the Corporation's Common Stock with a broad-based market
       index and either a nationally recognized industry standard or an
       index of peer companies selected by the Corporation. The
       Corporation's Common Stock has been publicly traded since June 7,
       1996 and, as a result, the following graph commences as of such
       date. The Corporation has compared its performance with the
       American Stock Exchange Market Value Index and the Dow Jones
       Total Return Index for the Diversified Technology Industry Group.
        
          Comparison of Total Return Among Thermo Optek Corporation,
       the American Stock Exchange Market Value Index and the Dow Jones
                              Total Return Index
        for the Diversified Technology Industry Group from June 7, 1996
                             to December 27, 1996.

                             [GRAPH APPEARS HERE]


                                   06/07/96  12/27/96

                            TOC       100       82
                            AMEX      100       97
                           DJ DTC     100      115



            The total return for the Corporation's Common Stock (TOC),
       the American Stock Exchange Market Value Index (AMEX) and the Dow
                                       22
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<PAGE>





       Jones Total Return Index for the Diversified Technology Industry
       Group (DJ DTC) assumes the reinvestment of dividends, although
       dividends have not been declared on the Corporation's Common
       Stock. The American Stock Exchange Market Value Index tracks the
       aggregate performance of equity securities of companies listed on
       the American Stock Exchange. The Corporation's Common Stock is
       traded on the American Stock Exchange under the ticker symbol
       "TOC." 

                         RELATIONSHIP WITH AFFILIATES
            Thermo Electron has adopted a strategy of selling a minority
       interest in subsidiary companies to outside investors as an
       important tool in its future development. As part of this
       strategy, Thermo Electron and certain of its subsidiaries have
       created several privately and publicly held subsidiaries, and
       Thermo Instrument has created the Corporation as a publicly held,
       majority-owned subsidiary.  From time to time, Thermo Electron
       and its subsidiaries will create other majority-owned
       subsidiaries as part of its spinout strategy. (The Corporation
       and such other  majority-owned Thermo Electron subsidiaries are
       hereinafter referred to as the "Thermo Subsidiaries.") 
        
            Thermo Electron and each of the Thermo Subsidiaries
       recognize that the benefits and support that derive from their
       affiliation are essential elements of their individual
       performance. Accordingly, Thermo Electron and each of the Thermo
       Subsidiaries have adopted the Thermo Electron Corporate Charter
       (the "Charter") to define the relationships and delineate the
       nature of such cooperation among themselves. The purpose of the
       Charter is to ensure that (1) all of the companies and their
       stockholders are treated consistently and fairly, (2) the scope
       and nature of the cooperation among the companies, and each
       company's responsibilities, are adequately defined, (3) each
       company has access to the combined resources and financial,
       managerial and technological strengths of the others, and (4)
       Thermo Electron and the Thermo Subsidiaries, in the aggregate,
       are able to obtain the most favorable terms from outside parties.
        
            To achieve these ends, the Charter identifies the general
       principles to be followed by the companies, addresses the role
       and responsibilities of the management of each company, provides
       for the sharing of group resources by the companies and provides
       for centralized administrative, banking and credit services to be
       performed by Thermo Electron. The services provided by Thermo
       Electron include collecting and managing cash generated by
       members, coordinating the access of Thermo Electron and the
       Thermo Subsidiaries (the "Thermo Group") to external financing
       sources, ensuring compliance with external financial covenants
       and internal financial policies, assisting in the formulation of
       long-range planning and providing other banking and credit
       services. Pursuant to the Charter, Thermo Electron may also
       provide guarantees of debt or other obligations of the Thermo
       Subsidiaries or may obtain external financing at the parent level

                                       23
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<PAGE>





       for the benefit of the Thermo Subsidiaries. In certain instances,
       the Thermo Subsidiaries may provide credit support to, or on
       behalf of, the consolidated entity or may obtain financing
       directly from external financing sources. Under the Charter,
       Thermo Electron is responsible for determining that the Thermo
       Group remains in compliance with all covenants imposed by
       external financing sources, including covenants related to
       borrowings of Thermo Electron or other members of the Thermo
       Group, and for apportioning such constraints within the Thermo
       Group. In addition, Thermo Electron establishes certain internal
       policies and procedures applicable to members of the Thermo
       Group. The cost of the services provided by Thermo Electron to
       the Thermo Subsidiaries is covered under existing corporate
       services agreements between Thermo Electron and each of the
       Thermo Subsidiaries. 
        
            The Charter presently provides that it shall continue in
       effect so long as Thermo Electron and at least one Thermo
       Subsidiary participate. The Charter may be amended at any time by
       agreement of the participants. Any Thermo Subsidiary, including
       the Corporation, can withdraw from participation in the Charter
       upon 30 days' prior notice. In addition, Thermo Electron may
       terminate a subsidiary's participation in the Charter in the
       event the subsidiary ceases to be controlled by Thermo Electron
       or ceases to comply with the Charter or the policies and
       procedures applicable to the Thermo Group.  A withdrawal from the
       Charter automatically terminates the corporate services agreement
       and tax allocation agreement (if any) in effect between the
       withdrawing company and Thermo Electron. The withdrawal from
       participation does not terminate outstanding commitments to third
       parties made by the withdrawing company, or by Thermo Electron or
       other members of the Thermo Group, prior to the withdrawal.
       However, a withdrawing company is required to continue to comply
       with all policies and procedures applicable to the Thermo Group
       and to provide certain administrative functions mandated by
       Thermo Electron so long as the withdrawing company is controlled
       by or affiliated with Thermo Electron. 
        
            As provided in the Charter, the Corporation and Thermo
       Electron have entered into a Corporate Services Agreement (the
       "Services Agreement") under which Thermo Electron's corporate
       staff provides certain administrative services, including certain
       legal advice and services, risk management, employee benefit
       administration, tax advice and preparation of tax returns,
       centralized cash management and financial and other services to
       the Corporation. The Corporation was assessed an annual fee equal
       to 1.0% of the Corporation's revenues for these services in
       fiscal 1996.  The fee is reviewed annually and may be changed by
       mutual agreement of the Corporation and Thermo Electron.  During
       fiscal 1996, Thermo Electron assessed the Corporation $3,506,000
       in fees under the Services Agreement. Management believes that
       the charges under the Services Agreement are reasonable and that
       the terms of the Services Agreement are fair to the Corporation.
       For items such as employee benefit plans, insurance coverage and
                                       24
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<PAGE>





       other identifiable costs, Thermo Electron charges the Corporation
       based on charges attributable to the Corporation. The Services
       Agreement automatically renews for successive one-year terms,
       unless canceled by the Corporation upon 30 days' prior notice. In
       addition, the Services Agreement terminates automatically in the
       event the Corporation ceases to be a member of the Thermo Group
       or ceases to be a participant in the Charter. In the event of a
       termination of the Services Agreement, the Corporation will be
       required to pay a termination fee equal to the fee that was paid
       by the Corporation for services under the Services Agreement for
       the nine-month period prior to termination. Following
       termination, Thermo Electron may provide certain administrative
       services on an as-requested basis by the Corporation or as
       required in order to meet the Corporation's obligations under
       Thermo Electron's policies and procedures. Thermo Electron will
       charge the Corporation a fee equal to the market rate for
       comparable services if such services are provided to the
       Corporation following termination.  

            The Corporation has entered into a Tax Allocation Agreement
       with Thermo Electron which outlines the terms under which the
       Corporation will be included in Thermo Electron's consolidated
       Federal and state income tax returns.  Under current law, the
       Corporation will be included in such tax returns so long as
       Thermo Electron owns at least 80% of the outstanding common stock
       of Thermo Instrument and Thermo Instrument owns at least 80% of
       the outstanding Common Stock of the Corporation.  In years in
       which the Corporation has taxable income, it will pay to Thermo
       Electron amounts comparable to the taxes the Corporation would
       have paid if it had filed its own separate company tax returns.
       If Thermo Instrument's equity ownership of the Corporation were
       to drop below 80%, the Company would file its own tax returns.  

            In October 1995, Thermo Electron purchased $10,000,000
       principal amount of the Corporation's 5% Convertible Subordinated
       Debentures due 2000, at par and on terms indentical to those
       offered to unaffiliated investors.

            From time to time, the Corporation may transact business
       with other companies in the Thermo Group.  During fiscal 1996,
       these transactions included the following.

            The Corporation leases office and manufacturing space to
       ThermoSpectra Corporation ("ThermoSpectra"), a majority-owned
       subsidiary of Thermo Instrument, and Nicolet Biomedical Inc.
       ("Nicolet Biomedical"), a wholly owned subsidiary of Thermo
       Electron, pursuant to an arrangement whereby the Corporation
       charges ThermoSpectra and Nicolet Biomedical their allocated
       share of the occupancy expenses of the Corporation's principal
       Wisconsin facility, based on the space ThermoSpectra and Nicolet
       Biomedical utilize.  The Corporation recorded operating lease
       income of $913,000 in 1996 from these affiliates.  These leases
       are effective until December 31, 1998, but may be terminated by
       ThermoSpectra and Nicolet Biomedical upon 30 days' prior notice
                                       25
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<PAGE>





       to the Corporation.

            The Corporation purchases and sells products in the ordinary
       course of business with other subsidiaries of Thermo Electron.
       In 1996, the Corporation sold a total of $28,155,000 of products
       to Thermo Electron subsidiaries and purchased a total of
       $8,680,000 of products from such companies.

            During 1996, the Corporation acquired various businesses
       from Thermo Instrument.  In April 1996, the Corporation acquired
       the Mattson Instruments and Unicam Divisions of Analytical
       Technology, Inc. for $36,558,000 in cash.  In November 1996, the
       Corporation acquired Applied Research Laboratories S.A., V.G.
       Elemental and four related sales offices for an aggregate of
       $55,196,000 in cash and the assumption of $16,593,000 in debt.
       The purchase price paid by the Corporation is subject to a
       post-closing adjustment to be negotiated with the former owner of
       these businesses.

            The Corporation's cash equivalents are invested in a
       repurchase agreement with Thermo Electron, pursuant to which the
       Corporation in effect lends cash to Thermo Electron, which Thermo
       Electron collateralizes with investments principally consisting
       of corporate notes, United States government agency securities,
       money market funds, commercial paper, and other marketable
       securities, in the amount of at least 103% of such obligation.
       The Corporation's funds subject to the repurchase agreement will
       be readily convertible into cash by the Corporation and have an
       original maturity of three months or less.  The repurchase
       agreement earns a rate based on the 90-day Commercial Paper
       Composite Rate plus 25 basis points, set at the beginning of each
       quarter.

            Stock Holding Assistance Plan

            In 1996, the Corporation adopted a stock holding policy
       which requires its executive officers to acquire and hold a
       minimum number of shares of Common Stock.  In order to assist the
       executive officers in complying with the policy, the Corporation
       also adopted a stock holding assistance plan under which it may
       make interest-free loans to certain key employees, including its
       executive officers, to enable such employees to purchase the
       Common Stock in the open market.  During 1996, Mr. Lewis received
       a loan in the principal amount of $194,029.50 under this plan to
       purchase 15,000 shares of the Common Stock.  The loan to Mr.
       Lewis is repayable upon the earlier of demand or the fifth
       anniversary of the date of the loan, unless otherwise authorized
       by the Human Resources Committee of the Corporation's Board of
       Directors.
                                -- PROPOSAL 2--

              PROPOSAL TO ADOPT AN EMPLOYEES' STOCK PURCHASE PLAN

            The Board of Directors has approved an employees' stock
                                       26
PAGE
<PAGE>





       purchase plan (the "Stock Purchase Plan") and reserved 100,000
       shares of the Corporation's Common Stock for issuance thereunder,
       subject to Stockholder approval.  The Board of Directors is
       recommending that the Stockholders approve the Stock Purchase
       Plan and the reservation of shares at this Meeting.  The purpose
       of the Stock Purchase Plan is to grant options to purchase shares
       of Common Stock of the Corporation to eligible employees of the
       Corporation.  The Board of Directors believes that the Stock
       Purchase Plan is an important incentive in attracting and
       retaining key personnel, and motivating individuals to contribute
       significantly to the Corporation's future growth and success, and
       in aligning the long-term interest of these individuals with
       those of the Corporation's Stockholders.  Accordingly, the Board
       of Directors acted to adopt the Stock Purchase Plan subject to
       Stockholder approval.

       Summary of the Stock Purchase Plan

            The full text of the Stock Purchase Plan is set forth in
       Attachment A to this proxy statement.  A description of the
       principal features of the Stock Purchase Plan follows, but it is
       qualified in its entirety by reference to the full text.

            Participation; Administration
            All full-time employees and part-time employees working at
       least 20 hours per week and who have been employed for at least
       six months by the Corporation are eligible to participate in the
       Stock Purchase Plan, unless they own more that 5% of the Common
       Stock of the Corporation.  For purposes of determining the term
       of employment, employees are credited with years of continuous
       employment with Thermo Electron or its other subsidiaries
       immediately prior to joining the Corporation.  Options to
       purchase shares of Common Stock of the Corporation may be granted
       from time to time at the discretion of the Board of Directors,
       which also determines the date upon which such options are
       exercisable.  The number of employees potentially eligible to
       participate in the Stock Purchase Plan is approximately 2,065
       persons.

            Contributions
            A participating employee may purchase stock only through
       payroll deductions. Eligible employees are also permitted to
       participate in the Thermo Electron employees' stock purchase
       plan, which has substantially the same terms as the Stock
       Purchase Plan.  The aggregate amount which may be contributed
       under the Thermo Electron employees' stock purchase plan and the
       Corporation's Stock Purchase Plan may not exceed 10% of the
       employee's gross salary or wages during the year.  The Board of
       Directors may fix the aggregate amount that may be contributed to
       the Stock Purchase Plan each year in its discretion within such
       limitation.  Employees are allowed to decrease,  but not
       increase, the percentage of wages contributed once during the
       Stock Purchase Plan year.  An employee may suspend his or her

                                       27
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<PAGE>





       contributions, but then is not permitted to contribute again for
       the remainder of the Stock Purchase Plan year.

            Terms of Options
            The exercise price is fixed on the grant date and is 95% of
       the fair market value for the Common Stock on such date.  On the
       exercise date, participants may elect to use their accumulated
       payroll deductions to purchase shares at the exercise price.
       Participants must agree not to resell the shares so purchased for
       a period of six months following the exercise date.  The options
       are nontransferable, and except in the case of death of the
       employee, may not be exercised if the employee is not still
       employed by the Corporation at the exercise date.  If an employee
       dies, his or her beneficiary may withdraw the accumulated payroll
       deduction or use such deductions to purchase shares on the
       exercise date.  A participant may elect to discontinue
       participation at any time prior to the exercise date and to have
       his or her accumulated payroll deduction refunded together with
       interest on such amount as fixed by the Board of Directors from
       time to time.

            Shares Subject to the Stock Purchase Plan

            The number of shares that are reserved for issuance under
       the Stock Purchase Plan will be 100,000 shares of the
       Corporation's Common Stock, subject to adjustment for stock
       splits and similar events.  The proceeds received by the
       Corporation from exercise under the Stock Purchase Plan will be
       used for the general purposes of the Corporation.  Shares issued
       under the Stock Purchase Plan may be authorized but unissued or
       shares reacquired by the Corporation and held in its treasury.

            Amendment and Termination
            The Stock Purchase Plan shall remain in full force and
       effect until suspended or discontinued by the Board of Directors.
       The Board of Directors may at any time or times amend or review
       the Stock Purchase Plan for any purpose which may at any time be
       permitted by law, or may at any time terminate the Stock Purchase
       Plan, provided that no amendment that is not approved by the
       Stockholders shall be effective if it would cause the Stock
       Purchase Plan to fail to satisfy the requirements of Rule 16b-3
       (or any successor rule) of the Securities Exchange Act of 1934,
       as amended.  No amendment of the Stock Purchase Plan may
       adversely affect the rights of any recipient of any option
       previously granted without such recipient's consent.

            Effective Date of the Stock Purchase Plan
            The Stock Purchase Plan will become effective as of  
       November 1, 1997, provided that it is approved by the
       Stockholders at this Meeting.

       Federal Income Tax Aspects

            Federal income tax is not imposed upon an employee in the
                                       28
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<PAGE>





       year an option is granted or the year the shares are purchased
       pursuant to the exercise of the option granted under the Stock
       Purchase Plan.  Federal income tax generally is imposed upon an
       employee when he or she sells or otherwise disposes of the shares
       acquired pursuant to the Stock Purchase Plan.  When an employee
       sells or disposes of the shares, if such sale or disposition
       occurs more than two years from the grant date and more than one
       year from the exercise date, then Federal income tax assessed at
       ordinary rates will be imposed upon the amount by which the fair
       market value of the shares on the date of grant or disposition,
       whichever is less, exceeds the amount paid for the shares.  In
       addition, the difference between the amount received by the
       employee at the time of sale and the employee's tax basis in the
       shares, which is equal to the amount paid on exercise of the
       option plus the amount recognized as ordinary income, will be
       recognized as a capital gain or loss.  The Corporation will not
       be allowed a deduction under these circumstances for Federal  
       income tax purposes.  If the employee sells or disposes of the
       shares sooner than two years from the grant date or one year from
       the exercise date, then the employee's entire gain (the
       difference between the fair market value at disposition and the
       amount paid for the shares) will be taxed as ordinary income, and
       the Corporation would be entitled to a deduction equal to that
       amount.

            The closing price per share on the American Stock Exchange
       of the Common Stock on April 25, 1997 was $9.31.

       Recommendation

            The Board of Directors believes that adoption of the Stock
       Purchase Plan and the reservation of shares thereunder is
       important for the Corporation to attract and retain key employees
       and to be able to continue to offer them the opportunity to
       participate in the ownership and growth of the Corporation
       through an employees stock purchase plan.  In addition, the Board
       of Directors believes the Stock Purchase Plan is in the best
       interest of the Corporation and its Stockholders and recommends
       that the Stockholders vote FOR the approval of the Stock Purchase
       Plan and the reservation of 100,000 shares of Common Stock
       thereunder.  Thermo Instrument, which owned of record
       approximately 92% of the outstanding voting stock of the
       Corporation on April 7, 1997, has indicated its intention to vote
       for the proposal.
         
            The affirmative vote of a majority of the Common Stock
       present and entitled to vote on this proposal is required to
       approve the adoption of the Stock Purchase Plan and the
       reservation of 100,000 shares of Common Stock thereunder.  The
       Board of Directors believes that the adoption of the Stock
       Purchase Plan is in the best interest of the Corporation and its
       Stockholders and recommends that you vote FOR approval of the
       Stock Purchase Plan and the reservation of the shares.  If not
       otherwise specified, proxies will be voted FOR approval of this
                                       29
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<PAGE>





       proposal.

                 APPOINTMENT OF INDEPENDENT PUBLIC ACCOUNTANTS
            The Board of Directors has appointed Arthur Andersen LLP as
       independent public accountants for fiscal 1997. Arthur Andersen
       LLP has acted as independent public accountants for the
       Corporation since its inception in 1995. Representatives of that
       firm are expected to be present at the Meeting, will have the
       opportunity to make a statement if they desire to do so and will
       be available to respond to questions. The Board of Directors has
       established an Audit Committee, presently consisting of two
       outside directors, the purpose of which is to review the scope
       and results of the audit. 

                                  OTHER ACTION
            Management is not aware at this time of any other matters
       that will be presented for action at the Meeting. Should any such
       matters be presented, the proxies grant power to the proxy
       holders to vote shares represented by the proxies in the
       discretion of such proxy holders. 

                             STOCKHOLDER PROPOSALS

            Proposals of Stockholders intended to be presented at the
       1998 Annual Meeting of the Stockholders of the Corporation must
       be received by the Corporation for inclusion in the proxy
       statement and form of proxy relating to that meeting no later
       than January 2, 1998. 


























                                       30
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<PAGE>





                             SOLICITATION STATEMENT

            The cost of this solicitation of proxies will be borne by
       the Corporation. Solicitation will be made primarily by mail, but
       regular employees of the Corporation may solicit proxies
       personally, by telephone, facsimile transmission or telegram.
       Brokers, nominees, custodians and fiduciaries are requested to
       forward solicitation materials to obtain voting instructions from
       beneficial owners of stock registered in their names, and the
       Corporation will reimburse such parties for their reasonable
       charges and expenses in connection therewith. 
        
       Franklin, Massachusetts
       April 29, 1997








































                                       31
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<PAGE>





       Attachment AA-34

       THERMO OPTEK CORPORATION

       EMPLOYEES' STOCK PURCHASE PLAN


       1.   Definitions.   As used in this Employees' Stock Purchase
       Plan of Thermo Optek Corporation, the following terms shall have
       the meanings respectively assigned to them below:

            (a)  Base Compensation means annual or annualized base
       compensation, exclusive of  overtime, bonuses, contributions to
       employee benefit plans, or other fringe benefits, sales
       commissions, moving expense reimbursements or other special
       payments.

            (b)  Beneficiary means the person designated as beneficiary
       on the Participant's Membership Agreement or, if no such
       beneficiary is named, the person to whom the Option is
       transferred by will or under the applicable laws of descent and
       distribution.

            (c)  Board means the board of directors of the Company.

            (d)  Code means the Internal Revenue Code of 1986, as
       amended.

            (e)  Company means Thermo Optek Corporation, a  Delaware
       corporation.

            (f)  Company Stock means the common stock, $.01 par value,
       of the Company.

            (g)  Eligible Employee means a person who is eligible under
       the provisions of Section 7 to receive an Option as of a
       particular Grant Date.

            (h)  Enrollment Agreement  means an agreement whereby a
       Participant authorizes the Company to withhold payroll deductions
       from his or her Gross Compensation.

            (i)  Exercise Date means a date not more than one year after
       a Grant Date, as determined by the Board, on which Options must
       be exercised by Eligible Employees.

            (j)  Grant Date means a date specified by the Board on which
       Options are to be granted to Eligible Employees.

            (k)  Gross Compensation means Base Compensation plus sales
       commissions, overtime pay and cash bonuses.

            (1)  Market Value means, as of a particular date, the last
       sale price of the Company Stock if such stock is reported on the
                                       32
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<PAGE>





       American Stock Exchange, or if not so reported, the average of
       bid and asked prices of the Company Stock last quoted by NASDAQ
       in the over-the-counter market on such date, as the case may be.

            (m)  Option means an option to purchase shares of Stock
                 granted under the Plan.

            (n)  Option Shares means shares of Stock purchasable under
                 an Option, which shares may not be transferred by the
                 Participant until at least six months after the
                 Exercise Date.

            (o)  Participant  means an Eligible Employee to whom an
                 Option is granted and who authorizes the Company to
                 withhold payroll deductions by completing an Enrollment
                 Agreement.

            (p)  Plan means this Employees' Stock Purchase Plan of the
                 Company, as amended from time to time.

            (q)  Related Corporation means any corporation which is a
                 parent corporation of the Company, as defined in
                 Section 425(e) of the Code, and any corporation
                 controlled by that parent corporation or the Company.

            (r)  Rule 16b-3 means Rule 16b-3 and any successor rule
                 promulgated under Section 16 of the Securities Exchange
                 Act of 1934, as amended.

            (s)  Section 423 means Section 423 of the Code.

            2.   Purpose of the Plan.   The Plan is intended to
                 encourage ownership of Company Stock by employees of
                 the Company and to provide additional incentive for the
                 employees to promote the success of the business of the
                 Company.  It is intended that the Plan shall be an
                 "employee stock purchase plan" within the meaning of
                 Section 423.

            3.   Term of the Plan.   The Plan shall become effective on
                 November 1, 1997.  No option shall be granted under the
                 Plan after November 2, 2007.

            4.   Administration of the Plan.  The Plan shall be
                 administered by the Board, which annually shall
                 determine whether to grant Options under the Plan,
                 shall specify which dates shall be Grant Dates and
                 Exercise Dates, and shall fix the respective maximum
                 percentages of each Participant's Gross Compensation
                 which may be withheld for the purpose of purchasing
                 shares of Company Stock; provided, that, the maximum
                                          --------
                 aggregate percentage of each Participant's Gross
                 Compensation which may be withheld for the purpose of
                 purchasing shares of stock under this Plan and all
                                       33
PAGE
<PAGE>





                 other employees stock purchase plans (as defined in
                 Section 423(b) of the Code) administered by a Related
                 Corporation and in which Eligible Employees may
                 participate shall not exceed ten percent of the
                 Participant's Gross Compensation.  The Board shall have
                 authority to interpret the Plan, to prescribe, amend
                 and rescind rules and regulations relating to the Plan,
                 to determine the terms of Options granted under the
                 Plan, and to make all other determinations necessary or
                 advisable for the administration of the Plan.

            The Board may appoint a committee, consisting of
       "non-employee directors"  as defined in Rule 16b-3, to administer
       the Plan and may, in its sole and absolute discretion, delegate
       any or all of the functions specified herein regarding
       administration of the Plan to such committee.

            5.   Termination and Amendment of Plan.  The Board may
       terminate or amend the Plan at any time; provided, however, that
                                                ------------------
       no amendment, unless approved by the holders of a majority of the
       issued and outstanding shares of Company Stock shall be effective
       if it would cause the Plan to fail to satisfy the requirements of
       Rule 16b-3.  No termination of or amendment to the Plan may
       adversely affect the rights of a Participant with respect to any
       Option held by the Participant as of the date of such termination
       or amendment.

            6.   Shares of Stock Subject to the Plan.  No more than an
       aggregate of 100,000 shares of Company Stock may be issued or
       delivered pursuant to the exercise of Options granted under the
       Plan, subject to adjustments made in accordance with Section 9.8.
       Option Shares may be either shares of Company Stock which are
       authorized but unissued or shares of Company Stock held by the
       Company in its treasury.  If an Option expires or terminates for
       any reason without having been exercised in full, the unpurchased
       Option Shares shall become available for other Options granted
       under the Plan.  The Company shall, at all times during which
       Options are outstanding, reserve and keep available shares of
       Company Stock sufficient to satisfy such Options, and shall pay
       all fees and expenses incurred by the Company in connection
       therewith.  In the event of any capital change in the outstanding
       Company Stock as contemplated by Section 9.8, the number of
       shares of  Company Stock reserved and kept available by the
       Company shall be appropriately adjusted.

            7.   Persons Eligible to Receive Options.  Each employee of
       the Company shall be granted an Option on each Grant Date on
       which such employee meets all of the following requirements:

            (a)  The employee has completed at least six months of
                 continuous employment for the Company  or a Related
                 Corporation.  Employment shall include any leave of
                 absence for military service, illness or other bona
                 fide purpose which does not exceed the longer of 90
                                       34
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<PAGE>





                 days or the period during which the absent employee's
                 reemployment rights are guaranteed by statute or
                 contract.

            (b)  The employee is customarily employed by the Company for
                 more than  20 hours  per week  and for  more than  five
                 months per calendar year.

            (c)  The employee will not, after grant of the Option, own
                 stock possessing five percent or more of the total
                 combined voting power or value of all classes of stock
                 of the Company or of any Related Corporation.  For
                 purposes of this paragraph (c), the rules of Section
                 425(d) of the Code shall apply in determining the stock
                 ownership of the employee, and stock which the employee
                 may purchase under outstanding options shall be treated
                 as stock owned by the employee.

            (d)  Upon grant of the Option, the employee's rights to
                 purchase stock under all employee stock purchase plans
                 (as defined in Section 423(b) of the Code) of the
                 Company and its Related Corporations will not accrue at
                 a rate which exceeds $25,000 of fair market value of
                 the Stock (determined as of the Grant Date for such
                 Option) for each calendar year in which such Option is
                 outstanding at any time.  The accrual of rights to
                 purchase Stock shall be determined in accordance with
                 Section 423(b) (8) of the Code.

            8.   Dates for Granting Options.  Options shall be granted
       on each date designated by the Board as a Grant Date.

            9.   Terms and Conditions of Options.  

            9.1. General.  All Options granted on a particular Grant
       Date shall comply with the terms and conditions set forth in
       Sections 9.3 through 9.12, and each Option shall be identical
       except as to the number of shares of Company Stock purchasable
       under the Option, which shall be determined in accordance with
       Section 9.2.

            9.2. Number of Shares.  The maximum number of shares of
       Company Stock which a Participant shall be permitted to purchase
       shall be equal to the amount of the Participant's Gross
       Compensation permitted to be withheld for purchasing Company
       Stock during the period running from the Grant Date to the
       Exercise Date, divided by the purchase price determined in
       accordance with Section 9.3.  The number of shares which a
       Participant is permitted to purchase may be further limited by
       the amount of payroll deductions actually withheld as of the
       Exercise Date.

            9.3. Purchase Price.  The purchase price of Option Shares
       shall be 95 percent of the Market Value of Company Stock as of
                                       35
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       the Grant Date.  If the Grant Date shall fall on a Saturday,
       Sunday or other legal holiday, the Market Value shall be
       determined as of the trading day immediately preceding the Grant
       Date.

            9.4. Restrictions on Transfer.  Options may not be
       transferred otherwise than by will or under the laws of descent
       and distribution, or pursuant to a qualified domestic relations
       order.  An Option may not be exercised by anyone other than the
       Participant during the lifetime of the Participant.  Option
       Shares may not be sold or otherwise transferred by the
       Participant until at least six months after the Exercise Date.
       The Company shall have the right to place a legend on all stock
       certificates representing Option Shares setting forth the
       restriction on transferability of such shares.

            9.5. Expiration.  Each Option shall expire at the close of
       business on the Exercise Date or on such earlier date as may
       result from the operation of Section 9.6.

            9.6. Termination of Employment of Participant. If a
       Participant ceases for any reason, voluntary or involuntary
       (other than death or retirement), to be continuously employed by
       the Company or a Related Corporation, his or her Option shall
       immediately expire, and the Participant's accumulated payroll
       deductions shall be returned by the Company with interest
       pursuant to Section 9.12.  For purposes of this Section 9.6, a
       Participant shall be deemed to be employed throughout any leave
       of absence for military service, illness or other bona fide
       purpose which does not exceed the longer of ninety days or the
       period during which the Participant's reemployment rights are
       guaranteed by statute or by contract.  If the Participant does
       not return to active employment prior to the termination of such
       period, his or her employment shall be deemed to have ended on
       the 91st day of such leave of absence.

            9.7  Retirement or Death of Participant.  If a Participant
       retires or dies, the Participant or, in the case of death, his or
       her Beneficiary, shall be entitled to withdraw the Participant's
       accumulated payroll deductions with interest pursuant to Section
       9.12, or to purchase shares on the Exercise Date to the extent
       that the Participant would have been so entitled had he or she
       continued to be employed by the Company.  The number of shares
       purchasable shall be limited by the amount of the participant's
       accumulated payroll deductions as of the date of his or her
       retirement or death.  Accumulated payroll deductions shall be
       applied by the Company toward the purchase of shares unless the
       Participant or Beneficiary withdraws such funds prior to the
       Exercise Date.

            9.8  Capital Changes Affecting the Stock.  In the event
       that, between the Grant Date and the Exercise Date of an Option,
       a stock dividend is paid or becomes payable in respect of Company
       Stock or there occurs a split-up or contraction in the number of
                                       36
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       shares of  Company Stock, the number of shares for which the
       Option may thereafter be exercised and the price to be paid for
       each such share shall be proportionately adjusted.  In the event
       that, after the Grant Date, there occurs a reclassification or
       change of outstanding shares of Company Stock or a consolidation
       or merger of the Company with or into another corporation or a
       sale or conveyance, substantially as a whole, of the property of
       the Company, the Participant shall be entitled on the Exercise
       Date to receive shares of stock or other securities equivalent in
       kind and value to the shares of stock he or she would have held
       if he or she had exercised the Option in full immediately prior
       to such reclassification, change, consolidation, merger, sale or
       conveyance and had continued to hold such shares (together with
       all other shares and securities thereafter issued in respect
       thereof) until the Exercise Date.  In the event that there is to
       occur a recapitalization involving an increase in the par value
       of Company Stock which would result in a par value exceeding the
       exercise price under an outstanding Option, the Company shall
       notify the Participant of such proposed recapitalization
       immediately upon its being recommended by the Board to the
       Company's shareholders, after which the Participant shall have
       the right to exercise his or her Option prior to such
       recapitalization; if the Participant fails to exercise the Option
       prior to recapitalization, the exercise price under the Option
       shall be appropriately adjusted.  In the event that, after the
       Grant Date, there occurs a dissolution or liquidation of the
       Company, except pursuant to a transaction to which Section 425(a)
       of the Code applies, each Option to purchase Company Stock shall
       terminate, but the Participant holding such Option shall have the
       right to exercise his or her Option prior to such dissolution or
       liquidation.

            9.9. Payroll Deductions.  Any Eligible Employee, who wishes
       to authorize payroll deductions for the purchase of Option Shares
       under the Plan, must complete and return to the human resources
       department of the Company prior to the Grant Date an Enrollment
       Agreement indicating the total percentage (which shall be a full
       integer between one and the maximum determined by the Board in
       accordance with Section 4 hereof) of his or her Gross
       Compensation which is to be withheld each pay period.  Prior to
       the Exercise Date, the Participant shall be permitted only once
       to (a) withdraw accumulated payroll deductions, (b) discontinue
       payroll deductions, or (c) decrease, but not increase, the
       percentages of Gross Compensation withheld.  The Participant may
       not recommence payroll deductions at any time prior to the
       Exercise Date.

            9.10.     Exercise of Options.  On the Exercise Date the
       Participant shall be deemed to have exercised his or her Option
       to purchase the maximum number of Option Shares purchasable by
       his or her accumulated payroll deductions, provided that:

            (a)  The number of Option Shares of Company Stock
            purchasable shall not exceed the number of shares the
                                       37
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<PAGE>





            Participant is entitled to purchase pursuant to Section 9.2.

            (b)  If the total number of Option Shares of Company Stock
            which all Participants elect to purchase, together with any
            Option Shares of Company Stock already purchased under the
            Plan, exceeds the total number of shares of Company Stock
            which may be purchased under the Plan pursuant to Section 6,
            the number of shares of Company Stock which each Participant
            is permitted to purchase shall be decreased pro rata based
                                                        --------
            on the Participant's accumulated payroll deductions with
            respect to Company Stock in relation to all accumulated
            payroll deductions currently being withheld under the Plan
            with respect to Company Stock.

            (c)  If the number of Option Shares purchasable includes a
            fraction, such number shall be adjusted to the next smaller
            whole number and the purchase price shall be adjusted
            accordingly.

            (d)  Notwithstanding the foregoing, a Participant may notify
            the Company's human resources department at least 30 days
            prior to an Exercise Date, by completing an
            Enrollment/Change Agreement, that he or she elects not to
            exercise his or her Option and desires to withdraw his or
            her accumulated payroll deductions withheld under the Plan,
            as provided in Section 9.9.

            9.11.     Delivery of Stock.  Within a reasonable time after
       the Exercise Date, the Company shall deliver or cause to be
       delivered to the Participant a certificate or certificates for
       the number of shares purchased by the Participant.  If any law or
       applicable regulation of the Securities and Exchange Commission
       or other body having jurisdiction in the premises shall require
       that the Company or the Participant take any action in connection
       with the shares being purchased under the Option, delivery of the
       certificate or certificates for such shares shall be postponed
       until the necessary action shall have been completed, which
       action shall be taken by the Company at its own expense, without
       unreasonable delay.  The Participant shall have no rights as a
       shareholder in respect of shares for which he or she has not
       received a certificate.

            9.12.     Return of Accumulated Payroll Deductions.  In the
       event that the Participant or the Beneficiary is entitled to the
       return of accumulated payroll deductions, whether by reason of
       voluntary withdrawal, termination of employment, retirement,
       death, or in the event that accumulated payroll deductions exceed
       the price of Option Shares purchased, such amount, together with
       interest thereon at the rate fixed by the Board of Directors
       (which rate for a particular plan year running from Grant Date to
       Exercise Date shall be fixed annually by the Board of Directors
       prior to the commencement of such period), shall be returned
       within a reasonable time by the Company to the Participant or the
       Beneficiary, as the case may be; provided, however,  that
                                        --------  -------
                                       38
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<PAGE>





       interest shall not be paid on any amount returned which is less
       than the purchase price of one Option Share of Company Stock for
       which such payroll deductions were withheld.



















































                                       39
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<PAGE>





                                 FORM OF PROXY

                           THERMO OPTEK CORPORATION

       PROXY FOR ANNUAL MEETING OF STOCKHOLDERS TO BE HELD JUNE 2, 1997

         THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS.

            The undersigned hereby appoints John N. Hatsopoulos, Earl R.
       Lewis and Jonathan W. Painter, or any one of them in the absence
       of the others, as attorneys and proxies of the undersigned, with
       full power of substitution, for and in the name of the
       undersigned, to represent the undersigned at the Annual Meeting
       of the Stockholders of Thermo Optek Corporation, a Delaware
       corporation (the "Company"), to be held on Monday, June 2, 1997,
       at 10:00 a.m. at The Hyatt Regency Hotel, Hilton Head, South
       Carolina, and at any adjournment or postponement thereof, and to
       vote all shares of common stock of the Company standing in the
       name of the undersigned on April 7, 1997, with all of the powers
       the undersigned would possess if personally present at such
       meeting:


           (IMPORTANT - TO BE SIGNED AND DATED ON THE REVERSE SIDE.)


                 Please mark your
       [   x   ]      votes as in this 
                 example.

                                                        FOR    WITHELD

       1   ELECTION OF DIRECTORS OF THE COMPANY (see    [  ]     [  ]
           reverse).
           FOR all nominees listed at right, except
           authority to vote withheld for the
           following nominees: (if any)

           Nominees:  George N. Hatsopoulos, Stephen
           R. Levy, Earl R. Lewis, Robert A. McCabe
           and Arvin H. Smith.


                                                 FOR  AGAINST  ABSTAIN
       2   Approve management proposal to       [  ]    [  ]     [  ]
           adopt the Corporation's employees'
           stock purchase plan and reserve
           100,000 shares of the common stock
           for issuance thereunder.





                                       40
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       3   In their discretion on such other    [  ]    [  ]     [  ]
           matters as may properly come before
           the Meeting.



       The shares represented by this Proxy will be voted "FOR" the
       proposals set forth above if no instruction to the contrary is
       indicated or if no instruction is given.

       Copies of the Notice of  Meeting and of the Proxy Statement have
       been received by the undersigned.

       SIGNATURE(S)_______________________________________   

       DATE_________________

       Note:  This proxy should be dated, signed by the shareholder(s)
       exactly as his or her name appears hereon, and returned promptly
       in the enclosed envelope.  Persons signing in a fiduciary
       capacity should so indicate.  If shares are held by joint tenants
       or as community property, both should sign.



































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