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                                                                   EXHIBIT 10.51

                              TRANSITION AGREEMENT



         This Transition Agreement ("Transition Agreement"), is entered into
this 18th day of April 2003, by and between John C. Diebel ("Executive"), and
Meade Instruments Corp. (the "Company").

         WHEREAS, Executive has been employed as Chairman and Chief Executive
Officer of the Company, pursuant to an Employment Agreement entered into as of
March 1, 2002 (the "Employment Agreement"); and

         WHEREAS, Executive and the Company have mutually agreed to terminate
their employment relationship upon the terms set forth herein;

         NOW, THEREFORE, in consideration of the covenants undertaken in this
Transition Agreement, Executive and the Company agree as follows:

         I. TRANSITION AND RESIGNATION. Executive hereby resigns (i) as an
officer of the Company and any of its affiliated entities effective May 31,
2003, (ii) as Chairman of the Board of Directors (but Executive is not resigning
his position as a director of the Company) effective May 31, 2003, and (iii) as
an employee, and in any other capacity with the Company and any of its
affiliated entities (other than as a director of the Company), effective July
31, 2003. Hereinafter, July 31, 2003 shall be referred to as the "Separation
Date." The Company hereby accepts such resignations.

         II. TERMINATION OF EMPLOYMENT AGREEMENT. The Employment Agreement shall
terminate as of May 31, 2003, provided, however, that notwithstanding anything
to the contrary in this Transition Agreement, Sections 8 (Confidential
Information), 9 (Inventions and Patents), 10 (Non-Competition), 11
(Non-Solicitation of Customers), 12 (Non-Interference with Employees), 13
(Assistance in Patent Applications) and 14 (Indemnity) of the Employment
Agreement, which are incorporated herein by reference, shall continue to apply
in accordance with their terms. All payments due to Executive from the Company,
whether or not earned prior to May 31, 2003 under the Employment Agreement or
any other compensation, benefit, employment, incentive or related plan or
agreement (with the exception of the Meade Instruments Corp. 1997 Stock
Incentive Plan, as amended, which benefits shall remain in effect in accordance
with the terms set forth in such Plan), shall be determined under this
Transition Agreement, and no payments shall be made under the Employment
Agreement or any such other plan or agreement, except as provided herein. With
respect to the 1997 Stock Incentive Plan, Executive and the Company hereby agree
that all vesting of Executive's stock options under the plan shall cease on July
31, 2003 and Executive's right to exercise such options shall terminate on
October 31, 2003; provided, however, that in the event of Executive's death or
disability prior to July 31, 2003, Executive's estate shall, in accordance with
the plan, have one year after such date to exercise any then vested options.
Notwithstanding anything herein to the contrary, the Company shall continue to
reimburse Executive (in a manner consistent with the Company's existing expense
reimbursement policies) for unreimbursed out of pocket expenses incurred by
Executive through May 31, 2003. Nothing in this Agreement shall effect
Executive's rights to his Company 401(k) account.


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         III. TRANSITION PERIOD. For each of the months April and May 2003, the
Company shall pay to Executive a salary of $41,666.67 in the Company's regular
payroll cycles. Executive agrees and acknowledges that payment to him of the
amounts referenced herein constitutes full satisfaction of any and all payments
due to Executive with respect to his employment with the Company through and
including May 31, 2003, including any accrued vacation. Company further hereby
engages Executive as an employee special advisor from June 1, 2003, through the
Separation Date. As full satisfaction for Executive's services from June 1,
2003, through the Separation Date, the Company shall (i) pay to Executive the
sum of $20,833.34 per month, less standard tax withholdings and authorized
deductions, and (ii) provide medical insurance for Executive and his spouse
under the Company's medical plan through July 31, 2003, under the same terms as
currently provided to Executive and his spouse. From the date hereof until the
Separation Date, Executive shall cooperate with the Company in the transition of
his duties and business contacts as reasonably requested by the Company. Through
May 31, 2003, Executive will continue to sign all necessary and appropriate
documents on behalf of the Company, including, but not limited to, board
resolutions, financial reports and/or Securities and Exchange Commission filings
by the Company consistent with the exercise of reasonable judgment and past
practices. On the date hereof, the Company shall enter into a Registration
Rights Agreement with Executive in the form attached hereto as Exhibit A.

         IV. CONSULTING SERVICES.

                  A. SERVICES. From and after the Separation Date through May
31, 2004 (the "Consulting Period"), Executive agrees to make himself reasonably
available to the Company's Board of Directors and its senior management to
consult on business and operational matters as reasonably requested by such
persons, subject to Executive's prior commitments or obligations. Executive
shall, if requested, provide such services to the Company at the Company's
headquarters, and in such event, the Company shall make reasonable office space
available to Executive at such location. As full satisfaction for Executive's
services during the Consulting Period, the Company shall pay to Executive the
sum of $20,833.34 per month during the Consulting Period regardless of whether
any services are actually performed. Executive hereby waives any fees (whether
cash or equity) that would otherwise be payable to Executive during the
Consulting Period for Executive's service as a non-employee director on the
Company's Board of Directors.

                  B. INDEPENDENT CONTRACTOR STATUS. Executive acknowledges that
Executive is being engaged by the Company on an independent contractor basis
during the Consulting Period. Under no circumstances shall Executive look to the
Company as Executive's employer, or as a partner, agent or principal during such
period. Except as expressly provided in this Transition Agreement, Executive
shall not be entitled to any benefits accorded to the Company's employees,
including, without limitation, worker's compensation, disability insurance,
vacation, sick pay, or participation in any of the Company's benefit plans such
as its Employee Stock Ownership Plan or 401k Plan. No compensation to be paid to
Executive for performing the services contemplated by Section IV.A shall be
subject to any withholding or deductions provided by local, state or federal
law, which shall be the sole responsibility of Executive.


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         V. BENEFIT CONTINUATION. For a period of sixty (60) months following
the Separation Date or until Executive obtains commensurate medical coverage
through other employment, whichever is sooner, the Company shall pay for
Executive's COBRA premium for Executive and his spouse to continue to receive
medical insurance coverage at no cost to Executive and at a level commensurate
with the coverage provided to Executive and his spouse as of the Separation
Date. In the event that COBRA is not available to Executive, the Company shall
nevertheless provide insurance to Executive commensurate with the coverage
provided to Executive and his spouse as of the Separation Date. Separate from
and in addition to the payment described in the foregoing sentences, after
January 1, but prior to January 15 of each of 2004 through 2009, the Company
shall make cash payments to Executive of 100% of the COBRA premiums (or
insurance premiums paid in the event COBRA is not available) paid by the Company
on behalf of Executive pursuant to this Section V during the prior calendar
year.

         VI. MUTUAL RELEASE.

                  A. Except for (i) those obligations created by or arising out
of this Transition Agreement, (ii) Executive's existing benefits under the Meade
Instruments Corp. 1997 Stock Incentive Plan, as amended (which benefits shall
remain in effect as specified in Section II hereof), and (iii) the obligations
of the Company in favor of Executive under the Company's Certificate of
Incorporation, Bylaws or pursuant to that certain Indemnity Agreement, dated
March 1, 1998, between Executive and the Company (the "Indemnity Agreement"),
Executive on behalf of himself, his descendants, dependents, heirs, executors,
administrators, assigns, and successors, and each of them, hereby covenants not
to sue and fully releases and discharges the Company, and its parents,
subsidiaries and affiliates, past and present, and each of them, as well as its
and their trustees, directors, officers, agents, attorneys, insurers, employees,
stockholders, representatives, assigns, and successors, past and present, and
each of them, hereinafter together and collectively referred to as "the Company
Releasees," with respect to and from any and all claims, wages, demands, rights,
liens, agreements, contracts, covenants, actions, suits, causes of action,
obligations, debts, costs, expenses, attorneys' fees, damages, judgments, orders
and liabilities of whatever kind or nature in law, equity or otherwise, whether
now known or unknown, which he now owns or holds or he has at any time
heretofore owned or held or may in the future hold as against said Company
Releasees, arising out of or in any way connected with his service as an
officer, director, or employee of any of the Company Releasees, his separation
from his position as an officer, director, and employee of any of the Company
Releasees, or any other transactions, occurrences, acts or omissions or any
loss, damage or injury whatsoever, known or unknown, suspected or unsuspected,
resulting from any act or omission by or on the part of said Company Releasees,
or any of them, committed or omitted prior to the date of this Transition
Agreement including, without limiting the generality of the foregoing, any claim
under Title VII of the Civil Rights Act of 1964, the Americans with Disabilities
Act, the Family and Medical Leave Act of 1993, the California Fair Employment
and Housing Act, the California Family Rights Act, or any claim for severance
pay, bonus, sick leave, holiday pay, vacation pay, life insurance, health or
medical insurance or any other fringe benefit, workers' compensation or
disability.

                  B. Except for those obligations created by or arising out of
this Transition Agreement, the Company on behalf of itself, its directors,
officers, subsidiaries, assigns, and successors, and each of them, hereby
covenants not to sue and fully releases and discharges Executive, his
descendants, dependents, heirs, executors, administrators, assigns and
successors, past and present, and each of them, as well as their trustees,
directors, officers, agents, attorneys, insurers, employees, stockholders and

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representatives from any and all claims, wages, demands, rights, liens,
agreements, contracts, covenants, actions, suits, causes of action, obligations,
debts, costs, expenses, attorneys' fees, damages, judgments, orders and
liabilities of whatever kind or nature in law, equity or otherwise, whether now
known or unknown, which it now owns or holds or it has at any time heretofore
owned or held or may in the future hold as against Executive, arising out of or
in any way connected with his service as an officer, director, or employee of
the Company or any of its subsidiaries, his separation from his position as an
officer, director, and employee of the Company or any of its subsidiaries, or
any other transactions, occurrences, acts or omissions or any loss, damage or
injury whatsoever, known or unknown, suspected or unsuspected, resulting from
any act or omission by or on the part of Executive, committed or omitted prior
to the date of this Transition Agreement and in any way related to the Company.

                  C. It is the intention of Company and Executive in executing
this instrument that the same shall be effective as a bar to each and every
claim, demand and cause of action hereinabove specified. In furtherance of this
intention, the Company and Executive each hereby expressly waives any and all
rights and benefits conferred upon such party by the provisions of SECTION 1542
OF THE CALIFORNIA CIVIL CODE and expressly consents that this Transition
Agreement shall be given full force and effect according to each and all of its
express terms and provisions, including those related to unknown and unsuspected
claims, demands and causes of action, if any, as well as those relating to any
other claims, demands and causes of action hereinabove specified. SECTION 1542
provides:

         "A GENERAL RELEASE DOES NOT EXTEND TO CLAIMS WHICH THE CREDITOR DOES
NOT KNOW OR SUSPECT TO EXIST IN HIS FAVOR AT THE TIME OF EXECUTING THE RELEASE,
WHICH IF KNOWN BY HIM MUST HAVE MATERIALLY AFFECTED HIS SETTLEMENT WITH THE
DEBTOR."

         The Company and Executive each acknowledges that such party understands
the significance and consequence of such release and such specific waiver of
SECTION 1542.

                  D. In addition (i) Executive agrees that he shall not directly
or indirectly, make or ratify any statement, public or private, oral or written,
to any person that disparages, either professionally or personally, the Company
or its subsidiaries and affiliates, past and present, and each of them, as well
as its and their directors, officers and employees, and each of them and (ii)
the Company agrees that it shall not directly or indirectly, make or ratify any
statement, public or private, oral or written, to any person that disparages
Executive, either professionally or personally. The Company shall have no right
to offset payments otherwise required under this Agreement in the event of a
breach of Executive's undertakings in this paragraph but the Company shall in
such event be permitted to seek specific performance and any other remedies
available to it, including recovery of any damages incurred by it as a result of
such breach.

                  E. The Company expressly acknowledges that the provisions of
the Indemnity Agreement, including Section 8 thereof, and the provisions of
Section 14 of the Employment Agreement continue to apply to Executive.
Accordingly, the Company covenants and agrees that as long as Executive shall
continue to serve as a director and/or officer of the Company and thereafter so
long as Executive shall be subject to any possible Proceeding, the Company,
subject to the penultimate sentence of this Section VI.E, shall promptly obtain
and maintain in full force and effect directors' and officers' liability


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insurance ("D&O Insurance") in reasonable amounts from established and reputable
insurers. In all D&O Insurance policies, Executive shall be provided the same
rights and benefits as are accorded to the most favorably insured of the
Company's directors and officers. Notwithstanding anything in this Section VI.E,
the Company shall have no obligation to obtain or maintain D&O Insurance if the
Company determines in good faith that insurance is not reasonably available, the
premium costs for insurance are disproportionate to the amount of coverage
provided or the coverage provided by insurance is so limited by exclusions that
it provides an insufficient benefit. For purposes of this Section VI.E, the term
"Proceeding" shall include any threatened, pending or completed action, suit or
proceeding, whether brought by or in the name of the Company or otherwise and
whether of a civil, criminal or administrative or investigative nature, by
reason of the fact that Executive is or was a director and/or officer of the
Company, or is or was serving at the request of the Company as a director,
officer, employee or agent of another enterprise, whether or not he is serving
in such capacity at the time any liability or expense is incurred for which
indemnification or reimbursement is to be provided under the Indemnity
Agreement.

         VII. MISCELLANEOUS

                  A. SUCCESSORS.

                           1. This Transition Agreement is personal to Executive
                  and shall not, without the prior written consent of the
                  Company, be assignable by Executive.

                           2. This Transition Agreement shall inure to the
                  benefit of and be binding upon the Company and its successors
                  and assigns and any such successor or assignee shall be deemed
                  substituted for the Company under the terms of this Transition
                  Agreement for all purposes. As used herein, "successor" and
                  "assignee" shall include any person, firm, corporation or
                  other business entity which at any time, whether by purchase,
                  merger or otherwise, directly or indirectly acquires the stock
                  of the Company or to which the Company assigns this Transition
                  Agreement by operation of law or otherwise.

                  B. WAIVER. No waiver of any breach of any term or provision of
this Transition Agreement shall be construed to be, nor shall be, a waiver of
any other breach of this Transition Agreement. No waiver shall be binding unless
in writing and signed by the party waiving the breach.

                  C. MODIFICATION. This Transition Agreement may not be amended
or modified other than by a written agreement executed by Executive and the
President of the Company.

                  D. COMPLETE AGREEMENT. This Transition Agreement (and the
exhibit hereto) constitutes and contains the entire agreement and final
understanding concerning Executive's employment relationship with the Company
and the other subject matters addressed herein between the parties, and
supersedes and replaces all prior negotiations and all agreements proposed or
otherwise, whether written or oral, concerning the subject matters hereof;


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provided however that nothing herein shall limit or otherwise modify the
indemnification obligations of the Company in favor of Executive under the
Company's Certificate of Incorporation, Bylaws or the Indemnity Agreement.
Except as contained in the foregoing proviso, any representation, promise or
agreement not specifically included in this Transition Agreement shall not be
binding upon or enforceable against either party. This is an integrated
agreement.

                  E. LITIGATION AND INVESTIGATION ASSISTANCE. Executive agrees
to cooperate to the extent reasonably requested in the Company's defense against
any threatened or pending litigation or in any investigation or proceeding by
any governmental agency or body that relates to any events or actions which
occurred during the term of Executive's employment. To the extent the Company
requests Executive's assistance in such matters at any time after the Consulting
Period, Executive shall be compensated by the Company at a mutually agreed upon
hourly rate. The Company shall reimburse Executive for all reasonable, out of
pocket expenses incurred by Executive in fulfilling his obligations under this
Section VII.E. From and after the Separation Date, until the first anniversary
of the Separation Date, except as reasonably approved by the Company or as
required by law, Executive shall not comment upon any (i) currently threatened
or pending litigation (including investigations or arbitrations) and related
threatened or pending litigation arising after the date hereof involving the
Company or any of its affiliates or (ii) threatened or pending government
investigation involving the Company or any of its affiliates.

                  F. SEVERABILITY. If any provision of this Transition Agreement
or the application thereof is held invalid, the invalidity shall not affect
other provisions or applications of the Transition Agreement which can be given
effect without the invalid provisions or applications and to this end the
provisions of this Transition Agreement are declared to be severable.

                  G. SPECIFIC PERFORMANCE. It might be impossible to measure in
money the damage to a party if another party breaches this Transition Agreement.
If any such failure occurs, the party damaged might not have an adequate remedy
at law or in damages. Therefore, each party consents to the issuance of an
injunction or other appropriate relief, and the enforcement of other equitable
remedies, against it to compel performance of this Transition Agreement.

                  H. CHOICE OF LAW. This Transition Agreement shall be deemed to
have been executed and delivered within the State of California, and the rights
and obligations of the parties hereunder shall be construed and enforced in
accordance with, and governed by, the laws of the State of California without
regard to principles of conflict of laws.

                  I. COOPERATION IN DRAFTING. Each party has cooperated in the
drafting and preparation of this Transition Agreement. Hence, in any
construction to be made of this Transition Agreement, the same shall not be
construed against any party on the basis that the party was the drafter.

                  J. COUNTERPARTS. This Transition Agreement may be executed in
counterparts, and each counterpart, when executed, shall have the efficacy of a
signed original. Photographic copies of such signed counterparts may be used in
lieu of the originals for any purpose.


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                  K. ARBITRATION. Any controversy arising out of or relating to
this Transition Agreement, its enforcement or interpretation, or because of an
alleged breach, default, or misrepresentation in connection with any of its
provisions, shall be submitted to final and binding arbitration, to be held in
Orange County, California in accordance with California Civil Procedure Code
ss.ss. 1282-1284.2, provided, however, that provisional injunctive relief may,
but need not, be sought in a court of law while arbitration proceedings are
pending, and any provisional injunctive relief granted by such court shall
remain effective until the matter is finally determined by the Arbitrator. In
the event either party institutes arbitration under this Transition Agreement,
the party prevailing in any such proceeding shall be entitled, in addition to
all other relief, to reasonable attorneys' fees relating to such arbitration.
The non-prevailing party shall be responsible for all costs of the arbitration,
including but not limited to, the arbitration fees, court reporter fees, etc.

                  L. HEADINGS. The section headings contained in this Agreement
are inserted for convenience only and shall not affect in any way the meaning or
interpretation of this Agreement.

                         [SIGNATURES ON FOLLOWING PAGE]




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                  I have read the foregoing Transition Agreement and I accept
and agree to the provisions it contains and hereby execute it voluntarily with
full understanding of its consequences.

             EXECUTED this 18th day of April 2003, at Orange County, California.

                                      "EXECUTIVE"


                                      /S/ JOHN C. DIEBEL
                                      ------------------------------------
                                      JOHN C. DIEBEL



             EXECUTED this 18th day of April 2003, at Orange County, California.

                                      "COMPANY"


                                      MEADE INSTRUMENTS CORP.


                                      /S/ STEVEN G. MURDOCK
                                      ------------------------------------
                                      By STEVEN G. MURDOCK
                                      Its: PRESIDENT AND CHIEF OPERATING OFFICER





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                                   EXHIBIT A

                          REGISTRATION RIGHTS AGREEMENT

                                [EXHIBIT OMITTED]





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