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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549
   FORM 10-K/A (Amendment No. 1)
 (Mark One) þ
    
    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
 For the Fiscal Year Ended February 29, 2004 Commission File No. 0-22183 MEADE INSTRUMENTS CORP. (Exact Name of Registrant as Specified in Its Charter)
   Delaware
(State of Other Jurisdiction of Incorporation or Organization)
    
    95-2988062
(I.R.S. Employer Identification)6001 Oak Canyon, Irvine, California
(Address of principal executive offices)
    
    92618
(Zip Code)
 Registrants telephone number, including area code: (949) 451-1450   Securities registered pursuant to Section 12(b) of the Act: None Securities registered pursuant to Section 12(g) of the Act: Common Stock, $0.01 Par Value Per Share (Title of Class)
 Indicate by check mark whether the Registrant (1) has filed all reports required to be filed
by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or
for such shorter period that the Registrant was required to file such reports), and (2) has been
subject to such filing requirements for the past 90 days. Yes þ  No o Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation
S-K is not contained herein, and will not be contained, to the best of Registrants knowledge in
definitive proxy or information statements incorporated by reference in Part III of this Form 10-K
or any amendment to this Form 10-K. þ As of May 14, 2004, there were 19,988,857 outstanding shares of the Registrants common stock,
par value $0.01 per share (common stock), which is the only class of common stock of the
Registrant. As of August 31, 2003, the aggregate market value of the shares of common stock held by
non-affiliates of the Registrant, computed based on the closing sale price of $3.23 per share as
reported by Nasdaq, was approximately $35.6 million. Indicate by check mark whether the registrant is an accelerated filer (as defined in Exchange
Act Rule 12(b)-2). Yes o No þ Documents Incorporated by Reference Portions of the registrants Proxy Statement for the 2004 Annual Meeting of Stockholders,
which will be filed with the Securities and Exchange Commission not later than 120 days after
February 29, 2004, are incorporated by reference into Part III of this Report.




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TABLE OF CONTENTS  EXPLANATORY NOTEItem 9A. Controls and ProceduresSIGNATURESExhibit 31.1Exhibit 31.2    Table of Contents  
 EXPLANATORY NOTE This Amendment No. 1 on Form 10-K/A is being filed by Meade Instruments Corp. (the Company) as an
amendment to our Annual Report on Form 10-K for the fiscal year ended February 29, 2004 to: 1)
amend and restate in its entirety Item 9A of the Form 10-K, and 2) amend the signatures page. 
 Item 9A.Controls and Procedures As of the end of the period covered by this report, the Companys chief executive officer and
chief financial officer have evaluated the effectiveness of the Companys disclosure controls and
procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act).
These disclosure controls and procedures are designed to ensure that the information required to be
disclosed by the Company in the reports it files under the Exchange Act is gathered, analyzed and
disclosed with adequate timeliness, accuracy and completeness. The Companys chief executive officer and chief financial officer concluded, based on their
evaluation, that the Companys disclosure controls and procedures are effective for the Company. No change in the Companys internal control over financial reporting occurred during the last
fiscal quarter that has materially affected, or is reasonably likely to materially affect, the
Companys internal control over financial reporting.




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SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto
duly authorized. Dated: March 16, 2005
    MEADE INSTRUMENTS CORP.By:
    /s/ STEVEN G. MURDOCKSteven G. MurdockPresident, Chief Executive Officer
and Secretary Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been
signed below by the following persons on behalf of the registrant and in the capacities and on the
dates indicated. Signature
    
    Title
    
    Date/s/ Steven G. Murdock

Steven G. Murdock
    
    Director, President, Chief Executive Officer
and Secretary
(Principal Executive Officer)
    
    March 16, 2005/s/ Brent W. Christensen

Brent W. Christensen
    
    Senior Vice President  Finance and
Chief Financial Officer
(Principal Financial and Accounting Officer)
    
    March 16, 2005/s/ Harry L. Casari

Harry L. Casari
    
    Director and Chairman of the Board
    
    March 16, 2005/s/ Timothy C. McQuay

Timothy C. McQuay
    
    Director
    
    March 16, 2005/s/ Michael P. Hoopis

Michael P. Hoopis
    
    Director
    
    March 16, 2005/s/ Vernon L. Fotheringham

Vernon L. Fotheringham
    
    Director
    
    March 16, 2005