Newport Cortporation
 

PROSPECTUS SUPPLEMENT NO. 1
(To Prospectus Dated April 25, 2007)
  Filed Pursuant to Rule 424(b)(3)
Registration No. 333-142362
NEWPORT CORPORATION
$175,000,000
2.50% Convertible Subordinated Notes due 2012 and
Common Stock Issuable upon Conversion of the Notes
     This prospectus supplement supplements information contained in that certain prospectus dated April 25, 2007 of Newport Corporation (the “Company”), relating to the offer and sale from time to time of up to $175,000,000 of the Company’s 2.50% Convertible Subordinated Notes due 2012, or the notes, and 7,277,567 shares of the Company’s outstanding common stock that are issuable upon conversion of the notes, which are held by certain securityholders named in the prospectus under the section entitled “Selling Securityholders”. This prospectus supplement is not complete without, and may not be delivered or utilized except in connection with, the prospectus, including any amendments or supplements thereto.
     The following table amends and supplements the information set forth in the prospectus under the caption “Selling Securityholders” with respect to the selling securityholders named below and the respective notes and shares of common stock beneficially owned by such selling securityholders that may be offered pursuant to the prospectus:
                                         
                    Shares of           Shares of
    Principal           Common           Common
    Amount of           Stock   Conversion   Stock
    Notes           Beneficially   Shares of   Beneficially
    Beneficially   Percentage   Owned Prior to the   Common   Owned After
Name of   Owned and   of Notes   Offering   Stock Offered   Completion of
Selling Securityholder   Offered   Outstanding   (1)(2)   (2)   the Offering
Absolute Strategies Fund, Forum Funds Trust
  $ 350,000       *       14,555       14,555        
Highbridge Convertible Arbitrage Master Fund, LP
  $ 1,480,000       *       61,547       61,547        
Highbridge International LLC
  $ 6,520,000       3.73 %     271,141       271,141        
Mohican VCA Master Fund, Ltd.
  $ 2,900,000       1.66 %     120,599       120,599        
Peoples Benefit Life Insurance Company Teamsters
  $ 2,700,000       1.54 %     112,282       112,282        
Pioneer High Yield VCT Portfolio
  $ 500,000       *       20,793       20,793        
Polygon Global Opportunities Master Fund
  $ 13,000,000       7.43 %     540,619       540,619        
Redbourn Partners Ltd.
  $ 7,000,000       4.0 %     291,102       291,102        

  *   Less than 1%
 
  (1)   Includes shares of common stock issuable upon conversion of the notes.
 
  (2)   Assumes a conversion rate of 41.5861 shares per $1,000 principal amount of notes and a cash payment in lieu of any fractional interest.
 
The date of this prospectus supplement is May 18, 2007.