Cognex Corporation Announces First Quarter Earnings Release Date and Conference Call

NATICK, Mass.--April 7, 2004--Cognex Corporation will release earnings for the first quarter of 2004 on Tuesday, April 20, 2004, after the market closes and will host a conference call at 5:30 p.m. eastern time that same day. The telephone number for the live call is 800-770-5589 (or 973-935-2039 if outside the United States). A replay will begin at approximately 7:30 p.m. eastern time on Tuesday, April 20, 2004 and will run continuously for 72 hours. The telephone number for the replay is 877-519-4471 (or 973-341-3080 if outside the United States) and the access code is 4677951.

Internet users can listen to a real-time audio broadcast of the conference call as well as an archive of the call on Cognex's website at http://www.cognex.com/investor/default.asp.

About Cognex Corporation

Cognex Corporation designs, develops, manufactures, and markets machine vision systems, or computers that can "see." Cognex is the world's leader in the machine vision industry, having shipped more than 200,000 vision systems, representing over $1.5 billion in cumulative revenue, since the company's founding in 1981. Cognex's Modular Vision Systems Division, headquartered in Natick, Massachusetts, specializes in machine vision systems that are used for automating the manufacture of a wide range of discrete items and for assuring their quality. Cognex's Surface Inspection Systems Division, headquartered in Alameda, California, specializes in machine vision systems that are used for inspecting the surfaces of products manufactured in a continuous fashion, such as metals, papers and plastics. In addition to its corporate headquarters in Natick, Massachusetts, Cognex also has regional offices located throughout North America, Japan, Europe, and Southeast Asia. Visit Cognex on-line at http://www.cognex.com.