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IMPROVED COMPENSATOR FOR COS 4TH CORRECTION IN CENTER REGISTERED, REDUCTION-/ENLARGEMENT OPTICS

IP.com Disclosure Number: IPCOM000027012D
Original Publication Date: 1994-Dec-31
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

Of the factors affecting relative illumination at an image plane, the most well known is the cosine (cos) variation caused by the projection lens wherein the illumination at the image plane is proportional to the COS-