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Correction of Astigmatism for Off Axis Reconstruction Beam Holographic Deflector

IP.com Disclosure Number: IPCOM000051636D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue

IBM

Related People

Authors:
Dickson, LD [+details]

Abstract

This article describes the use of a converging reconstruction beam for correcting scan spot astigmatism which is produced where a rotating holographic deflector disc is illuminated with a tilted, collimated beam.