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Time Multiplexed Two Beam Scanner

IP.com Disclosure Number: IPCOM000048641D
Original Publication Date: 1982-Feb-01
Included in the Prior Art Database: 2005-Feb-09

Publishing Venue

IBM

Related People

Authors:
Broockman, EC [+details]

Abstract

This article describes a holographic scanner in which the beams produce by two dissimilar lasers are time multiplexed before reaching the halographic disc. The spatial position of a scan pattern produced by a rotating holographic disc is a function of the holographic recordings and of the frequency of the laser beam which impinges on the disc. Where time multiplexed red and blue laser beans are used with a single rotating holographic disc, the patterns produced by the two lasers will be slightly shifted relative to one another to provide one extremely dense "superpattern".