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Effective Automatic Aperture for Room Light C:CD Scanner Camera

IP.com Disclosure Number: IPCOM000045359D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-06

Publishing Venue

IBM

Related People

Authors:
Giordano, FP [+details]

Abstract

A photodetector is placed in proximity to a CCD (charge-coupled device) scanner array to monitor the incoming light intensity which would be seen by the CCD array during scanning. This arrangement provides an automatic aperturing for the CCD scanning array so as to compensate for variation in room light intensity.