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Color Image Scanner

IP.com Disclosure Number: IPCOM000065485D
Original Publication Date: 1985-Dec-01
Included in the Prior Art Database: 2005-Feb-19

Publishing Venue

IBM

Related People

Authors:
Masuda, K Toyokawa, K [+details]

Abstract

This article describes a color image scanner wherein the envelope of a lamp illuminating a color image document is coated with a mixture of red, green and blue fluorescent material. The blue fluorescent material provides a relatively short persistence, the green fluorescent material produces a relatively long persistence, and the red fluorescent material provides a medium persistence. The reflected light from the color image document is sensed by a photosensor array which is applied with three sample pulses, the timing of which is adjusted to sample the reflected light of the three colors, respectively.