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COLOR COPY WITH SINGLE MONOCHROME CCD

IP.com Disclosure Number: IPCOM000024680D
Original Publication Date: 1981-Aug-31
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 51K

Publishing Venue

Xerox Disclosure Journal

Abstract

Present methods of color copying using Charge Coupled Devices (CCD's) typically involve use of multiple or specially designed CCD's. Since the art of making good CCD's has considerable room for growth, it is the purpose of this proposal to shift the burden of alignment, correction, and matching from the CCD to a more mature technology, namely, the illumination system.

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XEROX DISCLOSURE JOURNAL

COLOR COPY WITH SINGLE MONOCHROME CCD Richard H. Tuhro

Proposed Classification
U.S. C1. 358/212

Int. C1. H04n

DOCUMENT

d

I

Present methods of color copying using Charge Coupled Devices (CCD's) typically involve use of multiple or specially designed CCD's. Since the art of making good CCD's has considerable room for growth, it is the purpose of this proposal to shift the burden of alignment, correction, and matching from the CCD to a more mature technology, namely, the illumination system.

Referring to the figure, multiple light sources 1, 2, 3 .. N, each having a known and different color, are used. Light sources 1, 2, 3, .. N are operated in a sequence with CCD integration taking place during illumination and CCD read-out between sequences. As a result, each CCD integration is made with a different color. If strobe flashes are used, the operation can proceed at a normal rate with color separation at the output of the CCD electronics - one output for each color/- integration .

Volume 6 Number 4 July/August 1981 203

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204

  XEROX DISCLOSURE JOURNAL Volume 6 Number 4 July/August 1981

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