Optical color document reading apparatus wherein an image is blu

Details Optical color document reading apparatus wherein an image is blu Optical color document reading apparatus wherein an image is blu

1985-03-20

1987-06-23

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 44, 358 50, 358 55, H04N 146, H04N 907, H04N 909, G03F 308

Patent

active

046757279

ABSTRACT:
An optical document reading apparatus which minimizes color moire phenomenon effects including an optical imaging system, and a line image sensor having sensor elements arranged in a line and color filter elements disposed on the sensor elements. A plurality of sensor elements are assigned to one pixel of said document, and the line image sensor senses light reflected from the document through the optical imaging system. The apparatus has a magnification condition which is determined from a distance between the document and the optical imaging system and a distance between the optical imaging system and the image sensor. The magnification is selected to be such that the optical imaging system does not precisely image the document onto the image sensor.

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