Optical reader

Details Optical reader Optical reader

1982-06-25

1984-09-11

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

235469, 358293, 358294, H04N 112

Patent

active

044713843

ABSTRACT:
An optical reader which comprises: at least one yellow LED array as a light source for lighting original material; an optical lens or fibers for guiding the light reflected from the original material; and an image sensor which changes the reflected light to signal waves. In embodiments of the reader, the light source includes both a yellow LED array and a green LED array with colored filters either provided over the LED arrays or on the optical lens or fibers.

REFERENCES:
patent: 3967893 (1976-07-01), Majewicz
patent: 4047023 (1977-09-01), Key
patent: 4317137 (1982-02-01), Tompkins
patent: 4402017 (1983-08-01), Takei

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