Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1979-02-27
1980-11-04
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250226, 235473, G02B 514
Patent
active
042322197
ABSTRACT:
A photosensor including a fiber substrate having a light receiving window formed in a surface thereof spaced from an information surface to be read, a bundle of optical fibers disposed in the fiber substrate and positioned in the light receiving window. A plurality of color filters of different characteristics are disposed on an end face of the bundle of optical fibers, and a plurality of arrays of photosensitive elements corresponding to the color filters are also provided. The arrays of photosensitive elements are integrally provided with the fiber substrate and disposed in the region of the end face of the bundle of the optical fibers farthest away from the information surface.
REFERENCES:
patent: 3786238 (1974-01-01), Heisner
Inagaki Hiroya
Maruyama Eiichi
Tsukada Toshihisa
Yamamoto Hideaki
Hitachi , Ltd.
Hostetter Darwin R.
Nelms David C.
Nippon Telegraph and Telephone Public Corporation
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