Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1978-06-22
1980-10-07
Nelms, David. C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
235473, 250551, G02B 514
Patent
active
042270782
ABSTRACT:
A photo-sensor wherein a bundle of optical fibers in the form of a sheet is disposed within a predetermined substrate, the optical fiber bundle extending from a first surface to a second surface of the substrate, an array of photosensitive elements is disposed integrally with the substrate in such a manner that at least one transparent insulating layer intervenes between the photoelectric elements and the optical fiber bundle on, at least, an end face of the optical fiber bundle on the first surface side of the substrate, and an end face of the optical fiber bundle open to the second surface of the substrate serves as an information reading face.
REFERENCES:
patent: 3524986 (1970-08-01), Harnden
patent: 3786238 (1974-01-01), Heisner
patent: 3879606 (1975-04-01), Bean
patent: 3992620 (1976-11-01), Waller
Hirai Tadaaki
Maruyama Eiichi
Matsui Makoto
Matsumaru Haruo
Tsukada Toshihisa
Hitachi , Ltd.
Hostetter Darwin R.
Nelms David. C.
Nippon Telegraph and Telephone Public Corporation
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