Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1997-03-21
1998-11-24
Allen, Stephone B.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
250216, 358471, H01J 4014, H01L 2714
Patent
active
058411283
ABSTRACT:
An optical read sensor includes a circuit board having light-emitting elements mounted thereon, a transparent cover on which an original to be read is placed, light-receiving elements, and a light-guide that guides the light reflected by the original to the light-receiving elements. The light-emitting elements emit light toward the original. The original reflects the light emitted from the light-emitting elements through the transparent cover. The light guide guides the light reflected by the original to the light-receiving elements.
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patent: 5581076 (1996-12-01), Tabata
Ando Takeo
Masui Mayumi
Shibuya Yoshiki
Allen Stephone B.
OKI Electric Industry Co., Ltd.
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