Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Patent
1991-11-07
1993-08-31
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
354402, G01J 120
Patent
active
052411672
ABSTRACT:
A photoelectric sensor device has a two-dimensional arrangement of a multiplicity of unit structures each including a pixel. The sensor device includes a circuit for simultaneously designating a plurality of pixel blocks of any desired sizes at any desired positions on the two dimensional arrangement of unit structures, each pixel block being composed of pixels which are to be actually used. The sensor device also includes a monitor output circuit for outputting, for each of the pixel blocks, at least one monitor output as the representative of the amounts of charges accumulated in the pixels in each of the pixel blocks. The sensor device further includes a circuit which executes the control of accumulation of charges and the control of outputting of the image signals on each of the pixel blocks independently of other pixel blocks. Disclosed also is a focus detection system using the sensor device.
REFERENCES:
patent: 4460260 (1984-07-01), Utagawa
patent: 4643557 (1987-02-01), Ishizaki et al.
patent: 4812869 (1989-03-01), Akashi et al.
patent: 4952963 (1990-08-01), Akashi
patent: 4954701 (1990-09-01), Suzuki et al.
patent: 5051833 (1991-09-01), Tsuji
patent: 5107337 (1992-04-01), Ueda et al.
Akashi Akira
Miyawaki Mamoru
Nakayama Toshiki
Suzuki Kenji
Canon Kabushiki Kaisha
Nelms David C.
Shami K.
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