Focus detecting apparatus having photoelectric area sensors

Details Focus detecting apparatus having photoelectric area sensors Focus detecting apparatus having photoelectric area sensors

1992-08-27

1995-06-27

Perkey, W. B.

G03B 1336

Patent

active

054284201

ABSTRACT:
This invention relates to a focus detecting apparatus using an area sensor as an AF sensor, and particularly provides a focus detecting apparatus in which when any area in a scene is designated and the focus state in that area is to be detected, the output from an area on the sensor corresponding to the designated area of the scene is read and processed on the basis of the information of an area on the area sensor corresponding to the designated area of the scene pre-memorized In a memory circuit.

REFERENCES:
patent: 4573784 (1986-03-01), Suzuki
patent: 4859842 (1989-08-01), Suda et al.
patent: 4903065 (1990-02-01), Taniguchi et al.
patent: 4954701 (1990-09-01), Suzuki et al.
patent: 4980716 (1990-12-01), Suzuki et al.
patent: 5128768 (1992-07-01), Suda et al.
patent: 5151732 (1992-09-01), Akashi et al.
patent: 5155347 (1992-10-01), Nishibe
patent: 5241167 (1993-08-01), Suzuki et al.

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