Focus detector

Details Focus detector Focus detector

1999-09-08

2000-09-12

Perkey, W. B.

Photography

With exposure objective focusing means, focusing aid, or...

Reliability of focus/distance signal

396123, G03B 1336

Patent

active

061189480

ABSTRACT:
A focus detector amplifies a plurality of sets of output signals from a plurality of photoelectric transfer element arrays by the most preferable amplifying mode and focuses a focus of an optical lens system on a desired object among a plurality of objects corresponding to the photoelectric transfer element arrays by selecting a method for deciding a defocus among a nearest position priority method, a lateral direction priority method and a reliability priority method responding to a condition of the objects.

REFERENCES:
patent: 4636624 (1987-01-01), Ishida et al.
patent: 4835615 (1989-05-01), Taniguchi et al.
patent: 4859842 (1989-08-01), Suda et al.
patent: 5333028 (1994-07-01), Akashi et al.

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