Focus detecting device

Details Focus detecting device Focus detecting device

1992-07-20

1995-01-10

Perkey, W. B.

G03B 1336

Patent

active

053812069

ABSTRACT:
Improved accuracy is contrived in a focus detecting device for finding the amount of correlation between signals corresponding to images received on first and second sensor arrays. A picture element signal of each sensor is duplicated and taken out as a signal of a double Information amount, thereby enabling correlation calculation to be effected accurately.

REFERENCES:
patent: 4572476 (1986-02-01), Oinoue
patent: 4716282 (1987-12-01), Akashi et al.
patent: 4816861 (1989-03-01), Taniguchi et al.
patent: 4974003 (1990-11-01), Ohnuki et al.
patent: 5081479 (1992-01-01), Kadohara et al.

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