Camera having focus detection device

Details Camera having focus detection device Camera having focus detection device

1995-11-02

1997-11-25

Perkey, W. B.

Photography

Eye tracking

396 92, 396121, 396147, G03B 1336

Patent

active

056922221

ABSTRACT:
A focus adjusting apparatus which includes a focus detection device for independently detecting focus states of N different regions in a scene. The apparatus includes a selection circuit and a focus adjustment circuit. The selection circuit simultaneously selects, among the N regions, an arbitrary number of regions, the arbitrary number being less than N, and the selection circuit setting, among the N regions which are all selectable, a first number and a second number, different from the first number, of regions as regions simultaneously selected. The focus adjustment circuit performs focus adjustment on the basis of the focus states independently detected in the regions set by the selection circuit.

REFERENCES:
patent: 5296888 (1994-03-01), Yamada
patent: 5422700 (1995-06-01), Suda et al.
patent: 5473403 (1995-12-01), Suda et al.
patent: 5485239 (1996-01-01), Ohsawa
patent: 5530513 (1996-06-01), Ohsawa

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