Automatic focusing device for camera

Details Automatic focusing device for camera Automatic focusing device for camera

1982-11-15

1984-11-13

Perkey, William B.

G03B 708

Patent

active

044822359

ABSTRACT:
An automatic focusing device for camera is so formed as to attain high precision and rapid automatic focusing even for those photographing lenses whose focal length is variable as in the case of zoom lens.

REFERENCES:
patent: 4314748 (1982-02-01), Kawabata et al.
patent: 4344679 (1982-08-01), Yagi et al.
patent: 4370038 (1983-01-01), Kimura
patent: 4400075 (1983-08-01), Tomori et al.
patent: 4404595 (1983-09-01), Ushiro et al.

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