Operation control device for camera

Details Operation control device for camera Operation control device for camera

1985-06-27

1986-09-30

Perkey, William B.

3542341, 3541731, G03B 118, G03B 310, G03B 964, G03B 1740, G03B 908, G03B 100

Patent

active

046144161

ABSTRACT:
A device for controlling the operation of a camera includes a speed governing member arranged to be operated by a driving force differing from a driving force used for driving shutter blades. The opening speed of the shutter blades is stably controlled by the speed governing member. The control device retards the speed of a shutter blade opening action to enable an automatic focusing action to be performed before the photo-taking aperture actually begins to open after commencement of the shutter blade opening action.

REFERENCES:
patent: 3868712 (1975-02-01), Biber
patent: 3922698 (1975-11-01), Petersen
patent: 4107705 (1978-08-01), Hashimoto et al.
patent: 4212522 (1980-07-01), Kitai et al.
patent: 4217049 (1980-08-01), Kitai et al.
patent: 4348094 (1982-09-01), Hirohata et al.
patent: 4396267 (1983-08-01), Hirohata et al.

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