Automatic exposure control device

Details Automatic exposure control device Automatic exposure control device

1988-09-01

1990-03-06

Adams, Russell E.

354437, 354439, 354458, 3542341, G03B 708

Patent

active

049070274

ABSTRACT:
The present invention relates to an exposure control automatic device for a camera. A shutter controls the amount of the exposure; a detector detects the operation speed of the shutter and calculator device compares an output of the detector with a predetermined speed information to determine the exposure time.

REFERENCES:
patent: 4009866 (1977-03-01), Iwata et al.
patent: 4053907 (1977-10-01), Iwata et al.
patent: 4325614 (1982-04-01), Grimes
patent: 4354748 (1982-10-01), Grimes et al.
patent: 4572645 (1986-02-01), Yoshida et al.

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