Operation detecting device for camera

Details Operation detecting device for camera Operation detecting device for camera

1979-01-23

1981-07-14

Hix, L. T.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

354 53, 354234, 354289, 354173, 361159, G03B 7081, G03B 908, G03B 1720, H01H 4700

Patent

active

042783364

ABSTRACT:
The present invention is directed to an operation detecting device of a camera for detecting the operation of an operation member such as the shutter member. The operation detecting device functions by detecting the electrical signal produced at the time at which a closed magnetic circuit is opened when a magnet operates so as to actuate or release the operation member.

REFERENCES:
patent: 3241471 (1966-03-01), Burgarella
patent: 3275899 (1966-09-01), De Wolf
patent: 3882362 (1975-05-01), Watanabe
patent: 3946409 (1976-03-01), Toyoda
patent: 4037236 (1977-07-01), Numata et al.
patent: 4084169 (1978-04-01), Iwata et al.
patent: 4112443 (1978-09-01), Iouchi

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