Flash synchronizing device for a camera

Details Flash synchronizing device for a camera Flash synchronizing device for a camera

1975-09-18

1977-05-17

Griffin, Donald A.

354219, 354246, G03B 1503, G03B 1302, G03B 940

Patent

active

040245500

ABSTRACT:
A flash synchronizing device for use in a photographic camera having a two-blade type shutter comprises first and second switches series-circuited to each other and to a battery circuit for a flash tube and associated with the shutter so that the first switch is closed when the opening blade of the shutter is in a terminal position of running-down movement thereof, and the second switch is opened when the closing blade starts to running-down movement.

REFERENCES:
patent: 3228315 (1966-01-01), Platt
patent: 3529526 (1970-09-01), Wick et al.
patent: 3715959 (1973-02-01), Harvey
patent: 3872488 (1975-03-01), Oshima
patent: 3900857 (1975-08-01), Tsujimoto

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