Sound or vibration operated flash synchronizer for camera

Details Sound or vibration operated flash synchronizer for camera Sound or vibration operated flash synchronizer for camera

1978-09-25

1980-04-22

Gellner, Michael L.

G03B 1503

Patent

active

041992415

ABSTRACT:
A device for synchronizing the flash of a camera with the operation of the shutter in which there are means responsive to the vibrations created by the movement, or abrupt stoppage, of the shutter. The vibrations resulting from shutter operation, according to the invention, may be the sound created by shutter operation or the vibration of the frame created by shutter operation, or a combination of sound and frame vibrations. After the vibrations have been detected, they may operate electrical apparatus which in turn operates the flash device. The electrical apparatus may include a time delay, if necessary, and it may include suitable switching so that battery power is used only when pictures are being taken.

REFERENCES:
patent: 2679187 (1954-05-01), Bitting, Jr.
patent: 3528354 (1970-09-01), Nakagawa et al.
patent: 3709118 (1973-01-01), Shoupp et al.
patent: 3726195 (1973-04-01), Wagner et al.

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