X-Class synchronization contact means for electric shutters

Details X-Class synchronization contact means for electric shutters X-Class synchronization contact means for electric shutters

1977-09-21

1979-11-20

Gellner, Michael L.

354147, G03B 1505

Patent

active

041748972

ABSTRACT:
An X-class synchronization contact means for electric camera shutters has a switch which is closed by a shutter opening release stroke or by initial motion of a shutter opening operation. The switch is connected to a flash synchronization contact in order to prevent accidental ignition of a flashing means either in the initial step of a camera shutter release operation or in an exposure warning step accompanying the camera shutter release.

REFERENCES:
patent: Re25766 (1965-04-01), Lareau et al.
patent: 3699859 (1972-10-01), Akiyama
patent: 4079389 (1978-03-01), Hashimoto et al.

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