Focal plane shutter

Details Focal plane shutter Focal plane shutter

1974-02-13

1976-03-16

Hix, L. T.

354137, 354138, 354146, 354239, 354260, G03B 1504

Patent

active

039450260

ABSTRACT:
A flash synchronizing device suitable for focal plane shutters arranged to accurately synchronize lighting of the flash bulb and opening of the shutter and comprising an M-movable contact to be moved for closing the flash circuit at the same time as shutter releasing, a release lock lever to be moved at the same time as shutter releasing in order to open the shutter, and a gear governor which operates to delay the shutter opening time as the shutter speed becomes higher by retarding the motion of said release lock lever.

REFERENCES:
patent: 2930298 (1960-03-01), Suzukawa
patent: 3825940 (1974-07-01), Hayami
patent: 3852778 (1974-12-01), Ivva

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