Flashmatic device for cameras

Details Flashmatic device for cameras Flashmatic device for cameras

1986-06-13

1988-01-19

Adams, Russell E.

354421, 354129, 354137, 3541271, G03B 1505

Patent

active

047207256

ABSTRACT:
A flashmatic device for cameras equipped with a programmed electronic shutter having sectors serving also as diaphragm blades, firing the flash at a suitable point in a phase of the shutter operation in which the aperture is gradually opened, to ensure synchronized flash shooting. Even in a case where a sector closing signal is produced earlier than a flash trigger signal, the flash is fired by means of a switch which is closed in relation with the sector closing motion to make flash synchronization possible under any condition.

REFERENCES:
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patent: 4065776 (1977-12-01), Iwata et al.
patent: 4174161 (1979-11-01), Mashimo et al.
patent: 4255030 (1981-03-01), Johnson et al.
patent: 4305647 (1981-12-01), Ishida
patent: 4307949 (1981-12-01), Takazawa et al.
patent: 4346971 (1982-08-01), Johnson et al.
patent: 4466727 (1984-08-01), Nogaoka et al.

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