Shutter controlling aid means for use with camera

Details Shutter controlling aid means for use with camera Shutter controlling aid means for use with camera

1977-10-13

1980-02-26

Hix, L. T.

354145, G03B 1505

Patent

active

041903358

ABSTRACT:
A means is provided for use with a camera of the type having an electrical shutter and which is adapted to utilize a strobo unit. The said means comprises a first circuit including a capacitor and a resistor connected in series across the X contacts of said camera and a second circuit connected with said first circuit and producing a shutter closing signal. The capacitor is charged by power means in the strobo unit. The X contacts close to cause the strobo unit flash means to operate and, at the same time, discharging said first circuit means and triggering the second circuit means to produce a shutter closing signal for closing the shutter at that time unless the shutter has already been closed. Additional circuit means may be provided between said first and second means for delaying operation of said second circuit means.

REFERENCES:
patent: 3673415 (1972-06-01), Yoshimura et al.
patent: 3720144 (1973-03-01), Uchiyama et al.
patent: 3987468 (1976-10-01), Matsuzaki et al.
patent: 4016575 (1977-04-01), Uchiyama et al.
patent: 4030108 (1977-06-01), Yazaki et al.

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