1981-08-24
1983-06-21
Adams, Russell E.
354234, 354268, G03B 118
Patent
active
043891110
ABSTRACT:
A camera includes a shutter which is electromagnetically closed at the end of a given exposure time. Circuitry in the camera operates to prevent a prolonged opening of the shutter from occurring when the camera battery voltage drops below a satisfactory operating level during an exposure, wherein the shutter mechanism is forcibly recharged.
REFERENCES:
patent: 4126877 (1978-11-01), Ohtaki et al.
patent: 4201463 (1980-05-01), Harigaya et al.
patent: 4299466 (1981-11-01), Harvey
Haraguchi Shosuke
Shigeta Yoshihiro
Tosaka Yoichi
Uchidoi Masanori
Yoshikawa Ryoichi
Adams Russell E.
Canon Kabushiki Kaisha
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