Flash and camera device

Details Flash and camera device Flash and camera device

1977-03-14

1978-04-11

Hix, L. T.

354 35, 354145, G03B 1505

Patent

active

040841677

ABSTRACT:
A combined device of photographic camera device and an electronic flash device in which a charged energy in a main discharge capacitor is consumed by a flash discharge tube to emit flash light, comprises a switch mechanism linked to a shutter button to be turned on by the actuation of the shutter button to allow the feed of a power supply to the main discharging capacitor, and a further switching circuit operative when a brightness detected by a brightness sensing circuit is low to activate a holding circuit for maintaining the switch mechanism in its on state and deactivate the holding circuit when a predetermined charge has been stored in the main discharging capacitor.

REFERENCES:
patent: 3465656 (1969-09-01), Wick et al.
patent: 3684917 (1972-08-01), Uno et al.

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