Exposure control system for camera

Details Exposure control system for camera Exposure control system for camera

1979-08-03

1982-01-19

Hix, L. T.

354 51, 354139, G03B 700, G03B 1505

Patent

active

043113710

ABSTRACT:
An exposure control system for a photographic camera of a type having a two-curtain type focal plane shutter. When used in combination with an electronic flash device in which the voltage stored on a capacitor is discharged through a flash tube to illuminate the target object to be photographed, this system is switched from an automatic or manual daylight exposure mode to an automatic flash exposure mode when the voltage stored on the capacitor in the flash device reaches a predetermined amount. The shutter is closed in response to the firing of the flash device.

REFERENCES:
patent: 3688663 (1972-09-01), Uchiyama et al.
patent: 3690237 (1972-09-01), Fuwa
patent: 3720144 (1973-03-01), Uchiyama
patent: 3757654 (1973-09-01), Mori
patent: 3978496 (1976-08-01), Matsumoto
patent: 4016575 (1977-04-01), Uchiyama et al.

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