Camera provided with automatic focus adjusting device

Details Camera provided with automatic focus adjusting device Camera provided with automatic focus adjusting device

1979-09-11

1982-09-21

Hix, L. T.

354238, 354268, G03B 1318, G03B 1740

Patent

active

043504183

ABSTRACT:
The disclosed camera is provided with an automatic focus adjusting device for automatically adjusting the focus of an objective lens. A timer circuit, adapted to be actuated in synchronism with the automatic focusing device initiating focus adjustment of the objective lens, sets a predetermined time and inhibits the actuation of a shutter release device for the predetermined time. In a preferred embodiment, the shutter release actuation is controlled in accordance with the logic condition of a focus adjustment completion signal obtained from the automatic focus adjusting device and a time count completion signal produced when the predetermined time has elapsed. In another embodiment of the present invention, a battery voltage detecting circuit prevents shutter release when the voltage of the battery energizing the camera is below a predetermined level.

REFERENCES:
patent: 3274914 (1966-09-01), Biedermann et al.
patent: 4181417 (1980-01-01), Sugiura et al.
patent: 4200378 (1980-04-01), Shenk

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