Camera with automatic flash function and method for controlling

Photography – Flash system responsive to focal length or distance

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Details

396167, 396159, G03B 1502

Patent

active

056341466

ABSTRACT:
A camera having an automatic flash function according to a charge amount and a method includes a microcontroller for flashing a strobe and carrying out a photograph when a photograph with a suitable exposure can be obtained with a presently charged voltage. A transient, spontaneous image can be obtained after the microcontroller determines a relationship between a measured distance from an object to be photographed and the charged voltage of the strobe when a release switch for the photograph is operated even while the strobe is being charged. The camera includes a power switch, a first step release switch, a second step release switch, an automatic distance measuring circuit, a brightness measuring circuit, the strobe, the shutter and a motor driving circuit which are all connected to the microcontroller.

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patent: 4201934 (1980-05-01), Esaki
patent: 4375322 (1983-03-01), Coppa et al.
patent: 4486086 (1984-12-01), Kresock
patent: 5016038 (1991-05-01), Kobayashi et al.
patent: 5148212 (1992-09-01), Serikawa et al.
patent: 5198855 (1993-03-01), Iwai
patent: 5367355 (1994-11-01), Foust

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