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Electronic-photography-system-with-still-and-motion-picture-modes

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Electronic photography system with still and motion picture modes

Details

Inventors: Saito, Syuichiro; Okino, Tadashi;
Assignee: Canon Kabushiki Kashia (Tokyo, JP)
Primary Examiner: Stephan; Steven L.
Assistant Examiner: Weinhardt; Robert A.
Attorney, Agent or Firm: Toren, McGeady & Associates

An electronic still/motion picture photography system including an optical-electronic transducer for producing electrical signals responsive to an optical image, a light information control member, such as a diaphragm, for controlling the state of light information incident on the transducer, a discriminating circuit for discriminating the state of light information as it is controlled by the light information control member, a drive source responsive to the output of the discriminating circuit for driving the light information control member, a recorder for recording the output of the transducer, an indicating switch for indicating the amount of output representing the exposed image to be recorded by the recorder, and a operating circuit responsive to the output of the indicating switch for changing the driving characteristics of the drive source.

DETAILED DESCRIPTION An object of the present invention is to provide an image pickup device which overcomes the drawbacks of the conventional technique.
Another object of the invention is to provide a diaphragm control device having controllable response characteristic.
Still another object of the invention is to provide an electronic photography system in which the control characteristic of the diaphragm or the like properly changes depending upon the amount of image to be recorded.

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