Stop control apparatus for electronic camera

Details Stop control apparatus for electronic camera Stop control apparatus for electronic camera

1984-02-14

1985-12-10

Isen, Forester W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

352141, H04N 526

Patent

active

045583684

ABSTRACT:
A stop control apparatus for an electronic camera capable of performing both still picture photographing and motion picture (video) photographing operations. A video exposure control circuit and a still exposure control circuit produce first and second operating signals during motion picture and still picture photographing operations, respectively. A selected one of the signals is applied to operate an electromagnetic diaphragm control mechanism composed of an electronic drive device mechanically coupled to operate the aperture blades of the camera. An aperture opening regulator determines the aperture opening amount in accordance with a selected aperture value, with the regulating means operating by producing a force which acts against the force produced by the electromagnetic drive device.

REFERENCES:
patent: 4410915 (1983-10-01), Yamamoto
patent: 4471383 (1984-09-01), Shiono

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