Aperture control device for use in a still camera

Details Aperture control device for use in a still camera Aperture control device for use in a still camera

1982-09-27

1984-10-23

Perkey, William B.

354453, G03B 716

Patent

active

044785020

ABSTRACT:
An aperture size control device for use in a still camera includes an aperture stop device which can change its aperture size rapidly in response to a drive circuit during a single exposure cycle. A control device is connected to the drive circuit for controlling the aperture size to a first size with no change in the brightness of an object to be photographed and to a second size when the brightness of the object changes due to, e.g., the emission of flash light during the exposure period. The aperture size can return to the first aperture size after the completion of the emission of the flash light during the same exposure period.

REFERENCES:
patent: 4415248 (1983-11-01), Suzuki et al.

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