US PATENT SUBCLASS 396 / FOR 735
.~ Having circuit for controlling a diaphragm shutter (354/435)

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

FOR 710  DF  AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410) {8}
FOR 735.~ Having circuit for controlling a diaphragm shutter (354/435) {4}
FOR 736  DF  .~.~> Walking beam type (354/436) {1}
FOR 738  DF  .~.~> Clamp or stop needle type (354/438)
FOR 739  DF  .~.~> Stepping motor type (354/439)
FOR 740  DF  .~.~> Solenoid control type (354/440)

DEFINITION

Classification: 396/FOR.735

Having circuit for controlling a diaphragm shutter: (354/435)

Subject matter under subclass FOR 710 including a circuit which controls a single means behind the camera's optical system for limiting both the cross sectional area of the admitted light and the length of time the film is exposed to the light.