US PATENT SUBCLASS 396 / FOR 720
.~.~ Controlling exposure without controlling flash (354/420)

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 713  DF  .~ Including artificial illumination system or device (354/413) {7}
FOR 720.~.~ Controlling exposure without controlling flash (354/420) {3}
FOR 721  DF  .~.~.~> Having follow focus control of exposure (354/421)
FOR 722  DF  .~.~.~> Having single circuit controlling the shutter and diaphragm (354/422)
FOR 723  DF  .~.~.~> Having means for controlling only the diaphragm (354/423)

DEFINITION

Classification: 396/FOR.720

Controlling exposure without controlling flash: (354/420)

Subject matter under subclass FOR 713 in which artificial illumination is held constant and circuitry adjusts either the diaphragm or exposure time dependent on the artificial illumination.