US PATENT SUBCLASS 396 / FOR 710
AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410)


Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

FOR 710AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE (354/410) {8}
FOR 711  DF  .~> Nonphotoelectric exposure control type (354/411)
FOR 712  DF  .~> For controlling entire photographic operation (354/412)
FOR 713  DF  .~> Including artificial illumination system or device (354/413) {7}
FOR 725  DF  .~> Having log transformation circuit (354/425) {3}
FOR 729  DF  .~> Having plural photocells (354/429) {5}
FOR 735  DF  .~> Having circuit for controlling a diaphragm shutter (354/435) {4}
FOR 741  DF  .~> Having circuit for controlling separate diaphragm and shutter (354/441) {4}
FOR 746  DF  .~> Having circuit for controlling diaphragm only (354/446) {7}


DEFINITION

Classification: 396/FOR.710

AUTOMATIC EXPOSURE CONTROL SYSTEM OR DEVICE: (354/410)

Foreign art collection having means which automatically controls the exposure of photos:graphic film in combination with camera structure.