US PATENT SUBCLASS 396 / 161
.~.~ Including exposure control circuit


Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

155  DF  WITH OBJECT ILLUMINATION FOR EXPOSURE {21}
159  DF  .~ Having artificial illumination termination control {4}
161.~.~ Including exposure control circuit


DEFINITION

Classification: 396/161

Including exposure control circuit:

(under subclass 159) Subject matter having a circuit to control an exposure system (e.g., shutter or diaphragm).

SEE OR SEARCH THIS CLASS, SUBCLASS:

166+, for exposure control circuit with illumination mode.

171, for photocell that responds to a burst of light for starting a flash operation or for starting an exposure system.

180+, for camera structure with object illumination and exposure synchronizer.

213+, for generic camera exposure control circuit.

, FOR 720+, for foreign art collections involving an automatic exposure control system including artificial illumination where exposure is controlled without controlling flash. SEE OR SEARCH CLASS

348, Television,

221, 229+, and 362+ for exposure control circuit in video camera, system, and detail.

352, Motion Pictures,

141, and 177 for automatic diaphragm or shutter control in a motion picture camera; subclass 199 for projection light source synchronized with shutter.