US PATENT SUBCLASS 352 / 167
.~ With illumination control responsive to drive speed

Current as of: June, 1999
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352 /   HD   OPTICS: MOTION PICTURES

166  DF  CAMERA AND/OR PROJECTOR DRIVE MECHANISMS {14}
167.~ With illumination control responsive to drive speed

DEFINITION

Classification: 352/167

(under subclass 166) Subject matter including means to regulate the intensity of the projection light source in response to the speed of the film transport mechanism.

SEE OR SEARCH THIS CLASS, SUBCLASS:

152+, for auxiliary fire shutters to interrupt the light and being responsive to film transport speed.

198+, for projector light sources specifically adapted for motion picture projectors.