US PATENT SUBCLASS 352 / 42
.~.~.~ With color filtration

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

38  DF  METHODS {4}
40  DF  .~ Exhibiting {2}
41  DF  .~.~ Controlling projector illumination {1}
42.~.~.~ With color filtration

DEFINITION

Classification: 352/42

(under subclass 41) Subject matter wherein the regulation and control steps comprise a color filtration of the projector light source.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66+, for apparatus for filtering projector light sources to render natural color effects.

213, for projector shutters with color filter blades.