US PATENT SUBCLASS 353 / 33
.~.~ Prism

Current as of: June, 1999
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353 /   HD   OPTICS: IMAGE PROJECTORS

30  DF  COMPOSITE PROJECTED IMAGE {5}
31  DF  .~ Multicolor picture {2}
33.~.~ Prism

DEFINITION

Classification: 353/33

(under subclass 31) Subject matter including a prism, usually for directing light to the respective pictures or for combining light which has come through the respective pictures.

SEE OR SEARCH THIS CLASS, SUBCLASS:

81, for a projector having a prism.