US PATENT SUBCLASS 356 / 24
.~ Periodically moving reflecting or refracting element

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

23  DF  MOTION STOPPING (E.G., STROBOSCOPES) {2}
24.~ Periodically moving reflecting or refracting element

DEFINITION

Classification: 356/24

(under subclass 23) Subject matter including reflecting or refracting means which are moved periodically to vary the direction of a light beam.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

197+, for scanning means in general which use a periodically moving reflecting or refracting element.