US PATENT SUBCLASS 359 / 508
.~ Optical element rotates


Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

507  DF  PROTECTION FROM MOISTURE OR FOREIGN PARTICLE {6}
508.~ Optical element rotates


DEFINITION

Classification: 359/508

Optical element rotates:

(under subclass 507) Subject matter where an optical element or a shield therefor is rotated or otherwise moved to throw off moisture or other foreign matter, usually by centrifugal force.

(1) Note. The optical element may be rotated by any motor including one operated by air passing over vanes as in an air operated turbine.