US PATENT SUBCLASS 356 / 252
.~.~ Reticle image transversely adjustable relative to optical axis


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

247  DF  FIDUCIAL INSTRUMENTS {3}
251  DF  .~ Reticle lies outside viewing path {1}
252.~.~ Reticle image transversely adjustable relative to optical axis


DEFINITION

Classification: 356/252

(under subclass 251) Subject matter wherein a reticle or an optical element is movable in order that the image of the reticle may be adjusted transversely to the principal optical axis of the instrument.

SEE OR SEARCH THIS CLASS, SUBCLASS:

29, for similar subject matter where the reticle or optical element is controlled in response to the relative velocity of the observer and a remotely sighted point.