US PATENT SUBCLASS 356 / 12
.~.~ Stereoscopic

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

3  DF  RANGE OR REMOTE DISTANCE FINDING {9}
9  DF  .~ Base line instrument (i.e., base is a part of instrument) {8}
12.~.~ Stereoscopic {2}
13  DF  .~.~.~> Ortho-pseudo type
14  DF  .~.~.~> Stationary measuring marks

DEFINITION

Classification: 356/12

(under subclass 9) Subject matter wherein the observer sees the field of view in three dimensions, the range being determined by comparing the depth of the object whose range is to be measured with the apparent depth of a mark or marks superimposed upon the field of view.

SEE OR SEARCH CLASS

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

462+, for stereoscopic systems generally.