US PATENT SUBCLASS 351 / 207
.~.~.~ Having spurious reflection blocking

Current as of: June, 1999
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351 /   HD   OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING

200  DF  EYE EXAMINING OR TESTING INSTRUMENT {7}
205  DF  .~ Objective type {10}
206  DF  .~.~ Including eye photography {2}
207.~.~.~ Having spurious reflection blocking

DEFINITION

Classification: 351/207

Having spurious reflection blocking:

(under subclass 206) Subject matter including means for blocking undesirable reflections from the eye, or from elements in the optical path.