US PATENT SUBCLASS 351 / 232
.~.~ With light polarzing lens

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}
222  DF  .~ Subjective type {7}
232.~.~ With light polarzing lens

DEFINITION

Classification: 351/232

With light polarizing lens:

(under subclass 222) Subject matter wherein adjustable light polarizing means are positioned in the light beam of a projected test-image and/or before each eye of a patient viewing a test target.

SEE OR SEARCH THIS CLASS, SUBCLASS:

49, for antiglare spectacles with polarizing lenses.

203, for eye exercising devices with light polarizers.

SEE OR SEARCH CLASS

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

483+, for polarizing devices generally.