US PATENT SUBCLASS 359 / 491
.~.~.~ Stain or dye

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

483  DF  POLARIZATION WITHOUT MODULATION {2}
485  DF  .~ Light polarization without any external input {8}
490  DF  .~.~ By dichroic medium {2}
491.~.~.~ Stain or dye

DEFINITION

Classification: 359/491

Stain or dye:

(under subclass 490) Subject matter wherein a coloring agent is absorbed by the polarization medium to affect the polarization of the applied light beam.