US PATENT SUBCLASS 349 / FOR 134
.~ Variable absorption of light due to an additive in the liquid crystal material (359/96)

Current as of: June, 1999
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349 /   HD   LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS

193  DF  LIQUID CRYSTAL OPTICAL ELEMENT {21}
FOR 134.~ Variable absorption of light due to an additive in the liquid crystal material (359/96) {2}
FOR 135  DF  .~.~> Flurescent additive (359/97)
FOR 136  DF  .~.~> Pleochroic dye (359/98)

DEFINITION

Classification: 349/FOR.134

Variable absorption of light due to an additive in the liquid crystal material:

Foreign Art Collection wherein the liquid crystal material contains an additive which selectively absorbs light under certain conditions.