G - Physics – 02 – F
Patent
G - Physics
02
F
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G02F 1/133 (2006.01) G02F 1/1334 (2006.01) G02F 1/137 (2006.01)
Patent
CA 1325469
ABSTRACT A liquid crystal apparatus (30) comprising a containment medium (56), a birefringent liquid crystal material (38) and a pleochroic dye (54) contained in the liquid crystal material. The difference between the ordinary and extraordinary indices of refraction of the liquid crystal material is between about .23 and .30. The liquid crystal material is dispersed in plural volumes in the containment medium and the size of those volumes are on the order of about .5 to 2.5 microns. The thickness of the containment medium is between about 8 and 18 microns. A pleochroic dye is present in the liquid crystal material in a concentration of about .6% to 1.2%. The apparatus has enhanced backscattering in the field-off state and enhanced light transmission in the field-on state.
614336
Drzaic Paul
Wiley Richard
Drzaic Paul
Raychem Corporation
Smart & Biggar
Taliq Corporation
Wiley Richard
LandOfFree
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