G - Physics – 03 – H
Patent
G - Physics
03
H
G03H 1/02 (2006.01) G02B 5/32 (2006.01) G02F 1/13 (2006.01) G02F 1/1333 (2006.01) G03F 7/00 (2006.01) G03H 1/18 (2006.01)
Patent
CA 2046858
Composite holograms are disclosed wherein microvoids between the holographic interference fringes are filled with a liquid crystal. The diffraction efficiency and other holographic properties of such composite holograms may be varied by external stimuli, e.g,, application of an electric field or thermal energy.
L'invention concerne de hologrammes composites dans lesquels des microcavités entre les franges d'interférence holographiques sont remplies d'un cristal liquide. L'efficacité de diffraction et d'autres propriétés holographiques de tels hologrammes composites peuvent être modifiées par des stimulis externes, p.ex., l'application d'un champ électrique ou d'une énergie thermique.
Ingwall Richard T.
Troll Mark A.
Whitney Duncan H.
Polaroid Corporation
Smart & Biggar
LandOfFree
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