Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-01-06
1993-11-23
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 63, G02F 113, G02F 11335
Patent
active
052649504
ABSTRACT:
The invention provides an improvement in light modulating devices employing birefringent liquid crystal interspersed in isotropic polymer. A polarizer disposed on a surface of the liquid crystal device produces haze-free viewing for all viewing angles in the plane orthogonal to the polarization direction of the light passed by the polarizer.
REFERENCES:
patent: 4048358 (1977-09-01), Shanks
patent: 4068926 (1978-01-01), Nakamura et al.
patent: 4385806 (1983-05-01), Fergason
patent: 4418102 (1983-11-01), Ferrato
patent: 4556289 (1985-12-01), Fergason
patent: 4671618 (1987-06-01), Wu et al.
patent: 4673255 (1987-06-01), West et al.
patent: 4688900 (1987-08-01), Doane et al.
patent: 4749261 (1988-06-01), McLaughlin et al.
patent: 4848875 (1989-07-01), Baughman et al.
patent: 4890902 (1990-01-01), Doane et al.
patent: 4899503 (1990-02-01), Baughman et al.
patent: 5113270 (1992-05-01), Fergason
patent: 5156452 (1992-10-01), Drzaic et al.
Fergason, J., "Polymer Encapulated Nematic Liquid Crystals for Display and Light Control Applications," SID 85 Digest, pp. 68-70 (1985).
Wu et al., "Angular Discrimination of Light Transmission Through Polymer-dispersed Liquid-Crystal Films," J. Appl. Phys., vol. 62, No. 9, 3925-3931 (Nov. 1987).
Drzaic, P., "Polymer Dispersed nematic Liquid Crystal For Large Displays and Light Valves," J. Appl. Phys., vol. 60, No. 6, pp. 2142-2148 (Sep. 1986).
Carrell J. Craig
West John
Gross Anita Pellman
Kent State University
Sikes William L.
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