Liquid crystal light valve having capability of providing high-c

Details Liquid crystal light valve having capability of providing high-c Liquid crystal light valve having capability of providing high-c

1992-07-31

1994-04-26

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 55, 359 72, 359 82, G02F 11335, G02F 1135

Patent

active

053071867

ABSTRACT:
A liquid crystal light valve includes a first substrate having a transparent electrode formed thereon, a second substrate, a liquid crystal provided between the first and second substrates, a photoconductive layer formed between the liquid crystal layer and the first substrate, the photoconductive layer being adapted to change impedance thereof in response to an incident ray of light thereto, and a light waveguide for emitting light from the first substrate side to the photoconductive layer.

REFERENCES:
patent: 3971931 (1976-07-01), Jehle
patent: 4749245 (1988-06-01), Kawatsuki et al.
patent: 5009490 (1991-04-01), Kouno et al.
patent: 5054872 (1991-10-01), Fan et al.
patent: 5148297 (1992-09-01), Ishii et al.
Hornberger, "liquid crystal display", IBM, vol. 12, No. 10 Mar. 1970, pp. 1697-1698.
Patent Abstracts of Japan, vol. 14, No. 366, Aug. 8, 1990 & JP-A2134617 (Seiko Epson) (Abstract).
Patent Abstracts of Japan, vol. 13, No. 448, Oct. 9, 1989 & JP-A-1173016 (Toray) (Abstract).
"A New Real-Time Non-Coherent to Coherent Light Image Converter, The Hybrid Field Effect Liquid Crystal Light Valve," Optical Engineering, May-Jun. 1975, vol. 14, No. 3, pp. 217-225.

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