Apparatus for and method of operation of smectic liquid crystal

Details Apparatus for and method of operation of smectic liquid crystal Apparatus for and method of operation of smectic liquid crystal

1990-10-24

1992-08-18

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 72, 359 90, 359100, G02F 1135, G02F 1137

Patent

active

051404486

ABSTRACT:
A liquid crystal light valve, comprising a layer of liquid crystal for storing image information and a photoconductor aligned with the liquid crystal and positioned in closed proximity thereto for effecting an electric field applied across the liquid crystal. Apparatus is provided for simultaneously applying an electric field across the liquid crystal and photoconductor while impinging optical image information on the photoconductor, the photoconductor and applied field combining to produce a modified electric field across the liquid crystal which impresses the image information on the photoconductor into the liquid crystal.

REFERENCES:
patent: 3732429 (1973-05-01), Braunstein et al.
patent: 4031529 (1977-06-01), Bore et al.
patent: 4106853 (1978-08-01), Boswell
patent: 4277145 (1981-07-01), Hareng et al.
patent: 4440473 (1984-04-01), Sekimoto
patent: 4477151 (1984-10-01), Mash
patent: 4941735 (1990-07-01), Moddel et al.

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