Chiral smectic liquid crystal phase spatial light modulator for

Details Chiral smectic liquid crystal phase spatial light modulator for Chiral smectic liquid crystal phase spatial light modulator for

1996-05-17

1998-06-09

Sikes, William L.

Liquid crystal cells, elements and systems

Liquid crystal optical element

349196, 349202, G02F 113

Patent

active

057643296

ABSTRACT:
A phase spatial light modulator composed of a liquid crystal cell and a reflective element. The modulator capable of receiving and modulating substantially 100% of unpolarized light impinging thereupon. The modulator intended for use within an electro-optical system additionally composed of a light source, driver/control circuitry and an optional optical magnification system. In operation, an external stimulus is applied, such as a voltage supplied by an external power source, thereby changing the phase of light emitted therethrough, generating two beams of light traveling in different directions. The first beam of light impinges upon the reflective element and is reflected to travel in the same directional path as the second beam of light.

REFERENCES:
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patent: 5467215 (1995-11-01), Lebby et al.
patent: 5539554 (1996-07-01), Lebby et al.
patent: 5543958 (1996-08-01), Lebby et al.
patent: 5552912 (1996-09-01), Sharp et al.

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