Low loss liquid crystal modulator for coloring and shaping a lig

Details Low loss liquid crystal modulator for coloring and shaping a lig Low loss liquid crystal modulator for coloring and shaping a lig

1987-12-04

1991-08-20

Miller, Stanley D.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

353 31, 353 34, 353122, 359 84, 359 53, G02F 1133, G03B 2100, G03B 2126

Patent

active

050408771

ABSTRACT:
The invention provides a low loss liquid crystal modulator for coloring and shaping a light beam wherein liquid crystal light modulators provide continuous variation in color and intensity output by controlled scattering; the liquid crystal light modulators comprise addressable sheets of light-wave-length size liquid crystal occlusious in a transparent matrix; the modulators employ nematic liquid crystal exhibiting positive dielectric anisotropy; the modulator is employed in varying and coloring output beams to allow for colored data or video transmission; images produced may vary in time as is required for, e.g., color television; the modulator is employed in color projectors for both data and video projection, for color printing, and for colored stage illumination. Low loss transmission of the modulators provides for bright images which can be viewed under high ambient illumination.

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