Method of making a variable density light control apparatus by s

Details Method of making a variable density light control apparatus by s Method of making a variable density light control apparatus by s

1992-05-11

1995-12-26

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 52, G02F 113

Patent

active

054792770

ABSTRACT:
A method of making a liquid crystal polarizer includes casting an emulsion of liquid crystal material with pleochroic dye in a containment medium, and forming elongate volumes of said liquid crystal material and pleochroic dye in said containment medium. A liquid crystal polarizer device includes liquid crystal material having low birefringence, a containment medium for containing said liquid crystal material in elongate volumes, and means in combination with said liquid crystal material for affecting polarization of light incident thereon; the liquid crystal material being responsive to a prescribed input to change the optical polarization characteristic of the device.

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