Imaging method with U.V. excitation of liquid crystal

Details Imaging method with U.V. excitation of liquid crystal Imaging method with U.V. excitation of liquid crystal

1974-09-25

1976-04-20

Dixon, Harold A.

Radiant energy

Infrared-to-visible imaging

Including liquid crystal detector

250372, 350160LC, H01J 3149, G02B 523

Patent

active

039521931

ABSTRACT:
The electrical resistivity of pure trans-stilbene nematic liquid crystalline materials is altered by exposure to ultraviolet radiation. These stilbenes can therefore be made to dynamically scatter uniformly or in imagewise configuration and can be added to liquid crystalline compositions to alter the compositions' resistivities.

REFERENCES:
patent: 3114836 (1963-12-01), Fergason et al.
patent: 3401262 (1968-09-01), Fergason et al.
patent: 3732429 (1973-05-01), Bravnstein et al.
patent: 3767289 (1973-10-01), Aviram et al.
patent: 3789225 (1974-01-01), Leder
patent: 3803408 (1974-04-01), Assouline et al.
patent: 3824002 (1974-07-01), Beard
patent: 3842275 (1974-10-01), Haas

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