Light modulating device

Details Light modulating device Light modulating device

1975-04-16

1976-11-09

Sikes, William L.

Telegraphy

Systems

Printing

178 75D, H01J 3148, G01B 902, G02F 121

Patent

active

039907830

ABSTRACT:
A light modulating device comprising a heterogeneous layer containing an electrokinetically movable liquid material and a solid substance polarizable with respect to the liquid. By establishing an electrical field in the layer the electrokinetically movable liquid is caused to move to vary the transmissivity of the layer to visible light. The electrical field is spatially modulated by electric charges in accordance with an image pattern and the incident light is modulated in exact correspondence with the modulated electrical field. The spatial modulation of the electrical field is effected by the incident ultraviolet light or X-ray radiation or by the impingement of an electron beam in a vacuum chamber.

REFERENCES:
patent: 3125637 (1964-03-01), Klebe
patent: 3626084 (1971-12-01), Wohl et al.
patent: 3676588 (1972-07-01), Kozol et al.
patent: 3902012 (1975-08-01), Dalton et al.

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