Storage-type electro-optical modulator

Details Storage-type electro-optical modulator Storage-type electro-optical modulator

1974-05-22

1976-02-24

Corbin, John K.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340173LM, 3401732, 350150, 350160R, G02F 103, G03H 104

Patent

active

039402010

ABSTRACT:
A high operational reliability modulator, constituted by a mosaic of elements having variable double-refraction properties. It comprises, on a flat ferro-electric ceramic structure and in respect of each element, a first conventional pair of transparent electrodes and a second pair of distinct electrodes, made of transparent photoconductive material; by the application of illumination, the second electrodes are rendered conductive exclusively at the required instant, thus avoiding any interim disturbance to the action of the first electrodes and enabling the change of double-refraction properties of the ceramic.

REFERENCES:
patent: 3609002 (1971-09-01), Fraser et al.
patent: 3806895 (1974-04-01), Tomisawa et al.

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