Electro-optic ceramic material

Details Electro-optic ceramic material Electro-optic ceramic material

1973-07-31

1976-12-21

Rolinec, R. V.

Optics: image projectors

Plural projection paths with single light source

350160R, 353122, 353 98, 3401732, G02F 126

Patent

active

039985237

ABSTRACT:
An electro-optic ceramic material useful for electro-optic applications comprising an anti-ferroelectric phase (or para-electric phase) and a ferroelectric phase, the two phases of which coexist having a morphotrophic phase boundary. The scattering of light applied to the ceramic material can be changed by a voltage applied to the ceramic material whereby the anti-ferroelectric phase (or para-electric phase) and the ferroelectric phase are reversibly changed and thus the morphotrophic phase boundary is shifted corresponding to the phase changes.

REFERENCES:
patent: 3609002 (1971-09-01), Fraser
patent: 3612656 (1971-10-01), Maldonado
patent: 3614200 (1971-10-01), Taylor
Thacher, Electrocaloric Effects in Some Ferroelectric and Antiferroelectric Comp., Journal of App. Phys., vol. 39, No. 4, Mar. 1968, pp. 1996-2002.
Roberts, Strain Biased PLZT Input Devices for Holographic Memories and Optical Data Processing, Applied Optics, vol. 11, No. 2, Feb. 1972, pp. 397-404.

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