Electro-optical light modulation element

Details Electro-optical light modulation element Electro-optical light modulation element

1980-01-31

1981-06-02

Rosenberger, R. A.

350355, G02F 103

Patent

active

042708478

ABSTRACT:
An electro-optical light modulation element consists of a plate-shaped deuterated potassium dihydrogen phosphate crystal on whose opposite sides transparent layer systems are provided. Each layer system consists of an intermediate layer, on the crystal, comprising an aluminum oxide layer and a silicon oxide layer, a first high-ohmic electrode, on the intermediate layer, which is connected to a second low-ohmic electrode via a transparent cement layer, and a glass layer supporting the second electode. Such a light modulation element whose optical properties are determined by the longitudinal Pockels effect, may be used advantageously in digital light deflectors.

REFERENCES:
patent: 3709586 (1973-01-01), Lipp
patent: 3713723 (1973-01-01), Buchan
patent: 3838906 (1974-10-01), Kumada
Pepperl, R. "A Solid-State Digital Light Deflector With DKDP Polarization Switches," Optica Acta vol. 24, No. 4 (1977) pp. 413-425.

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