The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 1995
Filed:
Jan. 28, 1993
Kuniharu Takizawa, Setagaya, JP;
Hiroshi Kikuchi, Setagaya, JP;
Yukihisa Osugi, Nagoya, JP;
Shoji Tange, Nagoya, JP;
Nippon Hoso Kyokai, both of, JP;
NGK Insulators, Ltd., both of, JP;
Abstract
A spatial light modulator includes at least a photoconductive layer, one transparent electrode film provided on one surface of the photoconductive layer, a light blocking layer provided on the other surface of the photoconductive layer, a dielectric multilayered film provided on the light blocking layer, a light modulation layer provided on the dielectric multilayered film, and the other transparent electrode film provided on the surface of the light modulation layer, said light modulation layer consisting of a liquid crystal material for changing intensity, phase or running direction of read-out light by applying a voltage, wherein the light blocking layer is an amorphous film consisting essentially of 5-45 atomic % of germanium, 17.5-92.5 atomic % of carbon and 2.5-77.5 atomic % of silicon. Thereby, the magnification of the intensity of read-out light to intensity of write-in light can be increased.