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:
Jul. 21, 1992
Filed:
Jan. 25, 1991
Nozomu Ohkouchi, Yokosuka, JP;
Shigeo Shimizu, Yokohama, JP;
Hiromitsu Takenaka, Yokosuka, JP;
Toshio Konno, Hoya, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A spatial-light modulator provided with a first electrode formed by a transparent member that receives irradiation of write light corresponding to an optical image in order to form a charge image; a second electrode formed by a transparent member to receive read light irradiated in order to read a formed charge image and to discharge output light equivalent to a read charge image; an optical modulation layer provided to the first electrode side of the second electrode and formed by polymer dispersed liquid crystal material in order to change the intensity distribution of the read light irradiated via the second electrode in accordance with an electrical field intensity distribution due to the charge image; a photoconductive member provided between the first electrode and the optical modulation layer, formed with two different materials of at least amorphous silicon carbide and amorphous silicon as the primary components, and formed in a plural number of layers and having a laminated structure having an optical sensitivity that differs between the first electrode side and the second electrode side; and a dielectric mirror provided between the optical modulation layer and the photoconductive member, that reflects the read light modulated by the optical modulator in the direction of irradiation, and performs the reading of the charge image.