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:
Feb. 26, 2008
Filed:
Nov. 23, 2004
Kazuya Miyagaki, Kanagawa, JP;
Kazuhiro Fujita, Tokyo, JP;
Takanobu Osaka, Kanagawa, JP;
Atsushi Takaura, Tokyo, JP;
Hiroyuki Sugimoto, Kanagawa, JP;
Yasuyuki Takiguchi, Kanagawa, JP;
Kazuya Miyagaki, Kanagawa, JP;
Kazuhiro Fujita, Tokyo, JP;
Takanobu Osaka, Kanagawa, JP;
Atsushi Takaura, Tokyo, JP;
Hiroyuki Sugimoto, Kanagawa, JP;
Yasuyuki Takiguchi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A spatial light modulator is disclosed that can be fabricated easily and is able to prevent degradation of a contrast ratio by suppressing a fringe effect. The spatial light modulator includes a light transmission substrate, a liquid crystal layer, a pixel array, and a phase difference generation unit provided between the light transmission substrate and the liquid crystal layer. A lens array is formed on the light transmission substrate, and the lens array has the same pitch as that of the pixel array.