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:
Aug. 26, 2014
Filed:
May. 17, 2011
Tetsuaki Iwane, Kanagawa, JP;
Yoshihisa Aikoh, Aichi, JP;
Hideki Yamamoto, Kanagawa, JP;
Keisuke Homma, Kanagawa, JP;
Tetsuaki Iwane, Kanagawa, JP;
Yoshihisa Aikoh, Aichi, JP;
Hideki Yamamoto, Kanagawa, JP;
Keisuke Homma, Kanagawa, JP;
Sony Corporation, , JP;
Abstract
An optical device includes: a light synthesis prism that synthesizes incident light beams which are incident to a plurality of incidence surfaces and outputs the synthesized light beams; a light modulation unit that includes an optical compensation element and a reflective light modulation device; and a fixing member that fixes a reflective polarization element and the light modulation unit to the light synthesis prism so as to correspond to one of the incidence surfaces, wherein the light modulation unit includes a light blocking member that blocks light from reaching the light modulation unit and limits light with which the optical compensation element and the reflective light modulation device are irradiated, to light passing an aperture portion; and a heat insulating member that comes into contact with the light blocking member and the fixing member.