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:
Oct. 10, 2006
Filed:
Apr. 29, 2004
Masashi Kitabayashi, Horigane-mura, JP;
Masashi Kitabayashi, Horigane-mura, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An optical device () includes: three optical modulators (A) for modulating respective color lights in accordance with image information; a cross dichroic prism () for combining the respective color lights modulated by the optical modulators (A); a base () made of heat-conductive material and fixed to upper and lower faces of the cross dichroic prism (); an irradiation-side polarization plate () having polarization films (AandB) as optical conversion films for converting an optical property of a light beam irradiated by the optical modulators (A) and substrates (AandB) made of heat-conductive material and provided with the polarization films (AandB) attached thereto; and an irradiation-side retaining plate () made of heat-conductive material for supporting and fixing the irradiation-side polarization plate (). The irradiation-side retaining plate () is fixed to a lateral face of the base ().