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:
Dec. 28, 2004
Filed:
Sep. 25, 2003
Shizuo Nishihara, Kanagawa, JP;
Yoshifumi Akaike, Kumamoto, JP;
Michio Nagaya, Kagoshima, JP;
Naoko Uno, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention provides a liquid crystal projector including a plurality of liquid crystal panels, a prism for compositing the modulated plural color lights to generate a color image, top and bottom metal plates disposed above and below the prism, and an optical system for magnifying and projecting the generated color image, wherein the liquid crystal panels are directly adhered to metal hold plates, and the metal hold plates are fixed to the top and bottom metal plates such that the emergent surfaces of the liquid crystal panels face the incident surfaces of the prism. Further, a closed space is provided between the incident surfaces of the prism and the emergent surfaces of the liquid crystal panels so as to prevent air contaminants from effecting the performance of the device.