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. 01, 2006
Filed:
Aug. 27, 2001
Toshiaki Tabuchi, Okayama, JP;
Shinya Sannohe, Neyagawa, JP;
Toshiaki Tabuchi, Okayama, JP;
Shinya Sannohe, Neyagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A projection-type imaging deviceincludes: a light source optical systemfor emitting source lightimage display elementseach having a display surfaceon which a plurality of micromirrorsare placed and driving the plurality of micromirrorsaccording to a control signal representing a prescribed image so as to reflect the source lightincident on the display surfacetoward a first direction and a second direction differing from the first direction so as to obtain first lightand second light, respectively; a prismfor transmitting the first lightand the second light; a projection optical systemfor projecting the first lighttransmitted by the prism; an absorption sectionfor absorbing the second lighttransmitted by the prismand cooling sectionsandfor cooling the absorption sectionby a liquid refrigerantThe first lightcarries information on the prescribed image, the liquid refrigerantis optically coupled to the prism, and the second lightreaches the absorption sectionvia the liquid refrigerant