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:
Jul. 26, 2011
Filed:
Aug. 18, 2010
Eiji Morikuni, Matsumoto, JP;
Masatoshi Yonekubo, Hara-mura, JP;
Toshihiko Sakai, Minamiminowa-mura, JP;
Shunji Kamijima, Hara-mura, JP;
Eiji Morikuni, Matsumoto, JP;
Masatoshi Yonekubo, Hara-mura, JP;
Toshihiko Sakai, Minamiminowa-mura, JP;
Shunji Kamijima, Hara-mura, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projection optical system including a projection lens, a first mirror that reflects a light from the projection lens, and a second mirror that widens an angle of a light from the first mirror by reflecting the light projects a light modulated according to an image signal from an optical engine unit. A third mirror reflects a light from the projection optical system. A screen transmits a light from the third mirror. An optical axis of the projection lens substantially matches an optical axis of the second mirror, and the light from the optical engine unit is shifted to a specific side from the optical axis of the projection lens.