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:
Mar. 13, 2012
Filed:
Sep. 04, 2009
Satoru Nasukawa, Matsumoto, JP;
Takashi Yamamoto, Matsumoto, JP;
Satoru Nasukawa, Matsumoto, JP;
Takashi Yamamoto, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes: a light source; a light modulation device which modulates a light emitted from the light source and forms image light; a projection device which magnifies and projects the image light; and an exterior casing, wherein on a light exiting surface for the image light of the exterior casing, a first opening is formed and a projection direction change unit which opens and closes the first opening is provided, and the projection direction change unit has: a cover which has a second opening for passing the image light from the projection device and which is provided rotatably in an off-plane direction with respect to the light exiting surface and thus opens and closes the first opening; a shutter which is movably provided along an inner surface of the cover and thus opens and closes the second opening; and a reflection mirror which is provided on an inner surface of the shutter and reflects the image light from the projection device.