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:
Apr. 17, 2012
Filed:
Mar. 26, 2008
Hiroshi Hasegawa, Chino, JP;
Akihiko Yamamoto, Yamagata-mura, JP;
Toshiki Fujimori, Shimosuwa-machi, JP;
Noritaka Uchibori, Suwa, JP;
Hiroshi Hasegawa, Chino, JP;
Akihiko Yamamoto, Yamagata-mura, JP;
Toshiki Fujimori, Shimosuwa-machi, JP;
Noritaka Uchibori, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An image display system that includes: a projector; and a screen device that displays a projection image being a projection result from the projector. In the image display system, the screen device includes a plurality of light diffusion units each having characteristics of light transmission and characteristics of light diffusion, and among the plurality of light diffusion units, the projection image is diffused by a second light diffusion unit after passing through a first light diffusion unit.