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. 27, 2010
Filed:
Nov. 22, 2006
Norihiko Yamada, Suwa, JP;
Hiroshi Hasegawa, Suwa, JP;
Norihiko Yamada, Suwa, JP;
Hiroshi Hasegawa, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An edge blending device which suppresses an increase in a luminance of a projection screen in an overlap area in which projection lights projected from a plurality of projection units onto a screen overlap each other, is characterized by including: a light shielding unit holder which includes light shielding pattern formation portions which can form a light shielding pattern corresponding to the projection lights forming the overlap area; and a light shielding pattern drive controller which controls a drive of the light shielding unit holder in such a way that the light shielding pattern formation portions are positioned corresponding to the projection lights from the projection units.