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:
Sep. 14, 2010
Filed:
Jan. 22, 2009
Applicant:
Makoto Fuse, Matsumoto, JP;
Inventor:
Makoto Fuse, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image display apparatus includes a light source that emits light-source light, an illumination system that makes the light-source light uniform, a color separation system that separates illumination light outputted from the illumination system into color light fluxes, color optical modulators illuminated with the color light fluxes separated by the color separation system, and an optical element having an element surface the film thickness distribution of which is configured in such a way that the film thickness changes in a non-uniform manner.