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:
Nov. 13, 2012
Filed:
Apr. 07, 2011
Applicant:
Nobuo Shimizu, Suwa, JP;
Inventor:
Nobuo Shimizu, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A reflection-type screen which reflects projection light from a projector is provided. The screen includes a base one surface of which has a plurality of curved portions having concave or convex surfaces. Each of the curved portions of the base has a reflection area and a non-reflection area. A reflection film is formed on each of the reflection areas. An anti-reflection film is formed on each of the non-reflection areas. Each of the anti-reflection films has a plurality of transparent columnar components.