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:
Jul. 24, 2012
Filed:
Apr. 12, 2011
Applicants:
Akira Shinbo, Shiojiri, JP;
Ryoji Katsuma, Matsumoto, JP;
Inventors:
Akira Shinbo, Shiojiri, JP;
Ryoji Katsuma, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A screen includes a plurality of structures arrayed in parallel in at least one direction of a first direction and a second direction perpendicular to the first direction on a reference surface parallel to the first direction and the second direction. The structures are arrayed such that at least one of a distance between central positions of the structures adjacent to each other and a size of the structure changes irregularly in at least one direction, in which the structures are arrayed in parallel, of the first and second directions.