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:
Sep. 08, 2011
Applicants:
Satoru Nagarekawa, Matsumoto, JP;
Eiji Morikuni, Shiojiri, JP;
Nobutaka Minefuji, Azumino, JP;
Masayuki Okoshi, Matsumoto, JP;
Inventors:
Satoru Nagarekawa, Matsumoto, JP;
Eiji Morikuni, Shiojiri, JP;
Nobutaka Minefuji, Azumino, JP;
Masayuki Okoshi, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/22 (2006.01); G03B 21/28 (2006.01); G02B 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a projection optical system comprising: two lens groups, and a curved plane mirror, wherein the projection optical system including two story structure, and having bend means for bending at least two times the light incident from an electro-optic modulator.