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:
Dec. 30, 2008
Filed:
Jul. 09, 2007
Applicants:
Daisuke Uchikawa, Matsumoto, JP;
Shigeo Nojima, Suwa, JP;
Inventors:
Daisuke Uchikawa, Matsumoto, JP;
Shigeo Nojima, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/29 (2006.01); G02F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A scan-type optical apparatus includes a light source device that emits a laser beam, an electro-optic element that conducts scan of the laser beam emitted from the light source device by varying refractive index distribution in accordance with the level of voltage to be applied, and a light blocking member disposed on an optical path of the laser beam emitted from the electro-optic element when no voltage is applied to the electro-optic element.