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. 07, 2004
Filed:
Aug. 21, 2002
Applicant:
Inventor:
Nobuo Watanabe, Shiojiri, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 7/02 ;
U.S. Cl.
CPC ...
G02B 7/02 ;
Abstract
A projector which results in good contrast and high luminance by fine-adjusting a polarizer. The projector includes a polarizer angle adjustment mechanism in which a first frame arranged in the vicinity of an electrooptic device pivotally supports a second frame having a polarizer thereon. The second frame is pivoted by an adjustment member so that it can turn properly. By properly using the adjustment member, the polarization axes of the polarizer can be optimumly set, and a high-contrast and high-luminance image is thus presented.