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:
Aug. 08, 2017
Filed:
Jul. 06, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Takanao Enokishima, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 7/00 (2014.01); G03B 21/14 (2006.01); G02B 7/02 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/145 (2013.01); G02B 7/028 (2013.01); G03B 21/006 (2013.01);
Abstract
A projector includes an image formation apparatus that forms an image, a lens barrel that accommodates a projection lens that projects the formed image, and a light blocking portion that is configured as a member separate from the lens barrel, is located in a position between the image formation apparatus and the lens barrel, and blocks light to be incident on the lens barrel. The configuration of the projector allows blockage of light incident on the lens barrel and hence prevention of distortion of the lens barrel.