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:
Jun. 25, 2019
Filed:
Dec. 31, 2015
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Takashi Takeda, Suwa, JP;
Takahiro Totani, Suwa, JP;
Akira Komatsu, Kamiina-gun, JP;
Masayuki Takagi, Shiojiri, JP;
Toshiaki Miyao, Matsumoto, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/14 (2006.01); G02B 27/01 (2006.01); G02B 17/08 (2006.01); F21V 8/00 (2006.01); G02B 17/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 6/003 (2013.01); G02B 6/0028 (2013.01); G02B 17/008 (2013.01); G02B 17/086 (2013.01); G02B 2027/011 (2013.01); G02B 2027/013 (2013.01);
Abstract
An image relay optical system is provided with an optical coupling member before incidence of image light on a light guide member. Among a first light incident surface, a coupling member reflecting surface, and a first light emitting surface provided in the optical coupling member, the coupling member reflecting surface and the first light emitting surface are curved surfaces. Therefore, a large bright virtual image with reduced aberration can be displayed.