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. 09, 2015
Filed:
Oct. 02, 2012
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Takahiro Totani, Suwa, JP;
Masayuki Takagi, Shiojiri, JP;
Toshiaki Miyao, Matsumoto, JP;
Akira Komatsu, Kamiina-gun, JP;
Takashi Takeda, Suwa, JP;
Takeshi Fujishiro, Shiojiri, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0176 (2013.01); G02B 2027/0181 (2013.01); G02B 2027/0178 (2013.01); G02B 27/0172 (2013.01);
Abstract
In a virtual image display device, direction adjustment of an image optical axis, i.e., angle adjustment of a direction of eyes of an observer can be performed by providing a cushion member or adjusting an amount of shift between an image display unit and a projection system, and thereby, strain on eyes of an observer in use may be reduced. Even when the virtual image display device is used over a long period, for example, stress on the observer may be suppressed.