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. 21, 2021
Filed:
Sep. 13, 2018
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Masayuki Takagi, Azumino, JP;
Akira Komatsu, Kamiina-gun, JP;
Takashi Takeda, Suwa, JP;
Toshiaki Miyao, Matsumoto, JP;
Tokito Yamaguchi, Azumino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 5/3058 (2013.01); G02B 5/3083 (2013.01); G02B 5/3016 (2013.01);
Abstract
A half mirrorprovided in an optical path bends the optical path, and a semi-transmissive polarizing plateincreases the transmittance of image light GL in a direction along alignment of the eyes of an observer while the virtual image display device has a wide angle of view and is downsized, thus reducing luminance unevenness between the central region and the peripheral region in the image in the direction and allowing the observer to view a high quality image.