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.

Date of Patent:
Nov. 22, 2022

Filed:

Nov. 29, 2019
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Toshiaki Miyao, Matsumoto, JP;

Masayuki Takagi, Azumino, JP;

Takashi Takeda, Suwa, JP;

Tokito Yamaguchi, Azumino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 27/14 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 6/0055 (2013.01); G02B 27/144 (2013.01); G02B 2027/0178 (2013.01);
Abstract

A light-guiding device includes a pair of light-guiding portions, a pair of light-incident portions that causes image light to be incident on the respective pair of light-guiding portions, and a pair of light-emitting portion that causes image light guided by the respective pair of light-guiding portions to exit outside, in which a pair of optical members including the pair of light-guiding portions are coupled by a central member having light transmissivity, and in which the central member includes a light-guide blocking structure that suppresses light from being incident from one end to another end of the central member by absorbing the light.


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