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:
Mar. 19, 2024
Filed:
Jul. 29, 2021
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Daiki Matsumoto, Suwa, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 17/08 (2006.01); G02B 5/26 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 5/26 (2013.01); G02B 17/08 (2013.01); G02B 2027/0178 (2013.01);
Abstract
An image light generation device generating image light, a semi-transmissive tilted mirror reflecting the image light from the image light generation device, and a concave semi-transmissive mirror reflecting, toward the semi-transmissive tilted mirror, the image light reflected by the semi-transmissive tilted mirror to form an exit pupil are provided, and the concave semi-transmissive mirror includes a partial reflective film having different reflectance according to wavelength, the semi-transmissive tilted mirror reflects the image light toward the partial reflective film.