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:
Aug. 25, 2026

Filed:

Jun. 27, 2024
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Takashi Takeda, Suwa, JP;

Mitsutaka Ide, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 3/12 (2006.01); G02B 6/34 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 6/34 (2013.01); G02B 2027/0178 (2013.01);
Abstract

A virtual image display device includes: a first lens that has a positive refractive power and on which video light is incident from the display element, a first prism on which the video light passed through the first lens is incident, a second prism that is bonded to the first prism, a polarized light separation film that is provided at a bonding site of the first prism and the second prism, a second lens that is disposed facing an outer surface of the first prism, a transmissive mirror that is formed on a convex surface of the second lens, a quarter-wavelength plate disposed between the outer surface and the flat surface of the second lens, and a compensation lens that has a shape obtained by inverting the convex surface of the second lens and that is bonded to the convex surface.


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