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. 08, 2021
Filed:
Jun. 21, 2019
Applicant:
Jvc Kenwood Corporation, Yokohama, JP;
Inventor:
Manabu Kobayashi, Yokohama, JP;
Assignee:
JVC KENWOOD CORPORATION, Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); B60K 35/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); B60K 35/00 (2013.01); G02B 27/01 (2013.01); G02B 27/0149 (2013.01); B60K 2370/155 (2019.05); B60K 2370/1529 (2019.05); B60K 2370/23 (2019.05); B60K 2370/31 (2019.05); B60K 2370/334 (2019.05); G02B 2027/012 (2013.01); G02B 2027/0159 (2013.01);
Abstract
A virtual image display device includes: a display unit that generates an image display light by modulating an illumination light; and a projection optical system that includes a concave mirror for reflecting the image display light toward a virtual image presentation plate and a convex lens provided between the display unit and the concave mirror. The display unit is provided at a position closer to the convex lens than a focal point, within a meridional plane, of a composite optical system formed by the virtual image presentation plate and the projection optical system.