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. 07, 2021
Filed:
Feb. 19, 2020
Yazaki Corporation, Tokyo, JP;
Noriaki Narushima, Shizuoka, JP;
YAZAKI CORPORATION, Tokyo, JP;
Abstract
The head-up display device includes a light source; a condensing lens; a lens array diffusing light from the condensing lens; a liquid-crystal display unit emitting light from the lens array as display light; and a reflecting member reflecting the display light emitted from the liquid-crystal display unit and projecting the display light on a windshield. The lens array has, in an emitting surface, a plurality of lens surfaces projecting toward the liquid-crystal display unit and having an aspherical sectional shape, and, in the lens surface, the curvature radius of a part emitting display light to be projected on an upper part of the windshield is smaller than the curvature radius of a part emitting display light to be projected on a lower part of the windshield.