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:
Sep. 03, 2024
Filed:
Jan. 29, 2021
Applicant:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Inventors:
Ryuho Sato, Shizuoka, JP;
Takahiko Honda, Shizuoka, JP;
Assignee:
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 41/25 (2018.01); F21S 41/29 (2018.01);
U.S. Cl.
CPC ...
F21S 41/25 (2018.01); F21S 41/295 (2018.01);
Abstract
A lamp unit irradiates light emitted from a light source and reflected by a spatial light modulator, toward a front of the unit through a projection lens. The projection lens is constituted by a plurality of lenses disposed side by side in a front-rear direction of the unit. The plurality of lenses are supported by a common lens holder. In the plurality of lenses, a lens located on a rearmost side of the unit is constituted by a glass lens and remaining lenses are constituted by a resin lens.