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. 22, 2022
Filed:
Jun. 22, 2021
Koito Manufacturing Co., Ltd., Tokyo, JP;
Hidetada Tanaka, Shizuoka, JP;
Kazutoshi Sakurai, Shizuoka, JP;
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Abstract
An optical unit includes: a light source; a rotating reflector configured to be rotated in a single direction with the rotational axis as the center of rotation while reflecting light emitted from the light source; and a projector lens configured to project light reflected by the rotating reflector in the light irradiation direction. The projector lens has a first lens region LRthat defines the first focal plane and a second lens region that defines the second focal plane that differs from the first focal plane. The light source is arranged such that, when the rotating reflector is set to the first rotational position, its virtual position is in the vicinity of the focal plane, and such that, when the rotating reflector is set to the second rotational position, its virtual position is in the vicinity of the focal plane.