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:
Oct. 08, 2019
Filed:
Aug. 23, 2018
Stanley Electric Co., Ltd., Tokyo, JP;
Yasuyuki Zanma, Tokyo, JP;
STANLEY ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A light amount control mechanism for a vehicle headlamp can maintain high positional precision of a movable shade in its rotation axis direction to suppress variation in light distribution while allowing stable rotation of the movable shade. The light amount control mechanism includes a movable shade configured to be rotatably supported by a housing and selectively pivots to a first position or a second position to switch a shielding amount of light emitted from a light source, and an actuator configured to drive the movable shade. The light amount control mechanism for a vehicle headlamp may further include a stopper configured to position and hold the movable shade at the first position and the second position, the stopper being constituted by a V-shaped convex portion formed on any one of the movable shade and the housing and a V-groove-shaped concave portion formed on the other thereof as a pair.