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. 13, 2016
Filed:
Nov. 26, 2013
Koito Manufacturing Co., Ltd., Tokyo, JP;
KOITO MANUFACTURING CO., LTD., Tokyo, JP;
Abstract
A rotary shade is disposed behind a projection lens to block a portion of light emitted from a light source. The rotary shade has a twisted end surface to form an edge projected as a peripheral edge of a light distribution pattern which changes position in relation to the rotation of the shade. The twisted end surface is arranged so that the closer the twisted end surface is to the projection lens the more the twisted end surface approaches the optical axis. The twisted end surface moves from the front to the back of a rear focal point in relation to the rotation of the rotary shade in the direction in which the illumination area of the light distribution pattern increases.