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:
Apr. 06, 2010
Filed:
Jul. 27, 2007
Kenichi Takada, Shizuoka, JP;
Yusuke Nakada, Shizuoka, JP;
Masashi Tatsukawa, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A vehicle headlamp includes a projection lens through which an optical axis passes. The optical axis extends in a front-and-rear direction of a vehicle. The vehicle headlamp includes a light source disposed on a rear side of a rear focal point of the projection lens; a reflector which reflects a direct light from the light source toward a front direction so as to become close to the optical axis; a shade disposed between the projection lens and the light source and having an edge portion positioned near the rear focal point of the projection lens; and an auxiliary reflector disposed between the projection lens and a shade. The auxiliary reflector reflects a part of the light reflected by the reflector toward the projection lens such that an upward irradiation light is irradiated from the projection lens. The shade shields a part of the light reflected by the reflector and a part of the direct light emitted from the light source and forms a cutoff line of a light distribution pattern. A space is provided between the auxiliary reflector and the shade so as to maintain a light quantity of at least 75% of a main light distribution obtained by the light reflected from the reflector.