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:
Aug. 06, 2002
Filed:
Oct. 18, 2000
Hirohiko Ohshio, Shizuoka, JP;
Michio Tsukamoto, Shizuoka, JP;
Koito Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A vehicle headlamp is equipped with a shade driving unit for moving a movable shade which is capable of shading part of light incident on a reflector from the discharge light emitting portion of a discharge bulb between at least two positions where the incident light is shed in different degrees. The discharge bulb is fixedly supported by the reflector via a bulb supporting base and the movable shade and the shade driving unit are fitted to the bulb supporting base Thus, the light source bulb the movable shade and the shade driving unit together with the bulb supporting base can be operated integrally as a unit. The unit is prefabricated before being fitted to the reflector to facilitate the assembling of the lamp. Moreover, the precision of placement of the movable shade with respect to the discharge light emitting portion can also be improved.