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:
Dec. 10, 2002
Filed:
Oct. 10, 2000
Applicant:
Inventor:
Hirohiko Ohshio, Shizuoka, JP;
Assignee:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21W / ;
U.S. Cl.
CPC ...
F21W / ;
Abstract
A beam switching device is provided for switching between a low beam and a high beam by rotating a shade for screening part of incident light given off from a discharge illuminant portion to a reflecting surface of a reflector . The shade rotates about a rotational axis A extending in a direction which inclines a predetermined angle &THgr; relative to a horizontal plane. A rotational locus of the shade can be inclined relative to a vertical plane. The beam switching device can also be inclined relative to the vertical plane. Thus, a vertical dimension h from an optical axis Ax to a lower end f the beam switching device is made short.