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. 24, 2010
Filed:
Jun. 23, 2008
Applicant:
Takayoshi Kitagawa, Shizuoka, JP;
Inventor:
Takayoshi Kitagawa, Shizuoka, JP;
Assignee:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60Q 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vehicular lamp includes a semiconductor light source and a switching means arranged to switch between a first lighting mode, in which the semiconductor light source stays on, and a second lighting mode, in which the semiconductor light source repeatedly turns on and off. The lamp is arranged so that a peak current flowing through the semiconductor light source in the second lighting mode is smaller than that in the first lighting mode. The arrangement can help suppress overshooting and undershooting in the light source current.