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, 2004
Filed:
Jul. 25, 2002
Applicant:
Inventor:
Goichi Oda, Shizuoka, JP;
Assignee:
Koito Manufacturing Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 3/910 ; H02J 7/00 ; F21V 1/904 ;
U.S. Cl.
CPC ...
H05B 3/910 ; H02J 7/00 ; F21V 1/904 ;
Abstract
A vehicle light apparatus includes a discharge lamp as a dipped (low)-beam light source and a high-beam light source or a light source of an auxiliary light (incandescent lamp) as a substitutional light source of the discharge lamp. If the apparatus detects an input voltage from a power supply becoming equal to or greater than a threshold value in a state that only the discharge lamp is lit, the incandescent lamp is automatically lit on. To use the high-beam light source in place of the discharge lamp, light extinction lighting is performed or the light application direction is directed downward from the horizontal direction.