Vehicular lamp

Details Vehicular lamp Vehicular lamp

2007-01-16

2007-01-16

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Special application

Vehicle

C315S20000A, C315S2090SC

Reexamination Certificate

active

10832065

ABSTRACT:
A vehicular lamp, including: a plurality of semiconductor light emitting devices connected in parallel; a plurality of current limiting units provided corresponding to the plurality of semiconductor light emitting devices, wherein the plurality of current limiting units connect with the corresponding semiconductor light emitting devices respectively in series, and limit electric current flowing through the corresponding semiconductor light emitting devices respectively; and a current control unit for changing electric current to be supplied to at least one of the plurality of semiconductor light emitting devices. When a wire of one of the plurality of semiconductor light emitting devices is broken, the current control unit increases the electric current to be supplied to at least one of the plurality of semiconductor light emitting devices of which a wire is not broken by causing at least a part of the electric current to flow via a path connected in parallel with corresponding one(s) of the plurality of current limiting units.

REFERENCES:
patent: 5498933 (1996-03-01), Nakamura
patent: 5666028 (1997-09-01), Bechtel et al.
patent: 6288497 (2001-09-01), Chang et al.
patent: 6417624 (2002-07-01), Ito et al.
patent: 6750620 (2004-06-01), Suzuki
patent: 295 15 223 (1995-11-01), None
patent: 102 14 423 (2003-10-01), None
patent: 10-217851 (1998-08-01), None
patent: WO-99/39319 (1999-08-01), None
Patent Abstracts of Japan; Publication No. 10-217851 dated Aug. 18, 1998 (1 pg.).
Official Action of the German Patent and Trademark Office dated Jan. 5, 2006 with English Translation (11 pages).

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