Vehicular lamp with current controlling unit

Details Vehicular lamp with current controlling unit Vehicular lamp with current controlling unit

2007-12-18

2007-12-18

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Special application

Vehicle

C315S082000, C315S291000, C315S312000, C315S247000

Reexamination Certificate

active

11090575

ABSTRACT:
There is provided a vehicular lamp that can inform walkers or drivers in the other vehicles of the existence of the moving vehicle even where the circumference of the vehicle is bright by emitting a light amount larger than that of normal times when the circumference is bright. The vehicular lamp that is used for a vehicle includes a semiconductor light-emitting element, and a current controlling unit operable to increase an electric current flowing into the semiconductor light-emitting element according to a signal output from a sensor depending on a brightness of the circumference of the vehicle when the circumference of the vehicle is bright.

REFERENCES:
patent: 5666028 (1997-09-01), Bechtel et al.
patent: 6403942 (2002-06-01), Stam
patent: 6495973 (2002-12-01), Allen, Jr.
patent: 6498440 (2002-12-01), Stam et al.
patent: 6507159 (2003-01-01), Muthu
patent: 2003/0193300 (2003-10-01), Mukherjee
patent: 2003/0230991 (2003-12-01), Muthu et al.
patent: 2004/0036418 (2004-02-01), Rooke et al.
patent: 2005/0088102 (2005-04-01), Ferguson et al.
patent: 2002-231014 (2002-08-01), None

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