LED lighting unit and vehicle lamp

Details LED lighting unit and vehicle lamp LED lighting unit and vehicle lamp

2008-01-25

2010-02-02

Husar, Stephen F (Department: 2875)

Illumination

Edge lighted panel

Light source

C362S613000, C362S623000, C362S624000, C362S625000, C362S545000, C362S511000, C349S065000

Reexamination Certificate

active

07654721

ABSTRACT:
The disclosed subject matter includes an LED lighting unit that uses a light guide, and a thin vehicle lamp using the light guide and which can conform to light distribution standards for vehicle lamps. The LED lighting unit can include a light guide having one flat surface formed with many light diffusing patterns, a plurality of LEDs located along one end surface of the light guide, and a reflection board including a reflector located on a bend portion thereof. The reflection board can be located adjacent and extend along the one flat surface of the light guide. The one flat surface can form a large light distribution area with a uniform brightness. The reflector located at the bend portion of the reflection board can form a narrow light distribution having a maximum brightness at a central portion. Thus, the LED light unit can conform to optical characteristics for a vehicle lamp. A vehicle lamp using the above-described LED light unit can be relatively thin.

REFERENCES:
patent: 6712482 (2004-03-01), Kawakami et al.
patent: 6890089 (2005-05-01), Haering et al.
patent: 7360937 (2008-04-01), Han et al.
patent: 2004363059 (2004-12-01), None

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