High efficiency automotive LED optical system

Details High efficiency automotive LED optical system High efficiency automotive LED optical system

2007-04-11

2010-06-08

Lee, Jong-Suk (James) (Department: 2885)

Illumination

Supported by vehicle structure

Plural light sources

C362S543000, C362S326000, C362S329000, C362S334000, C362S335000

Reexamination Certificate

active

07731401

ABSTRACT:
An exterior automotive lamp may be formed with LED light sources by efficiently using the available light. The LEDs are arranged in an array to illuminate a central lens to produce the horizontal spread from the central portion of the LED beam. Meanwhile a reflector gathers the more disperse side-emitted portion of the LED beam and directs that light as an outer sheath to form a supplementary portion of the beam. The lamp efficiently provides a beam that may be adapted for highbeam, lowbeam, fog, or signal purposes.

REFERENCES:
patent: 6986593 (2006-01-01), Rhoads
patent: 7249877 (2007-07-01), Johnson et al.
patent: 2003/0156416 (2003-08-01), Stopa et al.
patent: 19704467 (1998-08-01), None
patent: 1270324 (2003-01-01), None
patent: WO 2004031649 (2004-04-01), None

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