Vehicular lamp unit

Details Vehicular lamp unit Vehicular lamp unit

2007-05-31

2009-06-30

Choi, Jacob Y (Department: 2885)

Illumination

Supported by vehicle structure

Plural light sources

C362S507000, C362S487000, C362S543000, C362S241000

Reexamination Certificate

active

07553054

ABSTRACT:
The reflection surface of a reflector is formed by a parabolic cylindrical plane extending in the horizontal direction orthogonal to an optical axis. A light emitting element is configured to have five light emitting chips arranged in a T-shape and these light emitting chips are lighted in two lighting modes. In the first lighting mode, a special light emitting chip and a pair of the left and right side special light emitting chips which front end edges are aligned on the focal line of the parabolic cylindrical plane are lighted simultaneously, whereby a light distribution pattern having a narrow vertical width and a prolong shape is formed. In the second lighting mode, a special light emitting chip located at the center portion and two general light emitting chips disposed in series on the backward side thereof are lighted simultaneously, whereby a light distribution pattern having a large vertical width and a prolong shape is formed.

REFERENCES:
patent: 6851843 (2005-02-01), Muller et al.
patent: 6945672 (2005-09-01), Du et al.
patent: 7048412 (2006-05-01), Martin et al.
patent: 7134775 (2006-11-01), Oishi et al.
patent: 2002/0118548 (2002-08-01), Kuenstler et al.
patent: 10 2004 038 065 (2005-03-01), None
patent: 2003-31011 (2003-01-01), None
patent: 2005-141919 (2005-06-01), None

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