Headlamp unit for vehicle and headlamp unit assembly

Details Headlamp unit for vehicle and headlamp unit assembly Headlamp unit for vehicle and headlamp unit assembly

2007-04-24

2007-04-24

O'Shea, Sandra (Department: 2875)

Illumination

Supported by vehicle structure

Automobile

Reexamination Certificate

active

11131789

ABSTRACT:
A headlamp unit for a vehicle has two LEDs, two sub-reflectors, a main reflector and a convex lens. The sub-reflector reflects light emitted by the LED and has a reflective surface and an opening. The reflective surface is a part of an ellipsoid of revolution having a first focus position located to the LED and a second focus position located on an upper side of an optical axis. The opening is formed on an upper portion of the sub-reflector so as to substantially coincide with a horizontal plane including the optical axis. The main reflector is disposed so as to be opposed to the sub-reflectors and reflects light reflected by the sub-reflectors. The convex lens forward outputs light reflected by the main reflector to present a desired light distribution pattern.

REFERENCES:
patent: 2004/0160783 (2004-08-01), Tatsukawa et al.
patent: 2004/0228139 (2004-11-01), Taniuchi
patent: 2003-229006 (2003-08-01), None

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