Vehicle headlamp

Details Vehicle headlamp Vehicle headlamp

2008-07-29

2008-07-29

Payne, Sharon E (Department: 2875)

Illumination

Supported by vehicle structure

Projection-type headlamp

C362S508000, C362S517000, C362S519000, C362S285000, C362S297000, C362S346000, C362S531000, C362S549000

Reexamination Certificate

active

07404657

ABSTRACT:
A light source is movable between a reference position located on an optical axis on the rear side of a rear side focal point of a projection lens and a forward shift position located on the forward side of the reference position. At a predetermined position of the reflecting surface of a reflector on the lower side of the optical axis, an auxiliary reflecting surface having a vertical section of substantially an elliptical shape is formed which has a first focal point set at the center of the light source at the forward shift position, and a second focal point set at the rear side focal point of the projection lens.

REFERENCES:
patent: 1818875 (1931-08-01), Wardwell
patent: 5339226 (1994-08-01), Ishikawa
patent: 6271629 (2001-08-01), Pace et al.
patent: 6386743 (2002-05-01), Futami et al.
patent: 2002/0085388 (2002-07-01), Uchida
patent: 2003/0049991 (2003-03-01), Kai et al.
patent: 2002-42516 (2002-02-01), None
patent: 2004-327187 (2004-11-01), None

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