Projector type headlamp

Details Projector type headlamp Projector type headlamp

1997-11-13

1999-05-11

Husar, Stephen

Illumination

Supported by vehicle structure

Projection-type headlamp

362538, 362305, B60Q1/00

Patent

active

059020393

ABSTRACT:
A projector type headlamp comprises expansion reflecting mirrors having an elliptic reflecting surface which has a first focus where a light source is provided and a second focus close to a projection lens and which is provided above a horizontal line passing through an optical center line between a main reflecting mirror and the projection lens and an auxiliary reflecting mirror having a parabolic reflecting surface which has a focus where the light source is provided and which is provided outside the projection lens. The width of a light distribution is expanded by the expansion reflecting mirrors and a spot high-illuminance portion is generated in the light distribution by the auxiliary reflecting mirror to expand a field of view.

REFERENCES:
patent: 4800467 (1989-01-01), Lindae et al.
patent: 4825343 (1989-04-01), Nakata

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