Light unit

Details Light unit Light unit

1989-10-10

1991-05-07

Husar, Stephen F.

Illumination

Vehicle steering mechanism or element moves pivoted lamp or...

Tie rod element controlled

362307, 362309, 362310, B60Q 104

Patent

active

050141660

ABSTRACT:
A motor vehicle headlamp comprising a dished body having an ellipsoidal inner reflective surface. A lamp filament is disposed at an inner focal point of the surface. A diverging meniscus lens element having a smooth convex rear surface is disposed between the reflective surface and a front cover. The lens element has a smooth concave outer surface, although the latter may be a concave fresnel lens. The convex rear surface of the lens element reduces the risk of unwanted light scatter compared with the use of a concave rear surface.

REFERENCES:
patent: 1571139 (1926-01-01), Nolen
patent: 4577260 (1986-03-01), Tysoe
patent: 4811174 (1989-03-01), Kanzler et al.

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