Patent · US Expired

Headlights for vehicles

US7281828B2 · kind B2 · utility

1Cited by

4References

12Claims

0Family size

Assignee

Automotive Lighting Reutlingen GmbH · DE

Inventors

Ralf Steinhart · Reutlingen, DE
Michael Scholl · Gomaringen, DE
Friedemann Schlienz · Stuttgart, DE
Silke Barton · Reutlingen, DE

Key dates

Filing date	Jul 26, 2004
Grant date	Oct 16, 2007
Priority date	—
Expiry date	Mar 18, 2025

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S41/164
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention concerns vehicle headlights with two light functions, comprising a reflector (10) and a two-filament bulb (14), whose first spiral-wound filament (14′) generates a first light function and whose second spiral-wound filament (14″) generates a second light function, each light function being associated with a region (10′, 10″) of the reflector (10), wherein the second spiral-wound filament (14″) cooperates with a covering cap (18) which shields a portion of the light for the light function associated with this spiral-wound filament, which would otherwise impinge on the region (10′) of the reflector (10) which is associated with the first light function, wherein the second spiral-wound filament (14″) generates a turning and/or curve light and the regions (10′, 10″) of the reflector (10) are separated by a separating line (12) which extends in a segment of the reflector at an angle of between ±0 and 35°, in particular ±15 and 35°, with respect to the vertical line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.