Patent · US Expired

Headlamp for power vehicles

US5264993A · kind A · utility

17Cited by

3References

4Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rainer Neumann · Krefeld, DE
Gerhard Lindae · Leonberg, DE
Kay Kolberg · Ottersweier, DE
Karl-Heinrich Preis · Bühlertal, DE
Thomas D. Weigold · Baden-Baden, DE

Key dates

Filing date	Nov 3, 1992
Grant date	Nov 23, 1993
Priority date	—
Expiry date	Nov 3, 2012

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S41/645
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A headlamp for a power vehicle comprises a reflector having an apex, a light source arranged in the apex of the reflector, and a dimming device which is formed so that in a position for high beam it allows light from the light source to reach a lower reflector region or allows the light to exit the same, and in a position for low beam it keeps away light from said light source from the lower reflector region or blocks light reflected from the lower reflector region. The light source is formed as a gas discharge lamp with an axial light arc, an upper reflector region is formed for producing a light distribution for low beam while the lower reflector region is formed for producing a light distribution for high beam.

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