Patent · US Expired

Sealed-beam headlamp having seating abutment on the outside of concave reflector

US4479072A · kind A · utility

10Cited by

6References

11Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Manfred Gaugel · Fürstenfeldbruck, DE
Walter Schonherr · Giengen an der Brenz, DE

Key dates

Filing date	Dec 28, 1981
Grant date	Oct 23, 1984
Priority date	—
Expiry date	Dec 28, 2001

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S41/194
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

To accurately position a halogen cycle incandescent lamp within a reflector o form a sealed-beam headlight, a carrier is provided for the lamp with a seating surface thereon, the lamp being accurately positioned and aligned with respect to the carrier and its seating surface by optical alignment outside of the reflector, the seating surface then being fitted against a matching abutment forming a locating surface on the reflector, the lamp-carrier subassembly being secured in the reflector, for example by form-fitting interengagement, adhesion, or the like. The reflector may have a large opening and the carrier in form of a disk, or smaller openings and the carrier in form of a ring inserted from the reflector end into the reflector.

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