Patent · US Active

Halogen incandescent lamp

US7397192B2 · kind B2 · utility

1Cited by

6References

14Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Matthias Damm · Gaimersheim, DE
Christoph Krieglmeyer · Haslach im Kinzigtal, DE
Roland Stark · Bottrop, DE

Key dates

Filing date	Jul 5, 2005
Grant date	Jul 8, 2008
Priority date	—
Expiry date	Jan 23, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH01K1/325
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Disclosed is a halogen incandescent lamp having a lamp vessel, which is sealed at one end and in which at least one luminous element is accommodated, a vessel section 42 being in the form of a side reflector which extends only over a subregion of the lamp vessel circumference. A light-exit window 40 adjoins this vessel section 42 in the circumferential direction. According to the invention, the light-exit window 40 is comparatively slightly curved in cross section, the vessel section 42 forming the side reflector bulging out away from the light-exit window 40. This bulged-out region is preferably provided with a kidney-shaped constriction 46.

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