Patent · US Active

Gas discharge lamp comprising a helicoid discharge tube and an inner tube piece

US7876052B2 · kind B2 · utility

3Cited by

5References

15Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Andreas Hollstein · Ingolstadt, DE
Thomas Noll · Kipfenberg, DE

Key dates

Filing date	Apr 13, 2005
Grant date	Jan 25, 2011
Priority date	—
Expiry date	Sep 29, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a novel compact fluorescent lamp with a helical discharge tube 2 and a tube piece 8 which is fitted to it and can serve to accommodate an Hg source 14 and also as an exhaust tube, and to a corresponding production process.

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