Patent · US Active

High-pressure discharge lamp having an ignition aid

US9053921B2 · kind B2 · utility

3Cited by

10References

11Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Johannes Buttstaedt · Falkensee, DE
Uwe Fidler · Berlin, DE
Stefan Lichtenberg · Falkensee, DE
Georg Rosenbauer · Wassertrüdingen, DE

Key dates

Filing date	Jul 28, 2011
Grant date	Jun 9, 2015
Priority date	—
Expiry date	Jul 28, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01J61/827
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A high-pressure discharge lamp having an ignition aid, may include a discharge vessel which is fitted in an outer bulb, wherein a UV enhancer is fitted as an ignition aid in the outer bulb, wherein the UV enhancer comprises a UV-transparent can-like container having an inner wall and end side and longitudinal axis, the container enclosing with its inner wall a cavity which is filled with a gas that can emit UV radiation, an inner vent electrode, which has at least one bend or kink, being fitted in the cavity in such a way that a bend or kink lie as close as possible to the inner wall of the container, and wherein an external electrode is applied externally in the vicinity of the container.

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