Patent · US Active

High-pressure discharge lamp having electrically conductive transparent coating

US7705540B2 · kind B2 · utility

3Cited by

8References

6Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Florian Bedynek · Berlin, DE
Michael Bonigk · Berlin, DE
Dirk Grundmann · Berlin, DE
Thomas Reiners · Giengen an der Brenz, DE
Conrad Schimke · Berlin, DE

Key dates

Filing date	Aug 25, 2005
Grant date	Apr 27, 2010
Priority date	—
Expiry date	Sep 26, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01J61/35
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a high-pressure discharge lamp having a transparent discharge vessel, an ionizable filling which is arranged in the discharge space of the discharge vessel and electrodes, which extend into the discharge space of the discharge vessel, for the purpose of producing a gas discharge, as well as power supply lines, which are passed out of the discharge vessel, for the purpose of supplying energy to the electrodes, the discharge vessel of the high-pressure discharge lamp being provided partially with an electrically conductive coating, with the result that a capacitive coupling is produced between the coating and at least one electrode and/or power supply line. As a result, the starting properties and the luminous efficiency of the lamp are improved.

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