Patent · US Expired

Discharge vessel with excimer fill, and associated discharge lamp

US6734629B2 · kind B2 · utility

3Cited by

10References

9Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Erich Arnold · Naperville, US
Renate Hirrle · Augsburg, DE
Christina Wille · Friedberg, DE
Hans-Dieter Witzke · Berlin, DE

Key dates

Filing date	Jul 30, 2002
Grant date	May 11, 2004
Priority date	—
Expiry date	Jul 30, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C2218/111
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A discharge vessel with an excimer fill comprises a cap, electrodes and a fill having at least one noble gas and a halogen, which, when the lamp is operating, together form an excimer, the discharge vessel being manufactured from quartz glass. The inner wall of the discharge vessel is completely covered with a passivation layer of a metal oxide of the metals Al, Hf, Y or Sc or the mixed oxides thereof, the layer having an amorphous structure and its layer thickness being 20 to 200 nm.

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