Patent · US Expired

Dielectrically impeded discharge lamp with a spacer

US6879108B1 · kind B1 · utility

1Cited by

4References

8Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Michael Ilmer · Augsburg, DE
Angela Eberhardt · Augsburg, DE
Michael Seibold · Schwäbisch Gmünd, DE

Key dates

Filing date	Apr 19, 2000
Grant date	Apr 12, 2005
Priority date	—
Expiry date	Apr 19, 2020

Classification

Technology area (CPC H)Electricity
CPC primaryH01J65/046
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A discharge lamp, suitable for operation by means of dielectrically impeded discharge, having a discharge vessel with two at least partially parallel vessel walls (2; 7), and at least one spacer (1) made from optically transparent insulating material. The or each spacer (1) is in contact with the two vessel walls (2; 7) via bearing surfaces. The or each spacer has an optically diffuse surface (8) at least in the region of one bearing surface.

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