Patent · US Expired

Fluorescent lamp with luminescent material layer thickness according to the geometrical discharge distribution

US6340862B1 · kind B1 · utility

3Cited by

12References

20Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Reinhard Lecheler · Leibnizweg, DE
Hermann Schweizer · Hopfen am See, DE
Michael Seibold · Schwäbisch Gmünd, DE

Key dates

Filing date	Dec 16, 1999
Grant date	Jan 22, 2002
Priority date	—
Expiry date	Dec 16, 2019

Classification

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

Abstract

A fluorescent lamp, in particular for the backlighting of liquid crystal display screens, having a discharge vessel with a gas filling, the discharge vessel having a fluorescent layer and an electrode structure for a dielectric impeded discharge, the electrode structure fixing a geometric distribution of partial discharges and the fluorescent layer having a thickness variation in accordance to the geometrical distribution of the partial discharges.

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