Low-pressure gas discharge lamp with phosphor coating

US6734631B2 · kind B2 · utility

Assignee

• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Thomas Juestel · Aachen, DE
• Rainer Hilbig · Aachen, DE
• Claus Feldmann · Aachen, DE
• Hans-Otto Jungk · Eschweiler, DE
• Walter Mayr · Alsdorf, DE

Key dates

• Filing date: Jun 19, 2002
• Grant date: May 11, 2004
• Expiry date: Jun 19, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J61/48
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A low-pressure gas discharge lamp comprising a gas discharge vessel with a gas filling containing mercury, and comprising electrodes, means for igniting and maintaining a gas discharge, and a phosphor coating containing at least one phosphor layer and a UV-C phosphor and a phosphor that can be excited by UV-C radiation.