Patent · US Expired

Gas discharge lamp with downconversion phosphor

US7141920B2 · kind B2 · utility

2Cited by

7References

9Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Koert Oskam · Utrecht, NL
Andries Meijerink · Soesterberg, NL
Rene Theodorus Wegh · Veldhoven, NL
Claus Feldmann · Aachen, DE
Detlef Uwe Wiechert · Alsdorf, DE
Thomas Juestel · Aachen, DE
Cornelis Reinder Ronda · Aachen, DE

Key dates

Filing date	May 30, 2002
Grant date	Nov 28, 2006
Priority date	—
Expiry date	Mar 19, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH01J61/44
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A gas discharge lamp has a gas discharge vessel filled with a gas filling suitable for a gas discharge which emits VUV radiation, with a phosphor coating containing a downconversion phosphor. The downconversion phosphor has, in a host lattice, a pair of activators of a first lanthanoid ion and a second lanthanoid ion; a sensitizer selected from the group formed by the thallium(I) ion, lead(II) ion and bismuth(III) ion; and samarium(II) ion co-activator.

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