公开(公告)号：DE50210401D1

公开(公告)日：2007-08-16

申请号：DE50210401

申请日：2002-04-24

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： FELDMANN KLAUS ,  MAYA ANGELOVA DR DOYTCHEVA ,  RONDA CORNELIS REINDER ,  JUESTEL THOMAS

IPC: C09K11/85 ,  H01J61/44 ,  C09K11/77

Abstract: Gas discharge lamp comprises a gas discharge vessel filled with a gas filling suitable for a gas discharge emitting vacuum ultraviolet (VUV) radiation; a luminescent coating containing a down-conversion luminescent material with a sensitizer; and devices for igniting and maintaining a gas discharge. The down-conversion luminescent material contains a first lanthanide ion, a second lanthanide ion and a sensitizer selected from copper (Cu (I)), silver (Ag (I)), gold (Au (I)), zinc (Zn (II)), gallium (Ga (III)), indium (In (III)), thallium (Tl (III)), germanium (Ge (IV)), tin (Sn (IV)) or lead (Pb (IV)) ions. An Independent claim is also included for the down-conversion luminescent material. Preferred Features: The host lattice is a fluoride. The down-conversion luminescent material contains a co-activator in an amount of 0.5 mol.%.