公开(公告)号：DE50213209D1

公开(公告)日：2009-03-05

申请号：DE50213209

申请日：2002-05-08

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： FELDMANN CLAUS DR ,  JUESTEL THOMAS DR ,  RONDA CORNELIS DR ,  MAYR WALTER

IPC: C09K11/64 ,  C09K11/80 ,  C09K11/77 ,  H01J11/02 ,  H01J17/49

公开(公告)号：DE50210402D1

公开(公告)日：2007-08-16

申请号：DE50210402

申请日：2002-04-25

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： FELDMANN CLAUS DR ,  MEIJERINK ANDRIES PROF DR ,  OSKAM KOERT ,  PEIJZEL PAUL

IPC: C09K11/77 ,  C09K11/85 ,  H01J61/44 ,  H01J65/00

Abstract: Gas discharge lamp comprises a discharge vessel filled with a gas emitting VUV radiation; a luminescent coating containing down-conversion luminescent material; and devices for igniting and maintaining a gas discharge. The down-conversion luminescent material contains a pair of activators made from a first lanthanide ion and a second lanthanide ion, and a coactivator made form a third lanthanide ion in a lattice. Preferred Features: The first lanthanide ion is gadolinium (III) ion and the second lanthanum ion is holmium (III) ion. The third lanthanum ion is terbium (III) ion, dysprosium (III) ion, europium (II) ion, samarium (II) ion or manganese (II) ion. The lattice is made from a fluoride, preferably a fluoride of the composition M F3 where M = Al, In, Ga, Sc, Y, La or lanthanide.