The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2005
Filed:
Apr. 25, 2002
Koert Oskam, Urecht, NL;
Paul Peijzel, Zeist, NL;
Andries Meijerink, Soesterberg, NL;
Claus Feldmann, Aachen, DE;
Koert Oskam, Urecht, NL;
Paul Peijzel, Zeist, NL;
Andries Meijerink, Soesterberg, NL;
Claus Feldmann, Aachen, DE;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A luminophore capable of down conversion has a host lattice with a pair of activators of a first lanthanoid ion and a second lanthanoid ion and a co-activator of a third lanthanoid ion. A gas discharge lamp fitted with a gas discharge vessel filled with a gas filling which is suitable for a gas discharge which emits VUV radiation, and has a luminophore coating containing the down conversion luminophore is environmentally friendly and has good lamp efficiency.