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:
Jan. 17, 1989
Filed:
Oct. 07, 1987
Gerrit Oversluizen, Eindhoven, NL;
Anne-Marie A Van Dongen, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
Luminescent alumino-silicate and/or alumino-borate glass comprising lanthanum and/or gadolinium and activated by Tb.sup.3+ and/or Ce.sup.3+ and have a composition comprising 35-85 mol % of SiO.sub.2 and/or B.sub.2 O.sub.3, 1-35 mol % of La.sub.2 O.sub.3 and/or Gd.sub.2 O.sub.3, 5-45 mol % of Al.sub.2 O.sub.3 and 0.5-30 mol % of Tb.sub.2 O.sub.3 and/or Ce.sub.2 O.sub.3. The La.sub.2 O.sub.3 and/or Gd.sub.2 O.sub.3 may be replaced up to not more than 50 mol % by Y.sub.2 O.sub.3, Sc.sub.2 O.sub.3, Lu.sub.2 O.sub.3, ZrO.sub.2, P.sub.2 O.sub.5 and/or alkaline earth metal oxides. The glass can be used in a luminescent screen, for example, of a low-pressure mercury vapour discharge lamp.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile