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:
Oct. 06, 2015
Filed:
Jan. 27, 2012
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Jan Cornelis Kriege, Mierlo, NL;
Paulus Albertus Van Hal, Waalre, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Jan Cornelis Kriege, Mierlo, NL;
Paulus Albertus Van Hal, Waalre, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
A method for manufacturing a wavelength converting element () the method comprising providing () a polymeric carrier material () having a first wavelength converting material () dispersed or molecular dissolved therein; the first wavelength converting material () is adapted to convert light of a first wavelength to light of a second wavelength, deforming () the polymeric carrier material at a first temperature at or above the glass transition temperature thereof such that at least part of the polymeric carrier material () is crystallized; and annealing () the polymeric carrier material() at a second temperature below the melting temperature thereof. Treatment of a polymeric material() according to the invention improves the stability and lifetime of a wavelength converting material () comprised in a such a treated polymeric material. A polymeric material () treated according to the invention may comprise polymeric molecules having a degree of crystalline being 10% by volume or more.