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:
May. 23, 2017
Filed:
Sep. 25, 2013
Koninklijke Philips N.v., Eindhoven, NL;
Durandus Kornelius Dijken, Eindhoven, NL;
Dominique Maria Bruls, Eindhoven, NL;
Martin Hillebrand Blees, Eindhoven, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Hendrik Johannes Boudewijn Jagt, Eindhoven, NL;
Loes Johanna Mathilda Koopmans, Eindhoven, NL;
Manuela Lunz, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A wavelength converting member is provided, comprising a sealed capsule at least partly made of sintered polycrystalline ceramic, for example sintered polycrystalline alumina, said capsule defining at least one sealed cavity; and—a wavelength converting material contained within said sealed cavity. The wavelength converting member has high total forward transmission of light, high thermal conductivity, high strength and provides excellent protection for the wavelength converting member against oxygen and water. The wavelength converting member can advantageously be applied in a light emitting arrangement or as a color wheel for a digital image projector.