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:
Nov. 07, 2017
Filed:
Jan. 27, 2015
Philips Lighting Holding B.v., Eindhoven, NL;
Dmitri Anatolievich Chestakov, Eindhoven, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Stefan Willi Julius Gruhlke, Eindhoven, NL;
Ties Van Bommel, Eindhoven, NL;
Albert Bijlsma, Eindhoven, NL;
Dirk Kornelis Gerhardus De Boer, Eindhoven, NL;
Gerardus Everardus Marie Hannen, Eindhoven, NL;
Hendrik Jan Eggink, Eindhoven, NL;
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Abstract
A light emitting device () comprising at least one light source () adapted for, in operation, emitting first light () with a first spectral distribution, a light guide () made of a luminescent material and comprising a light input surface () and a light exit surface () extending in an angle different from zero to one another, the light guide further comprising a first further surface () extending parallel to and arranged opposite to the light exit surface, wherein the light guide is adapted for receiving the first light () with the first spectral distribution at the light input surface, converting at least a part of the first light with the first spectral distribution to second light () with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling the second light with the second spectral distribution out of the light exit surface. The light emitting device further comprises a phosphor element () arranged adjacent to the first further surface and a reflective element () arranged adjacent the phosphor element opposite to the first further surface (). The phosphor element is adapted for converting light incident from the light guide to third light () with a third spectral distribution and the light guide () is furthermore adapted for receiving the third light () with the third spectral distribution at the first further surface (), guiding the third light () with the third spectral distribution to the light exit surface () and coupling the third light with the third spectral distribution out of the light exit surface.