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:
Apr. 09, 2024
Filed:
Aug. 17, 2020
Signify Holding B.v., Eindhoven, NL;
Olexandr Valentynovych Vdovin, Maarheeze, NL;
Ties Van Bommel, Horst, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Martinus Petrus Joseph Peeters, Weert, NL;
Robert Van Asselt, Valkenswaard, NL;
SIGNIFY HOLDING, B.V., Eindhoven, NL;
Abstract
The invention provides a lighting device () comprising: —a first light source () configured to generate first light source light (), having a first light source light spectral power distribution, wherein the first light source () comprises a laser light source (), and wherein the first light source light () has an optical axis (); —a first converter material (), comprising a first luminescent material (), configured to convert at least part of the first light source light () into first luminescent material light () having a first luminescent material light spectral power distribution, wherein the first luminescent material light () has one or more wavelengths in the green and/or yellow wavelength range; —a second converter material (), comprising a second luminescent material (), configured to convert part of the first luminescent material light () into second luminescent material light () having a second luminescent material light spectral power distribution different from the first luminescent material light spectral power distribution, wherein the second luminescent material light () has one or more wavelengths in the orange and/or red wavelength range; wherein the first light source (), the first converter material (), and the second converter material () are configured such that first light source light () can only reach the second converter material () after scattering via the first converter material (); wherein the optical axis (O) is incident on the first converter material () and is not incident on the second converter material (); and —a first thermally conductive element () in thermal contact with at least part of the second luminescent material ().