US 12,031,715 B2
Pixelated laser phosphor comprising ceramic phosphor tiles surrounded by phosphor particles in a medium
Ties Van Bommel, Horst (NL); Rifat Ata Mustafa Hikmet, Eindhoven (NL); Hugo Johan Cornelissen, Escharen (NL); and Olexandr Valentynovych Vdovin, Maarheeze (NL)
Assigned to SIGNIFY HOLDING, B.V., Eindhoven (NL)
Appl. No. 18/273,208
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Jan. 19, 2022, PCT No. PCT/EP2022/051146
§ 371(c)(1), (2) Date Jul. 19, 2023,
PCT Pub. No. WO2022/161831, PCT Pub. Date Aug. 4, 2022.
Claims priority of application No. 21153372 (EP), filed on Jan. 26, 2021.
Prior Publication US 2024/0084999 A1, Mar. 14, 2024
Int. Cl. C09K 11/08 (2006.01); C09K 11/02 (2006.01); C09K 11/77 (2006.01); F21V 9/32 (2018.01); F21V 9/38 (2018.01); F21V 9/40 (2018.01); H05B 33/18 (2006.01); H05B 33/20 (2006.01); F21W 131/20 (2006.01); F21W 131/30 (2006.01); F21Y 115/10 (2016.01); F21Y 115/30 (2016.01)
CPC F21V 9/38 (2018.02) [C09K 11/025 (2013.01); C09K 11/7701 (2013.01); F21V 9/32 (2018.02); F21V 9/40 (2018.02); F21W 2131/20 (2013.01); F21W 2131/30 (2013.01); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08)] 15 Claims
OG exemplary drawing
 
1. A light generating system for generating system light, comprising one or more light sources, a luminescent arrangement and a support;
the luminescent arrangement comprising an array of luminescent bodies, and a matrix at least partly configured between the luminescent bodies, wherein the luminescent bodies comprise a first luminescent material, wherein the matrix comprises a light transmissive material, wherein the light transmissive material comprises a second luminescent material, wherein the first luminescent material and the light transmissive material are different materials; and wherein the luminescent bodies are ceramic bodies;
wherein the light transmissive material comprises one or more of a glass, an inorganic polymeric material, an organic polymeric material, quarts and silica;
wherein the one or more light sources are configured to generate one or more beams of light source light, wherein the luminescent arrangement is configured in a light receiving relationship with the one or more light sources, wherein the first luminescent material and the second luminescent material are configured to convert at least part of the light source light received by the first luminescent material and the second luminescent material into first luminescent material light and second luminescent material light, respectively;
wherein the first luminescent material comprises a luminescent material of the type A3B5O12:Ce, wherein A comprises one or more of Y, Gd, Lu, and wherein B comprises one or more of Al, Ga, In and Sc;
wherein the one or more light sources comprise a laser diode or a superluminescent diode;
wherein the support comprises a thermally conductive material and being configured to support the luminescent bodies and the matrix;
wherein the system light comprises luminescent material light of one or more of the first luminescent material and the second luminescent material, and optionally light source light of the one or more light sources; and
wherein the system light is white light having a correlated color temperature (CCT) in the range of 2700 K and 5500 K.