US 12,332,416 B2
Laser SMD package with phosphor and light incoupler
Hugo Johan Cornelissen, Escharen (NL); and Ties Van Bommel, Horst (NL)
Assigned to SIGNIFY HOLDING, B.V., Eindhoven (NL)
Appl. No. 18/265,159
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Nov. 26, 2021, PCT No. PCT/EP2021/083166
§ 371(c)(1), (2) Date Jun. 2, 2023,
PCT Pub. No. WO2022/117455, PCT Pub. Date Jun. 9, 2022.
Claims priority of application No. 20211784 (EP), filed on Dec. 4, 2020.
Prior Publication US 2023/0408802 A1, Dec. 21, 2023
Int. Cl. F21K 9/64 (2016.01); F21V 9/32 (2018.01); F21V 13/08 (2006.01); F21Y 115/30 (2016.01); G02B 19/00 (2006.01)
CPC G02B 19/0052 (2013.01) [F21K 9/64 (2016.08); F21V 9/32 (2018.02); F21V 13/08 (2013.01); G02B 19/0028 (2013.01); G02B 19/0061 (2013.01); F21Y 2115/30 (2016.08)] 15 Claims
OG exemplary drawing
 
1. A light generating system comprising a lighting unit, a luminescent element, an optical element, and a reflective element, wherein:
the lighting unit is configured to generate a beam of unit light;
the luminescent element comprises a luminescent material configured to convert at least part of the unit light into luminescent material light; wherein the luminescent element comprises a first luminescent element face and a second luminescent element face, wherein at least part of the luminescent material is configured between the first luminescent element face and the second luminescent element face;
the optical element comprises an external surface, wherein the optical element is configured between the luminescent element and the reflective element, wherein a first part of the external surface is directed to the second luminescent face, wherein a second part of the external surface is directed to the reflective element, and wherein a third part of the external surface is configured in a light receiving relationship with the lighting unit; wherein a first area A1 of the first part of the external surface of the optical element is smaller than a second area A2 of the second part of the external surface of the optical element, wherein the optical element is transmissive for the unit light;
the reflective element is configured to reflect unit light; and
the lighting unit is configured such that in an operational mode the lighting unit is configured to irradiate the first luminescent element face via transmission through the optical element and reflection at the reflective element.