A system comprising (i) a light emitting layer, (ii) a first lens, and a thermal conductor, wherein: - the light emitting layer comprises a luminescent material, wherein the luminescent material is configured to generate luminescent material light upon excitation with light source light from a first laser light source comprising a wavelength λ 1 selected from a wavelength in the UV, visible, and infrared, where the luminescent material can be excited, wherein the light emitting layer comprises a light receiving area having a light receiving area size A 1; - the first lens comprises a truncated ball shaped lens having a curved lens surface having a radius Ro relative to a central point, and a planar lens surface configured at a first distance d 1 from the central point, wherein the planar lens surface has a planar lens surface area size A 2, wherein the first lens comprises a lens material having an index of refraction n at said predetermined wavelength λ 1, wherein d 1 =x ∗ R 0 /n, wherein 0.9≤x≤1.1, wherein the planar lens surface area size A 2 is larger than the light receiving area size A 1, wherein the first lens is configured to concentrate light received at the curved lens surface to provide light emanating from the planar lens surface, wherein the planar lens surface is directed to the light receiving area; and - the thermal conductor is configured in thermal contact with one or more of the light emitting layer and the first lens, - the system further comprising the first laser light source configured to generate the first light source light, wherein the curved lens surface is configured in a light receiving relationship with the first laser light source and further comprising a second light source configured to generate second light source light having a spectral power distribution different from or equal to the first light source light and different from the luminescent material light, wherein the system is configured to generate lighting system light comprising the luminescent material light and wherein in an operation mode of the system the lighting system light further comprises the second light source light. - the light emitting layer comprises a luminescent material, wherein the luminescent material is configured to generate luminescent material light upon excitation with light source light from a first laser light source comprising a wavelength λ 1 selected from a wavelength in the UV, visible, and infrared, where the luminescent material can be excited, wherein the light emitting layer comprises a light receiving area having a light receiving area size A 1; - the first lens comprises a truncated ball shaped lens having a curved lens surface having a radius Ro relative to a central point, and a planar lens surface configured at a first distance d 1 from the central point, wherein the planar lens surface has a planar lens surface area size A 2, wherein the first lens comprises a lens material having an index of refraction n at said predetermined wavelength λ 1, wherein d 1 =x ∗ R 0 /n, wherein 0.9≤x≤1.1, wherein the planar lens surface area size A 2 is larger than the light receiving area size A 1, wherein the first lens is configured to concentrate light received at the curved lens surface to provide light emanating from the planar lens surface, wherein the planar lens surface is directed to the light receiving area; and - the thermal conductor is configured in thermal contact with one or more of the light emitting layer and the first lens, - the system further comprising the first laser light source configured to generate the first light source light, wherein the curved lens surface is configured in a light receiving relationship with the first laser light source and further comprising a second light source configured to generate second light source light having a spectral power distribution different from or equal to the first light source light and different from the luminescent material light, wherein the system is configured to generate lighting system light comprising the luminescent material light and wherein in an operation mode of the system the lighting system light further comprises the second light source light.