Laser activated remote phosphor system and vehicle headlights

1. A laser activated remote phosphor system, comprising:

a radiation source configured to emit excitation radiation;

a conversion element which has a phosphor and is able to be irradiated by the excitation radiation, wherein an input coupling surface of the conversion element has a delimitation line beyond which a central excitation spot of the excitation radiation radiates at least in sections; and

a multiplicity of through cut-outs engaged around the conversion element wherein in used light on the exit side of the laser activated remote phosphor system a ratio of an intensity distribution of yellow conversion radiation to blue, unconverted excitation radiation viewed approximately transversely with respect to the main emission axis has a color variance of less than or equal to 20%.

2. The laser activated remote phosphor system of claim 1 ,

wherein the central excitation spot completely covers the conversion element.

3. The laser activated remote phosphor system of claim 1 , wherein the multiplicity of through cut-outs is at least partially transparent and/or scattering for the excitation radiation.

4. The laser activated remote phosphor system of claim 1 , wherein the central excitation spot completely covers the multiplicity of through cut-outs.

5. The laser activated remote phosphor system of claim 1 , wherein the multiplicity of through cut-outs completely engages around the conversion element.

6. The laser activated remote phosphor system of claim 1 , wherein the multiplicity of through cut-outs consists at least substantially completely or completely of a material that is at least partially transparent and/or scattering for the excitation radiation.

7. The laser activated remote phosphor system of claim 1 , wherein the multiplicity of through cut-outs consists at least substantially completely or completely of an opaque material for the excitation radiation.

8. The laser activated remote phosphor system of claim 1 ,

wherein the conversion element has a shape that deviates from a circular shape.

9. The laser activated remote phosphor system of claim 8 ,

wherein the conversion element viewed approximately in a plane transversely with respect to the main emission direction has a shape that deviates from a circular shape.

10. The laser activated remote phosphor system of claim 1 ,

wherein the conversion element has in the edge region one or more cutouts.

11. The laser activated remote phosphor system of claim 1 ,

wherein the conversion element has a lower thickness in the edge region.

12. The laser activated remote phosphor system of claim 1 , wherein a confinement structure, which is opaque for the excitation radiation, engages around the perimeter side of the conversion element, or around the conversion element together with the multiplicity of through cut-outs.

13. The laser activated remote phosphor system of claim 1 ,

wherein an aperture is provided on the radiation exit side or the radiation entry side.

14. The laser activated remote phosphor system of claim 13 ,

wherein the aperture is arranged on the confinement structure.

15. The laser activated remote phosphor system of claim 1 , wherein the ratio viewed approximately transversely with respect to the main emission axis has a color variance of less than or equal to 10%.

16. The laser activated remote phosphor system of claim 1 , wherein the ratio viewed approximately transversely with respect to the main emission axis has a color variance of less than or equal to 5%.

17. The laser activated remote phosphor system of claim 1 ,

wherein the conversion element has, or consists of, a circle-segment-shaped sequence of phosphor regions.

18. The laser activated remote phosphor system of claim 1 ,

wherein the conversion element, or the conversion element together with the light-passage element, is/are arranged on a reflective element, and wherein the excitation radiation irradiates a surface of the conversion element and the used light is emitted from said surface.