Lighting assembly with a UV protected light source that emits visible light

1. A lighting assembly for illumination, the lighting assembly comprising:

a first light source for emitting visible light, the first light source comprising a light emitter and one or more luminescent materials,

a second light source for emitting UV light,

an UV filter allowing a transmission of visible light and absorbing or reflecting UV light,

wherein the UV filter is arranged in an optical path from the second light source towards the first light source.

2. A lighting assembly according to claim 1 , wherein the UV filter surrounds or encloses the first light source.

3. A lighting assembly according to claim 1 wherein the first light source comprises a solid state light emitter package comprising a solid state light emitter ( 210 ) for emitting the visible light, the solid state light emitter package being enclosed by the UV filter.

4. A lighting assembly according to claim 1 wherein the UV filter allows transmission of oxygen towards the second light source.

5. A lighting assembly according to claim 1 comprising:

a housing, a light exit window being provided in a wall of the housing for allowing the transmission of the visible light and the UV light into the ambient of the lighting assembly, and a light mixing chamber being provided in the interior of the housing for mixing light emitted by the first light source and the second light source,

wherein the first light source and the second light source are provided within the light mixing chamber.

6. A lighting assembly according to claim 5 , wherein the first light source is arranged on a wall of the light mixing chamber ( 304 ) opposite to the light exit window and, one or more surfaces of the first light source not in contact with the wall are provided with the UV filter.

7. A lighting assembly according to claim 5 , wherein the second light source is arranged at a position inside the light mixing chamber to prevent direct emission of the UV light through the light exit window.

8. A lighting assembly according to claim 1 at least comprising one of the following:

a plurality of first light sources,

a plurality of second light sources,

a plurality of UV filters,

wherein, if the lighting assembly comprises a plurality of first light sources.

9. A lighting assembly according claim 1 , wherein the first light source is capable of emitting visible light having a color point in the CIE XYZ color space within a distance smaller than 25 SDCM to the black body line in said color space.

10. A lighting assembly according to claim 1 , the lighting assembly comprising a light exit window, wherein the lighting assembly is configured to emit, in operation, an amount of the UV light through the light exit window, the amount of the UV light having a first radiant flux and the lighting assembly is configured to emit a second radiant flux of the visible light through the light exit window, a ratio between the first radiant flux and the second radiant flux is in a range from 0.01 to 0.0001.

11. A lighting assembly according to claim 1 , wherein the UV light comprising light in a spectral range from 280 nm to 350 nm.

12. A lamp for illumination comprising a lighting assembly according to claim 1 .

13. A retrofit light bulb for illumination, the retrofit light bulb comprising a light transmitting bulb and a lighting assembly according to claim 1 .

14. A retrofit light tube for illumination, the retrofit light tube comprising a light transmitting tube and a lighting assembly according to claim 1 .

15. A luminaire for illumination comprising a lighting assembly according to claim 1 .