Illumination system

1. An illumination system ( 1 ) for indirectly or directly illuminating an outer edge arrangement of a structure covered in tiles, such as for example a step ( 31 ) of a staircase, comprising

at least one elongate profile ( 2 ) that forms a base arm ( 6 ), a decorative arm ( 7 ) projecting from a free end of the base arm ( 6 ) and the outer surface of which forms a visible decorative surface ( 8 ) in the correctly arranged state, and a fastening arm ( 9 ) projecting from the other free end of the base arm ( 6 ), arranged opposite the decorative arm ( 7 ), wherein the fastening arm ( 9 ) is provided on its outside with at least one undercut recess ( 11 ),

at least one illuminant ( 3 ) that is fastened or can be fastened within the receiving space defined by the base arm ( 6 ), the decorative arm ( 7 ) and the fastening arm ( 9 ), and

at least one elongate diffusion disc cover ( 4 , 5 ) that can be fixed to the profile ( 2 ).

2. The illumination system ( 1 ) according to claim 1 , wherein the profile ( 2 ) is an extruded profile with a cross-section that remains the same over the entire length.

3. The illumination system ( 1 ) according to claim 1 , wherein the profile ( 2 ) is produced from aluminium or stainless steel.

4. The illumination system ( 1 ) according to claim 1 , wherein a fleece or a fabric is fastened to the outside of the fastening arm ( 9 ).

5. The illumination system ( 1 ) according to claim 1 , wherein at least one undercut recess ( 10 ) is provided on the outside of the base arm ( 6 ).

6. The illumination system ( 1 ) according to claim 1 , wherein a fleece or a fabric is fastened to the outside of the base arm ( 6 ).

7. The illumination system ( 1 ) according to claim 1 , wherein a limiting arm ( 12 ) projecting towards the decorative arm ( 7 ) is provided on the free end of the fastening arm ( 9 ).

8. The illumination system ( 1 ) according to claim 7 , wherein a holding arm ( 13 ) projecting towards the base arm ( 6 ) adjoins the limiting arm ( 12 ), said holding arm being positioned a distance away from the decorative arm ( 7 ).

9. The illumination system ( 1 ) according to claim 1 , wherein the decorative arm ( 7 ) and the fastening arm ( 9 ) extend parallel to one another and respectively at an angle of 90° in relation to the base arm ( 6 ).

10. The illumination system ( 1 ) according to claim 1 , wherein the diffusion disc cover ( 4 , 5 ) is substantially U-shaped and has a base section ( 16 ; 23 ) and two side sections ( 17 , 18 ; 24 , 25 ) projecting from the latter and lying opposite one another.

11. The illumination system ( 1 ) according claim 10 , wherein the first side section ( 17 ; 24 ) is made longer than the second side section ( 18 ; 25 ), in the correct state the illuminant ( 3 ) being positioned on the inner surface of the first side section ( 17 ; 24 ) in the region protruding with respect to the second side section ( 18 ; 25 ).

12. The illumination system ( 1 ) according to claim 11 , wherein there is formed in the region of the free end of the first side section ( 17 ; 24 ) an inwardly projecting protrusion ( 20 ; 26 ) which serves as a stop for the illuminant ( 3 ).

13. The illumination system ( 1 ) according to claim 10 , wherein the length of the side sections is chosen such that in the correctly arranged state the outer surface of the base section ( 16 ) terminates substantially flush with the free end of the decorative arm ( 7 ) of the profile ( 2 ).

14. The illumination system ( 1 ) according to claim 10 , wherein the first side section ( 24 ) has in the region of its free end a region ( 29 ) receding in the direction of the second side section ( 25 ) which is made such that in the correctly arranged state the outer surface of the protruding region ( 30 ) of the first side section ( 24 ) terminates substantially flush with the outer surface of the decorative arm ( 7 ) of the profile ( 2 ).

15. The illumination system ( 1 ) according to claim 1 , wherein, in order to fix the diffusion disc cover ( 4 , 5 ) to the profile ( 2 ) fastening means are provided which are made integrally with the profile ( 2 ) and the diffusion disc cover ( 4 , 5 ).

16. The illumination system ( 1 ) according to claim 15 , wherein the fastening means define a manually releaseable snap-on connection and are provided in particular in the form of protrusions ( 14 , 15 ) and recesses ( 21 , 22 ; 27 , 28 ) engaging with one another.

17. The illumination system ( 1 ) according to claim 1 , wherein the illuminant ( 3 ) is elongate in form, in particular in the form of a strip or a chain with a plurality of LEDs arranged over the latter.

18. An illumination system ( 1 ) for indirectly or directly illuminating an outer edge arrangement of a structure covered in tiles, such as for example a step ( 31 ) of a staircase, comprising

at least one elongate profile ( 2 ) that forms a base arm ( 6 ), a decorative arm ( 7 ) projecting from a free end of the base arm ( 6 ) and the outer surface of which forms a visible decorative surface ( 8 ) in the correctly arranged state, and a fastening arm ( 9 ) projecting from the other free end of the base arm ( 6 ), arranged opposite the decorative arm ( 7 ), wherein a fleece or a fabric is fastened to an outside of the fastening arm ( 9 ),

at least one illuminant ( 3 ) that is fastened or can be fastened within the receiving space defined by the base arm ( 6 ), the decorative arm ( 7 ) and the fastening arm ( 9 ), and

at least one elongate diffusion disc cover ( 4 , 5 ) that can be fixed to the profile ( 2 ).