Patent ID: 9695998
Date: 2017-07-04
CPC Classifications: F21S,F21V,F21W,F21Y,H05B

Claim:
1. A lighting system for providing illumination on a surface, comprising: a first array of light sources; a first reflector for reflecting the output of the first array of light sources to form a first annular illumination pattern or a portion of a first annular illumination pattern on the surface; a second array of light sources; a second reflector for reflecting the output of the second array of light sources to form a second annular illumination pattern or a portion of a second annular illumination pattern on the surface, arranged concentrically around the first annular illumination pattern or the portion of the first annular illumination pattern; and a controller for controlling the first and second arrays of light sources, wherein the controller is adapted to apply a cyclic function to the light source array outputs thereby to define one or more radially propagating rings or partial rings of illumination on the surface.