Patent ID: 7893632

Claim:
A luminaire, comprising: an array of LEDs emitting light of at least one colour, a control system for controlling the light output of the luminaire, a reflector extending outward from a base, said LED array mounted on said base interior to said reflector; said reflector including a curved reflector sidewall; wherein said curved reflector sidewall includes an aperture; wherein the control system includes a detection unit detecting the light output of the luminaire and a control unit using information from the detection unit to control the output of individual LEDs of said array, said detection unit having: a photo sensor array mounted exterior of said reflector; and a lens installed in said aperture of said curved reflector sidewall, which is arranged in front of said photo sensor array such that said lens maps an image of said array of LEDs on to said photo sensor array; wherein said photo sensor array is divided into subareas, each of said subareas of said photo sensor array operable to detect light output from a single one of said LEDs; and a processing unit connected to said photo sensor array for generating signals corresponding to each of said subareas.