METHOD AND CONTROL SYSTEM FOR CONTROLLING THE OUTPUT OF A LED LUMINAIRE

摘要

The present invention relates to a method of controlling the output of a luminaire comprising an array of LEDs emitting light of at least one color. The array comprises single color LED groups, each consisting of at least one LED. The method comprises the following steps for each LED group: - spectrally bandpass filtering the light emitted by the LED group by means of a filter device, wherein a filter characteristic of said filter device has a peak; detecting the spectrally filtered light from said filter device and generating a response signal, wherein the level of said response signal is related to an amount of detected spectrally filtered light; and - controlling the light output of said LED group at least partially on the basis of said response signal, comprising maximizing the level of said response signal by spectrally shifting the spectrum of the light emitted by the LED group and said filter characteristic in relation to each other. A control system for performing the method is also provided.