Set-point validation for color/intensity settings of light fixtures

Abstract

Disclosed examples of lighting systems having at least three light sources of different colors may be controlled by validating input settings representing chromaticity and/or intensity of desired light to be generated by determining if the respective lighting system is capable of generating the desired light. This may involve comparing the chromaticity and/or intensity to a three-dimensional gamut representing chromaticity and associated intensities that the lighting system is capable of generating. The top contour of the gamut represents the maximum intensities for every chromaticity which the lighting system is capable of generating. Specifically the top contour is defined by points representing the maximum attainable intensities that each light source is capable of generating and the maximum intensity attainable by the lighting system.

1 . A method for setting operational limitations of a lighting system comprising at least first, second and third light sources generating light of respective first, second and third colors wherein the lighting system is configured to output light containing controlled amounts of light generated by at least one of the first, second and third light sources, the method comprising steps of:
 (a) determining a first maximum attainable intensity of light by measuring light output from the lighting system where the first light source is turned on and the second and third light sources are turned off;   (b) determining a second maximum attainable intensity of light by measuring light output from the lighting system where the second light source is turned on and the first and third light sources are turned off;   (c) determining a third maximum attainable intensity of light by measuring light output from the lighting system where the third light source is turned on and the first and second light sources are turned off;   (d) determining a maximum intensity of light attainable by the lighting system represented by light generated by the first, second and third light sources; and   (e) setting the lighting system to determine whether or not desired light corresponding to a given input setting to the lighting system is within a three-dimensional gamut representing colors of light and corresponding attainable intensities that the lighting system is capable of generating wherein a top contour of the gamut is defined by points corresponding to the first, second and third maximum attainable intensities and the maximum intensity of light attainable by the lighting system.   
   
   
       2 - 61 . (canceled)