Set-point validation for color/intensity settings of light fixtures
First Claim
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.
4 Assignments
0 Petitions
Accused Products
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.
57 Citations
61 Claims
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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:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for processing input color parameters of chromaticity and intensity to a lighting system and controlling illumination outputs of a plurality of light sources of the lighting system to generate a desired color of light corresponding to the input color parameters, the method comprising steps of:
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(a) determining whether the input color parameters of chromaticity and intensity places the desired color inside or outside of a gamut representing colors of light of which the lighting system is capable of generating, wherein the gamut is defined by a 3-dimensional coordinate system whereby each axis thereof corresponds to chromaticity or intensity values; and (b) driving the plurality of light sources to emit light having the desired color when the input color parameters of chromaticity and intensity places the desired color within the gamut. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 61)
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48. The method for correcting a color parameter corresponding to a desired color having specific chromaticity and intensity values that is input to a lighting system comprising a plurality of light sources for generating light, wherein the lighting system is not capable of generating light corresponding to the desired color, the method comprising steps of:
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(a) evaluating at least one of specific chromaticity and intensity values with respect to a gamut representing colors of light of which the lighting system is capable of generating, wherein, the gamut is defined by a 3-dimensional coordinate system whereby each axis thereof corresponds to chromaticity or intensity values, and the at least one of the specific chromaticity and intensity values is such as to place the desired color outside of the gamut; and (b) changing the at least one of the specific chromaticity and intensity values to select a color within the gamut. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60)
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Specification