Method and System for Variable Color Lighting
First Claim
1. A method, for controlling color output of a variable color lighting system capable of emitting light within a color gamut, comprising the steps of:
- receiving a request for a target color;
converting said target color to a set of lighting system control parameters; and
applying said set of lighting system control parameters, thereby controlling the color output of said lighting system, characterized in that said step of converting comprises the steps of;
determining a target set of lighting system control parameters corresponding to said target color;
evaluating said target set of lighting system control parameters with respect to a range of allowable control parameters, thereby determining whether said target color is outside said color gamut; and
when said target color is outside said color gamut, determining an approximation set of control parameters, said approximation set corresponding to an output color (A1;
A2) within said color gamut, said output color being an approximation of said target color.
4 Assignments
0 Petitions
Accused Products
Abstract
A method, for controlling color output of a variable color lighting system (1) capable of emitting light within a color gamut, comprising the steps of receiving (10) a request for a target color (T), converting the target color (T) to a set of lighting system control parameters, and applying (15) the set of lighting system control parameters, thereby controlling the color output of the lighting system (1). The step of converting comprises the steps of determining (11) a target set (DT) of lighting system control parameters corresponding to the target color (T), evaluating (12) the target set (Dτ) of lighting system control parameters with respect to a range of allowable control parameters, thereby determining whether the target color (T) is outside the color gamut, and, when the target color (T) is outside the color gamut, determining (14) an approximation set (DA) of control parameters, the approximation set corresponding to an output color (A1; A2) within the color gamut, the output color (A1; A2) being an approximation of the target color (T).
19 Citations
18 Claims
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1. A method, for controlling color output of a variable color lighting system capable of emitting light within a color gamut, comprising the steps of:
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receiving a request for a target color; converting said target color to a set of lighting system control parameters; and applying said set of lighting system control parameters, thereby controlling the color output of said lighting system, characterized in that said step of converting comprises the steps of; determining a target set of lighting system control parameters corresponding to said target color; evaluating said target set of lighting system control parameters with respect to a range of allowable control parameters, thereby determining whether said target color is outside said color gamut; and when said target color is outside said color gamut, determining an approximation set of control parameters, said approximation set corresponding to an output color (A1;
A2) within said color gamut, said output color being an approximation of said target color. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18)
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11. A controller, for controlling color output of a variable color lighting system comprising at least two lighting devices, said controller being configured to:
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receive a request for a target color; convert said target color to a set of lighting system control parameters; and apply said set of lighting system control parameters to said lighting devices, thereby controlling the color output of said lighting system, characterized in that said controller is further configured to; determine a target set of lighting system control parameters corresponding to said target color; evaluate said target set of lighting system control parameters with respect to a range of allowable control parameters, thereby determining whether said target color is outside said color gamut; and when said target color is outside said color gamut, determine an approximation set of control parameters, said approximation set corresponding to an output color inside said color gamut, said output color being an approximation of said target color. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification