US 11,778,707 B2Granted

Settings yielding different spectra and similar color

AssigneeHarman Professional Denmark ApS

InventorJesper Gadegaard

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Abstract

Disclosed herein are methods for controlling light fixtures comprising unique color light sources with independently controllable luminous flux, comprising controlling a luminous flux of each of the light sources, wherein a spectral distribution of light emitted from the light sources upon being controlled according to settings within a plurality of setting is different between settings, and a color of light emitted from the light sources is similar or identical between settings. The methods may improve color rendering where a certain color of emitted light is required, e.g., where a certain prop or costume is better illuminated with one setting compared to another setting, drawing attention to certain objects in a scene, e.g., by choosing a setting which makes a certain object stand out, and/or providing an intriguing optical effect, e.g., by shifting between settings, which makes certain objects appear to change color while others appear to keep same color.

Claims20

Dependent claims

A method for controlling a light fixture, wherein the light fixture comprises a plurality of light sources including three or more light sources, wherein each of the light sources has a unique color, and wherein a luminous flux of each of the light sources is independently controllable, the method comprising:

obtaining a plurality of settings, each of the settings being indicative of a luminous flux of each of the light sources;
and
controlling a luminous flux of each of the light sources according to one or more of the settings,
wherein a spectral distribution of light emitted from the plurality of light sources upon being controlled according to one setting within the plurality of settings is different with respect to a spectral distribution of light emitted from the plurality of light sources upon being controlled according to another setting within the plurality of settings;
wherein a color of light emitted from the plurality of light sources upon being controlled according to one setting within the plurality of settings is identical to a color of light emitted from the plurality of light sources upon being controlled according to another setting within the plurality of settings;
and
wherein each setting within the plurality of settings corresponds to a superposition of a plurality of basis settings, wherein each basis setting is indicative of a luminous flux of each light source within a different strict subset of light sources of the plurality of light sources.

4 more elements

Dependencies are inferred from the claim text.