Light system with improved color control
First Claim
1. A light system comprising:
- a plurality of light source modules arranged in at least a row in a system housing having an outer boundary and a diffuser to which the light from the plurality of light source modules is emitted, wherein each light source module comprises at least two light sources emitting light of different colors, wherein the plurality of light source modules comprises at least one first light source module that is located closer to the outer boundary of the system housing than second light source modules of the plurality of light source modules that are located farther away from the outer boundary than the at least one first light source module, anda color control unit configured to control, for each of the light source modules included in the plurality of light source modules, the light sources individually using a light source control signal,wherein the color control unit is configured such that, when a desired uniform color is to be generated at the diffuser based on the at least one first light source module and based on at least one of the second light source modules, the color control unit selects a first light source control signal for the light sources of the at least one first light source module that is different from a second light source control signal selected for the light sources of the at least one second light source module,wherein the plurality of light source modules are arranged relative one another such that the light from neighboring light source modules at least partially overlaps at a light mixing area present between the light source modules and the diffuser, wherein the light emitted by one of the second light source modules overlaps in the light mixing area with light of at least N other light source modules, whereas light emitted by the at least one first light source module overlaps in the light mixing area with light from M other light source modules, with M being smaller than N, wherein the color control unit is configured to control the light sources of the at least one first light source module and of the at least one second light source module in such a way that at least one of the light sources of the at least one first light source module and of the at least one second light source module compensates for a color difference generated based on M being smaller than N, andwherein the light sources of the plurality of light source modules are arranged linearly in direction of the row, wherein one of the second light source modules located proximate to the at least one first light source module comprises, in the direction of the outer boundary, a dominating light source that is located farther away from the outer boundary than at least one other light source of the one of the second light source modules, wherein the dominating light source emits a dominant color to a section of the light mixing area located above the at least one first light source module, wherein the color control unit is configured to compensate for the dominant color by controlling at least one of the light sources of the at least one first light source module and of the second light source modules to cancel out the influence of the dominant color in the section of the light mixing area located above the at least one first light source module.
3 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a light system, which comprises a plurality of light source modules arranged in at least a row in a system housing having an outer boundary, and diffuser to which the light from the plurality of light source modules is emitted. Each light source module comprises at least one light source emitting light of a predefined color. Furthermore, the plurality of light source modules comprise at least one first light source module which is located closer to the outer boundary of the system housing than second light source modules of the plurality of light source modules which are located further away from the outer boundary than the at least one first light source module. The system furthermore comprises a color control unit configured to control, for each of the light source modules of the light system, the at least one light source individually using a light source control signal. The color control unit is configured such that, when a desired color is to be generated at the diffuser, it selects a first light source control signal for the at least one light source of the at least one first light source module that is different from a second light source control signal selected for the at least one light source of the second light source modules.
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Citations
11 Claims
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1. A light system comprising:
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a plurality of light source modules arranged in at least a row in a system housing having an outer boundary and a diffuser to which the light from the plurality of light source modules is emitted, wherein each light source module comprises at least two light sources emitting light of different colors, wherein the plurality of light source modules comprises at least one first light source module that is located closer to the outer boundary of the system housing than second light source modules of the plurality of light source modules that are located farther away from the outer boundary than the at least one first light source module, and a color control unit configured to control, for each of the light source modules included in the plurality of light source modules, the light sources individually using a light source control signal, wherein the color control unit is configured such that, when a desired uniform color is to be generated at the diffuser based on the at least one first light source module and based on at least one of the second light source modules, the color control unit selects a first light source control signal for the light sources of the at least one first light source module that is different from a second light source control signal selected for the light sources of the at least one second light source module, wherein the plurality of light source modules are arranged relative one another such that the light from neighboring light source modules at least partially overlaps at a light mixing area present between the light source modules and the diffuser, wherein the light emitted by one of the second light source modules overlaps in the light mixing area with light of at least N other light source modules, whereas light emitted by the at least one first light source module overlaps in the light mixing area with light from M other light source modules, with M being smaller than N, wherein the color control unit is configured to control the light sources of the at least one first light source module and of the at least one second light source module in such a way that at least one of the light sources of the at least one first light source module and of the at least one second light source module compensates for a color difference generated based on M being smaller than N, and wherein the light sources of the plurality of light source modules are arranged linearly in direction of the row, wherein one of the second light source modules located proximate to the at least one first light source module comprises, in the direction of the outer boundary, a dominating light source that is located farther away from the outer boundary than at least one other light source of the one of the second light source modules, wherein the dominating light source emits a dominant color to a section of the light mixing area located above the at least one first light source module, wherein the color control unit is configured to compensate for the dominant color by controlling at least one of the light sources of the at least one first light source module and of the second light source modules to cancel out the influence of the dominant color in the section of the light mixing area located above the at least one first light source module. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A light system comprising:
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a plurality of light source modules arranged in at least a row in a system housing having an outer boundary; and a diffuser to which the light from the plurality of light source modules is emitted, wherein each light source module included in the plurality of light source modules comprises at least two light sources emitting light of different colors, wherein the plurality of light source modules comprises at least one first light source module that is located closer to the outer boundary of the system housing than second light source modules included in the plurality of light source modules that are located farther away from the outer boundary than the at least one first light source module, wherein the color emitted by the light system is controlled via a light source control signal for each of the light source modules, wherein, for each of the light source modules included in the plurality of light source modules, the light sources are controlled individually using the light source control signal, wherein, when a desired uniform color is to be generated at the diffuser based on the at least one first light source module and based on at least one of the second light source module, the first light source control signal is selected for the light sources of the at least one first light source module that is different from the second light source control signal selected for the light sources of the at least one second light source module, wherein the plurality of light source modules are arranged relative one another such that the light from neighboring light source modules at least partially overlaps at a light mixing area present between the light source modules and the diffuser, wherein the light emitted by one of the second light source modules overlaps in the light mixing area with light of at least N other light source modules, whereas light emitted by the at least one first light source module overlaps in the light mixing area with light from M other light source modules, with M being smaller than N, wherein the light source control signal is configured to control the light sources of the at least one first light source module and of the at least one second light source module in such a way that at least one of the light sources of the at least one first light source module and of the at least one second light source module compensates for a color difference generated based on M being smaller than N, and wherein the light sources of the plurality of light source modules are arranged linearly in direction of the row, wherein one of the second light source modules located proximate to the at least one first light source module comprises, in the direction of the outer boundary, a dominant light source that is located farther away from the outer boundary than at least one other light source of the one of the second light source modules, wherein the dominant light source emits a dominant color to a section of a light mixing area present above the at least one first light source module, wherein the dominant color is compensated for by controlling at least one of the light sources of the at least one first light source module and the second light source modules to cancel out the influence of the dominant color in the section of the light mixing area located above the at least one first light source module. - View Dependent Claims (9, 10, 11)
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Specification