Systems and methods for controlling color temperature
First Claim
1. A method for control of color temperature, the method comprising:
- receiving by at least one processor via a communications network information from an electric utility indicating a period of high energy use;
determining by the at least one processor to transition a color temperature of light emitted by a controllable-color temperature lighting load (CCTLL) from a first color temperature to a second color temperature based on the information received from the electric utility,wherein the CCTLL comprises a first discrete-spectrum light source and a second discrete-spectrum light source,wherein the first discrete-spectrum light source and the second discrete-spectrum light source emit light of different color temperatures, andwherein the second color temperature is a cooler color temperature than the first color temperature; and
based on the determination, controlling by the at least one processor the CCTLL in order to transition the CCTLL from emitting light of the first color temperature to emitting light of the second color temperature, wherein the CCTLL is configured to vary the color temperature of emitted light from the first color temperature to the second color temperature by decreasing an intensity level of the first discrete-spectrum light source and increasing or maintaining an intensity level of the second discrete-spectrum light source.
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Abstract
Controlling the color temperature of a composite light source including at least one discrete-spectrum light source is disclosed. For example, the color temperature of a composite light source including at least one discrete-spectrum light source may be determined and/or adjusted based on one or more of the ambient color temperature of a space, the actual temperature of the space, the relative brightness of the space, the occupancy of the space, a time clock, a demand response command (e.g., from an electrical utility), the absolute location of the composite light source, the location of the composite light source relative to other light sources, inputs from a camera or other external devices, the operation of appliances or other machines in the vicinity of the composite light source, media content being utilized in the vicinity of the composite light source, and/or other sensor inputs.
55 Citations
22 Claims
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1. A method for control of color temperature, the method comprising:
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receiving by at least one processor via a communications network information from an electric utility indicating a period of high energy use; determining by the at least one processor to transition a color temperature of light emitted by a controllable-color temperature lighting load (CCTLL) from a first color temperature to a second color temperature based on the information received from the electric utility, wherein the CCTLL comprises a first discrete-spectrum light source and a second discrete-spectrum light source, wherein the first discrete-spectrum light source and the second discrete-spectrum light source emit light of different color temperatures, and wherein the second color temperature is a cooler color temperature than the first color temperature; and based on the determination, controlling by the at least one processor the CCTLL in order to transition the CCTLL from emitting light of the first color temperature to emitting light of the second color temperature, wherein the CCTLL is configured to vary the color temperature of emitted light from the first color temperature to the second color temperature by decreasing an intensity level of the first discrete-spectrum light source and increasing or maintaining an intensity level of the second discrete-spectrum light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for control of color temperature, the apparatus comprising:
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at least one processor; at least one memory device having instructions stored thereon that when executed by the at least one processor, direct the at least one processor to; receive via a communications network information from an electric utility indicating a period of high energy use; determine to transition a color temperature of light emitted by a controllable-color temperature lighting load (CCTLL) from a first color temperature to a second color temperature based on the information received from the electric utility, wherein the CCTLL comprises a first discrete-spectrum light source and a second discrete-spectrum light source, wherein the first discrete-spectrum light source and the second discrete-spectrum light source emit light of different color temperatures, and wherein the second color temperature is a cooler color temperature than the first color temperature; and based on the determination, control the CCTLL in order to transition the CCTLL from emitting light of the first color temperature to emitting light of the second color temperature, wherein the CCTLL is configured to vary the color temperature of emitted light from the first color temperature to the second color temperature by decreasing an intensity level of the first discrete-spectrum light source and increasing or maintaining an intensity level of the second discrete-spectrum light source. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification