Method for controlling a tunable white fixture using a single handle
First Claim
1. A lighting fixture, comprising:
- a controller configured for receiving one or more values from a handle having a range of positions divided into multiple zones, and for controlling a driver, andthe driver configured for controlling a plurality of LEDs to produce light output having a combination of parameters,wherein the controller is further configured for;
determining whether a value received from the handle is within a first zone of the multiple zones;
when the received value is within the first zone, instructing the driver to control the plurality of LEDs to produce light output based on a first combination of parameters, wherein the first combination of parameters includes;
i) an intensity parameter that has a first intensity level within an intensity range of intensity levels associated with the first zone, the first intensity level dependent upon the value within the first zone, andii) a light parameter that has a first parameter level within a parameter range of light parameter levels associated with the first zone, the first parameter level dependent upon the value within the first zone,wherein the first combination of parameters includes at least the first intensity level and the first parameter level.
1 Assignment
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Accused Products
Abstract
A system allows a light fixture to have a wider range of color temperatures (CCT) while limiting the warmest temperature reached at full intensity. The CCT of the light output may be controlled independently of intensity across a certain range of CCT and dependent on intensity across another range. In an implementation, both intensity and CCT may be adjusted from a single handle, where the interface positions may be divided into multiple zones. In another implementation, intensity may be adjusted from a first handle, while CCT may be adjusted from a second handle. The CCT of the light output may be limited to cooler levels when the intensity is higher, and/or the intensity of the light may be limited to lower levels when the CCT is warmer.
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Citations
20 Claims
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1. A lighting fixture, comprising:
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a controller configured for receiving one or more values from a handle having a range of positions divided into multiple zones, and for controlling a driver, and the driver configured for controlling a plurality of LEDs to produce light output having a combination of parameters, wherein the controller is further configured for; determining whether a value received from the handle is within a first zone of the multiple zones; when the received value is within the first zone, instructing the driver to control the plurality of LEDs to produce light output based on a first combination of parameters, wherein the first combination of parameters includes; i) an intensity parameter that has a first intensity level within an intensity range of intensity levels associated with the first zone, the first intensity level dependent upon the value within the first zone, and ii) a light parameter that has a first parameter level within a parameter range of light parameter levels associated with the first zone, the first parameter level dependent upon the value within the first zone, wherein the first combination of parameters includes at least the first intensity level and the first parameter level. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling light output of a light fixture, the method comprising:
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receiving a value from a handle having a range of positions; determining whether the received value is within a first zone of values; when the received value is within the first zone of values; determining a first intensity level corresponding to the received value, wherein the first intensity level is within a first range of intensity levels associated with the first zone of values, determining a first light parameter level corresponding to the received value, wherein the first light parameter level is within a first range of light parameter levels associated with the first zone of values, and controlling a plurality of lighting elements to produce light with the first light parameter level and the first intensity level; and when the received value is outside the first zone of values, then determining a second light parameter level and a second intensity level that each correspond to the received value, wherein the second light parameter level is less than the first light parameter level and the second intensity is less than the first intensity, and controlling the plurality of lighting elements to produce light with the second light parameter and the second intensity. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A lighting fixture, comprising:
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a controller configured for receiving one or more values from a handle and for controlling light output of a plurality of lighting elements, wherein the light output has an intensity level and a light parameter level, the handle having a range of positions, and the plurality of lighting elements; wherein when the controller receives a value from the handle, the controller; determines whether the received value is within a first zone of values associated with a first range of positions of the handle; when the received value is within the first zone of values; determines a first intensity level corresponding to the received value, wherein the first intensity level is within a first range of intensity levels associated with the first range of positions of the handle, determines a first light parameter level corresponding to the received value, wherein the first light parameter level is within a first range of light parameter levels associated with the first range of positions of the handle, and controls the plurality of lighting elements to produce light with the first intensity level and the first light parameter level; and when the received value is within a second zone of values associated with a second range of positions of the handle, instructs the driver to control the plurality of lighting elements to produce light with a second intensity level and a second light parameter level, wherein the second light parameter level is within a second range of light parameter levels associated with the second range of positions of the handle. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification