Method for controlling a tunable white fixture using a single handle
First Claim
1. A lighting fixture, comprising:
- a controller configured for receiving multiple values, each value of the multiple values received from a respective handle having a range of positions divided into multiple zones,the controller further configured for controlling a driver,the driver configured for instructing a plurality of LEDs to produce light output; and
the plurality of LEDs;
wherein each zone of the multiple zones corresponds to a value range of the respective handle,wherein each received value of the multiple values is associated with a respective zone, and is within the corresponding value range of the respective zone,wherein, when the controller receives a first value of the multiple values, the controller;
determines a first handle from which the first value is received and a first zone associated with the first value;
determines a first parameter associated with the first zone and the first handle, the first parameter describing a quality of the light output;
determines a first level of the first parameter corresponding to the first value;
determines, for each additional value of the multiple values, an additional handle from which the additional value is received, an additional zone associated with the additional value, and an additional parameter associated with the additional zone and the additional handle,determines, for each additional value of the multiple values, an additional level of the additional parameter corresponding to the additional value; and
instructs the driver to control the plurality of LEDs to produce light with a combination of the first level of the first parameter and each additional level of each additional parameter.
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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.
154 Citations
20 Claims
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1. A lighting fixture, comprising:
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a controller configured for receiving multiple values, each value of the multiple values received from a respective handle having a range of positions divided into multiple zones, the controller further configured for controlling a driver, the driver configured for instructing a plurality of LEDs to produce light output; and the plurality of LEDs; wherein each zone of the multiple zones corresponds to a value range of the respective handle, wherein each received value of the multiple values is associated with a respective zone, and is within the corresponding value range of the respective zone, wherein, when the controller receives a first value of the multiple values, the controller; determines a first handle from which the first value is received and a first zone associated with the first value; determines a first parameter associated with the first zone and the first handle, the first parameter describing a quality of the light output; determines a first level of the first parameter corresponding to the first value; determines, for each additional value of the multiple values, an additional handle from which the additional value is received, an additional zone associated with the additional value, and an additional parameter associated with the additional zone and the additional handle, determines, for each additional value of the multiple values, an additional level of the additional parameter corresponding to the additional value; and instructs the driver to control the plurality of LEDs to produce light with a combination of the first level of the first parameter and each additional level of each additional parameter. - View Dependent Claims (2, 3, 4)
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5. A lighting fixture, comprising:
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a controller configured for receiving a value from a first handle, receiving a value from a second handle, and controlling a driver, the driver configured for instructing a plurality of LEDs to produce light output having a color temperature and an intensity; and the plurality of LEDs; wherein the first handle has multiple zones of values, and a first zone of the multiple zones corresponds to a first range of values of the first handle, wherein, when the controller receives a first value from the first handle and a second value from the second handle, the controller; determines a color temperature level and an intensity level corresponding to the second received value; determines whether the first received value is within the first zone of values; and when the first received value is within the first zone of values; determines a level of a parameter corresponding to the first received value, the parameter describing a quality of the light output other than the color temperature and intensity, and instructs the driver to control the plurality of LEDs to produce light with a combination of the color temperature level, the intensity level, and the level of the parameter. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A method of independently adjusting multiple parameters of light output produced by a plurality of LEDs, the method comprising:
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receiving a first value from a first handle and a second value from a second handle, wherein the first handle has multiple zones of values, and a first zone of the multiple zones corresponds to a first range of values of the first handle; determining whether the first received value is within the first zone of values; determining a requested color temperature and a requested intensity corresponding to the second received value; and responsive to determining that the first received value is within the first zone of values; determining a level of an parameter corresponding to the first received value, the parameter describing a quality of the light output other than the color temperature and intensity, and instructing a driver to control the plurality of LEDs to produce light with a combination of the requested color temperature, the requested intensity, and the level of the parameter. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification