Methods and apparatus for controlling a color temperature of lighting conditions
First Claim
1. An apparatus, comprising:
- at least one first LED to generate first radiation having a first spectrum;
at least one second LED to generate second radiation having a second spectrum different than the first spectrum; and
at least one controller to control at least one of the first radiation and the second radiation so as to control at least a color temperature of visible radiation emanating from the apparatus.
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Accused Products
Abstract
Methods and apparatus in which at least one first LED generates first radiation having a first spectrum, and at least one second LED generates second radiation having a second spectrum different than the first spectrum. One or more controllers control at least one of the first radiation and the second radiation so as to control at least a color temperature of visible radiation. In one example, one or more sensors monitor at least one characteristic of sample radiation and provide one or more sensor signals to the one or more controllers, which in turn control at least the color temperature of the visible radiation based at least in part on the at least one sensor signal. In various implementations, the sample radiation may be ambient illumination (e.g., natural-light and/or light from other light sources), may be the visible radiation itself (e.g., to provide feedback to the one or more controllers), or generally any desired lighting condition to simulate.
267 Citations
103 Claims
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1. An apparatus, comprising:
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at least one first LED to generate first radiation having a first spectrum;
at least one second LED to generate second radiation having a second spectrum different than the first spectrum; and
at least one controller to control at least one of the first radiation and the second radiation so as to control at least a color temperature of visible radiation emanating from the apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A method, comprising acts of:
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A) energizing at least one first LED to generate first radiation having a first spectrum;
B) energizing at least one second LED to generate second radiation having a second spectrum different than the first spectrum; and
C) controlling at least one of the first radiation and the second radiation so as to control at least a color temperature of visible radiation. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97)
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98. A system, comprising:
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a first apparatus comprising;
at least one first LED to generate first radiation having a first spectrum;
at least one second LED to generate second radiation having a second spectrum different than the first spectrum; and
at least one first controller to control at least one of the first radiation and the second radiation so as to control at least a first color temperature of first visible radiation emanating from the first apparatus;
a second apparatus comprising;
at least one third LED to generate third radiation having a third spectrum;
at least one fourth LED to generate fourth radiation having a fourth spectrum different than the third spectrum; and
at least one second controller to control at least one of the third radiation and the fourth radiation so as to control at least a second color temperature of second visible radiation emanating from the second apparatus; and
at least one sensor to monitor at least one characteristic of sample radiation and provide at least one sensor signal to the at least one first controller and the at least one second controller, wherein the at least one first controller is configured to control at least the first color temperature of the first visible radiation based at least in part on the at least one sensor signal, and wherein the at least one second controller is configured to control at least the second color temperature of the second visible radiation based at least in part on the at least one sensor signal. - View Dependent Claims (99, 100, 101, 102, 103)
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Specification