COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE
First Claim
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1. A light emitting diode (LED) apparatus comprising:
- a substrate;
a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current; and
a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature light and the second color temperature light combine to produce a resulting light having a resulting color temperature and a resulting intensity value.
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Abstract
A color temperature tunable LED light source. An apparatus is provided that includes a substrate, a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current, and a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature light and the second color temperature light combine to produce light having a resulting color temperature and a resulting intensity value.
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Citations
34 Claims
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1. A light emitting diode (LED) apparatus comprising:
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a substrate; a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current; and a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature light and the second color temperature light combine to produce a resulting light having a resulting color temperature and a resulting intensity value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A light emitting apparatus comprising:
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first light emitting means for emitting light at a first color temperature; second light emitting means for emitting light at a second color temperature; and drive means for driving the first and second emitting means so that the first color temperature light and the second color temperature light combine to produce resulting light having a tunable color temperature. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification