Solid State Lighting Devices Including Light Mixtures
First Claim
1. A solid state lighting apparatus comprising:
- a plurality of light emitting diodes (LEDs), each of the LEDs comprising an LED device configured to emit light having about a first dominant wavelength and a phosphor configured to receive at least some of the light emitted by the LED device and responsively emit light having about a second dominant wavelength;
wherein a combined light emitted by the LED device and the phosphor of a first one of the plurality of LEDs has a first color point and a combined light emitted by the LED device and the phosphor of a second one of the plurality of LEDs has a second color point that falls outside a seven step Macadam ellipse around the first color point.
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Accused Products
Abstract
A solid state lighting apparatus includes a plurality of light emitting diodes (LEDs). Each of the LEDs includes an LED device configured to emit light having about a first dominant wavelength and a phosphor configured to receive at least some of the light emitted by the LED device and responsively emit light having about a second dominant wavelength. A combined light emitted by the LED device and the phosphor of a first one of the plurality of LEDs has a first color point and a combined light emitted by the LED device and the phosphor of a second one of the plurality of LEDs has a second color point that falls outside a seven step Macadam ellipse around the first color point.
77 Citations
23 Claims
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1. A solid state lighting apparatus comprising:
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a plurality of light emitting diodes (LEDs), each of the LEDs comprising an LED device configured to emit light having about a first dominant wavelength and a phosphor configured to receive at least some of the light emitted by the LED device and responsively emit light having about a second dominant wavelength; wherein a combined light emitted by the LED device and the phosphor of a first one of the plurality of LEDs has a first color point and a combined light emitted by the LED device and the phosphor of a second one of the plurality of LEDs has a second color point that falls outside a seven step Macadam ellipse around the first color point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A solid state lighting apparatus comprising:
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a current source; and a string of light emitting diodes (LEDs) connected to the current source and configured to emit light in response to a drive current supplied by the current source, each of the LEDs in the string comprising an LED device configured to emit light having a first dominant wavelength and a phosphor configured to receive at least some of the light emitted by the LED device and responsively emit light having about a dominant wavelength that is different from the first dominant wavelength; wherein a combined light emitted by the LED device and the phosphor of a first one of the plurality of LEDs has a first color point and a combined light emitted by the LED device and the phosphor of a second one of the plurality of LEDs has a second color point that falls outside a seven step Macadam ellipse around the first color point. - View Dependent Claims (21, 22, 23)
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Specification