High Efficacy Semiconductor Light Emitting Devices Employing Remote Phosphor Configurations
First Claim
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1. A semiconductor light emitting apparatus comprising:
- a wavelength conversion element comprising wavelength conversion material; and
a plurality of light emitting diodes that are oriented to emit light to impinge upon the wavelength conversion element;
wherein the semiconductor light emitting apparatus produces greater than 250 lumens per watt at a color temperature of between 2000 K and 8000 K.
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Abstract
A semiconductor light emitting apparatus a semiconductor light emitting device configured to emit light inside a hollow shell including wavelength conversion material dispersed therein or thereon. A semiconductor light emitting apparatus according to some embodiments is capable of generating in excess of 250 lumens per watt, and in some cases up to 270 lumens per watt.
27 Citations
33 Claims
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1. A semiconductor light emitting apparatus comprising:
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a wavelength conversion element comprising wavelength conversion material; and a plurality of light emitting diodes that are oriented to emit light to impinge upon the wavelength conversion element; wherein the semiconductor light emitting apparatus produces greater than 250 lumens per watt at a color temperature of between 2000 K and 8000 K. - 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)
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25. A light emitting apparatus, comprising:
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a substrate; a plurality of light emitting diodes disposed on the substrate and connected in parallel; a transparent outer shell covering the substrate and the light emitting devices and defining a volume of space between the light emitting diodes and the shell; and an optical material remotely located at least a first distance away from the one or more light emitting devices for affecting light emitted from the one or more light emitting devices; wherein the semiconductor light emitting apparatus produces greater than 250 lumens per watt at a color temperature of between 2000 K and 8000 K. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33)
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Specification