Light emitting devices
First Claim
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1. A light-emitting device comprising:
- a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region, wherein;
a surface of the first layer is configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer;
the surface of the first layer has a dielectric function that varies spatially according to a pattern; and
the pattern is configured so that light generated by the light-generating region that emerges from the light-emitting device via the surface of the first layer is more collimated than a Lambertian distribution of light.
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Abstract
Light-emitting devices, and related components, systems and methods are disclosed.
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Citations
29 Claims
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1. A light-emitting device comprising:
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a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region, wherein;
a surface of the first layer is configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer;
the surface of the first layer has a dielectric function that varies spatially according to a pattern; and
the pattern is configured so that light generated by the light-generating region that emerges from the light-emitting device via the surface of the first layer is more collimated than a Lambertian distribution of light. - 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, 28)
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25. A wafer, comprising:
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a plurality of light-emitting devices, at least some of the light-emitting devices comprising;
a multi-layer stack of materials including a light-generating region and a first layer supported by the light-generating region, a surface of the first layer being configured so that light generated by the light-generating region can emerge from the light-emitting device via the surface of the first layer, the surface of the first layer having a dielectric function that varies spatially according to a pattern, and the pattern being configured so that light generated by the light-generating region that emerges from the light-emitting device via the surface of the first layer is more collimated than a Lambertian distribution of light, wherein the wafer includes at least about five light-emitting devices per square centimeter. - View Dependent Claims (26, 27, 29)
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Specification