Light emitting devices with high light collimation
First Claim
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; and
a support;
wherein;
the light-generating region is between the first layer and the support;
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;
the pattern is formed of holes in the surface of the first layer;
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; and
the pattern has an ideal lattice constant and a detuning parameter with a value greater than zero.
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Accused Products
Abstract
Light-emitting devices, and related components, systems and methods are disclosed. The light-emitting device can include a multi-layer stack of materials and a support. The multi-layer stack of materials can include a light-generating region and a first layer supported by the light-generating. Thee light-generating region can be between the first layer and the support. The surface of the first layer can be 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 can have a dielectric function that varies spatially according to a pattern. The pattern can be formed of holes in the surface of the first layer. 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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Citations
46 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; and
a support;
wherein;
the light-generating region is between the first layer and the support;
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;
the pattern is formed of holes in the surface of the first layer;
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; and
the pattern has an ideal lattice constant and a detuning parameter with a value greater than zero. - 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 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; and
a support, wherein;
the light-generating region is between the first layer and the support;
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 quasi-crystalline pattern;
the quasi-crystalline pattern is formed of holes in the surface of the first layer;
the quasi-crystalline 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; and
the wafer includes at least about five light-emitting devices per square centimeter. - View Dependent Claims (21, 22, 23)
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24. 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; and
a support, wherein;
the light-generating region is between the first layer and the supports;
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 quasi-crystalline pattern;
the quasi-crystalline pattern is formed of holes in the surface of the first layer; and
the quasi-crystalline 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 Lanibertian distribution of light. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. 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; and
a support, wherein;
the light-generating region is between the first layer and the support;
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;
the pattern is formed of holes in the surface of the first layer;
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;
for the at least some of the light-emitting devices, the pattern has an ideal lattice constant and a detuning parameter with a value greater than zero; and
the wafer includes at least about five light-emitting devices per square centimeter. - View Dependent Claims (43, 44, 45, 46)
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Specification