Omnidirectional Reflector
First Claim
Patent Images
1. A light-generating device comprising:
- a substrate;
a reflective layer over the substrate;
a photonic crystal layer over the reflective layer; and
a light-emitting diode over the photonic crystal layer.
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Abstract
A system and method for manufacturing an LED is provided. A preferred embodiment includes a substrate with a distributed Bragg reflector formed over the substrate. A photonic crystal layer is formed over the distributed Bragg reflector to collimate the light that impinges upon the distributed Bragg reflector, thereby increasing the efficiency of the distributed Bragg reflector. A first contact layer, an active layer, and a second contact layer are preferably either formed over the photonic crystal layer or alternatively attached to the photonic crystal layer.
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Citations
20 Claims
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1. A light-generating device comprising:
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a substrate; a reflective layer over the substrate; a photonic crystal layer over the reflective layer; and a light-emitting diode over the photonic crystal layer. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A light-generating device comprising:
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a substrate; a reflective layer over the substrate; a collimator over the reflective layer; and a light-emitting diode over the collimator. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A light-emitting device comprising:
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a first substrate; a light-emitting diode over the first substrate; and a reflector located between the light-emitting diode and the first substrate, the reflector comprising; a reflective layer; and a photonic crystal layer. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification