Patent ID: 8624482

Claim:
A Light Emitting Diode (LED) device comprising: a substrate; and a reflector structure disposed below the substrate, the reflector structure comprising: a low-index total internal reflection layer (TIR) disposed below the substrate; a Distributed Bragg Reflector (DBR) disposed below the TIR; and a reflective metal layer disposed below the DBR, wherein the DBR comprises a first plurality of periods and a second plurality of periods, wherein each of the first plurality of periods includes a first layer of a high index dielectric material with a first thickness and a second layer of silicon dioxide with a second thickness, and wherein each of the second plurality of periods includes a first layer of the high index dielectric material with a third thickness and a second layer of silicon dioxide with a fourth thickness, wherein the TIR is a single layer of silicon dioxide that is thicker than any silicon dioxide layer of the DBR.