Patent ID: 7622746

Claim:
A device capable of emitting light about a predetermined nominal wavelength in response to an applied electric current comprising: a light emitting portion comprising at least one semiconductor material; first optically transmissive, ohmic contact layer coupled to the light emitting portion; second optically transmissive, dielectric layer with a refractive index less than the at least one semiconductor material and of a thickness greater than one-quarter wavelength of the predetermined nominal wavelength divided by the index of refraction of the second optically transmissive, dielectric layer coupled to the first optically transmissive, ohmic contact layer; one or more third layers wherein each one or more third layers comprises a first dielectric layer of high-index of refraction and a second dielectric layer of low-index of refraction wherein the first dielectric layer is of a thickness about mλ/4n H , and the second dielectric layer is of a thickness about kλ/4n L ; and a metallic layer coupled to the one or more third layers and in contact with the second optically transmissive, dielectric layer and to the first optically transmissive, ohmic contact layer by more than one via through the one or more third layers and the second optically transmissive dielectric layer; wherein the reflectivity of the metallic layer to the predetermined nominal wavelength is greater than about 50 percent.