Patent ID: 8154043
Filing Date: 2012-04-10
Classification: H01L

Abstract:
1. A packaged semiconductor light emitting device, comprising: a light emitting device positioned on a substrate; a first quantity of cured encapsulant material having a first index of refraction on the substrate and extending over the light emitting device; and a second quantity of cured encapsulant material having a second index of refraction, different from the first index of refraction, on the first quantity of cured encapsulant material, the first and second index of refraction being selected to provide a buried lens extending over the light emitting device; wherein an interface of the first quantity and the second quantity of cured encapsulant materials extends over an upper surface of the light emitting device to define the buried lens and changes a direction of a path of an emitted light pattern from the light emitting device at the interface.