Patent ID: 7888868

Claim:
A light source comprising: a plurality of light emitting diode chips mounted on a surface of a substrate; an encapsulant that at least partially encapsulates said chips; a first light-directing layer comprising a first surface having a lens array thereon facing away from the light emitting diode chips and a second surface opposite the first surface, wherein the lens array is comprised of a plurality of adjacent lenses for each of the light emitting diode chips; and a second light-directing layer positioned between the encapsulant and first light-directing layer, the second light-directing layer comprising a first surface having a plurality of diffusing light-directing structures thereon facing toward the light emitting diodes and a second surface opposite the first surface, wherein the second surface of the second light-directing layer is directly adjacent to the second surface of the first light-directing layer, and wherein each diffusing light-directing structure is aligned, in a direction normal to said surface of said substrate, with one of said light emitting diode chips; wherein each of the lens array and the plurality of diffusing light-directing structures redirects light from the light emitting diode chips, thereby mixing the light.