Patent ID: 8136967

Claim:
An optical lens, comprising: a light transmissible body; a first surface of the light transmissible body having a first outer ring section and a first central section, wherein the first central section is curved inward, the first outer ring section is reflective, and the first outer ring section is curved towards a second surface; the second surface of the light transmissible body having a second outer ring section and a second central section, wherein the second central section has an inwardly tapered notch in the center, the second central section is reflective, the second outer ring section is curved towards the first surface, and an edge of the second surface is coupled to an edge of the first surface; wherein the first central section receives light emitted by a plurality of light emitting elements, the plurality of light emitting elements emit at least at different peak wavelengths, and the light exits the lens through the second outer ring section, and further wherein in the far field, the light has a substantially uniform color, and further wherein a second curvature of the second outer ring section causes light rays emitted directly from the plurality of light emitting elements that strike the second outer ring to be substantially totally internally reflected back into the optical lens and reflected from the first outer ring section, and a first curvature of the first outer ring section causes light exiting the optical lens to have a predetermined divergence angle with respect to an optical axis of the lens.