Lens for improved color mixing and beam control of an LED light source

A lens for receiving light from an LED, comprising:

• a tapered cylindrical opening having a tapered sidewall surface extending into the lens from a light entry region configured for receiving the entirety of light from the LED, wherein the tapered cylindrical opening is centered along a central axis of the lens;
• a concave spherical surface extending across the entirety of a light exit region of the lens;
• and
• a total internal reflective (TIR) outer surface shaped as a compound parabolic concentrator (CPC) extending between the light entry region and the light exit region, wherein the TIR outer surface is symmetrical about the central axis, and the concave spherical surface is also symmetrical about the central axis.

An illumination device, comprising:

• a unibody lens having a reflective outer surface shaped as a compound parabolic concentrator (CPC) around a central axis between an diffusion manufactured light entry surface and a non-diffusion manufactured spherical concave light exit surface;
• a plurality of light emitting diodes proximate to the light entry surface and spaced from each other along a base plane perpendicular to the central axis;
• a first plurality of lunes upon the light entry surface, each having an elongated planar surface extending a decreasing distance from the central axis from the base plane to an upper plane that is parallel to the base plane;
• and
• a second plurality of lunes upon the reflective outer surface, each having a second elongated planar surface extending an increasing distance from the central axis from the base plane to the spherical concave exit surface.