ABSTRACT
Non-imaging optics transfer light from an emitter to a receiver. Kohler optics produce a stable output, independent of variations of the source. The non-uniform illumination of the receiver, or color separation, may be undesirable in many applications. Kohler optics may be used in solar energy concentration. The optical surfaces may be modified and replaced by several Kohler channels that act as an integrator. The optics are designed in two dimensions, and then given rotational symmetry. Closer to the bottom of the optic, the lenticulations become very small and the tesselation is changed for practical reasons. Kohler optics may be extended to three- dimentional (3-D) geometry, based on 3-D simultaneous multiple surface designs.
