Patent ID: 8602567

Claim:
In combination a light pipe and at least four input light sources emitting at least two different colors of light; wherein said light pipe comprises an input end, an output end, and a center axis extending between said input end and said output end; wherein said output end has a concave surface facing said input end and which is centered about said axis; wherein a center portion of said output end, surrounding said axis, is uncoated to allow light to pass therethrough; wherein the remaining portion of said output end has a reflective surface to recycle light beams which impact such reflective surface back towards said input end; wherein said input light sources are located proximate said input end for emitting light into said light pipe and are arranged in an array centered about said axis; and wherein said light pipe is dimensioned such that light rays emitted from each light source which impact said reflective surface are reflected back to a light source lying directly on the opposite side of the center axis.