Patent ID: 8097865

Claim:
An illuminating device comprising: at least four light emitting diodes for emitting optical radiation in respectively different emission wavelength ranges and along respective beam path segments; a homogenizing unit for receiving and homogenizing the optical radiations of said light emitting diodes; at least one color splitter assigned to each of at least three of said light emitting diodes; each of said color splitters being reflective for the optical radiation of the light emitting diode corresponding thereto; said light emitting diodes and said color splitters being so arranged that the optical radiation emitted by each of said light emitting diodes is coupled into a common illuminating beam path segment leading to said homogenizing unit; a plurality of collimating units mounted in said beam path segments, respectively, to collimate the optical radiation emitted by corresponding ones of said light emitting diodes and passing to respective ones of said color splitters; and, said beam path segments corresponding to said light emitting diodes being branched into said common illuminating beam path segment to form a tree-like configuration causing all of said light emitting diodes to be at the same distance from said homogenizing unit.