An illumination system includes a plurality of radiation generating sources, such as LED dies. A corresponding plurality of optical waveguides is also provided, with each waveguide having a first and a second end, with each first end being in optical communication with the corresponding LED die. An array...http://www.google.de/patents/US7360924?utm_source=gb-gplus-sharePatent US7360924 - Illumination system using a plurality of light sources