Semiconductor light emitting devices include an alumina substrate, a light emitting diode on a face of the substrate and flexible silicone film that includes a silicone lens on the face of the substrate. The light emitting diode emits light through the silicone lens....http://www.google.es/patents/US7858998?utm_source=gb-gplus-sharePatente US7858998 - Semiconductor light emitting devices including flexible silicone film having a lens therein
Semiconductor light emitting devices including flexible silicone film having ...
