An illumination light source includes four different types of LEDs, namely a blue light-emitting diode 11 emitting blue light, a blue-green light-emitting diode 12 emitting blue-green light, an orange light-emitting diode 13 emitting orange light and a red light-emitting diode 14 emitting red light....http://www.google.es/patents/US20050002191?utm_source=gb-gplus-sharePatente US20050002191 - Illumination light source
Número de solicitud: 10/859,481 Número de publicación: US 2005/0002191 A1 Fecha de presentación: 2 Jun 2004 Patente emitida: US7008078 ( Fecha de emisión 7 Mar 2006)
