A light source includes an LED that emits excitation light, a polymeric multilayer reflector that reflects the excitation light and transmits visible light, and a layer of phosphor material spaced apart from the LED. The phosphor material emits visible light when illuminated with the excitation light....http://www.google.es/patents/US20040145913?utm_source=gb-gplus-sharePatente US20040145913 - Phosphor based light sources having a polymeric long pass reflector
Phosphor based light sources having a polymeric long pass reflector
Número de solicitud: 10/726,997 Número de publicación: US 2004/0145913 A1 Fecha de presentación: 2 Dic 2003 Patente emitida: US7245072 ( Fecha de emisión 17 Jul 2007)
