Patent ID: 7607815
Filing Date: 2009-10-27
Classification: G02B,G09F,H01L,H05K

Abstract:
1. An extended light sources, comprising: a light source comprising a flexible substrate comprising a die mounting region and first and second attachment regions, a first flexible portion being disposed in said flexible substrate between said die mounting region and said first attachment region and a second flexible portion being disposed in said flexible substrate between said die mounting region and said second attachment region such that said flexible substrate is bendable in said first and second flexible portions; a plurality of dies bonded to said substrate in said die mounting region, each die comprising a semiconductor light emitting device configured to emit light therefrom; and a light pipe comprising a sheet of transparent material having top and bottom surfaces and a first edge surface, said light source being attached to said sheet such that a portion of said first attachment region is bonded to said top surface and a portion of said second attachment region is bonded to said bottom surface, said die attachment region being positioned opposite to said first edge such that at least portions of light emitted from said dies enters said sheet through said first edge, said first attachment region being disposed at a first angle in respect of said die mounting region as a result of said flexible substrate being bent in said first flexible portion, said second attachment region being disposed at a second angle in respect of said die mounting region as a result of said flexible substrate being bent in said second flexible portion, at least portions of said first and second attachment regions further being reflective and configured to reflect at least portions of light emitted from said dies and incident thereon towards said sheet and said first edge, said flexible substrate comprising a top surface and a bottom surface, said extended light source top surface being opposite to said edge, said extended light source further comprising a rigid member bonded to said bottom surface of said flexible substrate in said die mounting region, said flexible substrate comprising a connector region outside of said die mounting region and having a plurality of electrical contacts connected to electrical traces within said die mounting region, said connector region being configured to mate to a connector that is external to said light source, said electrical traces comprising traces connected to said die, first, second and third planar rigid sections being bonded to a bottom surface of said flexible carrier, said first, second and third planar rigid sections corresponding, respectively, to said first attachment region, said die mounting region, and said second attachment region.