Patent ID: 8251897
Filing Date: 2012-08-28
Classification: A61B,G02B

Abstract:
1. An endoscope light source device comprising: at least one semiconductor light source; first optical fibers that have a single core, are inserted into a bendable endoscope, guide first light beams from said at least one semiconductor light source, and are arranged in plural rows in at least an angle portion of an insertion portion of said endoscope; an optical coupling circuit that is arranged at a distal end side of said endoscope with respect to said angle portion, and that couples said first light beams guided by said first optical fibers arranged in the plural rows to obtain a coupled light beam; at least one second optical fiber that guides said coupled light beam coupled by and outputted from said optical coupling circuit; and at least one wavelength conversion part that is arranged at a distal end side of an endoscope insertion section in said optical coupling circuit, and converts a part or all of said coupled light beam coupled by said optical coupling circuit and guided by said at least one second optical fiber into a converted light beam having a given wavelength by a phosphor.