ENDOSCOPE LIGHT SOURCE DEVICE AND ENDOSCOPE SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an endoscope light source device capable of stably obtaining illumination light having a target emission spectrum through easy control.SOLUTION: A green semiconductor light source 36 is a fluorescent type semiconductor light source constituted by an excitation light LED that emits blue excitation light LBe and a green fluorescent body that emits green fluorescence LGf by being excited by the blue excitation light LBe. A dichroic filter of a second dichroic mirror 80 in an optical path integration part 41 has transmission characteristics of removing at least the blue excitation light LBe from an emission spectrum of mixed light of the blue excitation light LBe and the green fluorescence LGf that are emitted by the green semiconductor light source 36, and functions as an excitation light cutoff filter for cutting off the blue excitation light LBe. The blue excitation light LBe has no influence on a light amount of blue light LB of a blue semiconductor light source 35, which realizes constant supply of illumination light having a target emission spectrum.