PROBLEM TO BE SOLVED: To provide a light source device for an endoscope capable of accurately estimating the life of a light source even when there are individual differences in light sources.SOLUTION: A light source device for an endoscope includes a light source for emitting illumination light, a strain generating part in which strain is generated depending on an amount of light of the illumination light emitted from the light source, strain measuring means provided to the strain generating part for measuring the stain in the strain generating part, and light source life estimating means for estimating the life of the light source based on the magnitude of the strain in the strain generating part measured by the strain measuring means.COPYRIGHT: (C)2015,JPO&INPIT【課題】光源に個体差がある場合でも、光源の寿命を正確に推定することが可能な内視鏡用光源装置を提供する。【解決手段】照明光を出射する光源と、光源から出射した照明光の光量に応じてひずみが発生するひずみ発生部と、ひずみ発生部に設けられ、ひずみ発生部のひずみを測定するひずみ測定手段と、ひずみ測定手段が測定したひずみ発生部のひずみの大きさに基づいて、光源の寿命を推定する光源寿命推定手段と、を備えることを特徴とする内視鏡用光源装置。【選択図】図1
