PROBLEM TO BE SOLVED: To constantly maintain the outgoing light amount ratio of LED light to other light with high accuracy when performing special light observation with an endoscope device.SOLUTION: A light source K1 composed of LEDs and fluorescent bodies, a light source K2 composed of LEDs for emitting light having a wavelength region different from that of the light source K1, and a storage part 71 for storing information showing a relation between an amplitude value and an outgoing light amount of a driving signal of each of the light sources K1, K2 are included. A control part 49 sets a first amplitude value of a driving signal to be supplied to the light source K1 and a second amplitude value of a driving signal to be supplied to the light source K2 on the basis of a target light amount to the entire outgoing light amount obtained by totaling the outgoing light amounts from the respective light sources K1, K2, the outgoing light amount ratios of the respective light sources K1, K2, and the information stored in the storage part 71, further generates a driving signal common to the light sources K1, K2 on the basis of the target light amount, changes the amplitude value of the common driving signal to the first amplitude value to generate a driving signal for the light source K1, and changes the amplitude value of the common driving signal to the second amplitude value to generate a driving signal for the light source K2.COPYRIGHT: (C)2015,JPO&INPIT【課題】内視鏡装置で特殊光観察を行う際に、LED光と他の光との出射光量比を高い精度で一定に保つ。【解決手段】LED及び蛍光体からなる光源K1と、光源K1とは異なる波長域の光を出射するLDからなる光源K2と、光源K1,K2の各々の駆動信号の振幅値と出射光量との関係を示す情報を記憶する記憶部71とを備え、制御部49は、光源K1,K2の各々からの出射光量を合計した全出射光量に対する目標光量と、光源K1,K2の各々の出射光量比と、記憶部71に記憶されている前記情報とに基づいて、光源K1に供給する駆動信号の第一の振幅値と、光源K2に供給する駆動信号の第二の振幅値を設定し、更に、目標光量に基づいて光源K1,K2に共通の駆動信号を生成し、共通の駆動信号の振幅値を第一の振幅値に変更して光源K1用の駆動信号を生成し、共通の駆動信号の振幅値を第二の振幅値に変更して光源K2用の駆動信号を生成する。【選択図】図2
