The light source device includes a first light emitting unit that generates first light having an intensity in the first wavelength band and a first spectral spectrum, and a second wavelength band adjacent to the first wavelength band. A second light emitting unit that generates second light having a second spectral spectrum that has an intensity and overlaps a part of the first spectral spectrum, and the first light emitting unit and the second light emitting unit are simultaneously And a control unit that generates the first light with the light amount adjusted according to the first mixed light amount, which is the light amount of the second light mixed in the first wavelength band when emitting light.光源装置は、第１の波長帯域に強度を有しかつ第１の分光スペクトルを有する第１の光を発生する第１の発光部と、第１の波長帯域に隣接する第２の波長帯域に強度を有しかつ第１の分光スペクトルの一部に重複する第２の分光スペクトルを有する第２の光を発生する第２の発光部と、第１の発光部及び第２の発光部を同時に発光させる際に、第１の波長帯域内に混入する第２の光の光量である第１の混入光量に応じた調整を行った光量で第１の光を発生させる制御部と、を有する。
