PROBLEM TO BE SOLVED: To improve diagnostic accuracy while preventing an operator from feeling a sense of incompatibility by providing an endoscope apparatus capable of continuously changing into an observation image suitable for endoscope diagnosis with an observation magnification, with a change of the observation magnification by a zoom magnifying operation.SOLUTION: An endoscope apparatus 100 comprises: illumination means for illuminating an analyte while including a plurality of light sources 47 and 49 which generate light of spectrums different from each other imaging means 21 for imaging the analyte and observation magnification change means 81 for changing an observation magnification of the analyte imaged by the imaging means 21. The endoscope apparatus further comprises light quantity ratio change means for changing an emission light quantity ratio of the plurality of light sources 47 and 49 in accordance with the observation magnification set by the observation magnification change means. A relation of the observation magnification and the emission light quantity ratio of the plurality of light sources 47 and 49 changed by the light quantity ratio change means is continuously changed with the change of the observation magnification.COPYRIGHT: (C)2015,JPO&INPIT【課題】ズーム変倍操作による観察倍率の変更に伴って、その観察倍率での内視鏡診断に適した観察画像に連続的に変化させることができる内視鏡装置を提供し、これにより術者に違和感を持たせることなく、しかも診断精度を向上させることを目的とする。【解決手段】互いに異なるスペクトルの光を発生する複数の光源47,49を有して被検体を照明する照明手段と、被検体を撮像する撮像手段21と、撮像手段21により撮像される被検体の観察倍率を変更する観察倍率変更手段81と、を備えた内視鏡装置100であって、観察倍率変更手段により設定される観察倍率に応じて複数の光源47,49の出射光光量比を変更する光量比変更手段を有し、光量比変更手段により変更される観察倍率と複数の光源47,49の出射光量比との関係を、観察倍率の変化に伴って連続的に変化するよう構成した。【選択図】図1
