To provide an endoscope and an endoscope apparatus which can continue power supply to a light source when a voltage applied to the light source is reduced.SOLUTION: An endoscope includes: a light source provided on one tip end in an axial direction of a tubular inserting part that is to be inserted into a body cavity for irradiating light into the body cavity； and a first electric conductive path for applying voltage to the light source. The endoscope includes: a detection circuit for detecting the applied voltage via the first electric conductive path； and a switching circuit which switches the voltage to be applied to the light source via a second electric conductive path, which is different from the first electric conductive path, when the voltage detected by the detection circuit is lower than a predefined voltage.SELECTED DRAWING: Figure 1【課題】光源に印加される電圧が低下した場合に、光源への給電を継続することが可能な内視鏡及び内視鏡装置を提供する。【解決手段】内視鏡は、体腔内に挿入される管状の挿入部における軸方向の一方側の先端部に配されて前記体腔内に光を照射する光源と、該光源に電圧を印加するための第１通電路とを備える。内視鏡は、前記第１通電路を介して印加される電圧を検出する検出回路と、該検出回路が検出した電圧が所定電圧より低い場合、前記第１通電路とは異なる第２通電路を介して前記光源に電圧が印加されるように切り換える切換回路とを備える。【選択図】図１
