Endoscope apparatus

摘要

An endoscope apparatus for reducing a halation for a large observation area without an illumination nonuniformity includes an insertion part which has an end having a wide-angle object optical system with two or more types of illumination optical systems having different illumination strength or light distribution. An illumination optical system having a greater illumination strength or wider light distribution is arranged on both sides of the end in a direction of a long side of a screen of the wide-angle object optical system. An illumination optical system having a lesser illumination strength or narrower light distribution is arranged on both sides of the end in a direction of a short side of the screen of the wide-angle object optical system.