PROBLEM TO BE SOLVED: To provide an endoscope apparatus having significantly high illuminance in a display area of an analyte and capable of inhibiting deviation of illuminance distribution.SOLUTION: An endoscope apparatus includes: an illumination window group located at a distal end of an endoscope and including at least three illumination windows emitting illumination light for illuminating an observation object area of an analyte and an image pickup part for photographing the observation object area of the analyte to which illumination light is applied. The illumination window group includes at least two first illumination windows and a second illumination window that emit illumination light with different light quantities respectively. The quantity of illumination light emitted from the first illumination windows is smaller than the quantity of the illumination light emitted from the second illumination window. The first illumination windows are so arranged that optical axes 20a and 20b of the illumination light beams emitted from the first illumination windows are located at an analyte photographed area 21 on which the analyte out of the image photographed by the image pickup part is photographed. The second illumination window is so arranged that an optical axis 20c of the illumination light emitted from the second illumination window is not located at the analyte photographed area 21.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2016,JPO&INPIT【課題】被検体の表示領域における照度が十分高く、照度分布の偏りを抑制可能な内視鏡装置を提供すること。【解決手段】内視鏡装置は、内視鏡の先端部に位置し、被検体の被観察領域を照射する照明光を出射する少なくとも3つの照明窓を含む照明窓群と、照明光が照射された被検体の被観察領域を撮像する撮像部とを備える。照明窓群には、出射光量がそれぞれ異なる照明光を出射する、少なくとも2つの第1照明窓と、第2照明窓とが含まれる。第1照明窓から出射される照明光の光量は、第2照明窓から出射される照明光の光量より小さい。第1照明窓は、第1照明窓から出射される照明光の光軸20a,20bが、撮像部によって撮像された画像のうちの被検体が撮像されている被検体撮像領域21に位置する、配置となっている。第2照明窓は、第2照明窓から出射される照明光の光軸20cが、被検体撮像領域21に位置していない、配置となっている。【選択図】図4
