PROBLEM TO BE SOLVED: To suppress a wasteful space to achieve downsizing by increasing space efficiency in an insertion tip face, and easily fix a lens and an imaging element with high strength.SOLUTION: A tip 15 of an endoscope includes a single lens 93 whose outer shape in a vertical direction with respect to a center LC of the lens is quadrangular, and a mold resin 161 which surrounds the respective outside surfaces of the lens 93, an element cover glass 43, and a base plate of an imaging element 33 and is substantially in contact with the respective four corners of the lens 93, the element cover glass 43, and the imaging element 33, and whose surrounding outer shape is circular.SELECTED DRAWING: Figure 36COPYRIGHT: (C)2018,JPO&INPIT【課題】挿入先端面におけるスペース効率を高めて無駄なスペースを抑制できることで小型化を図り、レンズと撮像素子とを容易に高強度で固定する。【解決手段】内視鏡の先端部15において、レンズ中心LCに対して垂直方向の外形状が四角形の単一のレンズ93と、レンズ93、素子カバーガラス43及び撮像素子33の基板の各外側面を包囲し、かつレンズ93、素子カバーガラス43及び撮像素子33の各四隅と略接し、その包囲している外形状が円形のモールド樹脂161と、を設けた。【選択図】図36