PROBLEM TO BE SOLVED: To relatively easily provide a high-resolution image.SOLUTION: An optical transmission unit comprises: a plurality of optical transmission paths 10A first aperture limiting means 20A for limiting an aperture on an incident end of each of a plurality of optical transmission paths second aperture limiting means 20B for limiting an aperture on an exit end of each of the plurality of optical transmission paths and displacement means (30A, 30B, 40A) for rotationally displacing, around an optical axis direction of the optical transmission path, at least one of the plurality of optical transmission paths and the first and second aperture limiting means so that a displacement direction and displacement amount of the aperture limited by the first aperture limiting means are equal to a displacement direction and displacement amount of the aperture limited by the second aperture limiting means.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】比較的簡単に高解像度な画像を提供すること【解決手段】光伝送ユニットは、複数の光伝送路10Aと、前記複数の光伝送路の夫々の入射端の開口を制限する第1の開口制限手段20Aと、前記複数の光伝送路の夫々の出射端の開口を制限する第2の開口制限手段20Bと、前記第1の開口制限手段によって制限された開口の変位方向及び変位量と、前記第2の開口制限手段によって制限された開口の変位方向及び変位量と、が等しくなるように、前記複数の光伝送路と、前記第1及び第2の開口制限手段と、の少なくとも一方を光伝送路の光軸方向の周りに回転変位させる変位手段(30A,30B,40A)と、を有する。【選択図】図1