The endoscope imaging unit 1 includes a first optical element 10 having a first parallel flat plate glass 11 as a base, a second optical element 20 having a second parallel flat glass 21 as a base, and a first optical element 10. A first spacer 30 defining the distance between the optical element 10 and the second optical element 20, an imaging element 50, a second defining the distance between the second optical element 20 and the imaging element 50 The first parallel flat glass 11 has no resin lens on the light incident surface 10SA and has a negative on the second main surface 10SB facing the light incident surface 10SA. A resin lens 12 of power is disposed, a resin lens 22 of positive power is disposed on the second parallel flat glass 21, and a side surface is covered by a sealing member 60 made of an inorganic material. The light path space is a sealed space.内視鏡用撮像ユニット１は、第１の平行平板ガラス１１を基体とする第１の光学素子１０と、第２の平行平板ガラス２１を基体とする第２の光学素子２０と、第１の光学素子１０と第２の光学素子２０との間の距離を規定する第１のスペーサ３０と、撮像素子５０と、第２の光学素子２０と撮像素子５０との間の距離を規定する第２のスペーサ４０と、を有し、第１の平行平板ガラス１１は、入光面１０ＳＡには樹脂レンズが配設されておらず、入光面１０ＳＡと対向する第２の主面１０ＳＢに負のパワーの樹脂レンズ１２が配設されており、第２の平行平板ガラス２１には正のパワーの樹脂レンズ２２が配設されており、側面が無機材料からなる封止部材６０により覆われており、光路空間が密封空間である。
