According to the present invention, in an endoscope imaging unit having an imaging element, a phase in which a pixel that outputs a signal that can be used for phase adjustment of an image by receiving light is disposed in an optical black region of the imaging element. Provide a reference pixel area, the optical axis of the objective optical system member having an image circle narrower than the effective pixel area of the image sensor, so that the light transmitted through the objective optical system member can reach the phase reference pixel area, It arrange positions in the position close similar to the said phase reference pixel area region with respect to the center of the said effective pixel area region.本発明は、撮像素子を有する内視鏡用撮像ユニットにおいて、撮像素子のオプティカルブラック領域内に、受光することで映像の位相調整に用いることが可能な信号を出力する画素が配設された位相基準画素領域を設け、撮像素子の有効画素領域よりも狭いイメージサークルを有する対物光学系部材の光軸を、当該対物光学系部材を透過した光が前記位相基準画素領域に到達可能なように、前記有効画素領域の中心に対し前記位相基準画素領域に近い位置に配置する。
