The imaging unit (30) includes a front group lens frame (55) for holding the front group lens (56a), a rear group lens frame (55) fitted with the front group lens frame (55) and holding the rear group lens A moving frame (65) disposed so as to freely advance and retract in a direction along the photographing optical axis (O) in the rear group lens frame (56b) and hold the moving lens (66) (55c) for adhering the front group lens frame (55) and the rear group lens frame (57), and a movable frame (55c) for bonding the front group lens frame (55) and the rear group lens frame And an adhesive outflow prevention part (C) for preventing the adhesive (55 c) from flowing out to the side (65) side.撮像ユニット(30)は、前群レンズ(56a)を保持する前群レンズ枠(55)と、前群レンズ枠(55)と嵌合され、後群レンズ(56b)を保持する後群レンズ枠(57)と、後群レンズ枠(56b)内で撮影光軸(O)に沿った方向へ進退移動自在となるよう配設されて移動レンズ(66)を保持する移動枠(65)と、前群レンズ枠(55)と後群レンズ枠(57)を接着する接着剤(55c)と、前群レンズ枠(55)と後群レンズ枠(57)との接着嵌合時に、移動枠(65)側への接着剤(55c)の流出を防止する接着剤流出防止部(C)と、を具備する。
