LENS BARREL AND IMAGING DEVICE

Provided is a lightweight lens barrel provided with two focusing lenses. A lens barrel 2 is provided with: a first lens retaining frame 50 for retaining a first lens L5; a first drive unit STM5 for causing the first lens retaining frame 50 to move in the optical axis direction; a second lens retaining frame 60 for retaining a second lens L6; a second drive unit STM6 for causing the second lens retaining frame 60 to move in the optical axis direction; and a moving barrel 100 capable of moving in the optical axis direction, the moving barrel 100 being provided with the first drive unit STM5 andthe second drive unit STM6; the first lens retaining frame 50 and the second lens retaining frame 60 each being capable of moving in the optical axis direction with respect to the moving barrel 100. 提供一种具备两个聚焦透镜的轻量的透镜镜筒。透镜镜筒(2)具备保持第1透镜(L5)的第1透镜保持框(50)、使所述第1透镜保持框(50)沿光轴方向移动的第1驱动部(STM5)、保持第2透镜(L6)的第2透镜保持框(60)、使所述第2透镜保持框(60)沿光轴方向移动的第2驱动部(STM6)、和设有所述第1驱动部(STM5)及所述第2驱动部(STM6)且能够沿光轴方向移动的移动筒(100)，所述第1透镜保持框(50)和所述第2透镜保持框(60)能够相对于