LENS BARREL AND IMAGING APPARATUS

To provide a lens barrel having good optical performance.SOLUTION: The lens barrel comprises: a first electrically driven drive unit; a first rotary shaft which is rotated by the first drive unit; a first moving portion which is moved by the rotational drive of the first rotary shaft; a first lens holding frame holding a first lens and moving by being coupled with the first moving portion; a second electrically driven drive unit; a second rotary shaft which is rotated by the second drive unit; a second moving portion which is moved by the rotational drive of the second rotary shaft; a second lens holding frame holding a second lens and moving by being coupled with the second moving portion; and a guide shaft guiding the first and second lens holding frames in the direction of the optical axis. The first rotary shaft, the guide shaft and the second rotary shaft are arranged in this order, along the circumferential direction centering on the optical axis.SELECTED DRAWING: Figure 5 【課題】良好な光学性能を有するレンズ鏡筒を提供する。【解決手段】レンズ鏡筒は、電気によって駆動する第１駆動部と、前記第１駆動部によって回転する第１回転軸と、前記第１回転軸の回転駆動により移動する第１移動部と、第１レンズを保持し、前記第１移動部と連結されて移動する第１レンズ保持枠と、電気によって駆動する第２駆動部と、前記第２駆動部によって回転する第２回転軸と、前記第２回転軸の回転駆動により移動する第２移動部と、第２レンズを保持し、前記第２移動部と連結されて移動する第２レンズ保持枠と、前記第１レンズ保持枠及び前記第２レンズ保持枠を光軸方向に案内する案内軸と、を備え、光軸を中心とする周方向に沿って、前記第１回転軸、前記案内軸、および前記第２回転軸の順に配置される。【選択図】図５