The present invention relates to a lens barrel unit 20 including a movable lens holding frame 23 capable of advancing and retracting while holding a movable lens 11 b, an urging member 31 for urging the movable lens holding frame 23 toward the base end side, A drive mechanism section 30 which is disposed on the side surface section of the cylindrical section 20 and has a contact section 32a which abuts on the movable lens holding frame 23 and drives the movable lens holding frame 23 toward the distal end side The first magnetic member 41 provided and the first magnetic member 41 located closer to the outer diameter direction of the movable lens holding frame 23 than the first magnetic member 41 and pulling the movable lens holding frame 23 in one direction of the outer diameter And a second magnetic member (42) provided on an actuator (30) which is brought close to the endoscope.本発明は、可動レンズ11bを保持して進退移動可能な可動レンズ保持枠23を含むレンズ鏡筒部20と、可動レンズ保持枠23を基端側に付勢する付勢部材31と、レンズ鏡筒部20の側面部に配設され、可動レンズ保持枠23に当接する当接部32aを有し、可動レンズ保持枠23を先端側に駆動する駆動機構部30と、可動レンズ保持枠23に設けられた第1磁性部材41と、第1磁性部材41よりも可動レンズ保持枠23の外径方向に位置して第1磁性部材41を引き寄せて、可動レンズ保持枠23を外径一方向に寄せるアクチュエータ30に設けられた第2磁性部材42と、を有する内視鏡用撮像ユニット1。
