| 摘要 |
<p>A lens barrel includes a rotational drive source, a lead screw that is provided parallel with an optical axis, and rotates by rotation of the drive source, a lens frame that moves in an optical axis direction, a distance ring that rotates around the optical axis by receiving a manual operation, a guide spur gear that rotates by receiving the rotation of the distance ring, and a nut that is screwed onto the lead screw, wherein when the distance ring is rotated, the nut rotates on the lead screw by being linked with the rotation of the guide spur gear, and moves on the lead screw to press the lens frame in the optical axis direction. When the lead screw rotates by the rotation of the rotational drive source, the nut moves on the lead screw to press the lens frame in the optical axis direction.</p> |
