| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel with a suppressed backlash or tilt of a lens holding frame.SOLUTION: A lens barrel includes: a first guide shaft 32 and a second guide shaft 34 provided at least in one lens holding frame 12 of one pair of adjacent lens holding frames, aligned parallel to an optical axis X, and configured to guide a movement of the other lens holding frame 11 in an optical axis X direction; a first guide receptacle hole 33 formed in the lens holding frame 12, and configured to receive insertion of the first guide shaft 32 and to be guided by the first guide shaft 32; a second guide receptacle hole 35 configured to receive insertion of the second guide shaft 34 and to be guided by the second guide shaft 34; a coil spring 56 configured to energize the lens holding frame 11 and the lens holding frame 12 in a direction to alienate with each other along the optical axis X direction; and a torsion spring 57 configured to act on the lens holding frame 11 with an energization force to rotate in a circumferential direction of the first guide shaft 32. The first guide receptacle hole 33 is guided by the first guide shaft 32 at two locations alienated in the optical axis X direction. |
