| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel that is excellent in operational feeling.SOLUTION: A lens barrel 100 comprises: a movement member 91 that holds a lens and is movable in an optical axis direction of the lens; a first cylindrical member 3 that has a hole part 30 extending in a direction crossing the optical axis provided; a second cylindrical member 4 that rotates around the optical axis to thereby transmit driving force toward the optical axis direction to the movement member 91; a protrusion part 15 that is provided in the second cylindrical member 4 so as to protrude in a direction crossing the optical axis, and moves along an extending direction of the hole part 30 in the hole part 30 upon rotation of the second cylindrical member around the optical axis direction; and a contact part 34 that is provided in at least a part of an inner periphery face crossing the optical axis direction of the hole part 30, comes into contact with a lateral face of the protrusion part 15 opposing the inner periphery face, and thereby changes friction force between the inner periphery face of the hole part 30 thanks to a position in the hole part 30 of the protrusion part 15 and the lateral face of the protrusion part 15.SELECTED DRAWING: Figure 5 |
