| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear guide mechanism of a lens barrel, which allows a wide range of movement of a linearly movable member, in the optical axis direction, while downsizing a linear guide ring in the optical axis direction.SOLUTION: In the lens barrel in which the linearly movable member holding an optical element is linearly moved in the optical axis direction by rotation of a rotatable ring, the range of movement is divided into different small areas, and the linear guide mechanism is formed from a plurality of partial linear guide members for linearly guiding the linearly movable member in the optical axis direction. |
