| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel that can ensure a rotation regulation of a lens holder even receiving a large shock from the outside to prevent a lens holder from being dropped and excels in shock resistance.SOLUTION: A lens barrel comprises: a lens holder 73 holding a lens 13 and capable of moving to an optical axis direction; and a fixed member 22 that supports both ends of a first guide axis 22a for guiding the lens holder 73 to the optical axis direction and supports a second guide axis 22b for engaging with the lens holder 73 to regulate the rotation of the lens holder 73 centering the first guide axis 22a. The second guide axis 22b is formed to be shorter than the first guide axis 22a and is supported in a cantilever manner with respect to the fixed member 22. Rotation regulating means 22c, 73c are provided between a wall part supporting the end of the first guide axis 22a of the fixed member 22 and the lens holder 73, to regulate the rotation of the lens holder 73 centering the first guide axis 22a when at least the engagement between the lens holder 73 and the end of the second guide axis 22b is released.SELECTED DRAWING: Figure 13 |
