| 摘要 |
PROBLEM TO BE SOLVED: To provide a zoom lens barrel that is excellent in an anti-impact absorption property, as attaining miniaturization of a lens frame, and to provide an imaging device that uses the zoom lens barrel.SOLUTION: When viewing a zoom lens barrel 100 in an optical axis direction, a 3B cam follower 108m is arranged on an opposite side across an optical axis OA with respect to a 3A cam follower 108a, and thus, a third holder 105 is downsized to enable increase in an interval between the cam followers. Accordingly, when impact force owing to a falling and the like is given to the zoom lens barrel 100, the 3B cam follower 108m comes into contact with a 3B cam groove 103e upon receiving moment arising from inertia force occurring in the third holder 105, and a moment load can be received with a large span between the 3B cam follower 108m and the 3A cam follower 108a, which in turn stress acting between the cam follower and the cam groove can be held down to a low level, and an anti-impact absorption property can be improved.SELECTED DRAWING: Figure 3 |
