| 摘要 |
PURPOSE:To feed out and feed in smoothly a lens barrel without applying an immoderate force to the lens barrel, a supporting bar, etc. by providing a guide roller for receiving a force in the horizontal direction when the lens barrel is moving, on an opposed position of a roller. CONSTITUTION:When an arm 21 moves together with a lens barrel 21b, the arm 21 is guided and moved in the optical axis direction by a bar holding part 21i moving along a guide bar 26. In this case, a guide roller 24 for receiving a force in the horizontal direction is provided on an opposed position of a roller 23a. In this way, an immoderate force is not applied to the lens barrel, a supporting bar, etc., and the lens barrel can be fed out and fed in smoothly. |
