| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel capable of preventing the eccentricity of a member which is guided in an optical axis direction and in which rotational force around an optical axis is input. SOLUTION: The lens barrel 1 is equipped with: a cylinder part 60 which is formed to be nearly cylindrical; a moving part 40 which is provided on the inside diameter side of the cylinder part 60 and supported movably in the optical axis I direction relative to the cylinder part 60, and in which the rotational force around the optical axis I is input; and guiding parts 42 and 62 which are provided between the cylinder part 60 and the moving part 40, guide the movement of the moving part 40 in the optical axis I direction relative to the cylinder part 60, and restrict the movement of the moving part 40 to the inside diameter side of the cylinder part 60. COPYRIGHT: (C)2007,JPO&INPIT
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