| 摘要 |
PROBLEM TO BE SOLVED: To provide a lens barrel that can reduce drive load of a lens barrel during zooming and has no possibility that a lens holder is dislocated by external force. SOLUTION: The lens barrel, which includes a first barrel member and a second barrel member and is configured by arranging the first barrel member on an outer periphery side of the second barrel member to be movable in an optical axis direction, includes: a plurality of engaging members held on the first barrel member and engaged with a groove to be engaged formed on the second barrel member, and moving in the optical axis direction along the groove to be engaged by rotation of the second barrel member; and an annular biasing member provided on an outer periphery part of the first barrel member, and biasing the plurality of engaging members against the groove to be engaged formed on the second barrel member. COPYRIGHT: (C)2010,JPO&INPIT
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