| 摘要 |
PROBLEM TO BE SOLVED: To enhance the impact resistance of a lens-barrel by miniaturizing a lens unit using a mold cam barrel. SOLUTION: The lens-barrel comprises a fixed barrel; and the cam barrel arranged adjacent to the fixed barrel, forming a first mobile group cam at the outer peripheral side; forming a second projected mobile group cam at the inner peripheral side. A projecting part is formed on the fixing barrel at the position kept away by specified spaced intervals from the inner peripheral surface of the cam barrel. COPYRIGHT: (C)2004,JPO
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