| 摘要 |
PROBLEM TO BE SOLVED: To make aligning and engaging easy for the cam pin and cam grooves, when attaching the cam plate on the outside of a lens barrel. SOLUTION: The rotation center 10c side ends of the cam grooves 10a, 10b formed on the cam plate 10 are made expanding sections 10e, 10f larger than the cam grooves 10a, 10b. Since the grooves 10a, 10b are made substantially larger than the diameters of the cam pins 2a, 3a, it becomes easy to engage the cam pins 2a, 3a in the grooves 10a, 10b, when attaching the cam plate 10 on the outside surface of the lens barrel 1; and the cam plate 10 can be attached efficiently. COPYRIGHT: (C)2006,JPO&NCIPI
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