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    • 22. 发明申请
    • LENS BARREL AND OPTICAL ELEMENT DRIVING DEVICE
    • 镜头条和光学元件驱动装置
    • US20090168180A1
    • 2009-07-02
    • US12340905
    • 2008-12-22
    • Daisuke ITO
    • Daisuke ITO
    • G02B27/64G02B7/04G02B17/08
    • G02B7/102G02B27/646
    • A lens barrel has a first lens group, a second lens group, a third lens group, a first support frame for supporting the first lens group, a second support frame for supporting the second lens group, a third support frame for supporting the third lens group, a first drive unit, and a second drive unit. The first lens group has an overall negative refractive power, and includes a prism. The second support frame is driven along a second optical axis by the first drive unit. The third support frame is driven along the second optical axis by the second drive unit. Part of a first movement region in which the second support frame moves overlaps a second movement region in which the third support frame moves.
    • 透镜镜筒具有第一透镜组,第二透镜组,第三透镜​​组,用于支撑第一透镜组的第一支撑框架,用于支撑第二透镜组的第二支撑框架,用于支撑第三透镜的第三支撑框架 组,第一驱动单元和第二驱动单元。 第一透镜组具有总体负折光力,并且包括棱镜。 第二支撑框架由第一驱动单元沿着第二光轴驱动。 第三支撑框架由第二驱动单元沿着第二光轴驱动。 第二支撑框架移动的第一移动区域的一部分与第三支撑框架移动的第二移动区域重叠。