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    • 52. 发明申请
    • ZOOM LENS LENS-BARREL AND IMAGING APPARATUS
    • 变焦镜头镜头和成像装置
    • US20070229991A1
    • 2007-10-04
    • US11561432
    • 2006-11-20
    • Hiroshi TakenakaMitsuru Shinohara
    • Hiroshi TakenakaMitsuru Shinohara
    • G02B7/02
    • G02B7/102
    • A zoom lens lens-barrel is capable of stabilizing movement of a lens holding frame along an optical axis, ensuring retraction of the lens-barrel into the main body, and reducing the size of the zoom lens lens-barrel. A zoom lens lens-barrel which supports at least one of a plurality of lenses in a movable manner along an optical axis direction comprises a pair of first guide shafts provided parallel to an optical axis Z direction which support outer periphery of a first lens frame and a second lens frame and a pair of second guide shafts provided parallel to the optical axis Z direction and at a different phase position in the lens-barrel plane than the pair of first guide shafts, which support the outer periphery of a third lens frame, a fourth lens frame, and a fifth lens frame.
    • 变焦透镜镜筒能够稳定透镜保持框架沿光轴的移动,确保镜筒回缩到主体中,并减小变焦镜头镜筒的尺寸。 沿着光轴方向可移动地支撑多个透镜中的至少一个透镜的变焦镜头镜筒包括平行于支撑第一透镜框的外周的光轴Z方向设置的一对第一引导轴, 第二透镜框和一对平行于光轴Z方向并且在透镜镜筒平面中与支撑第三透镜框的外周的一对第一引导轴不同的相位位置设置的第二引导轴, 第四透镜框和第五透镜框。