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    • 32. 发明授权
    • Zoom lens assembly
    • 变焦镜头组合
    • US4925282A
    • 1990-05-15
    • US199714
    • 1988-05-27
    • Hideo KannoHitoshi ImanariHideshi NaitoYoshiro KodakaNaoto Ohta
    • Hideo KannoHitoshi ImanariHideshi NaitoYoshiro KodakaNaoto Ohta
    • G02B7/10
    • G02B7/10
    • A zoom lens assembly comprises a photo-taking optical system having a focusing portion, a zooming portion, and an optic axis, a manual operator movable in the direction of the optic axis for zooming and rotatable about the optic axis for focusing, an electrically rotated drive shaft, a member for moving the zooming portion of the photo-taking optical system for zooming in response to the movement of the manual operator in the direction of the optic axis, an intermediate member rotatable in response to the rotation of the manual operator to move the focusing portion of the photo-taking optical system for focusing, and movable in the direction of the optic axis with the manual operator, a transmission system for coupling the intermediate member to the drive member for movement in the direction of the optic axis to thereby transmit the rotation of the drive member to the intermediate member irrespective of the movement of the intermediate member in the direction of the optic axis, and a change-over device operable to connect and disconnect the rotation of the manual operator and the intermediate member.
    • 变焦透镜组件包括具有聚焦部分,变焦部分和光轴的摄影光学系统,可在光轴方向上移动的手动操作器,用于变焦并围绕光轴可旋转以进行聚焦,电旋转 驱动轴,用于响应于手动操作者在光轴方向的移动而移动照相光学系统的变焦部分以进行变焦的构件,可响应于手动操作器的旋转而旋转的中间构件 移动用于聚焦的摄影光学系统的聚焦部分,并且可以用手动操作器在光轴的方向上移动;传动系统,用于将中间构件连接到驱动构件,以在光轴方向上移动到 从而将驱动构件的旋转传递到中间构件,而不管中间构件在光轴方向上的运动如何,并且ac 摆动装置可操作以连接和断开手动操作器和中间构件的旋转。