Lens barrel
    1.
    发明授权
    Lens barrel 失效
    镜筒

    公开(公告)号:US4508443A

    公开(公告)日:1985-04-02

    申请号:US524671

    申请日:1983-08-19

    CPC分类号: G02B7/08

    摘要: A lens barrel is capable of selectively establishing a power focus mode in which an internally housed motor moves a taking lens to a position of any desired focal length, a single "auto-focus" mode in which the taking lens is moved to a position which is in focus to a stationary object being photographed, and a sequence "auto-focus" mode in which the taking lens is continuously moved in focus to a moving object being photographed. Any one of these modes is suitably selected by a mode changing switch. A movement of the taking lens in each mode is initiated by an operating member.

    摘要翻译: 透镜镜筒能够选择性地建立功率对焦模式,其中内部容纳的马达将拍摄镜头移动到任何所需焦距的位置,单次“自动对焦”模式,其中拍摄镜头移动到 对被拍摄的静止物体进行聚焦,以及将拍摄镜头连续移动到拍摄的移动物体的顺序“自动对焦”模式。 这些模式中的任何一个通过模式切换开关适当选择。 拍摄镜头在每种模式下的移动由操作构件启动。