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    • 10. 发明授权
    • Lens device and imaging device
    • 镜头装置和成像装置
    • US07589913B2
    • 2009-09-15
    • US12197707
    • 2008-08-25
    • Shigeru Kondo
    • Shigeru Kondo
    • G02B15/14
    • G02B7/102G02B5/04G02B15/16G03B3/10G03B17/17H04N5/2254H04N2101/00
    • An optical path passing through an object-side lens group is bent at a right angle by an optical device so as to be a vertical optical path. A lens group on imaging surface side for forming an image on an imaging surface is disposed on the vertical optical path. The lens group on imaging surface side moves along the vertical optical path, and has a plurality of movable lens groups at least for zooming. The cam plate moves in a direction perpendicular to the vertical optical path within a plane perpendicular to an optical axis of the object-side lens group and not protruding toward an object side compared with the object-side lens group. A plurality of cam slots are formed on the cam plate. The cam slots are fit to a part of the plurality of movable lens groups. In accordance with the movement of the cam plate, the cam slots move the plurality of the movable lens groups such that zooming and focusing are performed.
    • 通过物体侧透镜组的光路通过光学装置以直角弯曲成垂直光路。 在垂直光路上设置有用于在成像面上形成图像的成像面侧的透镜组。 成像面侧的透镜组沿着垂直光路移动,并且至少具有可变焦的多个可动透镜组。 凸轮板在与物体侧透镜组的光轴垂直的平面内垂直于垂直光路的方向移动,并且与物体侧透镜组相比不向物体侧突出。 凸轮板上形成有多个凸轮槽。 凸轮槽适合于多个可移动透镜组的一部分。 根据凸轮板的移动,凸轮槽使多个可移动透镜组移动,从而进行变焦和聚焦。