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1. 发明公开

EP2533091A3 Zoom lens and image pickup apparatus equipped with zoom lens 审中-公开
标题翻译：变焦透镜和图像拾取装置具有所述变焦透镜
公开(公告)号：EP2533091A3
公开(公告)日：2013-02-13
申请号：EP12169708.0
申请日：2012-05-29
申请人： Canon Kabushiki Kaisha
发明人： Tashiro, Yoshihisa , Fujisaki, Toyokatsu
IPC分类号： G02B15/17 , G02B15/173
CPC分类号： G02B13/0065 , G02B13/009 , G02B13/12 , G02B15/17 , G02B15/173
摘要： A zoom lens includes, a first lens unit of a positive refractive power, a second lens unit of a negative refractive power, a reflective element, and a rear lens group including two or more lens units and an aperture stop, in which the first lens unit, the second lens unit, and two or more lens units of the rear lens group are moved while the reflective element is stationary during zooming, wherein movement amounts M1 and M2 of the first and second lens units during zooming, a movement amount Ms of the aperture stop, and focal lengths fw and ft of the entire zoom lens at the wide-angle end and the telephoto end, respectively, lateral magnifications β2w and β2t of the second lens unit, a distance LSw from the first lens surface to the aperture stop at the wide-angle end are appropriately set.

2. 发明公开

EP2533091A2 Zoom lens and image pickup apparatus equipped with zoom lens 审中-公开
标题翻译： Zoomobjektiv und Bildaufnahmevorrichtung mit dem Zoomobjektiv
公开(公告)号：EP2533091A2
公开(公告)日：2012-12-12
申请号：EP12169708.0
申请日：2012-05-29
申请人： Canon Kabushiki Kaisha
发明人： Tashiro, Yoshihisa , Fujisaki, Toyokatsu
IPC分类号： G02B15/17 , G02B15/173
CPC分类号： G02B13/0065 , G02B13/009 , G02B13/12 , G02B15/17 , G02B15/173
摘要： A zoom lens includes, a first lens unit of a positive refractive power, a second lens unit of a negative refractive power, a reflective element, and a rear lens group including two or more lens units and an aperture stop, in which the first lens unit, the second lens unit, and two or more lens units of the rear lens group are moved while the reflective element is stationary during zooming, wherein movement amounts M1 and M2 of the first and second lens units during zooming, a movement amount Ms of the aperture stop, and focal lengths fw and ft of the entire zoom lens at the wide-angle end and the telephoto end, respectively, lateral magnifications β2w and β2t of the second lens unit, a distance LSw from the first lens surface to the aperture stop at the wide-angle end are appropriately set.
摘要翻译：变焦透镜包括：正屈光力的第一透镜单元，负折光力的第二透镜单元，反射元件和包括两个或更多个透镜单元和孔径光阑的后透镜组，其中第一透镜单元，第二透镜单元和后透镜组的两个或更多个透镜单元在变焦期间反射元件静止时移动，其中第一和第二透镜单元在变焦期间的移动量M1和M2，移动量Ms 孔径光阑，以及广角端和远摄端的整个变焦透镜的焦距fw和ft分别为第二透镜单元的横向倍率ν2w和²2t，从第一透镜表面到孔径的距离LSw 在广角端停止适当设定。

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