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    • 4. 发明申请
    • ZOOM LENS, IMAGING APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS
    • 变焦镜头,成像装置和制造变焦镜头的方法
    • US20140355129A1
    • 2014-12-04
    • US14462103
    • 2014-08-18
    • Nikon Corporation
    • Haruo SatoIssei Tanaka
    • G02B13/04G03B19/20G02B1/11
    • G02B13/04G02B1/11G02B15/177G02B27/0018G02B27/646G03B19/20
    • A zoom lens including, from an object: a front group having negative power; and a rear group having positive power, the rear group including, from the object, a positive lens, a negative lens having a concave surface facing the object, a cemented positive lens constructed by a negative lens and a positive lens, and a cemented lens constructed by a positive lens and a negative lens, the rear group further including a focusing group disposed to the object side of the positive lens La for focusing from infinity to a close object by moving from the object side to an image side, a distance between the front group and the rear group being varied thereby zooming from a wide-angle end state to a telephoto end state, and given condition being satisfied, thereby providing a downsized zoom lens having wide angle of view and excellent optical performance with fewer lenses.
    • 一种变焦透镜,包括:物体:具有负电力的前组; 和具有正功率的后组,所述后组从所述物体包括正透镜,具有面向所述物体的凹面的负透镜,由负透镜和正透镜构成的胶合正透镜,以及胶合透镜 由正透镜和负透镜构成,后组还包括设置在正透镜La的物体侧的聚焦组,用于通过从物体侧向像侧移动而从无穷远到近距离物体的聚焦, 前组和后组变化,从广角端状态变焦到望远端状态,并且满足条件,从而提供具有广视角的缩小变焦透镜和具有较少透镜的优异光学性能。
    • 8. 发明授权
    • Zoom lens, imaging apparatus, and method for manufacturing zoom lens
    • 变焦镜头,成像设备和制造变焦镜头的方法
    • US09354430B2
    • 2016-05-31
    • US14462103
    • 2014-08-18
    • Nikon Corporation
    • Haruo SatoIssei Tanaka
    • G02B13/04G02B15/177G02B27/00G02B1/11G03B19/20G02B27/64
    • G02B13/04G02B1/11G02B15/177G02B27/0018G02B27/646G03B19/20
    • A zoom lens including, from an object: a front group having negative power; and a rear group having positive power, the rear group including, from the object, a positive lens, a negative lens having a concave surface facing the object, a cemented positive lens constructed by a negative lens and a positive lens, and a cemented lens constructed by a positive lens and a negative lens, the rear group further including a focusing group disposed to the object side of the positive lens La for focusing from infinity to a close object by moving from the object side to an image side, a distance between the front group and the rear group being varied thereby zooming from a wide-angle end state to a telephoto end state, and given condition being satisfied, thereby providing a downsized zoom lens having wide angle of view and excellent optical performance with fewer lenses.
    • 一种变焦透镜,包括:物体:具有负电力的前组; 和具有正功率的后组,所述后组从所述物体包括正透镜,具有面向所述物体的凹面的负透镜,由负透镜和正透镜构成的胶合正透镜,以及胶合透镜 由正透镜和负透镜构成,后组还包括设置在正透镜La的物体侧的聚焦组,用于通过从物体侧向像侧移动而从无穷远到近距离物体的聚焦, 前组和后组变化,从广角端状态变焦到望远端状态,并且满足条件,从而提供具有广视角的缩小变焦透镜和具有较少透镜的优异光学性能。