公开(公告)号：US20160091697A1

公开(公告)日：2016-03-31

申请号：US14865615

申请日：2015-09-25

Applicant: FUJIFILM Corporation

Inventor： Shinkichi IKEDA ,  Daiki KOMATSU ,  Michio CHO

IPC: G02B15/167 ,  G02B15/20 ,  G02B27/00

CPC classification number: G02B15/20 ,  G02B15/173

Abstract: A zoom lens consists of, in order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, a fifth lens group having a positive refractive power, and a sixth lens group having a positive refractive power, wherein magnification change is effected by changing all distances between adjacent lens groups. The first lens group is fixed relative to the image plane during magnification change, and the second lens group is moved from the object side toward the image side during magnification change from the wide-angle end to the telephoto end. The sixth lens group includes a positive lens and a negative lens.

Abstract translation: 变焦透镜按照从物体侧起依次具有正屈光力的第一透镜组，具有负屈光力的第二透镜组，具有正折光力的第三透镜组，具有正折光力的第四透镜组 屈光力，具有正屈光力的第五透镜组和具有正屈光力的第六透镜组，其中通过改变相邻透镜组之间的所有距离来实现放大率改变。 第一透镜组在放大变化期间相对于像面固定，并且在从广角端到望远端的放大变化期间，第二透镜组从物体侧朝向像侧移动。 第六透镜组包括正透镜和负透镜。

公开(公告)号：US20150247996A1

公开(公告)日：2015-09-03

申请号：US14702952

申请日：2015-05-04

Applicant: FUJIFILM Corporation

Inventor： Shinkichi IKEDA ,  Toshihiro AOI

IPC: G02B15/17 ,  H04N5/232

CPC classification number: G02B15/17 ,  G02B5/005 ,  G02B7/023 ,  G02B7/10 ,  G02B9/34 ,  G02B13/0045 ,  G02B13/009 ,  G02B15/14 ,  G02B15/173 ,  G02B15/20 ,  G02B27/0025 ,  G02B27/646 ,  G03B2205/0015 ,  G03B2205/0046 ,  H04N5/2328 ,  H04N5/23287

Abstract: A zoom lens consists of a positive first lens group, a negative second lens group moved from the object side to the image plane side during zooming from the wide angle end to the telephoto end, a positive third lens group moved during zooming, and a positive fourth lens group, in order from the object side. The second and third lens groups each pass through a point where the imaging magnification of each corresponding lens group is −1× at the same time during zooming from the wide angle end to the telephoto end. The fourth lens group includes, on the most object side, a vibration-proof lens group, composed of a negative lens, a positive meniscus lens with a convex surface on the object side, and a negative lens, in order from the object side, and either one of the negative lenses satisfies predetermined conditional expressions.

Abstract translation: 变焦透镜由从正面的第一透镜组，从第二透镜组的广角端到望远端的变焦期间从物体侧向像面侧移动的负的第二透镜组，在变焦期间移动的正的第三透镜组和正的 第四透镜组，从物体侧开始。 第二透镜组和第三透镜组在从广角端到望远端的变焦期间同时通过每个对应透镜组的成像倍率为-1×的点。 第四透镜组在物体侧依次包括由负透镜构成的防振透镜组，物体侧具有凸面的正弯月透镜和负透镜， 并且负透镜中的任一个满足预定条件表达式。