公开(公告)号：US09013801B2

公开(公告)日：2015-04-21

申请号：US14103236

申请日：2013-12-11

Applicant: FUJIFILM Corporation

Inventor： Takashi Tanaka ,  Michio Cho

IPC: G02B15/14 ,  G02B15/16 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20

CPC classification number: G02B15/16 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20

Abstract: A zoom lens substantially consists of, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a negative fifth lens group. When varying magnification, the distances between adjacent lens groups are changed, while all of the lens groups are moved with respect to an image formation position. If fw represents the focal length of the entire lens system at the wide angle end, f4 represents the focal length of the fourth lens group, F5 represents the focal length of the fifth lens group, and β5T is an image formation magnification of the fifth lens group when focusing on infinity at the telephoto end, formula (J): 0.50

Abstract translation: 变焦透镜基本上由物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组，正的第四透镜组和负的第五透镜组。 当改变放大倍数时，相对于图像形成位置移动所有透镜组，相邻透镜组之间的距离被改变。 如果fw表示广角端的整个透镜系统的焦距，则f4表示第四透镜组的焦距，F5表示第五透镜组的焦距，＆amp; bgr表示5T的图像形成倍率 式（J）：0.50

公开(公告)号：US09229203B2

公开(公告)日：2016-01-05

申请号：US14098619

申请日：2013-12-06

Applicant: FUJIFILM Corporation

Inventor： Takashi Tanaka ,  Michio Cho

IPC: G02B27/64 ,  G02B15/14 ,  G02B15/16 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20 ,  G03B5/00

CPC classification number: G02B15/16 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20 ,  G02B27/646 ,  G03B5/00 ,  G03B2205/0015 ,  G03B2205/0046

Abstract: A zoom lens substantially consists of, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a negative fifth lens group. When varying magnification, the distances between adjacent lens groups) are changed, while all of the lens groups are moved with respect to an image formation position. When focusing, only the fifth lens group is shifted, and the third lens group has a third-a lens group having positive refractive power and a third-b lens group having negative refractive power, which are arranged in this order from the object side, only the third-b lens group is moved in a direction perpendicular to the optical axis to achieve camera shake correction.

Abstract translation: 变焦透镜基本上由物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组，正的第四透镜组和负的第五透镜组。 当改变放大倍率时，相邻透镜组之间的距离）改变，而所有透镜组相对于图像形成位置移动。 当聚焦时，只有第五透镜组被移动，并且第三透镜组具有从物体侧依次排列的具有正折光力的第三透镜组和具有负折光力的第三b透镜组， 只有第三b透镜组在垂直于光轴的方向上移动，以实现相机抖动校正。

公开(公告)号：US09013805B2

公开(公告)日：2015-04-21

申请号：US14314050

申请日：2014-06-25

Applicant: FUJIFILM Corporation

Inventor： Takashi Tanaka ,  Michio Cho

IPC: G02B15/14 ,  G02B15/16 ,  G02B15/173 ,  G02B13/00 ,  G02B27/64

CPC classification number: G02B15/16 ,  G02B13/009 ,  G02B15/173 ,  G02B27/646

Abstract: A zoom lens substantially consists of a positive first lens group, a negative second lens group, a positive third lens group, and a positive fourth lens group in this order from the object side, wherein the distance between the first lens group and the second lens group increases and the distance between the second lens group and the third lens group decreases, and the distance between the third lens group and the fourth lens group decreases while changing magnification. The fourth lens group substantially consists of a positive fourth-a lens group composed of a biconvex-shape lens, a negative meniscus-shape lens, and a biconvex-shape lens and a negative fourth-b lens group composed of a positive meniscus-shape lens and a biconcave-shape lens in this order from the object side, and only the fourth-b lens group is moved toward the image side while focusing.

Abstract translation: 从物体侧开始，变焦透镜基本上由正的第一透镜组，负的第二透镜组，正的第三透镜组和正的第四透镜组构成，其中第一透镜组和第二透镜之间的距离 组增加，并且第二透镜组和第三透镜组之间的距离减小，并且第三透镜组和第四透镜组之间的距离随着变化的变化而减小。 第四透镜组基本上由由双凸形透镜，负弯月形透镜和双凸透镜构成的正四面透镜组和由正弯月面形状构成的负四棱镜组 透镜和双凹透镜，并且只有第四-B透镜组在聚焦的同时朝向像侧移动。

公开(公告)号：US09001431B2

公开(公告)日：2015-04-07

申请号：US14106879

申请日：2013-12-16

Applicant: Fujifilm Corporation

Inventor： Takashi Tanaka ,  Michio Cho

IPC: G02B15/14 ,  G02B13/00 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20

CPC classification number: G02B13/009 ,  G02B13/18 ,  G02B15/14 ,  G02B15/173 ,  G02B15/20

Abstract: A zoom lens substantially consists of, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a negative fifth lens group. When varying magnification, the distances between adjacent lens groups are changed, while all of the lens groups are moved with respect to an image formation position. If β5T represents the image formation magnification of the fifth lens group when focusing on infinity at the telephoto end, fw represents the focal length of the entire lens system at the wide angle end, and f3 represents the focal length of the third lens group, formula (Ca): −5.00≦1−(β5T)2≦−3.30 and formula (H): 0.10

Abstract translation: 变焦透镜基本上由物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组，正的第四透镜组和负的第五透镜组。 当改变放大倍率时，相对于图像形成位置移动所有透镜组，相邻透镜组之间的距离改变。 如果＆bgr; 5T表示当在远摄端聚焦在无限远时第五透镜组的图像形成倍率，fw表示在广角端处整个透镜系统的焦距，f3表示第三透镜组的焦距 ，式（Ca）：-5.00＆nlE; 1 - （＆bgr; 5T）2＆nlE; -3.30和式（H）：0.10

公开(公告)号：US08988784B2

公开(公告)日：2015-03-24

申请号：US14094812

申请日：2013-12-03

Applicant: FUJIFILM Corporation

Inventor： Takashi Tanaka ,  Michio Cho

IPC: G02B15/14 ,  G02B15/173 ,  G02B27/64

CPC classification number: G02B15/14 ,  G02B15/173 ,  G02B27/646

Abstract: A zoom lens substantially consists of, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a negative fifth lens group. When varying magnification, the distances between adjacent lens groups are changed, while all of the lens groups are moved with respect to an image formation position. When focusing, only the fifth lens group is shifted. The fifth lens group has at least one negative lens and at least one positive lens.

Abstract translation: 变焦透镜基本上由物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组，正的第四透镜组和负的第五透镜组。 当改变放大倍率时，相对于图像形成位置移动所有透镜组，相邻透镜组之间的距离改变。 当聚焦时，仅第五透镜组移动。 第五透镜组具有至少一个负透镜和至少一个正透镜。

公开(公告)号：US08922904B2

公开(公告)日：2014-12-30

申请号：US14093208

申请日：2013-11-29

Applicant: FUJIFILM Corporation

Inventor： Takashi Tanaka ,  Michio Cho

IPC: G02B15/14 ,  G02B15/173

CPC classification number: G02B15/14 ,  G02B15/173

Abstract: A zoom lens substantially consists of, in order from the object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a negative fifth lens group. When varying magnification from the wide angle end to the telephoto end, a distance between the first lens group and the second lens group is always increased, a distance between the second lens group and the third lens group is always decreased, a distance between the third lens group and the fourth lens group is always decreased, and a distance between the fourth lens group and the fifth lens group is changed, while all of the lens groups are moved with respect to an image formation position. Formulas (Ca): −5.00≦1−(β5T)2

Abstract translation: 变焦透镜基本上由物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组，正的第四透镜组和负的第五透镜组。 当从广角端到望远端变化放大倍数时，总是增加第一透镜组和第二透镜组之间的距离，第二透镜组和第三透镜组之间的距离总是减小，第三透镜​​组与第三透镜组之间的距离 透镜组和第四透镜组总是减小，并且第四透镜组和第五透镜组之间的距离改变，同时所有透镜组相对于图像形成位置移动。 式（Ca）：-5.00＆nlE; 1 - （＆bgr; 5T）2 <-2.5和（D）：0.10