公开(公告)号：US09547156B2

公开(公告)日：2017-01-17

申请号：US14632251

申请日：2015-02-26

Applicant: FUJIFILM Corporation

Inventor： Masato Kondo ,  Michio Cho

IPC: G02B13/18 ,  G02B3/02 ,  G02B9/60 ,  G02B13/00 ,  H04N5/225

CPC classification number: G02B13/0045 ,  G02B9/60 ,  H04N5/2254

Abstract: An imaging lens is essentially constituted by five lenses, including: a first lens having a positive refractive power and is of a meniscus shape with a convex surface toward the object side; a second lens of a biconcave shape; a third lens of a biconcave shape; a fourth lens of a meniscus shape with a convex surface toward the image side; and a fifth lens of a biconcave shape having at least one inflection point on the surface thereof toward the image side, provided in this order from the object side. The imaging lens satisfies predetermined conditional formula (2).

Abstract translation: 成像透镜基本上由五个透镜构成，包括：具有正折光力的第一透镜，具有朝向物体侧的凸面的弯液面; 双凹形状的第二透镜; 双凹形状的第三透镜; 具有朝向图像侧的凸表面的弯液面形状的第四透镜; 以及从物体侧依次设置的具有在其表面上朝向像侧的至少一个拐点的双凹形状的第五透镜。 成像透镜满足预定条件式（2）。

公开(公告)号：US09477070B2

公开(公告)日：2016-10-25

申请号：US14690801

申请日：2015-04-20

Applicant: FUJIFILM Corporation

Inventor： Tetsuya Ori ,  Michio Cho

IPC: G02B15/14 ,  G02B13/18 ,  G02B9/60 ,  G02B15/17 ,  G02B15/16 ,  G02B27/00 ,  G02B13/00 ,  G02B9/62 ,  G02B5/00 ,  G02B15/20 ,  G02B27/64

CPC classification number: G02B15/17 ,  G02B5/005 ,  G02B9/60 ,  G02B9/62 ,  G02B13/001 ,  G02B13/0045 ,  G02B13/006 ,  G02B13/009 ,  G02B13/18 ,  G02B15/14 ,  G02B15/161 ,  G02B15/20 ,  G02B27/0025 ,  G02B27/646

Abstract: A five-group zoom lens including, in order from the object side, positive, negative, negative, positive, and positive groups. The first group includes a negative meniscus lens with the concave surface toward the image side, a positive lens and a positive lens. The second group includes a negative lens with the image-side surface having an absolute value of curvature radius smaller than that of the object side surface, a biconcave lens, and a biconvex lens. The third group includes a negative lens with the object side surface having an absolute value of curvature radius smaller than that of the image-side surface, and is moved during focusing on a closer object. The fifth group includes a positive fifth-A group including a biconvex lens, and a negative fifth-B group including a biconcave lens and a biconvex lens, wherein condition expression (1) is satisfied: 0.22

公开(公告)号：US09316818B2

公开(公告)日：2016-04-19

申请号：US14173409

申请日：2014-02-05

Applicant: FUJIFILM Corporation

Inventor： Hiroki Saito ,  Michio Cho ,  Toru Ito

IPC: G02B13/04 ,  G02B15/16 ,  G02B15/177 ,  G02B13/00 ,  G02B15/163 ,  G02B13/18

CPC classification number: G02B13/04 ,  G02B13/009 ,  G02B13/18 ,  G02B15/16 ,  G02B15/161 ,  G02B15/163 ,  G02B15/177

Abstract: In a zoom lens in which a first lens group having a negative refractive power and a second lens group having a positive refractive power are disposed in order from the object side and zooming is performed by moving the first and the second lens groups, the first lens group is formed of a first lens having a negative refractive power, a second lens, a third lens having a negative refractive power, and a fourth lens having a positive refractive power. Then, when the focal length of the second lens, the focal length of the entire system at the wide angle end, the focal length of the first lens group, and the focal length of the second lens group are taken as fG12, fw, f1, and f2 respectively, the zoom lens is configured to satisfy conditional expressions give below: 0.00

Abstract translation: 在具有负屈光力的第一透镜组和具有正折光力的第二透镜组的变焦透镜中，从物体侧依次设置并且通过移动第一透镜组和第二透镜组来执行变焦，第一透镜 组由具有负折光力的第一透镜，第二透镜，具有负折光力的第三透镜和具有正折光力的第四透镜形成。 然后，当第二透镜的焦距，广角端的整个系统的焦距，第一透镜组的焦距和第二透镜组的焦距被取为fG12，fw，f1 和f2，变焦镜头被配置为满足以下条件表达式：0.00

公开(公告)号：US09279966B2

公开(公告)日：2016-03-08

申请号：US14507041

申请日：2014-10-06

Applicant: FUJIFILM Corporation

Inventor： Daiki Komatsu ,  Michio Cho

IPC: G02B15/14 ,  G02B15/173 ,  G02B13/18 ,  G02B27/64

CPC classification number: G02B15/14 ,  G02B13/18 ,  G02B15/173 ,  G02B27/646

Abstract: A zoom-lens consists of a positive-first-lens-group, fixed during magnification-change, a negative-second-lens-group, which moves from object-side toward image-side during magnification change from wide-angle-end to telephoto-end, a negative-third-lens-group, which corrects movement of an image-plane during magnification-change, and a positive-fourth-lens-group, which is fixed during magnification-change and includes a stop, in this order from object-side. The first-lens-group consists of a negative-1a-th-lens-group, fixed during focusing, a positive-1b-th-lens-group, which moves during focusing, and a positive-1c-th-lens-group, fixed during focusing, in this order from object-side. The second-lens-group consists of a negative-2a-th-lens-group and a positive-2b-th-lens-group, and a distance therebetween is changed during magnification-change. The third-lens-group moves in such a manner that a distance from the fourth-lens-group at telephoto-end is narrower than a distance from the fourth-lens-group at wide-angle-end. Predetermined conditional-formulas about a length from a most-object-side surface in the first-lens-group to the stop, a focal-length at wide-angle-end and a focal-length of the 1b-th-lens-group are satisfied.

Abstract translation: 变焦透镜由放大倍数变化期间固定的正第一透镜组，负像素透镜组，在从广角端向放大变化期间从物体侧朝向图像侧移动 在倍率变化期间校正图像平面的移动的长焦端，负三分之一透镜组以及在放大变化期间固定并包括停止的正四透镜组，在该 从物体方面的顺序。 第一透镜组由聚焦期间固定的负1a组透镜组，在聚焦期间移动的正1b第一透镜组和正1c组透镜组 ，在聚焦期间固定，从对象的这个顺序。 第二透镜组由负2a组透镜组和正2b第一透镜组组成，并且在放大变化期间它们之间的距离改变。 第三透镜组以这样的方式移动：在远摄端处距第四透镜组的距离比在广角端距离第四透镜组的距离窄。 关于从第一透镜组中的最物体侧表面到停止点的长度的预定条件公式，广角端的焦距和第1b透镜组的焦距 满意

公开(公告)号：US09261671B2

公开(公告)日：2016-02-16

申请号：US14221303

申请日：2014-03-21

Applicant: FUJIFILM CORPORATION

Inventor： Takayuki Noda ,  Michio Cho

IPC: G02B9/60 ,  G02B13/00

CPC classification number: G02B9/60 ,  G02B13/0045

Abstract: An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a positive refractive power and has a meniscus shape which is convex toward the object side, a second lens that has a biconcave shape, a third lens that has a meniscus shape which is convex toward an image side, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has at least one inflection point on an image side surface. Further, the imaging lens satisfies a predetermined conditional expression.

Abstract translation: 成像透镜基本上由物体侧依次包括具有正折光力并具有向物体侧凸出的弯月形状的第一透镜的五个透镜，具有双凹形状的第二透镜，第三透镜 具有朝向图像侧凸出的弯月面形状的透镜，具有正折光力的第四透镜和具有负屈光力并且在像侧表面上具有至少一个拐点的第五透镜。 此外，成像透镜满足预定条件表达式。

公开(公告)号：US09235028B2

公开(公告)日：2016-01-12

申请号：US14219681

申请日：2014-03-19

Applicant: FUJIFILM Corporation

Inventor： Kazuya Yoneyama ,  Michio Cho ,  Kazumi Koike

IPC: G02B9/60 ,  G02B13/00 ,  G02B13/18

CPC classification number: G02B13/0045 ,  G02B9/60 ,  G02B13/18

Abstract: An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a positive refractive power and is convex toward the object side, a second lens that has a negative refractive power, a third lens, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

Abstract translation: 成像透镜基本上由物体侧依次包括具有正折光力并朝向物体侧凸起的第一透镜的五个透镜，具有负折光力的第二透镜，第三透镜​​，第四透镜 具有正屈光力的透镜和具有负屈光力并具有物体侧表面的第五透镜和具有非球面形状的图像侧表面。 此外，成像透镜满足预定条件表达式。

公开(公告)号：US09170401B2

公开(公告)日：2015-10-27

申请号：US14451467

申请日：2014-08-05

Applicant: FUJIFILM Corporation

Inventor： Hiroshi Yamada ,  Michio Cho

IPC: G02B3/02 ,  G02B9/64 ,  G02B9/14 ,  G02B13/06 ,  H04N5/225

CPC classification number: G02B9/64 ,  G02B9/14 ,  G02B13/06 ,  H04N5/2254

Abstract: A wide angle lens includes: a positive first lens group, a second lens group, constituted by two or fewer lenses, that moves during focusing operations, and a third lens group that includes at least one positive lens, provided in this order from the object side. The first lens group includes at least a positive meniscus lens with a convex surface toward the object side, a negative meniscus lens with a convex surface toward the object side, a lens having a concave surface with a radius of curvature having a smaller absolute value toward the image side, a negative lens, a cemented lens formed by a positive lens and a negative lens, and an aperture stop provided adjacent to the cemented lens toward the image side thereof, provided in this order from the object side. The wide angle lens satisfies a predetermined conditional formula.

Abstract translation: 广角镜头包括：在聚焦操作期间移动的由两个或更少透镜构成的正的第一透镜组，第二透镜组，以及包括至少一个正透镜的第三透镜组，其从该物体依次设置 侧。 第一透镜组至少包括具有朝向物体侧的凸表面的正弯月透镜，具有朝向物体侧的凸表面的负弯月形透镜，具有凹面的具有较小绝对值的凹面的透镜朝向 图像侧，负透镜，由正透镜和负透镜形成的胶合透镜，以及邻接胶合透镜朝向其像侧设置的孔径光阑，从物体侧依次设置。 广角镜头满足预定的条件公式。

公开(公告)号：US09116333B2

公开(公告)日：2015-08-25

申请号：US14154261

申请日：2014-01-14

Applicant: FUJIFILM Corporation

Inventor： Taiga Noda ,  Michio Cho

IPC: G02B15/14 ,  G02B13/18 ,  G02B15/173 ,  G02B27/64 ,  G03B17/04

CPC classification number: G02B15/14 ,  G02B13/18 ,  G02B15/173 ,  G02B27/646 ,  G03B17/04

Abstract: A zoom lens includes a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power, which are in this order from an object side, and a stop located between a most image-side surface of the second lens group and a most image-side surface of the third lens group. Distances between the lens groups change when magnification is changed from a wide angle end to a telephoto end. The third lens group consists of a positive lens, a cemented lens of a positive lens and a negative lens, a negative meniscus lens with its concave surface facing the object side, and a biconvex lens, which are in this order from the object side. Further, a predetermined conditional formula is satisfied.

Abstract translation: 变焦透镜包括具有正屈光力的第一透镜组，具有负折光力的第二透镜组，具有正折光力的第三透镜组和具有正折射光焦度的第四透镜组，其从物体侧开始 以及位于第二透镜组的最大像侧表面和第三透镜组的最大像侧表面之间的光阑。 当放大倍率从广角端变为长焦端时，镜头组之间的距离发生变化。 第三透镜组包括正透镜，正透镜的胶合透镜和负透镜，其凹面朝向物体侧的负弯月形透镜以及双面透镜，从物体侧开始依次。 此外，满足预定的条件公式。

公开(公告)号：US09097879B2

公开(公告)日：2015-08-04

申请号：US14299165

申请日：2014-06-09

Applicant: FUJIFILM Corporation

Inventor： Taiga Noda ,  Michio Cho

IPC: G02B13/04 ,  G02B15/177

CPC classification number: G02B13/04 ,  G02B15/177

Abstract: A zoom lens includes, in order from the object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power and a third lens group having a positive refractive power, wherein, during magnification change from the wide-angle end to the telephoto end, at least the first lens group and the second lens group are moved along the optical axis such that the interval between the first lens group and the second lens group is decreased and the interval between the second lens group and the third lens group is increased. The second lens group includes, in order from the object side, a positive lens, a cemented lens formed by a positive lens and a negative lens, a positive lens and a negative lens. The zoom lens satisfies given conditional expressions.

Abstract translation: 变焦透镜从物体依次包括具有负折光力的第一透镜组，具有正折射光焦度的第二透镜组和具有正折光力的第三透镜组，其中，在从宽的放大倍率 至少第一透镜组和第二透镜组沿着光轴移动，使得第一透镜组和第二透镜组之间的间隔减小，并且第二透镜组和第二透镜组之间的间隔 第三透镜组增加。 第二透镜组从物体侧依次包括正透镜，由正透镜和负透镜形成的胶合透镜，正透镜和负透镜。 变焦镜头满足给定的条件表达式。

公开(公告)号：US09069158B2

公开(公告)日：2015-06-30

申请号：US14173223

申请日：2014-02-05

Applicant: FUJIFILM Corporation

Inventor： Shinkichi Ikeda ,  Michio Cho

IPC: G02B15/15 ,  G02B15/14 ,  G02B13/00 ,  G02B13/18 ,  G02B15/17

CPC classification number: G02B15/14 ,  G02B13/009 ,  G02B13/18 ,  G02B15/17 ,  G02B15/173

Abstract: A variable-magnification optical-system substantially consists of a first-lens-group having positive-refractive-power, a second-lens-group having negative-refractive-power, a third-lens-group having negative-refractive-power, a fourth-lens-group having negative-refractive-power, an aperture-stop, and a fifth-lens-group having positive-refractive-power in this order from an object-side along an optical-axis. The second-lens-group, third-lens-group and fourth-lens-group move when magnification is changed from a wide-angle-end to a telephoto-end. The first-lens-group substantially consists of a 1f-th lens-group having negative-refractive-power, a 1m-th lens-group having positive-refractive-power and a 1r-th lens-group substantially consisting of a 1r1-th lens having positive-refractive-power with its strong convex-surface facing the object-side, a biconvex 1r2-th lens and a convex meniscus 1r3-th lens with its convex-surface facing the object-side, and the 1r-th lens-group having positive-refractive-power as a whole in this order from the object-side. The 1f-th lens-group substantially consists of a concave meniscus-lens with its convex-surface facing the object-side and a negative-lens in this order from the object-side.

Abstract translation: 可变放大率光学系统基本上由具有正折光力的第一透镜组，具有负折光力的第二透镜组，具有负折光力的第三透镜组， 具有负折光力的第四透镜组，具有正光折射力的孔径光阑和第五透镜组，从物体侧沿着光轴依次具有正屈光力。 第二透镜组，第三透镜​​组和第四透镜组在从广角端变为长焦端时移动。 第一透镜组基本上由具有负折光力的1f透镜组，具有正折光力的第1m透镜组和第1透镜组基本上由1r1- 具有朝向物体侧的强凸面的正屈光力透镜，具有凸面朝向物侧的双凸面1r2透镜和凸弯月面1r3透镜，第1r 从物体侧起依次具有正折射力的透镜组。 第1f透镜组基本上由凹面弯曲透镜构成，其凸面朝向物体侧，负像透镜依次从物体侧开始。