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公开(公告)号：US09128267B2
公开(公告)日：2015-09-08
申请号：US14226172
申请日：2014-03-26
Applicant: FUJIFILM Corporation
Inventor： Tatsuyuki Ogino , Michio Cho , Yoshiaki Ishii
CPC classification number: 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 the object side, a fourth lens that has a meniscus shape which is convex toward the image side; and a fifth lens that has a negative refractive power and has at least one inflection point on an image side surface. Further, the following conditional expression (1) is satisfied. 1.4
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 具有向物体侧凸出的弯月形状的透镜，具有向图像侧凸出的弯月形状的第四透镜; 以及具有负屈光力并且在图像侧表面上具有至少一个拐点的第五透镜。 此外，满足以下条件式（1）。 1.4
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公开(公告)号：US09046675B2
公开(公告)日：2015-06-02
申请号：US14189480
申请日：2014-02-25
Applicant: FUJIFILM Corporation
Inventor： Hiroki Saito , Michio Cho , Toru Ito
IPC: G02B15/14 , G02B15/177 , G02B27/64
CPC classification number: G02B15/14 , G02B15/177 , G02B27/646
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 lens group and the second lens group, the first lens group is formed of a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, and a fourth lens having a positive refractive power, disposed in order from the object side. Then, when the focal length of the entire system at the wide angle end is taken as fw and the focal length of the second lens group are taken as f2, the zoom lens is configured to satisfy a conditional expression 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，从物体侧依次布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屈光力的第一透镜，具有正屈光力的第二透镜，具有负折射光焦度的第三透镜和具有正折射光焦度的第四透镜形成，从物侧 。 然后，将广角端的整个系统的焦距作为fw，将第二透镜组的焦距设为f2时，变焦镜头被配置为满足以下条件表达式：0.00
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公开(公告)号：US09042025B2
公开(公告)日：2015-05-26
申请号：US14211470
申请日：2014-03-14
Applicant: FUJIFILM Corporation
Inventor： Kenichi Sato , Michio Cho
CPC classification number: G02B13/0035 , G02B9/12 , G02B9/14 , G02B9/16 , G02B13/18 , G02B15/173 , G02B25/001
Abstract: In order from the object side, a first lens having positive power with a convex observation-side surface, a second lens having negative power and a meniscus shape with a concave object-side surface, and a third lens having positive power with an observation-side surface having a smaller radius of curvature than that of an object-side surface are provided. The first, second and third lenses are single lenses. The conditional expressions (1): 0.9
Abstract translation: 从物体侧开始，具有具有凸观察侧表面的正电力的第一透镜，具有负光焦度的第二透镜和具有凹面物体侧表面的弯液面形状的第一透镜以及具有观察侧表面的正光焦度的第三透镜， 提供具有比物体侧表面更小的曲率半径的侧表面。 第一，第二和第三透镜是单透镜。 条件式（1）：0.9
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公开(公告)号：US09025255B2
公开(公告)日：2015-05-05
申请号：US14269428
申请日：2014-05-05
Applicant: FUJIFILM Corporation
Inventor： Nobuaki Toyama , Michio Cho
IPC: G02B15/177 , G02B13/00
CPC classification number: G02B15/177 , G02B13/009
Abstract: A zoom lens includes first, second, third, and fourth lens groups respectively having positive, negative, negative, and positive powers. The first lens group includes an 11 lens group having a negative power, which is fixed during focusing operations, a lens group having a positive power, which moves during focusing operations, and a lens group having a positive power, which is fixed during focusing operations. The 11 lens group includes two negative meniscus lenses having concave surfaces toward an image side, and a cemented lens constituted by a biconcave lens toward an object side and a biconvex lens toward the image side. A distance D4 between the second meniscus lens and the cemented lens and the focal distance f1 of the first lens group satisfy the relationship: 0.60
Abstract translation: 变焦透镜包括分别具有正，负，负和正功率的第一，第二，第三和第四透镜组。 第一透镜组包括：在聚焦操作期间固定的负功率的11透镜组，在聚焦操作期间移动的具有正功率的透镜组，以及在聚焦操作期间固定的具有正功率的透镜组 。 11透镜组包括具有朝向图像侧的凹面的两个负弯月形透镜以及朝向物体侧的双凹透镜构成的胶合透镜和朝向像侧的双凸透镜。 第二弯月透镜与胶合透镜之间的距离D4和第一透镜组的焦距f1满足关系：0.60
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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
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Patent Agency Ranking
公开(公告)号：US09001433B2
公开(公告)日：2015-04-07
申请号：US14269343
申请日：2014-05-05
Applicant: FUJIFILM Corporation
Inventor： Nobuaki Toyama , Michio Cho
IPC: G02B15/14 , G02B15/177 , G02B13/18 , G02B15/17
CPC classification number: G02B15/177 , G02B13/18 , G02B15/17
Abstract: A zoom lens includes first, second, third, and fourth lens groups respectively having positive, negative, negative, and positive powers. The first lens group includes a first lens subgroup having a negative power, which is fixed while focusing, a second lens subgroup having a positive power, which moves while focusing, and a third lens subgroup having a positive power, which is fixed while focusing. The second lens subgroup includes a positive lens having a surface having a radius of curvature with a smaller absolute value toward the image side; and a cemented lens constituted by a negative lens toward the object side and a positive lens toward the image side, cemented together at a joint surface having a convex surface toward the object side. The focal distance f12 of the second lens subgroup and the focal length fw of the entire system at the wide angle end satisfy the relationship: 3.0
Abstract translation: 变焦透镜包括分别具有正，负，负和正功率的第一，第二，第三和第四透镜组。 第一透镜组包括具有负功率的第一透镜子组，其在聚焦时固定，具有正功率的第二透镜子组在聚焦时移动;以及具有正功率的第三透镜子组，其在聚焦时固定。 第二透镜子组包括具有朝向图像侧的具有较小绝对值的曲率半径的表面的正透镜; 并且由朝向物体侧的负透镜构成的胶合透镜和朝向像侧的正透镜，在朝向物体侧的具有凸面的接合面粘合。 第二透镜子组的焦距f12和广角端的整个系统的焦距fw满足关系式：3.0
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公开(公告)号：US08830593B2
公开(公告)日：2014-09-09
申请号：US14191975
申请日：2014-02-27
Applicant: FUJIFILM Corporation
Inventor： Hiroki Saito , Michio Cho , Toru Ito
IPC: G02B15/14
CPC classification number: G02B15/177 , G02B13/009 , G02B27/646
Abstract: A zoom lens includes: a first lens group having a negative refractive power; and a second lens group having a positive refractive power, provided in this order from an object side. Magnification is changed by moving the first lens group and the second lens group. The first lens group includes a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, and a fourth lens having a positive refractive power, provided in this order from the object side. The zoom lens satisfies the following conditional formulae, when fw is the focal length of the entire system at the wide angle end, f1 is the focal length of the first lens group, and f2 is the focal length of the second lens group: 0.00
Abstract translation: 变焦透镜包括：具有负屈光力的第一透镜组; 以及具有正屈光力的第二透镜组，从物体侧依次设置。 通过移动第一透镜组和第二透镜组来改变放大率。 第一透镜组包括具有负折光力的第一透镜，具有正折射光焦度的第二透镜，具有负折射光焦度的第三透镜和具有正折光力的第四透镜，并且从物体侧开始依次设置 。 变焦透镜满足以下条件式，当fw是广角端的整个系统的焦距时，f1是第一透镜组的焦距，f2是第二透镜组的焦距：0.00 < fw / f2 <0.43（1-5）0.56 <| f1 / f2 | <2.00（2-4）。
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公开(公告)号：US12287457B2
公开(公告)日：2025-04-29
申请号：US17377480
申请日：2021-07-16
Applicant: FUJIFILM Corporation
Inventor： Daiki Kawamura , Michio Cho
Abstract: An imaging lens includes, successively in order from a position closest to an object side, a positive first lens group that does not move during focusing, a stop, and a positive second lens group that moves during focusing. The second lens group consists of all lenses that integrally move during focusing. The imaging lens satisfies predetermined conditional expressions.
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公开(公告)号：US11454789B2
公开(公告)日：2022-09-27
申请号：US16984256
申请日：2020-08-04
Applicant: FUJIFILM Corporation
Inventor： Taiga Noda , Michio Cho
Abstract: A zoom lens includes a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a fifth lens group in order from an object side. In a case of zooming, an interval with an adjacent lens group is changed. The third lens group includes two positive lenses consecutively arranged in order from a side closest to the object side to an image side. The fifth lens group consists of a negative meniscus lens having a concave surface toward the object side and a positive lens having a convex surface toward the object side in order from the object side to the image side.
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公开(公告)号：US10139590B2
公开(公告)日：2018-11-27
申请号：US15712235
申请日：2017-09-22
Applicant: FUJIFILM Corporation
Inventor： Ryoko Otomo , Michio Cho
Abstract: Provided are an imaging lens, which has a small F number and in which various aberrations are satisfactorily corrected, and an imaging apparatus including the imaging lens.The imaging lens includes, in order from an object side: a first lens that has a biconcave shape; a second lens that is convex toward an image side and has a positive refractive power; a third lens that has a biconvex shape; a fourth lens that has a negative refractive power; a fifth lens that has a positive refractive power; and a sixth lens that has a negative refractive power. Assuming that L1f and L1r are paraxial radii of curvature of an object side surface and an image side surface of the first lens, Conditional Expression (1) is satisfied. 0.1
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