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公开(公告)号：US10739556B2
公开(公告)日：2020-08-11
申请号：US16133479
申请日：2018-09-17
Applicant: FUJIFILM Corporation
Inventor： Shunsuke Miyagishima , Tetsuya Ori
Abstract: The imaging lens consists of, in order from an object side, a first lens group having a positive refractive power, a second lens group having a positive refractive power, a stop, a third lens group having a negative refractive power, and a fourth lens group. The first lens group has, in order from the object side, a positive single lens, and two or more cemented lenses. The second lens group consists of a positive lens and a negative lens. During image blur correction, only the third lens group moves. A conditional expression relating to the back focal length Bf and the lens system total length TTL is satisfied: 2
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公开(公告)号：US09651761B2
公开(公告)日：2017-05-16
申请号：US14690901
申请日：2015-04-20
Applicant: FUJIFILM Corporation
Inventor： Tetsuya Ori , Michio Cho
CPC classification number: G02B15/17 , G02B15/14 , G02B27/64 , 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: −4
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公开(公告)号：US09297989B2
公开(公告)日：2016-03-29
申请号：US14551423
申请日：2014-11-24
Applicant: FUJIFILM Corporation
Inventor： Tetsuya Ori
IPC: G02B15/14 , G02B15/177 , G02B13/18 , G02B13/00 , G02B15/22
CPC classification number: G02B15/177 , G02B13/0045 , G02B13/006 , G02B13/009 , G02B13/18 , G02B15/22
Abstract: A zoom lens substantially consists of a negative first lens group, a positive second lens group, and a positive third lens group; wherein the first lens group substantially consists of a two negative lenses with concave surfaces toward the image side and a positive lens with a convex surface toward the object side; the second lens group substantially consists of a stop; a positive lens with a convex surface toward the object side; a positive cemented lens, which is formed by a positive lens with a convex surface toward the object side and a negative lens with a concave surface toward the image side together; and a negative aspherical lens with a convex surface toward the image side; and the third lens group substantially consists of a positive lens.
Abstract translation: 变焦透镜基本由负的第一透镜组，正的第二透镜组和正的第三透镜组组成; 其中所述第一透镜组基本上由具有朝向所述像侧的凹面的两个负透镜和朝向所述物体侧的具有凸面的正透镜组成; 第二透镜组基本上由止挡件组成; 具有朝向物体侧的凸面的正透镜; 由正面透镜朝向物体侧形成的正透镜和具有朝向像侧的凹面的负透镜一起形成的正胶合透镜; 以及具有朝向图像侧的凸表面的负非球面透镜; 并且第三透镜组基本上由正透镜组成。
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公开(公告)号：US10268030B2
公开(公告)日：2019-04-23
申请号：US15910043
申请日：2018-03-02
Applicant: FUJIFILM Corporation
Inventor： Shunsuke Miyagishima , Tetsuya Ori
Abstract: The zoom lens consisting of, in order from an object side: a first lens group that has a positive refractive power; a second lens group that has a negative refractive power; a third lens group that has a negative refractive power; an intermediate part; and a final lens group that has a positive refractive power. The first lens group consists of three lenses, and has a cemented lens which is formed by cementing at least one positive lens and at least one negative lens. The second lens group consists of, in order from the object side, a negative meniscus lens, a biconcave lens, and a biconvex lens. The third lens group consists of one lens. The final lens group has a lens, which is convex toward an image side, at a position closest to the image side. Each lens group moves in a predetermined direction during zooming, and only the third lens group moves in the direction of the optical axis during focusing, and predetermined conditional expressions are satisfied.
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公开(公告)号：US10095009B2
公开(公告)日：2018-10-09
申请号：US14857844
申请日：2015-09-18
Applicant: FUJIFILM Corporation
Inventor： Tetsuya Ori , Michio Cho
IPC: G02B15/163 , G02B27/64 , G02B15/20 , G02B15/173
Abstract: A zoom lens is constituted essentially by six lens groups, in order from the object side to the image 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 positive refractive power; a fifth lens group having a negative refractive power; and a sixth lens group having a positive refractive power. The distances between all pairs of adjacent lens groups change when changing magnification from the wide angle end to the telephoto end, and Conditional Formula (1) below is satisfied: −5
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Patent Agency Ranking
公开(公告)号：US08699147B2
公开(公告)日：2014-04-15
申请号：US13894483
申请日：2013-05-15
Applicant: FUJIFILM Corporation
Inventor： Tetsuya Ori
IPC: G02B15/177
CPC classification number: G02B15/14 , G02B15/177
Abstract: A zoom lens includes a first lens group having a negative power, a second lens group having a positive power, and a third lens group having a positive power arranged in this order from an object side and an aperture stop which is moved integrally with the second lens group, and performs zooming by changing a distance between the first and second lens groups and a distance between the second and third lens groups, wherein the second lens group is composed of a second group first lens having a positive power with a convex surface facing the object side, a cemented lens having a positive power as a whole, and a second group fourth lens having a negative power and at least one aspheric surface with a concave surface facing the image side arranged in this order from the object side.
Abstract translation: 变焦透镜包括具有负功率的第一透镜组，具有正光焦度的第二透镜组和具有从物体侧依次布置的正光焦度的第三透镜组和与第二透镜组一体地移动的孔径光阑 透镜组，并且通过改变第一和第二透镜组之间的距离和第二和第三透镜组之间的距离来执行变焦，其中第二透镜组由具有正向功率的第二组第一透镜组构成，其具有面向 物体侧，整体具有正的功率的胶合透镜以及具有负光焦度的第二组第四透镜和具有面对像侧的凹面的至少一个非球面从物体侧依次排列。
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公开(公告)号：US11828923B2
公开(公告)日：2023-11-28
申请号：US17166677
申请日：2021-02-03
Applicant: FUJIFILM Corporation
Inventor： Masato Kondo , Tetsuya Ori , Michio Cho
CPC classification number: G02B15/143 , G02B15/20 , G02B27/0025
Abstract: An imaging lens consists of, in order from the object side, a first lens group, a stop, a positive second lens group, and a third lens group. During focusing, at least the second lens group moves and the third lens group does not move. The second lens group includes at least two negative lenses. The third lens group consists of one negative lens and one positive lens.
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公开(公告)号：US10197893B2
公开(公告)日：2019-02-05
申请号：US15428169
申请日：2017-02-09
Applicant: FUJIFILM Corporation
Inventor： Tetsuya Ori , Michio Cho
Abstract: Provided are a rear converter lens and an imaging apparatus capable of achieving favorable optical performance and an appropriate back focal length with high magnification. The rear converter lens RCL consists of, in order from the object side, four lens-groups of positive, negative, negative, and positive lens-groups. In order from the object side, a first lens-group RG1 consists of a negative lens RL11 and a positive lens RL12, a second lens-group RG2 consists of a negative lens RL21 and a positive lens RL22, a third lens-group RG3 consists of a negative lens RL31, a positive lens RL32, and a negative lens RL33, and a fourth lens-group RG4 consists of a biconvex lens RL41 and a negative lens RL42. Here, 0.22
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公开(公告)号：US10168507B2
公开(公告)日：2019-01-01
申请号：US15717999
申请日：2017-09-28
Applicant: FUJIFILM Corporation
Inventor： Ryosuke Nagami , Tetsuya Ori
Abstract: The imaging 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, and a third lens group having a positive refractive power. The first lens group has a positive lens, a positive lens, and a negative lens successively in order from a position closest to the object side. The second lens group consists of one negative lens. The third lens group includes two or less lenses. During focusing, only the second lens group moves. The following conditional expression, which relates to a focal length f of the whole system in a state where the object at infinity is in focus and a focal length f2 of the second lens group, is satisfied: 0.4
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公开(公告)号：US09810889B2
公开(公告)日：2017-11-07
申请号：US14635195
申请日：2015-03-02
Applicant: FUJIFILM Corporation
Inventor： Tetsuya Ori , Michio Cho
IPC: G02B27/64 , G02B15/14 , G02B15/163 , G02B15/173 , G02B15/20
CPC classification number: G02B15/163 , G02B15/173 , G02B15/20 , G02B27/646
Abstract: A zoom lens consists of a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having positive refractive power in this order from an object side. The third lens group consists of a 3-1st lens group having positive refractive power and a 3-2nd lens group having negative refractive power in this order from the object side. A hand shake blur is corrected by moving the 3-2nd lens group in a direction perpendicular to optical axis. Magnification is changed by changing distances between the lens groups while the fifth lens group is fixed.
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