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公开(公告)号：US20210003819A1
公开(公告)日：2021-01-07
申请号：US17020521
申请日：2020-09-14
Applicant: FUJIFILM Corporation
Inventor： Tetsuya ORI
Abstract: The rear converter lens consists 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; and a third lens group that has a positive refractive power. The first lens group consists of a cemented lens in which a negative lens concave toward the image side and a positive lens convex toward the object side are cemented. The second lens group consists of a cemented lens in which a negative lens concave toward the image side, a positive lens convex toward both sides, and a negative lens concave toward the object side are cemented. The third lens group consists of a cemented lens in which a positive lens convex toward the object side and a negative lens are cemented. The rear converter lens satisfies predetermined Conditional Expressions (1) and (2).
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公开(公告)号：US20180095246A1
公开(公告)日：2018-04-05
申请号：US15717999
申请日：2017-09-28
Applicant: FUJIFILM Corporation
Inventor： Ryosuke NAGAMI , Tetsuya ORI
CPC classification number: G02B13/0035 , G02B7/09 , G02B9/26 , G02B13/00 , G02B13/0045 , G02B13/006
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：US20200018936A1
公开(公告)日：2020-01-16
申请号：US16453653
申请日：2019-06-26
Applicant: FUJIFILM Corporation
Inventor： Tetsuya ORI
Abstract: A rear converter lens consists of, in order from the object side, a positive first lens group, a negative second lens group, and a positive third lens group. The first lens group consists of a cemented lens in which a negative lens concave toward the image side and a positive lens convex toward the object side are cemented, the second lens group consists of a cemented lens in which a negative lens concave toward the image side, a positive lens convex toward both sides, and a negative lens concave toward the object side are cemented, and the third lens group consists of, in order from the object side, a third lens group-first lens that is a positive lens convex toward the object side and a third lens group-second lens that is a negative lens.
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公开(公告)号：US20190094496A1
公开(公告)日：2019-03-28
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：US20180259754A1
公开(公告)日：2018-09-13
申请号：US15910043
申请日：2018-03-02
Applicant: FUJIFILM Corporation
Inventor： Shunsuke MIYAGISHIMA , Tetsuya ORI
CPC classification number: G02B15/20 , G02B13/0045 , G02B13/009 , G02B13/02 , G02B15/17 , G02B27/646
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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Patent Agency Ranking
公开(公告)号：US20150309290A1
公开(公告)日：2015-10-29
申请号：US14690801
申请日：2015-04-20
Applicant: FUJIFILM Corporation
Inventor： Tetsuya ORI , Michio CHO
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
Abstract translation: 一个五组变焦透镜，从物体侧起依次为正，负，负，正和正组。 第一组包括具有朝向图像侧的凹面的负凹凸透镜，正透镜和正透镜。 第二组包括负透镜，图像侧表面的曲率半径绝对值小于物体侧表面的绝对值，双凹透镜和双凸透镜。 第三组包括具有物体侧表面的负透镜的曲率半径的绝对值小于图像侧表面的绝对值，并且在聚焦在更近的物体上移动。 第五组包括包括双凸透镜的正5-A组和包括双凹透镜和双凸透镜的负第五-B组，其中满足条件表达式（1）：0.22
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公开(公告)号：US20150103412A1
公开(公告)日：2015-04-16
申请号：US14551423
申请日：2014-11-24
Applicant: FUJIFILM Corporation
Inventor： Tetsuya ORI
IPC: G02B15/177 , 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：US20210255422A1
公开(公告)日：2021-08-19
申请号：US17307529
申请日：2021-05-04
Applicant: FUJIFILM Corporation
Inventor： Tetsuya ORI
Abstract: The rear converter lens consists 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; and a third lens group that has a positive refractive power. The first lens group consists of a cemented lens in which a negative lens concave toward the image side and a positive lens convex toward the object side are cemented. The second lens group consists of a cemented lens in which a negative lens concave toward the image side, a positive lens convex toward both sides, and a negative lens concave toward the object side are cemented. The third lens group consists of a cemented lens in which a positive lens convex toward the object side and a negative lens are cemented. The rear converter lens satisfies predetermined Conditional Expressions (1) and (2).
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公开(公告)号：US20190086645A1
公开(公告)日：2019-03-21
申请号：US16112420
申请日：2018-08-24
Applicant: FUJIFILM Corporation
Inventor： Tetsuya ORI
IPC: G02B13/02
Abstract: The rear converter lens consists 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; and a third lens group that has a positive refractive power. The first lens group consists of a cemented lens in which a negative lens concave toward the image side and a positive lens convex toward the object side are cemented. The second lens group consists of a cemented lens in which a negative lens concave toward the image side, a positive lens convex toward both sides, and a negative lens concave toward the object side are cemented. The third lens group consists of a cemented lens in which a positive lens convex toward the object side and a negative lens are cemented. The rear converter lens satisfies predetermined Conditional Expressions (1) and (2).
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公开(公告)号：US20180164540A1
公开(公告)日：2018-06-14
申请号：US15822592
申请日：2017-11-27
Applicant: FUJIFILM Corporation
Inventor： Daiki KAWAMURA , Tetsuya ORI
CPC classification number: G02B7/10 , G02B9/64 , G02B15/163 , G02B15/17 , G02B27/646
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, and a third lens group. In the second lens group, a first focus lens group having a negative refractive power is disposed to be closest to the object side, and a second focus lens group having a positive refractive power is disposed to be closest to the image side. During focusing, only the first and second focus lens groups move by changing the mutual spacing therebetween. The first lens group has two positive lenses and one negative lens. The first focus lens group consists of two or less lenses including a negative lens. Predetermined conditional expressions are satisfied.
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