-
公开(公告)号：US09335515B2
公开(公告)日：2016-05-10
申请号：US14488314
申请日：2014-09-17
Applicant: FUJIFILM Corporation
Inventor： Motoari Ota , Takuya Tanaka , Sumihiro Nishihata , Michio Cho
CPC classification number: G02B13/0045 , G02B9/60
Abstract: An imaging lens with five lenses arranged as, in order from the object side, a first lens with a positive refractive power and a meniscus shape with a convex surface directed toward the object side, a second lens with a biconcave shape, a third lens with a negative refractive power and a meniscus shape with a convex surface toward the image side, a fourth lens with a positive refractive power, and a fifth lens with a negative refractive power, where an image-side surface of the fifth lens includes a concave surface and at least one inflection point, and a predetermined conditional expression is satisfied that achieves a high imaging performance from a central angle of view to a peripheral angle of view, while achieving reduction of an entire length of the lens.
Abstract translation: 具有五个透镜的成像透镜，从物体侧依次排列成具有正折光力的第一透镜和具有朝向物体侧的凸面的弯月形状，具有双凹形状的第二透镜，具有 具有朝向图像侧的凸面的负屈光力和弯液面形状，具有正屈光力的第四透镜和具有负屈光力的第五透镜，其中第五透镜的图像侧表面包括凹面 和至少一个拐点，并且满足从中心视角到圆周视角实现高成像性能的预定条件表达式，同时实现透镜的整个长度的减小。
-
公开(公告)号：US09274319B2
公开(公告)日：2016-03-01
申请号：US14591075
申请日：2015-01-07
Applicant: FUJIFILM CORPORATION
Inventor： Takuya Tanaka
CPC classification number: G02B13/0045 , G02B3/04 , G02B9/60 , G02B13/18
Abstract: An imaging lens is substantially constituted by five lenses, including: a positive first lens having a convex surface toward the object side; a negative second lens having a concave surface toward the object side; a positive third lens of a meniscus shape with a convex surface toward the object side; a positive fourth lens of a meniscus shape with a concave surface toward the object side; and a negative fifth lens having a concave surface toward the image side, the surface thereof toward the image side being of an aspherical shape having at least one inflection point within a range from an intersection of a principal light ray at a maximum angle of view with the surface toward the image side inwardly toward the optical axis in the radial direction, provided in this order from the object side. The imaging lens satisfies predetermined conditional formulae.
Abstract translation: 成像透镜基本上由五个透镜构成，包括：具有朝向物体侧的凸面的正的第一透镜; 具有朝向物体侧的凹面的负第二透镜; 具有朝向物体侧的凸面的弯液面形状的正的第三透镜; 具有朝向物体侧的凹面的弯液面形状的正的第四透镜; 以及具有朝向图像侧的凹面的负第五透镜，其朝向像侧的表面为非球面形状，其具有在与最大视角的主光线的交点处的至少一个拐点的范围内， 朝向像侧的表面沿着径向向内朝向光轴，从物体侧开始依次设置。 成像透镜满足预定条件式。
-
公开(公告)号：US11378790B2
公开(公告)日：2022-07-05
申请号：US16826725
申请日：2020-03-23
Applicant: FUJIFILM Corporation
Inventor： Takuya Tanaka , Takuya Tanaka , Masanao Kawana , Yasutaka Shimada
Abstract: The zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming, the second lens group, the third lens group, and the fourth lens group move. The first lens group consists of, in order from an object side, a negative first a lens group, a positive first b lens group that moves during focusing, and a positive first c lens group. A most-image-side lens of the first b lens group is a negative meniscus lens having a convex surface facing an object side.
-
公开(公告)号：US11294158B2
公开(公告)日：2022-04-05
申请号：US16828641
申请日：2020-03-24
Applicant: FUJIFILM Corporation
Inventor： Masanao Kawana , Yasutaka Shimada , Takuya Tanaka , Takuya Tanaka
Abstract: The zoom lens consists of, in order from an object side, a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group. During zooming, the second lens group, the third lens group, and the fourth lens group move. The first lens group consists of, in order from an object side, a negative first a lens group, a positive first b lens group that moves during focusing, and a positive first c lens group. The second lens group includes one positive lens and one or more negative lenses successively in order from a most object side to an image side.
-
公开(公告)号：US10698187B2
公开(公告)日：2020-06-30
申请号：US16120475
申请日：2018-09-04
Applicant: FUJIFILM Corporation
Inventor： Takuya Tanaka , Yasutaka Shimada
IPC: G02B15/02 , G02B15/10 , G02B13/18 , G02B15/167
Abstract: An extender lens is removably inserted into a master lens, performs an increase in a focal length without changing an imaging position due to insertion, and consists of a positive first lens group and a negative second lens group in order from the object side. The first lens group consists of one or more positive lenses in order from the object side, and a three-lens cemented lens having three lenses of a positive lens, a negative lens, and a positive lens having cemented together in order from the object side. The following Conditional Expression (1) relating to an Abbe number ν1n of the negative lens of the three-lens cemented lens is satisfied: 26
-
Patent Agency Ranking
公开(公告)号：US10663699B2
公开(公告)日：2020-05-26
申请号：US16108020
申请日：2018-08-21
Applicant: FUJIFILM Corporation
Inventor： Takuya Tanaka
Abstract: The zoom lens consists of, in order from an object side, a first lens group having a positive power, a second lens group having a positive power, a third lens group having a negative power, a fourth lens group having a negative power, and a fifth lens group having a positive power. During zooming, the first lens group and the fifth lens group remain stationary, and the other lens groups move. The following conditional expression relating to a focal length f1 of the first lens group and a focal length f3 of the third lens group is satisfied: −10
-
公开(公告)号：US10274698B2
公开(公告)日：2019-04-30
申请号：US15879463
申请日：2018-01-25
Applicant: FUJIFILM Corporation
Inventor： Shinkichi Ikeda , Takuya Tanaka
IPC: G02B15/14 , G02B9/60 , G02B13/02 , G02B15/173
Abstract: The zoom lens consists of, in order from an object side: a first lens group that remains stationary during zooming and has a positive refractive power; at least two movable lens groups that are moved during zooming; and a final lens group that remains stationary during zooming and has a positive refractive power. The first lens group consists of, in order from the object side, a first-a lens group that remains stationary during focusing and has a negative refractive power, a first-b lens group that is moved during focusing and has a positive refractive power, and a first-c lens group that remains stationary during focusing and has a positive refractive power. The first-a lens group consists of, in order from the object side, a first lens that has a negative refractive power, a second lens that is convex toward the object side and has a positive refractive power, and a third lens that has a negative refractive power. At least one of the first lens or the third lens satisfies a predetermined conditional expression, and the entire system satisfies the other predetermined conditional expressions.
-
公开(公告)号：US10168513B2
公开(公告)日：2019-01-01
申请号：US15854315
申请日：2017-12-26
Applicant: FUJIFILM Corporation
Inventor： Takuya Tanaka , Masaru Yonezawa
IPC: G02B15/14 , G02B13/02 , G02B15/163 , G02B15/24
Abstract: The zoom 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 positive refractive power; a third lens group that has a negative refractive power; a fourth lens group that has a positive refractive power; and a fifth lens group that has a positive refractive power. The first lens group and the fifth lens group remain stationary with respect to an image plane during zooming. The second lens group, the third lens group, and the fourth lens group are moved by changing distances between the lens groups and adjacent groups in a direction of an optical axis during zooming, and are positioned to be closer to the image side at a telephoto end than at a wide-angle end. A stop is provided between the fourth lens group and the fifth lens group. In addition, Conditional Expression (1) is satisfied. 0.1
-
公开(公告)号：US09400372B2
公开(公告)日：2016-07-26
申请号：US14591050
申请日：2015-01-07
Applicant: FUJIFILM Corporation
Inventor： Takuya Tanaka
CPC classification number: G02B13/0045
Abstract: An imaging lens is substantially constituted by five lenses, including: a positive first lens having a convex surface toward the object side; a negative second lens of a meniscus shape with a concave surface toward the object side; a positive third lens of a meniscus shape with a convex surface toward the object side; a positive fourth lens of a meniscus shape with a concave surface toward the object side; and a negative fifth lens having a concave surface toward the image side, the surface thereof toward the image side being of an aspherical shape having at least one inflection point within a range from an intersection of a principal light ray at a maximum angle of view with the surface toward the image side inwardly toward the optical axis in the radial direction, provided in this order from the object side. The imaging lens satisfies a predetermined conditional formula.
Abstract translation: 成像透镜基本上由五个透镜构成，包括：具有朝向物体侧的凸面的正的第一透镜; 具有朝向物体侧的凹面的弯液面形状的负第二透镜; 具有朝向物体侧的凸表面的弯液面形状的正的第三透镜; 具有朝向物体侧的凹面的弯液面形状的正的第四透镜; 以及具有朝向图像侧的凹面的负第五透镜，其朝向像侧的表面为非球面形状，其具有在与最大视角的主光线的交点处的至少一个拐点的范围内， 朝向像侧的表面沿着径向向内朝向光轴，从物体侧开始依次设置。 成像透镜满足预定的条件公式。
-
公开(公告)号：US09335516B2
公开(公告)日：2016-05-10
申请号：US14492341
申请日：2014-09-22
Applicant: FUJIFILM Corporation
Inventor： Takuya Tanaka , Tatsuro Iwasaki , Michio Cho
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/60 , G02B13/0015 , G02B13/002 , G02B13/18 , G02B27/0025
Abstract: An imaging lens substantially consists of five lenses consisting of, in order from the object side: a first lens having a positive refractive power and having a meniscus shape with the convex surface toward the object side; a second lens having a biconcave shape; a third lens having a positive refractive power and having a meniscus shape with the convex surface toward the image side; a fourth lens having a positive refractive power and having a convex surface toward the image side; and a fifth lens having a negative refractive power, wherein a predetermined conditional expression is satisfied.
Abstract translation: 成像透镜基本上由五个透镜组成，按照从物体侧开始的顺序：具有正折光力并且具有凸面朝向物体侧的弯月面形状的第一透镜; 具有双凹形状的第二透镜; 第三透镜，具有正的折光力并且具有朝向图像侧的凸面的弯月形状; 具有正折光力并具有朝向像侧的凸面的第四透镜; 以及具有负屈光力的第五透镜，其中满足预定条件表达式。
-
-
-
-
-
-
-
-
-
Search Results
32
records
(took 0.021 seconds)
