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1. 发明授权

US09638891B2 Imaging lens and imaging apparatus 有权
公开(公告)号：US09638891B2
公开(公告)日：2017-05-02
申请号：US14855965
申请日：2015-09-16
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka , Michio Cho , Takashi Kunugise
IPC分类号： G02B9/64 , G02B15/16
CPC分类号： G02B9/64 , G02B15/161
摘要： An imaging lens consists of, in order from the object side, a front group, a stop, and a rear group, wherein the front group includes, in order from the most-object side, a positive first lens, a negative second lens, a negative third lens which are adjacently disposed, and further includes a final lens of the front group adjacent to the stop, with the surface toward the stop being convex toward the image side, the rear group includes, in order from the image side, two sets of cemented lenses having positive refractive powers, which are adjacently disposed, the object-side cemented lens of the two sets of cemented lenses is formed by cementing a positive lens and a negative meniscus lens together, and the image-side cemented lens is formed by cementing a negative meniscus lens and a positive lens together.

2. 发明授权

US09223120B2 Imaging lens and imaging apparatus 有权
标题翻译：成像镜头和成像设备
公开(公告)号：US09223120B2
公开(公告)日：2015-12-29
申请号：US14450304
申请日：2014-08-04
申请人： FUJIFILM CORPORATION
发明人： Ukyo Tomioka , Michio Cho
IPC分类号： G02B13/02 , G02B15/14
CPC分类号： G02B15/14 , G02B13/02
摘要： An imaging lens includes: a positive first lens group; a positive second lens group which moves while focusing; and a third lens group. The first lens group includes a positive lens having a convex surface with a radius of curvature having a small absolute value toward the image side, a positive biconvex lens, a negative lens having a concave surface with a radius of curvature having a small absolute value toward the object side, and a positive lens having a convex surface with a radius of curvature having a small absolute value toward the object side, in this order from the object side. The second lens group includes a positive lens having a convex surface with a radius of curvature having a small absolute value toward the object side. The third lens group includes two positive lenses and one negative lens. The imaging lens satisfies a predetermined conditional formula.
摘要翻译：成像透镜包括：正的第一透镜组; 聚焦时移动的正的第二透镜组; 和第三透镜组。第一透镜组包括正透镜，其具有朝向像侧的具有小的绝对值的曲率半径的凸表面，正双凸透镜，具有具有小绝对值的具有小绝对值的曲率半径的凹表面的负透镜朝向物体侧，以及从物体侧起依次具有具有朝向物体侧的具有小的绝对值的曲率半径的凸面的正透镜。第二透镜组包括具有朝向物体侧具有小绝对值的具有曲率半径的凸表面的正透镜。第三透镜组包括两个正透镜和一个负透镜。成像透镜满足预定的条件公式。

3. 发明授权

US11175486B2 Zoom lens and imaging apparatus 有权
公开(公告)号：US11175486B2
公开(公告)日：2021-11-16
申请号：US16598791
申请日：2019-10-10
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka
IPC分类号： G02B15/14 , G02B15/20 , G02B15/173
摘要： 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 stop, and a negative fourth lens group. During zooming, the second and third lens groups move. The fourth lens group consists of, in order from the object side, a fourth A lens group, a negative fourth B lens group moving during image blur correction, a positive fourth C lens group, and a negative fourth D lens group moving during focusing, and a positive fourth E lens group. The zoom lens satisfies predetermined conditional expressions.

4. 发明授权

US09116334B2 Variable magnification optical system and imaging apparatus 有权
标题翻译：可变放大光学系统和成像设备
公开(公告)号：US09116334B2
公开(公告)日：2015-08-25
申请号：US14193907
申请日：2014-02-28
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka , Michio Cho
IPC分类号： G02B15/14 , G02B13/18 , G02B15/173
CPC分类号： G02B15/14 , G02B13/18 , G02B15/173
摘要： A variable magnification optical system consists of a positive first lens-group, a negative second lens-group, a positive third lens-group and a positive fourth lens-group in this order from an object side. The first lens-group and the third lens-group are fixed when magnification is changed from a wide-angle end to a telephoto end, and the magnification is changed from the wide-angle end to the telephoto end by moving the second lens-group toward an image side, and correction of an image plane and focusing, which have been necessitated by magnification change, are performed by moving the fourth lens-group. The first lens-group consists of two positive lenses and a negative lens in this order from the object side. The second lens-group consists of a negative 21st lens, a positive 22nd lens, a negative 23rd lens and a negative 24th lens in this order from the object side.
摘要翻译：可变倍率光学系统从物体侧依次包括正的第一透镜组，负的第二透镜组，正的第三透镜组和正的第四透镜组。第一透镜组和第三透镜组在从广角端到望远端变化时是固定的，并且通过移动第二透镜组将倍率从广角端变为远摄端通过移动第四透镜组来执行通过放大变化所必需的图像平面和聚焦的校正。第一透镜组由物体侧依次由两个正透镜和负透镜组成。第二透镜组由物体侧依次由负的第21透镜，正22透镜，负的第23透镜和负的第24透镜组成。

5. 发明授权

US10852535B2 Imaging lens and optical apparatus 有权
公开(公告)号：US10852535B2
公开(公告)日：2020-12-01
申请号：US16133038
申请日：2018-09-17
申请人： FUJIFILM Corporation
发明人： Yukiko Nagatoshi , Shunsuke Miyagishima , Kazuyoshi Okada , Ukyo Tomioka , Masaru Yonezawa , Yasutaka Shimada
IPC分类号： G02B27/00 , G02B13/00 , G02B9/64 , G02B13/04 , G02B15/177
摘要： The imaging lens includes at least one negative lens that satisfies predetermined Conditional Expressions (1) to (3) indicating conditions in which dispersion is relatively low and refractive index is high while having a negative rate of change of the refractive index. A positive lens having a largest Abbe number at the d line among positive lenses included in the imaging lens satisfies predetermined Conditional Expressions (4) and (5).

6. 发明授权

US09778445B2 Variable magnification optical system and imaging apparatus 有权
公开(公告)号：US09778445B2
公开(公告)日：2017-10-03
申请号：US15215786
申请日：2016-07-21
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka , Michio Cho
IPC分类号： G02B15/14 , G02B15/173 , G02B15/20 , G02B13/00 , G02B27/00
CPC分类号： G02B15/14 , G02B13/009 , G02B15/173 , G02B15/20 , G02B27/0025
摘要： A variable magnification optical system includes, in order from the object side: a positive first lens group; a negative second lens group; a positive third lens group; a negative fourth lens group; and a positive fifth lens group. When changing magnification from the wide angle end to the telephoto end, the first and third lens groups are fixed with respect to an image formation plane, the second lens group moves toward the image side, the fourth lens group moves, and the distance between the fourth and fifth lens groups changes. A rearward lens group constituted by the third, fourth, and fifth lens groups has a positive refractive power throughout the variable magnification range. The transverse magnification ratio of the fourth lens group when focused on an object at infinity is negative throughout the variable magnification range.

7. 发明授权

US09323031B2 Imaging lens and imaging apparatus 有权
标题翻译：成像镜头和成像设备
公开(公告)号：US09323031B2
公开(公告)日：2016-04-26
申请号：US14507863
申请日：2014-10-07
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka
IPC分类号： G02B13/04 , G02B9/64 , G02B13/00
CPC分类号： G02B13/04 , G02B9/64 , G02B13/0045
摘要： An imaging lens consists essentially of a front-group consisting of a first lens having a negative meniscus shape with its convex surface facing an object side, a second lens having negative refractive power, a third lens having positive refractive power, a fourth lens having a negative meniscus shape with its concave surface facing an image side and a fifth lens having positive refractive power, and the front-group having positive refractive power as a whole, a stop, and a rear-group consisting of a sixth lens having positive refractive power and a seventh lens having a negative meniscus shape with its concave surface facing the object side, and the rear-group having positive refractive power as a whole, in this order from the object side. A predetermined conditional formula about a combined focal length of the first lens and the second lens, and a focal length of an entire system is satisfied.
摘要翻译：成像透镜基本上由前面组成，前组由具有负弯月面形状的凸起表面朝向物体侧的第一透镜，具有负屈光力的第二透镜，具有正屈光力的第三透镜，第四透镜负弯月面形状，其凹面朝向图像侧，第五透镜具有正折光力，并且具有正折射力的前组作为整体，具有正屈光力的第六透镜组成的后组以及从物体侧起依次具有凹面朝向物体侧的具有负弯液面形状的第七透镜和具有整个正屈光力的后组。满足关于第一透镜和第二透镜的组合焦距的预定条件公式以及整个系统的焦距。

8. 发明授权

US10295807B2 Zoom lens and imaging apparatus 有权
公开(公告)号：US10295807B2
公开(公告)日：2019-05-21
申请号：US15433331
申请日：2017-02-15
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka
IPC分类号： G02B15/173 , G02B7/09 , H04N7/18
摘要： The zoom lens includes, in order from an object side, a positive first lens group G1, a negative second lens group G2, a positive third lens group G3, a diaphragm, and a fourth lens group G4. During zooming, only the second lens group G2 and the third lens group G3 move. The first lens group G1 includes, in order from the object side, a cemented lens that is formed by cementing a positive lens and a negative meniscus lens convex toward the object side, a positive lens, and a negative lens. A conditional expression (1): −0.8

9. 发明授权

US09891416B2 Variable magnification optical system and imaging apparatus 有权
公开(公告)号：US09891416B2
公开(公告)日：2018-02-13
申请号：US15215883
申请日：2016-07-21
申请人： FUJIFILM Corporation
发明人： Ukyo Tomioka , Michio Cho
IPC分类号： G02B15/16 , G02B15/20 , G02B15/28 , G02B15/173 , G02B15/24 , G02B13/00
CPC分类号： G02B15/20 , G02B13/009 , G02B15/16 , G02B15/173 , G02B15/24 , G02B15/28
摘要： A variable magnification optical system includes, in order from the object side: a positive first lens group, which is fixed when changing magnification; a negative second lens group that moves from the object side to the image side when changing magnification from the wide angle end to the telephoto end; and a rearward lens group having a positive refractive power throughout the entire variable magnification range that includes at least one lens group that moves when changing magnification. The first lens group includes, in order from the object side, a positive first lens group front group, a positive first lens group middle group, and a first lens group rear group constituted by a negative lens. The first lens group front group and first lens group middle group include cemented lenses formed by cementing a negative lens and a positive lens, provided in this order from the object side, together.

10. 发明授权

US08947786B2 Variable magnification optical system and imaging apparatus 有权
标题翻译：可变放大光学系统和成像设备
公开(公告)号：US08947786B2
公开(公告)日：2015-02-03
申请号：US14061052
申请日：2013-10-23
申请人： Fujifilm Corporation
发明人： Ukyo Tomioka
IPC分类号： G02B15/14 , G02B13/04 , G02B13/14 , G02B13/18 , G02B15/177 , H01L27/146
CPC分类号： G02B13/04 , G02B13/14 , G02B13/18 , G02B15/177 , H01L27/14625
摘要： A variable magnification optical system includes, in order from the object side, a negative first lens group and a positive second lens group, wherein the interval between these lens groups in the optical axis direction is changed during magnification change. The most image-side lens and the second most image-side lens of the first lens group are a negative single lens with a concave surface facing the object side and a positive single lens, respectively. The second lens group includes, in order from the object side, a positive lens disposed at the most object-side position with at least one surface thereof being an aspherical surface, a first cemented lens formed by a negative lens and a positive lens, and a second cemented lens formed by a negative lens and a positive lens.
摘要翻译：可变放大率光学系统从物体侧依次包括负的第一透镜组和正的第二透镜组，其中在放大变化期间这些透镜组之间在光轴方向上的间隔被改变。第一透镜组的最大像侧透镜和第二最大像侧透镜分别是具有面向物体侧的凹面和负单透镜的负单透镜。第二透镜组从物体依次包括设置在最物体侧位置的正透镜，其中至少一个表面是非球面，由负透镜和正透镜形成的第一胶合透镜，以及由负透镜和正透镜形成的第二胶合透镜。

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