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公开(公告)号：US20140204477A1
公开(公告)日：2014-07-24
申请号：US14224716
申请日：2014-03-25
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI , Toshiaki KATSUMA , Toru ITO , Masato KONDO , Ryoko OTOMO
IPC: G02B13/00
CPC classification number: G02B13/0015 , G02B13/0045 , G02B13/06
Abstract: An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. An object-side surface of the second lens is concave, and an object-side surface of the third lens is concave. A predetermined conditional formula about a combined focal length of the fourth lens and the fifth lens is satisfied.
Abstract translation: 成像透镜基本上由物体侧依次由负的第一透镜，负的第二透镜，正的第三透镜，正的第四透镜，负的第五透镜和正的第六透镜的六个透镜组成。 第二透镜的物体侧表面是凹形的，并且第三透镜的物体侧表面是凹形的。 满足关于第四透镜和第五透镜的组合焦距的预定条件公式。
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22.发明公开公开(公告)号：US20230333399A1
公开(公告)日：2023-10-19
申请号：US18336008
申请日：2023-06-15
Applicant: FUJIFILM Corporation
Inventor： Shinichi SHIMOTSU , Koichi TANAKA , Toshihiro AOI , Taro ASAMI
CPC classification number: G02B27/646 , G03B5/02 , H04N23/687 , H04N23/6811 , H04N23/11 , G03B2205/0007
Abstract: Provided is a lens device provided in an imaging apparatus body including an image sensor, the lens device including a lens that includes a shake correction lens correcting a shake of an image obtained by imaging light on the image sensor, and images the light, which is incident, on the image sensor, a first drive mechanism that moves the shake correction lens in a direction in which the shake of the image is corrected, by applying power to the shake correction lens along a coordinate plane intersecting an optical axis of the lens, and a second drive mechanism that moves the shake correction lens in a direction in which the image is shifted, by applying power to the shake correction lens along the coordinate plane.
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公开(公告)号：US20230131009A1
公开(公告)日：2023-04-27
申请号：US18066967
申请日：2022-12-15
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI , Toshihiro AOI
Abstract: A variable magnification optical system consists of, in order from an object side to an image side, a first lens group, a second lens group, and a subsequent lens group. The variable magnification optical system satisfies a predetermined conditional expression for a partial dispersion ratio related to F line, C line, and a wavelength of 1970.09 nm, a d-line back focus of the variable magnification optical system at a telephoto end, a back focus in any one wavelength from a wavelength of 1300 nm to a wavelength of 2325.42 nm at the telephoto end, and a d-line focal length of the variable magnification optical system at the telephoto end.
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公开(公告)号：US20190094495A1
公开(公告)日：2019-03-28
申请号：US16131116
申请日：2018-09-14
Applicant: FUJIFILM Corporation
Inventor： Masaru AMANO , Masao MORI , Taro ASAMI , Kazuyoshi OKADA
CPC classification number: G02B9/64 , G02B27/0037 , G02B27/0062
Abstract: The imaging lens includes at least one positive 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. In a case where a lens that satisfies a conditional expression (4) meaning a low dispersion material is included, the lens that satisfies the conditional expression (4) satisfies a predetermined conditional expression (5).
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公开(公告)号：US20180024320A1
公开(公告)日：2018-01-25
申请号：US15622894
申请日：2017-06-14
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI , Takeshi KAMIYA
CPC classification number: G02B13/004 , G02B9/34 , G02B13/14
Abstract: Disclosed are an imaging lens having satisfactory performance in a region of near infrared light, and an imaging apparatus including the imaging lens. The imaging lens includes, in order from an object side, as lenses having refractive power, only four lenses including a positive first lens L1, a negative second lens L2, a positive third lens L3, and a positive fourth lens L4. A conditional expression relating to a focal length fs1 of the first lens L1 with respect to s-line and a focal length fs of the entire system with respect to s-line: 0.5
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Patent Agency Ranking
公开(公告)号：US20160004036A1
公开(公告)日：2016-01-07
申请号：US14848366
申请日：2015-09-09
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI
CPC classification number: G02B13/004 , G02B9/34 , G02B13/06 , G02B13/18
Abstract: An imaging lens consists of four lenses of, in order from the object side, a negative first lens, a negative second lens, a positive third lens, and a positive fourth lens. The following conditional expressions are satisfied: 0.22
Abstract translation: 成像透镜由从物体侧起依次为负的第一透镜，负的第二透镜，正的第三透镜和正的第四透镜的四个透镜组成。 满足以下条件表达式：0.22
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公开(公告)号：US20150177493A1
公开(公告)日：2015-06-25
申请号：US14579008
申请日：2014-12-22
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/62 , G02B13/0015 , G02B13/002 , G02B13/04 , G02B13/18 , G02B15/177 , G02B27/0018 , G02B27/0025 , H04N5/2254
Abstract: An imaging lens substantially consists of six lenses, composed of a negative first lens, a positive second lens, a negative third lens, a positive fourth lens, a positive fifth lens, and a negative sixth lens, disposed in order from the object side, and satisfies, when the distance between the first lens and the second lens is taken as Db12, the center thickness of the second lens is taken as D3, the focal length of the second lens is taken as f2, the focal length of the entire system is taken as f, the paraxial radius of curvature of the object side surface of the first lens is taken as R1f, and the paraxial radius of curvature of the image side surface of the first lens is taken as R1r, conditional expressions given below: 1.0
Abstract translation: 成像透镜基本上由从物体侧依次布置的六个透镜组成，该透镜由负的第一透镜，正的第二透镜，负的第三透镜，正的第四透镜，正的第五透镜和负的第六透镜组成， 并且当将第一透镜和第二透镜之间的距离作为Db12时，将第二透镜的中心厚度设为D3，将第二透镜的焦距设为f2，将整个系统的焦距设为 作为f，将第一透镜的物体侧表面的近轴曲率半径设为R1f，将第一透镜的像侧面的近轴曲率半径设为R1r，条件式如下：1.0 <（Db12 + D3）/ f（1）f2 / f <1.68（2）1.1 <（R1f + R1r）/（R1f-R1r）<2.2（3-3）
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公开(公告)号：US20140055871A1
公开(公告)日：2014-02-27
申请号：US14064923
申请日：2013-10-28
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI
IPC: G02B13/00
CPC classification number: G02B9/34 , G02B13/004 , G02B13/04 , G02B13/06
Abstract: An imaging lens includes negative first lens, negative second lens, third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (6) is satisfied: 0.75≦(R8−R9)/(R8+R9)≦1.0 (6), where R8: a curvature radius of an object-side surface of the fourth lens, and R9: a curvature radius of an image-side surface of the fourth lens.
Abstract translation: 成像透镜包括负第一透镜，负第二透镜，具有朝向物体侧的凸面的平凸形状的第三透镜或具有朝向物体侧的凸面的正弯月形，以及第四透镜 具有朝向图像侧的凸面或具有朝向图像侧的凸面的正弯月形的平凸形状，从物体侧依次排列。 此外，满足以下条件式（6）：0.75≤（R8-R9）/（R8 + R9）@ 1.0（6）其中R8是第四透镜的物体侧表面的曲率半径，R9 ：第四透镜的图像侧表面的曲率半径。
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公开(公告)号：US20140049842A1
公开(公告)日：2014-02-20
申请号：US14064839
申请日：2013-10-28
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI
IPC: G02B13/04
CPC classification number: G02B13/04 , G02B9/34 , G02B13/004 , G02B13/06
Abstract: An imaging lens consists of a negative first lens, a negative second lens, a third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (3) is satisfied: 1.0
Abstract translation: 成像透镜由负的第一透镜，负的第二透镜，具有朝向物体侧的凸面的平凸形状的第三透镜或具有朝向物体侧的凸面的正弯月形形成，以及 具有朝向图像侧的凸面的正平面凸部的第四透镜或具有朝向像侧的凸面的正弯月形状的第四透镜，其从物体侧依次配置。 此外，满足以下条件式（3）：1.0 <| f2 / f | <2.6（3）其中f：整个系统的焦距，f2：第二透镜的焦距。
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公开(公告)号：US20140043700A1
公开(公告)日：2014-02-13
申请号：US14060064
申请日：2013-10-22
Applicant: FUJIFILM Corporation
Inventor： Taro ASAMI
IPC: G02B13/04
CPC classification number: G02B13/04 , G02B9/34 , G02B13/004 , G02B13/06
Abstract: An imaging lens includes a negative first lens, a negative second lens, a third lens of a plano-convex shape having a convex surface directed toward an object side or of a positive meniscus shape having a convex surface directed toward the object side, and a fourth lens of a plano-convex shape having a convex surface directed toward an image side or of a positive meniscus shape having a convex surface directed toward the image side, which are arranged in this order from the object side. Further, the following conditional formula (4) is satisfied: 1.0
Abstract translation: 成像透镜包括负第一透镜，负第二透镜，具有朝向物体侧的凸表面的平凸形状的第三透镜或具有朝向物体侧的凸表面的正弯月形状，以及 具有朝向图像侧的凸面的正平面凸状的第四透镜或具有朝向像侧的凸面的正弯月形，从物侧开始依次配置。 此外，满足以下条件式（4）：1.0
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