公开(公告)号：US09535240B2

公开(公告)日：2017-01-03

申请号：US14291155

申请日：2014-05-30

申请人： Nikon Corporation

发明人： Yoshikazu Hirayama ,  Miho Matsumoto

IPC分类号： G02B15/177 ,  G02B15/15 ,  G02B13/04 ,  G02B13/18 ,  G02B27/42

CPC分类号： G02B15/177 ,  G02B13/04 ,  G02B13/18 ,  G02B15/15 ,  G02B27/4211

摘要： Provided is a zoom optical system which includes, in order from an object, a first lens group having negative refractive power and other lens groups, and in which an interval between each lens group changes upon zooming, wherein the first lens group includes a first negative lens which is disposed closest to the object and has a diffractive optical element on an image side lens surface, and a positive lens disposed closer to the image than the first negative lens, and the glass material used for the positive lens satisfies the following conditions expressions: ν1p≦35 and Δ(θg, F)≧0.007, where ν1p denotes an Abbe number, based on the d-line, of the glass material used for the positive lens of the first lens group, and Δ(θg, F) denotes a deviation of the partial dispersion ratio of the glass material, which is used for the positive lens, from a standard line that connects a glass type A and a glass type B in a graph of which abscissa is an Abbe number νd based on the d-line, and the ordinate is the partial dispersion ratio (θg, F)=(ng−nF)/(nF−nC), with the Abbe number νd and the partial dispersion ratio (θg, F) of the glass type A and the glass type B being as follows: Glass type A: νd=60.49, (θg, F)=0.5436; glass type B: νd=36.26, (θg, F)=0.5828.

摘要翻译： 本发明提供一种变焦光学系统，其从物体起依次具有负折射力的第一透镜组和其他透镜组，并且其中每个透镜组之间的间隔在变焦时发生变化，其中第一透镜组包括第一负像 透镜，其最靠近物体设置，并且在像侧透镜表面上具有衍射光学元件，以及与第一负透镜相比更靠近图像设置的正透镜，并且用于正透镜的玻璃材料满足以下条件表达式 ：ν1p≤35且Δ（θg，F）≥0.007，其中ν1p表示用于第一透镜组的正透镜的玻璃材料的基于d线的阿贝数，Δ（θg，F） 表示用于正透镜的玻璃材料的部分色散比率，以横坐标为阿贝数νd为基础的曲线图，连接玻璃A和玻璃B的标准线的偏差 d线，a 纵坐标是玻璃类型A和玻璃类型的阿贝数vd和部分色散比（θg，F）的部分色散比（θg，F）=（ng-nF）/（nF-nC） B如下：玻璃类型A：νd= 60.49，（θg，F）= 0.5436; 玻璃B：νd= 36.26，（θg，F）= 0.5828。

公开(公告)号：US20140268363A1

公开(公告)日：2014-09-18

申请号：US14291155

申请日：2014-05-30

申请人： Nikon Corporation

发明人： Yoshikazu Hirayama ,  Miho Matsumoto

IPC分类号： G02B13/04

CPC分类号： G02B15/177 ,  G02B13/04 ,  G02B13/18 ,  G02B15/15 ,  G02B27/4211

摘要： Provided is a zoom optical system which includes, in order from an object, a first lens group having negative refractive power and other lens groups, and in which an interval between each lens group changes upon zooming, wherein the first lens group includes a first negative lens which is disposed closest to the object and has a diffractive optical element on an image side lens surface, and a positive lens disposed closer to the image than the first negative lens, and the glass material used for the positive lens satisfies the following conditions expressions: ν1p≦35 and Δ(θg, F)≧0.007, where ν1p denotes an Abbe number, based on the d-line, of the glass material used for the positive lens of the first lens group, and Δ(θg, F) denotes a deviation of the partial dispersion ratio of the glass material, which is used for the positive lens, from a standard line that connects a glass type A and a glass type B in a graph of which abscissa is an Abbe number νd based on the d-line, and the ordinate is the partial dispersion ratio (θg, F)=(ng−nF)/(nF−nC), with the Abbe number νd and the partial dispersion ratio (θg, F) of the glass type A and the glass type B being as follows: Glass type A: νd=60.49, (θg, F)=0.5436; glass type B: νd=36.26, (θg, F)=0.5828.

摘要翻译： 本发明提供一种变焦光学系统，其从物体起依次具有负折射力的第一透镜组和其他透镜组，并且其中每个透镜组之间的间隔在变焦时发生变化，其中第一透镜组包括第一负像 透镜，其最靠近物体设置，并且在像侧透镜表面上具有衍射光学元件，以及与第一负透镜相比更靠近图像设置的正透镜，并且用于正透镜的玻璃材料满足以下条件表达式 ：＆ngr; 1p＆nlE; 35和＆Dgr;（＆thetas; g，F）≥0.007，其中＆ngr; 1p表示基于用于第一透镜组的正透镜的玻璃材料的d线的阿贝数， 和＆Dgr;（＆Thetas; g，F）表示用于正透镜的玻璃材料的部分色散比从连接玻璃A和玻璃B的标准线的偏差， 哪个横坐标是阿贝数 基于d线，纵坐标是部分色散比（＆Thetas; g，F）=（ng-nF）/（nF-nC），阿贝数＆ngr; d和部分色散比 玻璃类型A的玻璃类型A（＆amp; G，F）和玻璃类型B如下：玻璃类型A：d = 60.49，（＆amp; t; g，F）= 0.5436; 玻璃类型B：＆ngr; d = 36.26，（＆thetas; g，F）= 0.5828。

公开(公告)号：US09395525B2

公开(公告)日：2016-07-19

申请号：US14144443

申请日：2013-12-30

申请人： Nikon Corporation

发明人： Miho Matsumoto ,  Yoshikazu Hirayama ,  Kinya Kato ,  Yoshikazu Sugiyama

IPC分类号： G02B17/08

CPC分类号： G02B17/0804 ,  G02B17/0816

摘要： A catadioptric imaging lens includes: a first reflecting mirror; a second reflecting mirror; and a lens group. A reflecting surface of the first reflecting mirror is a rotationally asymmetrical aspherical, with concavity on the object side within the reference and the first orthogonal plane. A reflecting surface of the second reflecting mirror is a rotationally asymmetrical aspherical, with convexity toward the first reflecting mirror within the reference and within the second orthogonal plane. A surface in the lens group closest to the second reflecting mirror is a rotationally asymmetrical aspherical, with concavity toward the second reflecting mirror within the reference plane and convexity toward the second reflecting mirror within the third orthogonal plane.

摘要翻译： 反射折射成像透镜包括：第一反射镜; 第二反射镜; 和镜头组。 第一反射镜的反射面是旋转非对称的非球面，在基准面和第一正交平面内的物体侧具有凹面。 第二反射镜的反射表面是旋转非对称非球面，在参考内部和第二正交平面内具有朝向第一反射镜的凸面。 最靠近第二反射镜的透镜组中的表面是旋转非对称非球面，在参考平面内具有朝向第二反射镜的凹面，并且在第三正交平面内具有朝向第二反射镜的凸面。

公开(公告)号：US20140211330A1

公开(公告)日：2014-07-31

申请号：US14144443

申请日：2013-12-30

申请人： Nikon Corporation

发明人： Miho Matsumoto ,  Yoshikazu Hirayama ,  Kinya Kato ,  Yoshikazu Sugiyama

IPC分类号： G02B17/08

CPC分类号： G02B17/0804 ,  G02B17/0816

摘要： A catadioptric imaging lens includes: a first reflecting mirror; a second reflecting mirror; and a lens group. A reflecting surface of the first reflecting mirror is a rotationally asymmetrical aspherical, with concavity on the object side within the reference and the first orthogonal plane. A reflecting surface of the second reflecting mirror is a rotationally asymmetrical aspherical, with convexity toward the first reflecting mirror within the reference and within the second orthogonal plane. A surface in the lens group closest to the second reflecting mirror is a rotationally asymmetrical aspherical, with concavity toward the second reflecting mirror within the reference plane and convexity toward the second reflecting mirror within the third orthogonal plane.

摘要翻译： 反射折射成像透镜包括：第一反射镜; 第二反射镜; 和镜头组。 第一反射镜的反射面是旋转非对称的非球面，在基准面和第一正交平面内的物体侧具有凹面。 第二反射镜的反射表面是旋转非对称非球面，在参考内部和第二正交平面内具有朝向第一反射镜的凸面。 最靠近第二反射镜的透镜组中的表面是旋转非对称非球面，在参考平面内具有朝向第二反射镜的凹面，并且在第三正交平面内具有朝向第二反射镜的凸面。