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1. 发明授权

US10890746B2 Microscope objective lens 有权
公开(公告)号：US10890746B2
公开(公告)日：2021-01-12
申请号：US15939556
申请日：2018-03-29
申请人： NIKON CORPORATION
发明人： Miwako Yoshida
IPC分类号： G02B21/02 , G02B27/00 , G02B5/00
摘要： A microscope objective lens includes, in order from an object side, a first lens group having positive refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, and is configured such that the first lens group includes, on the most object side, a positive meniscus lens whose concave surface is directed to the object side, such that the second lens group includes a diffractive optical element having positive refractive power, and such that the diffractive optical element is arranged at a position closer to the image than a portion at which the diameter of a light flux passing through the first lens group and the second lens group is the larges.

2. 发明授权

US09958659B2 Microscope objective lens 有权
公开(公告)号：US09958659B2
公开(公告)日：2018-05-01
申请号：US15131694
申请日：2016-04-18
申请人： NIKON CORPORATION
发明人： Miwako Yoshida
IPC分类号： G02B21/02 , G02B27/00 , G02B5/00
CPC分类号： G02B21/02 , G02B5/005 , G02B27/0037
摘要： A microscope objective lens includes, in order from an object side, a first lens group having positive refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, and is configured such that the first lens group includes, on the most object side, a positive meniscus lens whose concave surface is directed to the object side, such that the second lens group includes a diffractive optical element having positive refractive power, and such that the diffractive optical element is arranged at a position closer to the image than a portion at which the diameter of a light flux passing through the first lens group and the second lens group is the largest.

3. 发明授权

US09341832B2 Microscope objective lens 有权
标题翻译：显微镜物镜
公开(公告)号：US09341832B2
公开(公告)日：2016-05-17
申请号：US13760681
申请日：2013-02-06
申请人： NIKON CORPORATION
发明人： Miwako Yoshida
IPC分类号： G02B21/02 , G02B27/00
CPC分类号： G02B21/02 , G02B5/005 , G02B27/0037
摘要： A microscope objective lens includes, in order from an object side, a first lens group having positive refractive power, a second lens group having positive refractive power, and a third lens group having negative refractive power, and is configured such that the first lens group includes, on the most object side, a positive meniscus lens whose concave surface is directed to the object side, such that the second lens group includes a diffractive optical element having positive refractive power, and such that the diffractive optical element is arranged at a position closer to the image than a portion at which the diameter of a light flux passing through the first lens group and the second lens group is the largest.
摘要翻译：显微镜物镜按照从物体侧起依次具有正屈光力的第一透镜组，具有正屈光力的第二透镜组和具有负屈光力的第三透镜组，并且被构造成使得第一透镜组在最物体侧包括凹面朝向物体侧的正弯月形透镜，使得第二透镜组包括具有正折光力的衍射光学元件，并且使得衍射光学元件布置在位置比通过第一透镜组和第二透镜组的光束的直径最大的部分更靠近图像。

4. 发明授权

US09001420B2 Microscope optical system and microscope system 有权
标题翻译：显微镜光学系统和显微镜系统
公开(公告)号：US09001420B2
公开(公告)日：2015-04-07
申请号：US13775486
申请日：2013-02-25
申请人： Nikon Corporation
发明人： Kaori Mukai , Miwako Yoshida
IPC分类号： G02B21/02 , G02B27/42
CPC分类号： G02B21/02 , G02B27/4205 , G02B27/4211
摘要： Provided is a microscope optical system in which the occurrence of flare due to unnecessary-order diffracted light exited from a diffractive optical element is suppressed. A microscope objective lens MS is configured by including an objective lens OL which has a diffractive optical element GD and converts light from an object into a substantially parallel light flux, and a second objective lens IL which forms an image of the object by focusing the substantially parallel light flux from the objective lens OL, and is configured such that, in case where an m-th order of diffracted light from the diffractive optical element GD is used for the image formation, the following expression is satisfied: |θ|>tan−1(0.06/D) when the light of a maximum NA emitted from the object located on an optical axis enters the diffractive optical element.
摘要翻译：提供了一种显微镜光学系统，其中抑制了由衍射光学元件退出的不必要的衍射光的发光。显微镜物镜MS通过包括具有衍射光学元件GD的物镜OL并将来自物体的光转换成基本上平行的光束的物镜构成，以及通过将基本上聚焦的物体聚焦形成物体的图像的第二物镜IL 来自物镜OL的平行光束，并且被配置为使得在来自衍射光学元件GD的衍射光的m级的次级用于图像形成的情况下，满足以下表达式：|＆het; 当从位于光轴上的物体发射的最大NA的光进入衍射光学元件时，tan -1（0.06 / D）。

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