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1. 发明授权

US10203488B2 Zoom lens, optical apparatus, and method for manufacturing zoom lens 有权
公开(公告)号：US10203488B2
公开(公告)日：2019-02-12
申请号：US15359227
申请日：2016-11-22
申请人： Nikon Corporation
发明人： Akihiko Obama , Norikazu Yokoi , Issei Tanaka
IPC分类号： G02B15/14 , G02B15/16 , G02B15/173 , G02B1/11 , G02B27/00
摘要： A zoom lens includes, in order from an object side along an optical axis, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, and a third lens group G3 having positive refractive power. Upon zooming from a wide-angle end state W to a telephoto end state T, a distance between the first lens group G1 and the second lens group G2 increases, and a distance between the second lens group G2 and the third lens group G3 decreases. Given conditions are satisfied. Accordingly, a zoom lens having high optical performance with suppressing variations in aberrations, an optical apparatus equipped therewith, and a method for manufacturing the zoom lens are provided.

2. 发明授权

US10168512B2 Variable magnification optical system, optical device, and production method for variable magnification optical system 有权
公开(公告)号：US10168512B2
公开(公告)日：2019-01-01
申请号：US14700493
申请日：2015-04-30
申请人： Nikon Corporation
发明人： Akihiko Obama , Tomoyuki Sashima
IPC分类号： G02B15/14
摘要： Composing, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; and a third lens group having positive refractive power; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group and a distance between the third lens group and an image plane being varied; on the most image side, a fixed lens group being fixed in a position upon zooming from the wide-angle end state to the telephoto end state; and the third lens group being moved in the direction of the optical axis upon focusing from an infinite distance object to a near distance object, thereby providing a small-size variable magnification optical system having a high zoom ratio and an excellent optical performance upon focusing from an infinite distance object to a near distance object, an optical apparatus, and a method for manufacturing the variable magnification optical system.

3. 发明申请

US20150247995A1 VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL DEVICE, AND PRODUCTION METHOD FOR VARIABLE MAGNIFICATION OPTICAL SYSTEM 有权
标题翻译：可变放大光学系统，光学器件和可变放大光学系统的生产方法
公开(公告)号：US20150247995A1
公开(公告)日：2015-09-03
申请号：US14700398
申请日：2015-04-30
申请人： Nikon Corporation
发明人： Tomoyuki Sashima , Akihiko Obama
IPC分类号： G02B15/167 , G02B13/00 , G02B15/20
CPC分类号： G02B15/167 , G02B13/0045 , G02B13/006 , G02B13/009 , G02B13/18 , G02B15/173 , G02B15/20 , G02B27/646
摘要： Composing, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having positive refractive power; and a fifth lens group having positive refractive power; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group, a distance between the third lens group and the fourth lens group and a distance between the fourth lens group and the fifth lens group being varied; and the given conditional expressions being satisfied; thereby providing a small-size variable magnification optical system having a high zoom ratio and an excellent optical performance.
摘要翻译：从物体的顺序构成：具有正折射光焦度的第一透镜组; 具有负屈光力的第二透镜组; 具有正折射力的第三透镜组; 具有正屈光力的第四透镜组; 和具有正折射光焦度的第五透镜组; 在从广角端状态变焦到望远端状态时，第一透镜组与第二透镜组之间的距离，第二透镜组与第三透镜组之间的距离，第三透镜组与第三透镜组之间的距离第四透镜组和第四透镜组与第五透镜组之间的距离是变化的; 并且给定的条件表达式被满足; 从而提供具有高变焦比和优异的光学性能的小尺寸可变倍率光学系统。

4. 发明授权

US10831007B2 Variable magnification optical system, optical device, and method for producing variable magnification optical system 有权
公开(公告)号：US10831007B2
公开(公告)日：2020-11-10
申请号：US15981523
申请日：2018-05-16
申请人： NIKON CORPORATION
发明人： Akihiko Obama , Masashi Yamashita
IPC分类号： G02B15/20 , G02B15/173
摘要： A variable magnification optical system has, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; an aperture stop; a third lens group having positive refractive power; and a rear lens group. Upon zooming from a wide-angle end state to a telephoto end state, at least the rear lens group is moved toward the object side, and distances between the lens groups are varied. Upon focusing from an infinitely distant object to a closely distant object, the third lens group is moved along the optical axis. At least a portion of the rear lens group constitutes a vibration reduction lens group having negative refractive power and moveable perpendicular to the optical axis. An optical apparatus and a method of manufacture are also provided.

5. 发明授权

US09983391B2 Variable power optical assembly, optical device, and variable power optical assembly fabrication method 有权
公开(公告)号：US09983391B2
公开(公告)日：2018-05-29
申请号：US14700631
申请日：2015-04-30
申请人： Nikon Corporation
发明人： Akihiko Obama , Tomoyuki Sashima
IPC分类号： G02B15/14
CPC分类号： G02B15/14 , G02B15/173 , G02B27/646 , Y10T29/4984
摘要： Comprising, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; a fourth lens group G4; a fifth lens group G5; and a sixth lens group G6; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group G1 and the second lens group G2, a distance between the second lens group G2 and the third lens group G3, a distance between the third lens group G3 and the fourth lens group G4, a distance between the fourth lens group G4 and the fifth lens group G5, and the distance between the fifth lens group G5 and a sixth lens group G6 being varied; and a predetermined conditional expression being satisfied, thereby providing a variable magnification optical system which has a high variable magnification ratio, is compact in size and has high optical performance, an optical apparatus, and a method for manufacturing the variable magnification optical system.

6. 发明申请

US20150234161A1 VARIABLE MAGNIFICATION OPTICAL SYSTEM, OPTICAL DEVICE, AND PRODUCTION METHOD FOR VARIABLE MAGNIFICATION OPTICAL SYSTEM 审中-公开
标题翻译：可变放大光学系统，光学器件和可变放大光学系统的生产方法
公开(公告)号：US20150234161A1
公开(公告)日：2015-08-20
申请号：US14700493
申请日：2015-04-30
申请人： Nikon Corporation
发明人： Akihiko Obama , Tomoyuki Sashima
IPC分类号： G02B15/14
CPC分类号： G02B15/14 , G02B15/173 , G02B27/646 , Y10T29/4984
摘要： Composing, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; and a third lens group having positive refractive power;upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group and a distance between the third lens group and an image plane being varied; on the most image side, a fixed lens group being fixed in a position upon zooming from the wide-angle end state to the telephoto end state; and the third lens group being moved in the direction of the optical axis upon focusing from an infinite distance object to a near distance object, thereby providing a small-size variable magnification optical system having a high zoom ratio and an excellent optical performance upon focusing from an infinite distance object to a near distance object, an optical apparatus, and a method for manufacturing the variable magnification optical system.
摘要翻译：从物体的顺序构成：具有正折射光焦度的第一透镜组; 具有负屈光力的第二透镜组; 和具有正折射光焦度的第三透镜组; 在从广角端状态变焦到望远端状态时，第一透镜组和第二透镜组之间的距离，第二透镜组和第三透镜组之间的距离以及第三透镜组与第三透镜组之间的距离，图像平面变化; 在大多数图像侧，固定透镜组被固定在从广角端状态变焦到远摄端状态的位置; 并且第三透镜组在从无限距离物体聚焦到近距离物体时沿着光轴的方向移动，从而提供具有高变焦比的小尺寸可变倍率光学系统和从聚焦时的优异的光学性能对近距离物体的无限距离物体，光学装置和用于制造可变倍率光学系统的方法。

7. 发明授权

US08934182B2 Lens system and optical apparatus 有权
标题翻译：镜头系统和光学仪器
公开(公告)号：US08934182B2
公开(公告)日：2015-01-13
申请号：US13941481
申请日：2013-07-13
申请人： Nikon Corporation
发明人： Akihiko Obama
IPC分类号： G02B9/04 , G02B15/14 , G02B9/06 , G02B9/10 , G02B13/26 , G02B3/00 , G02B13/18 , G02B27/00
CPC分类号： G02B15/14 , G02B3/0087 , G02B9/06 , G02B9/10 , G02B13/18 , G02B13/26 , G02B27/0037 , Y10T29/49826
摘要： A lens system comprising, in order from an object side: a first lens group G1; and a second lens group G2 having positive refractive power; the first lens group G1 including a sub-lens group GS11 having positive refractive power, and a sub-lens group GS12 having negative refractive power, the sub-lens group GS12 having negative refractive power including a meniscus lens having a convex surface facing the object side, given conditions being satisfied, thereby providing a lens system having high optical performance with excellently correcting various aberrations, and an optical apparatus equipped therewith.
摘要翻译：一种透镜系统，其从物体侧起依次包括：第一透镜组G1; 和具有正折射光焦度的第二透镜组G2; 包括具有正折光力的子透镜组GS11的第一透镜组G1和具有负屈光力的副透镜组GS12，具有负屈光力的副透镜组GS12包括具有面向物体的凸面的弯月形透镜在满足条件的情况下，由此提供具有高光学性能的透镜系统，并且具有良好地校正各种像差，以及配备有其的光学装置。

8. 发明授权

US11653096B2 Calculation device, interchangeable lens, camera body, and imaging device 有权
公开(公告)号：US11653096B2
公开(公告)日：2023-05-16
申请号：US17289089
申请日：2019-10-28
申请人： NIKON CORPORATION
发明人： Satoshi Kazahaya , Yuki Kinouchi , Akihiko Obama , Satoru Shibata
IPC分类号： H04N5/232
CPC分类号： H04N5/23287 , H04N5/23209 , H04N5/23258 , H04N5/232122
摘要： A calculation device calculating an amount of movement in an optical axis direction of a focusing lens which adjusts a focal position of an imaging optical system includes: a first input unit to which first information about a deviation between an imaging surface which captures an image by the imaging optical system and the focal position is repeatedly input; a second input unit to which second information about a shake of the imaging optical system in the optical axis direction is repeatedly input at intervals shorter than those of the first information; and a calculation unit which calculates the amount of movement on the basis of at least one of the first information and the second information, wherein the calculation unit calculates the amount of movement on the basis of the second information between an input of the first information and an input of the next first information.

9. 发明授权

US10948700B2 Variable magnification optical system, optical device, and method for producing variable magnification optical system 有权
公开(公告)号：US10948700B2
公开(公告)日：2021-03-16
申请号：US15988845
申请日：2018-05-24
申请人： NIKON CORPORATION
发明人： Akihiko Obama
IPC分类号： G02B9/34 , G02B15/16 , G02B15/173 , G02B27/00
摘要： Comprising, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; an aperture stop S; a third lens group G3 having positive refractive power; and a fourth lens group G4 having positive refractive power; upon zooming from a wide-angle end state to a telephoto end state, the distance between the first lens group G1 and the second lens group G2, the distance between the second lens group G2 and the aperture stop S, the distance between the aperture stop S and the third lens group G3, and the distance between the third lens group G3 and the fourth lens group G4 being varied, and the distance between the aperture stop S and the fourth lens group G4 being constant; and a predetermined conditional expression being satisfied, thereby providing a variable magnification optical system which is compact in size and has a high variable magnification ratio and high optical performance, an optical apparatus, and a method for manufacturing a variable magnification optical system.

10. 发明申请

US20190155005A1 ZOOM LENS, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING ZOOM LENS 审中-公开
公开(公告)号：US20190155005A1
公开(公告)日：2019-05-23
申请号：US16237601
申请日：2018-12-31
申请人： NIKON CORPORATION
发明人： Akihiko Obama , Norikazu Yokoi , Issei Tanaka
IPC分类号： G02B15/16 , G02B15/173 , G02B27/00 , G02B1/11
摘要： A zoom lens includes, in order from an object side along an optical axis, a first lens group G1 having positive refractive power, a second lens group G2 having negative refractive power, and a third lens group G3 having positive refractive power. Upon zooming from a wide-angle end state W to a telephoto end state T, a distance between the first lens group G1 and the second lens group G2 increases, and a distance between the second lens group G2 and the third lens group G3 decreases. Given conditions are satisfied. Accordingly, a zoom lens having high optical performance with suppressing variations in aberrations, an optical apparatus equipped therewith, and a method for manufacturing the zoom lens are provided.

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