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1. 发明授权

US11347035B2 Variable magnification optical system, optical apparatus, and method for producing variable magnification optical system 有权
公开(公告)号：US11347035B2
公开(公告)日：2022-05-31
申请号：US16496420
申请日：2017-04-05
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/20 , G02B13/02 , G02B13/18
摘要： A variable magnification optical system comprising, in order from an object side, a first lens group having negative refractive power, a first intermediate lens group having positive refractive power, a second intermediate lens group having negative refractive power and a rear lens group; upon varying a magnification from a wide angle end state to a telephoto end state, a distance between the first lens group and the first intermediate lens group being varied, a distance between the first intermediate lens group and the second intermediate lens group being varied, and a distance between the second intermediate lens group and the rear lens group being varied; the rear lens group comprising at least one focusing lens group which is moved upon carrying out focusing from an infinitely distant object to a closely distant object; and predetermined conditional expressions being satisfied, thereby the focusing lens group(s) being reduced in weight.

2. 发明授权

US11175485B2 Zoom optical system, optical apparatus, imaging apparatus and method for manufacturing the zoom optical system 有权
公开(公告)号：US11175485B2
公开(公告)日：2021-11-16
申请号：US16345185
申请日：2016-11-21
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/14 , G02B15/173 , G02B15/20 , G02B9/60 , G02B27/64 , G02B9/62 , G02B9/64
摘要： A zoom optical system comprises, in order from an object: a front lens group (GFS) having a positive refractive power; an M1 lens group (GM1) having a negative refractive power; an M2 lens group (GM2) having a positive refractive power; an RN lens group (GRN) having a negative refractive power; and a subsequent lens group (GRS). Upon zooming, the distance between the front lens group (GFS) and the M1 lens group (GM1) changes, the distance between the M1 lens group (GM1) and the M2 lens group (GM2) changes, and the distance between the M2 lens group (GM2) and the RN lens group (GRN) changes. Upon focusing from an infinite distant object to a short distant object, the RN lens group (GRN) moves.

3. 发明授权

US10725272B2 Variable magnification optical system, optical apparatus, imaging apparatus and method for manufacturing variable magnification optical system 有权
公开(公告)号：US10725272B2
公开(公告)日：2020-07-28
申请号：US15759829
申请日：2016-09-16
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/14 , G02B15/173 , G02B27/64 , G02B15/20
摘要： Comprising a positive first lens group G1 disposed at a most object side, a negative intermediate group G2 disposed at an image side of the first lens group G1, a positive focusing group G3 disposed at an image side of the intermediate group G2, the focusing group G3 being moved upon focusing, and a positive image side group G4 disposed at an image side of the focusing group G3; upon varying magnification, a distance between the first lens group G1 and the intermediate group G2, a distance between the intermediate group G2 and the focusing group G3 and a distance between the focusing group G3 and the image side group G4 being varied; and the image side group G4 comprising, in order from an object side, a positive A group G4A, a negative B group G4B satisfying a predetermined conditional expression with respect to the A group G4A, and a C group G4C, whereby a variable magnification optical system having excellent optical performance and a focusing lens group reduced in weight in order to attain high speed focusing operation, and others are provided.

4. 发明授权

US11635603B2 Variable power optical system, optical apparatus and manufacturing method for variable power optical system 有权
公开(公告)号：US11635603B2
公开(公告)日：2023-04-25
申请号：US16995196
申请日：2020-08-17
申请人： Nikon Corporation
发明人： Atsushi Shibayama , Kosuke Machida
IPC分类号： G02B15/14 , G02B15/22 , G02B15/173 , G02B13/00
摘要： Provided is a variable power optical system (ZL) used for an optical apparatus such as a camera (1). The variable power optical system (ZL) includes, in order from an object: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having negative refractive power; a fourth lens group having positive refractive power; and a fifth lens group. Upon zooming from a wide-angle end state to a telephoto end state, a distance between each of the lens groups changes, and upon focusing from an object at infinity to an object at a close distance, the third lens group moves in the optical axis direction.

5. 发明授权

US11294157B2 Zoom optical system, optical apparatus and imaging apparatus using the zoom optical system, and method for manufacturing the zoom optical system 有权
公开(公告)号：US11294157B2
公开(公告)日：2022-04-05
申请号：US16345123
申请日：2016-11-21
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/173 , G02B15/14 , G02B9/14 , G02B15/20 , G02B27/64
摘要： A zoom optical system (ZL) comprises, in order from an object: a first lens group (G1) having a positive refractive power; a second lens group (G2) having a negative refractive power; a third lens group (G3) having a positive refractive power; and a subsequent lens group (GR), wherein upon zooming, a distance between the first lens group (G1) and the second lens group (G2) changes, a distance between the second lens group (G2) and the third lens group (G3) changes, and a distance between the third lens group (G3) and the subsequent lens group (GR) changes, the subsequent lens group (GR) comprises a focusing lens group that moves upon focusing, and the second lens group (G2) comprises a partial group that satisfies following conditional expressions, 1.40

6. 发明授权

US11079577B2 Variable magnification optical system, optical apparatus, and method for producing variable magnification optical system 有权
公开(公告)号：US11079577B2
公开(公告)日：2021-08-03
申请号：US16496429
申请日：2017-04-05
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B13/00 , G02B15/20 , G02B13/02 , G02B13/06 , G02B13/18 , G02B5/00
摘要： A variable magnification optical system comprising, in order from an object side, a first lens group having negative refractive power, a first intermediate lens group having positive refractive power, a second intermediate lens group having negative refractive power and a rear lens group; upon varying a magnification from a wide angle end state to a telephoto end state, a distance between the first lens group and the first intermediate lens group being varied, a distance between the first intermediate lens group and the second intermediate lens group being varied, and a distance between the second intermediate lens group and the rear lens group being varied; the rear lens group comprising at least one focusing lens group which is moved upon carrying out focusing from an infinitely distant object to a closely distant object and at least one lens component at an image side of the most image side focusing lens group in the focusing lens groups; and predetermined conditional expressions being satisfied, thereby the focusing lens group(s) being reduced in weight.

7. 发明授权

US11061210B2 Variable magnification optical system, optical device, and manufacturing method for variable magnification optical system 有权
公开(公告)号：US11061210B2
公开(公告)日：2021-07-13
申请号：US15576827
申请日：2016-05-26
申请人： NIKON CORPORATION
发明人： Takeru Uehara , Takeshi Suzuki , Kosuke Machida
IPC分类号： G02B15/177 , G02B13/18 , G02B27/64 , G02B13/04 , G02B15/14 , G02B15/20
摘要： A variable magnification optical system comprising, in order from an object side, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having negative refractive power and a rear group comprising at least one lens group and having positive refractive power as a whole; upon varying magnification, air intervals between the neighboring lens groups being varied; and said first lens group G1 consisting of lens component(s) having negative refractive power, thereby a variable magnification optical system having excellent optical performance, an optical apparatus and a method for manufacturing the variable magnification optical system, being provided.

8. 发明授权

US10698189B2 Variable magnification optical system, optical apparatus, and variable magnification optical system manufacturing method 有权
公开(公告)号：US10698189B2
公开(公告)日：2020-06-30
申请号：US15539055
申请日：2015-12-25
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/173 , G02B15/20 , G02B13/18 , G02B15/177 , G02B27/64
摘要： A variable magnification optical system includes: a first lens group having a positive refractive power and arranged closest to an object; a negative lens group having a negative refractive power and arranged closer to an image than the first lens group; a positive lens group which has a positive refractive power, which includes at least one lens that moves integrally with an aperture stop, and which is arranged closer to the image than the negative lens group; and a focusing group arranged between the negative lens group and the positive lens group, wherein when varying magnification, the first lens group moves with respect to an image plane, the distance between the first lens group and the negative lens group is changed, and the distance between the negative lens group and the positive lens group is changed, wherein when focusing, the distance between the focusing group and a lens arranged at a position to face an object-side of the focusing group is changed, and the distance between the focusing group and a lens arranged at a position to face an image-side of the focusing group is changed, wherein the focusing group is constituted by a single lens component, wherein the positive lens group is constituted by a front group having a positive refractive power and a rear group having a negative refractive power, and the distance between the front group and the rear group is the largest air distance among air distances in the positive lens group, and wherein the rear group is constituted by two lens components.

9. 发明授权

US10338357B2 Variable-power optical system, optical device, and method for manufacturing variable-power optical system 有权
公开(公告)号：US10338357B2
公开(公告)日：2019-07-02
申请号：US15418770
申请日：2017-01-29
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/14 , G02B13/18 , G02B15/16 , G02B15/20 , G02B13/02 , G02B15/22 , G02B27/64 , H04N5/232 , G02B15/177 , G02B13/04 , G02B13/00 , H04N5/225 , G02B27/00 , G02B15/15 , G02B15/173 , G02B15/167 , G02B5/00
摘要： Composing, in order from an object side along the optical axis, a first lens group having positive refractive power, and at least one lens group; upon varying magnification, an interval between the first lens group and a lens group at an image side of the first lens group and adjacent thereto being varied, said first lens group comprising a focusing lens group which is moved along the optical axis for focusing and a vibration reducing lens group that is movable to include a component in a direction perpendicular to the optical axis, thereby providing a an excellent optical performance upon focusing.

10. 发明授权

US11598940B2 Variable magnification optical system, optical apparatus, and method for producing variable magnification optical system 有权
公开(公告)号：US11598940B2
公开(公告)日：2023-03-07
申请号：US16764869
申请日：2017-11-20
申请人： Nikon Corporation
发明人： Kosuke Machida
IPC分类号： G02B15/14 , G02B13/02 , G02B15/20 , G02B13/06 , G02B13/18
摘要： A variable magnification optical system comprising, in order from an object side, a first lens group and a plurality of lens groups; upon varying a magnification, a distance between the first lens group and the plurality of lens groups being varied, and distances between respective lens groups in the plurality of lens groups being varied; the plurality of lens groups comprising an object side focusing lens group which is moved upon carrying out focusing and at least one image side focusing lens group disposed in a more image side than the object side focusing lens group and moved with a trajectory differing from that of the object side focusing lens group, upon carrying out the focusing; and
the predetermined conditional expressions being satisfied, whereby variations in aberrations upon varying magnification from the wide angle end state to the telephoto end state as well as variations in aberrations upon carrying out focusing from an infinite distance object to a close distance object can be suppressed superbly.

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