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1.发明申请公开(公告)号：US20250013023A1
公开(公告)日：2025-01-09
申请号：US18886111
申请日：2024-09-16
Applicant: Nikon Corporation
Inventor： Takeru UEHARA
Abstract: A zoom optical system consists of a first lens group having negative refractive power, a second lens group having positive refractive power, and a rear lens group which are disposed in order from an object. The rear lens group comprises a last lens group and an F lens group in order from a side closest to an image. Lens groups forming the first lens group, the second lens group, and the rear lens group are configured in such a manner that, upon zooming, the respective lens groups move and a distance between the lens groups adjacent to each other changes. At least a part of the F lens group is configured to move upon focusing. Further, the following conditional expression is satisfied. −0.220
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公开(公告)号：US20240427128A1
公开(公告)日：2024-12-26
申请号：US18806418
申请日：2024-08-15
Applicant: Nikon Corporation
Inventor： Kosuke MACHIDA
IPC: G02B15/173 , G02B9/14 , G02B15/14 , G02B15/20 , G02B27/64
Abstract: 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
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3.发明授权公开(公告)号：US12140739B2
公开(公告)日：2024-11-12
申请号：US17595849
申请日：2020-05-27
Applicant: Nikon Corporation
Inventor： Kosuke Machida
Abstract: A variable power optical system (ZL (1)) includes a plurality of lens groups (G1-G7). During variable magnification, an interval between adjacent lens groups changes. The plurality of lens groups include: a first focusing lens group (G5) that moves during focusing; and a second focusing lens group (G6) that is disposed more toward an imaging surface side than the first focusing lens group and that moves along a different trajectory than the first focusing lens group during focusing. The first focusing lens group and the second focusing lens group both have a negative refractive power. The plurality of lens groups satisfy the following condition: 0.40
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公开(公告)号：US12092803B2
公开(公告)日：2024-09-17
申请号：US18221484
申请日：2023-07-13
Applicant: Nikon Corporation
Inventor： Kosuke Machida
IPC: G02B15/173 , G02B9/14 , G02B15/14 , G02B15/20 , G02B27/64
CPC classification number: G02B15/173 , G02B9/14 , G02B15/143105 , G02B15/20 , G02B27/646
Abstract: 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
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5.发明公开公开(公告)号：US20240151952A1
公开(公告)日：2024-05-09
申请号：US18412740
申请日：2024-01-15
Applicant: Nikon Corporation
Inventor： Akihiko OBAMA , Masashi YAMASHITA
CPC classification number: G02B15/144113 , G02B15/20
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11914125B2
公开(公告)日：2024-02-27
申请号：US17067898
申请日：2020-10-12
Applicant: Nikon Corporation
Inventor： Atsushi Suzuki , Kenji Ishida , Saburo Masugi
CPC classification number: G02B15/16 , G02B5/208 , G02B15/1461 , G02B15/145105 , G02B15/145117 , G02B15/145121 , G02B15/145129 , G02B15/20
Abstract: 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) having negative refractive power, and a fifth lens group (G5) having positive refractive power are arranged in order from an object, and zooming is performed by changing distances between each lens group, and the first lens group (G1) is composed of three or more lenses, the fourth lens group (G4) is composed of two or less lenses, and the fifth lens group (G5) is composed of two or less lenses and moves to an image surface side upon zooming from a wide angle end state to a telephoto end state, and the following conditional expression (1) is satisfied.
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公开(公告)号：US20240053593A1
公开(公告)日：2024-02-15
申请号：US18383487
申请日：2023-10-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kohei KIMURA
IPC: G02B15/14 , G02B15/20 , G02B15/177
CPC classification number: G02B15/144515 , G02B15/144507 , G02B15/20 , G02B15/177 , G02B15/1465
Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and three or more lens units. A distance between adjacent lens units varies during zooming. A predetermined condition is satisfied.
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公开(公告)号：US11841486B2
公开(公告)日：2023-12-12
申请号：US17155283
申请日：2021-01-22
Applicant: FUJIFILM Corporation
Inventor： Daiki Kawamura , Michio Cho
CPC classification number: G02B15/1421 , G02B15/20 , G02B27/0025
Abstract: An imaging lens includes a positive first lens group and a second lens group, which are continuous in order from the position closest to the object side, as lens groups. During focusing, the distance between the first lens group and the second lens group changes. A stop is disposed closer to the image side than a lens which is second from the object side. A combined refractive power of all lenses closer to the object side than the stop is positive. The imaging lens includes an LA positive lens and an LB positive lens that satisfy a predetermined conditional expression at a position closer to the object side than the stop. An Abbe number of the LB positive lens is the maximum among Abbe numbers of all positive lenses closer to the object side than the stop.
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公开(公告)号：US11828923B2
公开(公告)日：2023-11-28
申请号：US17166677
申请日：2021-02-03
Applicant: FUJIFILM Corporation
Inventor： Masato Kondo , Tetsuya Ori , Michio Cho
CPC classification number: G02B15/143 , G02B15/20 , G02B27/0025
Abstract: An imaging lens consists of, in order from the object side, a first lens group, a stop, a positive second lens group, and a third lens group. During focusing, at least the second lens group moves and the third lens group does not move. The second lens group includes at least two negative lenses. The third lens group consists of one negative lens and one positive lens.
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公开(公告)号：US20230358924A1
公开(公告)日：2023-11-09
申请号：US18305410
申请日：2023-04-24
Applicant: Nextlens Switzerland AG
Inventor： Manuel ASCHWANDEN
CPC classification number: G02B3/14 , G02B15/142 , G02B7/10 , G02B15/20 , H04N23/55 , G03B2205/0069 , G03B2205/0076
Abstract: The invention relates to an optical zoom device (1) Optical zoom device (1), comprising a first lens assembly (2), and a second lens assembly (3) following the first lens assembly (2) in the direction of an optical axis (A) of the optical zoom device (1) so that light (L) can pass through the first lens assembly (2) and thereafter through the second lens assembly when travelling along the optical axis (A), wherein said lens assemblies each comprise a focus-adjustable lens (31, 32) as well as an electropermanent magnet (107, 207) or a shape memory alloy (120, 220) for actuating the respective lens (31, 32).
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