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公开(公告)号：US20230143770A1
公开(公告)日：2023-05-11
申请号：US17917551
申请日：2021-01-12
Applicant: Nikon Corporation
Inventor： Mami MURATANI , Taku MATSUO , Satoshi MIWA , Yoko KOMATSUBARA , Akino KONDO
Abstract: An optical system used in an optical apparatus, such as a camera 1, is configured to include a plurality of lens groups such that at focusing the distances between the lens groups are varied, that a final lens group disposed closest to an image side of the lens groups includes at least one lens surface having a pole, and that all of the following conditional expressions are satisfied:
0.020-
公开(公告)号：US20220269056A1
公开(公告)日：2022-08-25
申请号：US17636872
申请日：2020-08-26
Applicant: Nikon Corporation
Inventor： Masashi YAMASHITA , Tomoki ITO , Tomonori KURIBAYASHI , Keigo KOIDA , Satoshi MIWA , Yoko KOMATSUBARA , Katsuya WATANABE , Azuna NONAKA , Ayumu MAKIDA
Abstract: This optical system (LS) has an aperture diaphragm (S) and a negative lens (L4) disposed closer to an object side than the aperture diaphragm (S) and satisfies the following conditional expression. −0.010
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公开(公告)号：US20210278643A1
公开(公告)日：2021-09-09
申请号：US17257569
申请日：2018-07-13
Applicant: Nikon Corporation
Inventor： Yoko KOMATSUBARA , Takeshi UMEDA
Abstract: A variable magnification optical system comprising, in order from an object side, a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power and a fourth lens group having positive refractive power; upon varying a magnification, a distance between the first lens group and the second lens group being varied, a distance between the second lens group and the third lens group being varied, and a distance between the third lens group and the fourth lens group being varied; the first lens group consisting of, in order from the object side, a negative lens and a positive lens; and the second lens group consisting of, in order from the object side, a 2a lens group having positive refractive power, a 2b lens group having positive refractive power, and a 2c lens group having negative refractive power, whereby the variable magnification optical system having high optical performance and being downsized, is provided.
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公开(公告)号：US20250085520A1
公开(公告)日：2025-03-13
申请号：US18961147
申请日：2024-11-26
Applicant: Nikon Corporation
Inventor： Masashi YAMASHITA , Tomoki ITO , Tomonori KURIBAYASHI , Keigo KOIDA , Satoshi MIWA , Yoko KOMATSUBARA , Katsuya WATANABE , Azuna NONAKA , Ayumu MAKIDA
Abstract: An optical system (LS) has a lens (L11) that satisfies the following conditional expressions. - 0.01
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Patent Agency Ranking
公开(公告)号：US20220269055A1
公开(公告)日：2022-08-25
申请号：US17636862
申请日：2020-08-26
Applicant: Nikon Corporation
Inventor： Masashi YAMASHITA , Tomoki ITO , Tomonori KURIBAYASHI , Keigo KOIDA , Satoshi MIWA , Yoko KOMATSUBARA , Katsuya WATANABE , Azuna NONAKA , Ayumu MAKIDA
Abstract: An optical system (LS) has a lens (L11) that satisfies the following conditional expressions. −0.010
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6.发明公开公开(公告)号：US20240264417A1
公开(公告)日：2024-08-08
申请号：US18626275
申请日：2024-04-03
Applicant: Nikon Corporation
Inventor： Yoko KOMATSUBARA , Takeshi UMEDA
CPC classification number: G02B15/144511 , G02B13/18 , G02B15/20 , G02B27/646 , G03B17/14
Abstract: A variable magnification optical system comprising, in order from an object side, a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power and a fourth lens group having positive refractive power; upon varying a magnification, a distance between the first lens group and the second lens group being varied, a distance between the second lens group and the third lens group being varied, and a distance between the third lens group and the fourth lens group being varied; the first lens group consisting of, in order from the object side, a negative lens and a positive lens; and the second lens group consisting of, in order from the object side, a 2a lens group having positive refractive power, a 2b lens group having positive refractive power, and a 2c lens group having negative refractive power, whereby the variable magnification optical system having high optical performance and being downsized, is provided.
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公开(公告)号：US20220334365A1
公开(公告)日：2022-10-20
申请号：US17636870
申请日：2020-08-26
Applicant: Nikon Corporation
Inventor： Masashi YAMASHITA , Tomoki ITO , Tomonori KURIBAYASHI , Keigo KOIDA , Satoshi MIWA , Yoko KOMATSUBARA , Katsuya WATANABE , Azuna NONAKA , Ayumu MAKIDA
IPC: G02B15/14
Abstract: An optical system (LS) has an aperture stop (S), and a positive lens (L4) disposed closer to the object side than the aperture stop (S). The positive lens (L4) satisfies the following conditional expressions. −0.010
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公开(公告)号：US20220291489A1
公开(公告)日：2022-09-15
申请号：US17636703
申请日：2020-08-26
Applicant: Nikon Corporation
Inventor： Masashi YAMASHITA , Tomoki ITO , Tomonori KURIBAYASHI , Keigo KOIDA , Satoshi MIWA , Yoko KOMATSUBARA , Katsuya WATANABE , Azuna NONAKA , Ayumu MAKIDA
Abstract: An optical system (LS) has an aperture stop (S), and a negative lens (L73) disposed closer to the image side than the aperture stop (S) and satisfying the following conditional expressions. −0.010
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公开(公告)号：US20220244502A1
公开(公告)日：2022-08-04
申请号：US17594390
申请日：2020-03-18
Applicant: Nikon Corporation
Inventor： Yoko KOMATSUBARA , Toshinori TAKE , Masashi YAMASHITA , Satoshi MIWA
Abstract: An optical system and an optical apparatus that have favorable imaging performance and a method for manufacturing the optical system are provided.
An optical system OL includes, sequentially from an object side, a front group G1 having positive refractive power and a focusing group G2 that performs focusing by moving in an optical axis direction, the front group G1 includes, sequentially from the object side, a first lens L11, a second lens L12, and a third lens L13, and the optical system OL satisfies a condition expressed by an expression below, 0.10
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