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公开(公告)号:US3420602A
公开(公告)日:1969-01-07
申请号:US3420602D
申请日:1965-03-22
申请人: VOIGTLAENDER AG
发明人: EGGERT JOACHIM , SCHUHMANN PAUL
CPC分类号: G02B9/12
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公开(公告)号:US20230408804A1
公开(公告)日:2023-12-21
申请号:US18240658
申请日:2023-08-31
申请人: NIKON CORPORATION
发明人: Katsuya WATANABE , Azuna NONAKA
摘要: An objective lens (OL) comprises, disposed in order from an object: a positive lens (L11); a negative meniscus lens (L12) cemented to the positive lens (L11) and having a concave surface facing the object; and a positive meniscus lens (L13) having a concave surface facing the object; wherein the objective lens satisfies following conditional expressions 2.03≤n1m≤2.30 and 20≤ν1m, where, n1m: a refractive index of the negative meniscus lens (L12) with respect to a d-line, and ν1m: an Abbe number of the negative meniscus lens (L12).
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公开(公告)号:US11698510B2
公开(公告)日:2023-07-11
申请号:US16800468
申请日:2020-02-25
发明人: Seunghoon Han , Amir Arbabi , Andrei Faraon , Sungwoo Hwang , Jangwoo You , Byounglyong Choi , Hyeonsoo Park
IPC分类号: G02B9/12 , G02B9/14 , G02B13/00 , G02B13/18 , G02B9/10 , G02B5/18 , G02B3/08 , G02B1/00 , G02B27/00 , H04N23/55
CPC分类号: G02B9/12 , G02B1/002 , G02B3/08 , G02B5/1876 , G02B9/10 , G02B9/14 , G02B13/003 , G02B13/0035 , G02B13/0055 , G02B13/18 , G02B27/0025 , H04N23/55 , H05K999/99 , G02B2207/101
摘要: Provided an imaging apparatus including a first optical device, a second optical device disposed such that light transmitted through the first optical device is incident on the second optical device, and a third optical device disposed such that light transmitted through the second optical device is incident on the third optical device, wherein at least one of the first optical device, the second optical device, and the third optical device includes a plurality of nanostructures, and heights of at least two nanostructures of the plurality of nanostructures are different from each other.
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公开(公告)号:US11366292B2
公开(公告)日:2022-06-21
申请号:US17134507
申请日:2020-12-28
发明人: Yunjie Liu
摘要: A camera optical lens is provided, including from an object side to an image side: a first lens having positive refractive power; a second lens having negative refractive power; and a third lens having positive refractive power, wherein the camera optical lens satisfies following conditions: 0.75≤f1/f≤0.95; 1.20≤f3/f≤2.00; 0≤(R1+R2)/(R1−R2)≤0.80; −3.50≤(R3+R4)/(R3−R4)≤−1.50; −8.00≤(R5+R6)/(R5−R6)≤−2.50; and 1.50≤d5/d4≤4.00. The above camera optical lens can meet design requirements for large aperture, wide angle and ultra-thinness while maintaining good imaging performance.
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公开(公告)号:US20220003965A1
公开(公告)日:2022-01-06
申请号:US17121035
申请日:2020-12-14
发明人: YEONG-MING CHANG , CHIEN-HSUN LAI , YAO-WEI LIU
摘要: The invention discloses a three-piece optical lens for capturing image and a three-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; and a third lens with refractive power; and at least one of the image-side surface and object-side surface of each of the three lens elements are aspheric. The optical lens can increase aperture value and improve the imaging quality for use in compact cameras.
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公开(公告)号:US11204482B1
公开(公告)日:2021-12-21
申请号:US17237367
申请日:2021-04-22
发明人: Cheng Jiang , Jun She , Jixue Nan
摘要: An optical lens is provided with three lens pieces. The optical lens includes a diaphragm, a first lens piece having positive focal power, a second lens piece having negative focal power and a third lens piece having positive focal power, arranged in sequence. The first lens piece has an S1 surface and an S2 surface. The second lens piece has an S3 surface and an S4 surface. The third lens piece has an S5 surface and an S6 surface. An S7 surface is provided on a side of the S6 surface away from the S5 surface. A lens frame is provided at the S6 surface or between the S6 and S7 surfaces. The calibers of the Si to S7 surfaces sequentially decrease. An equivalent focal length of the first lens piece is larger than that of the third lens piece. A numerical aperture of the lens is larger than 0.6.
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公开(公告)号:US20210048619A1
公开(公告)日:2021-02-18
申请号:US16991054
申请日:2020-08-12
摘要: Provided is a camera optical lens including, sequentially from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; and a third lens having a positive refractive power. The camera optical lens satisfies: −0.80≤f1/f≤1.10; 0.30≤d3/d5≤1.00; −20.00≤(R5+R6)/(R5−R6)≤−10.00; 5.00≤R2/f≤50.00; and −10.00≤(R3+R4)/(R3−R4)≤−4.00, where f and f2 denote focal lengths of the camera optical lens and the first lens, respectively; R2, R4 and R6 denote curvature radiuses of image side surfaces of the first, second and third lenses, respectively; R3 and R5 denote curvature radiuses of object side surfaces of the second and third lenses, respectively; d3 denotes an on-axis thickness of the second lens; and d5 denotes an on-axis thickness of the third lens. The camera optical lens can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses.
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公开(公告)号:US10558009B2
公开(公告)日:2020-02-11
申请号:US15680750
申请日:2017-08-18
发明人: Yeong-Ming Chang , Chien-Hsun Lai , Yao-Wei Liu
IPC分类号: G02B7/00 , G02B7/02 , G02B9/12 , G02B9/60 , G02B9/62 , G02B9/64 , G02B13/00 , G02B9/34 , G02B9/14
摘要: The invention discloses an at least two optical lenses for capturing image and an optical module for capturing image. The optical image capturing system comprises at least three pieces of optical lenses, an image plane, a first positioning element and a second positioning element. In certain conditions, the design of said optical image capturing system can achieve effects of simultaneously increasing input light, field of view, illuminance and improving the imagining quality in compact cameras.
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公开(公告)号:US10484615B2
公开(公告)日:2019-11-19
申请号:US15892647
申请日:2018-02-09
摘要: A camera head is provided that includes a first lens group, including at least one deformable lens with variable curvature, a second lens group moveable relative to the first lens group, and an image sensor for capturing a light beam received from an endoscope, wherein the first lens group is fixed relative to the image sensor and the aperture of the first lens group is smaller than the aperture of the second lens group. A method is also provided for capturing of an image utilizing a zoom system including a variable power first lens group and a movable second lens group.
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公开(公告)号:US10429612B2
公开(公告)日:2019-10-01
申请号:US15370300
申请日:2016-12-06
发明人: Chien-Hsun Lai , Nai-Yuan Tang , Yao-Wei Liu , Yeong-Ming Chang
IPC分类号: G02B3/02 , G02B23/24 , G02B9/00 , G02B13/00 , G02B5/00 , G02B5/20 , G02B9/12 , G02B9/14 , G02B27/00
摘要: The invention discloses a three-piece optical lens for capturing image and a three-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; and a third lens with refractive power; and at least one of the image-side surface and object-side surface of each of the three lens elements are aspheric. The optical lens can increase aperture value and improve the imaging quality for use in compact cameras.
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