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公开(公告)号：US12038560B2
公开(公告)日：2024-07-16
申请号：US17855818
申请日：2022-07-01
发明人： Hung-Chien Hsieh , Ou Zhou , Lanlan Zhang
CPC分类号： G02B13/004 , G02B9/56 , G02B15/1441 , G02B9/34
摘要： An optical imaging lens includes a first lens element, a second lens, an aperture stop, a third lens element and a fourth lens element from an object side to an image side in order along an optical axis, and each lens element has an object-side surface and an image-side surface. An optical axis of the image-side surface of the first lens element is convex and an optical axis of the image-side surface of the fourth lens element is concave. HFOV stands for the half field of view of the entire optical imaging lens and TTL is a distance from the object-side surface of the first lens element to an image plane along the optical axis to satisfy HFOV/TTL≤1.500°/mm.
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公开(公告)号：US20240219690A1
公开(公告)日：2024-07-04
申请号：US18601148
申请日：2024-03-11
发明人： Ho Sik YOO , Dong Shin YANG , Yong Joo JO , Sot Eum SEO
CPC分类号： G02B13/004 , G02B9/38 , G02B9/50 , G02B9/56 , G02B13/0065 , G02B13/02
摘要： An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3
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公开(公告)号：US11656434B2
公开(公告)日：2023-05-23
申请号：US17101187
申请日：2020-11-23
发明人： Ho Sik Yoo , Dong Shin Yang , Yong Joo Jo , Sot Eum Seo
CPC分类号： G02B13/004 , G02B9/38 , G02B9/50 , G02B9/56 , G02B13/0065 , G02B13/02
摘要： An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3
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公开(公告)号：US09753271B2
公开(公告)日：2017-09-05
申请号：US15062078
申请日：2016-03-05
申请人： Nikon Corporation
发明人： Issei Tanaka , Hiroki Harada , Taku Matsuo
IPC分类号： G02B25/00 , G02B23/14 , G02B27/00 , G02B13/18 , G03B13/08 , G02B1/11 , G02B9/12 , G02B1/115 , G03B13/06 , G02B9/56
CPC分类号： G02B25/001 , G02B1/11 , G02B1/115 , G02B9/12 , G02B9/56 , G02B13/18 , G02B23/14 , G02B27/0018 , G03B13/06 , G03B13/08
摘要： An eyepiece lens (EL) used for a viewfinder optical system (VF) for viewing, using the eyepiece lens (EL), an image formed by an objective lens (OL), an image displayed by a display member, or an object, wherein an antireflection coating (101) is disposed on at least one surface among the optical surfaces constituting the eyepiece lens (EL), and the antireflection coating (101) includes at least one layer (101g) formed by a wet process.
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公开(公告)号：US09739977B2
公开(公告)日：2017-08-22
申请号：US14991624
申请日：2016-01-08
发明人： Fengqing Sun
CPC分类号： G02B13/004 , G02B1/041 , G02B5/208 , G02B9/50 , G02B9/56
摘要： A lens assembly for portable devices comprises: an aperture stop, a plastic first lens element with positive refractive power having a convex object-side surface; a plastic second lens element with negative refractive power having a concave image-side surface and an object-side surface being concave in a peripheral region; a plastic third lens element with negative refractive power having a concave object-side surface and a convex image-side surface; a plastic fourth lens element with positive refractive power having an image-side surface being concave in a paraxial region and convex in a peripheral region; and an IR-cut filter (infrared-cut filter); wherein the RImin represents the minimum RI (relative illumination) of effective field and it satisfies the following relation: 0.36
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公开(公告)号：US5113288A
公开(公告)日：1992-05-12
申请号：US679252
申请日：1991-04-02
申请人： Koichi Ohshita
发明人： Koichi Ohshita
摘要： A behind stop wide angle lens system comprises a negative meniscus lens L.sub.1 having a convex surface directed to the object, a positive meniscus lens L.sub.2 having a convex surface directed to the object, a double-side-concave negative lens L.sub.3 having both surfaces concaved, a double-side-convex positive lens L.sub.4 having both surfaces convexed, and a stop S. These lenses are arranged in the mentioned order from the end adjacent the object. The lenses satisfying the following conditions (1) to (4):-2.8f
摘要翻译： 后方广角镜头系统包括具有朝向物体的凸表面的负弯月形透镜L1，具有指向物体的凸表面的正弯月形透镜L2，具有凹面的双侧凹面负透镜L3， 具有两个表面凸起的双面凸面正透镜L4和光阑S.这些透镜从邻近物体的端部以上述顺序排列。 满足以下条件（1）至（4）的透镜：-2.8f
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公开(公告)号：US20240255738A1
公开(公告)日：2024-08-01
申请号：US18126377
申请日：2023-03-24
发明人： Jian WANG , Jun WANG , Kuo-Chun HSIAO
CPC分类号： G02B13/0065 , G02B9/56 , G02B13/004 , G03B17/17
摘要： An optical lens assembly with a first optical axis and a second optical axis parallel to the first optical axis, includes a first element group located on an object side of the optical lens assembly; a second element group located on an image side of the optical lens assembly; and a light guide element disposed at the position where the first and second optical axes pass. The first and second element groups being located on the same side of the light guide element. The optical lens assembly has a long focal length, a compact size and a relatively higher illumination when satisfying a specific condition.
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公开(公告)号：US11960058B2
公开(公告)日：2024-04-16
申请号：US18299984
申请日：2023-04-13
发明人： Ho Sik Yoo , Dong Shin Yang , Yong Joo Jo , Sot Eum Seo
CPC分类号： G02B13/004 , G02B9/38 , G02B9/50 , G02B9/56 , G02B13/0065 , G02B13/02
摘要： An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3
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公开(公告)号：US20230251463A1
公开(公告)日：2023-08-10
申请号：US18299984
申请日：2023-04-13
发明人： Ho Sik YOO , Dong Shin YANG , Yong Joo JO , Sot Eum SEO
CPC分类号： G02B13/004 , G02B9/38 , G02B13/02 , G02B9/56 , G02B13/0065 , G02B9/50
摘要： An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3
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公开(公告)号：US20210072504A1
公开(公告)日：2021-03-11
申请号：US17101187
申请日：2020-11-23
发明人： Ho Sik YOO , Dong Shin YANG , Yong Joo JO , Sot Eum SEO
摘要： An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3
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