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公开(公告)号：US20230350162A1
公开(公告)日：2023-11-02
申请号：US18345713
申请日：2023-06-30
发明人： Ho Sik YOO , Dong Shin YANG
CPC分类号： G02B13/004 , G02B3/0062 , G02B27/123 , H04N23/55 , G03B13/36
摘要： An optical imaging system includes a first lens having positive refractive power, a second lens, a third lens, and a fourth lens, arranged sequentially from an object side along an optical axis. The first lens through the fourth lens are spaced apart from each other along the optical axis in a paraxial region. A total focal length f of a lens unit including the first lens through the fourth lens and half (IMG HT) of a diagonal length of an imaging surface of an image sensor satisfy f/IMG HT >4.9. An effective aperture radius of an object-side surface of the first lens and an effective aperture radius of an object-side surface of the second lens are both greater than effective aperture radii of an object-side surface and an image-side surface of each of the lenses other than the first lens and the second lens.
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公开(公告)号：US20210199925A1
公开(公告)日：2021-07-01
申请号：US17014068
申请日：2020-09-08
发明人： Dong Shin YANG , Ju Sung PARK , Ho Sik YOO , Sot Eum SEO
摘要： Disclosed are lens assembly including a lens having a length in a first direction, perpendicular to an optical axis, shorter than a length in a second direction, perpendicular to both the optical axis and the first direction, on a plane perpendicular to the optical axis, and a lens barrel accommodating the lens, and having an opening in a side of the lens barrel, wherein a side of the lens in the first direction is exposed through the opening.
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公开(公告)号：US20180180847A1
公开(公告)日：2018-06-28
申请号：US15631251
申请日：2017-06-23
发明人： Ho Sik YOO
CPC分类号： G02B13/001 , G02B9/62 , G02B13/002 , G02B13/0045 , G02B13/0065 , G02B27/0025
摘要： An optical imaging system includes: a plurality of lenses disposed along an optical axis; and a reflection member closer to an object than the plurality of lenses, and including a reflection surface configured to change a path of light; wherein the plurality of lenses are spaced apart from each other by preset distances along the optical axis; and the condition 0.9
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公开(公告)号：US20220350115A1
公开(公告)日：2022-11-03
申请号：US17862161
申请日：2022-07-11
发明人： Ho Sik YOO , Dong Shin YANG
摘要： An optical imaging system includes a first lens having positive refractive power, a second lens, a third lens, and a fourth lens, arranged sequentially from an object side along an optical axis. The first lens through the fourth lens are spaced apart from each other along the optical axis in a paraxial region. A total focal length f of a lens unit including the first lens through the fourth lens and half (IMG HT) of a diagonal length of an imaging surface of an image sensor satisfy f/IMG HT>4.9. An effective aperture radius of an object-side surface of the first lens and an effective aperture radius of an object-side surface of the second lens are both greater than effective aperture radii of an object-side surface and an image-side surface of each of the lenses other than the first lens and the second lens.
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公开(公告)号：US20200012080A1
公开(公告)日：2020-01-09
申请号：US16574364
申请日：2019-09-18
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 having a concave image-side surface; a second lens having refractive power; a third lens having a concave image-side surface; a fourth lens having a concave object-side surface or a convex image-side surface; a fifth lens having refractive power; a sixth lens having a concave image-side surface; and a seventh lens having negative refractive power. The first to seventh lenses are sequentially disposed from an object side and 1.62
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公开(公告)号：US20190056566A1
公开(公告)日：2019-02-21
申请号：US15892758
申请日：2018-02-09
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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公开(公告)号：US20240053584A1
公开(公告)日：2024-02-15
申请号：US18494802
申请日：2023-10-26
发明人： Dae Hyun JEONG , Ho Sik YOO , Jong In LEE , Jong Ki KIM
摘要： An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens, sequentially disposed from an object side, wherein the first to fifth lenses are spaced apart from each other by predetermined distances along an optical axis in a paraxial region, the first lens and the second lens each have a non-circular shape when viewed in an optical axis direction, and the optical imaging system satisfies 0.62398
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公开(公告)号：US20230113899A1
公开(公告)日：2023-04-13
申请号：US17678462
申请日：2022-02-23
发明人： Joon Hee BYUN , Ho Sik YOO , Che Young LIM
摘要： An optical imaging system includes a lens group including at least one lens forming a first optical axis; and an optical path converter reflecting light emitted from the lens group to form an image on an imaging plane. In the optical imaging system, a maximum distance from an object side surface of a frontmost lens, disposed closest to an object side, among the lens group, to the imaging plane, in a first optical axis direction is 11.0 mm or less.
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公开(公告)号：US20220121005A1
公开(公告)日：2022-04-21
申请号：US17562410
申请日：2021-12-27
发明人： Ho Sik YOO
摘要： An optical imaging system includes: a plurality of lenses disposed along an optical axis; and a reflection member closer to an object than the plurality of lenses, and including a reflection surface configured to change a path of light; wherein the plurality of lenses are spaced apart from each other by preset distances along the optical axis; and the condition 0.9
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公开(公告)号：US20210302684A1
公开(公告)日：2021-09-30
申请号：US17149034
申请日：2021-01-14
发明人： Dong Shin YANG , Ho Sik YOO , Sot Eum SEO
IPC分类号： G02B7/02
摘要： A spacer includes: an opening through which light passes; an inner side surface forming the opening; and a protruding portion including a plurality of protrusions protruding from the inner side surface. Lengths of the plurality of protrusions vary in a circumferential direction of the protruding portion.
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