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公开(公告)号：US12085693B2
公开(公告)日：2024-09-10
申请号：US17009688
申请日：2020-09-01
发明人： Litong Song , Lin Huang
CPC分类号： G02B13/0045 , G02B9/62 , G02B27/0025
摘要： The present disclosure discloses an optical lens group including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has negative refractive power; the second lens has refractive power, and an image-side surface thereof is a concave surface; the third lens has refractive power, and an image-side surface thereof is a convex surface; the fourth lens has positive refractive power, and an object-side surface thereof is a convex surface; the fifth lens has negative refractive power; and the sixth lens has refractive power. The third lens is made of glass, and a center thickness CT3 of the third lens along the optical axis and a center thickness CT4 of the fourth lens along the optical axis satisfy 1.5
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公开(公告)号：US11714266B2
公开(公告)日：2023-08-01
申请号：US16644966
申请日：2018-11-08
发明人： Xinquan Wang , Lin Huang
CPC分类号： G02B13/18 , G02B13/0035 , G02B27/4205 , G03B21/145
摘要： The disclosure discloses a projection lens, which sequentially includes a first lens, a second lens and a third lens from an image source side to an imaging side along an optical axis. The first lens has a positive refractive power, and a surface near the image source side thereof is a convex surface. The second lens has a positive refractive power or negative refractive power. The third lens has a positive refractive power is a meniscus lens of which a surface near the imaging side is a convex surface. An image source height ImgH of the projection lens and a total effective focal length f of the projection lens meet ImgH/f
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公开(公告)号：US11385441B2
公开(公告)日：2022-07-12
申请号：US16226951
申请日：2018-12-20
发明人： Lin Huang , Litong Song
摘要： The present disclosure discloses a projection lens assembly. The projection lens assembly includes, sequentially along an optical axis from an image side to a source side, a first lens, a second lens, a third lens, and a fourth lens. The first lens has a positive refractive power, and an image-side surface of the first lens is a convex surface. The second lens has a positive refractive power or a negative refractive power, and a source-side surface of the second lens is a convex surface. The third lens has a positive refractive power. The fourth lens has a positive refractive power or a negative refractive power.
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公开(公告)号：US11237366B2
公开(公告)日：2022-02-01
申请号：US16689201
申请日：2019-11-20
发明人： Fujian Dai , Lin Huang , Yunbing Ji
IPC分类号： G02B13/00 , G02B9/62 , G02B13/18 , G02B3/04 , G02B27/00 , G02B9/64 , G02B13/04 , G02B5/00 , G02B13/16
摘要： The application discloses an optical imaging lens, and the optical imaging lens sequentially comprises the following components from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, wherein the first lens has a refractive power; the second lens has a refractive power; the third lens has a refractive power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens has a refractive power, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a concave surface; the fifth lens has a refractive power; the sixth lens has a positive refractive power; and the seventh lens has a refractive power, and the object side surface of the seventh lens is a convex surface. Wherein, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy the following relation: f/EPD
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公开(公告)号：US11194125B2
公开(公告)日：2021-12-07
申请号：US16074733
申请日：2017-10-26
发明人： Lin Huang
摘要： The present disclosure discloses an iris lens assembly, having a total effective focal length f, and the iris lens assembly comprises sequentially a first lens, a second lens and a third lens from an object side to an image plane along an optical axis. The first lens has a positive refractive power, and an object-side surface of the first lens is a convex surface. Each of the second lens and the third lens has a positive refractive power or a negative refractive power. A distance TTL from the object-side surface of the first lens to the image plane on the optical axis and the total effective focal length f satisfy 0.7
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公开(公告)号：US11175478B2
公开(公告)日：2021-11-16
申请号：US16293112
申请日：2019-03-05
发明人： Lin Huang , Xinquan Wang
摘要： The present disclosure discloses an optical imaging system. The imaging system sequentially includes, from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, and a fourth lens. The first lens has a negative refractive power; the second lens has a positive refractive power or a negative refractive power; the third lens has a positive refractive power or a negative refractive power, and an image-side surface of the third lens is a concave surface; the fourth lens has a positive refractive power, and an image-side surface of the fourth lens is a concave surface. A total effective focal length f of the optical imaging system and an entrance pupil diameter EPD of the optical imaging system satisfy: f/EPD≤1.60.
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公开(公告)号：US11143843B2
公开(公告)日：2021-10-12
申请号：US16293103
申请日：2019-03-05
发明人： Lin Huang
摘要： The present disclosure discloses a projection lens assembly. The projection lens assembly includes, sequentially from an image-source side to an image side along an optical axis, a first lens having a positive refractive power; and a second lens having a positive refractive power. At least one of the first lens or the second lens is a glass lens. A total effective focal length f of the projection lens assembly and an effective focal length f2 of the second lens satisfy: 1
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公开(公告)号：US11137573B2
公开(公告)日：2021-10-05
申请号：US16226945
申请日：2018-12-20
发明人： Lin Huang , Xinquan Wang
摘要： The present disclosure discloses a projection lens assembly. The projection lens assembly includes, sequentially along an optical axis from an image-source side to an image side, a first lens having a positive refractive power or a negative refractive power; a second lens having a positive refractive power or a negative refractive power; and a third lens having a positive refractive power, wherein an image-side surface of the first lens is a convex surface. A distance TTL on the optical axis from an image-source plane of the projection lens assembly to the image-side surface of the third lens and a total effective focal length f of the projection lens assembly satisfy: TTL/f
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公开(公告)号：US10962739B2
公开(公告)日：2021-03-30
申请号：US16212008
申请日：2018-12-06
发明人： Lin Huang
摘要： The present disclosure discloses a camera lens assembly includes, sequentially along an optical axis from an object side to an image side, a first lens, a second lens, a third lens and a fourth lens, the lenses having refractive powers. At least one of the first lens or the second lens has a positive refractive power. An object-side surface of the third lens and an image-side surface of the fourth lens are both concave surfaces. Half of a diagonal length ImgH of an effective pixel area on an image plane of the camera lens assembly and a total effective focal length f of the camera lens assembly satisfy: ImgH/f>1.
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公开(公告)号：US10884234B2
公开(公告)日：2021-01-05
申请号：US16211863
申请日：2018-12-06
发明人： Litong Song , Lin Huang
摘要： The present disclosure provides an eyepiece and a display device including the eyepiece. The eyepiece includes a lens. The lens has a first surface and a second surface opposite to the first surface. The first surface is a corresponding surface of an eye side, and the second surface is a corresponding surface of a display element side. In addition, the first surface is a Fresnel structure surface, and the second surface is an aspheric curved surface. The Fresnel structure surface includes multiple annular sections arranged in sequence to form a serrated surface. An effective focal length EFL of the lens satisfies: 35 mm
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