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公开(公告)号：US20250102771A1
公开(公告)日：2025-03-27
申请号：US18386755
申请日：2023-11-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Shih-Han CHEN , Guang-Yan LIU , Yu-Han SHIH , Hsin-Hsuan HUANG
IPC: G02B13/00
Abstract: An imaging lens assembly includes three lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element and a third lens element. Each of the three lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the second lens element is concave in a paraxial region thereof. At least one surface of at least one lens element in the imaging lens assembly has at least one inflection point.
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公开(公告)号：US20240418964A1
公开(公告)日：2024-12-19
申请号：US18817807
申请日：2024-08-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Hsin-Hsuan HUANG
Abstract: An optical imaging system includes four lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element and a fourth lens element. Each of the four lens elements of the optical imaging system has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof, and the image-side surface of the first lens element is convex in a paraxial region thereof. The object-side surface of the fourth lens element is convex in a paraxial region thereof, the image-side surface of the fourth lens element is concave in a paraxial region thereof, and the image-side surface of the fourth lens element has at least one convex shape in an off-axis region thereof.
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公开(公告)号：US20240134153A1
公开(公告)日：2024-04-25
申请号：US18398661
申请日：2023-12-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： KUAN-MING CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B9/60 , G02B13/0015 , G02B13/0045
Abstract: The present disclosure provides an imaging optical lens assembly, including, in order from an object side to an image side: a first lens element with negative refractive power having an object-side surface being concave in a paraxial region, a second lens element with positive refractive power, a third lens element with negative refractive power, a fourth lens element with positive refractive power, and a fifth lens element with negative refractive power having an image-side surface being concave in a paraxial region and at least one convex shape in an off-axial region on the image-side surface, wherein the imaging optical lens assembly has a total of five lens elements.
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公开(公告)号：US20240118526A1
公开(公告)日：2024-04-11
申请号：US18474335
申请日：2023-09-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Shih-Han CHEN , Cheng-Yu TSAI , Hsin-Hsuan HUANG
CPC classification number: G02B17/0856 , G02B13/0045
Abstract: An imaging system lens assembly includes a first lens group and a second lens group. The first lens group includes a first catadioptric lens element and a second catadioptric lens element, the second lens group includes at least one lens element. Each of an object-side surface and an image-side surface of the first catadioptric lens element and the second catadioptric lens element includes a central region and a peripheral region. The peripheral region of the object-side surface of the first catadioptric lens element includes a first refracting surface. The peripheral region of the image-side surface of the second catadioptric lens element includes a first reflecting surface. The central region of the object-side surface of the first catadioptric lens element includes a second reflecting surface. The central region of the image-side surface of the second catadioptric lens element includes a last refracting surface.
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公开(公告)号：US20240103252A1
公开(公告)日：2024-03-28
申请号：US18515556
申请日：2023-11-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin-Yao LIAO , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B5/005 , G02B5/208 , G02B9/60 , G02B27/0025 , H01L27/14625
Abstract: A photographing optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface. The third lens element has refractive power. The fourth lens element has refractive power, and an object-side surface and an image-side surface thereof are aspheric. The fifth lens element with negative refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface thereof are aspheric, and at least one of the object-side surface and the image-side surface thereof has at least one inflection point.
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Patent Agency Ranking
公开(公告)号：US20240004162A1
公开(公告)日：2024-01-04
申请号：US17899461
申请日：2022-08-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Kuan-Ting YEH , I-Hsuan CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62
Abstract: An imaging system lens assembly includes six lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. Each of the six lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The image-side surface of the fifth lens element is convex in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one inflection point.
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公开(公告)号：US20230400668A1
公开(公告)日：2023-12-14
申请号：US18238204
申请日：2023-08-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Hsin-Hsuan HUANG
CPC classification number: G02B13/004 , G02B9/34 , G02B13/18
Abstract: An optical imaging system includes four lens elements which are, in order from an object side to an image side: a first lens element, a second lens element, a third lens element and a fourth lens element. Each of the four lens elements of the optical imaging system has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof, and the image-side surface of the first lens element is convex in a paraxial region thereof. The object-side surface of the fourth lens element is convex in a paraxial region thereof, the image-side surface of the fourth lens element is concave in a paraxial region thereof, and the image-side surface of the fourth lens element has at least one convex shape in an off-axis region thereof.
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公开(公告)号：US20230375803A1
公开(公告)日：2023-11-23
申请号：US17886352
申请日：2022-08-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Shih-Han CHEN , Hsin-Hsuan HUANG , I-Hsuan CHEN
CPC classification number: G02B9/60 , G02B13/0045 , H04N5/2254 , G02B13/0065
Abstract: An image lens assembly includes five lens elements which are, in order from an outer side to an inner side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. Each of the five lens elements has an outer-side surface facing toward the outer side and an inner-side surface facing toward the inner side. The outer-side surface of the first lens element is concave in a paraxial region thereof, and the outer-side surface of the first lens element has at least one inflection point.
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公开(公告)号：US20230359001A1
公开(公告)日：2023-11-09
申请号：US18356288
申请日：2023-07-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62 , G02B1/041
Abstract: An optical image capturing lenses includes, in order from an object side to an image side, a front lens group, a stop, and a rear lens group. The front lens group includes, in order from the object side to the image side, at least a first lens element and a second lens element. The first lens element has a convex object-side surface and a concave image-side surface. The rear lens group includes, in order from the object side to the image side, at least a third lens element, a fourth lens element, a fifth lens element, and a sixth lens element. The sixth lens element is made of plastic material. The object-side surface and the image-side surface of the sixth lens are aspheric. The sixth lens element has at least one inflection point formed on at least one of the object-side surface and the image-side surface thereof.
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公开(公告)号：US20230333350A1
公开(公告)日：2023-10-19
申请号：US18212495
申请日：2023-06-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsin-Hsuan HUANG
IPC: G02B13/00 , G02B3/04 , G02B9/62 , H04N23/13 , H04N25/00 , H04N25/71 , H04N25/76 , G02B13/18 , G02B27/00 , G02B5/20
CPC classification number: G02B13/0045 , G02B3/04 , G02B9/62 , H04N23/13 , H04N25/00 , H04N25/71 , H04N25/76 , G02B13/18 , G02B27/0025 , G02B5/208
Abstract: An optical imaging system for pickup, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power having a convex object-side surface, the second lens element with refractive power, the third lens element with refractive power, the fourth lens element with refractive power, the fifth element with refractive power; the sixth lens element made of plastic, the sixth lens with refractive power having a concave image-side surface with both being aspheric, and the image-side surface having at least one inflection point.
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