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公开(公告)号：US20210132338A1
公开(公告)日：2021-05-06
申请号：US16733094
申请日：2020-01-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Cheng-Yuan LIAO , Jin Sen WANG , Tzu-Chieh KUO
Abstract: An imaging optical system includes six 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, 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. At least one of the six lens elements is a freeform lens element, and at least one of the object-side surface and the image-side surface of the at least one freeform lens element is a freeform surface.
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公开(公告)号：US20240085664A1
公开(公告)日：2024-03-14
申请号：US17960685
申请日：2022-10-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Xiang FU , Jin Sen WANG , I-Hsuan CHEN , Hsin-Hsuan HUANG
Abstract: An imaging system 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 an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The fifth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof and having at least one inflection point.
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公开(公告)号：US20230194834A1
公开(公告)日：2023-06-22
申请号：US18110877
申请日：2023-02-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Jin Sen WANG , Hsin-Hsuan HUANG , Fuh-Shyang YANG
IPC: G02B13/00 , G01S17/894 , G02B9/06 , G02B27/00
CPC classification number: G02B13/003 , G01S17/894 , G02B9/06 , G02B27/0025
Abstract: An optical lens system includes two lens elements which are, in order from an object side to an image side along an optical path: a first lens element and a second lens element. Each of the two lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of the object-side surface and the image-side surface of at least one lens element of the optical lens system is aspheric. A total number of the lens elements in the optical lens system is two.
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公开(公告)号：US20230132957A1
公开(公告)日：2023-05-04
申请号：US17537870
申请日：2021-11-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Jin Sen WANG , Kuo-Jui WANG , Kuan-Ting YEH , Tzu-Chieh KUO
IPC: G02B9/64 , G02B13/00 , H01L27/146
Abstract: An optical photographing system includes seven 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, a sixth lens element and a seventh lens element. Each of the seven 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 sixth lens element is convex in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the optical photographing system has at least one inflection point.
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公开(公告)号：US20220035131A1
公开(公告)日：2022-02-03
申请号：US17020590
申请日：2020-09-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Chun KE , Jin Sen WANG , Ssu-Hsin LIU , Wei-Yu CHEN
Abstract: An image lens assembly includes five 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 and a fifth lens element. The first lens element has positive refractive power. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and having at least one concave critical point in an off-axis region thereof. The fifth lens element has an image-side surface being concave in a paraxial region thereof and having at least one convex critical point in an off-axis region thereof.
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Patent Agency Ranking
公开(公告)号：US20210191075A1
公开(公告)日：2021-06-24
申请号：US16814914
申请日：2020-03-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuo-Jui WANG , Kuan Chun WANG , Hung-Shuo CHEN , Jin Sen WANG , Syuan Ruei LAI , Wei-Yu CHEN
Abstract: An optical lens assembly includes four lens elements which are, in order from an object side to an image side along an imaging optical path: a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point in an off-axis region thereof.
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公开(公告)号：US20220350114A1
公开(公告)日：2022-11-03
申请号：US17480567
申请日：2021-09-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Jin Sen WANG , Hsin-Hsuan HUANG , FUH-SHYANG YANG
IPC: G02B13/00 , G02B9/06 , G01S17/894
Abstract: An optical lens system includes two lens elements which are, in order from an object side to an image side along an optical path: a first lens element and a second lens element. Each of the two lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of the object-side surface and the image-side surface of at least one lens element of the optical lens system is aspheric. A total number of the lens elements in the optical lens system is two.
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公开(公告)号：US20220236530A1
公开(公告)日：2022-07-28
申请号：US17198089
申请日：2021-03-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Jin Sen WANG , Tzu-Chieh KUO
Abstract: An optical photographing lens assembly includes five 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 and a fifth lens element. Each of the five 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 negative refractive power, and the object-side surface of the first lens element is concave in a paraxial region thereof. The five lens elements include at least one freeform lens element, and at least one of the object-side surface and the image-side surface of the at least one freeform lens element is a freeform surface.
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公开(公告)号：US20210255429A1
公开(公告)日：2021-08-19
申请号：US17115731
申请日：2020-12-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Yu-Chun KE , Jin Sen WANG , Wei-Yu CHEN , Chun-Yen CHEN
Abstract: An imaging optical lens assembly includes seven 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, a sixth lens element and a seventh lens element. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof.
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公开(公告)号：US20210255428A1
公开(公告)日：2021-08-19
申请号：US16897737
申请日：2020-06-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Yu-Chun KE , Jin Sen WANG , Wei-Yu CHEN
Abstract: An imaging optical lens assembly includes seven 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, a sixth lens element and a seventh lens element. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has negative refractive power. The fifth lens element has an object-side surface being concave in a paraxial region thereof. The sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof.
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