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公开(公告)号：US20230204927A1
公开(公告)日：2023-06-29
申请号：US18172400
申请日：2023-02-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Yu-Tai TSENG , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/04 , G02B27/0025
Abstract: An optical photographing system 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, a fifth lens element and a sixth lens element. The first lens element has an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has two surfaces being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the surfaces of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex shape in an off-axial region thereof.
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公开(公告)号：US20230088080A1
公开(公告)日：2023-03-23
申请号：US18052596
申请日：2022-11-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Tzu-Chieh KUO
Abstract: A photographing optical lens assembly includes eight 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, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof.
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公开(公告)号：US20200310082A1
公开(公告)日：2020-10-01
申请号：US16421272
申请日：2019-05-23
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Yu-Tai TSENG , 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 has at least one convex shape in an off-axis region thereof. The object-side surface of the first lens element is aspheric. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The optical imaging system has a total of four lens elements.
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公开(公告)号：US20200249434A1
公开(公告)日：2020-08-06
申请号：US16297199
申请日：2019-03-08
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Cheng-Chen LIN , Yu-Tai TSENG , Tzu-Chieh KUO
Abstract: An optical photographing lens assembly includes seven 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, a sixth lens element and a seventh lens element. Each of the seven lens elements of the optical photographing lens assembly 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. The object-side surface of the first lens element is aspheric and has at least one critical point in an off-axis region thereof.
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公开(公告)号：US20190094500A1
公开(公告)日：2019-03-28
申请号：US16196700
申请日：2018-11-20
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Yu-Tai TSENG , Tung-Yi HSIEH , Hsin-Hsuan HUANG
Abstract: A photographing lens assembly includes five lens elements, 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. The second lens element has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface being convex in a paraxial region. The fourth lens element has an object-side surface being concave in a paraxial region, wherein two surfaces thereof are both aspheric. The fifth lens element has an object-side surface and an image-side surface being both aspheric. At least one surface of the lens elements has at least one inflection point.
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Patent Agency Ranking
公开(公告)号：US20190079270A1
公开(公告)日：2019-03-14
申请号：US15795003
申请日：2017-10-26
Applicant: LARGAN Precision Co., Ltd.
Inventor： Yu-Tai TSENG , Tzu-Chieh KUO
CPC classification number: G02B13/0045 , G02B9/64 , G02B27/0025 , H04N5/23212
Abstract: An image system lens assembly includes seven 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, a sixth lens element and a seventh lens element. At least one surface among object-side surfaces and image-side surfaces of the fifth lens element, the sixth lens element and the seventh lens element has at least one critical point in an off-axis region thereof.
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公开(公告)号：US20240168261A1
公开(公告)日：2024-05-23
申请号：US18120340
申请日：2023-03-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Po-Wei CHEN , I-Hsuan CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B13/004 , G02B9/44 , G02B13/0065
Abstract: A photographing 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 and a fourth lens element. Each of the four 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 surface of at least one lens element in the photographing system lens assembly has at least one inflection point. The first lens element has positive refractive power, the object-side surface of the first lens element is convex 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 second lens element is concave in a paraxial region thereof. The image-side surface of the third lens element is concave in a paraxial region thereof.
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公开(公告)号：US20230026033A1
公开(公告)日：2023-01-26
申请号：US17828068
申请日：2022-05-31
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Lin-An CHANG , Ming-Ta CHOU , Hsiang-Chi TANG
Abstract: An electronic device includes a display screen, a first aperture region and a second aperture region. The display screen is disposed on a surface of the electronic device. The first aperture region is disposed on the surface of the electronic device, and a visible light is able to enter into an internal portion of the electronic device through the first aperture region. The second aperture region is disposed on the surface of the electronic device, and the visible light is able to enter into the internal portion of the electronic device through the second aperture region. The display screen is disposed between the first aperture region and the second aperture region and configured to be a spacing maintained therebetween, and a shape of the first aperture region and a shape of the second aperture region are non-circular and mirror-symmetrical to each other.
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公开(公告)号：US20220196973A1
公开(公告)日：2022-06-23
申请号：US17693033
申请日：2022-03-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , 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 has at least one convex shape in an off-axis region thereof. The object-side surface of the first lens element is aspheric. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The optical imaging system has a total of four lens elements.
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公开(公告)号：US20210223515A1
公开(公告)日：2021-07-22
申请号：US16942922
申请日：2020-07-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Tzu-Chieh KUO
Abstract: A photographing optical lens assembly includes eight 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, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof.
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