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公开(公告)号：US20230305270A1
公开(公告)日：2023-09-28
申请号：US17834829
申请日：2022-06-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Meng-Kuan CHO
CPC classification number: G02B13/0045 , G02B9/60
Abstract: An optical imaging lens system 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 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 positive refractive power. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The object-side surface of the fifth lens element is convex in a paraxial region thereof, and the image-side surface of the fifth lens element is concave in a paraxial region thereof.
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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：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：US20220350117A1
公开(公告)日：2022-11-03
申请号：US17810693
申请日：2022-07-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi HSIEH , Chun-Che HSUEH , Wei-Yu CHEN
Abstract: An imaging optical 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 and a fifth lens element. The first lens element with refractive power has an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region and having a convex shape in an off-axial region thereof.
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公开(公告)号：US20200371318A1
公开(公告)日：2020-11-26
申请号：US16993128
申请日：2020-08-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Chun-Che HSUEH , Wei-Yu CHEN
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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Patent Agency Ranking
公开(公告)号：US20190129146A1
公开(公告)日：2019-05-02
申请号：US15867469
申请日：2018-01-10
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chien-Hsun WU , Chun-Che HSUEH , Wei-Yu CHEN
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-side surface being convex in a paraxial region thereof. The sixth lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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公开(公告)号：US20180321469A1
公开(公告)日：2018-11-08
申请号：US16015491
申请日：2018-06-22
Applicant: Largan Precision Co.,Ltd.
Inventor： Chun-Che HSUEH , Hsin-Hsuan HUANG
IPC: G02B13/00
CPC classification number: G02B13/0035
Abstract: An optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex, and the object-side surface and an image-side surface thereof are aspheric. The second lens element with negative refractive power has an image-side surface being concave, and an object-side surface and the image-side surface thereof are aspheric. The third lens element with refractive power has an object-side surface being concave, and the object-side surface and an image-side surface thereof are aspheric. The optical lens assembly further includes a stop with no lens element having refractive power disposed between the stop and the first lens element. The optical lens assembly has a total of three lens elements with refractive power.
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公开(公告)号：US20180188496A1
公开(公告)日：2018-07-05
申请号：US15677126
申请日：2017-08-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tung-Yi HSIEH , Cheng-Chen LIN , Chun-Che HSUEH , Chun-Yen CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62
Abstract: An image capturing assembly includes six lens elements, the six lens elements being, 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 positive refractive power. The fourth lens element with positive refractive power has an image-side surface being convex. The fifth lens element has an image-side surface being concave. The sixth lens element has an image-side surface being concave, wherein the image-side surface of the sixth lens element includes at least one inflection point.
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公开(公告)号：US20180095251A1
公开(公告)日：2018-04-05
申请号：US15827233
申请日：2017-11-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi HSIEH , Chun-Yen CHEN , Chun-Che HSUEH , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/60
Abstract: An optical photographing 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 negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.
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公开(公告)号：US20180059375A1
公开(公告)日：2018-03-01
申请号：US15354695
申请日：2016-11-17
Applicant: LARGAN Precision Co., Ltd.
Inventor： Chun-Che HSUEH , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B5/005 , G02B5/208 , G02B9/62 , G02B27/0025
Abstract: An imaging lens 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 negative refractive power. The third lens element and the fourth lens element both have positive refractive power. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface thereof are aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one inflection point in an off-axial region thereof, and an object-side surface and the image-side surface thereof are aspheric. The imaging lens system has a total of six lens elements.
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