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公开(公告)号:US08736984B1
公开(公告)日:2014-05-27
申请号:US13733129
申请日:2013-01-02
Applicant: Largan Precision Co., Ltd.
Inventor: Dung-Yi Hsieh , Wei-Yu Chen
CPC classification number: G02B13/00 , G02B9/00 , G02B9/60 , G02B9/62 , G02B9/64 , G02B13/001 , G02B13/0045 , G02B13/02
Abstract: An image capturing 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 at a paraxial region thereof. The second lens element with refractive power has an object-side surface being convex at a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element with negative refractive power has an object-side surface being concave at a paraxial region thereof and an image-side surface being convex at a paraxial region thereof. The fifth lens element with negative refractive power has an image-side surface being concave at a paraxial region thereof and being convex at a peripheral region thereof, wherein the surfaces of the fifth lens element are aspheric.
Abstract translation: 第一透镜元件,第二透镜元件,第三透镜元件,第四透镜元件和第五透镜元件,从物体侧到像侧依次包括图像拍摄透镜组件。 具有正折光力的第一透镜元件具有在其近轴区域处凸出的物体侧表面。 具有屈光力的第二透镜元件的物体侧表面在其近轴区域是凸的。 第三透镜元件具有正的折光力。 具有负屈光力的第四透镜元件的物体侧表面在其近轴区域是凹形的,并且图像侧表面在其近轴区域处是凸形的。 具有负屈光力的第五透镜元件具有在其近轴区域处凹陷的图像侧表面,并且在其周边区域处凸出,其中第五透镜元件的表面是非球面的。
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公开(公告)号:US20140133015A1
公开(公告)日:2014-05-15
申请号:US13803401
申请日:2013-03-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Chun-Che Hsueh , Wei-Yu Chen
CPC classification number: G02B13/004
Abstract: An image capturing 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. The first lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element with positive refractive power has a convex object-side surface and an image-side surface being concave at a paraxial region and convex away from the paraxial region. The fourth lens element has both of the object-side surface and the image-side surface being aspheric.
Abstract translation: 图像拍摄系统透镜组件从物体侧到像侧依次包括第一透镜元件,第二透镜元件,第三透镜元件和第四透镜元件。 具有正折射力的第一透镜元件具有凸形的物体侧表面和凸形的图像侧表面。 第二透镜元件具有正的折光力。 第三透镜元件具有正的折光力。 具有正折光力的第四透镜元件具有凸的物体侧表面,并且图像侧表面在近轴区域处是凹形的并且远离近轴区域凸出。 第四透镜元件具有非球面的物体侧表面和图像侧表面。
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公开(公告)号:US12174349B2
公开(公告)日:2024-12-24
申请号:US17506391
申请日:2021-10-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuan-Ting Yeh , Wei-Yu Chen
Abstract: An imaging optical lens system 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. The first lens element has positive refractive power. The second lens element has negative refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in an off-axis region thereof.
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公开(公告)号:US12066606B2
公开(公告)日:2024-08-20
申请号:US17074372
申请日:2020-10-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuan-Ting Yeh , Wei-Yu Chen
CPC classification number: G02B15/144 , G02B13/18
Abstract: An image lens assembly includes four lens groups: a first lens group, a second lens group, a third lens group and a fourth lens group along an optical path. The four lens groups include nine lens elements: a first lens element with positive refractive power, a second lens element with negative refractive power, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element, an eighth lens element and a ninth lens element along the optical path. At least one lens element of the image lens assembly has at least one inflection point. At least five lens elements of the image lens assembly are made of plastic material. When focusing or zooming, the first lens group and the fourth lens group stay stationary, while the second lens group and the third lens group move along an optical axis.
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公开(公告)号:US11947088B2
公开(公告)日:2024-04-02
申请号:US18101029
申请日:2023-01-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An imaging optical lens assembly includes nine 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, an eighth lens element and a ninth lens element. The first lens element has positive refractive power. The eighth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The ninth lens element has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the ninth lens element has at least one convex critical point in an off-axis region thereof.
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公开(公告)号:US11940597B2
公开(公告)日:2024-03-26
申请号:US17376250
申请日:2021-07-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuan-Ting Yeh , Wei-Yu Chen
CPC classification number: G02B13/004 , G02B9/34
Abstract: An image capturing optical lens system includes four 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 and a fourth lens element. The first lens element has an object-side surface being convex in a paraxial region thereof. The third 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 fourth lens element has negative refractive power.
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公开(公告)号:US11846759B2
公开(公告)日:2023-12-19
申请号:US17722957
申请日:2022-04-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An optical lens system includes nine 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, a seventh lens element, an eighth lens element and a ninth lens element. At least one lens surface of the seventh lens element, the eighth lens element and the ninth lens element has at least one critical point in an off-axis region thereof, and each of the seventh lens element, the eighth lens element and the ninth lens element has at least one lens surface being aspheric.
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公开(公告)号:US11789236B2
公开(公告)日:2023-10-17
申请号:US17234868
申请日:2021-04-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Hsiang-Chi Tang , Chun-Yen Chen , Hung-Shuo Chen , Wei-Yu Chen
CPC classification number: G02B9/64 , G02B13/0045
Abstract: A photographing optical 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. 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 has positive refractive power. The sixth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The seventh lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof and including at least one convex critical point in an off-axis region thereof.
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公开(公告)号:US11719911B2
公开(公告)日:2023-08-08
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
CPC classification number: G02B9/64 , G02B13/0045 , G02B13/02 , G02B27/0025
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:US11714264B2
公开(公告)日:2023-08-01
申请号:US17152321
申请日:2021-01-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Wei-Yu Chen
CPC classification number: G02B9/64 , G02B13/0045 , G02B5/005 , G02B13/002 , G02B13/18 , G02B27/0025
Abstract: A 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, a sixth lens element and a seventh lens element with refractive power. The first lens element with positive refractive power has an object-side surface being convex in paraxial region. The second lens element with refractive power has an image-side surface being concave in paraxial region. The third, fourth and fifth lens elements all have refractive powers. The sixth lens element with refractive power has an image-side surface being concave in paraxial region, wherein the image-side surface has at least one convex shape in off-axis region, and both of two surfaces are aspheric. The seventh lens element with refractive power has an object-side surface being concave in paraxial region, and both of two surfaces are aspheric.
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