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公开(公告)号：US20220390815A1
公开(公告)日：2022-12-08
申请号：US17827580
申请日：2022-05-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Tzu-Chieh KUO
Abstract: An optical imaging lens assembly having a zooming function includes, in order from an object side to an image side along an optical path: a reflection group and a lens group. The reflection group includes a prism having an object-side surface being convex. The prism includes a reflection surface configured to reflect an imaging light passing through the object-side surface of the prism and send the imaging light to an image-side surface of the prism. The lens group includes at least three lens elements arranged along the optical path, and each of the at least three lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The lens group includes a movable group, and the movable group moves along a direction parallel to an optical axis in a zooming process.
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公开(公告)号：US20220137369A1
公开(公告)日：2022-05-05
申请号：US17572950
申请日：2022-01-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Hsin-Hsuan HUANG
Abstract: An image capturing optical system includes seven lens elements, the seven 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, a sixth lens element and a seventh lens element. An image-side surface of the fifth lens element is convex in a paraxial region thereof. An image-side surface of the sixth lens element is concave in a paraxial region thereof. The seventh lens element has negative refractive power.
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公开(公告)号：US20210231923A1
公开(公告)日：2021-07-29
申请号：US17225177
申请日：2021-04-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Tsung-Han TSAI , Hsin-Hsuan HUANG
Abstract: A 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, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element, the third lens element and the fourth lens element have refractive power. The fifth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and at least one of the surfaces thereof has at least one inflection point thereon. The sixth lens element with negative refractive power has a convex object-side surface and a concave image-side surface, wherein the surfaces thereof are aspheric, and at least one of the surfaces thereof has at least one inflection point.
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公开(公告)号：US20200301110A1
公开(公告)日：2020-09-24
申请号：US16404508
申请日：2019-05-06
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Po-Lun HSU , Tzu-Chieh KUO
Abstract: An optical imaging 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 imaging lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one lens element of the optical imaging lens assembly has at least one aspheric lens surface having at least one inflection point. The object-side surface of the seventh lens element is concave in a paraxial region thereof.
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公开(公告)号：US20200285027A1
公开(公告)日：2020-09-10
申请号：US16413200
申请日：2019-05-15
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Hung-Shuo CHEN , Syuan Ruei LAI , Kuo-Jui WANG , Po-Lun HSU , Wei-Yu CHEN
Abstract: An imaging optical lens assembly 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. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof.
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Patent Agency Ranking
公开(公告)号：US20200233183A1
公开(公告)日：2020-07-23
申请号：US16838843
申请日：2020-04-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Wei-Yu CHEN , Kuan-Ting YEH , Ssu-Hsin LIU
Abstract: A photographing 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 with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power 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 sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.
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公开(公告)号：US20180299649A1
公开(公告)日：2018-10-18
申请号：US15796276
申请日：2017-10-27
Applicant: LARGAN Precision Co., Ltd.
Inventor： Po-Lun HSU , Wei-Yu CHEN , Kuan-Ting YEH , Ssu-Hsin LIU
Abstract: A photographing 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 with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power 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 sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.
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公开(公告)号：US20150185446A1
公开(公告)日：2015-07-02
申请号：US14199990
申请日：2014-03-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Lin-Yao LIAO , Cheng-Chen LIN , Wei-Yu CHEN
CPC classification number: G02B13/0045
Abstract: An 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 an object-side surface being convex in a paraxial region thereof. The second lens element has negative refractive power. The third lens element has refractive power. The fourth lens element with negative refractive power 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 the image-side surface thereof has at least one convex shape in an off-axial region thereof.
Abstract translation: 光学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，第四透镜元件和第五透镜元件。 具有正屈光力的第一透镜元件具有在其近轴区域中凸出的物体侧表面。 第二透镜元件具有负屈光力。 第三透镜元件具有屈光力。 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入的，并且图像侧表面在其近轴区域是凸形的。 具有正屈光力的第五透镜元件具有在其近轴区域中凸出的物体侧表面和在近轴区域中具有凹陷的图像侧表面，并且其图像侧表面具有至少一个凸起形状 其轴外区域。
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公开(公告)号：US20140293455A1
公开(公告)日：2014-10-02
申请号：US14302410
申请日：2014-06-11
Applicant: Largan Precision Co., Ltd.
Inventor： Chun-Shan CHEN , Hsiang-Chi TANG , Po-Lun HSU , Ming-Ta CHOU
IPC: G02B3/04
CPC classification number: G02B3/04 , G02B9/60 , G02B13/0045 , G02B13/18
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 and a fifth lens element. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element with positive refractive power has a convex object-side surface and a convex image-side surface. The fourth lens element with negative refractive power has a concave object-side surface. The object-side surface and an image-side surface of the fourth lens element are aspheric. The fifth lens element with refractive power has a concave image-side surface. An object-side surface and the image-side surface of the fifth lens element are aspheric, and the fifth lens element has at least one inflection point formed on the image-side surface thereof.
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拍摄系统。 第一透镜元件具有正折光力。 第二透镜元件具有负屈光力。 具有正屈光力的第三透镜元件具有凸的物体侧表面和凸形的图像侧表面。 具有负屈光力的第四透镜元件具有凹入的物体侧表面。 第四透镜元件的物体侧表面和图像侧表面是非球面的。 具有屈光力的第五透镜元件具有凹形图像侧表面。 第五透镜元件的物体侧表面和像侧表面是非球面的，并且第五透镜元件具有形成在其图像侧表面上的至少一个拐点。
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公开(公告)号：US20220269047A1
公开(公告)日：2022-08-25
申请号：US17743326
申请日：2022-05-12
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Po-Lun HSU , Tzu-Chieh KUO
Abstract: An optical imaging lens assembly includes a focus tunable component and an imaging lens system. The imaging lens system includes, in order from an object side to an image side, a first lens group and a second lens group. The first lens group includes, in order from the object side to the image side, an object-side first lens element and an object-side second lens element. The second lens group includes, in order from the image side to the object side, an image-side first lens element and an image-side second lens element. At least one lens surface of at least one lens element in the imaging lens system is aspheric and has at least one inflection point. The imaging lens system has a total of at least four lens elements.
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