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公开(公告)号：US20220244504A1
公开(公告)日：2022-08-04
申请号：US17721258
申请日：2022-04-14
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：US20210088698A1
公开(公告)日：2021-03-25
申请号：US16932928
申请日：2020-07-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU , Cheng-Feng LIN , Po-Lun HSU , Ming-Shun CHANG , Ming-Ching LIN
Abstract: An imaging lens assembly module has an optical axis, and includes at least one plastic lens element, a carrier element and a light absorbing layer. The plastic lens element, in order from a center to a peripheral region thereof, includes an optical effective portion and a peripheral portion. A side of the peripheral portion includes a plurality of step structures interposed between the side of the peripheral portion and a same side of the optical effective portion. The carrier element defines an inner space for disposing the plastic lens element, and includes a tip end minimal opening and a plurality of annular inner walls. The light absorbing layer is disposed on the peripheral portion of the plastic lens element, and the step structures and the at least one of the annular inner walls facing towards the plastic lens element.
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公开(公告)号：US20210018724A1
公开(公告)日：2021-01-21
申请号：US16557692
申请日：2019-08-30
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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公开(公告)号：US20190243107A1
公开(公告)日：2019-08-08
申请号：US16384036
申请日：2019-04-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/64
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：US20190094494A1
公开(公告)日：2019-03-28
申请号：US15865503
申请日：2018-01-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Chun-Yen CHEN , Chun-Che HSUEH , Wei-Yu CHEN
CPC classification number: G02B9/64 , G02B13/0045 , G02B27/0025
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. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof and including at least one convex shape in an off-axis region thereof. An object-side surface and the image-side surface of the seventh lens element are aspheric.
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Patent Agency Ranking
公开(公告)号：US20180095252A1
公开(公告)日：2018-04-05
申请号：US15834947
申请日：2017-12-07
Applicant: LARGAN Precision Co., Ltd.
Inventor： Po-Lun HSU , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/60 , G02B13/02 , G02B13/18 , G02B27/0025
Abstract: An imaging 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. The second lens element with negative refractive power has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface and an image-side surface being aspheric. The fourth lens element with negative refractive power has an object-side surface being concave and an image-side surface being concave in a paraxial region, wherein the image-side surface has convex shape in an off-axis region, and the two surfaces thereof are aspheric. The fifth lens element with positive refractive power has an object-side surface and an image-side surface being both aspheric.
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公开(公告)号：US20170199349A1
公开(公告)日：2017-07-13
申请号：US15046309
申请日：2016-02-17
Applicant: LARGAN Precision Co., Ltd.
Inventor： Po-Lun HSU , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/60 , G02B27/0025
Abstract: An imaging 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. The second lens element with negative refractive power has an object-side surface being concave in a paraxial region. The third lens element has an object-side surface and an image-side surface being aspheric. The fourth lens element with negative refractive power has an object-side surface being concave and an image-side surface being concave in a paraxial region, wherein the image-side surface has convex shape in an off-axis region, and the two surfaces thereof are aspheric. The fifth lens element with positive refractive power has an object-side surface and an image-side surface being both aspheric.
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公开(公告)号：US20170176722A1
公开(公告)日：2017-06-22
申请号：US15447085
申请日：2017-03-01
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Cheng-Chen LIN , Po-Lun HSU , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B5/005 , G02B9/62 , G02B13/0015 , G02B13/002 , G02B13/04 , G02B13/06 , G02B13/18 , G02B27/0025 , H04N5/2254
Abstract: A 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 with negative refractive power has a concave image-side surface in a paraxial region. The second lens element with refractive power has a convex object-side surface in a paraxial region. The third lens element has positive refractive power. The fourth lens element with positive refractive power has an object-side and an image-side surfaces being aspheric. The fifth lens element with negative refractive power has an aspheric concave object-side surface and an aspheric convex image-side surface in a paraxial region. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region with a convex shape in an off-axis region.
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公开(公告)号：US20160041372A1
公开(公告)日：2016-02-11
申请号：US14918546
申请日：2015-10-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Chun-Shan CHEN , Dung-Yi HSIEH , Tsung-Han TSAI , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/60 , G02B27/0025
Abstract: An optical 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 a convex object-side surface. The second lens element has negative refractive power. The third lens element has negative refractive power. The fourth lens element with negative refractive power has a concave object-side surface and a convex image-side surface. The fifth lens element with refractive power has a concave image-side surface, wherein the fifth lens element has at least one inflection point formed on at least one surface thereof. Both of the object-side surface and the image-side surface of the fourth and fifth lens elements are aspheric. The optical image capturing lens assembly has a total of five lens elements with refractive power.
Abstract translation: 光学摄像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。 具有正折光力的第一透镜元件具有凸的物体侧表面。 第二透镜元件具有负屈光力。 第三透镜元件具有负折光力。 具有负屈光力的第四透镜元件具有凹入的物体侧表面和凸形的图像侧表面。 具有屈光力的第五透镜元件具有凹形图像侧表面，其中第五透镜元件在其至少一个表面上形成有至少一个拐点。 第四和第五透镜元件的物体侧表面和图像侧表面都是非球面的。 光学图像拍摄透镜组件具有总共具有屈光力的五个透镜元件。
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公开(公告)号：US20240134159A1
公开(公告)日：2024-04-25
申请号：US18398377
申请日：2023-12-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/64
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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