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公开(公告)号：US20180003863A1
公开(公告)日：2018-01-04
申请号：US15704232
申请日：2017-09-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU
CPC classification number: G02B3/04 , G02B1/041 , G02B7/021 , G02B7/022 , G02B13/0045 , G02B27/0018 , G02B27/0025
Abstract: A plastic lens element includes an effective optical portion and a peripheral portion in order from an optical axis to an edge thereof. The peripheral portion includes a plurality of rib structures, wherein each of the rib structures has a strip shape in a radial direction of the optical axis, and the rib structures are arranged around the effective optical portion and indirectly connected to the effective optical portion.
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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：US20140226220A1
公开(公告)日：2014-08-14
申请号：US14253857
申请日：2014-04-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tsung-Han TSAI , Ming-Ta CHOU
IPC: G02B3/04
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/64 , G02B13/02 , G02B13/04 , G02B13/18 , G02B13/22 , G02B27/0025 , H04N5/2254
Abstract: An image lens assembly 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. The first lens element with negative refractive power has a convex object-side surface. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power is made of plastic material, wherein at least one surface of the sixth lens element is aspheric. The seventh lens element with refractive power made of plastic material has a concave image-side surface changing from concave in a paraxial region to convex in a peripheral region, and at least one surface thereof is 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，第五透镜元件，第六透镜元件和第七透镜元件 透镜元件 具有负屈光力的第一透镜元件具有凸起的物体侧表面。 第二透镜元件具有正的折光力。 第三透镜元件具有屈光力。 第四透镜元件具有屈光力。 第五透镜元件具有屈光力。 具有屈光力的第六透镜元件由塑料材料制成，其中第六透镜元件的至少一个表面是非球面的。 具有由塑料材料制成的屈光力的第七透镜元件具有凹面图像侧表面，其在近轴区域中的凹部在周边区域中变为凸形，并且其至少一个表面是非球面的。
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公开(公告)号：US20140063622A1
公开(公告)日：2014-03-06
申请号：US13682748
申请日：2012-11-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tsung-Han TSAI , Ming-Ta CHOU
IPC: G02B3/02
CPC classification number: G02B13/18 , G02B3/02 , G02B13/0045 , G02B13/04
Abstract: An imaging 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 negative refractive power has an object-side surface being concave at a paraxial region thereof, wherein the surfaces thereof are aspheric. The second lens element has refractive power. The third lens element has positive refractive power. The fourth lens element has negative refractive power. The fifth lens element with positive refractive power has an object-side surface being convex at a paraxial region thereof and an image-side surface being concave at a paraxial region thereof, wherein the object-side surface thereof changes from convex at the paraxial region thereof to concave at a peripheral region thereof, and the surfaces thereof are aspheric.
Abstract translation: 成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。 具有负屈光力的第一透镜元件具有在其近轴区域处凹入的物体侧表面，其中其表面是非球面的。 第二透镜元件具有屈光力。 第三透镜元件具有正的折光力。 第四透镜元件具有负折光力。 具有正屈光力的第五透镜元件的物体侧表面在其近轴区域是凸的，并且图像侧表面在其近轴区域处是凹入的，其中物侧表面在其近轴区域处从凸起变化 在其周边区域凹陷，并且其表面是非球面的。
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公开(公告)号：US20140043694A1
公开(公告)日：2014-02-13
申请号：US13671540
申请日：2012-11-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tsung-Han TSAI , Ming-Ta CHOU
IPC: G02B3/04
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/64 , G02B13/02 , G02B13/04 , G02B13/18 , G02B13/22 , G02B27/0025 , H04N5/2254
Abstract: An image lens assembly 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. The first lens element with negative refractive power has a convex object-side surface. The second lens element has positive refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has refractive power. The sixth lens element with positive refractive power is made of plastic material, wherein at least one surface of the sixth lens element is aspheric. The seventh lens element with negative refractive power made of plastic material has a concave image-side surface changing from concave at a paraxial region to convex at a peripheral region, and at least one surface thereof is 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，第五透镜元件，第六透镜元件和第七透镜元件 透镜元件 具有负屈光力的第一透镜元件具有凸起的物体侧表面。 第二透镜元件具有正的折光力。 第三透镜元件具有屈光力。 第四透镜元件具有屈光力。 第五透镜元件具有屈光力。 具有正折光力的第六透镜元件由塑料材料制成，其中第六透镜元件的至少一个表面是非球面的。 由塑料材料制成的具有负屈光力的第七透镜元件具有凹面图像侧表面，其在近轴区域处的凹面在外围区域处变为凸形，并且其至少一个表面是非球面的。
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Patent Agency Ranking
公开(公告)号：US20250168479A1
公开(公告)日：2025-05-22
申请号：US19032488
申请日：2025-01-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Heng-Yi SU , Ming-Ta CHOU , Wen-Yu TSAI
Abstract: An imaging lens assembly includes optical elements and a light path folding mechanism. The light path folding mechanism is disposed on the optical axis to fold an optical axis at least once, and includes a light folding element, a light blocking structure and a nanostructure layer. The light folding element includes a reflecting surface, an incident surface and an exit surface. The reflecting surface is configured to fold an incident light path towards an exit light path. The light blocking structure is disposed on at least one of the incident surface and the exit surface, and includes a main light blocking portion located on a peripheral portion closest to the optical axis on a cross section passing through the optical axis. The nanostructure layer is continuously distributed over at least one of the incident surface and the exit surface and the main light blocking portion.
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公开(公告)号：US20250116914A1
公开(公告)日：2025-04-10
申请号：US18987253
申请日：2024-12-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Heng-Yi SU , Chia-Cheng TSAI , Hao-Jan CHEN , Ming-Ta CHOU
IPC: G03B9/06
Abstract: An imaging lens assembly module includes an imaging lens assembly and a variable aperture module. The imaging lens assembly has an optical axis. The variable aperture module includes a light blocking sheet set, a fixed element, a movable element, and an annular light blocking portion. The light blocking sheet set includes at least two light blocking sheets, wherein the at least two light blocking sheets are mutually stacked along a circumferential direction surrounding the optical axis to form a variable aperture opening. The fixed element has a sidewall structure. The annular light blocking portion surrounds the optical axis to form a fixed aperture opening.
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公开(公告)号：US20240377560A1
公开(公告)日：2024-11-14
申请号：US18656296
申请日：2024-05-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Tang TSAI , Yu Chen LAI , Ming-Ta CHOU
Abstract: An imaging lens system includes a lens element and an aperture element surrounding an imaging optical path and forming an aperture. The aperture element includes a first conical surface, a second conical surface and a contact surface. The first and second conical surfaces surround the imaging optical path. The contact surface is perpendicular to the imaging optical path and contacts the lens element. When the imaging lens system is in a first environment condition, the first conical surface is in contact with the lens element, the second conical surface is spaced apart from the lens element, and the aperture is aligned with the optically effective region. When the imaging lens system is in a second environment condition, the second conical surface is in contact with the lens element, the first conical surface is spaced apart from the lens element, and the aperture is aligned with the optically effective region.
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公开(公告)号：US20240310699A1
公开(公告)日：2024-09-19
申请号：US18672360
申请日：2024-05-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Tang TSAI , Ming-Ta CHOU
CPC classification number: G03B17/12 , G02B7/021 , G02B13/0055 , G03B30/00 , H04N23/55
Abstract: A camera module includes an imaging lens assembly and an image sensor, wherein the image sensor is located on an image side of the imaging lens assembly. The imaging lens assembly has an optical axis and includes a plastic lens barrel and a plurality of plastic lens elements, wherein the plastic lens elements are disposed in the plastic lens barrel. The plastic lens barrel includes an object-side outer surface, a lens barrel minimum opening, an object-side outer inclined surface and a reversing inclined surface. The object-side outer surface is a surface of the plastic lens barrel facing towards an object side being closest to the object side and is annular. The reversing inclined surface expands from the lens barrel minimum opening to the image side, wherein a connecting position of the reversing inclined surface and the object-side outer inclined surface forms the lens barrel minimum opening.
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公开(公告)号：US20240280784A1
公开(公告)日：2024-08-22
申请号：US18650714
申请日：2024-04-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin-An CHANG , Ming-Ta CHOU , Shu-Yun YANG , Cheng-Feng LIN , Hsiang-Chi TANG
Abstract: An imaging lens assembly module includes an imaging lens element set, a lens carrier and a light blocking structure. The imaging lens element set has an optical axis. At least one lens element of the lens elements is disposed in the lens carrier. The light blocking structure includes a light blocking opening. The optical axis passes through the light blocking opening, and the light blocking opening includes at least two arc portions and a shrinking portion. Each of the arc portions has a first curvature radius for defining a maximum diameter of the light blocking opening. The shrinking portion is connected to the arc portions for forming the light blocking opening into a non-circular shape. The shrinking portion includes at least one protruding arc which extends and shrinks gradually from the shrinking portion to the optical axis, and the protruding arc has a second curvature radius.
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