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公开(公告)号：US11662596B2
公开(公告)日：2023-05-30
申请号：US17672783
申请日：2022-02-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi Tang , Cheng-Chen Lin , Ming-Ta Chou
CPC classification number: G02B27/0955 , G02B7/021 , G02B7/022 , G02B9/34 , G02B9/60 , G02B13/0045 , H04N23/55
Abstract: An imaging lens assembly includes a plastic barrel and an imaging lens set. The plastic barrel includes an object-side aperture and a first annular surface. The imaging lens set includes a plurality of optical elements, wherein at least one of the optical elements is a plastic lens element, and the plastic lens element includes an effective optical portion, a peripheral portion, a second annular surface, and an object-side connecting surface. The peripheral portion is formed around the effective optical portion. The second annular surface is formed on an object-side surface of the plastic lens element and surrounds the effective optical portion. The object-side connecting surface is formed on the object-side surface of the plastic lens element and surrounds the effective optical portion, and the object-side connecting surface is connected with one of the optical elements disposed on an object side of the plastic lens element.
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公开(公告)号：US10895718B2
公开(公告)日：2021-01-19
申请号：US16297199
申请日：2019-03-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Yu-Tai Tseng , Tzu-Chieh Kuo
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. Each of the seven lens elements of the optical photographing lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the first lens element is concave in a paraxial region thereof. The object-side surface of the first lens element is aspheric and has at least one critical point in an off-axis region thereof.
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公开(公告)号：US10247924B2
公开(公告)日：2019-04-02
申请号：US15974005
申请日：2018-05-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Chun-Yen Chen , Wei-Yu Chen
Abstract: An imaging optical lens system 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 third lens element has an image-side surface being concave in a paraxial region thereof. The fifth lens element has an object-side surface and an image-side surface being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex critical point in an off-axial region thereof.
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公开(公告)号：US10185125B2
公开(公告)日：2019-01-22
申请号：US15470502
申请日：2017-03-27
Applicant: LARGAN Precision Co., Ltd.
Inventor： Cheng-Chen Lin , Chun-Yen Chen , Yu-Tai Tseng , Hung-Shuo Chen , Wei-Yu Chen
Abstract: A photographing optical lens system includes five 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 and a fifth lens element. The second lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface thereof has at least one convex critical point in an off-axial region thereof, the object-side surface and the image-side surface thereof are aspheric.
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公开(公告)号：US10073248B2
公开(公告)日：2018-09-11
申请号：US15078030
申请日：2016-03-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Chun-Che Hsueh , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/06
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 fourth lens element with positive refractive power has an object-side surface and an image-side surface being both aspheric. 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, wherein two surfaces of the fifth lens element are aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof and comprising at least one convex shape in an off-axial region thereof, wherein two surfaces of the sixth lens element are aspheric.
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Patent Agency Ranking
公开(公告)号：US20180074295A1
公开(公告)日：2018-03-15
申请号：US15454007
申请日：2017-03-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Chun-Yen Chen , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B5/208 , G02B9/62
Abstract: An imaging optical lens system 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 third lens element has an image-side surface being concave in a paraxial region thereof. The fifth lens element has an object-side surface and an image-side surface being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein an object-side surface and the image-side surface of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex critical point in an off-axial region thereof.
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公开(公告)号：US09602731B2
公开(公告)日：2017-03-21
申请号：US14196621
申请日：2014-03-04
Applicant: LARGAN Precision Co., Ltd.
Inventor： Cheng-Chen Lin , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/04 , H04N5/23296
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, a fifth lens element, and a sixth lens element. The first lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. 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. The sixth lens element with 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 image capturing lens assembly has a total of six lens elements with refractive power.
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8.发明申请公开(公告)号：US20160091696A1
公开(公告)日：2016-03-31
申请号：US14531050
申请日：2014-11-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Wei-Yu Chen
CPC classification number: G02B13/18 , G02B13/0045 , H04N5/2254 , H04N5/374
Abstract: A photographing 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 and a fifth lens element. The first lens element with refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element with refractive power has a convex object-side surface and a concave image-side surface. The fourth lens element with refractive power has an object-side surface and an image-side surface being both aspheric. The fifth lens element with refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface thereof are aspheric, and the image-side surface of the fifth lens element has at least one convex shape in an off-axial region thereof. The photographing lens system has a total of five lens elements with refractive power.
Abstract translation: 拍摄透镜系统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。 第二透镜元件具有屈光力。 具有屈光力的第三透镜元件具有凸形物体侧表面和凹形图像侧表面。 具有屈光力的第四透镜元件具有物体侧表面和图像侧表面都是非球面的。 具有屈光力的第五透镜元件具有凹形图像侧表面，其中物体侧表面和其图像侧表面是非球面的，并且第五透镜元件的像侧表面具有至少一个凸形形状 其轴外区域。 摄影镜头系统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：US12181642B2
公开(公告)日：2024-12-31
申请号：US18399269
申请日：2023-12-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Wei-Yu Chen
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, a fifth lens element, and a sixth lens element. The first lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second and third lens elements have refractive power. 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. The sixth lens element with 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 image capturing lens assembly has a total of six lens elements with refractive power.
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公开(公告)号：US11914106B2
公开(公告)日：2024-02-27
申请号：US17011028
申请日：2020-09-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen Lin , Hsin-Hsuan Huang , Shu-Yun Yang
CPC classification number: G02B13/0045 , G02B5/00 , G02B13/0065 , G02B13/02 , G02B27/0025
Abstract: A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, 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 has an object-side surface being convex in a paraxial region thereof.
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