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公开(公告)号：US20220011651A1
公开(公告)日：2022-01-13
申请号：US17487025
申请日：2021-09-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ming CHEN , Hsiang-Chi TANG , Lin-An CHANG , Cheng-Chen LIN , Ming-Ta CHOU
Abstract: An imaging lens assembly module has an optical axis, and includes a lens barrel and an optical element set. The lens barrel includes an object-side portion, a tubular portion and a tip-end minimal aperture. The object-side portion includes a first assembling surface. The tubular portion includes a plurality of second assembling surfaces. The optical element set includes at least one light blocking sheet and at least one optical lens element. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The optical lens element includes an optical effective portion and a peripheral portion. The object-side portion of the lens barrel includes a first reversing inclined surface gradually enlarged from the tip-end minimal aperture to the image side of the lens barrel, and the first reversing inclined surface is not contacted with the optical element set.
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公开(公告)号：US20210364725A1
公开(公告)日：2021-11-25
申请号：US17203926
申请日：2021-03-17
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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公开(公告)号：US20210124153A1
公开(公告)日：2021-04-29
申请号：US17140149
申请日：2021-01-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Tsung-Han TSAI , Hsin-Hsuan HUANG
Abstract: An image capturing optical 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 positive refractive power has a convex object-side surface. The second lens element has refractive power. The third lens element with refractive power has a concave image-side surface. The fourth lens element has refractive power, and at least one surface thereof is aspheric. The fifth lens element with negative refractive power has a concave object-side surface and a convex image-side surface, and the surfaces thereof are aspheric. The sixth lens element with refractive power has a convex object-side surface, and an image-side surface changing from concave at a paraxial region thereof to convex at a peripheral region thereof, and the surfaces are aspheric.
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公开(公告)号：US20210088752A1
公开(公告)日：2021-03-25
申请号：US16924496
申请日：2020-07-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Lin-An CHANG , Ming-Ta CHOU
Abstract: An imaging lens assembly includes a plastic lens barrel, an optical lens element set and a light-absorbing layer. The plastic lens barrel includes a minimum opening. The optical lens element set includes a plurality of optical lens elements, wherein the optical lens elements includes a first optical lens element closest to an object side of the optical lens element set, and the first optical lens element includes an effective optical surface, a peripheral surface and an annular step structure. At least one portion of the light-absorbing layer is coated on the annular step structure, and at least another one portion of the light-absorbing layer is connected to the minimum opening of the plastic lens barrel. The light-absorbing layer is for retaining the first optical lens element on the plastic lens barrel.
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Patent Agency Ranking
公开(公告)号：US20210026225A1
公开(公告)日：2021-01-28
申请号：US16851147
申请日：2020-04-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ming CHEN , Hsiang-Chi TANG , Lin-An CHANG , Cheng-Chen LIN , Ming-Ta CHOU
Abstract: An imaging lens assembly module has an optical axis, and includes a lens barrel and an optical element set. The lens barrel includes an object-side portion, a tubular portion and a tip-end minimal aperture. The object-side portion includes a first assembling surface. The tubular portion includes a plurality of second assembling surfaces. The optical element set includes at least one light blocking sheet and at least one optical lens element. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The optical lens element includes an optical effective portion and a peripheral portion. The object-side portion of the lens barrel includes a first reversing inclined surface gradually enlarged from the tip-end minimal aperture to the image side of the lens barrel, and the first reversing inclined surface is not contacted with the optical element set.
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56.发明申请公开(公告)号：US20190196132A1
公开(公告)日：2019-06-27
申请号：US16180112
申请日：2018-11-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Ming-Ta CHOU , Ruei-Yang LUO
Abstract: An imaging lens assembly has an optical axis and includes a plastic barrel, a lens set and a retaining element. The plastic barrel includes a first channel and a second channel. The lens set is disposed in the plastic barrel and includes at least one adjustable lens element, wherein an outer diameter surface of the adjustable lens element includes a plurality of axial rotation structures, each of the axial rotation structures is in a protruding strip shape, and at least one of the axial rotation structures is disposed correspondingly to the second channel of the plastic barrel and exposed. The retaining element is disposed in the plastic barrel and includes an anti-releasing structure, which is disposed correspondingly to the first channel of the plastic barrel to avoid the lens set being released from the plastic barrel.
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公开(公告)号：US20190004285A1
公开(公告)日：2019-01-03
申请号：US15816897
申请日：2017-11-17
Applicant: LARGAN Precision Co., Ltd.
Inventor： Hsiang-Chi TANG , Cheng-Chen LIN , Chun-Yen CHEN , Yu-Tai TSENG , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/64
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, 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 seventh lens element has an image-side surface being concave in a paraxial region thereof. The image-side surface of the seventh lens element has 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. At least one of an image-side surface of the fourth lens element and an image-side surface of the fifth lens element has at least one inflection point.
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公开(公告)号：US20170097494A1
公开(公告)日：2017-04-06
申请号：US15379242
申请日：2016-12-14
Applicant: LARGAN Precision Co., Ltd.
Inventor： Hsiang-Chi TANG , Ming-Ta CHOU
CPC classification number: G02B9/60 , G02B5/208 , G02B13/0045 , G02B13/18 , G02B27/0025
Abstract: A photographing optical lens assembly includes five lens elements with refractive power, in order from an object side to an image side. The first lens element with refractive power has a convex object-side surface. The second lens element with positive refractive power has an object-side surface and an image-side surface both being aspheric. The third lens element has positive refractive power. The fourth lens element with refractive power has a concave object-side surface. The fifth lens element with refractive power has an object-side surface and a concave image-side surface with at least one inflection point, both the object-side surface and the image-side surface being aspheric.
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公开(公告)号：US20150160440A1
公开(公告)日：2015-06-11
申请号：US14628000
申请日：2015-02-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Ming-Ta CHOU
CPC classification number: G02B9/60 , G02B5/208 , G02B13/0045 , G02B13/18 , G02B27/0025
Abstract: A photographing optical lens assembly includes five lens elements with refractive power, in order from an object side to an image side. The first lens element with refractive power has a convex object-side surface. The second lens element with positive refractive power has an object-side surface and an image-side surface both being aspheric. The third lens element has positive refractive power. The fourth lens element with refractive power has a concave object-side surface. The fifth lens element with refractive power has an object-side surface and a concave image-side surface with at least one inflection point, both the object-side surface and the image-side surface being aspheric.
Abstract translation: 拍摄光学透镜组件包括从物体侧到像侧的依次具有屈光力的五个透镜元件。 具有屈光力的第一透镜元件具有凸起的物体侧表面。 具有正折射力的第二透镜元件具有非球面的物体侧表面和图像侧表面。 第三透镜元件具有正的折光力。 具有屈光力的第四透镜元件具有凹入的物体侧表面。 具有屈光力的第五透镜元件具有物体侧表面和具有至少一个拐点的凹形图像侧表面，物体侧表面和图像侧表面都是非球面的。
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