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公开(公告)号：US10353179B2
公开(公告)日：2019-07-16
申请号：US15849616
申请日：2017-12-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen , Tsung-Han Tsai , Ming-Ta Chou
Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.
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公开(公告)号：US10185128B2
公开(公告)日：2019-01-22
申请号：US15646978
申请日：2017-07-11
Applicant: LARGAN Precision Co., Ltd.
Inventor： Chun-Che Hsueh , Wei-Yu Chen , Chun-Shan Chen , Hsuan-Chin Huang , Kuan-Ting Yeh
Abstract: An optical photographing lens assembly includes five lens elements, 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 in a paraxial region thereof. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface in a paraxial region thereof. The fourth lens element with positive refractive power has a convex image-side surface in a paraxial region thereof. The fifth lens element with negative refractive power has a concave image-side surface in a paraxial region thereof, wherein the image-side surface of the fifth lens element has at least one convex critical point in an off-axial region thereof, and two surfaces of the fifth lens element are both aspheric.
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公开(公告)号：US09915808B2
公开(公告)日：2018-03-13
申请号：US15377947
申请日：2016-12-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen , Tsung-Han Tsai , Ming-Ta Chou
CPC classification number: G02B13/0045 , G02B5/005 , G02B5/208 , G02B9/62 , G02B27/0025
Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.
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公开(公告)号：US09897783B2
公开(公告)日：2018-02-20
申请号：US15377944
申请日：2016-12-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen , Tsung-Han Tsai , Ming-Ta Chou
CPC classification number: G02B13/0045 , G02B5/005 , G02B5/208 , G02B9/62 , G02B27/0025
Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.
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公开(公告)号：US09784948B2
公开(公告)日：2017-10-10
申请号：US15067369
申请日：2016-03-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen
CPC classification number: G02B13/0045 , G02B3/04 , G02B9/60 , G02B13/18 , G02B27/0025 , H04N5/225 , H04N5/2253 , H04N5/2254
Abstract: An imaging lens system comprises, in order from an object side to an image side: a first lens element with positive refractive power having a convex object-side surface; a second lens element with refractive power; a third lens element with refractive power having object-side and image-side surfaces being aspheric, at least one surface thereof having at least one inflection point; a fourth lens element with refractive power having a concave object-side surface and a convex image-side surface; a fifth lens element with refractive power having an aspheric object-side surface and an aspheric concave image-side surface, the image-side surface thereof having at least one inflection point.
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Patent Agency Ranking
公开(公告)号：US09726860B2
公开(公告)日：2017-08-08
申请号：US14838379
申请日：2015-08-28
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen , Tsung-Han Tsai , Ming-Ta Chou
CPC classification number: G02B13/0045 , G02B5/005 , G02B5/208 , G02B9/62 , G02B27/0025
Abstract: An optical image 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 positive refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has refractive power. The fifth lens element with refractive power has an image-side surface being convex in a paraxial region thereof, wherein at least one surface of the fifth lens element is aspheric. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region thereof, wherein at least one surface of the sixth lens element is aspheric, and the image-side surface of the sixth lens element has at least one inflection point thereon.
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公开(公告)号：US09435984B2
公开(公告)日：2016-09-06
申请号：US14508810
申请日：2014-10-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen
CPC classification number: G02B13/0045 , G02B3/04 , G02B9/60 , G02B13/18 , G02B27/0025 , H04N5/225 , H04N5/2253 , H04N5/2254
Abstract: This invention provides an imaging lens system including, in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface; a second lens with negative refractive power; a third lens having a concave image-side surface; a fourth lens with positive refractive power; a fifth lens with negative refractive power having a concave image-side surface, at least one surface thereof having at least one inflection point; and an aperture stop disposed between an imaged object and the third lens. The on-axis spacing between the first lens and second lens is T12, the focal length of the imaging lens system is f, and they satisfy the relation: 0.5
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公开(公告)号：US09417435B2
公开(公告)日：2016-08-16
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.
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公开(公告)号：US08922914B2
公开(公告)日：2014-12-30
申请号：US13763077
申请日：2013-02-08
Applicant: Largan Precision Co., Ltd.
Inventor： Chun-Shan Chen , Dung-Yi Hsieh , Lin-Yao Liao , Wei-Yu Chen
CPC classification number: G02B9/34 , G02B13/004 , G02B13/18
Abstract: An image capturing lens system includes four lens elements with refractive power, in order from an object side to an image side, a first lens element, a second lens element, a third lens element and a fourth lens element. The positive first lens element has a convex object-side surface at a paraxial region. The negative second lens element has a concave object-side surface at a paraxial region and an image-side surface changing from concave at a paraxial region to convex at a peripheral region, wherein the surfaces of the second lens element are aspheric. The positive third lens element has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region. The negative fourth lens element has an image-side surface changing from concave at a paraxial region to convex at a peripheral region, and the surfaces of the fourth lens element are aspheric.
Abstract translation: 图像拍摄透镜系统包括从物体侧到像侧依次具有屈光力的四个透镜元件，第一透镜元件，第二透镜元件，第三透镜元件和第四透镜元件。 正的第一透镜元件在近轴区域具有凸起的物体侧表面。 负的第二透镜元件在近轴区域具有凹入的物体侧表面，并且图像侧表面在近轴区域处的凹陷在周边区域处变为凸起，其中第二透镜元件的表面是非球面的。 正极第三透镜元件在近轴区域处具有凹入物侧表面，在近轴区域具有凸形图像侧表面。 负第四透镜元件具有从近轴区域的凹陷到外围区域的凸形的图像侧表面，并且第四透镜元件的表面是非球面的。
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公开(公告)号：US20130215522A1
公开(公告)日：2013-08-22
申请号：US13848156
申请日：2013-03-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Shan Chen
IPC: G02B13/00
CPC classification number: G02B13/0045 , G02B3/04 , G02B9/60 , G02B13/18 , G02B27/0025 , H04N5/225 , H04N5/2253 , H04N5/2254
Abstract: This invention provides an imaging lens system including, in order from an object side to an image side: a first lens with positive refractive power having a convex object-side surface; a second lens with negative refractive power; a third lens having a concave image-side surface; a fourth lens with positive refractive power; a fifth lens with negative refractive power having a concave image-side surface, at least one surface thereof having at least one inflection point; and an aperture stop disposed between an imaged object and the third lens. The on-axis spacing between the first lens and second lens is T12, the focal length of the imaging lens system is f, and they satisfy the relation: 0.5
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