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公开(公告)号：US10007086B2
公开(公告)日：2018-06-26
申请号：US15045344
申请日：2016-02-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tung-Yi Hsieh , Hsuan-Chin Huang , Wei-Yu Chen
CPC classification number: G02B9/64 , G02B13/0045 , G02B13/04 , G02B27/0025 , G02B27/0081
Abstract: An image capturing optical lens assembly includes, in order from an object side to an image side, a front lens group, an aperture stop and a rear lens group. The front lens group includes at least two lens elements, wherein one lens element closest to an imaged object of the at least two lens elements has negative refractive power and an image-side surface being concave. The rear lens group includes at least four lens elements, wherein one lens element closest to an image surface of the at least four lens elements has an image-side surface being concave. The image capturing optical lens assembly has a total of eight lens elements.
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公开(公告)号：US11409075B2
公开(公告)日：2022-08-09
申请号：US16674255
申请日：2019-11-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin Huang , Hsiang-Chi Tang , Ming-Ta Chou
Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.
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Patent Agency Ranking
公开(公告)号：US11333864B2
公开(公告)日：2022-05-17
申请号：US16674244
申请日：2019-11-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin Huang , Hsiang-Chi Tang , Ming-Ta Chou
Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.
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公开(公告)号：US12204075B2
公开(公告)日：2025-01-21
申请号：US17517474
申请日：2021-11-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin Huang , Lin An Chang , Ming-Ta Chou , Chun-Hua Tsai
Abstract: An imaging lens system includes a lens barrel element and an imaging lens assembly disposed on the lens barrel element and including a first imaging lens element, a spacer element and a second imaging lens element. The spacer element has a second object-side contact surface corresponding to a first image-side contact surface of the first imaging lens element. The second imaging lens element has a third object-side contact surface corresponding to a second image-side contact surface of the spacer element. The lens barrel element and the spacer element form a buffer structure closer to an optical axis than the first image-side contact surface and including a first gap and a second gap located closer to the optical axis than the first gap. The first gap overlaps the third object-side contact surface in a direction parallel to the optical axis. A step difference is between the first and second gaps.
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公开(公告)号：US20170192200A1
公开(公告)日：2017-07-06
申请号：US15045344
申请日：2016-02-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tung-Yi Hsieh , Hsuan-Chin Huang , Wei-Yu Chen
CPC classification number: G02B9/64 , G02B13/0045 , G02B13/04 , G02B27/0025 , G02B27/0081
Abstract: An image capturing optical lens assembly includes, in order from an object side to an image side, a front lens group, an aperture stop and a rear lens group. The front lens group includes at least two lens elements, wherein one lens element closest to an imaged object of the at least two lens elements has negative refractive power and an image-side surface being concave. The rear lens group includes at least four lens elements, wherein one lens element closest to an image surface of the at least four lens elements has an image-side surface being concave. The image capturing optical lens assembly has a total of eight lens elements.
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公开(公告)号：US11822149B2
公开(公告)日：2023-11-21
申请号：US17810628
申请日：2022-07-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin Huang , Hsiang-Chi Tang , Ming-Ta Chou
CPC classification number: G02B9/04 , G02B1/041 , G02B13/006 , H04M1/0266
Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.
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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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