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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:US10859801B2
公开(公告)日:2020-12-08
申请号:US15710966
申请日:2017-09-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Chien-Hsun Wu , Tzu-Chieh Kuo
Abstract: An optical image capturing system includes five lens elements, the five lens elements being, in order from an object side to an image side: a first lens element; a second lens element having positive refractive power; a third lens element having positive refractive power; a fourth lens element; and a fifth lens element having an image-side surface being concave in a paraxial region thereof and at least one convex critical point in an off-axis region of the image-side surface thereof.
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公开(公告)号:US10670837B2
公开(公告)日:2020-06-02
申请号:US15843112
申请日:2017-12-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Tzu-Chieh Kuo
Abstract: An optical image capturing 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. The second lens element has negative refractive power. The sixth lens element has an object-side surface and an image-side surface being both aspheric. At least one of object-side surfaces and image-side surfaces of the fifth lens element and the sixth lens element includes at least one critical point in an off-axial region thereof.
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公开(公告)号:US10379322B2
公开(公告)日:2019-08-13
申请号:US15628992
申请日:2017-06-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Chien-Hsun Wu , Tzu-Chieh Kuo , Kuan-Ming Chen
Abstract: An optical imaging system includes five lens elements, the five lens elements being, in order from an object side to an image side: a first lens element having positive refractive power; a second lens element having negative refractive power; a third lens element having positive refractive power; a fourth lens element having positive refractive power; and a fifth lens element having negative refractive power.
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公开(公告)号:US10209488B2
公开(公告)日:2019-02-19
申请号:US15631994
申请日:2017-06-23
Applicant: LARGAN Precision Co., Ltd.
Inventor: Yu-Tai Tseng , Chun-Che Hsueh , Tzu-Chieh Kuo
Abstract: An optical 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 has an object-side surface being concave in a paraxial region thereof. 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 has negative refractive power.
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公开(公告)号:US12169265B2
公开(公告)日:2024-12-17
申请号:US17079068
申请日:2020-10-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Tzu-Chieh Kuo , Wei-Yu Chen
Abstract: A photographing optical lens system 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 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 convex in a paraxial region thereof. The seventh lens element has negative refractive power. The object-side surface of the seventh lens element is concave in a paraxial region thereof. At least one of all lens surfaces of the seven lens elements is aspheric and has at least one inflection point.
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公开(公告)号:US12099257B2
公开(公告)日:2024-09-24
申请号:US17537870
申请日:2021-11-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Jin Sen Wang , Kuo-Jui Wang , Kuan-Ting Yeh , Tzu-Chieh Kuo
IPC: G02B9/64 , G02B13/00 , H01L27/146
CPC classification number: G02B9/64 , G02B13/0045 , H01L27/14627
Abstract: An optical photographing system includes seven lens elements which are, in order from an object side to an image side along an optical path: 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 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 sixth lens element is convex in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the optical photographing system has at least one inflection point.
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公开(公告)号:US12044829B2
公开(公告)日:2024-07-23
申请号:US17230161
申请日:2021-04-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuo-Jui Wang , Tzu-Chieh Kuo
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An image capturing lens assembly includes seven lens elements, which are, in order from an object side to an image side along an optical path, 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 has an object-side surface towards the object side and an image-side surface towards the image side. The second lens element with positive refractive power has the object-side surface being convex in a paraxial region thereof. The fourth lens element with positive refractive power has the image-side surface being convex in a paraxial region thereof. The sixth lens element has positive refractive power. The seventh lens element has the image-side surface being concave in a paraxial region thereof.
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公开(公告)号:US12032225B2
公开(公告)日:2024-07-09
申请号:US17244606
申请日:2021-04-29
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Tzu-Chieh Kuo
Abstract: An optical imaging lens assembly includes eight lens elements which are, in order from an object side to an image side along an optical path: a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element, a seventh lens element and an eighth lens element. The first lens element has an object-side surface being concave in a paraxial region thereof and having at least one inflection point in an off-axis region thereof. The seventh lens element has negative refractive power. The eighth lens element has an image-side surface being concave in a paraxial region thereof and having at least one inflection point in an off-axis region thereof. At least one lens surface of at least one of the second to seventh lens elements is aspheric.
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公开(公告)号:US11709346B2
公开(公告)日:2023-07-25
申请号:US17522060
申请日:2021-11-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Chien-Hsun Wu , Tzu-Chieh Kuo , Kuan-Ming Chen
CPC classification number: G02B13/0045 , G02B13/02 , G02B13/146 , G02B9/60 , G02B13/18
Abstract: An optical imaging system includes five lens elements, the five lens elements being, in order from an object side to an image side: a first lens element having positive refractive power; a second lens element having negative refractive power; a third lens element having positive refractive power; a fourth lens element having positive refractive power; and a fifth lens element having negative refractive power.
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