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公开(公告)号：US20210356708A1
公开(公告)日：2021-11-18
申请号：US17380797
申请日：2021-07-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Tzu-Chieh KUO
Abstract: An optical imaging lens assembly includes three lens elements which are, in order from an object side to an image side: a first lens element, a second lens element and a third lens element. Each of the three 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 concave in a paraxial region thereof. The object-side surface of the first lens element is aspheric and has at least one inflection point. The object-side surface of the first lens element has at least one critical point in an off-axis region thereof. The optical imaging lens assembly has a total of three lens elements.
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公开(公告)号：US20210349287A1
公开(公告)日：2021-11-11
申请号：US17111573
申请日：2020-12-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting YEH , Tzu-Chieh KUO
Abstract: An image capturing optical lens assembly includes three lens elements, the three lens elements being, in order from an object side to an image side along an optical path, a first lens element, a second lens element and a third lens element. Each of the three lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The second lens element has negative refractive power. The object-side surface of the third lens element is concave in a paraxial region thereof, and the image-side surface of the third lens element is convex in a paraxial region thereof. The image capturing optical lens assembly has a total of three lens elements.
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公开(公告)号：US20210302700A1
公开(公告)日：2021-09-30
申请号：US17038066
申请日：2020-09-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chung-Yu WEI , Wen-Yao YANG , Yi-Hsiang CHUANG , Tzu-Chieh KUO
Abstract: An imaging optical lens assembly includes five 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 and a fifth lens element. Each of the five lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The third lens element has positive refractive power. At least one of the object-side surface and the image-side surface of at least one of the five lens elements includes at least one critical point in an off-axis region thereof.
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公开(公告)号：US20210096333A1
公开(公告)日：2021-04-01
申请号：US17118435
申请日：2020-12-10
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：US20210041674A1
公开(公告)日：2021-02-11
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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Patent Agency Ranking
公开(公告)号：US20210018724A1
公开(公告)日：2021-01-21
申请号：US16557692
申请日：2019-08-30
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Po-Lun HSU , Tzu-Chieh KUO
Abstract: An optical imaging lens assembly includes a focus tunable component and an imaging lens system. The imaging lens system includes, in order from an object side to an image side, a first lens group and a second lens group. The first lens group includes, in order from the object side to the image side, an object-side first lens element and an object-side second lens element. The second lens group includes, in order from the image side to the object side, an image-side first lens element and an image-side second lens element. At least one lens surface of at least one lens element in the imaging lens system is aspheric and has at least one inflection point. The imaging lens system has a total of at least four lens elements.
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公开(公告)号：US20200096733A1
公开(公告)日：2020-03-26
申请号：US16183217
申请日：2018-11-07
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Kuo-Jui WANG , Yu-Tai TSENG , Tzu-Chieh KUO
Abstract: A photographing optical 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. Each of the five lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The second lens element has negative refractive power. The fifth lens element has negative refractive power. At least one of the five lens elements has at least one aspheric surface having at least one inflection point.
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公开(公告)号：US20200012078A1
公开(公告)日：2020-01-09
申请号：US16382648
申请日：2019-04-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Tzu-Chieh KUO
Abstract: A photographing optical lens assembly includes eight lens elements, the eight 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, a sixth lens element, a seventh lens element and an eighth lens element. Each of the eight lens elements has an object-side surface facing towards the object side and an image-side surface facing towards the image side. At least one surface of the object-side surface and the image-side surface of at least one lens element of the photographing optical lens assembly is aspheric and includes at least one inflection point.
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公开(公告)号：US20190227268A1
公开(公告)日：2019-07-25
申请号：US16035946
申请日：2018-07-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hung-Shuo CHEN , Tzu-Chieh KUO
IPC: G02B13/00 , G02B9/34 , H04N13/254 , H04N13/207
Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements. The four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being concave in a paraxial region thereof and an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being convex in a paraxial region thereof.
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公开(公告)号：US20190196144A1
公开(公告)日：2019-06-27
申请号：US15870806
申请日：2018-01-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hung-Shuo CHEN , Tzu-Chieh KUO
CPC classification number: G02B9/64 , G02B13/0045 , G02B27/0025
Abstract: An imaging 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 second lens element has positive refractive power. The third lens element has negative refractive power. At least one surface among the object-side surfaces and the image-side surfaces of the seven lens elements has at least one critical point in an off-axis region thereof.
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