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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：US20200285030A1
公开(公告)日：2020-09-10
申请号：US16880858
申请日：2020-05-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , Cheng-Chen LIN , Chun-Yen CHEN , Yu-Tai TSENG , Wei-Yu CHEN
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：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：US20180341086A1
公开(公告)日：2018-11-29
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
CPC classification number: G02B13/0045 , G02B9/60 , G02B13/146 , G02B13/18
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：US20180143405A1
公开(公告)日：2018-05-24
申请号：US15484532
申请日：2017-04-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Yu-Tai TSENG , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B7/08 , G02B9/62 , G02B27/646 , G02B2027/0138
Abstract: A photographing optical lens system includes six 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 and a sixth lens element. The first lens element has positive refractive power. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The third lens element has an image-side surface being concave in a paraxial region thereof. The fourth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The sixth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof.
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Patent Agency Ranking
公开(公告)号：US20170248770A1
公开(公告)日：2017-08-31
申请号：US15201326
申请日：2016-07-01
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chun-Yen CHEN , Yu-Tai TSENG , Wei-Yu CHEN , Chun-Che HSUEH
CPC classification number: G02B13/0045 , G02B3/04 , G02B5/005 , G02B9/62 , G02B13/002 , G02B13/18 , G02B27/0025
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, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has an object-side surface being convex. The second lens element has negative refractive power. At least one of two surfaces of the fourth lens element has at least one inflection point, and the two surfaces thereof are aspheric. The fifth lens element has an object-side surface being convex and an image-side surface having at least one inflection point, and the two surfaces thereof are aspheric. The sixth lens element has an image-side surface being concave, wherein the image-side surface of the sixth lens element has at least one convex shape in off-axial region, and the two surfaces thereof are aspheric.
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公开(公告)号：US20240402467A1
公开(公告)日：2024-12-05
申请号：US18800845
申请日：2024-08-12
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Hsin-Hsuan HUANG , Meng-Kuan CHO
Abstract: An optical imaging lens system includes ten 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, an eighth lens element, a ninth lens element and a tenth lens element. Each of the ten 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 positive refractive power. The image-side surface of the tenth lens element is concave in a paraxial region thereof, and the image-side surface of the tenth lens element has at least one inflection point.
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公开(公告)号：US20240337815A1
公开(公告)日：2024-10-10
申请号：US18746521
申请日：2024-06-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Chen LIN , Yu-Tai TSENG , Wei-Yu CHEN
CPC classification number: G02B9/64 , G02B13/0045
Abstract: A photographing lens assembly includes eight 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, a seventh lens element and an eighth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof. The sixth lens element has 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 eighth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, and the image-side surface of the eighth lens element has at least one critical point in an off-axis region thereof.
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公开(公告)号：US20240255736A1
公开(公告)日：2024-08-01
申请号：US18630059
申请日：2024-04-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Yu-Tai TSENG , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/04 , G02B27/0025
Abstract: An optical photographing 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 an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fourth lens element has an object-side surface being concave in a paraxial region thereof. The fifth lens element with positive refractive power has two surfaces being both aspheric. The sixth lens element has an image-side surface being concave in a paraxial region thereof, wherein the surfaces of the sixth lens element are both aspheric, and the image-side surface of the sixth lens element includes at least one convex shape in an off-axial region thereof.
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公开(公告)号：US20240248285A1
公开(公告)日：2024-07-25
申请号：US18594059
申请日：2024-03-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Tzu-Chieh KUO
CPC classification number: G02B13/0045 , G02B9/64
Abstract: A photographing optical 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. Each of the eight lens elements has an object-side surface towards the object side and an image-side surface towards the image side. The first lens element has positive refractive power. The object-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof. The object-side surface of the seventh lens element is convex in a paraxial region thereof. The image-side surface of the eighth lens element is concave in a paraxial region thereof.
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