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公开(公告)号：US12271053B2
公开(公告)日：2025-04-08
申请号：US17667113
申请日：2022-02-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Chun-Yen Chen , Meng-Kuan Cho
Abstract: An image capturing optical system includes four 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 and a fourth lens element. The first lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The second lens element has positive refractive power. The third lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The image capturing optical system further includes an aperture stop located between the second lens element and the third lens element.
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公开(公告)号：US12085696B2
公开(公告)日：2024-09-10
申请号：US18206572
申请日：2023-06-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai Tseng , Chun-Che Hsueh , Hung-Shuo Chen , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.
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公开(公告)号：US12019210B2
公开(公告)日：2024-06-25
申请号：US17488506
申请日：2021-09-29
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Hsin-Hsuan Huang
CPC classification number: G02B13/0035
Abstract: An optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element and a third lens element. The first lens element with positive refractive power has an object-side surface being convex, and the object-side surface and an image-side surface thereof are aspheric. The second lens element with negative refractive power has an image-side surface being concave, and an object-side surface and the image-side surface thereof are aspheric. The third lens element with refractive power has an object-side surface being concave, and the object-side surface and an image-side surface thereof are aspheric. The optical lens assembly further includes a stop with no lens element having refractive power disposed between the stop and the first lens element. The optical lens assembly has a total of three lens elements with refractive power.
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公开(公告)号：US11782248B2
公开(公告)日：2023-10-10
申请号：US17722460
申请日：2022-04-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Yen Chen , Chun-Che Hsueh , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B7/09 , G02B9/64 , G02B13/18 , G02B27/646
Abstract: An 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 fifth lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The sixth lens element 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 object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface thereof includes at least one convex shape in an off-axis region thereof.
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公开(公告)号：US11709345B2
公开(公告)日：2023-07-25
申请号：US17403618
申请日：2021-08-16
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai Tseng , Chun-Che Hsueh , Hung-Shuo Chen , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An optical lens assembly includes seven lens elements which are, in order from object side to image side: first lens element, second lens element, third lens element, fourth lens element, fifth lens element, sixth lens element and seventh lens element. The first lens element has object-side surface having at least one convex shape in off-axis region thereof. The second lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The third lens element has image-side surface being convex in paraxial region thereof. The sixth lens element with positive refractive power has object-side surface being convex in paraxial region thereof. The seventh lens element has image-side surface being concave in paraxial region thereof, and the image-side surface of the seventh lens element has at least one convex critical point in off-axis region thereof. The optical lens assembly has a total of seven lens elements.
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Patent Agency Ranking
公开(公告)号：US11670109B2
公开(公告)日：2023-06-06
申请号：US17738999
申请日：2022-05-06
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Hsiang-Chi Tang , Tsung-Han Tsai , Fuh-Shyang Yang
CPC classification number: G06V40/1318 , G06F3/0421 , H10K39/32
Abstract: An optical fingerprint identification system includes a cover, a light emitting layer, an optical layer, an image sensor and a base that are sequentially disposed from top to bottom. The cover has a fingerprint contact surface on top. The image sensor has an image surface. The optical layer includes a first array layer and a second array layer, and the first array layer is stacked on top of the second array layer. The first array layer and the second array layer respectively include a plurality of first array lens elements and a plurality of second array lens elements respectively arranged at equal intervals in a first direction. Each of the first array lens elements and a corresponding second array lens element of the second array layer are coaxial along an optical axis and form an imaging unit.
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公开(公告)号：US11327277B2
公开(公告)日：2022-05-10
申请号：US16734134
申请日：2020-01-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Hsin-Hsuan Huang
Abstract: A lens system includes four 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 and a fourth lens element. Each of the four lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one of the object-side surface and the image-side surface of the first lens element has at least one inflection point. The fourth lens element has positive refractive power, the object-side surface of the fourth lens element is convex in a paraxial region thereof, and at least one of the object-side surface and the image-side surface of the fourth lens element has at least one inflection point.
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公开(公告)号：US11194128B2
公开(公告)日：2021-12-07
申请号：US16507281
申请日：2019-07-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Wei-Yu Chen
Abstract: A photographing optical lens assembly includes seven lens elements, the seven 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 and a seventh lens element. The third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The fourth lens element has an image-side surface being concave in a paraxial region thereof. The sixth lens element with positive refractive power has an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof. The seventh lens element has an image-side surface being concave in a paraxial region thereof and having at least one critical point in an off-axis region thereof.
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公开(公告)号：US10928609B2
公开(公告)日：2021-02-23
申请号：US16269839
申请日：2019-02-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che Hsueh , Shu-Yun Yang
Abstract: The present disclosure provides an optical imaging lens assembly comprising, in order from an object side to an image side: a first lens element having negative refractive power; a second lens element with negative refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof; a third lens element having positive refractive power; a fourth lens element having positive refractive power; a fifth lens element having positive refractive power; and a sixth lens element; wherein the optical imaging lens assembly has a total of six lens elements. With such configuration, the optical imaging lens assembly of the present disclosure is characterized by a wide field of view, a compact size and high image quality.
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公开(公告)号：US20190187437A1
公开(公告)日：2019-06-20
申请号：US16268820
申请日：2019-02-06
Applicant: Largan Precision Co., Ltd.
Inventor： Chun-Che Hsueh , Wei-Yu Chen
CPC classification number: G02B13/0045 , G02B3/04 , G02B9/62 , G02B13/06 , G02B13/18
Abstract: A image capturing lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side: a first lens element with positive refractive power having an object-side surface being convex thereof; a second lens element having negative refractive power; a third lens element; a fourth lens element; a fifth lens element with positive refractive power having an object-side surface being convex and an image-side surface being convex thereof; and a sixth lens element having an image-side surface being concave in a paraxial region thereof, the image-side surface having at least one convex critical point in an off-axial region thereof, and an object-side surface and the image-side surface being aspheric.
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