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公开(公告)号：US20230314771A1
公开(公告)日：2023-10-05
申请号：US17825681
申请日：2022-05-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Meng-Kuan CHO
CPC classification number: G02B13/0045 , G02B9/64
Abstract: An imaging lens system 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 facing toward the object side and an image-side surface facing toward the image side. The object-side surface of the third lens element is concave in a paraxial region thereof. When specific conditions are satisfied, the requirements of wide field of view, compact size and high image quality can be met by the imaging lens system, simultaneously.
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公开(公告)号：US20230305274A1
公开(公告)日：2023-09-28
申请号：US18205524
申请日：2023-06-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chien-Hsun WU , Chun-Che HSUEH , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/62 , G02B13/06
Abstract: An optical imaging lens assembly includes, in order from an object side to an image side: a first, a second, a third, a fourth, a fifth and a sixth lens elements. The first lens element has negative refractive power. The second lens element has an object-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being convex in a paraxial region thereof. The fifth lens element with negative refractive power has an object-side surface being concave and an image-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. At least one of an object-side surface and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, wherein both the surfaces of the sixth lens element are aspheric.
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公开(公告)号：US20230213735A1
公开(公告)日：2023-07-06
申请号：US18120842
申请日：2023-03-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hsin-Hsuan HUANG
CPC classification number: G02B13/004 , G02B9/34
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：US20220244505A1
公开(公告)日：2022-08-04
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
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：US20220113831A1
公开(公告)日：2022-04-14
申请号：US17194610
申请日：2021-03-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hsiang-Chi TANG , Tsung-Han TSAI , Fuh-Shyang YANG
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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Patent Agency Ranking
公开(公告)号：US20220019057A1
公开(公告)日：2022-01-20
申请号：US17488506
申请日：2021-09-29
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hsin-Hsuan HUANG
IPC: G02B13/00
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：US20200341242A1
公开(公告)日：2020-10-29
申请号：US16525524
申请日：2019-07-29
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Yu-Tai TSENG , Chun-Che HSUEH , Hung-Shuo CHEN , Wei-Yu CHEN
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：US20200241251A1
公开(公告)日：2020-07-30
申请号：US16845125
申请日：2020-04-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Dung-Yi HSIEH , Chun-Che HSUEH , Wei-Yu CHEN
Abstract: An imaging optical 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 and a fifth lens element. The first lens element with refractive power has an object-side surface being convex in a paraxial region and an image-side surface being concave in a paraxial region. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region. The third lens element with negative refractive power has an image-side surface being concave in a paraxial region. The fourth lens element with positive refractive power has an image-side surface being convex in a paraxial region. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region and having a convex shape in an off-axial region thereof.
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公开(公告)号：US20200012077A1
公开(公告)日：2020-01-09
申请号：US16574155
申请日：2019-09-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hsin-Hsuan HUANG , Shu-Yun YANG
Abstract: An image capturing lens system includes, 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 in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, a second lens element with negative refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, a third lens element with positive refractive power having an object-side surface being concave in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof, and a fourth 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.
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公开(公告)号：US20190324230A1
公开(公告)日：2019-10-24
申请号：US16456638
申请日：2019-06-28
Applicant: Largan Precision Co.,Ltd.
Inventor： Chun-Che HSUEH , Hsin-Hsuan HUANG
IPC: G02B13/00
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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