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公开(公告)号：US20230080616A1
公开(公告)日：2023-03-16
申请号：US17735199
申请日：2022-05-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsin-Hsuan HUANG
Abstract: An optical lens assembly includes five lens elements, the five lens elements are, in order from a magnification side to a reduction 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 m-side surface facing towards the magnification side and an r-side surface facing towards the reduction side. The m-side surface of the second lens element is concave in a paraxial region thereof. At least one surface of at least one of the five lens elements includes at least one inflection point.
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公开(公告)号：US20230058337A1
公开(公告)日：2023-02-23
申请号：US17938715
申请日：2022-10-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsin-Hsuan HUANG
Abstract: An image capturing optical assembly includes, in order from an object side to an image side, a first lens group, a second lens group and a third lens group, wherein the first lens group includes a first lens element and a second lens element, the second lens group includes a third lens element, a fourth lens element and a fifth lens element, and the third lens group includes a sixth lens element, a seventh lens element and an eighth lens element. At least one surface of at least one of the lens elements of each lens group is aspheric. At least one surface of at least one of the lens elements includes at least one inflection point.
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公开(公告)号：US20220236527A1
公开(公告)日：2022-07-28
申请号：US17713986
申请日：2022-04-05
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：US20220196973A1
公开(公告)日：2022-06-23
申请号：US17693033
申请日：2022-03-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Hsin-Hsuan HUANG
Abstract: An optical imaging 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 of the optical imaging system 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 and has at least one convex shape in an off-axis region thereof. The object-side surface of the first lens element is aspheric. The image-side surface of the fourth lens element is concave in a paraxial region thereof. The optical imaging system has a total of four lens elements.
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公开(公告)号：US20220196971A1
公开(公告)日：2022-06-23
申请号：US17354176
申请日：2021-06-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Yu CHEN , Hsin-Hsuan HUANG
Abstract: An imaging optical lens system includes eleven 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, a tenth lens element and an eleventh lens element. There is an air gap in a paraxial region between each of all adjacent lens elements of the imaging optical lens system. At least one of an object-side surface and an image-side surface of each of at least two lens elements located between an aperture stop and an image surface of the imaging optical lens system is concave in a paraxial region thereof and has at least one convex critical point in an off-axis region thereof.
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Patent Agency Ranking
公开(公告)号：US20220187578A1
公开(公告)日：2022-06-16
申请号：US17206078
申请日：2021-03-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ting YEH , Hsin-Hsuan HUANG
Abstract: An optical image 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 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 image-side surface of the third lens element is concave in a paraxial region thereof. The object-side surface of the fourth lens element is concave in a paraxial region thereof, and the image-side surface of the fourth lens element is convex in a paraxial region thereof.
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公开(公告)号：US20220137373A1
公开(公告)日：2022-05-05
申请号：US17578513
申请日：2022-01-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin-Yao LIAO , Hsin-Hsuan HUANG
Abstract: A photographing optical 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 with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface. The third lens element has refractive power. The fourth lens element has refractive power, and an object-side surface and an image-side surface thereof are aspheric. The fifth lens element with negative refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface thereof are aspheric, and at least one of the object-side surface and the image-side surface thereof has at least one inflection point.
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公开(公告)号：US20220066146A1
公开(公告)日：2022-03-03
申请号：US17075568
申请日：2020-10-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsin-Hsuan HUANG
Abstract: An optical image lens assembly includes nine 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 and a ninth lens element. Each of the nine lens elements has an object-side surface facing toward the object side and an image-side surface facing toward the image side. The first lens element has positive refractive power. The second lens element has negative refractive power. The image-side surface of the ninth lens element is concave in a paraxial region thereof and has at least one inflection point.
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公开(公告)号：US20210405332A1
公开(公告)日：2021-12-30
申请号：US17474848
申请日：2021-09-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsin-Hsuan HUANG
Abstract: This disclosure discloses an optical imaging lens assembly, sequentially arranged from an object side to an image side along an optical axis, comprising: the first lens element with positive refractive power, the second lens element with negative refractive power having a convex object-side surface and a concave image-side surface, the third lens element with positive refractive power, the fourth lens element with negative refractive power having a concave object-side surface and a convex image-side surface, the fifth lens element with refractive power having a concave image-side surface, and both object-side surface and image-side surface being aspheric, wherein a stop and an image sensor disposed on an image plane are also provided. By such arrangements, the image pickup optical system satisfies conditions related to shorten the total length and to reduce the sensitivity for use in compact cameras and mobile phones with camera functionalities.
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公开(公告)号：US20210389560A1
公开(公告)日：2021-12-16
申请号：US17460427
申请日：2021-08-30
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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