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公开(公告)号:US20210080695A1
公开(公告)日:2021-03-18
申请号:US17103699
申请日:2020-11-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Yu-Tai TSENG , Yu-Chun KE , Kuo-Jui WANG , Tzu-Chieh KUO
Abstract: An imaging optical lens assembly 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 all lens surfaces of the four lens elements is aspheric and has at least one inflection point.
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公开(公告)号:US20190146186A1
公开(公告)日:2019-05-16
申请号:US15951912
申请日:2018-04-12
Applicant: LARGAN PRECISION CO.,LTD.
Inventor: Cheng-Yuan LIAO , Shu-Yun YANG , Kuo-Jui WANG
Abstract: An optical imaging lens assembly 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. The first lens element has an image-side surface being concave in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. 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 positive refractive power. The fifth lens element has negative refractive power.
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公开(公告)号:US20220091395A1
公开(公告)日:2022-03-24
申请号:US17383184
申请日:2021-07-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Hsin-Hsuan HUANG , Kuan-Ting YEH , Kuo-Jui WANG , Yu-Tai TSENG
Abstract: An electronic device includes at least two image capturing units which face the same side. The at least two image capturing units include a first image capturing unit and a second image capturing unit. The first image capturing unit includes an optical image system and a first image sensor. The optical image system includes a first lens element and an image surface. The first image sensor is disposed on the image surface of the optical image system thereof and has a first resolution of at least 60 megapixels. The second image capturing unit includes an optical image system and a second image sensor. The optical image system includes a first lens element and an image surface. The second image sensor is disposed on the image surface of the optical image system thereof and has a second resolution of at least 40 megapixels.
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公开(公告)号:US20210389565A1
公开(公告)日:2021-12-16
申请号:US16928950
申请日:2020-07-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuo-Jui WANG , Tzu-Chieh KUO
Abstract: An imaging lens assembly includes seven 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 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 second lens element has positive refractive power. The sixth lens element has positive refractive power, and the image-side surface of the sixth lens element is convex in a paraxial region thereof. The seventh lens element has negative refractive power. At least one of the object-side surface and the image-side surface of at least one lens element of the imaging lens assembly is aspheric and has at least one inflection point.
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公开(公告)号:US20230132957A1
公开(公告)日:2023-05-04
申请号:US17537870
申请日:2021-11-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Jin Sen WANG , Kuo-Jui WANG , Kuan-Ting YEH , Tzu-Chieh KUO
IPC: G02B9/64 , G02B13/00 , H01L27/146
Abstract: An optical photographing system includes seven 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 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 sixth lens element is convex in a paraxial region thereof. At least one of the object-side surface and the image-side surface of at least one lens element of the optical photographing system has at least one inflection point.
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公开(公告)号:US20220035132A1
公开(公告)日:2022-02-03
申请号:US17020611
申请日:2020-09-14
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuo-Jui WANG , Tzu-Chieh KUO
Abstract: An image capturing lens system includes four lens groups which include eight lens elements. The four lens groups are, in order from an object side to an image side: first, second, third and fourth lens groups. The eight lens elements are, in order from the object side to the image side: first, second, third, fourth, fifth, sixth, seventh and eighth lens elements. The first and second lens elements respectively have positive and negative refractive power. At least one lens element in the second through fourth lens groups has an inflection point. A focal length of the image capturing lens system is varied by changing axial distances between the four lens groups in a zooming process. The second lens group is moved relative to the first lens group along an optical axis in the zooming process. The image capturing lens system has a long-focal-length end and a short-focal-length end.
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公开(公告)号:US20210191075A1
公开(公告)日:2021-06-24
申请号:US16814914
申请日:2020-03-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Kuo-Jui WANG , Kuan Chun WANG , Hung-Shuo CHEN , Jin Sen WANG , Syuan Ruei LAI , Wei-Yu CHEN
Abstract: An optical lens assembly includes four lens elements which are, in order from an object side to an image side along an imaging optical path: a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has positive refractive power. The second lens element has an image-side surface being concave in a paraxial region thereof. The third lens element has an object-side surface being concave in a paraxial region thereof. The fourth lens element with negative 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, 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 in an off-axis region thereof.
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公开(公告)号:US20200285027A1
公开(公告)日:2020-09-10
申请号:US16413200
申请日:2019-05-15
Applicant: LARGAN PRECISION CO.,LTD.
Inventor: Hung-Shuo CHEN , Syuan Ruei LAI , Kuo-Jui WANG , Po-Lun HSU , Wei-Yu CHEN
Abstract: An imaging optical lens assembly 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 with positive refractive power has an object-side surface being convex in a paraxial region thereof.
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公开(公告)号:US20240134155A1
公开(公告)日:2024-04-25
申请号:US18378034
申请日:2023-10-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Yu-Tai TSENG , Yu-Chun KE , Kuo-Jui WANG , Tzu-Chieh KUO
CPC classification number: G02B13/004 , G02B9/34
Abstract: An imaging optical lens assembly 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 all lens surfaces of the four lens elements is aspheric and has at least one inflection point.
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公开(公告)号:US20230121687A1
公开(公告)日:2023-04-20
申请号:US18080548
申请日:2022-12-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor: Yu-Tai TSENG , Yu-Chun KE , Kuo-Jui WANG , Tzu-Chieh KUO
Abstract: An imaging optical lens assembly 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 all lens surfaces of the four lens elements is aspheric and has at least one inflection point.
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