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公开(公告)号：US20200096734A1
公开(公告)日：2020-03-26
申请号：US16188866
申请日：2018-11-13
Applicant: LARGAN PRECISION CO.,LTD.
Inventor： Chun-Che HSUEH , Hung-Shuo CHEN , Yu-Tai TSENG , Tzu-Chieh KUO
Abstract: An imaging optical 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. Each of the six 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 lens element of the imaging optical system has at least one aspheric surface having at least one inflection point.
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公开(公告)号：US20180348484A1
公开(公告)日：2018-12-06
申请号：US15797211
申请日：2017-10-30
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：US20180299648A1
公开(公告)日：2018-10-18
申请号：US15698789
申请日：2017-09-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Chien-Hsun WU , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/60
Abstract: An image capturing 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 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 has negative refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof and includes at least one convex critical point in an off-axis region thereof.
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公开(公告)号：US20180252897A1
公开(公告)日：2018-09-06
申请号：US15634781
申请日：2017-06-27
Applicant: LARGAN Precision Co., Ltd.
Inventor： Chun-Che HSUEH , Shu-Yun YANG
Abstract: An optical imaging 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 negative refractive power. The fourth lens element has an image-side surface being convex in a paraxial region thereof. The fifth lens element has positive refractive power. The sixth lens element has an object-side surface being convex in a paraxial region thereof.
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公开(公告)号：US20180239114A1
公开(公告)日：2018-08-23
申请号：US15646978
申请日：2017-07-11
Applicant: LARGAN Precision Co., Ltd.
Inventor： Chun-Che HSUEH , Wei-Yu CHEN , Chun-Shan CHEN , Hsuan-Chin HUANG , Kuan-Ting YEH
CPC classification number: G02B13/0045 , G02B9/60 , H04N5/2254
Abstract: An optical photographing lens assembly includes five lens elements, 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 in a paraxial region thereof. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface in a paraxial region thereof. The fourth lens element with positive refractive power has a convex image-side surface in a paraxial region thereof. The fifth lens element with negative refractive power has a concave image-side surface in a paraxial region thereof, wherein the image-side surface of the fifth lens element has at least one convex critical point in an off-axial region thereof, and two surfaces of the fifth lens element are both aspheric.
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Patent Agency Ranking
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：US20240159937A1
公开(公告)日：2024-05-16
申请号：US18097952
申请日：2023-01-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Guan-Bo LIN , Hsiang-Chi TANG , Chun-Che HSUEH , I-Hsuan CHEN
CPC classification number: G02B1/002 , G02B9/34 , G02B9/60 , G02B9/62 , G02B13/004 , G02B13/0045 , G02B13/006 , G03B30/00 , H04N23/55 , G02B13/0065
Abstract: A photographing lens assembly includes at least four lens elements that are, in order from an object side to an image side along an optical path, a first lens element, a second lens element, at least one subsequent lens element and a last lens element that is closest to an image surface. Each of the at least 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 surface among lens surfaces from the image-side surface of the second lens element to the object-side surface of the last lens element is a metasurface having a subwavelength microstructure.
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公开(公告)号：US20240061216A1
公开(公告)日：2024-02-22
申请号：US18383436
申请日：2023-10-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hung-Shuo CHEN , Kuan Chun WANG , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/64 , G02B13/0015
Abstract: A photographing lens assembly includes a total of 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 second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.
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公开(公告)号：US20230144951A1
公开(公告)日：2023-05-11
申请号：US18092417
申请日：2023-01-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Hung-Shuo CHEN , Kuan Chun WANG , Wei-Yu CHEN
CPC classification number: G02B13/0045 , G02B9/64 , G02B13/0015
Abstract: A photographing lens assembly includes a total of 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 second lens element has negative refractive power. The eighth lens element with negative refractive power has an object-side surface being concave in a paraxial region thereof. At least one lens element of the photographing lens assembly has at least one lens surface having at least one inflection point.
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公开(公告)号：US20230041230A1
公开(公告)日：2023-02-09
申请号：US17933867
申请日：2022-09-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Che HSUEH , Chun-Yen CHEN , Wei-Yu CHEN
Abstract: A 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. The first lens element with positive refractive power has an object-side surface being convex 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 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. The image-side surface of the seventh lens element includes at least one convex shape in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are aspheric.
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