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公开(公告)号：US20240168261A1
公开(公告)日：2024-05-23
申请号：US18120340
申请日：2023-03-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Po-Wei CHEN , I-Hsuan CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B13/004 , G02B9/44 , G02B13/0065
Abstract: A photographing system 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 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 surface of at least one lens element in the photographing system lens assembly has at least one inflection point. The first lens element has positive refractive power, the object-side surface of the first lens element is convex in a paraxial region thereof, and the image-side surface of the first lens element is convex in a paraxial region thereof. The object-side surface of the second lens element is concave in a paraxial region thereof. The image-side surface of the third lens element is concave in a paraxial region thereof.
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公开(公告)号：US20230384558A1
公开(公告)日：2023-11-30
申请号：US17885418
申请日：2022-08-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Cheng-Chen LIN , Chun-Che HSUEH , Hsin-Hsuan HUANG , I-Hsuan CHEN
IPC: G02B9/62
CPC classification number: G02B9/62
Abstract: An imaging system lens assembly includes 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 in order from an object side to an image side along an optical path. 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. The first lens element has positive refractive power. The fifth lens element has positive refractive power. The image-side surface of the fifth lens element is concave in a paraxial region thereof. The image-side surface of the sixth lens element has at least one inflection point. A central thickness of the first lens element is a maximum among central thicknesses of all lens elements of the imaging system lens assembly.
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公开(公告)号：US20240004162A1
公开(公告)日：2024-01-04
申请号：US17899461
申请日：2022-08-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Jui LIN , Kuan-Ting YEH , I-Hsuan CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B13/0045 , G02B9/62
Abstract: An imaging system lens assembly includes six 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 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. The first lens element has positive refractive power. The image-side surface of the fifth lens element is convex in a paraxial region thereof. The image-side surface of the sixth lens element is concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one inflection point.
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Patent Agency Ranking
公开(公告)号：US20230375803A1
公开(公告)日：2023-11-23
申请号：US17886352
申请日：2022-08-11
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Shih-Han CHEN , Hsin-Hsuan HUANG , I-Hsuan CHEN
CPC classification number: G02B9/60 , G02B13/0045 , H04N5/2254 , G02B13/0065
Abstract: An image lens assembly includes five lens elements which are, in order from an outer side to an inner 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 outer-side surface facing toward the outer side and an inner-side surface facing toward the inner side. The outer-side surface of the first lens element is concave in a paraxial region thereof, and the outer-side surface of the first lens element has at least one inflection point.
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公开(公告)号：US20240053588A1
公开(公告)日：2024-02-15
申请号：US17948143
申请日：2022-09-19
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsiang-Chi TANG , I-Hsuan CHEN , Hsin-Hsuan HUANG
CPC classification number: G02B13/0065 , G02B9/14 , G02B13/0035 , H04N5/2254
Abstract: A folded optical system includes an optical folding assembly and lens elements. The optical folding assembly has a first transmissive surface, a first reflective surface, a second reflective surface substantially the same interface as the first transmissive surface, a third reflective surface and a second transmissive surface sequentially along an optical path. The optical path reaches the first reflective surface via the first transmissive surface along a first optical axis to be sequentially redirected to a second optical axis, a third optical axis, and a fourth optical axis respectively by the first reflective surface, the second reflective surface, and the third reflective surface and reaches an image surface via the second transmissive surface. The lens elements at least include a first lens element located on the first optical axis. The first lens element with positive refractive power has a light incident surface being convex in a paraxial region thereof.
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公开(公告)号：US20230333347A1
公开(公告)日：2023-10-19
申请号：US17855652
申请日：2022-06-30
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Tai TSENG , Meng-Kuan CHO , I-Hsuan CHEN
IPC: G02B9/60
CPC classification number: G02B9/60
Abstract: A photographing optical 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 image-side surface of the second lens element is concave in a paraxial region thereof. The third lens element has negative refractive power. The fourth lens element has positive refractive power. The object-side surface of the fifth lens element is convex in a paraxial region thereof, the image-side surface of the fifth lens element is concave in a paraxial region thereof, and the image-side surface of the fifth lens element has at least one inflection point.
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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：US20240085664A1
公开(公告)日：2024-03-14
申请号：US17960685
申请日：2022-10-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Xiang FU , Jin Sen WANG , I-Hsuan CHEN , Hsin-Hsuan HUANG
Abstract: An imaging system 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 an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The second lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The third lens element 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 fifth lens element with positive 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 having at least one inflection point.
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