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公开(公告)号：US20240168254A1
公开(公告)日：2024-05-23
申请号：US18509388
申请日：2023-11-15
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Heng-Yi SU , Liang-Chieh WENG , Wen-Yu TSAI , Ming-Ta CHOU
Abstract: An imaging lens assembly includes a lens barrel, optical lens elements, an annular retaining element and a nano-microstructure. The optical lens elements include at least one optical lens element disposed in the lens barrel. The annular retaining element is physically contacted with the optical lens element, and the annular retaining element includes an object-side surface, an image-side surface, an outer diameter surface and a light-through hole. The outer diameter surface is connected to the object-side surface and the image-side surface. The light-through hole is formed by gradually tapering from the object-side surface and the image-side surface towards the optical axis. The nano-microstructure has a plurality of irregular ridged convexes. The nano-microstructure is located between a lens barrel area defined via the lens barrel and a lens element area defined via the optical lens element on a direction vertical to the optical axis.
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公开(公告)号：US20250013038A1
公开(公告)日：2025-01-09
申请号：US18732776
申请日：2024-06-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chih-Wei CHENG , Sheng-Wen LIN , Ssu-Hsin LIU , Hsiu-Yi HSIAO , Ming-Ta CHOU
Abstract: An imaging lens assembly module includes an imaging lens element set, a light folding element and a plate-shaped light blocking element. The imaging lens element set has an optical axis, and includes a lens element. The light folding element is configured to fold the optical axis at least once, and includes an incident surface, an exit surface and an optical reflecting surface. The plate-shaped light blocking element keeps an air distance between the plate-shaped light blocking element and the light folding element, and includes two layered structures and columnar air structures. The layered structures are corresponding to the light folding element. The columnar air structures are farther away from the light folding element than a surface of the plate-shaped light blocking element from the light folding element, and the surface of the plate-shaped light blocking element faces toward the light folding element.
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公开(公告)号：US20230143018A1
公开(公告)日：2023-05-11
申请号：US18049696
申请日：2022-10-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Chen-Wei FAN , Ming-Ta CHOU , Chien-Pang CHANG , Wen-Yu TSAI
IPC: G02B7/02
CPC classification number: G02B7/021 , H04N5/2254
Abstract: An optical lens assembly includes a lens barrel and an optical lens group. The lens barrel includes a light entering hole, which is configured for allowing a light to enter the lens barrel. The lens barrel accommodates the optical lens group, and an optical axis passes through the optical lens group. The optical lens group includes a plurality of lens elements and at least one light blocking sheet. The light blocking sheet is an opaque sheet-shaped element and surrounds the optical axis to form a light passing hole. The light blocking sheet includes an object-side surface and an image-side surface, and the object-side surface is located more adjacent to the light entering hole than the image-side surface thereto. A first film layer is disposed on the object-side surface.
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公开(公告)号：US20240272407A1
公开(公告)日：2024-08-15
申请号：US18642968
申请日：2024-04-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Che TUNG , Chen-Wei FAN , Lin-An CHANG , Ssu-Hsin LIU
CPC classification number: G02B13/0065 , G02B5/003
Abstract: An optical imaging module includes an optical imaging lens assembly, a light path folding element and a light blocking element. The optical imaging lens assembly includes at least one optical lens element, and an optical axis passes through the optical lens element. The light path folding element has an incident surface, an emitting surface and at least one optical reflecting surface, and the light path folding element is disposed on an image side of the optical imaging lens assembly. The light blocking element is disposed on at least one of the optical lens element and the light path folding element, and includes an opening hole and a light blocking surface. The light blocking surface has a plurality of first anti-reflective structures, and each of the first anti-reflective structures is recessed from the light blocking surface toward a direction away from the light path folding element.
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公开(公告)号：US20240272406A1
公开(公告)日：2024-08-15
申请号：US18642955
申请日：2024-04-23
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Che TUNG , Lin-An CHANG , Ssu-Hsin LIU , Wen-Yu TSAI
IPC: G02B13/00
CPC classification number: G02B13/0065
Abstract: An optical imaging module includes an optical imaging lens assembly, a light path folding element and a light blocking element. The optical imaging lens assembly includes at least one optical lens element. The light path folding element has an incident surface, an emitting surface and at least one optical reflecting surface, and the light path folding element is disposed on an image side of the optical imaging lens assembly. The light blocking element is disposed on one of the optical lens element and the light path folding element, and the light blocking element includes an opening hole and a light blocking surface. The light blocking surface has an anti-reflective light blocking membrane layer. A surface of the anti-reflective light blocking membrane layer has a plurality of nanostructures, and the nanostructures are arranged in an irregular form.
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Patent Agency Ranking
公开(公告)号：US20240241353A1
公开(公告)日：2024-07-18
申请号：US18414590
申请日：2024-01-17
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Wei-Che TUNG , Chen-Wei FAN , Lin-An CHANG , Ssu-Hsin LIU
CPC classification number: G02B13/0065 , G02B5/003
Abstract: An optical imaging module includes an optical imaging lens assembly, a light path folding element and a light blocking element. The optical imaging lens assembly includes at least one optical lens element, and an optical axis passes through the optical lens element. The light path folding element has an incident surface, an emitting surface and at least one optical reflecting surface, and the light path folding element is disposed on an image side of the optical imaging lens assembly. The light blocking element is disposed on at least one of the optical lens element and the light path folding element, and includes an opening hole and a light blocking surface. The light blocking surface has a plurality of first anti-reflective structures, and each of the first anti-reflective structures is recessed from the light blocking surface toward a direction away from the light path folding element.
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公开(公告)号：US20240118522A1
公开(公告)日：2024-04-11
申请号：US18532974
申请日：2023-12-07
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Po-Lun HSU , Wei-Yu CHEN , Kuan-Ting YEH , Ssu-Hsin LIU
CPC classification number: G02B13/0045 , G02B9/62
Abstract: A photographing 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 with negative refractive power has an object-side surface being concave in a paraxial region thereof, wherein the object-side surface has at least one convex critical point in an off-axis region thereof. The third lens element has an image-side surface being convex in a paraxial region thereof. The fourth lens element has positive refractive power. The fifth lens element with negative 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 image-side surface being concave in a paraxial region thereof, wherein the image-side surface has at least one convex critical point in an off-axis region thereof.
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公开(公告)号：US20200278515A1
公开(公告)日：2020-09-03
申请号：US16879008
申请日：2020-05-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Tzu-Chieh KUO
IPC: G02B13/00
Abstract: The present disclosure provides an optical photographing lens system comprising four lens elements, the four lens elements being, 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; a second lens element; a third lens element; and a fourth 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, the image-side surface of the fourth lens element having at least one convex critical point in an off-axial region thereof, both the object-side and the image-side surfaces thereof being aspheric.
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公开(公告)号：US20240231057A9
公开(公告)日：2024-07-11
申请号：US18372598
申请日：2023-09-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Chen Wei FAN , Chien-Hsun WU , Wen-Yu TSAI , Ming-Ta CHOU
CPC classification number: G02B13/0065 , G02B1/04 , G02B1/115
Abstract: An optical path folding element includes a main body, a light absorption film layer and a matte structure. The main body has optical surface including an incident surface, a reflective surface and an emitting surface. A light enters into the optical folding element through the incident surface. The reflective surface reflects the light so as to change a traveling direction thereof. The light exits the optical folding element through the emitting surface. The light absorbing film layer is configured to reduce reflectance and provided adjacent to at least part of the optical surface, and the light absorbing film layer is in physical contact with the main body. The matte structure is disposed adjacent to at least part of the optical surface. The matte structure provides an undulating profile on a surface of the optical path folding element, and the matte structure is formed in one-piece with the main body.
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公开(公告)号：US20240134167A1
公开(公告)日：2024-04-25
申请号：US18372598
申请日：2023-09-24
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ssu-Hsin LIU , Chen Wei FAN , Chien-Hsun WU , Wen-Yu TSAI , Ming-Ta CHOU
CPC classification number: G02B13/0065 , G02B1/04 , G02B1/115
Abstract: An optical path folding element includes a main body, a light absorption film layer and a matte structure. The main body has optical surface including an incident surface, a reflective surface and an emitting surface. A light enters into the optical folding element through the incident surface. The reflective surface reflects the light so as to change a traveling direction thereof. The light exits the optical folding element through the emitting surface. The light absorbing film layer is configured to reduce reflectance and provided adjacent to at least part of the optical surface, and the light absorbing film layer is in physical contact with the main body. The matte structure is disposed adjacent to at least part of the optical surface. The matte structure provides an undulating profile on a surface of the optical path folding element, and the matte structure is formed in one-piece with the main body.
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