-
公开(公告)号：US20250147264A1
公开(公告)日：2025-05-08
申请号：US19017929
申请日：2025-01-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng LIN , Ming-Ta CHOU
Abstract: An imaging lens assembly includes a plastic barrel and a lens set, and the lens set is disposed in the plastic barrel. The plastic barrel includes an object-side outer surface, a first inner surface and a second inner surface. The lens set has an optical axis, and includes, in order from an object side to an image side thereof, at least one plastic lens element and a spacer. A light-absorbing coating is disposed on the plastic lens element. The spacer includes an object-side connecting surface and a relative surface. When the object-side connecting surface is connected with a neighboring object-side optical element, the relative surface is out of touch with the neighboring object-side optical element. There is an overlap between the second inner surface and the relative surface along a direction parallel to the optical axis.
-
公开(公告)号：US20250130479A1
公开(公告)日：2025-04-24
申请号：US19002067
申请日：2024-12-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hao Jan CHEN , Yu Chen LAI , Ming-Ta CHOU
Abstract: A camera module with an optical axis includes a fixed part and a movable part movable with respect to the fixed part. The movable part includes an imaging lens including a lens carrier and a variable through hole assembly. The lens carrier is configured for at least one lens element to be disposed therein, and the lens carrier includes a mount structure. The variable through hole assembly includes a plurality of movable blades and a rotatable element. The movable blades movably and together surround the optical axis to form a through hole, and a size of the through hole is variable by movement of the movable blades. The rotatable element is connected to the movable blades and sleeved on at least part of the lens carrier to be disposed on the mount structure, and the rotatable element moves the movable blades to vary the size of the through hole.
-
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.
-
公开(公告)号：US20250004240A1
公开(公告)日：2025-01-02
申请号：US18674980
申请日：2024-05-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin HUANG , Yu-Chen LAI , Pei-Chi CHANG , Ming-Ta CHOU
Abstract: A glass lens element includes an optical portion and a peripheral portion. The peripheral portion is away from an optical axis from the optical portion, and the peripheral portion includes a cylindrical surface, a first arc surface, a brim surface and a connecting surface. The first arc surface is connected to the cylindrical surface, and the first arc surface extends from the cylindrical surface. The brim surface and the first arc surface are disposed relatively to the cylindrical surface, and the brim surface extends and protrudes from the cylindrical surface towards a direction away from the first arc surface. The connecting surface is gradually close to the optical axis from the first arc surface towards a direction away from the brim surface, and the connecting surface is connected to the optical portion. The peripheral portion is smooth connected from the first arc surface towards the brim surface.
-
公开(公告)号：US20240353649A1
公开(公告)日：2024-10-24
申请号：US18762332
申请日：2024-07-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Tang TSAI , Lin An CHANG , Ming-Ta CHOU , Ming-Shun CHANG
Abstract: An imaging lens system includes an imaging lens assembly, a spacer element and a retaining element. The spacer element is configured to maintain a distance between a first lens element and a second lens element of the imaging lens assembly. The spacer element includes a connecting part connected to the second lens element and a supporting part connected to the connecting part and extending from the connecting part towards an optical axis of the imaging lens assembly. The first lens element is disposed on the supporting part. The retaining element is configured to fix the first lens element to the supporting part. The retaining element includes a retaining surface, and the retaining surface and the first lens element are abutted against each other. There is an air gap between the retaining element and the first lens element, and the air gap is adjacent to the retaining surface.
-
Patent Agency Ranking
公开(公告)号：US20240295681A1
公开(公告)日：2024-09-05
申请号：US18229114
申请日：2023-08-01
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu Chen LAI , Chien-Hsun WU , Ming-Ta CHOU , Wen-Yu TSAI
Abstract: An imaging lens includes a central optical path, a plurality of lens elements sequentially arranged along the central optical path, a wide-range low reflection layer, and an infrared light reduction layer. The plurality of lens elements include a first lens element. The wide-range low reflection layer is disposed on an object-side surface of the first lens element, and the average reflectance of the wide-range low reflection layer to light with a wavelength ranging from 750 to 1050 nanometers is less than or equal to 0.98%. The infrared light reduction layer is located closer to an image side than the wide-range low reflection layer, and the average reflectance of the infrared light reduction layer to light with a wavelength ranging from 750 to 1050 nanometers is greater than or equal to 50%. The central optical path passes through a paraxial region of the first lens element.
-
公开(公告)号：US20240255723A1
公开(公告)日：2024-08-01
申请号：US18603292
申请日：2024-03-13
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Jyun-Jia CHENG , Ming-Ta CHOU , Ming-Shun CHANG
CPC classification number: G02B7/021 , G02B13/0045
Abstract: An imaging lens assembly module has an optical axis, and includes an optical element set, a light blocking element assembling surface, and a light absorbing layer. The optical element set includes an optical lens element and a light blocking sheet. The optical lens element is a plastic lens element, and includes an optical effective portion and an outer peripheral portion. The light blocking sheet is disposed on the outer peripheral portion, and spaced apart from the outer peripheral portion. The light blocking sheet includes an object-side surface, an image-side surface and an inner opening surface. The inner opening surface surrounds a through hole of the light blocking sheet. The light blocking sheet is disposed on the light blocking element assembling surface. The light absorbing layer is disposed on the image-side surface and for fixing the light blocking sheet on the light blocking element assembling surface.
-
公开(公告)号：US20240103342A1
公开(公告)日：2024-03-28
申请号：US17991728
申请日：2022-11-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chia-Cheng TSAI , Hsiu-Yi HSIAO , Ming-Ta CHOU , Te-Sheng TSENG
Abstract: A variable aperture module includes a blade assembly, a positioning element, a driving part and pressing structures. The blade assembly includes movable blades disposed around an optical axis to form a light passable hole with an adjustable size. Each movable blade has a positioning hole and a movement hole adjacent thereto. The positioning element includes positioning structures disposed respectively corresponding to the positioning holes. The driving part includes a rotation element disposed corresponding to the movement holes and is rotatable with respect to the positioning element. The pressing structures are disposed respectively corresponding to the movable blades. Each pressing structure is at least disposed into at least one of the positioning hole and the movement hole of the corresponding movable blade. Each pressing structure at least presses against at least one of the corresponding one positioning structure and the rotation element.
-
公开(公告)号：US20240085676A1
公开(公告)日：2024-03-14
申请号：US18518314
申请日：2023-11-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Min-Chun LIAO , Lin An CHANG , Ming-Ta CHOU , Jyun-Jia CHENG , Cheng-Feng LIN , Ming-Shun CHANG
CPC classification number: G02B13/0065 , G02B5/22 , G02B23/08 , G03B17/17
Abstract: A light-folding element includes an object-side surface, an image-side surface, a reflection surface and a connection surface. The reflection surface is configured to reflect imaging light passing through the object-side surface to the image-side surface. The connection surface is connected to the object-side, image-side and reflection surfaces. The light-folding element has a recessed structure located at the connection surface. The recessed structure is recessed from the connection surface an includes a top end portion, a bottom end portion and a tapered portion located between the top end and bottom end portions. The top end portion is located at an edge of the connection surface. The tapered portion has two tapered edges located on the connection surface. The tapered edges are connected to the top end and bottom end portions. A width of the tapered portion decreases in a direction from the top end portion towards the bottom end portion.
-
公开(公告)号：US20240085671A1
公开(公告)日：2024-03-14
申请号：US18518334
申请日：2023-11-22
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Ming-Ta CHOU , Cheng-Feng LIN , Wei-Hung WENG
CPC classification number: G02B13/002 , G02B3/04 , G02B7/026 , G02B27/0018 , G02B27/0025
Abstract: An annular light trapping component includes an inner surface, an outer surface, an object-side surface and an image-side surface. The inner surface includes multiple L-shaped annular grooves. The annular light trapping component includes multiple stripe-shaped structures in the L-shaped annular grooves. The L-shaped annular grooves include an object-side L-shaped annular groove closest to the object-side surface and an image-side L-shaped annular groove closest to the image-side surface. A bottom diameter of the image-side L-shaped annular groove is larger than a bottom diameter of the object-side L-shaped annular groove. Each L-shaped annular groove includes a first side and a second side located between the object-side surface and the image-side surface. The stripe-shaped structures are disposed on the first side or the second side. A degree of inclination between the first side and the central axis is larger than a degree of inclination between the second side and the central axis.
-
-
-
-
-
-
-
-
-
Search Results
265
records
(took 0.024 seconds)
