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公开(公告)号：US20220350105A1
公开(公告)日：2022-11-03
申请号：US17667796
申请日：2022-02-09
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Hua TSAI , Yu-Chen LAI , Ming-Ta CHOU
Abstract: An imaging lens assembly includes, in order from an object side to an image side, a first lens element and a second lens element. The first lens element includes a first frustum surface and a second frustum surface. The first frustum surface is disposed on a side of the first lens element facing towards the second lens element. The first frustum surface and the second frustum surface are disposed on the same side and coaxial, and the second frustum surface is closer to an optical axis than the first frustum surface to the optical axis. The second lens element includes a first corresponding frustum surface and a second corresponding frustum surface. The first corresponding frustum surface is corresponding to the first frustum surface. The second corresponding frustum surface is corresponding to the second frustum surface.
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公开(公告)号：US20220066119A1
公开(公告)日：2022-03-03
申请号：US17351423
申请日：2021-06-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Chen LAI , Chih-Wei CHENG , Ming-Ta CHOU , Ming-Shun CHANG
Abstract: An imaging lens assembly includes a plurality of optical elements and an accommodating assembly, wherein the accommodating assembly is for containing the optical elements. The accommodating assembly includes a conical-shaped light blocking sheet and a lens barrel. The conical-shaped light blocking sheet includes an out-side portion and a conical portion, and the conical portion is connected to the out-side portion. The conical portion includes a conical structure tapered from the out-side portion toward one of an object-side and an image-side along the optical axis. The lens barrel is disposed on one side of the conical portion. The optical elements include a most object-side optical element, a most image-side optical element and at least one optical element. The conical structure of the conical-shaped light blocking sheet is physically contacted with only one of the lens barrel, the most object-side optical element and the most image-side optical element.
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3.发明公开公开(公告)号：US20230288698A1
公开(公告)日：2023-09-14
申请号：US18165959
申请日：2023-02-08
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Kuan-Ming CHEN , Yu-Chen LAI
CPC classification number: G02B27/0025 , G03B30/00 , G02B27/283 , G02B27/288 , H04N23/90 , B60R11/04 , G02F1/0136
Abstract: A camera module includes an imaging lens assembly, an image sensor, a plate element and a polarizing element. The imaging lens assembly is configured to define an optical axis. The image sensor is disposed on an image surface of the imaging lens assembly. The plate element is farther from the image sensor than the imaging lens assembly from the image sensor on the optical axis, wherein the plate element is inclined to the optical axis. The polarizing element is disposed on an image side of the plate element, so that an object-side light with a specific polarity from the plate element passes through.
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公开(公告)号：US20230115906A1
公开(公告)日：2023-04-13
申请号：US17933885
申请日：2022-09-21
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Pei-Chi CHANG , Chien-Pang CHANG , Yu-Chen LAI , Ming-Ta CHOU , Wen-Yu TSAI , Kuo-Chiang CHU
Abstract: An imaging optical system includes an infrared light absorbing element, an infrared light reducing film and a plate element in order along a paraxial path. The infrared light absorbing element is made of an infrared light absorbing plastic material, and the infrared light absorbing element is configured to refract a light. The infrared light reducing film is closer to an image surface of the imaging optical system than an incident surface of the infrared light absorbing element to the image surface of the imaging optical system. The plate element is disposed between the infrared light reducing film and the image surface, the plate element includes a translucent portion, a holder portion and a taper structure coating. The taper structure coating is disposed on at least one of an incident surface and an exit surface of the translucent portion.
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公开(公告)号：US20220221623A1
公开(公告)日：2022-07-14
申请号：US17412433
申请日：2021-08-26
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chih-Wei CHENG , Yu-Chen LAI , Ming-Ta CHOU , Ming-Shun CHANG
Abstract: An imaging lens assembly has an optical axis, and includes a plurality of optical elements. The optical elements include a light blocking sheet, and the light blocking sheet includes a through hole surface, a first surface, a second surface, a peripheral surface and a plurality of basin structures. The through hole surface surrounds the optical axis. The first surface and the second surface are connected to and surround the through hole surface. The peripheral surface is connected to the first surface and the second surface, and the peripheral surface is farther from the optical axis than the through hole surface from the optical axis. The basin structures are arranged in interval and around the optical axis, each of the basin structures is caved in from the first surface to the second surface, and each of the basin structures protrudes on the second surface.
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Patent Agency Ranking
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.
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公开(公告)号：US20230204898A1
公开(公告)日：2023-06-29
申请号：US18146515
申请日：2022-12-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chun-Hua TSAI , Yu-Chen LAI , Ming-Ta CHOU
CPC classification number: G02B7/021 , G02B13/0045 , G02B7/025
Abstract: A lens assembly having a paraxial path includes a carrier, a plurality of optical elements, a retaining element and a first bonding material. A closed structure is located adjacent to the second end. The closed structure is formed by at least one optical element of the optical elements and the inner annular surface, the at least one optical element is in physical contact with the inner annular surface, and an inside space is closed from an outside air by the closed structure. A first ventilation structure is located adjacent to the first end and connected between the closed structure and the outside air. The first ventilation structure is disposed on a side surface facing the optical elements of the retaining element and includes a contact surface and a first shrunk surface.
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公开(公告)号：US20230060740A1
公开(公告)日：2023-03-02
申请号：US17815279
申请日：2022-07-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Jyun-Jia CHENG , Yu-Chen LAI , Ming-Ta CHOU , Chen-Yi HUANG
Abstract: A camera module includes an imaging lens assembly and an image sensor. The imaging lens assembly includes a plastic optical element with a light-blocking layer disposed on its transparent surface. The plastic optical element includes an optical effective area, and a peripheral region of the light-blocking layer forms a specific shape around the optical effective area so as to define an aperture region. The peripheral region includes a main portion and a compensation portion. The main portion is physically contacted with the transparent surface. The compensation portion is disposed on an edge of the main portion adjacent to the optical effective area, and an optical density of the compensation portion is lower than an optical density of the main portion. The image sensor is disposed on an image side of the imaging lens assembly for defining a maximum image height and further defining a relative illumination.
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公开(公告)号：US20240231033A1
公开(公告)日：2024-07-11
申请号：US18617804
申请日：2024-03-27
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Yu-Chen LAI , Chih-Wei CHENG , Ming-Ta CHOU , Ming-Shun CHANG
Abstract: An imaging lens assembly includes a plurality of optical elements and an accommodating assembly, wherein the accommodating assembly is for containing the optical elements. The accommodating assembly includes a conical-shaped light blocking sheet and a lens barrel. The conical-shaped light blocking sheet includes an out-side portion and a conical portion, and the conical portion is connected to the out-side portion. The conical portion includes a conical structure tapered from the out-side portion toward one of an object-side and an image-side along the optical axis. The lens barrel is disposed on one side of the conical portion. The optical elements include a most object-side optical element, a most image-side optical element and at least one optical element. The conical structure of the conical-shaped light blocking sheet is physically contacted with only one of the lens barrel, the most object-side optical element and the most image-side optical element.
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公开(公告)号：US20240022803A1
公开(公告)日：2024-01-18
申请号：US18138954
申请日：2023-04-25
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Te-Sheng TSENG , Yu-Chen LAI , Ming-Ta CHOU
IPC: H04N23/55 , G03B30/00 , H02K41/035 , H04N23/68 , H04N23/54
CPC classification number: H04N23/55 , G03B30/00 , H02K41/0354 , H04N23/6812 , H04N23/687 , H04N23/54 , G02B5/003
Abstract: A camera module includes an imaging lens, an image sensor, a corner drive mechanism and a side drive mechanism. The image sensor is disposed at an image side of the imaging lens. The image sensor includes a photosensitive surface. The photosensitive surface faces the imaging lens. The photosensitive surface is substantially rectangular. The photosensitive surface is movable close to or away from the imaging lens in a focusing direction, and is movable in a translational direction orthogonal to the focusing direction. The corner drive mechanism is disposed corresponding to a corner of the photosensitive surface. The side drive mechanism is disposed corresponding to a side of the photosensitive surface. One of the corner drive mechanism and the side drive mechanism drives the image sensor to move in the focusing direction, and another one thereof drives the image sensor to move in the translational direction.
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