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公开(公告)号：US12003855B2
公开(公告)日：2024-06-04
申请号：US17880043
申请日：2022-08-03
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Chen-Yi Huang , Lin An Chang , Ming-Ta Chou
CPC classification number: H04N23/687 , H04N23/54
Abstract: An optical image stabilization driver device includes an image sensor, a fixed carrier, a circuit element, an elastic element and a driving element. The circuit element includes a fixed part disposed on the fixed carrier, a movable part and an electrical transmission part. The image sensor is disposed on the movable part. The electrical transmission part has conductive routes electrically connected to the movable part and the fixed part. The elastic element includes a first frame part corresponding to the fixed part, a second frame part corresponding to the movable part and an elastic connection part connected to the first frame part and the second frame part and providing the image sensor with a freedom of movement in a plane. The driving element is configured to drive the image sensor to move relative the fixed carrier in the plane.
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公开(公告)号：US11815731B2
公开(公告)日：2023-11-14
申请号：US16838846
申请日：2020-04-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin An Chang , Ming-Ta Chou
CPC classification number: G02B7/021 , G02B7/022 , G02B13/002 , G02B13/0045 , H04N23/55
Abstract: An imaging lens system has an optical axis and includes a plastic lens barrel and an imaging lens assembly disposed in the plastic lens barrel. The plastic lens barrel surrounds the optical axis and includes an object-side surface, an image-side surface, an inner annular portion and an outer annular portion. The object-side and image-side surfaces are oppositely disposed and substantially perpendicular to the optical axis. The inner and outer annular portions are connected to the object-side and image-side surfaces. The inner annular portion has an inner parallel annular surface, and the outer annular portion has a first outer annular surface and a gate trace. The imaging lens assembly includes a plurality of imaging lens elements. One of the imaging lens elements has an outer diameter larger than π2 millimeters. The one of the imaging lens elements has an outer edge in physical contact with the inner parallel annular surface.
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公开(公告)号：US12204075B2
公开(公告)日：2025-01-21
申请号：US17517474
申请日：2021-11-02
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Hsuan-Chin Huang , Lin An Chang , Ming-Ta Chou , Chun-Hua Tsai
Abstract: An imaging lens system includes a lens barrel element and an imaging lens assembly disposed on the lens barrel element and including a first imaging lens element, a spacer element and a second imaging lens element. The spacer element has a second object-side contact surface corresponding to a first image-side contact surface of the first imaging lens element. The second imaging lens element has a third object-side contact surface corresponding to a second image-side contact surface of the spacer element. The lens barrel element and the spacer element form a buffer structure closer to an optical axis than the first image-side contact surface and including a first gap and a second gap located closer to the optical axis than the first gap. The first gap overlaps the third object-side contact surface in a direction parallel to the optical axis. A step difference is between the first and second gaps.
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公开(公告)号：US12189273B2
公开(公告)日：2025-01-07
申请号：US18530072
申请日：2023-12-05
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin An Chang , Pei-Chi Chang , Ming-Ta Chou
IPC: G03B17/17
Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.
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公开(公告)号：US11442257B2
公开(公告)日：2022-09-13
申请号：US16719508
申请日：2019-12-18
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Cheng-Feng Lin , Lin An Chang , Ming-Ta Chou
Abstract: A camera module includes an imaging lens system, an image sensor and a plurality of light-folding elements. The imaging lens system is configured to focus imaging light onto an image surface. The image sensor is disposed on the image surface. The plurality of light-folding elements includes at least one image-side light-folding element disposed on an image side of the imaging lens system, and each of the light-folding elements is configured to fold the imaging light from an entrance optical path thereof to an exit optical path thereof. At least one light-shielding mechanism is arranged on at least one of the entrance light path and the exit light path of the at least one image-side light-folding element. The at least one light-shielding mechanism has a minimal opening, and the minimal opening surrounds the imaging light in the at least one of the entrance optical path and the exit optical path.
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Patent Agency Ranking
公开(公告)号：US12253656B2
公开(公告)日：2025-03-18
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
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.
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公开(公告)号：US11662540B2
公开(公告)日：2023-05-30
申请号：US17518900
申请日：2021-11-04
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin An Chang , Ming-Ta Chou , Chun-Hua Tsai
Abstract: An imaging lens module includes an imaging lens assembly, an image sensor and a plastic lens barrel. The image sensor is disposed on an image side of the imaging lens assembly and has an image sensing surface through which an optical axis of the imaging lens assembly passes. The plastic lens barrel includes an object-end portion, a bottom portion, a first inner hole portion and a second inner hole portion. An object-end surface of the object-end portion faces towards an object side direction of the imaging lens assembly. A tapered surface of the object-end portion is tapered off towards the object-end surface. The bottom portion is located on an image side of the object-end portion. The imaging lens assembly is disposed in the first inner hole portion. The second inner hole portion located on an image side of the first inner hole portion and includes an optical aligning structure.
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公开(公告)号：US11199677B2
公开(公告)日：2021-12-14
申请号：US16853117
申请日：2020-04-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin An Chang , Ming-Ta Chou , Chun-Hua Tsai
Abstract: An imaging lens module includes an imaging lens assembly, an image sensor and a plastic lens barrel. The image sensor is disposed on an image side of the imaging lens assembly and has an image sensing surface through which an optical axis of the imaging lens assembly passes. The plastic lens barrel includes an object-end portion, a bottom portion, a first inner hole portion and a second inner hole portion. An object-end surface of the object-end portion faces towards an object side direction of the imaging lens assembly. A tapered surface of the object-end portion is tapered off towards the object-end surface. The bottom portion is located on an image side of the object-end portion. The imaging lens assembly is disposed in the first inner hole portion. The second inner hole portion located on an image side of the first inner hole portion and includes an optical aligning structure.
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公开(公告)号：US12235509B2
公开(公告)日：2025-02-25
申请号：US18378456
申请日：2023-10-10
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin An Chang , Ming-Ta Chou
Abstract: An imaging lens system has an optical axis and includes a plastic lens barrel and an imaging lens assembly disposed in the plastic lens barrel. The plastic lens barrel surrounds the optical axis and includes an object-side surface, an image-side surface, an inner annular portion and an outer annular portion. The object-side and image-side surfaces are oppositely disposed and substantially perpendicular to the optical axis. The inner and outer annular portions are connected to the object-side and image-side surfaces. The inner annular portion has an inner parallel annular surface, and the outer annular portion has a first outer annular surface and a gate trace. The imaging lens assembly includes a plurality of imaging lens elements. One of the imaging lens elements has an outer diameter larger than π2 millimeters. The one of the imaging lens elements has an outer edge in physical contact with the inner parallel annular surface.
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公开(公告)号：US11874585B2
公开(公告)日：2024-01-16
申请号：US18111833
申请日：2023-02-20
Applicant: LARGAN PRECISION CO., LTD.
Inventor： Lin An Chang , Pei-Chi Chang , Ming-Ta Chou
IPC: G03B17/17
CPC classification number: G03B17/17
Abstract: An image capturing unit includes an imaging element and a dual-shot injection-molded optical folding element that are adjacent to each other. The imaging element is configured for an imaging light to pass through. The dual-shot injection-molded optical folding element includes a first part and a second part. The first part is made of transparent material. The first part has a reflective surface configured to reflect the imaging light. The second part is made of opaque material, and the second part is fixed at periphery of the first part. The second part includes a supporting portion configured to support the dual-shot injection-molded optical folding element. The supporting portion maintains the dual-shot injection-molded optical folding element at a predetermined position corresponding to the imaging element through mechanism assembly.
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