Patents by Inventor Lin An

Lin An has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250130396
    Abstract: An imaging lens assembly has an optical axis and includes a plastic lens element set. The plastic lens element set includes two plastic lens elements and at least one anti-reflective layer. The two plastic lens elements, in order from an object side to an image side along the optical axis are a first plastic lens element and a second plastic lens element. The anti-reflective layer has a nanostructure and is disposed on at least one of an image-side surface of the first plastic lens element and an object-side surface of the second plastic lens element.
    Type: Application
    Filed: December 23, 2024
    Publication date: April 24, 2025
    Inventors: Chien-Pang CHANG, Wen-Yu TSAI, Lin-An CHANG, Ming-Ta CHOU, Kuo-Chiang CHU
  • Publication number: 20250130408
    Abstract: A plastic light-folding element includes an incident surface, an exit surface, at least one reflective surface, at least one connecting surface and at least one gate vestige structure. The incident surface is configured to lead an imaging light enter the plastic light-folding element. The exit surface is configured to lead the imaging light exit the plastic light-folding element. The reflective surface is configured to fold the imaging light. The connecting surface is connected to the incident surface, the exit surface and the reflective surface. The gate vestige structure is disposed on the connecting surface. At least one of the incident surface, the exit surface and the reflective surface includes an optical portion and an arc step structure, the arc step structure is disposed on a periphery of the optical portion, and an arc is formed by the arc step structure centered on the optical portion.
    Type: Application
    Filed: December 24, 2024
    Publication date: April 24, 2025
    Inventors: Pei-Chi CHANG, Wei-Chun LO, Po-Lun HSU, Lin-An CHANG, Ming-Ta CHOU
  • Publication number: 20250116916
    Abstract: A camera module includes an imaging lens assembly, an image sensor and a magnet assembling mechanism. The image sensor is for receiving an image signal of the imaging lens assembly. The magnet assembling mechanism is for defining a status of the image signal of the imaging lens assembly corresponding to the image sensor, wherein the magnet assembling mechanism includes a magnet holder, a magnet and an opaque layer. The magnet is disposed at the magnet holder. The opaque layer is disposed on an outer surface of the magnet.
    Type: Application
    Filed: August 29, 2024
    Publication date: April 10, 2025
    Inventors: Lin-An CHANG, Ming-Ta CHOU, Te-Sheng TSENG
  • Patent number: 12265277
    Abstract: An imaging lens module has an optical axis, an object side and an image side. The imaging lens module includes a plastic barrel, an optical lens assembly, an image-side assembled element and a light blocking element assembly. The plastic barrel includes a first contacting surface, which is close to an image-side end of the plastic barrel. The image-side assembled element is disposed close to the image-side end of the plastic barrel. The image-side assembled element is in a tube shape and extends from the object side to the image side. The image-side assembled element includes a second contacting surface and an inner protruding portion, and the second contacting surface is disposed close to an object-side end of the image-side assembled element and correspondingly to the first contacting surface. The plastic barrel and the image-side assembled element contact each other via the first contacting surface and the second contacting surface.
    Type: Grant
    Filed: February 6, 2023
    Date of Patent: April 1, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chien-Hsun Wu, Lin-An Chang, Ming-Ta Chou
  • Publication number: 20250102770
    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.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 27, 2025
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hsuan-Chin HUANG, Lin An CHANG, Ming-Ta CHOU, Chun-Tang TSAI
  • Patent number: 12253656
    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.
    Type: Grant
    Filed: November 22, 2023
    Date of Patent: March 18, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Min-Chun Liao, Lin An Chang, Ming-Ta Chou, Jyun-Jia Cheng, Cheng-Feng Lin, Ming-Shun Chang
  • Patent number: 12235509
    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 ?2 millimeters. The one of the imaging lens elements has an outer edge in physical contact with the inner parallel annular surface.
    Type: Grant
    Filed: October 10, 2023
    Date of Patent: February 25, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Lin An Chang, Ming-Ta Chou
  • Patent number: 12216332
    Abstract: An imaging lens assembly has an optical axis and includes a plastic lens element set. The plastic lens element set includes two plastic lens elements and at least one anti-reflective layer. The two plastic lens elements, in order from an object side to an image side along the optical axis are a first plastic lens element and a second plastic lens element. The anti-reflective layer has a nanostructure and is disposed on at least one of an image-side surface of the first plastic lens element and an object-side surface of the second plastic lens element.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: February 4, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chien-Pang Chang, Wen-Yu Tsai, Lin-An Chang, Ming-Ta Chou, Kuo-Chiang Chu
  • Patent number: 12216257
    Abstract: A plastic light-folding element includes an incident surface, an exit surface, at least one reflective surface, at least one connecting surface and at least one gate vestige structure. The incident surface is configured to lead an imaging light enter the plastic light-folding element. The exit surface is configured to lead the imaging light exit the plastic light-folding element. The reflective surface is configured to fold the imaging light. The connecting surface is connected to the incident surface, the exit surface and the reflective surface. The gate vestige structure is disposed on the connecting surface. At least one of the incident surface, the exit surface and the reflective surface includes an optical portion and an arc step structure, the arc step structure is disposed on a periphery of the optical portion, and an arc is formed by the arc step structure centered on the optical portion.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: February 4, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Pei-Chi Chang, Wei-Chun Lo, Po-Lun Hsu, Lin-An Chang, Ming-Ta Chou
  • Patent number: 12204075
    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.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: January 21, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hsuan-Chin Huang, Lin An Chang, Ming-Ta Chou, Chun-Hua Tsai
  • Patent number: 12189273
    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.
    Type: Grant
    Filed: December 5, 2023
    Date of Patent: January 7, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Lin An Chang, Pei-Chi Chang, Ming-Ta Chou
  • Publication number: 20240427141
    Abstract: A camera module includes a unitary element, an optical image lens assembly, a fixed member and a driving member. The unitary element has an object-side opening. The optical image lens assembly is disposed in a containing space and has an optical axis. The fixed member is for accommodating the unitary element and includes a base and a cover, and the cover has a through hole and is connected with the base. The driving member is for driving the unitary element to move relative to the fixed member. The unitary element includes a reverse inclined structure including at least two annular concave structures. The at least two annular concave structures are arranged in order from the object-side opening to an image side, wherein a sectional surface of each of the annular concave structures passing through the optical axis includes a valley point and two concave ends.
    Type: Application
    Filed: September 4, 2024
    Publication date: December 26, 2024
    Inventors: Cheng-Feng LIN, Lin-An CHANG, Ming-Ta CHOU
  • Patent number: 12174451
    Abstract: An imaging lens assembly module includes an imaging lens element set, a lens carrier and a light blocking structure. The imaging lens element set has an optical axis. At least one lens element of the lens elements is disposed in the lens carrier. The light blocking structure includes a light blocking opening. The optical axis passes through the light blocking opening, and the light blocking opening includes at least two arc portions and a shrinking portion. Each of the arc portions has a first curvature radius for defining a maximum diameter of the light blocking opening. The shrinking portion is connected to the arc portions for forming the light blocking opening into a non-circular shape. The shrinking portion includes at least one protruding arc which extends and shrinks gradually from the shrinking portion to the optical axis, and the protruding arc has a second curvature radius.
    Type: Grant
    Filed: November 8, 2023
    Date of Patent: December 24, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Lin-An Chang, Ming-Ta Chou, Shu-Yun Yang, Cheng-Feng Lin
  • Publication number: 20240397178
    Abstract: A camera module includes an imaging lens assembly, an image sensor, a first reflecting member and a first driving apparatus. The imaging lens assembly is for converging an imaging light on an image surface. The image sensor is disposed on the image surface. The first reflecting member is located on an image side of the imaging lens assembly, the first reflecting member is for folding the imaging light, and has a first translational degrees of freedom. The first reflecting member is assembled on the first driving apparatus, and the first driving apparatus is for driving the first reflecting member moving along the first translational degrees of freedom.
    Type: Application
    Filed: August 1, 2024
    Publication date: November 28, 2024
    Inventors: Lin-An CHANG, Ming-Ta CHOU
  • Publication number: 20240388784
    Abstract: A camera module includes an imaging lens assembly, an image sensor and an optical plate. The image sensor is disposed on an image surface of the imaging lens assembly. The optical plate is disposed between the imaging lens assembly and the image sensor, and includes a substrate and at least one anti-reflection layer. The substrate has an object-side surface and an image-side surface, the object-side surface faces towards an object side, the image-side surface faces towards an image side, and the object-side surface is parallel with the image-side surface. The at least one anti-reflection layer is disposed on the object-side surface or the image-side surface of the substrate, the anti-reflection layer includes a nanocrystal structure layer and an optical-connecting layer, wherein the nanocrystal structure layer includes a metal oxide crystal, the optical-connecting layer connects the substrate and the nanocrystal structure layer.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Inventors: Wen-Yu TSAI, Chien-Pang CHANG, Lin-An CHANG, Ming-Ta CHOU, Kuo-Chiang CHU
  • Publication number: 20240353649
    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.
    Type: Application
    Filed: July 2, 2024
    Publication date: October 24, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Tang TSAI, Lin An CHANG, Ming-Ta CHOU, Ming-Shun CHANG
  • Publication number: 20240353656
    Abstract: An imaging lens assembly module includes an imaging lens assembly, a light path folding element and a plastic assembling element. The imaging lens assembly includes an optical lens element. The light path folding element has a light incident surface, a light exiting surface and an optical reflecting surface. The plastic assembling element includes an assembling surface, a first surface and a second surface. The assembling surface is physically contacted with the light path folding element. Both the first surface and the second surface are disposed towards the light path folding element, and the second surface and the first surface are disposed adjacent to each other. The second surface and the optical reflecting surface are correspondingly disposed. The second surface includes a protruding structure array, and the protruding structure array includes at least seven protruding structures arranged at equal intervals.
    Type: Application
    Filed: April 16, 2024
    Publication date: October 24, 2024
    Inventors: Wei-Che TUNG, Lin-An CHANG, Wen-Yu TSAI, Chien-Pang CHANG, Kuo-Chiang CHU
  • Publication number: 20240323511
    Abstract: A camera module includes a fixed base, a carrier, an elastic element, an imaging lens, a coil, a magnetic element, a connection wire and a light-blocking coating. The carrier is disposed opposite to the fixed base and has a bobbin. The elastic element is connected to the fixed base and the carrier so as to provide freedom of movement of the carrier with respect to the fixed base. The imaging lens is disposed on the carrier and has an optical axis. The coil is disposed on the carrier. The magnetic element is disposed corresponding to the coil so as to provide a driving force for moving the carrier. The connection wire is disposed on the bobbin and electrically connected to the elastic element and the coil, and the connection wire has at least part facing towards the optical axis where the light-blocking coating is disposed.
    Type: Application
    Filed: May 28, 2024
    Publication date: September 26, 2024
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Lin An CHANG, Te-Sheng TSENG, Ming-Ta CHOU
  • Patent number: 12088899
    Abstract: A camera module includes a fixed component, an optical folding component, a first imaging unit, a second imaging unit, and a driving device. The optical folding component is disposed on the fixed component. The optical folding component has a reflection surface disposed at an image side of an optical curved surface. The first imaging unit is disposed at an image side of the optical folding component. The second imaging unit is disposed between the optical folding component and the first imaging unit. The driving device move the first lens carrier with respect to the fixed component. The optical curved surface is an object-side surface of the optical folding component. The optical folding component has positive refractive power through the optical curved surface.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: September 10, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Lin An Chang, Ming-Ta Chou, Te-Sheng Tseng
  • Patent number: 12081853
    Abstract: A camera module includes an imaging lens assembly, an image sensor and an optical plate. The image sensor is disposed on an image surface of the imaging lens assembly. The optical plate is disposed between the imaging lens assembly and the image sensor, and includes a substrate and at least one anti-reflection layer. The substrate has an object-side surface and an image-side surface, the object-side surface faces towards an object side, the image-side surface faces towards an image side, and the object-side surface is parallel with the image-side surface. The at least one anti-reflection layer is disposed on the object-side surface or the image-side surface of the substrate, the anti-reflection layer includes a nanocrystal structure layer and an optical-connecting layer, wherein the nanocrystal structure layer includes a metal oxide crystal, the optical-connecting layer connects the substrate and the nanocrystal structure layer.
    Type: Grant
    Filed: May 18, 2022
    Date of Patent: September 3, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Wen-Yu Tsai, Chien-Pang Chang, Lin-An Chang, Ming-Ta Chou, Kuo-Chiang Chu