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: 20230019613
    Abstract: An imaging lens module includes a plastic lens barrel, a first optical element assembly and a second optical element assembly, wherein both of the first optical element assembly and the second optical element assembly are disposed in the plastic lens barrel. The plastic lens barrel includes a first inner annular surface and a second inner annular surface. The first inner annular surface forms a first receiving space. The second inner annular surface forms a second receiving space. The first optical element assembly is disposed in the first receiving space and includes a plurality of optical lens elements and a first retainer. The second optical element assembly is disposed in the second receiving space and includes a first light blocking sheet and a second retainer.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Inventors: Chien-Hsun WU, Lin-An CHANG, Ming-Ta CHOU
  • Publication number: 20220407993
    Abstract: A camera module includes an imaging lens assembly module and an image sensor. The image sensor is disposed on an image surface of the imaging lens assembly module and includes a photoelectric converting layer, a micro lens arrays layer, a light filtering layer and an anti-reflecting layer. The photoelectric converting layer is for converting a light signal to an electric signal. The micro lens arrays layer is for converging an energy of the imaging light into the photoelectric converting layer. The light filtering layer is for absorbing a light at a certain wavelength region of the imaging light. The anti-reflecting layer is disposed on a surface of at least one of the light filtering layer and the micro lens arrays layer and includes an irregular nano-crystallite structure layer and an optical connecting layer. The optical connecting layer is connected to the irregular nano-crystallite structure layer.
    Type: Application
    Filed: April 21, 2022
    Publication date: December 22, 2022
    Inventors: Wen-Yu TSAI, Chien-Pang CHANG, Lin-An CHANG, Ming-Ta CHOU, Cheng-Feng LIN, Kuo-Chiang CHU
  • Patent number: 11531181
    Abstract: An imaging lens module includes at least one plastic lens element having an optical axis, an object side and an image side. The plastic lens element includes, in order from a center to a peripheral region thereof, an optical effective portion and an outer peripheral portion. The outer peripheral portion surrounds the optical effective portion, wherein the outer peripheral portion includes, on at least one of the object side and the image side, a plurality of groove structures and a contacting surface. The contacting surface is an annular plane and perpendicular to the optical axis. The groove structures and the contacting surface are located on the same side. There is an air gap between the groove structures and at least one optical element adjacent thereto. The groove structures and the contacting surface located on the same side are not overlapped along a direction parallel to the optical axis.
    Type: Grant
    Filed: August 31, 2019
    Date of Patent: December 20, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Lin-An Chang, Ruei-Yang Luo
  • Publication number: 20220397807
    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: Application
    Filed: August 26, 2021
    Publication date: December 15, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Lin An CHANG, Pei-Chi CHANG, Ming-Ta CHOU
  • Publication number: 20220400193
    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: May 18, 2022
    Publication date: December 15, 2022
    Inventors: Wen-Yu TSAI, Chien-Pang CHANG, Lin-An CHANG, Ming-Ta CHOU, Kuo-Chiang CHU
  • Publication number: 20220394159
    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: Application
    Filed: August 30, 2021
    Publication date: December 8, 2022
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Lin An CHANG, Ming-Ta CHOU, Te-Sheng TSENG
  • Publication number: 20220373775
    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.
    Type: Application
    Filed: August 4, 2022
    Publication date: November 24, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Feng LIN, Lin An CHANG, Ming-Ta CHOU
  • Patent number: 11500173
    Abstract: An imaging lens module includes a plastic lens barrel, a first optical element assembly and a second optical element assembly, wherein both of the first optical element assembly and the second optical element assembly are disposed in the plastic lens barrel. The plastic lens barrel includes a first inner annular surface and a second inner annular surface. The first inner annular surface forms a first receiving space. The second inner annular surface forms a second receiving space. The first optical element assembly is disposed in the first receiving space and includes a plurality of optical lens elements and a first retainer. The second optical element assembly is disposed in the second receiving space and includes a first light blocking sheet and a second retainer.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: November 15, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chien-Hsun Wu, Lin-An Chang, Ming-Ta Chou
  • Patent number: 11442257
    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.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: September 13, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Feng Lin, Lin An Chang, Ming-Ta Chou
  • Patent number: 11431883
    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: Grant
    Filed: November 13, 2020
    Date of Patent: August 30, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Lin-An Chang, Ming-Ta Chou
  • Publication number: 20220272241
    Abstract: A camera module includes a housing, a unitary element, an optical lens assembly, an image-side light blocking assembly and a driving device. The unitary element is one-piece formed from a lens carrier and a lens barrel and movably disposed in the housing. The optical lens assembly is disposed in the unitary element. The image-side light blocking assembly includes at least one light blocking sheet, and the image-side light blocking assembly does not contact the optical lens assembly. The driving device is disposed between the housing and the unitary element. The driving device drives the unitary element, the optical lens assembly and the image-side light blocking assembly to move in an optical axis direction parallel to an optical axis of the optical lens assembly by electromagnetic force. A minimal inner opening of the unitary element is located between the optical lens assembly and the image-side light blocking assembly.
    Type: Application
    Filed: May 11, 2022
    Publication date: August 25, 2022
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Lin An CHANG, Ming-Ta CHOU
  • Publication number: 20220244507
    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: January 14, 2022
    Publication date: August 4, 2022
    Inventors: Pei-Chi CHANG, Wei-Chun LO, Po-Lun HSU, Lin-An CHANG, Ming-Ta CHOU
  • Publication number: 20220239835
    Abstract: A reflection module capable of image stabilization includes a reflecting element, a rotatable holder, a fixed base, a spherical supporting structure, an auxiliary supporting structure and an image stabilizing actuator. The reflecting element having a reflecting surface for folding optical path of incident light is disposed on the rotatable holder. The fixed base is connected to the rotatable holder via an elastic element. The spherical supporting structure is disposed between the rotatable holder and the fixed base. The auxiliary supporting structure disposed on at least one of the rotatable holder and the fixed base and corresponds to the spherical supporting structure. At least part of the image stabilizing actuator is disposed on the rotatable holder for driving the rotatable holder to rotate by taking the spherical supporting structure as rotation center. The spherical supporting structure is a ball having at least three contact points with the auxiliary supporting structure.
    Type: Application
    Filed: April 18, 2022
    Publication date: July 28, 2022
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Lin An CHANG, Hao Jan CHEN, Ming-Ta CHOU, Chen-Yi HUANG
  • Publication number: 20220232165
    Abstract: An optical image stabilizer includes an electric circuit member, an image sensor, a driving member and a pressing member. The electric circuit member includes a fixed part, a movable part and a connection part. The fixed part surrounds the movable part. The connection part is connected to the fixed part and the movable part, and the movable part is movable through the connection part. The image sensor is electrically connected to the electric circuit member and disposed on the movable part. The driving member and the pressing member are coupled to the movable part to respectively move and keep the movable part. The connection part includes wire structures connected to and located between the fixed part and the movable part. The wire structures with pliability are connected to the movable part with no physical support. The wire structures each includes a circuit layer and an insulation layer stacked together.
    Type: Application
    Filed: June 29, 2021
    Publication date: July 21, 2022
    Applicant: LARGAN DIGITAL CO., LTD.
    Inventors: Chen-Yi HUANG, Lin An CHANG, Ming-Ta CHOU
  • Publication number: 20220196969
    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 8, 2021
    Publication date: June 23, 2022
    Inventors: Chien-Pang CHANG, Wen-Yu TSAI, Lin-An CHANG, Ming-Ta CHOU, Kuo-Chiang CHU
  • Publication number: 20220196993
    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: Application
    Filed: June 25, 2021
    Publication date: June 23, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Min-Chun LIAO, Lin An CHANG, Ming-Ta CHOU, Jyun-Jia CHENG, Cheng-Feng LIN, Ming-Shun CHANG
  • Publication number: 20220187560
    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: February 24, 2021
    Publication date: June 16, 2022
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Hua TSAI, Lin An CHANG, Ming-Ta CHOU, Ming-Shun CHANG
  • Patent number: 11363175
    Abstract: A camera module includes a housing, a unitary element, an optical lens assembly, an image-side light blocking assembly and a driving device. The unitary element is one-piece formed from a lens carrier and a lens barrel and movably disposed in the housing. The optical lens assembly is disposed in the unitary element. The image-side light blocking assembly includes at least one light blocking sheet, and the image-side light blocking assembly does not contact the optical lens assembly. The driving device is disposed between the housing and the unitary element. The driving device drives the unitary element, the optical lens assembly and the image-side light blocking assembly to move in an optical axis direction parallel to an optical axis of the optical lens assembly by electromagnetic force. A minimal inner opening of the unitary element is located between the optical lens assembly and the image-side light blocking assembly.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: June 14, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Lin An Chang, Ming-Ta Chou
  • Publication number: 20220179290
    Abstract: A plastic barrel, which surrounds a central axis, includes an object-side portion and a tubular portion. The object-side portion includes an object-side opening and a reverse inclined structure. The reverse inclined structure surrounds the object-side opening and includes a reverse inclined surface and at least one annular concave structure. The at least one annular concave structure is disposed on an object side of the reverse inclined surface and recessed from the object-side opening along a direction away from the central axis, wherein a sectional surface of the at least one annular concave structure passing through the central axis includes a valley point and two concave ends, and the two concave ends are disposed on an object side and an image side of the valley point, respectively. The tubular portion is connected to the object-side portion and extends to the image side.
    Type: Application
    Filed: February 25, 2022
    Publication date: June 9, 2022
    Inventors: Cheng-Feng LIN, Lin-An CHANG, Hsiang-Chi TANG
  • Patent number: 11353777
    Abstract: A plastic barrel, which surrounds a central axis, includes an object-side portion and a tubular portion. The object-side portion includes an object-side opening and a reverse inclined structure. The reverse inclined structure surrounds the object-side opening and includes a reverse inclined surface and at least one annular concave structure. The at least one annular concave structure is disposed on an object side of the reverse inclined surface and recessed from the object-side opening along a direction away from the central axis, wherein a sectional surface of the at least one annular concave structure passing through the central axis includes a valley point and two concave ends, and the two concave ends are disposed on an object side and an image side of the valley point, respectively. The tubular portion is connected to the object-side portion and extends to the image side.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: June 7, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Feng Lin, Lin-An Chang, Hsiang-Chi Tang