Patents by Inventor Ming-Shun Chang

Ming-Shun Chang 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: 20250113907
    Abstract: A smart cosmetic device includes a main body, an optical detection module and a cosmetic applicator. The optical detection module is disposed within the main body and adapted to detect a predefined feature of a target object. The cosmetic applicator is disposed within the main body and has an accommodated chamber where inside cosmetic material is disposed. The cosmetic applicator is adapted to spray the cosmetic material to a specific area of the target object in accordance with the predefined feature.
    Type: Application
    Filed: September 25, 2024
    Publication date: April 10, 2025
    Applicant: PixArt Imaging Inc.
    Inventors: Ming Shun Manson Fei, Sen-Huang Huang, Ting-Yang Chang
  • Publication number: 20250068038
    Abstract: An imaging lens assembly includes a plurality of plastic lens elements, a plastic lens barrel, a retaining element, a glue material and a first void structure. The plastic lens barrel includes a plate portion and a tube portion. The plate portion has a central hole, and an optical axis of the imaging lens assembly passing through the central hole. The tube portion is extended from the plate portion which is parallel with the optical axis and defining an inner space and the plastic lens elements is disposed in the inner space. The glue material is disposed between one of the plastic lens elements and the tube portion of the plastic lens barrel, and surrounds the one of the plastic lens elements. The first void structure is extended from the central hole to the tube portion. The plastic lens elements are including a first lens element.
    Type: Application
    Filed: November 12, 2024
    Publication date: February 27, 2025
    Inventors: Heng-Yi SU, Ming-Ta CHOU, Chun-Hua TSAI, Ming-Shun CHANG
  • Patent number: 12189149
    Abstract: A light blocking sheet having a central axis includes a central hole and a plurality of inner extended portions. The central axis passes through the central hole, which is enclosed by a hole inner surface. The hole inner surface has a first corresponding circle and a second corresponding circle, wherein a diameter of the first corresponding circle is greater than a diameter of the second corresponding circle. The inner extended portions are adjacent to and surround the central hole, wherein each of the inner extended portions is extended and tapered from the first corresponding circle towards the second corresponding circle and includes an inner surface, and the inner surface includes a line pair. The line pair includes two line sections, wherein one end of one line section thereof and one end of the other line section thereof are towards the second corresponding circle and approach to each other.
    Type: Grant
    Filed: June 19, 2023
    Date of Patent: January 7, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Ming-Shun Chang, Chih-Wen Hsu
  • Publication number: 20250004242
    Abstract: An imaging lens driving module includes a lens carrier, a molded receiving base, a rolling element, a molded frame element and a driving mechanism. The lens carrier defines an optical axis. The molded receiving base is configured to receive the lens carrier. The rolling element is disposed between the lens carrier and the molded receiving base, and the lens carrier is allowed to be displaceable along the optical axis and relatively to the molded receiving base. The molded frame element is coupled with the molded receiving base for defining an inner space to receive the lens carrier. The driving mechanism drives the lens carrier displaceable along the optical axis, and includes a driving magnet and a driving coil, wherein the driving magnet is disposed on the lens carrier, the driving coil is corresponding to and faces towards the driving magnet.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Inventors: Hao-Jan CHEN, Heng-Yi SU, Ming-Ta CHOU, Chen-Yi HUANG, Ming-Shun CHANG
  • Patent number: 12169351
    Abstract: An imaging lens assembly includes a plurality of plastic lens elements, a plastic lens barrel, a retaining element, a glue material and a first void structure. The plastic lens barrel includes a plate portion and a tube portion. The plate portion has a central hole, and an optical axis of the imaging lens assembly passing through the central hole. The tube portion is extended from the plate portion which is parallel with the optical axis and defining an inner space and the plastic lens elements is disposed in the inner space. The glue material is disposed between one of the plastic lens elements and the tube portion of the plastic lens barrel, and surrounds the one of the plastic lens elements. The first void structure is extended from the central hole to the tube portion. The plastic lens elements are including a first lens element.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: December 17, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Heng-Yi Su, Ming-Ta Chou, Chun-Hua Tsai, Ming-Shun Chang
  • Publication number: 20240393564
    Abstract: An imaging lens driving module includes a base, a casing, a driving mechanism and a damping element. The base has an opening, and the casing has a central aperture corresponding to the opening. The casing includes a plastic frame portion and a metal structure portion. The plastic frame portion is coupled to the base. The metal structure portion has a plurality of pins extending towards the base. The driving mechanism is disposed in the casing. The driving mechanism is configured to drive the lens unit to move in a direction parallel to an optical axis. The damping element is connected to the pins and the lens unit. The metal structure portion is insert-molded with the plastic frame portion to form the casing. The pins are located closer to the optical axis than the other part of the metal structure portion to the optical axis.
    Type: Application
    Filed: July 31, 2024
    Publication date: November 28, 2024
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Heng Yi SU, Ming-Ta CHOU, Te-Sheng TSENG, Ming-Shun CHANG
  • Publication number: 20240393565
    Abstract: A lens driving module includes a base, a shield can, a driving mechanism, a space maintaining element and a damping element. The base has an opening. The shield can is coupled to the base and has a central aperture corresponding to the opening. The driving mechanism is disposed in the shield and configured to drive a lens unit to move. The space maintaining element is in physical contact with the shield can. The space maintaining element includes a plastic frame portion and a metal structure portion. The metal structure portion includes pins extending toward the base. The metal structure portion is insert-molded with the plastic frame portion to form the space maintaining element. The damping element is connected to the pins and the lens unit. The pins of the metal structure portion are located closer to the optical axis than part of the metal structure portion without the pins.
    Type: Application
    Filed: July 31, 2024
    Publication date: November 28, 2024
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Heng Yi SU, Ming-Ta CHOU, Te-Sheng TSENG, Ming-Shun CHANG
  • Publication number: 20240361558
    Abstract: An imaging lens system includes a plastic lens element. The plastic lens element includes an optical effective portion and an outer ring portion. The optical axis passes through the optical effective portion. The outer ring portion surrounds the optical effective portion and includes an annular groove structure, a conical surface, a flat abutting portion and a full-circle connecting portion. The annular groove structure is tapered off. Each of the conical surface and the flat abutting portion is located closer to the optical effective portion than the annular groove structure. The flat abutting portion is in physical contact with an optical element. The full-circle connecting portion is connected to the annular groove structure and located farther away from the optical effective portion than the annular groove structure. The annular groove structure has an annular bottom end surface extending in a direction substantially perpendicular to the optical axis.
    Type: Application
    Filed: July 9, 2024
    Publication date: October 31, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Shun CHANG, Heng Yi SU, Ming-Ta CHOU
  • 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
  • Patent number: 12117666
    Abstract: An imaging lens driving module includes a lens carrier, a molded receiving base, a rolling element, a molded frame element and a driving mechanism. The lens carrier defines an optical axis. The molded receiving base is configured to receive the lens carrier. The rolling element is disposed between the lens carrier and the molded receiving base, and the lens carrier is allowed to be displaceable along the optical axis and relatively to the molded receiving base. The molded frame element is coupled with the molded receiving base for defining an inner space to receive the lens carrier. The driving mechanism drives the lens carrier displaceable along the optical axis, and includes a driving magnet and a driving coil, wherein the driving magnet is disposed on the lens carrier, the driving coil is corresponding to and faces towards the driving magnet.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 15, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Hao-Jan Chen, Heng-Yi Su, Ming-Ta Chou, Chen-Yi Huang, Ming-Shun Chang
  • Patent number: 12111484
    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.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 8, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chih-Wei Cheng, Yu-Chen Lai, Ming-Ta Chou, Ming-Shun Chang
  • Patent number: 12078864
    Abstract: A lens driving module includes a base, a shield can, a driving mechanism, a space maintaining element and a damping element. The base has an opening. The shield can is coupled to the base and has a central aperture corresponding to the opening. The driving mechanism is disposed in the shield and configured to drive a lens unit to move. The space maintaining element is in physical contact with the shield can. The space maintaining element includes a plastic frame portion and a metal structure portion. The metal structure portion includes pins extending toward the base. The metal structure portion is insert-molded with the plastic frame portion to form the space maintaining element. The damping element is connected to the pins and the lens unit. The pins of the metal structure portion are located closer to the optical axis than part of the metal structure portion without the pins.
    Type: Grant
    Filed: December 8, 2022
    Date of Patent: September 3, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Heng Yi Su, Ming-Ta Chou, Te-Sheng Tseng, Ming-Shun Chang
  • Patent number: 12078865
    Abstract: An imaging lens driving module includes a base, a casing, a driving mechanism and a damping element. The base has an opening, and the casing has a central aperture corresponding to the opening. The casing includes a plastic frame portion and a metal structure portion. The plastic frame portion is coupled to the base. The metal structure portion has a plurality of pins extending towards the base. The driving mechanism is disposed in the casing. The driving mechanism is configured to drive the lens unit to move in a direction parallel to an optical axis. The damping element is connected to the pins and the lens unit. The metal structure portion is insert-molded with the plastic frame portion to form the casing. The pins are located closer to the optical axis than the other part of the metal structure portion to the optical axis.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: September 3, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Heng Yi Su, Ming-Ta Chou, Te-Sheng Tseng, Ming-Shun Chang
  • Patent number: 12066601
    Abstract: An imaging lens element assembly includes a dual molded lens element. The dual molded lens element includes a transparent portion, a light absorbing portion and a step structure. The transparent portion, in order from a center to a peripheral region, includes an optical effective area and a transparent peripheral area, wherein an optical axis of the imaging lens element assembly passes through the optical effective area, and the transparent peripheral area surrounds the optical effective area. The light absorbing portion surrounds the optical effective area and is disposed on an object side of the transparent peripheral area and includes an object-end surface and an outer inclined surface. The object-end surface faces towards an object side of the light absorbing portion, and the outer inclined surface extends from the object-end surface to an image side of the light absorbing portion and is gradually far away from the optical axis.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: August 20, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Lin-An Chang, Ming-Ta Chou, Cheng-Feng Lin, Ming-Shun Chang
  • Patent number: 12066682
    Abstract: An imaging lens system includes a plastic lens element. The plastic lens element includes an optical effective portion and an outer ring portion. The optical axis passes through the optical effective portion. The outer ring portion surrounds the optical effective portion and includes an annular groove structure, a conical surface, a flat abutting portion and a full-circle connecting portion. The annular groove structure is tapered off. Each of the conical surface and the flat abutting portion is located closer to the optical effective portion than the annular groove structure. The flat abutting portion is in physical contact with an optical element. The full-circle connecting portion is connected to the annular groove structure and located farther away from the optical effective portion than the annular groove structure. The annular groove structure has an annular bottom end surface extending in a direction substantially perpendicular to the optical axis.
    Type: Grant
    Filed: December 27, 2022
    Date of Patent: August 20, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Shun Chang, Heng Yi Su, Ming-Ta Chou
  • Publication number: 20240255723
    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.
    Type: Application
    Filed: March 13, 2024
    Publication date: August 1, 2024
    Inventors: Jyun-Jia CHENG, Ming-Ta CHOU, Ming-Shun CHANG
  • Publication number: 20240231039
    Abstract: An imaging lens module with auto focus function includes an imaging lens assembly, an electromagnetic driving component assembly and a lens carrier. The imaging lens assembly has an optical axis. The electromagnetic driving component assembly drives the imaging lens assembly to move in a direction parallel to the optical axis by a Lorentz force. The imaging lens assembly is mounted to the lens carrier such that the imaging lens assembly can be wholly driven by the Lorentz force. The lens carrier includes an object-side part, a mounting structure and a plurality of plate portions. The object-side part includes a tip-end minimal aperture configured for light to travel through; and a tapered surface which surrounds an area tapered off from image side to object side. The mounting structure and the plate portions are configured for at least a part of the electromagnetic driving component assembly to be mounted thereto.
    Type: Application
    Filed: January 2, 2024
    Publication date: July 11, 2024
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Chun-Hua TSAI, Ming-Ta CHOU, Ming-Shun CHANG
  • Publication number: 20240231033
    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.
    Type: Application
    Filed: March 27, 2024
    Publication date: July 11, 2024
    Inventors: Yu-Chen LAI, Chih-Wei CHENG, Ming-Ta CHOU, Ming-Shun CHANG
  • Patent number: 12007617
    Abstract: An imaging lens system has an optical axis. The imaging lens system includes a plurality of optical elements, a lens barrel, an optical mark structure and a curable liquid. The optical elements are arranged along the optical axis. The lens barrel surrounds the optical axis, and at least one of the optical elements is accommodated in the lens barrel. The optical mark structure is disposed on the lens barrel, and the optical mark structure includes a plurality of optical mark units arranged side by side along a circumference direction that surrounds the optical axis. The curable liquid is disposed on the optical mark structure. The curable liquid is in physical contact with at least one of the optical mark units, and one of the optical elements adjacent to the optical mark structure is fixed to the lens barrel while the curable liquid is cured.
    Type: Grant
    Filed: February 17, 2021
    Date of Patent: June 11, 2024
    Assignee: LARGAN PRECISION CO., LTD
    Inventors: Yu Chen Lai, Ming-Ta Chou, Liang Chieh Weng, Ming-Shun Chang
  • Patent number: 11994738
    Abstract: An imaging lens assembly includes a plastic barrel and an optical element set. The optical element set includes an optical lens element, a light blocking sheet and a light-shielding layer. At least one surface of an object-side peripheral surface and an image-side peripheral surface of the optical lens element includes an annular side wall. An annular abutting surface of the light blocking sheet and the annular side wall of the optical lens element are disposed correspondingly to each other. The light-shielding layer surrounds a central opening of the light blocking sheet and includes an annular concave-curved portion. The annular concave-curved portion is for retaining the light blocking sheet, so that there is no relative displacement in a direction parallel to an optical axis between the annular abutting surface of the light blocking sheet and the annular side wall of the optical lens element.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: May 28, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Jyun-Jia Cheng, Heng-Yi Su, Ming-Ta Chou, Ming-Shun Chang