Patents by Inventor Hao Jan Chen

Hao Jan Chen 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).

  • Patent number: 12313900
    Abstract: Provided is a lens assembly driving module including a photographing lens assembly, a first driving mechanism and a second driving mechanism. The photographing lens assembly includes N lens elements and has an optical axis passing through the N lens elements. The first driving mechanism drives at least N/2 said lens elements to move along the optical axis of the photographing lens assembly. The second driving mechanism enables a relative distance along the optical axis of two adjacent ones of the N lens elements to vary. Therefore, any specific one of the lens elements is capable of being driven to optimize optical imaging resolution of various fields of view independently within a real shot at different object distances.
    Type: Grant
    Filed: March 13, 2024
    Date of Patent: May 27, 2025
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Heng-Yi Su, Hao-Jan Chen, Ming-Ta Chou, Te-Sheng Tseng
  • Patent number: 12287564
    Abstract: A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.
    Type: Grant
    Filed: January 25, 2024
    Date of Patent: April 29, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan Chen, Yu Chen Lai
  • Publication number: 20250130479
    Abstract: A camera module with an optical axis includes a fixed part and a movable part movable with respect to the fixed part. The movable part includes an imaging lens including a lens carrier and a variable through hole assembly. The lens carrier is configured for at least one lens element to be disposed therein, and the lens carrier includes a mount structure. The variable through hole assembly includes a plurality of movable blades and a rotatable element. The movable blades movably and together surround the optical axis to form a through hole, and a size of the through hole is variable by movement of the movable blades. The rotatable element is connected to the movable blades and sleeved on at least part of the lens carrier to be disposed on the mount structure, and the rotatable element moves the movable blades to vary the size of the through hole.
    Type: Application
    Filed: December 26, 2024
    Publication date: April 24, 2025
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan CHEN, Yu Chen LAI, Ming-Ta CHOU
  • Patent number: 12276904
    Abstract: A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.
    Type: Grant
    Filed: January 25, 2024
    Date of Patent: April 15, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan Chen, Yu Chen Lai
  • Publication number: 20250116914
    Abstract: An imaging lens assembly module includes an imaging lens assembly and a variable aperture module. The imaging lens assembly has an optical axis. The variable aperture module includes a light blocking sheet set, a fixed element, a movable element, and an annular light blocking portion. The light blocking sheet set includes at least two light blocking sheets, wherein the at least two light blocking sheets are mutually stacked along a circumferential direction surrounding the optical axis to form a variable aperture opening. The fixed element has a sidewall structure. The annular light blocking portion surrounds the optical axis to form a fixed aperture opening.
    Type: Application
    Filed: December 19, 2024
    Publication date: April 10, 2025
    Inventors: Heng-Yi SU, Chia-Cheng TSAI, Hao-Jan CHEN, Ming-Ta CHOU
  • Publication number: 20250110386
    Abstract: An optical lens module includes an adjustable aperture assembly including rotatable blades, a driving part and an attractive force mechanism. The rotatable blades surround an optical axis of a lens element and form a light pass aperture. The driving part includes a rotatable component, a fixed component, a driving magnet and a coil. The rotatable component rotates the rotatable blades for adjusting an aperture size of the light pass aperture. The driving magnet is disposed on the rotatable component. The coil corresponds to the driving magnet to rotate the rotatable component. The attractive force mechanism provides an attractive force between the rotatable component and the fixed component and provides a driving force exerted on the rotatable blades for maintaining the light pass aperture in an enlarged state. The attractive force includes a magnetic force exerted by the rotatable component on a first magnetic element fixed on the fixed component.
    Type: Application
    Filed: April 22, 2024
    Publication date: April 3, 2025
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Zheng-Zhi HONG, Hsiu-Yi HSIAO, Hao Jan CHEN, Ming-Ta CHOU
  • Patent number: 12216396
    Abstract: An imaging lens with an optical axis includes a lens carrier and a variable through hole assembly. The lens carrier is configured for at least one lens element to be disposed therein, and the lens carrier includes a mount structure. The variable through hole assembly includes a plurality of movable blades and a rotatable element. The movable blades movably and together surround the optical axis to form a through hole, and a size of the through hole is variable by movement of the movable blades. The rotatable element is connected to the movable blades, and the rotatable element moves the movable blades to vary the size of the through hole. At least one of the movable blades and the rotatable element of the variable through hole assembly is disposed on the mount structure.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: February 4, 2025
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan Chen, Yu Chen Lai, Ming-Ta Chou
  • 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
  • Publication number: 20240411206
    Abstract: A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.
    Type: Application
    Filed: August 21, 2024
    Publication date: December 12, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan CHEN, Yu Chen LAI
  • Publication number: 20240402574
    Abstract: A light pass aperture module, in order along a central axis, includes a blade assembly and a cap. The blade assembly includes a plurality of blades. The blades form a light pass aperture, and the light pass aperture is variable in size with the central axis as a center. The cap covers the blade assembly. The cap has a through hole, and the through hole is disposed corresponding to the light pass aperture. The cap includes a surface level down structure. The surface level down structure is disposed corresponding to one of the blades, and the surface level down structure is closer to the one blade than the through hole.
    Type: Application
    Filed: August 9, 2024
    Publication date: December 5, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan CHEN, Yu Chen LAI
  • Publication number: 20240369806
    Abstract: A lens driving module is configured to provide an imaging lens system with auto-focus functionality. The imaging lens system is disposed between a preloading element and a driving base of the lens driving module. The preloading element includes an injection molded part and a ferromagnetic part partially embedded in the injection molded part. A rollable element is disposed in each of mounting structures of the injection molded part and in contact with a displaceable lens carrier of the imaging lens system. The ferromagnetic part and a magnet disposed on the displaceable lens carrier together generate a magnetic attraction force, such that the displaceable lens carrier exerts a preloading force on the rollable element. The driving base includes a driving coil and an electrical wiring pattern. The driving coil corresponds to the magnet for generating a driving force to drive the displaceable lens carrier to move along the optical axis.
    Type: Application
    Filed: July 16, 2024
    Publication date: November 7, 2024
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Hao Jan CHEN, Yu Chen LAI, Ming-Ta CHOU, Te-Sheng TSENG
  • 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: 12105410
    Abstract: A light pass aperture module, in order along a central axis, includes a blade assembly and a cap. The blade assembly includes a plurality of blades. The blades form a light pass aperture, and the light pass aperture is variable in size with the central axis as a center. The cap covers the blade assembly. The cap has a through hole, and the through hole is disposed corresponding to the light pass aperture. The cap includes a surface level down structure. The surface level down structure is disposed corresponding to one of the blades, and the surface level down structure is closer to the one blade than the through hole.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: October 1, 2024
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan Chen, Yu Chen Lai
  • Patent number: 12066691
    Abstract: A lens driving module is configured to provide an imaging lens system with auto-focus functionality. The imaging lens system is disposed between a preloading element and a driving base of the lens driving module. The preloading element includes an injection molded part and a ferromagnetic part partially embedded in the injection molded part. A rollable element is disposed in each of mounting structures of the injection molded part and in contact with a displaceable lens carrier of the imaging lens system. The ferromagnetic part and a magnet disposed on the displaceable lens carrier together generate a magnetic attraction force, such that the displaceable lens carrier exerts a preloading force on the rollable element. The driving base includes a driving coil and an electrical wiring pattern. The driving coil corresponds to the magnet for generating a driving force to drive the displaceable lens carrier to move along the optical axis.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: August 20, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Hao Jan Chen, Yu Chen Lai, Ming-Ta Chou, Te-Sheng Tseng
  • Publication number: 20240219679
    Abstract: Provided is a lens assembly driving module including a photographing lens assembly, a first driving mechanism and a second driving mechanism. The photographing lens assembly includes N lens elements and has an optical axis passing through the N lens elements. The first driving mechanism drives at least N/2 said lens elements to move along the optical axis of the photographing lens assembly. The second driving mechanism enables a relative distance along the optical axis of two adjacent ones of the N lens elements to vary. Therefore, any specific one of the lens elements is capable of being driven to optimize optical imaging resolution of various fields of view independently within a real shot at different object distances.
    Type: Application
    Filed: March 13, 2024
    Publication date: July 4, 2024
    Inventors: Heng-Yi Su, Hao-Jan Chen, Ming-Ta Chou, Te-Sheng Tseng
  • Publication number: 20240176211
    Abstract: An imaging lens assembly module includes an imaging lens assembly and a variable aperture module. The imaging lens assembly has an optical axis. The variable aperture module includes a light blocking sheet set, a fixed element, a movable element, and an annular light blocking portion. The light blocking sheet set includes at least two light blocking sheets, wherein the at least two light blocking sheets are mutually stacked along a circumferential direction surrounding the optical axis to form a variable aperture opening. The fixed element has a sidewall structure. The annular light blocking portion surrounds the optical axis to form a fixed aperture opening.
    Type: Application
    Filed: November 28, 2023
    Publication date: May 30, 2024
    Inventors: Heng-Yi SU, Chia-Cheng TSAI, Hao-Jan CHEN, Ming-Ta CHOU
  • Publication number: 20240160086
    Abstract: A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.
    Type: Application
    Filed: January 25, 2024
    Publication date: May 16, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan CHEN, Yu Chen LAI
  • Publication number: 20240160085
    Abstract: A controllable aperture stop includes a light pass portion, a fixed portion, a driving part and rollable elements. The light pass portion includes movable blades together surrounding a light pass aperture. The fixed portion has shaft structures corresponding to the movable blades. The driving part includes a rotatable element, a magnet and a coil. The rotatable element is for driving the movable blades to rotate relative to the shaft structures to adjust the size of the light pass aperture. The magnet is disposed on the rotatable element. The coil corresponds to the magnet. The magnet and the coil are to drive the rotatable element to rotate around the light pass aperture. The rollable elements are disposed between the fixed portion and the rotatable element and arranged around the light pass aperture, so the rotatable element is rotatable relative to the fixed portion.
    Type: Application
    Filed: January 25, 2024
    Publication date: May 16, 2024
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Hao Jan CHEN, Yu Chen LAI
  • Publication number: 20240152032
    Abstract: A dynamic aperture module includes a blade set and a driving portion. The blade set includes a plurality of blades, which are disposed around an optical axis to form a light through hole and rotatable for adjusting the light through hole. The driving portion includes a rotating element, at least one magnet and at least one coil. The rotating element corresponds to the blades and is configured to drive the blades to rotate, so that a dimension of the light through hole is variable. The magnet includes four polarities. The polarities of the magnet are relatively distributed along a direction surrounding the optical axis and a direction parallel to the optical axis, respectively. The coil corresponds to the magnet, and one of the magnet and the coil is disposed on the rotating element. The magnet and the coil are disposed along the direction parallel to the optical axis.
    Type: Application
    Filed: November 2, 2023
    Publication date: May 9, 2024
    Inventors: Yu-Tzu CHANG, Hao-Jan CHEN, Hsiu-Yi HSIAO, Ming-Ta CHOU
  • Patent number: 11960141
    Abstract: Provided is a lens assembly driving module including a photographing lens assembly, a first driving mechanism and a second driving mechanism. The photographing lens assembly includes N lens elements and has an optical axis passing through the N lens elements. The first driving mechanism drives at least N/2 said lens elements to move along the optical axis of the photographing lens assembly. The second driving mechanism enables a relative distance along the optical axis of two adjacent ones of the N lens elements to vary. Therefore, any specific one of the lens elements is capable of being driven to optimize optical imaging resolution of various fields of view independently within a real shot at different object distances.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: April 16, 2024
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Heng-Yi Su, Hao-Jan Chen, Ming-Ta Chou, Te-Sheng Tseng