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).
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Patent number: 12687761Abstract: 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: GrantFiled: August 21, 2024Date of Patent: July 21, 2026Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai
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Patent number: 12645048Abstract: An imaging lens module includes a casing, an imaging lens disposed to the casing, a lens carrier supporting the image lens, an elastic element connected to the lens carrier to provide the lens carrier with a translational degree of freedom along an optical axis, a frame connected to the elastic element such that the lens carrier is movable along the optical axis with respect to the frame, a variable through hole module coupled to the imaging lens and having a light passable hole with a variable aperture size, and a wiring assembly including a fixed wiring part at least partially located closer to the opening than the elastic element and a movable wiring part electrically connected to the fixed wiring part and the variable through hole module. The optical axis passes through lens elements of the imaging lens and the center of the variable through hole module.Type: GrantFiled: January 10, 2023Date of Patent: June 2, 2026Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Heng Yi Su, Ming-Ta Chou, Te-Sheng Tseng
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Patent number: 12474593Abstract: A camera module includes an imaging lens assembly having an optical axis and a driving device including a fixed component, a lens carrier, a magnet carrier, a first ball group, and a second ball group. The imaging lens assembly is disposed in the lens carrier. The magnet carrier has a first groove group extending parallel to the optical axis and a second groove group extending perpendicular to the optical axis. One of the fixed component and the lens carrier has a third groove group disposed opposite to the second groove group. The imaging lens assembly is movable with respect to the fixed component on a plane perpendicular to the optical axis via the second ball group disposed between the second groove group and the third groove group and along a direction parallel to the optical axis through the first ball group disposed in the first groove group.Type: GrantFiled: February 9, 2022Date of Patent: November 18, 2025Assignee: LARGAN DIGITAL CO., LTD.Inventors: Hao Jan Chen, Lin An Chang, Ming-Ta Chou, Te-Sheng Tseng
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Patent number: 12287564Abstract: 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: GrantFiled: January 25, 2024Date of Patent: April 29, 2025Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai
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Publication number: 20250130479Abstract: 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: ApplicationFiled: December 26, 2024Publication date: April 24, 2025Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI, Ming-Ta CHOU
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Patent number: 12276904Abstract: 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: GrantFiled: January 25, 2024Date of Patent: April 15, 2025Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai
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Publication number: 20250110386Abstract: 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: ApplicationFiled: April 22, 2024Publication date: April 3, 2025Applicant: LARGAN PRECISION CO., LTD.Inventors: Zheng-Zhi HONG, Hsiu-Yi HSIAO, Hao Jan CHEN, Ming-Ta CHOU
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Patent number: 12216396Abstract: 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: GrantFiled: August 15, 2022Date of Patent: February 4, 2025Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai, Ming-Ta Chou
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Publication number: 20240411206Abstract: 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: ApplicationFiled: August 21, 2024Publication date: December 12, 2024Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI
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Publication number: 20240402574Abstract: 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: ApplicationFiled: August 9, 2024Publication date: December 5, 2024Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI
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Publication number: 20240369806Abstract: 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: ApplicationFiled: July 16, 2024Publication date: November 7, 2024Applicant: LARGAN DIGITAL CO.,LTD.Inventors: Hao Jan CHEN, Yu Chen LAI, Ming-Ta CHOU, Te-Sheng TSENG
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Patent number: 12105410Abstract: 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: GrantFiled: July 5, 2023Date of Patent: October 1, 2024Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai
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Patent number: 12066691Abstract: 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: GrantFiled: April 23, 2021Date of Patent: August 20, 2024Assignee: LARGAN DIGITAL CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai, Ming-Ta Chou, Te-Sheng Tseng
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Publication number: 20240160086Abstract: 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: ApplicationFiled: January 25, 2024Publication date: May 16, 2024Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI
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Publication number: 20240160085Abstract: 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: ApplicationFiled: January 25, 2024Publication date: May 16, 2024Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI
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Patent number: 11921417Abstract: 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: GrantFiled: June 7, 2022Date of Patent: March 5, 2024Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai
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Publication number: 20230384652Abstract: 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: ApplicationFiled: July 5, 2023Publication date: November 30, 2023Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI
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Publication number: 20230341746Abstract: 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: ApplicationFiled: August 15, 2022Publication date: October 26, 2023Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI, Ming-Ta CHOU
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Publication number: 20230273504Abstract: 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: ApplicationFiled: June 7, 2022Publication date: August 31, 2023Applicant: LARGAN PRECISION CO., LTD.Inventors: Hao Jan CHEN, Yu Chen LAI
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Patent number: 11733588Abstract: 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: GrantFiled: September 1, 2022Date of Patent: August 22, 2023Assignee: LARGAN PRECISION CO., LTD.Inventors: Hao Jan Chen, Yu Chen Lai