Patents by Inventor Chao-Chang Hu

Chao-Chang Hu 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: 20220066129
    Abstract: An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, and a drive assembly. The movable part is connected to an optical element that includes an optical axis. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: Shu-Shan CHEN, Chieh-An CHANG, Pai-Jui CHENG, Chao-Chang HU
  • Publication number: 20220070351
    Abstract: An optical element drive mechanism is provided. The optical element drive mechanism includes an immovable part, a movable part, and a drive assembly. The movable part is connected to an optical element that includes an optical axis. The movable part is movable relative to the immovable part. The drive assembly drives the movable part to move relative to the immovable part.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: Pai-Jui CHENG, Shu-Shan CHEN, Chieh-An CHANG, Chao-Chang HU
  • Patent number: 11262528
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism has a main axis, and includes a fixed portion, a movable portion, and a driving assembly. The fixed portion includes a housing, a base, and a frame. The base is fixedly connected to the housing along the main axis. The frame is disposed in the housing, and has a plurality of protruding columns extending along the main axis. The protruding columns have a first section and a second section, and the first section is closer to the base than the second section. The movable portion is movable relative to the fixed portion, and carries an optical element. The shortest distance between the first section and the movable portion is longer than the shortest distance between the second section and the movable portion. The driving assembly drives the movable portion to move relative to the fixed portion.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 1, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: You-Zhen Lin, Liang-Ting Ho, Chao-Chang Hu
  • Patent number: 11256065
    Abstract: The tri-axis close-loop feedback controlling module for electromagnetic lens driving device includes a 6-pin Hall element. Two pins of the Hall element are coupled to an auto-focus module for providing a current to drive the auto-focus module to conduct auto-focusing operations along the Z-axis; while other four pins of the Hall element are coupled to a control unit. The control unit detects the X-Y axial positions of the auto-focus module relative to an OIS module and generates a control signal which is then sent to the Hall element. Therefore, the Hall element not only can provide its own feedback controlling function according to the Z-axial position of lens, but also can drive the auto-focus module based on the control signal corresponding to the X-Y axial positions of the auto-focus module, so as to achieve the goal of tri-axis close-loop feedback controlling for the electromagnetic lens driving device.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: February 22, 2022
    Assignee: TDK Taiwan Corp.
    Inventors: Shu-Shan Chen, Chao-Chang Hu, Wen-Chang Lin
  • Patent number: 11256066
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a magnetic sensed assembly, a first sensing element, and a magnetically permeable element. The movable portion is connected to an optical element which corresponds to incident light. The movable portion is movably connected to the fixed portion. The magnetic sensed assembly includes a first sensed portion having a first magnetic polar direction. The first sensing element is corresponding to the magnetic sensed assembly and is used to detect the rotation of the movable portion relative to the fixed portion, with a first rotational axis extending in a first direction that is different from an incident direction of the incident light and the first magnetic polar direction. The magnetically permeable element is corresponding to the first sensing magnet.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 22, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Shu-Shan Chen, Cheng-Kai Yu
  • Patent number: 11256107
    Abstract: A lens driving apparatus with a lens portion having at least one lens, a base portion on which an image sensor detecting light coming through said lens portion can be fixed, a driving portion capable of relatively moving said lens portion in a vertical direction to a light axis of said lens portion and in a parallel direction to the light axis of said lens portion with respect to said base portion, and at least three suspension wires connecting a focus portion including said lens portion and said base portion so as to allow a relative movement. The suspension wires are arranged outside a magnet of said driving portion along the vertical direction to the light axis.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: February 22, 2022
    Assignee: TDK Taiwan Corporation
    Inventors: Chao-Chang Hu, Fu-Yuan Wu, Yi-Lang Chan
  • Publication number: 20220050357
    Abstract: An optical system is provided, including a first optical module, a second optical module, and a light-quantity adjustment module. The first optical module, the second optical module, and the light-quantity adjustment module are arranged in a direction of an optical axis. The first optical module and the second optical module are movable in the direction of the optical axis.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 17, 2022
    Inventors: Chao-Hsi WANG, Shu-Shan CHEN, Chao-Chang HU, Chih-Wei WENG
  • Publication number: 20220035121
    Abstract: A camera module is provided, including a holder, a base, a bottom, an image sensor, and a first biasing element. The holder holds an optical lens and is disposed on the base. The bottom supports the image sensor and connects to the base via the first biasing element. The bottom and the image sensor can be moved with respect to the base by the first biasing element.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Inventors: Chao-Chang HU, Chen-Hsien FAN, Yi-Liang CHAN
  • Publication number: 20220026666
    Abstract: An optical system is provided. The optical system includes a fixed portion and a movable portion. The movable portion is movable relative to the fixed portion and includes: a first movable portion and a second movable portion. The first movable portion is configured to connect a first optical element. The second movable portion is configured to connect a second optical element and is movable relative to the first movable portion. The movable portion also includes a third optical element disposed corresponding to the first optical element and the second optical element. Light passes through the first optical element, the second optical element and the third optical element.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 27, 2022
    Inventors: Chao-Chang HU, Chih-Wei WENG, Shu-Shan CHEN, Chao-Hsi WANG
  • Publication number: 20220026665
    Abstract: An optical element driving mechanism is provided in the present disclosure. The optical element driving mechanism includes a fixed portion and a movable portion. The movable portion moves relative to the fixed portion. The movable portion includes a first movable assembly and a second movable assembly. The first movable assembly is connected to a first optical element. The second movable assembly is connected to a second optical element. The first movable assembly and the second movable assembly are movable relative to each other.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 27, 2022
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Chih-Wei WENG
  • Patent number: 11226469
    Abstract: An optical driving mechanism is provided, configured to drive an optical element, including a fixed portion, a movable portion, a frame assembly, and a biasing element. The fixed portion includes a base which has a central axis. The movable portion is configured to sustain the optical element and is movable relative to the fixed portion. The frame assembly connects the fixed portion and the movable portion and includes a plurality of string arms, wherein the string arms form at least one V-shaped structure. The biasing element is disposed on the frame assembly and is configured to drive the movable portion to move along a central axis direction relative to the fixed portion, wherein the string arms surround the biasing element and the biasing element is connected to at least one end portion of the V-shaped structure.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: January 18, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chen-Hsien Fan, Chao-Chang Hu
  • Patent number: 11226466
    Abstract: A driving mechanism for an optical element is provided, including a fixed portion, a movable portion, a first driving assembly, and a positioning assembly. The movable portion is movably disposed on the fixed portion, and includes an optical element. The first driving assembly is at least partially disposed on the fixed portion, and drives the optical element to move in a first direction. The positioning assembly is disposed on the fixed portion or the movable portion, wherein the positioning assembly limits the movable part to a first terminal position or a second terminal position relative to the fixed portion.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 18, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Hsi Wang, Chao-Chang Hu, Chih-Wei Weng, He-Ling Chang
  • Patent number: 11228698
    Abstract: A camera module is provided, including a lens driving mechanism, a lens unit, a circuit board, and an image sensor. The lens unit is disposed on the lens driving mechanism. The image sensor is disposed on the circuit board. The circuit board includes a metal member, an insulation layer, and a metal wire. The insulation layer is disposed between the metal member and the metal wire, and the metal wire is electrically connected to the image sensor. The lens driving module can drive the lens unit to move relative to the image sensor. The image sensor can catch the light through the lens unit.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: January 18, 2022
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan
  • Publication number: 20220011649
    Abstract: A lens driving module includes a base, a frame fixedly connected to the base, and a holder configured to connect an optical lens. The holder is movable relative to the base. The lens driving module also includes a reflecting element configured to reflect light from a light incident direction to a first direction. The first direction is perpendicular to the light incident direction, and the first direction is parallel to an optical axis of the optical lens. The lens driving module further includes a first electromagnetic driving assembly configured to force the holder to move along the first direction relative to the base. The lens driving module has multiple recesses formed on the base and arranged along the first direction. The lens driving module includes multiple the rolling elements disposed on the recesses, and the holder is moved relative to the base via the rolling elements.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Cheng-Kai YU, Chen-Hsien FAN, Chao-Chang HU, Shu-Shan CHEN, Chih-Wei WENG
  • Publication number: 20220011555
    Abstract: An optical system for receiving rays of light is provided in the present disclosure, including a first optical module. The first optical module includes a first optical element and a first optical path-adjusting element. The first optical element has a first optical axis. The rays of light pass through the first optical element in a first direction. The first optical path-adjusting element corresponds to the first optical element. The rays of light are redirected to a second direction by the first optical path-adjusting element. The first optical element and the first optical path-adjusting element are arranged along the first optical axis.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Inventors: Chih-Wei WENG, Chao-Chang HU
  • Publication number: 20220004083
    Abstract: An optical system is provided. The optical system includes a movable portion used for connecting to an optical element having an optical axis, a fixed portion, and a second driving assembly used for driving the movable portion to move relative to the fixed portion. The movable portion includes a bottom having a window corresponding to the optical axis, a first blade corresponding to the window, and is movable relative to the bottom, a connecting element movable relative to the bottom and is used for bringing the first blade to move, and a first driving assembly used for driving the connecting element to move relative to the bottom. The movable portion is movable relative to the fixed portion. The fixed portion has a polygonal structure when viewed along the optical axis.
    Type: Application
    Filed: September 21, 2021
    Publication date: January 6, 2022
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Chih-Wei WENG, Sin-Jhong SONG
  • Publication number: 20210397067
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and a support assembly. The movable portion is used for connecting to an optical element. The movable portion may move relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The movable portion is movable relative to the fixed portion through the support assembly.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 23, 2021
    Inventors: Chao-Chang HU, Chen-Hsien FAN, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO
  • Publication number: 20210397016
    Abstract: An optical element driving mechanism is provided, including a fixed part, a movable part, a first driving assembly and a first supporting assembly. The movable part is connected to an optical element, and is movable relative to the fixed part. The first driving assembly drives the movable part to move relative to the fixed part. The movable part is movable relative to the fixed part within a first limit range in a first dimension via the first supporting assembly.
    Type: Application
    Filed: November 3, 2020
    Publication date: December 23, 2021
    Inventors: Chao-Chang HU, Sung-Mao TSAI
  • Publication number: 20210396946
    Abstract: An optical element driving mechanism is provided, including a fixed part, a movable part, a driving assembly and a supporting assembly. The movable part is movable relative to the fixed part, and is connected to an optical element. The driving assembly drives the movable part to move relative to the fixed part. The movable part is movable relative to the fixed part in a moving range via the supporting assembly.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 23, 2021
    Inventors: Chao-Chang HU, Chen-Hsien FAN, Chih-Wen CHIANG, Chia-Che WU, Yu-Chiao LO
  • Patent number: 11204480
    Abstract: An optical member driving mechanism is provided. The optical member driving mechanism includes a fixed portion, a movable portion, and a driving assembly. The fixed portion includes a housing, a frame, a circuit component, and a base. The housing includes a top wall and a plurality of sidewalls, forming a first containing space. The frame is disposed in the first containing space, and has a second containing space. The circuit component is disposed in the frame. The base is connected to the housing. The movable portion is movably connected to the fixed portion, and carries an optical member. The top wall is perpendicular to an optical axis. The sidewalls extend from the top wall along the optical axis. The driving assembly drives the movable portion to move relative to the fixed portion, is electrically connected to the circuit component and partially disposed in the second containing space.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 21, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Liang-Ting Ho, Shao-Chung Chang, Sin-Jhong Song