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).

  • Patent number: 10809487
    Abstract: An optical system is provided and includes a fixed module, a movable module, a driving coil, an electrical circuit and a magnetic element. The fixed module includes a base and a circuit board, and the movable module includes an optical member holder, configured to hold an optical member. The magnetic element corresponds to the driving coil and is configured to generate an electromagnetic driving force to drive the optical member holder to move relative to the base. The driving coil and the electrical circuit are integrally formed in the circuit board. The driving coil partially overlaps the electrical circuit when viewed along a direction perpendicular to an optical axis of the optical member.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: October 20, 2020
    Assignee: TDK Taiwan Corp.
    Inventors: Shu-Shan Chen, Cheng-Kai Yu, Chao-Chang Hu
  • Publication number: 20200310070
    Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly, and a position-sensing assembly. The movable assembly corresponds to an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The position-sensing assembly is configured to sense the movement of the movable assembly relative to the fixed assembly, and the position-sensing assembly includes a sensed unit and a sensing element. The sensing element corresponds to the sensed unit. The sensed unit has a plurality of reference magnetic elements arranged in a first direction, the sensed unit and the sensing element are arranged in an arrangement direction, and the first direction is not parallel to the arrangement direction.
    Type: Application
    Filed: January 16, 2020
    Publication date: October 1, 2020
    Inventors: Yi-Cheng HSIAO, Chao-Chang HU, Che-Wei CHANG, Sin-Jhong SONG
  • Publication number: 20200301245
    Abstract: An optical system is provided and includes a light-sensing element, a reflecting unit and a first driving assembly. The reflecting unit includes a reflecting surface, configured to receive an incident light and to reflect a reflecting light. The reflecting light travels into the light-sensing element. The first driving assembly is configured to control the reflecting unit to move along a first axis direction from a first position to a second position, so as to adjust a focus position of the reflecting light on the light-sensing element, wherein the reflecting surface in the first position is parallel to the reflecting surface in the second position, and a distance between a center of the reflecting unit in the first position and the center of the reflecting unit in the second position is not zero.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Chao-Chang HU, Chih-Wei WENG, Cheng-Kai YU
  • Patent number: 10782538
    Abstract: A lens driving device is provided, including a base, a holder, a first driving mechanism disposed on the first side of the base, a second driving mechanism disposed on the second side of the base opposite the first side, and a conductive member disposed on the base. The holder is configured to sustain a lens. The first driving mechanism is configured to force the holder to move along the optical axis of the lens. The second driving mechanism includes a circuit board assembly and a shape memory alloy (SMA) wire assembly configured to force the base to move in the plane perpendicular to the optical axis. The conductive member and the circuit board assembly are connected at an electrical connection point, and the SMA wire assembly is closer to the light-incident end of the lens with respect to the electrical connection point.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: September 22, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Chi Kuo
  • Patent number: 10775596
    Abstract: A camera system including a telephoto lens module is provided. The telephoto lens module includes a first image sensor, a first assembly, and a second assembly. The first assembly includes a first driving mechanism and a reflecting member connected to the first driving mechanism. The first driving mechanism is configured to drive the reflecting member to rotate around a first axis and a second axis. The second assembly is disposed between the first assembly and the first image sensor, including a second driving mechanism and a first lens. The second driving mechanism is configured to drive the first lens to move along a third axis. The first, second, and third axes are not parallel to each other. When light enters the telephoto lens along the first axis, light is reflected by the reflecting member and through the first lens along the third axis to the first image sensor.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 15, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Cheng-Kai Yu, Chih-Wei Weng, Shu-Shan Chen
  • Publication number: 20200280658
    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: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Inventors: Chao-Chang HU, Chen-Hsien FAN
  • Patent number: 10761291
    Abstract: A lens driving mechanism is provided, configured to drive an optical lens, including a bottom plate, a movable portion, an elastic member, and a biasing assembly. The movable portion is disposed on the bottom plate and has a base and a holder, wherein the holder is configured to hold the optical lens, and the holder is movably connected to the base. The elastic member connects the movable portion to the bottom plate. The biasing assembly connects the bottom plate and the movable portion and is configured to force the movable portion to move relative to the bottom plate. When the holder moves to a lower-limit position relative to the base, the holder comes into contact with the elastic member.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: September 1, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chen-Chi Kuo, Chao-Chang Hu, Sin-Jhong Song
  • Patent number: 10761403
    Abstract: The present disclosure relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a movable portion, a first blade and a driving component. The movable portion is movably connected to the fixed portion, the first blade movably connects to the movable portion and the fixed portion, and the driving component connects to the movable portion to move the movable portion relative to the fixed portion in a first moving dimension. When the movable portion is moved relative to the fixed portion in the first moving dimension, the first blade is driven by the movable portion to move relative to the fixed portion in a second moving dimension, and the first moving dimension and the second moving dimension are different.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 1, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Hsi Wang, Chao-Chang Hu, Kuen-Wang Tsai, Chih-Wei Weng
  • Patent number: 10764475
    Abstract: A driving mechanism is provided, including a housing, a hollow frame, a holder, and a driving assembly. The frame is fixed to the housing and has a stop surface. The holder is movably disposed in the housing for holding the optical element. The driving assembly is disposed in the housing to drive the holder and the optical element moving along the optical axis of the optical element relative to the frame. Specifically, the stop surface is parallel to the optical axis to contact the holder and restrict the holder in a limit position.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: September 1, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Bing-Ru Song, Yi-Ho Chen, Chia-Pin Hsu, Chih-Wei Weng, Shin-Hua Chen, Chien-Lun Huang, Chao-Chun Chang, Shou-Jen Liu, Kun-Shih Lin, Nai-Wen Hsu, Yu-Cheng Lin, Shang-Yu Hsu, Yu-Huai Liao, Yi-Hsin Nieh, Shih-Ting Huang, Kuo-Chun Kao, Fu-Yuan Wu
  • Publication number: 20200272025
    Abstract: A control method of an optical element driving mechanism includes: providing a first coil group to a fixed assembly, wherein the first coil group includes a plurality of first coils; providing a magnetic element to be connected to a movable assembly; and controlling at least one first coil of the first coil group by a control circuit at least according to position information of the movable assembly relative to the fixed assembly to act with the magnetic element to generate an electromagnetic driving force, thereby driving the movable assembly to move relative to the fixed assembly in a first direction toward a target position.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Inventors: Chao-Chang HU, Chao-Hsi WANG, Chih-Wei WENG, Kuen-Wang TSAI, Sin-Jhong SONG
  • Publication number: 20200271895
    Abstract: A driving mechanism is provided, including a fixed part, a movable part for holding an optical element, and a driving assembly. The movable part is movable relative to the fixed part and has a first resonance frequency with respect to the fixed part. The driving assembly is configured to drive the movable part to rotate back and forth within a range relative to the fixed part.
    Type: Application
    Filed: January 9, 2020
    Publication date: August 27, 2020
    Inventors: Kai-Jing FU, Chao-Chang HU, Min-Hsiu TSAI, Mao-Kuo HSU, Juei-Hung TSAI
  • Publication number: 20200271947
    Abstract: An optical element driving mechanism includes a fixed portion, a movable portion, a moving portion, a first driving assembly and a second driving assembly. The movable portion is movable relative to the fixed portion. The moving portion is connected to an optical element having an optical axis, and is movable relative to the movable portion. The first driving assembly drives the movable portion to move relative to the fixed portion; and the second driving assembly drives the moving portion to move relative to the movable portion.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Inventors: Chao-Chang HU, Liang-Ting HO, Sin-Jhong SONG
  • Publication number: 20200271892
    Abstract: An optical element driving mechanism includes a fixed assembly, a movable assembly, a driving assembly and a circuit assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The driving assembly includes a first coil group which has a plurality of first coils and a magnetic module which has a magnetic element and a first conductive element. The circuit assembly includes a first circuit member electrically connected to the first conductive element and a second circuit member electrically connected to the first coils. When the magnetic module is located in different positions relative to the first coil group, the first conductive element is electrically connected to different first coils in sequence, so that the first coil is electrically connected to the first circuit member and the second circuit member, and other first coils remain open.
    Type: Application
    Filed: February 25, 2020
    Publication date: August 27, 2020
    Inventors: Chao-Chang HU, Chao-Hsi WANG, Chih-Wei WENG, Kuen-Wang TSAI, Sin-Jhong SONG
  • Patent number: 10754124
    Abstract: A driving mechanism for supporting an optical member is provided, including a fixed module, a movable module, a driving module disposed therebetween, and an elastic member. The driving module can drive the movable module to rotate around a first rotation axis relative to the fixed module. The elastic member includes a first connecting portion connected to the movable module, a second connecting portion connected to the fixed module, a first string portion connected to the first connecting portion, and a first buffer portion connected to the first string portion. The first string portion is disposed on the first rotation axis. The longitudinal axis of the first string portion is parallel to the first rotation axis. The first buffer portion has wave-shaped structure.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 25, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Liang-Ting Ho, Cheng-Kai Yu, Chao-Chang Hu, Chih-Wei Weng, Che-Wei Chang
  • Patent number: 10754129
    Abstract: A camera system including a telephoto lens module is provided. The telephoto lens module includes a first image sensor, a first assembly, and a second assembly. The first assembly includes a first driving mechanism and a reflecting member connected to the first driving mechanism. The first driving mechanism is configured to drive the reflecting member to rotate around a first axis and a second axis. The second assembly is disposed between the first assembly and the first image sensor, including a second driving mechanism and a first lens. The second driving mechanism is configured to drive the first lens to move along a third axis. The first, second, and third axes are not parallel to each other. When light enters the telephoto lens along the first axis, light is reflected by the reflecting member and through the first lens along the third axis to the first image sensor.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 25, 2020
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan, Cheng-Kai Yu, Chih-Wei Weng, Shu-Shan Chen
  • Patent number: 10746956
    Abstract: A circuit module is provided and includes a metal substrate, an insulating layer, and a circuit element. The metal substrate includes a main body, a bent portion and an opening. The opening is formed between the main body and the bent portion, and the bent portion is bent relative to the main body. The insulating layer is disposed on the metal substrate. The circuit element is disposed on the insulating layer and is extended across the opening.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: August 18, 2020
    Assignee: TDK Taiwan Corp.
    Inventors: Chao-Chang Hu, Yi-Liang Chan
  • Patent number: 10747088
    Abstract: A camera module is provided, including a lens driving mechanism, a lens unit, a housing, and an elastic member. The lens unit is disposed on the lens driving mechanism. The housing surrounds the lens driving mechanism. The elastic member is connected to the lens driving mechanism and comprises a metal base, a first insulation layer, and a first metal wire. The first insulation layer is disposed between the metal base and the first metal wire, and the first metal wire is electrically connected to the lens driving mechanism.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: August 18, 2020
    Assignee: TDK Taiwan Corp.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan
  • Publication number: 20200249545
    Abstract: An optical system is provided, including a light path adjustment module, an optical element driving module and a light flux adjustment module, The light path adjustment module is used for receiving light traveling in a first direction and adjusting the path of the light. The optical element driving module is used for receiving light. The light flux adjustment module is used for adjusting the light flux of the light, wherein the light flux adjustment module is disposed between the light path adjustment module and the optical element driving module.
    Type: Application
    Filed: January 13, 2020
    Publication date: August 6, 2020
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Chih-Wei WENG, Sin-Jhong SONG
  • Publication number: 20200249424
    Abstract: A driving mechanism for moving an optical element is provided, including a fixed part, a movable part, a driving assembly, and a flexible element. The movable part is connected to the optical element. The driving assembly drives the movable part to move relative to the fixed part. The flexible element is connected to the fixed part and the movable part. When the movable part moves relative to the fixed part, the flexible element deforms so that the position of the movable part relative to the fixed part can be detected.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventors: Liang-Ting HO, Chao-Chang HU, Yung-Hsien YEH, Sin-Jhong SONG
  • Publication number: 20200249421
    Abstract: A control method of a driving mechanism is provided, including: the driving mechanism provides a first electrical signal from a control assembly to the driving mechanism to move the movable portion into an initial position relative to the fixed portion, wherein the control assembly includes a control unit and a position sensing unit; the status signal of an inertia sensing unit is read; the control unit sends the status signal to the control unit to calculate a target position; the control unit provides a second electrical signal to the driving assembly according to the target position for driving the driving assembly; a position signal is sent from the position sensing unit to the control unit; the control unit provides a third electric signal to the driving assembly to drive the driving assembly according the position signal.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventors: Chao-Chang HU, Chen-Hsien FAN, Sung-Mao TSAI, Yueh-Lin LEE, Yu-Chiao LO, Mao-Kuo HSU, Ching-Chieh HUANG, Yi-Chun CHENG