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: 20190146178
    Abstract: An optical member driving mechanism is provided, including a first module, a second module, a driving module, and an electronic member module. The driving module can drive the second module to move relative to the first module. The electronic member module includes at least one electronic member, at least one lead frame, and a package member. The lead frame is connected to the electronic member and an external circuit outside the optical member driving mechanism. The package member has a single material and covers the electronic member and the lead frame. The lead frame is exposed from the package member, and the electronic member is not exposed therefrom.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 16, 2019
    Inventors: Chao-Chang HU, Shao-Kuang HUANG, Chih-Wei WENG, Sin-Jhong SONG
  • Publication number: 20190137781
    Abstract: A dual-lens camera system is provided, including a first lens driving module and a second lens driving module each including a lens holder for receiving a lens, at least one magnetic element, and a driving board. The driving board has at least one driving coil for acting with the magnetic element to generate an electromagnetic force to move the lens holder along a direction that is perpendicular to the optical axis of the lens. On two adjacent sides parallel to each other of the first and second lens driving modules, the magnetic elements are arranged in different configurations.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 9, 2019
    Inventors: Chao-Chang HU, Bing-Ru SONG
  • Patent number: 10281801
    Abstract: An image capturing unit is provided, including a base, a frame movably connected to the base, a lens holder movably disposed in the frame for receiving a lens, a first magnet, a first coil, a second magnet, and a second coil. When a current is applied to the first coil, a magnetic force is generated between the first magnet and the first coil to move the frame and the lens holder relative to the base. When a current is applied to the second coil, a magnetic force is generated between the second magnet and the second coil to move the lens holder relative to the frame.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: May 7, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Bing-Ru Song, Shu-Shan Chen
  • Publication number: 20190129132
    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: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Chen-Hsien Fan, Chao-Chang Hu
  • Patent number: 10269859
    Abstract: A camera module is provided, including a prism base, a prism driving mechanism, a prism unit, a lens unit, and an image sensor. The lens unit is disposed on the lens driving mechanism. The prism base includes a metal member, at least one first wiring layer, and a first insulation layer disposed between the metal member and the first wiring layer. The prism driving mechanism is electrically connected to the first wiring layer. The prism unit is connected to the prism driving mechanism, and the prism driving mechanism can drive the prism unit to rotate relative to the prism base. The image sensor can catch the light reflected by the prism unit and passing through the lens unit.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: April 23, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan
  • Publication number: 20190116317
    Abstract: A correction method for an optical mechanism having an optical member and a fixed portion is provided, including: an external apparatus measures the angle between the optical axis of the optical member and a reference surface of the fixed portion; the result of measuring the angle between the optical axis and the reference surface is compiled into data; the data is input into a control module; the control module transmits a signal to a driving module according to the data; and the driving module drives the optical member to rotate or move relative to the fixed portion upon receiving the signal. The optical mechanism does not include a sensor to detect the angle between the optical axis and the reference surface.
    Type: Application
    Filed: October 12, 2018
    Publication date: April 18, 2019
    Inventors: Chao-Chang HU, Shun-Chieh TANG, Shu-Shan CHEN, Chih-Wei WENG, Shao-Kuang HUANG
  • Publication number: 20190115818
    Abstract: An electromagnetic driving module is provided, including a first member, a second member movably connected to the first member, an electromagnetic driving assembly, and a film. The electromagnetic driving assembly includes a magnet and a coil respectively disposed on the first and second members, so as to move the second member relative to the first member. The film is disposed on a side of the magnet to reduce magnetic interference between the magnet and a magnetic element, wherein the magnetic permeability of the film is higher than the magnetic permeability of the first member.
    Type: Application
    Filed: July 30, 2018
    Publication date: April 18, 2019
    Inventors: Cheng-Kai YU, Liang-Ting HO, Shu-Shan CHEN, Chao-Chang HU
  • Publication number: 20190113621
    Abstract: A distance measuring device for measuring the distance to an object is provided, including a light-emitting module, a driving assembly disposed in the light-emitting module, and a light-receiving module. The light-emitting module has a housing, a light source disposed in the housing, a light grating element, and an optical path adjuster. The light source emits a measuring light sequentially through the optical path adjuster and the light grating element along a first axis. The driving assembly can drive the optical path adjuster or the light grating element to move relative to the housing. The light-receiving module receives the measuring light which is reflected by the object to obtain distance information of the object.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 18, 2019
    Inventors: Shu-Shan CHEN, Chao-Chang HU, Chih-Wei WENG, Sin-Jhong SONG
  • Publication number: 20190115819
    Abstract: An electromagnetic driving mechanism is provided, including a first member, a second member movably connected to the first member, an electromagnetic driving assembly, and a film. The electromagnetic driving assembly includes a magnet and a coil respectively disposed on the first and second members, so as to move the second member relative to the first member. The film is formed on the second member and has positive magnetic susceptibility.
    Type: Application
    Filed: July 30, 2018
    Publication date: April 18, 2019
    Inventors: Cheng-Kai YU, Liang-Ting HO, Shu-Shan CHEN, Chao-Chang HU
  • Patent number: 10254505
    Abstract: An electromagnetic driving device is provided, which includes a movable member, a stationary member, a suspension member, and an energy-absorbing glue. The movable member and the stationary member are arranged along a main axis. The suspension member extends along a direction parallel to the main axis, and the two ends thereof are respectively connected to the movable member and the stationary member so as to enable the movable member to be suspended over the stationary member. A segment of the suspension member is covered in the energy-absorbing glue, and the energy-absorbing glue connects the suspension member to the movable member.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: April 9, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Cheng-Kai Yu
  • Publication number: 20190086641
    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: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventors: Shu-Shan CHEN, Chao-Chang HU, Wen-Chang LIN
  • Patent number: 10230878
    Abstract: A camera module is provided, including a bottom, an electromagnetic driving assembly, and a lens assembly. The bottom includes a metal member, a first insulation layer formed on the metal member, and a first conductive layer formed on the first insulation layer. The first conductive layer is electrically connected to the electromagnetic driving assembly. The electromagnetic driving assembly can drive the lens assembly to move relative to the bottom.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: March 12, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Chen-Hsien Fan
  • Publication number: 20190072744
    Abstract: A lens module comprises a frame, a lens unit, and a driving module for driving the lens unit to move relative to the frame. The lens unit comprises a body made of plastic, at least one lens located in a center of the body, and an embedded member made of metal. The metal embedded member is embedded within a thinner rim portion of the lens unit by means of a plastic insert-molding process in such a manner that, at least one protrusion of the metal embedded member is exposed outside of the rim portion. When the lens unit moves relative to the frame, a location where the lens unit might touch the frame is one of the at least one protrusion, and therefore the structural strength, endure ability of impact and endure ability of friction at the rim portion of the lens unit are increased. In addition, the protrusion can also act as a positioning post or winding post for a coil of the driving module.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 7, 2019
    Applicant: TDK Taiwan Corp.
    Inventors: Chao-Chang Hu, Shao-Kuang Huang, Chih-Wei Weng
  • Publication number: 20190072778
    Abstract: A thin-plate-typed rotating module includes a rotating element, a driving unit and a base board. The rotating element is rotatable about a first axial direction and a second axial direction in a limited degree. The driving unit connects the rotating element for driving the rotating element to rotate about the first and second axial directions. The base board is furnished with a control module which is connected with the driving unit for controlling the driving unit to operate.
    Type: Application
    Filed: October 29, 2018
    Publication date: March 7, 2019
    Applicant: TDK Taiwan Corp.
    Inventors: Cheng Kai Yu, Chao Chang Hu, Chih Wei Weng
  • Publication number: 20190049703
    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: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Inventors: Chao-Chang HU, Chen-Hsien FAN, Cheng-Kai YU, Chih-Wei WENG, Shu-Shan CHEN
  • Patent number: 10203516
    Abstract: A dual-lens camera system is provided, including a first lens driving module and a second lens driving module each including a lens holder for receiving a lens, at least one magnetic element, and a driving board. The driving board has at least one driving coil for acting with the magnetic element to generate an electromagnetic force to move the lens holder along a direction that is perpendicular to the optical axis of the lens. On two adjacent sides parallel to each other of the first and second lens driving modules, the magnetic elements are arranged in different configurations.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: February 12, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Bing-Ru Song
  • Publication number: 20190028622
    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: September 25, 2018
    Publication date: January 24, 2019
    Inventors: Chao-Chang Hu, Chen-Hsien Fan
  • Publication number: 20190004280
    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: Application
    Filed: April 20, 2018
    Publication date: January 3, 2019
    Inventors: Chao-Chang HU, Yi-Liang CHAN
  • Patent number: 10168506
    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: August 2, 2016
    Date of Patent: January 1, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Shu-Shan Chen, Chao-Chang Hu, Wen-Chang Lin
  • Patent number: 10168545
    Abstract: The present invention discloses a lens driving device which includes a lens holder defining an optical axis and being for holding a lens; a first AF coil disposed with respect to the lens holder; an OIS coil structure having two coils respectively disposed by two sides of the lens holder on a first plane having a normal direction parallel to the optical axis; two magnets respectively disposed with respect to the respective coils and having a first surface facing the first AF coil and a second surface facing the OIS coil structure; and a circuit structure connected electrically to the OIS coil structure and taking control thereof. At least one of the two magnets and the first AF coil cooperate to drive the lens holder along the optical axis, and each of the two magnets and the OIS coil structure cooperate to drive the lens holder along a direction perpendicular to the optical axis.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: January 1, 2019
    Assignee: TDK TAIWAN CORP.
    Inventors: Chao-Chang Hu, Shu-Shan Chen, Cheng-Kai Yu, Yu-Hao Kuan