Patents by Inventor Kuen-Wang TSAI

Kuen-Wang TSAI 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: 20210109305
    Abstract: An optical element driving mechanism has an optical axis, and includes a fixed portion, a movable element, a plurality of blades, and a driving assembly. The fixed portion has an opening. The movable element is movable relative to the fixed portion. The blades are connected to the movable element. The driving assembly drives the movable element to move relative to the fixed portion. The driving assembly drives the movable element to change an overlap area of the blade and the opening.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 15, 2021
    Inventors: Chao-Chang HU, Chih-Wei WENG, Chao-Hsi WANG, Kuen-Wang TSAI
  • Patent number: 10928559
    Abstract: The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element 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: February 23, 2021
    Assignee: TDK Taiwan Corp.
    Inventors: Chao-Hsi Wang, Chao-Chang Hu, Chih-Wei Weng, Kuen-Wang Tsai
  • Patent number: 10914870
    Abstract: The present invention relates to an optical element driving mechanism, including a base, a holder, a frame and a light intensity adjusting assembly. The holder is movably connected to the base and carries the optical element, wherein the optical element has an opening and an optical axis so that light passes through the opening to the optical element. The frame is connected to the holder and the base. The light intensity adjusting assembly is disposed on the frame. The light intensity adjusting assembly includes a first shutter, a second shutter and a shutter driving member. The second shutter is disposed between the first shutter and the frame. The shutter driving member is disposed between the second shutter and the frame to drive the first shutter and the second shutter.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 9, 2021
    Assignee: TDK Taiwan Corp.
    Inventors: Shiang-Ming Yu, Kuen-Wang Tsai, Chao-Chang Hu, Chih-Wei Weng, Sin-Jhong Song
  • Publication number: 20200393667
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, and a driving assembly. The fixed portion includes a limiting portion. The movable portion is movably disposed on the fixed portion and includes an optical element and a connecting assembly. The optical element has a main axis. The connecting assembly is connected to the optical element. The driving assembly is at least partially disposed on the fixed portion, wherein the limiting portion is used for limiting the range of motion of the movable portion relative to the fixed portion.
    Type: Application
    Filed: April 9, 2020
    Publication date: December 17, 2020
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Chih-Wei WENG, Kuen-Wang TSAI
  • Publication number: 20200363699
    Abstract: An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, and a driving assembly. The movable portion is movably disposed on the fixed portion. The driving assembly is disposed on the fixed portion and drives the movable portion to move relative to the fixed portion.
    Type: Application
    Filed: April 8, 2020
    Publication date: November 19, 2020
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Kuen-Wang TSAI, Chih-Wei WENG, 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
  • 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
  • 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: 20190258136
    Abstract: The present invention relates to an optical element driving mechanism, including a base, a holder, a frame and a light intensity adjusting assembly. The holder is movably connected to the base and carries the optical element, wherein the optical element has an opening and an optical axis so that light passes through the opening to the optical element. The frame is connected to the holder and the base. The light intensity adjusting assembly is disposed on the frame. The light intensity adjusting assembly includes a first shutter, a second shutter and a shutter driving member. The second shutter is disposed between the first shutter and the frame. The shutter driving member is disposed between the second shutter and the frame to drive the first shutter and the second shutter.
    Type: Application
    Filed: March 27, 2019
    Publication date: August 22, 2019
    Inventors: Shiang-Ming YU, Kuen-Wang TSAI, Chao-Chang HU, Chih-Wei WENG, Sin-Jhong SONG
  • Publication number: 20190227406
    Abstract: The present invention relates to an aperture unit having an optical axis. The aperture unit includes a fixed portion, a guiding element, a first blade and a driving assembly. The guiding element is movably connected to the fixed portion, and the first blade is movably connected to the guiding element and the fixed portion. The driving assembly is disposed on the guiding element for driving the guiding element to move relative to the fixed portion in a first moving dimension. When the guiding element moves relative to the fixed portion in the first moving dimension, the first blade is driven by the guiding element 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: Application
    Filed: January 25, 2019
    Publication date: July 25, 2019
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Chih-Wei WENG, Kuen-Wang TSAI
  • Publication number: 20190227408
    Abstract: An optical system is provided, including a first optical member driving mechanism, a second optical member driving mechanism, and a first fixing component. The first optical member driving mechanism includes a first fixed portion, a first movable portion, a plurality of elastic members, and a first driving module. Each of the elastic members is elastically connected to the first fixed portion and the first movable portion. The second optical member driving mechanism includes a second fixed portion, a second movable portion, and a second driving module. The second movable portion is movably connected to the second fixed portion. The second driving module can drive the second movable portion to rotate relative to the second fixed portion. The first fixing component affixes the first optical member driving mechanism to the second optical member driving mechanism.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 25, 2019
    Inventors: Chen-Hsien FAN, Chao-Chang HU, Sung-Mao TSAI, Liang-Ting HO, Chih-Wei WENG, Shiang-Ming YU, Kuen-Wang TSAI, Sin-Jhong SONG
  • Publication number: 20190230262
    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: Application
    Filed: January 25, 2019
    Publication date: July 25, 2019
    Inventors: Chao-Hsi WANG, Chao-Chang HU, Kuen-Wang TSAI, Chih-Wei WENG