Patents by Inventor Quansheng Zeng

Quansheng Zeng 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).

  • Laser cleaning method and device for improving uniformity of laser cleaning surface
    Patent number: 11883859
    Abstract: A laser cleaning method and device for improving uniformity of a laser cleaning surface are provided. The laser cleaning method includes: applying a peaked-top sine wave signal to a motor; controlling a galvanometer to swing in a reciprocated manner by the motor; shaping a laser beam emitted by a laser to a linear beam by the reciprocated swing of the galvanometer; and performing laser cleaning using the shaped linear beam.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 30, 2024
    Assignee: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xuechun Lin, Zhiyan Zhang, Haijun Yu, Houwang Zhu, Quansheng Zeng, Zhiyong Dong, Hao Liang, Wenhao Ma, Hongyang Wang
  • Acousto-optic Q switch, resonant cavity and pulse laser device for improving laser device power
    Patent number: 11848532
    Abstract: An acousto-optic Q switch, a resonant cavity, and a pulse laser device for improving laser device power. The acousto-optic Q switch includes: a transparent optical element configured to form a phase grating that diffracts laser; a piezoelectric transducer arranged at one end of the transparent optical element and configured to convert electrical energy into ultrasonic energy to form the phase grating in the transparent optical element; and an absorber arranged at the other end of the transparent optical element to absorb the ultrasonic energy.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: December 19, 2023
    Assignee: INSTITUTE OF SEMICONDUCTORS, CHINESE ACADEMY OF SCIENCES
    Inventors: Xuechun Lin, Zhiyan Zhang, Haijun Yu, Houwang Zhu, Quansheng Zeng, Zhiyong Dong, Hongyang Wang, Hao Liang
  • ACOUSTO-OPTIC Q SWITCH, RESONANT CAVITY AND PULSE LASER DEVICE FOR IMPROVING LASER DEVICE POWER
    Publication number: 20210194204
    Abstract: An acousto-optic Q switch, a resonant cavity, and a pulse laser device for improving laser device power. The acousto-optic Q switch includes: a transparent optical element configured to form a phase grating that diffracts laser; a piezoelectric transducer arranged at one end of the transparent optical element and configured to convert electrical energy into ultrasonic energy to form the phase grating in the transparent optical element; and an absorber arranged at the other end of the transparent optical element to absorb the ultrasonic energy.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 24, 2021
    Inventors: Xuechun LIN, Zhiyan ZHANG, Haijun YU, Houwang ZHU, Quansheng ZENG, Zhiyong DONG, Hongyang WANG, Hao LIANG
  • LASER CLEANING METHOD AND DEVICE FOR IMPROVING UNIFORMITY OF LASER CLEANING SURFACE
    Publication number: 20210187565
    Abstract: A laser cleaning method and device for improving uniformity of a laser cleaning surface are provided. The laser cleaning method includes: applying a peaked-top sine wave signal to a motor; controlling a galvanometer to swing in a reciprocated manner by the motor; shaping a laser beam emitted by a laser to a linear beam by the reciprocated swing of the galvanometer; and performing laser cleaning using the shaped linear beam.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 24, 2021
    Inventors: Xuechun Lin, Zhiyan Zhang, Haijun Yu, Houwang Zhu, Quansheng Zeng, Zhiyong Dong, Hao Liang, Wenhao Ma, Hongyang Wang