Patents by Inventor Shaobo Jin

Shaobo Jin 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).

  • Vortex beam-excited precision grating displacement measurement apparatus and measurement method
    Patent number: 11874475
    Abstract: A vortex beam-excited precision grating displacement measurement apparatus, which performs displacement measurement by taking a vortex beam carrying topological charges as an excitation light source of a grating and by using the interference of a ±m-order diffracted vortex beam. In the vortex beam-excited precision grating displacement measurement method and apparatus, the displacement p/m of the measured displacement corresponds to the rotation of a circle 2? rad of an interference petal pattern, and then the rotation of 1° of the interference petal pattern corresponds to the measured displacement amount of p/360m. Compared with a conventional grating measurement method, the present disclosure provides a grating interference sensing signal that realizes a higher optical subdivision rate itself.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: January 16, 2024
    Assignee: ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
    Inventors: Guoyong Ye, Yalin Zhang, Tao Yuan, Shaobo Jin, Tong Wang, Xuling Liu, Hui Wang
  • VORTEX BEAM-EXCITED PRECISION GRATING DISPLACEMENT MEASUREMENT APPARATUS AND MEASUREMENT METHOD
    Publication number: 20230359049
    Abstract: A vortex beam-excited precision grating displacement measurement apparatus, which performs displacement measurement by taking a vortex beam carrying topological charges as an excitation light source of a grating and by using the interference of a ±m-order diffracted vortex beam. In the vortex beam-excited precision grating displacement measurement method and apparatus, the displacement p/m of the measured displacement corresponds to the rotation of a circle 2? rad of an interference petal pattern, and then the rotation of 1° of the interference petal pattern corresponds to the measured displacement amount of p/360m. Compared with a conventional grating measurement method, the present disclosure provides a grating interference sensing signal that realizes a higher optical subdivision rate itself.
    Type: Application
    Filed: November 23, 2022
    Publication date: November 9, 2023
    Inventors: Guoyong YE, Yalin Zhang, Tao Yuan, Shaobo Jin, Tong Wang, Xuling Liu, Hui Wang