Patents by Inventor Haifei HU

Haifei 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).

  • Optimized design method for manufacturing fresnel grating
    Patent number: 10061122
    Abstract: An optimized design method for manufacturing a Fresnel grating is disclosed, including the following steps: (1) making a Fresnel surface type of the Fresnel grating equivalent to a curved surface type, and determining, based on the curved surface type to which the Fresnel surface type is equivalent, an optical path difference function of the Fresnel grating: ? (?)=<AP1P2B>?<AOB>+Nm?; and (2) determining a Fresnel grating parameter that minimizes a function value of the optical path difference function, so as to manufacture a Fresnel grating that has an aberration elimination effect. The manufactured Fresnel grating may effectively eliminate a portion of aberrations of the Fresnel grating, and increase a resolution of a spectrometer.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: August 28, 2018
    Assignee: Graduate School at Shenzhen, Tsinghua University
    Inventors: Qian Zhou, Jinchao Zhang, Xinghui Li, Kai Ni, Jinchao Pang, Haifei Hu, Hao Dong, Huanhuan Wang, Xiangwen Zhu, Lanlan Wang
  • OPTIMIZED DESIGN METHOD FOR MANUFACTURING FRESNEL GRATING
    Publication number: 20160327784
    Abstract: An optimized design method for manufacturing a Fresnel grating is disclosed, including the following steps: (1) making a Fresnel surface type of the Fresnel grating equivalent to a curved surface type, and determining, based on the curved surface type to which the Fresnel surface type is equivalent, an optical path difference function of the Fresnel grating: ? (?)=<AP1P2B>?<AOB>+Nm?; and (2) determining a Fresnel grating parameter that minimizes a function value of the optical path difference function, so as to manufacture a Fresnel grating that has an aberration elimination effect. The manufactured Fresnel grating may effectively eliminate a portion of aberrations of the Fresnel grating, and increase a resolution of a spectrometer.
    Type: Application
    Filed: July 21, 2016
    Publication date: November 10, 2016
    Inventors: Qian ZHOU, Jinchao ZHANG, Xinghui LI, Kai NI, Jinchao PANG, Haifei HU, Hao DONG, Huanhuan WANG, Xiangwen ZHU, Lanlan WANG