Patents by Inventor Yaohua DU

Yaohua DU 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).

  • Multi-mode imaging optical system
    Patent number: 11150458
    Abstract: The present invention discloses a multi-mode imaging optical system. The multi-mode imaging optical system includes a stage configured to hold a to-be-tested sample. An imaging unit implements in-situ imaging of the to-be-tested sample. An absorption and forward scattering illumination unit irradiates the to-be-tested sample, and forms absorption imaging or forward scattered light imaging in the imaging unit. A side scattering illumination unit performs a first oblique illumination on the to-be-tested sample, so that scattered light of microparticles in the to-be-tested sample forms side scattered light imaging in the imaging unit. A fluorescent illumination unit performs a second oblique illumination on the to-be-tested sample, and excites the microparticles in the to-be-tested sample to emit fluorescence, where the fluorescence forms fluorescence imaging in the imaging unit.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: October 19, 2021
    Assignee: INSTITUTE OF MEDICAL SUPPORT TECHNOLOGY, ACADEMY OF SYSTEM ENGINEERING, ACADEMY OF MILITARY SCIENCE
    Inventors: Chao Li, Meng Lv, Feng Chen, Yaohua Du, Zhi Cheng, Yanfei Yang, Meng Chen
  • MULTI-MODE IMAGING OPTICAL SYSTEM
    Publication number: 20200278526
    Abstract: The present invention discloses a multi-mode imaging optical system. The multi-mode imaging optical system includes a stage configured to hold a to-be-tested sample. An imaging unit, implements in-situ imaging of the to-be-tested sample. An absorption and forward scattering illumination unit, irradiates the to-be-tested sample, and forms absorption imaging or forward scattered light imaging in the imaging unit. A side scattering illumination unit, performs a first oblique illumination on the to-be-tested sample, so that scattered light of microparticles in the to-be-tested sample forms side scattered light imaging in the imaging unit. A fluorescent illumination unit, performs a second oblique illumination on the to-be-tested sample, and excites the microparticles in the to-be-tested sample to emit fluorescence, where the fluorescence forms fluorescence imaging in the imaging unit.
    Type: Application
    Filed: February 7, 2020
    Publication date: September 3, 2020
    Inventors: Chao LI, Meng LV, Feng CHEN, Yaohua DU, Zhi CHENG, Yanfei YANG, Meng CHEN