Patents by Inventor Chaohong Li

Chaohong Li 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).

  • Patent number: 10575729
    Abstract: A confocal laser fundus angiographic device, comprises: an objective lens, a scanning lens, a scanning galvanometer, a mirror, a filtering module, an imaging detection assembly and an excitation light source. The illumination light emitted by the excitation light source enters the fundus passing through the scanning galvanometer, the scanning lens and the objective lens. Fluorescent substances in fundus vessels are excited by the illumination light and emit light with a specific wavelength. The light with a specific wavelength enters the imaging detection assembly by passing through the objective lens, the scanning lens, the scanning galvanometer, the mirror and the filtering module. The filtering module comprises a base, a motor mounted on the base, a rotary block mounted on the motor and at least one filter mounted on the rotary block. The base is provided with a light-through hole.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: March 3, 2020
    Assignee: SUZHOU MICROCLEAR MEDICAL INSTRUMENTS CO., LTD.
    Inventors: Lei Li, Enyi Zhao, Xiaoping Hou, Chaohong Li
  • Patent number: 10575730
    Abstract: An ultra wide field fundus imaging system comprises a photosource, an optical splitter, a scanning assembly, a curved reflector, a probe pinhole and an imaging assembly. The scanning assembly includes a first scanning mirror scanning along a first direction and a second scanning mirror scanning along a second direction. The light emitted by the photosource passes through the optical splitter, then successively is reflected by the first scanning mirror, the curved reflector, the second scanning mirror and the curved reflector, and then enters in the fundus; the light entering the fundus is reflected by the retina and then successively is reflected by the curved reflector, the second scanning mirror, the curved reflector, the first scanning mirror and then returned to the optical splitter; the light is reflected by the optical splitter and passes through the probe pinhole, finally the light enters in the imaging assembly.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: March 3, 2020
    Assignee: SUZHOU MICROCLEAR MEDICAL INSTRUMENTS CO., LTD.
    Inventor: Chaohong Li
  • Publication number: 20190082956
    Abstract: An ultra wide field fundus imaging system comprises a photosource, an optical splitter, a scanning assembly, a curved reflector, a probe pinhole and an imaging assembly. The scanning assembly includes a first scanning mirror scanning along a first direction and a second scanning mirror scanning along a second direction. The light emitted by the photosource passes through the optical splitter, then successively is reflected by the first scanning mirror, the curved reflector, the second scanning mirror and the curved reflector, and then enters in the fundus; the light entering the fundus is reflected by the retina and then successively is reflected by the curved reflector, the second scanning mirror, the curved reflector, the first scanning mirror and then returned to the optical splitter; the light is reflected by the optical splitter and passes through the probe pinhole, finally the light enters in the imaging assembly.
    Type: Application
    Filed: November 24, 2016
    Publication date: March 21, 2019
    Inventor: CHAOHONG LI
  • Publication number: 20180303337
    Abstract: A confocal laser fundus angiographic device, comprises: an objective lens, a scanning lens, a scanning galvanometer, a mirror, a filtering module, an imaging detection assembly and an excitation light source. The illumination light emitted by the excitation light source enters the fundus passing through the scanning galvanometer, the scanning lens and the objective lens. Fluorescent substances in fundus vessels are excited by the illumination light and emit light with a specific wavelength. The light with a specific wavelength enters the imaging detection assembly by passing through the objective lens, the scanning lens, the scanning galvanometer, the mirror and the filtering module. The filtering module comprises a base, a motor mounted on the base, a rotary block mounted on the motor and at least one filter mounted on the rotary block. The base is provided with a light-through hole.
    Type: Application
    Filed: May 17, 2017
    Publication date: October 25, 2018
    Inventors: LEI LI, ENYI ZHAO, XIAOPING HOU, CHAOHONG LI
  • Patent number: 8936364
    Abstract: Embodiments of the invention generally provide apparatuses and methods utilized in optics, and more specifically to apparatuses and methods for adaptive optics correction and imaging. Real-time wavefront sensorless adaptive optics correction and imaging is used with the living human eye to produce optical quality rivaling that of wavefront sensor based control in the similar systems. Using an optimization algorithm that is based on an image quality metric, the apparatus and method optimize the optical quality in ocular image frames acquired with an adaptive optics system.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: January 20, 2015
    Assignee: University of Houston System
    Inventors: Jason Porter, Heidi Hofer, Nripun Sredar, Hope Queener, Chaohong Li, Lukasz Sterkowicz