Patents by Inventor Shanhong Xian

Shanhong Xian 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).

  • Front-end lighting system for projection and projection device
    Patent number: 9599881
    Abstract: A front-end lighting system for projection includes: a RGB three-color LED light source, configured to generate three monochromatic lights; a reflector, configured to perform a first light mixing operation on three monochromatic lights generated by the RGB three-color LED light source; a first group of relay lenses, configured to adjust a light path; and a compound eye field lens, configured to perform a second light mixing operation on the three monochromatic lights generated by the RGB three-color LED light source. The reflector includes a reflecting surface, and three monochromatic lights emitted by the RGB three-color LED light sources, after being reflected by the reflecting surface of the reflector, pass through the first group of relay lenses and the compound eye field lens in sequence.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 21, 2017
    Assignee: SICHUAN DOWLAB ELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Shanhong Xian
  • FRONT-END LIGHTING SYSTEM FOR PROJECTION AND PROJECTION DEVICE
    Publication number: 20170052436
    Abstract: A front-end lighting system for projection includes: a RGB three-color LED light source, configured to generate three monochromatic lights; a reflector, configured to perform a first light mixing operation on three monochromatic lights generated by the RGB three-color LED light source; a first group of relay lenses, configured to adjust a light path; and a compound eye field lens, configured to perform a second light mixing operation on the three monochromatic lights generated by the RGB three-color LED light source. The reflector includes a reflecting surface, and three monochromatic lights emitted by the RGB three-color LED light sources, after being reflected by the reflecting surface of the reflector, pass through the first group of relay lenses and the compound eye field lens in sequence.
    Type: Application
    Filed: December 22, 2015
    Publication date: February 23, 2017
    Inventor: Shanhong Xian