Patents by Inventor Ji Hun WOO

Ji Hun WOO 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).

  • Light diffusion lens
    Patent number: 10738966
    Abstract: A light diffusion lens improved in hot spot phenomenon and darkness phenomenon is disclosed, the light diffusion lens diffusing a light generated from an LED, including: a semi-spherical body formed with a glass material or a plastic material; an upper surface forming an upper outer shape of body; a lower surface forming a lower outer shape of body; an oval-shaped incident port formed at a center of lower surface to accommodate the LED; and an incident surface convexly formed from the incident port to an upper surface side.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: August 11, 2020
    Assignee: HLOPTICS CO. LTD.
    Inventors: Ji Hun Woo, Seok Chae Ko
  • LIGHT DIFFUSION LENS
    Publication number: 20190178467
    Abstract: A light diffusion lens improved in hot spot phenomenon and darkness phenomenon is disclosed, the light diffusion lens diffusing a light generated from an LED, including: a semi-spherical body formed with a glass material or a plastic material; an upper surface forming an upper outer shape of body; a lower surface forming a lower outer shape of body; an oval-shaped incident port formed at a center of lower surface to accommodate the LED; and an incident surface convexly formed from the incident port to an upper surface side.
    Type: Application
    Filed: February 23, 2018
    Publication date: June 13, 2019
    Applicant: HLOPTICS CO., LTD.
    Inventors: Ji Hun WOO, Seok Chae KO