Patents by Inventor Seong Cheol JI

Seong Cheol JI 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: 10551301
    Abstract: A brightness colorimeter having a measurement error caused by linearly polarized light, which is corrected, includes: a lens module to which light irradiated from one side is input; a polarization conversion module configured to intersect the light input through the lens module to convert polarization characteristics; a spectral module provided in one unit block to reflect and intersect the light input through the polarization conversion module so as to branch the light in different three directions; filter modules arranged on progress paths of the light branched in different three direction through the spectral module to intersect monochromatic light beams having specific spectra among the light branched in the three directions; and measurement modules arranged to correspond to exit angles of the monochromatic light beams penetrated through the filter modules, to measure at least one of a brightness, a chromaticity, and an error obtained by the monochromatic light beams.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: February 4, 2020
    Assignee: ANI. Co. Ltd.
    Inventors: Kyu Ho Lee, Kyu Seok Kim, Sang Woo Park, Seong Cheol Ji, Yong Hui Park, Seung Yub Choi
  • Publication number: 20170370771
    Abstract: A brightness colorimeter having a measurement error caused by linearly polarized light, which is corrected, includes: a lens module to which light irradiated from one side is input; a polarization conversion module configured to penetrate the light input through the lens module to convert polarization characteristics; a spectral module provided in one unit block to reflect and penetrate the light input through the polarization conversion module so as to branch the light in different three directions; filter modules arranged on progress paths of the light branched in different three direction through the spectral module to penetrate monochromatic light beams having specific spectra among the light branched in the three directions; and measurement modules arranged to correspond to exit angles of the monochromatic light beams penetrated through the filter modules, to measure at least one of a brightness, a colorimeter and a defect obtained by the monochromatic light beams.
    Type: Application
    Filed: May 8, 2017
    Publication date: December 28, 2017
    Inventors: Kyu Ho LEE, Kyu Seok KIM, Sang Woo PARK, Seong Cheol JI, Yong Hui PARK, Seung Yub CHOI