Patents by Inventor Jean-Marie HANSSENS

Jean-Marie HANSSENS 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).

  • Anomaloscope having pixels emitting monochromatic light at three wavelengths
    Patent number: 11096571
    Abstract: An anomaloscope comprises a display and a controller of the display. The display has pixels arranged in a plurality of groups, each group containing at least three pixels, each pixel being capable of emitting monochromatic light at a distinct wavelength. The controller of the display causes the display to emit, in at least one of the plurality of groups, light at a first wavelength and causes the display to emit, in at least another one of the plurality of groups, light at two other wavelengths. The controller of the display controls intensities of the light emitted at each of the distinct wavelengths to generate of a pair of metameric colors between the light emitted at the first wavelength and a combination of the light emitted at the two other wavelengths. A method uses the anomaloscope to assess an ability of a subject to discriminate between colors.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: August 24, 2021
    Inventors: Vasile Diaconu, Jean-Marie Hanssens, Marc Melillo
  • ANOMALOSCOPE HAVING PIXELS EMITTING MONOCHROMATIC LIGHT AT THREE WAVELENGTHS
    Publication number: 20200029804
    Abstract: An anomaloscope comprises a display and a controller of the display. The display has pixels arranged in a plurality of groups, each group containing at least three pixels, each pixel being capable of emitting monochromatic light at a distinct wavelength. The controller of the display causes the display to emit, in at least one of the plurality of groups, light at a first wavelength and causes the display to emit, in at least another one of the plurality of groups, light at two other wavelengths. The controller of the display controls intensities of the light emitted at each of the distinct wavelengths to generate of a pair of metameric colors between the light emitted at the first wavelength and a combination of the light emitted at the two other wavelengths. A method uses the anomaloscope to assess an ability of a subject to discriminate between colors.
    Type: Application
    Filed: March 19, 2018
    Publication date: January 30, 2020
    Inventors: Vasile DIACONU, Jean-Marie HANSSENS, Marc MELILLO