Patents by Inventor Yifing Qiu

Yifing Qiu 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).

  • Optical light guide systems for low Z-height LED arrays
    Patent number: 11194091
    Abstract: A light source includes a plurality of light emitting diodes, with at least some light emitting diodes sized between 30 microns and 500 microns. A plurality of micro-optics are associated with a light guide plate and sized less than 1 millimeter, with each micro-optic positioned over at least one of the plurality of light emitting diodes. At least some of the combinations of light emitting diode and micro-optics associated with the light guide plate are positioned within a distance to each other sufficient to provide a substantially uniform light beam.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: December 7, 2021
    Assignee: Lumileds LLC
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu
  • OPTICAL LIGHT GUIDE SYSTEMS FOR LOW Z-HEIGHT LED ARRAYS
    Publication number: 20200103581
    Abstract: A light source includes a plurality of light emitting diodes, with at least some light emitting diodes sized between 30 microns and 500 microns. A plurality of micro-optics are associated with a light guide plate and sized less than 1 millimeter, with each micro-optic positioned over at least one of the plurality of light emitting diodes. At least some of the combinations of light emitting diode and micro-optics associated with the light guide plate are positioned within a distance to each other sufficient to provide a substantially uniform light beam.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu
  • FLEXIBLE LOW Z-HEIGHT LED ARRAYS WITH CONTROLLABLE LIGHT BEAMS
    Publication number: 20200105827
    Abstract: A light source useful for architectural lighting, general lighting, street lighting, or other lighting applications includes a plurality of light emitting diodes. A least some light emitting diodes can be sized between 30 microns and 500 microns. A plurality of micro-optics sized less than 1 millimeter are positioned over at least some of the plurality of light emitting diodes and a controller is connected to selectively power groups of the plurality of light emitting diodes to provide different light beam patterns.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu
  • RAYLEIGH SPACING LIMITED AND LOW Z-HEIGHT LED ARRAYS
    Publication number: 20200103091
    Abstract: A light source useful for architectural lighting, general lighting, street lighting, or other lighting applications includes a plurality of light emitting diodes, with at least some light emitting diodes sized between 50 microns and 500 microns. A plurality of micro-optics sized less than 1 millimeter are positioned over at least some of the plurality of light emitting diodes. Each combination of light emitting diode and associated micro-optic is positioned within a Rayleigh distance to each other, sufficient to both present a substantially uniform visual appearance and provide a substantially uniform light beam. In some embodiments the height of the light emitting diodes, their supporting substrate and electrical traces, and associated optics is less than 5 millimeters.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu