Patents by Inventor Karen Hao

Karen Hao 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: 10656076
    Abstract: A color optical tomography system with fluorescence capabilities includes a light emitting array having a plurality of light emitting elements, a sample module, and a light sensing array including a plurality of light sensing elements, wherein the light sensing array is configured to sense light emitted from the light emitting array which has passed through the sample module. Light emitting elements emitting in the visible and UV ranges can comprise light emitting diodes (LEDs), organic light emitting diodes (OLEDs), organic light emitting transistors (OLETs), and/or other optoelectronic devices. The light sensing array can comprise for example organic light sensing devices, photodiodes, phototransistors, a CMOS photodetector, and/or charge-coupled devices (CCI)s). The light emitting array and the light sensing array can he flat or curved.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 19, 2020
    Inventors: Lester F. Ludwig, Karen Hao, Frank Hu, Alice Huang, Pooncharas Tipgunlakant
  • Publication number: 20170328830
    Abstract: An optical tomography system includes a light emitting array having a plurality of light emitting elements, a sample module, and a light sensing array including a plurality of light sensing elements, wherein the light sensing array is configured to sense light emitted from the light emitting array which has passed through the sample module. The light emitting elements can comprise for example light emitting diodes (LEDs), organic light emitting diodes (OLEDs), organic light emitting transistors (OLETs), and/or other optoelectronic devices. The light sensing array can comprise for example organic light sensing devices, photodiodes, phototransistors, a CMOS photodetector, and/or charge-coupled devices (CCDs). The light emitting array can be flat or curved, and the light sensing array can be flat or curved. The collection of measurement values can be overspecified, and a generalized inverse operation can be used to provide a solution to a resulting overspecified system of equations.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 16, 2017
    Inventors: Lester F. LUDWIG, Karen HAO, Frank HU, Alice HUANG, Pooncharas TIPGUNLAKANT
  • Publication number: 20170097298
    Abstract: An electronic imaging flow-microscope for remote environmental sensing, bioreactor process monitoring, and optical microscopic tomography applications is described. A fluid conduit has a port on each end of a thin flat transparent fluid transport region. A planar illumination surface contacts one flat side of the transparent fluid transport region and a planar image sensing surface contacts the other flat side. Light from the illumination surface travels through the transparent fluid transport region to the planar image sensing surface, producing a light field affected by the fluid and objects present. The planar image sensing surface creates electrical image signals responsive to the light field. The planar illumination surface can be light emitting elements such as LEDs, OLEDs, or OLET whose illumination can be sequenced in an image formation process. The flow microscope can further comprise flow-restricting valves, pumps, energy harvesting arrangements, and power management.
    Type: Application
    Filed: October 10, 2016
    Publication date: April 6, 2017
    Inventors: Lester F. Ludwig, Karen Hao, Frank Hu, Alice Huang, Pooncharas Tipgunlakant