Patents by Inventor Steven B. Lester

Steven B. Lester 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).

  • Low optical loss electrode structures for LEDs
    Patent number: 8124433
    Abstract: An electrode structure is disclosed for enhancing the brightness and/or efficiency of an LED. The electrode structure can have a metal electrode and an optically transmissive thick dielectric material formed intermediate the electrode and a light emitting semiconductor material. The electrode and the thick dielectric cooperate to reflect light from the semiconductor material back into the semiconductor so as to enhance the likelihood of the light ultimately being transmitted from the semiconductor material. Such LED can have enhanced utility and can be suitable for uses such as general illumination.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: February 28, 2012
    Assignee: Bridgelux, Inc.
    Inventors: Frank T. Shum, William W. So, Steven B. Lester
  • LOW OPTICAL LOSS ELECTRODE STRUCTURES FOR LEDS
    Publication number: 20100133575
    Abstract: An electrode structure is disclosed for enhancing the brightness and/or efficiency of an LED. The electrode structure can have a metal electrode and an optically transmissive thick dielectric material formed intermediate the electrode and a light emitting semiconductor material. The electrode and the thick dielectric cooperate to reflect light from the semiconductor material back into the semiconductor so as to enhance the likelihood of the light ultimately being transmitted from the semiconductor material. Such LED can have enhanced utility and can be suitable for uses such as general illumination.
    Type: Application
    Filed: February 4, 2010
    Publication date: June 3, 2010
    Applicant: BRIDGELUX, INC.
    Inventors: Frank T. Shum, William W. So, Steven B. Lester