Patents by Inventor EPISTAR COPORATION

EPISTAR COPORATION 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).

  • LIGHT-EMITTING DEVICE WITH TEMPERATURE COMPENSATION
    Publication number: 20130140590
    Abstract: The present application provides a light-emitting device comprising a first light-emitting diode group with a first hot/cold factor comprising a plurality of first light-emitting diode units electrically connected to one another; and a temperature compensation element electrically connected to the first light-emitting diode group, and comprising a first resistor and a second resistor; wherein the first resistor has a first temperature coefficient of resistance and the second resistor has a second temperature coefficient of resistance; and the absolute value of the first temperature coefficient of resistance is ten times greater than that of the second temperature coefficient of resistance.
    Type: Application
    Filed: February 5, 2013
    Publication date: June 6, 2013
    Applicant: EPISTAR CORPORATION
    Inventor: EPISTAR COPORATION