Patents by Inventor Chuong Ahn Tran

Chuong Ahn Tran 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 HIGH COLOR RENDERING INDEX AND HIGH LUMINESCENCE EFFICIENCY
    Publication number: 20100264432
    Abstract: A light emitting device comprises two light-emitting diode (LED) groups, a group of luminophor layers, and an input terminal. The first LED group includes at least one blue LED emitting light having a dominant wavelength in a range between 400 nm and 480 nm, and the second LED group includes at least one red-orange LED emitting light having a dominant wavelength in a range between 610 nm and 630 nm. The group of luminophor layers, which are selected from one of silicates, nitrides, and nitrogen oxides, are positioned above the first LED group and partially converts the light emitted by the first LED group into light having a dominant wavelength in a range between 500 nm and 555 nm. The input terminal is connected to the two LED groups for providing desired electric energy thereto.
    Type: Application
    Filed: January 20, 2010
    Publication date: October 21, 2010
    Applicant: Semileds Optoelectronics Co., Ltd.
    Inventors: Wen-Huang Liu, Trung Tri Doan, Chuong Ahn Tran