Patents by Inventor Samuel Gumins

Samuel Gumins 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).

  • Publication number: 20070023762
    Abstract: The invention relates to a white light emitting LED lamp. The LED lamp comprises an LED emitting blue light and luminescent layer for converting a part of the blue light into light having a longer wavelength. According to the invention either a dye is provided for absorbing a part of the blue light emitted by the LED or a light reflecting layer is provided for selectively reflecting a part of the blue light emitted by the LED. Thus the proportion of the blue light is reduced which results in a reduced color temperature without having a negative effect on the color rendering and only reducing the total luminous flux by a small amount, which is more efficient than using a thicker luminescent coating.
    Type: Application
    Filed: July 29, 2005
    Publication date: February 1, 2007
    Inventors: Samuel Gumins, Julius Muschaweck