Patents by Inventor Ping-Han Chuang

Ping-Han Chuang 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: 20090059597
    Abstract: An energy-saving lampshade with even light distribution is disclosed to include a lampshade body disposed at the top side to hold a light source, a light-transmissive plate at the bottom side, a light condenser and a curved light reflector mounted inside the lampshade body, and a reflector cone mounted on the light-transmissive plate inside the lampshade right below the light source. When the light source is controlled to emit light, the light condenser condenses light from the light source onto the reflector cone, and the reflector cone and the light reflector reflects light rays, and therefore light rays are evenly distributed in the illumination without showing the normal distribution (Gaussian distribution) and avoiding dazzling.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 5, 2009
    Inventor: Ping-Han Chuang