Patents by Inventor Chien-Hua Liu

Chien-Hua Liu 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: 20090002984
    Abstract: An illumination device having an optical element fixing structure is disclosed. The illumination device includes a plurality of light emitting diodes, a plurality of lenses and a supporter. The lenses are provided on the optical paths of the light emitting diodes, and each of the lenses has a guiding part. The supporter has a plurality of holding rooms. One side of the holding room has an embedded portion. The guiding part may be guided to the embedded portion to allow the body of the lens to be provided in the holding room.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 1, 2009
    Applicant: AMA PRECISION INC.
    Inventors: Chien-Hua Liu, Chiu-Chia Chen
  • Publication number: 20080310155
    Abstract: An LED lighting device is disclosed. The LED lighting device includes a lampshade, a circuit board, edge lighting light emitting diodes (LEDs), and an optical film set. The lampshade has a bottom and a side wall connected to the periphery of the bottom. The other end of the side wall opposite to the bottom defines a light outlet section. The circuit board is provided at the lampshade. The edge lighting LEDs are disposed on the bottom of the lampshade and are electrically connected to the circuit board. Light emitted from each of the edge lighting LEDs is reflected by the lampshade and then exits the lighting device through the light outlet section. The optical film set is disposed at the light outlet section of the lampshade.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 18, 2008
    Applicant: AMA PRECISION INC.
    Inventors: Heng-Chun Huang, Chien-Hua Liu
  • Publication number: 20080285273
    Abstract: An LED table lamp including a base, a holder, and a light emitting device is provided, wherein an end of the holder is connected to the base. The light emitting device includes a lampshade connected to the other end of the holder, multiple Lambertian LED light source assemblies, multiple side-emitting LED light source assemblies, a transparent support provided at the lampshade, and multiple brightness enhancement films (BEF). The lampshade has a side wall and a top wall connected the side wall, and the Lambertian LED light source assemblies and the side-emitting LED light source assemblies are disposed on the top wall. The BEFs are disposed on the transparent supports correspondingly to the Lambertian LED light source assemblies and are suitable to focus the light emitted from the Lambertian LED light source assemblies.
    Type: Application
    Filed: May 8, 2008
    Publication date: November 20, 2008
    Applicant: AMA PRECISION INC.
    Inventors: Chien-Hua Liu, Heng-Chun Huang