Patents by Inventor Chang-Chieh Sung

Chang-Chieh Sung 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).

  • Surface lighting device with closed oblique reflector
    Patent number: 7134777
    Abstract: A surface lighting device (1) includes a light guide plate (11), a point light source (14), and a light reflector (13) substantially juxtaposed with the light guide plate. The light guide plate has a light incident surface (111). The point light source is located between one end of the light reflector and the light incident surface. The light reflector comprises a reflecting portion (131) obliquely opposite to the light incident surface. The reflecting portion is adapted to receive light beams emitted from the point light source, and reflect the received light into the light incident surface of the light guide plate.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: November 14, 2006
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventor: Chang-Chieh Sung
  • Surface lighting device with closed oblique reflector
    Publication number: 20040184258
    Abstract: A surface lighting device (1) includes a light guide plate (11), a point light source (14), and a light reflector (13) substantially juxtaposed with the light guide plate. The light guide plate has a light incident surface (111). The point light source is located between one end of the light reflector and the light incident surface. The light reflector comprises a reflecting portion (131) obliquely opposite to the light incident surface. The reflecting portion is adapted to receive light beams emitted from the point light source, and reflect the received light into the light incident surface of the light guide plate.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 23, 2004
    Inventor: Chang-Chieh Sung