Patents by Inventor Sundar Natarajan Yogan

Sundar Natarajan Yogan 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 source for even illumination of a light guide
    Patent number: 7674030
    Abstract: A lighting system is described. One embodiment of the lighting system includes a light guide, a first lighting device, and a second lighting device. The light guide receives light along a transmission interface. The first lighting device has a first plurality of lighting elements coupled to a first substrate between a first pair of reflector walls. The first substrate and the first pair of reflector walls define a first exposed side of the first lighting device. The second lighting device has a second plurality of lighting elements coupled to a second substrate between a second pair of reflector walls. The second substrate and the second pair of reflector walls define a second exposed side of the second lighting device configured to match the first exposed side of the first lighting device. Using lighting devices without sidewalls illuminates a diffusion panel so that there are no dark spots.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: March 9, 2010
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Ju Chin Poh, Thye Linn Mok, Sundar Natarajan Yogan, Tong Fatt Chew, Fook Chuin Ng, Siew It Pang