Patents by Inventor Soo Ghee Lee

Soo Ghee Lee 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).

  • Electronic flash, imaging device and method for producing a flash of light having a wavelength spectrum in the visible range and the infrared range using a fluorescent material
    Patent number: 7679672
    Abstract: An electronic flash, imaging device and method for producing a flash of light having a wavelength spectrum in the visible wavelength range and the infrared wavelength range uses a fluorescent material to convert at least some of the original light emitted from one or more light sources of the electronic flash to longer wavelength light to produce the flash of light. The light sources may be configured to generate light having a peak wavelength in an ultraviolet-and-visible wavelength range. The fluorescent material may include any combination of red, green, blue and yellow phosphors.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: March 16, 2010
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Janet Bee Yin Chua, Kok Chin Pan, Soo Ghee Lee
  • Method and apparatus for producing untainted white light using off-white emitting diodes
    Patent number: 7206507
    Abstract: A white light emitting device by using off-white light emitting diodes (LED's). Rather than using just pure white LEDs, the white light emitting device arranges those LEDs which exhibit off-white colors in a manner such that the combination of light emanating from these off-white LEDs produces a radiation which appears substantially pure white to the human eye.
    Type: Grant
    Filed: April 26, 2006
    Date of Patent: April 17, 2007
    Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
    Inventors: Soo Ghee Lee, Kee Yean Ng, Meng Ee Lee
  • Method and apparatus for producing untainted white light using off-white light emitting diodes
    Patent number: 7066623
    Abstract: A white light emitting device by using off-white light emitting diodes (LED's). Rather than using just pure white LEDs, the white light emitting device arranges those LEDs which exhibit off-white colors in a manner such that the combination of light emanating from these off-white LEDs produces a radiation which appears substantially pure white to the human eye.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: June 27, 2006
    Inventors: Soo Ghee Lee, Kee Yean Ng, Meng Ee Lee