Patents by Inventor Koon Tsang

Koon Tsang 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).

  • Ambient light filter structure
    Publication number: 20060180886
    Abstract: An ambient light filter structure and its response are disclosed. The ambient light filter structure comprises a silicon substrate, a first silicon nitride (Si3N4: 3200A+?200) component layer, a first silver (Ag: 285A+?35) component layer, a second silicon nitride (Si3N4: 920A+?50) component layer, a second silver (Ag: 285A+?35) component layer, and a third silicon nitride (Si3N4: 3500A+?200) component layer. Another ambient color filter structure is disclosed and further comprises a first sliver component layer, a first silicon nitride (Si3N4) component layer, second sliver (Ag) component layer, a second silicon nitride (Si3N4) component layer, a third sliver (Ag) component layer, a third silicon nitride (Si3N4) component layer, and a fourth sliver (Ag) component layer. The ambient light filter structure is set in laminating over the ambient light sensor in order to accomplish IR blocking with the photometric wavelength from 700 nm to 1100 nm.
    Type: Application
    Filed: July 6, 2005
    Publication date: August 17, 2006
    Inventor: Koon Tsang