Patents by Inventor Quanquan Chen

Quanquan Chen 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, control method for light source, and projection system having light source
    Patent number: 9088731
    Abstract: A light source includes a first light emitting source (2), a second light emitting source (3), a color-adjusting apparatus (1) with light wavelength conversion material, a control unit, and a positioning apparatus provided on the color-adjusting apparatus (1). The positioning apparatus sends a positioning signal which indicates a position of the color-adjusting apparatus to the control unit. The control unit outputs a control signal to the power switch of the second light emitting source so that the second light emitting source is controlled to stop emitting the light when the light generated by the color-adjusting apparatus is the same as that of the first light emitting source. A control method for light source and a projection system having light source are also disclosed.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: July 21, 2015
    Assignee: APPOTRONICS CORPORATION LIMITED
    Inventors: Yi Li, Quanquan Chen
  • LIGHT SOURCE, CONTROL METHOD FOR LIGHT SOURCE, AND PROJECTION SYSTEM HAVING LIGHT SOURCE
    Publication number: 20120120120
    Abstract: A light source includes a first light emitting source (2), a second light emitting source (3), a color-adjusting apparatus (1) with light wavelength conversion material, a control unit, and a positioning apparatus provided on the color-adjusting apparatus (1). The positioning apparatus sends a positioning signal which indicates a position of the color-adjusting apparatus to the control unit. The control unit outputs a control signal to the power switch of the second light emitting source so that the second light emitting source is controlled to stop emitting the light when the light generated by the color-adjusting apparatus is the same as that of the first light emitting source. A control method for light source and a projection system having light source are also disclosed.
    Type: Application
    Filed: April 7, 2010
    Publication date: May 17, 2012
    Applicant: APPOTRONICS CORPORATION LIMITED
    Inventors: Yi Li, Quanquan Chen