Patents by Inventor Ruhai GUO

Ruhai GUO 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).

  • Device for converting wavelength and projection light source
    Patent number: 9915861
    Abstract: A device for converting wavelength and a projection light source are disclosed in the present disclosure. According to an example, the device may comprise a roller, a drive motor, a first reflector, a support shaft, a drive module and a dichroic film. An axis of the support shaft may be coincided with an axis of the roller. The support shaft may be not rotated with rotation of the roller. The drive motor may drive the roller rotate around the support shaft and the drive module may drive the roller to move back and forth along an axial direction of the support shaft. So excitation light reflected by the first reflector may be incident uniformly on the sidewall of the roller. Therefore, fluorescent powder conversion efficiency may be improved compared with that of the excitation light incident on a fixed area.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: March 13, 2018
    Assignees: Hisense Co., Ltd., Hisense USA Corp., Hisense International Co., Ltd.
    Inventors: Fei Zhao, Xianrong Liu, Ruhai Guo
  • DEVICE FOR CONVERTING WAVELENGTH AND PROJECTION LIGHT SOURCE
    Publication number: 20170351166
    Abstract: A device for converting wavelength and a projection light source are disclosed in the present disclosure. According to an example, the device may comprise a roller, a drive motor, a first reflector, a support shaft, a drive module and a dichroic film. An axis of the support shaft may be coincided with an axis of the roller. The support shaft may be not rotated with rotation of the roller. The drive motor may drive the roller rotate around the support shaft and the drive module may drive the roller to move back and forth along an axial direction of the support shaft. So excitation light reflected by the first reflector may be incident uniformly on the sidewall of the roller. Therefore, fluorescent powder conversion efficiency may be improved compared with that of the excitation light incident on a fixed area.
    Type: Application
    Filed: January 24, 2017
    Publication date: December 7, 2017
    Applicants: Hisense Co., Ltd., Hisense USA Corp., Hisense International Co., Ltd.
    Inventors: Fei ZHAO, Xianrong LIU, Ruhai GUO