Patents by Inventor Sayu Shioya

Sayu Shioya 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).

  • Polarization element unit and polarization light emitting apparatus
    Patent number: 7463418
    Abstract: In the present wire grid polarization element unit and polarized light emitting apparatus, it is possible to prevent non-polarized light, which has bad extinction ratio from leaking from end portions of polarization elements. Specifically, in a frame, wire grid polarization elements are aligned and light shielding members are provided on end portions of the polarization elements. In addition, without the shielding members, the wire grid polarization elements may be overlapped each other. Further, a rotation unit may be provided in order to rotate the polarization elements with respect to an optical axis of light so that a direction of grid of each polarization element can be parallel to each other.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: December 9, 2008
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventor: Sayu Shioya
  • Polarization element unit and polarization light emitting apparatus
    Publication number: 20060092512
    Abstract: In the present wire grid polarization element unit and polarized light emitting apparatus, it is possible to prevent non-polarized light, which has bad extinction ratio from leaking from end portions of polarization elements. Specifically, in a frame, wire grid polarization elements are aligned and light shielding members are provided on end portions of the polarization elements. In addition, without the shielding members, the wire grid polarization elements may be overlapped each other. Further, a rotation unit may be provided in order to rotate the polarization elements with respect to an optical axis of light so that a direction of grid of each polarization element can be parallel to each other.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 4, 2006
    Inventor: Sayu Shioya