Patents by Inventor Chin-Hsin TU

Chin-Hsin TU 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 control lens and light source device using the same
    Patent number: 9157607
    Abstract: The present disclosure discloses a light control lens and a light source device using the same. The light control lens comprises a light emitting surface, a light incident surface, and a total internal reflection (TIR) inclined surface. The light incident surface and the TIR inclined surface are at the opposite side of the light emitting surface. The TIR inclined surface is at the peripheral side of the light incident surface. Between the TIR inclined surface and a plane perpendicular to an optical axis of the light control lens, there is an included angle ? of less than 45°. An effective radius of the light emitting surface is larger than the distance from an arbitrary point on the light emitting surface to a plane through an incident origin and perpendicular to the optical axis along the optical axis direction.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: October 13, 2015
    Assignee: E-PIN OPTICAL INDUSTRY CO., LTD.
    Inventors: Chih-Peng Wang, Huang-Chang Chen, Chin-Hsin Tu
  • LIGHT CONTROL LENS AND LIGHT SOURCE DEVICE USING THE SAME
    Publication number: 20140003059
    Abstract: The present disclosure discloses a light control lens and a light source device using the same. The light control lens comprises a light emitting surface, a light incident surface, and a total internal reflection (TIR) inclined surface. The light incident surface and the TIR inclined surface are at the opposite side of the light emitting surface. The TIR inclined surface is at the peripheral side of the light incident surface. Between the TIR inclined surface and a plane perpendicular to an optical axis of the light control lens, there is an included angle ? of less than 45°. An effective radius of the light emitting surface is larger than the distance from an arbitrary point on the light emitting surface to a plane through an incident origin and perpendicular to the optical axis along the optical axis direction.
    Type: Application
    Filed: February 11, 2013
    Publication date: January 2, 2014
    Applicant: E-PIN OPTICAL INDUSTRY CO., LTD.
    Inventors: Chih-Peng WANG, Huang-Chang CHEN, Chin-Hsin TU