Patents by Inventor Jui-Wen LEE

Jui-Wen LEE 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).

  • LED lens and light source device using the same
    Patent number: 8967833
    Abstract: The present invention discloses an LED lens and a light source device using the same. The light source device includes the LED lens and a LED. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a recession portion disposed at the central thereof and a convex portion connected to the recession portion. The light incident surface is a concave surface and comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface; the second optically active area is connected to the first optically active area and the bottom surface. At the junction between the first optically active area and the second optically active area, it is an optical path inversion point that is disposed satisfying specific condition.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 3, 2015
    Assignee: E-Pin Optical Industry Co., Ltd.
    Inventors: Chih-Peng Wang, Huang-Chang Chen, Kuo-Hsuan Hsu, Jui-Wen Lee
  • LED LENS AND LIGHT SOURCE DEVICE USING THE SAME
    Publication number: 20130094218
    Abstract: The present invention discloses an LED lens and a light source device using the same. The light source device includes the LED lens and a LED. The LED lens comprises a light incident surface, a light emitting surface, and a bottom surface. The light emitting surface includes a recession portion disposed at the central thereof and a convex portion connected to the recession portion. The light incident surface is a concave surface and comprises a first optically active area and a second optically active area. The first optically active area is disposed at the central of the light incident surface; the second optically active area is connected to the first optically active area and the bottom surface. At the junction between the first optically active area and the second optically active area, it is an optical path inversion point that is disposed satisfying specific condition.
    Type: Application
    Filed: August 24, 2012
    Publication date: April 18, 2013
    Inventors: Chih-Peng WANG, Huang-Chang CHEN, Kuo-Hsuan HSU, Jui-Wen LEE