Patents by Inventor Tau-Jin Wu

Tau-Jin Wu 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).

  • Publication number: 20240170913
    Abstract: A surface light emitting element with high heat dissipation and uniform light emission includes a metal reflective layer, a first metal conductive layer, an omnidirectional reflecting current isolation layer, a first-type semiconductor current spreading layer, a light emitting diode layer, a second-type semiconductor current spreading layer and a second metal conductive layer. The metal reflective layer includes at least one surrounding wall structure. The omnidirectional reflecting current isolation layer is arranged on the metal reflective layer and entirely covers the two sides of the at least one surrounding wall structure to form at least one cylindrical channel. The light emitting diode layer is located in the at least one cylindrical channel.
    Type: Application
    Filed: November 18, 2022
    Publication date: May 23, 2024
    Inventors: Chih-Sung CHANG, Wei-Yu YEN, Wayne JAN, Tau-Jin WU
  • Patent number: 10541512
    Abstract: The present invention is a surface emitting laser luminescent diode structure which is characterized in that a recess comprises two tilted slopes on two sides and a protruding trapezoidal cylinder located at the bottom center of the recess is disposed at the bottom of a laser resonant cavity. Thus, a reflecting mirror disposed along the surface of the recess includes two tilted side surfaces as leak-proof sides, which reduces the divergence angle and avoid the lateral light leakage. Additionally, a current isolating layer is disposed on the reflecting mirror and is designed to satisfy the condition (¼*wavelength*1/refractive index) of an optical film, thereby allowing the reflecting mirror to receive an excellent reflectance. Besides, the current isolating layer limits the flow direction of the current, thus increasing operating speed.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: January 21, 2020
    Assignee: High Power Opto. Inc.
    Inventors: Wei-Yu Yen, Li-Ping Chou, Tau-Jin Wu, Chih-Sung Chang
  • Publication number: 20190334319
    Abstract: The present invention is a surface emitting laser luminescent diode structure which is characterized in that a recess comprises two tilted slopes on two sides and a protruding trapezoidal cylinder located at the bottom center of the recess is disposed at the bottom of a laser resonant cavity. Thus, a reflecting mirror disposed along the surface of the recess includes two tilted side surfaces as leak-proof sides, which reduces the divergence angle and avoid the lateral light leakage. Additionally, a current isolating layer is disposed on the reflecting mirror and is designed to satisfy the condition (¼*wavelength*1/refractive index) of an optical film, thereby allowing the reflecting mirror to receive an excellent reflectance. Besides, the current isolating layer limits the flow direction of the current, thus increasing operating speed.
    Type: Application
    Filed: March 12, 2019
    Publication date: October 31, 2019
    Inventors: Wei-Yu Yen, Li-Ping Chou, Tau-Jin Wu, Chih-Sung Chang