Patents by Inventor Hung-Liang Chien

Hung-Liang Chien 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).

  • Patent number: 10036854
    Abstract: A digital roller mold manufacturing system for manufacture of exterior characteristic structures on a roller mold depends on an illuminator for generation and projection of a light source on a Digital Mirror Device (DMD) chip in which micro-mirrors are rotated a controllable angle for defining the light source as an optical image and projecting the optical image on first micro-lenses at which digital light energy is transformed from the optical image and transmitted to first optical fibers, second optical fibers via couplers, and second micro-lenses. Furthermore, the second micro-lenses focus the digital light energy as light spots which are received by a photo-resist layer externally covered on the roller for development of patterns with exterior characteristic structures on the roller mold because a control unit regulates rotations of the roller and horizontal shifts of second micro-lenses.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 31, 2018
    Assignee: NATIONAL CHENG KUNG UNIVERSITY
    Inventors: Yung-Chun Lee, Hung-Liang Chien
  • Publication number: 20180059475
    Abstract: An optics component with double-layered micro-lens array includes mainly complex pinhole structures in array arrangement on one substrate face, and either substrate face has an optical micro-lens array. Both optical micro-lens arrays include a plurality of aspheric micro-lenses corresponding to the pinhole structures. When the component is in use, a UV light reflected by a DMD wafer is focused onto each pinhole structure through the plurality of aspheric micro-lenses in the optical micro-lens array of one face of a crystal substrate, and a small spot is formed, which may begin to diffuse after passing through the pinhole structure. Then, the beam is focused onto another face by the plurality of aspheric micro-lenses of another substrate face to obtain a small spot with a small circular spot approaching physical diffraction limit. The formed spot arrays can be applied to the scanning maskless and direct-write exposure lithography process.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Inventors: Yung-Chun LEE, Hung-Liang CHIEN
  • Publication number: 20160349618
    Abstract: A digital roller mold manufacturing system for manufacture of exterior characteristic structures on a roller mold depends on an illuminator for generation and projection of a light source on a Digital Mirror Device (DMD) chip in which micro-mirrors are rotated a controllable angle for defining the light source as an optical image and projecting the optical image on first micro-lenses at which digital light energy is transformed from the optical image and transmitted to first optical fibers, second optical fibers via couplers, and second micro-lenses. Furthermore, the second micro-lenses focus the digital light energy as light spots which are received by a photo-resist layer externally covered on the roller for development of patterns with exterior characteristic structures on the roller mold because a control unit regulates rotations of the roller and horizontal shifts of second micro-lenses.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 1, 2016
    Inventors: Yung-Chun Lee, Hung-Liang Chien