Patents by Inventor Xilu Li

Xilu Li 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).

  • Enhanced digital light processing-based mask projection stereolithography method and apparatus
    Patent number: 10639843
    Abstract: An enhanced digital light processing-based mask projection stereolithography method and apparatus are disclosed, where the apparatus comprises: a control platform capable of slicing a model of a to-be-prototyped object into layers, converting the layer into a bitmap, and further dividing the layer into a main body area and boundary filling areas; a digital light processing unit that is controlled by the control platform and capable of emitting a first light beam used for the corresponding main body area of the layer of the to-be-prototyped object; and a laser marking unit that is controlled by the control platform and capable of emitting a second light beam used for the corresponding boundary filling areas of the layer of the to-be-prototyped object. The present invention can not only implement high-speed prototyping but also avoid an edge distortion, thereby improving precision of object prototyping.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 5, 2020
    Assignee: HAN'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD.
    Inventors: Jian Yuan, Xilu Li, Yangting Qi, Hao Yang, Yunfeng Gao
  • ENHANCED DIGITAL LIGHT PROCESSING-BASED MASK PROJECTION STEREOLITHOGRAPHY METHOD AND APPARATUS
    Publication number: 20170326786
    Abstract: An enhanced digital light processing-based mask projection stereolithography method and apparatus are disclosed, where the apparatus comprises: a control platform capable of slicing a model of a to-be-prototyped object into layers, converting the layer into a bitmap, and further dividing the layer into a main body area and boundary filling areas; a digital light processing unit that is controlled by the control platform and capable of emitting a first light beam used for the corresponding main body area of the layer of the to-be-prototyped object; and a laser marking unit that is controlled by the control platform and capable of emitting a second light beam used for the corresponding boundary filling areas of the layer of the to-be-prototyped object. The present invention can not only implement high-speed prototyping but also avoid an edge distortion, thereby improving precision of object prototyping.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 16, 2017
    Inventors: Jian Yuan, Xilu Li, Yangting Qi, Hao Yang, Yunfeng Gao