Patents by Inventor Thian-Hua Xu

Thian-Hua Xu 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: 9910056
    Abstract: A device for the interferometric measuring of an object, including a source to generate a source beam, a beam splitting device to split the source beam into a measuring beam and a reference beam, an optic interference device and a first detector, which cooperate such that the measuring beam reflected by the object at least partially is at least partially interfered as the receiver beam and the reference beam on a detector area of the first detector. The beam splitting device splits the source beam into a measuring beam, a first partial reference beam, and at least one second partial reference beam. There is at least one second detector embodied such that the first receiver beam is interfered with the first partial reference beam on a detection area of the first detector and the second partial receiver beam with a second partial reference beam on a detection area of the second detector, each with the formation of an optic interference.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: March 6, 2018
    Assignee: Polytec GmbH
    Inventors: Matthias Schussler, Christian Rembe, Alexander Drabenstedt, Sebastian Boedecker, Thian-Hua Xu
  • Publication number: 20170199214
    Abstract: A device for the interferometric measuring of an object, including a source to generate a source beam, a beam splitting device to split the source beam into a measuring beam and a reference beam, an optic interference device and a first detector, which cooperate such that the measuring beam reflected by the object at least partially is at least partially interfered as the receiver beam and the reference beam on a detector area of the first detector. The beam splitting device splits the source beam into a measuring beam, a first partial reference beam, and at least one second partial reference beam. There is at least one second detector embodied such that the first receiver beam is interfered with the first partial reference beam on a detection area of the first detector and the second partial receiver beam with a second partial reference beam on a detection area of the second detector, each with the formation of an optic interference.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 13, 2017
    Applicant: Polytec GmbH
    Inventors: Matthias Schussler, Christian Rembe, Alexander Drabenstedt, Sebastian Boedecker, Thian-Hua Xu
  • Patent number: 9551726
    Abstract: A device for the interferometric measuring of an object, including a source to generate a source beam, a beam splitting device to split the source beam into a measuring beam and a reference beam, an optic interference device and a first detector, which cooperate such that the measuring beam reflected by the object at least partially is at least partially interfered as the receiver beam and the reference beam on a detector area of the first detector. The beam splitting device splits the source beam into a measuring beam, a first partial reference beam, and at least one second partial reference beam. There is at least one second detector embodied such that the first receiver beam is interfered with the first partial reference beam on a detection area of the first detector and the second partial receiver beam with a second partial reference beam on a detection area of the second detector, each with the formation of an optic interference.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: January 24, 2017
    Assignee: Polytec GmbH
    Inventors: Matthias Schussler, Christian Rembe, Alexander Drabenstedt, Sebastian Boedecker, Thian-Hua Xu
  • Publication number: 20140009750
    Abstract: A device for the interferometric measuring of an object, including a source to generate a source beam, a beam splitting device to split the source beam into a measuring beam and a reference beam, an optic interference device and a first detector, which cooperate such that the measuring beam reflected by the object at least partially is at least partially interfered as the receiver beam and the reference beam on a detector area of the first detector. The beam splitting device splits the source beam into a measuring beam, a first partial reference beam, and at least one second partial reference beam. There is at least one second detector embodied such that the first receiver beam is interfered with the first partial reference beam on a detection area of the first detector and the second partial receiver beam with a second partial reference beam on a detection area of the second detector, each with the formation of an optic interference.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 9, 2014
    Inventors: Mathias Schussler, Christian Rembe, Alexander Drabenstedt, Sebastian Boedecker, Thian-Hua Xu