Patents by Inventor Jonglip Choi

Jonglip Choi 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).

  • Rapid acquisition ellipsometry
    Patent number: 7796259
    Abstract: Disclosed embodiments pertain to optical assemblies which impart a spatially dependent rotation to linearly polarized light. A pair of optical assemblies may be used to apply a spatially dependent rotation to linearly polarized light in the region between the optical assemblies, and produce a spatially independent rotation after traversing the second optical assembly. A pair of optical assemblies may be used in combination with a wave plate to allow a determination of the Stokes parameters of an elliptically polarized beam of light.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: September 14, 2010
    Assignee: WeiFour, Inc.
    Inventors: Anlun Tang, Yingwu Lian, Jonglip Choi
  • RAPID ACQUISITION ELLIPSOMETRY
    Publication number: 20100007882
    Abstract: Disclosed embodiments pertain to optical assemblies which impart a spatially dependent rotation to linearly polarized light. A pair of optical assemblies may be used to apply a spatially dependent rotation to linearly polarized light in the region between the optical assemblies, and produce a spatially independent rotation after traversing the second optical assembly. A pair of optical assemblies may be used in combination with a wave plate to allow a determination of the Stokes parameters of an elliptically polarized beam of light.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 14, 2010
    Inventors: Anlun Tang, Yingwu Lian, Jonglip Choi