Patents by Inventor Fenglin Xi

Fenglin Xi 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).

  • FULL COLOR OPTICAL COMBINER FOR VIRTUAL REALITY OR AUGMENTED REALITY HEADSET OR HEADS-UP DISPLAY OR SIMILAR DEVICE
    Publication number: 20240176141
    Abstract: An optical combiner includes first, second, and third polarization volume holograms (PVHs) configured to deflect light of a first color, a second color, and a third color, respectively. The optical combiner further includes a first polarization interference filter (PIF) configured to switch light of the first color from a polarization that is not deflected by the first PVH to a polarization that is deflected by the first PVH. The optical combiner may further include a second PIF configured to switch light of the second color from a polarization that is not deflected by the second PVH to a polarization that is deflected by the second PVH. The optical combiner may further include a third PIF configured to switch light of the third color from a polarization that is not deflected by the third PVH to a polarization that is deflected by the third PVH.
    Type: Application
    Filed: November 27, 2023
    Publication date: May 30, 2024
    Inventors: Fenglin Xi, Philip Bos, Hsien-Hui Cheng, Lu Lu