Patents by Inventor Sara L. Johnson

Sara L. Johnson 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).

  • Publication number: 20020113753
    Abstract: A transient light scattering shutter is provided that switches very quickly from an optically transparent state to a strongly light scattering state and vice versa by varying a voltage across the shutter. Multi-surface optical devices and multiplanar volumetric systems using a plurality of such transient light scattering shutters are also provided. These devices and systems generate high quality three-dimensional images that are viewable without special eyewear or headgear.
    Type: Application
    Filed: December 18, 2001
    Publication date: August 22, 2002
    Inventors: Alan Sullivan, Sara L. Johnson