Patents by Inventor Christian Sandstedt

Christian Sandstedt 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).

  • Phase contrast variation of a photo-induced refractive material
    Publication number: 20020042004
    Abstract: The present invention relates to compositions useful for optically recording or storing data by stimulating a composition having a refraction modulating composition, where a stimulated region of the composition represents one kind of data and a non-stimulated region of the composition represents another kind of data. The present invention also relates to methods of optically recording data utilizing the compositions of the present invention, as well as to optical data storage devices and optical data storage elements which utilize the optical data storage compositions of the invention.
    Type: Application
    Filed: May 10, 2001
    Publication date: April 11, 2002
    Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Julia A. Kornfield, Robert H. Grubbs
  • Application of wavefront sensor to lenses capable of post-fabrication power modification
    Publication number: 20020016629
    Abstract: The present invention relates to methods of implementing an optical element having a refraction modulating composition. The methods include using a wavefront sensor to provide an optical measurement of the optical element. The present invention also relates to systems comprising an optical element having a refraction modulating composition and a wavefront sensor.
    Type: Application
    Filed: March 20, 2001
    Publication date: February 7, 2002
    Inventors: Christian A. Sandstedt, Jagdish M. Jethmalani, Robert H. Grubbs, Julia A. Kornfield, Daniel M. Schwartz, Robert Maloney