Patents by Inventor Shahram R. Shiri

Shahram R. Shiri 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).

  • System and method for nanostructure apodization mask for transmitter signal suppression in a duplex telescope
    Patent number: 8963068
    Abstract: Disclosed herein is a system for an apodization mask composed of multi-walled carbon nanotubes (MWCNTs) for absorbing unwanted stray light. An apodization mask is a precise pattern or shape that is mathematically derived using light scattering measurement techniques to achieve optimal light absorption. Also disclosed herein is an apparatus for a duplex telescope with stray light suppressing capabilities comprising: a primary mirror for transmitting and receiving light; a secondary mirror for defocusing transmitted light onto the primary mirror and for focusing received light; a photodetector which receives light; a laser transmitter which transmits light; and an apodization mask for absorbing stray transmitted light.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: February 24, 2015
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics Space Administration
    Inventors: John G. Hagopian, Jeffrey C. Livas, Shahram R. Shiri, Stephanie A. Getty, June L Tveekrem, James J. Butler
  • SYSTEM AND METHOD FOR NANOSTRUCTURE APODIZATION MASK FOR TRANSMITTER SIGNAL SUPPRESSION IN A DUPLEX TELESCOPE
    Publication number: 20140061453
    Abstract: Disclosed herein is a system for an apodization mask composed of multi-walled carbon nanotubes (MWCNTs) for absorbing unwanted stray light. An apodization mask is a precise pattern or shape that is mathematically derived using light scattering measurement techniques to achieve optimal light absorption. Also disclosed herein is an apparatus for a duplex telescope with stray light suppressing capabilities comprising: a primary mirror for transmitting and receiving light; a secondary mirror for defocusing transmitted light onto the primary mirror and for focusing received light; a photodetector which receives light; a laser transmitter which transmits light; and an apodization mask for absorbing stray transmitted light.
    Type: Application
    Filed: July 28, 2011
    Publication date: March 6, 2014
    Inventors: John G. Hagopian, Jeffrey A. Livas, Shahram R. Shiri, Stephanie A. Getty, June L. Tveekrem, James J. Butler