Patents by Inventor Eldon L. Porter

Eldon L. Porter 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).

  • Laser synchronized high-speed shutter for spectroscopic application
    Patent number: 6472657
    Abstract: A fast mechanical shutter, based on rotating chopper wheels, has been designed and implemented to shutter the entrance slit of a spectrograph. This device enables an exposure time of 9 &mgr;s to be achieved for a 0.8 mm wide spectrograph entrance slit, achieves 100% transmission in the open state, and an essentially infinite extinction ratio. The device further incorporates chopper wheel position sensing electronics to permit the synchronous triggering of a laser source.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: October 29, 2002
    Assignee: Sandia Corporation
    Inventors: Paul C. Miles, Eldon L. Porter, Thomas L. Prast, Duane A. Sunnarborg