Patents by Inventor Mark R. Ackerman

Mark R. Ackerman 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).

  • Patent number: 7460247
    Abstract: An optical safeguard device with two linear variable Fabry-Perot filters aligned relative to a light source with at least one of the filters having a nonlinear dielectric constant material such that, when a light source produces a sufficiently high intensity light, the light alters the characteristics of the nonlinear dielectric constant material to reduce the intensity of light impacting a connected optical sensor. The device can be incorporated into an imaging system on a moving platform, such as an aircraft or satellite.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: December 2, 2008
    Assignee: Sandia Corporation
    Inventor: Mark R. Ackerman