Skip to Content
Find More Like This
Return to Search

Full spectrum optical safeguard

United States Patent

December 2, 2008
View the Complete Patent at the US Patent & Trademark Office
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.
Ackerman; Mark R. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
11/ 135,865
May 23, 2005
This invention was made with Government support under Contract No. DE-AC004-94AL85000 awarded by the Department of Energy. The Government has certain rights in the invention.