Full spectrum optical safeguard

Details Full spectrum optical safeguard Full spectrum optical safeguard

2005-05-23

2008-12-02

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

By light interference

Having partially reflecting plates in series

C359S577000

Reexamination Certificate

active

07460247

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.

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