Building A Better "Eyelid" For Cameras

A Hostile laser attack can blind fighter pilots or the cameras and electronic sensors of a military satellite in the blink of an eye. To counter that threat, Paul H. Holloway and a team of engineers from the University of Florida in Gainesville have developed an "artificial eyelid" for lenses, a thin film that can "blink shut" in just one-10,000th of a second. Holloway unveiled a working prototype in early March at a conference of the International Society for Optical Engineering.

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