Electrochromic Devices for Controlling Infrared Emissivity

Electrochromic devices that exhibited adjustable infrared emissivity were developed in a research program that was part of a larger effort to develop adaptive infrared camouflage. Inasmuch as objects that one seeks to conceal by use of camouflage are generally hotter than their surroundings, the basic idea of adaptive infrared camouflage is to reduce the infrared emissivity of an object of interest by a controllable amount so that, as viewed via an infrared camera, the object blends into the background.