High-temperature infrared camouflage with efficient thermal management

摘要

Sketch of the scheme combining a wavelength-selective emitter and a thermal insulator for high-temperature IR camouflage, with (left) a typical application on objects requiring high-temperature IR camouflage and (right) the emittance spectrum of an ideal wavelength-selective emitter along with the atmospheric transmittance spectrum. Theoretical surface temperature reduced by thermal insulation and/or radiative cooling in the 5–8 μm wavelength range for Case I in ( ). Contribution to the IR signal intensity reduction of thermal insulation (orange area), low emittance (  = 0.05) in 8–14 μm (red area) and high emittance in 5–8 μm (blue area) for Case II in ( ), at different object temperatures