Patent ID: 8916265

Claim:
A construct comprising: a front surface and a back surface, a thermally transparent, visually opaque substrate having a first surface proximate the front surface of the construct, and a second surface, said substrate comprising a polymeric layer comprising a colorant incorporated therein, wherein the substrate is free of a colorant coating on said first surface and said second surface, the colorant being present in an amount to facilitate an optical density of greater than about 0.30; wherein the polymeric layer of the first surface comprises polytetrafluoroethylene, microporous expanded polytetrafluoroethylene, fluorinated ethylene propylene, perfluoroalkoxy copolymer resin, or polyolefin; and a thermally reflective layer comprising a low emissivity metallic component applied to the second surface of the substrate by at least one method selected from the group consisting of metal vapor deposition and spray coating metal particles, the thermally reflective layer proximate the back surface of the construct and adapted for orientation towards an object or body to be shielded from detection, wherein the construct has an average reflection of i) <70% in the wavelength range of 400 nm-600 nm, ii) <70% in the wavelength range of 700 nm-1000 nm, iii) >25% and <60% in the wavelength range of 3 μm-5 μm, and iv) >25% and <60% in the wavelength range of 9 μm-12 μm.