Cover, typically for swimming pool, with low emissivity of one layer, and cover being transparent in optical wavelength range

摘要

594410 A cover, typically for a swimming pool, has one layer of low emissivity coefficient at a minimum wavelength of 2500 nm, and the cover has a high transmittance of radiation with wavelengths in a second wavelength range including the range of 400 to 1100 nm so as to be transparent in the spectrum of light visible to the human eye.