Patent ID: 7807248

Claim:
A transparent substrate bearing a solar control low-emissivity coating, the coating comprising: an innermost infrared-reflective film comprising silver and an outermost infrared-reflective film comprising silver; a first dielectric absorber film between the substrate and the innermost infrared-reflective film, the first dielectric absorber film having a coefficient of extinction (k) of greater than 0.4 and having a neutral absorption ratio of k 380<λ<450 nm /k 650<λ<760 nm between 0.52 and 1.9; a second dielectric absorber film further from the substrate than the outermost infrared-reflective film, the second dielectric absorber film having a coefficient of extinction (k) at 550 nm of greater than 0.4 and having a neutral absorption ratio of k 380<λ<450 nm /k 650<λ<760 nm between 0.52 and 1.9; and the coating is either a double-type low-emissivity coating or a triple-type low emissivity coating, if the coating is a double-type emissivity coating, then it has a middle coat located between said two infrared-reflective films and the middle coat consists essentially of transparent dielectric film; and if the coating is a triple-type coating, then it further includes an intermediate infrared-reflective film comprising silver and it has two spacer coats each located between two of the infrared-reflective films and each consisting essentially of transparent dielectric film.