Patent ID: 7005182

Claim:
Solar control glazing comprising: a substrate made of coloured soda-lime glass composed of main glass-forming constituents and of colouring agents, the substrate being chosen from one of the following (A) through (C): (A) the coloured glass is a grey-green soda-lime glass composed of main glass-forming constituents and of colouring agents which comprises less than 0.4% by weight of FeO and from 0.9% to 1.8% of Fe 2 O 3 ; (B) the coloured glass is a green-coloured soda-lime glass which comprises the following percentages by weight of colouring agents, Fe 2 O 3:0.7 % to 1.3%, FeO: 0.18% to 0.27%, Co:0% to 0.0040%, and V 2 O 5 :0.0050% to 0.1%; (C) the coloured glass is a blue coloured soda-lime composed of main glass forming constituents including more than 2% of magnesium oxide, and of colouring agents which comprises more than 1.1% by weight of Fe 2 O 3 , less than 0.53% by weight of FeO and less than 0.13% of manganese oxide; a pyrolytic coating deposited on the coloured glass substrate which provides the coated glazing with a decreased light transmission (LT) and a decreased energy transmission (ET) with respect to the light transmission and energy transmission of the uncoated coloured glass, the coated substrate being further characterized by a light transmission (LT) equal or greater than 25.1% relative to a substrate having a thickness of 4 mm.