摘要 |
Transparent substrate (1), especially of glass, with thin multilayers, on which the following are deposited in succession: - a first coating of dielectric material (2), - a first layer (3) with properties of reflection in the infrared, especially metal-based, - a second coating of dielectric material (5), - a second layer (6) with properties of reflection in the infrared, especially metal-based, - a third coating of dielectric material (8), characterised in that the thickness of the first layer with properties of reflection in the infrared (3) corresponds to approximately 50 to 80 %, especially 55 to 75 % and preferably 60 to 70 %, of that of the second layer with properties of reflection in the infrared (6). <IMAGE> |