| 摘要 |
The invention relates to a glass substrate (10) having, on a main side, a stack of thin layers comprising a functional metallic layer (40) with reflective properties in infrared and/or solar radiation, particularly silver-based or based on a metallic alloy containing silver, and two anti-reflective coatings (20, 60), said coatings each comprising at least one dielectric layer (22, 64) silicon-nitride based, possibly doped with at least one other element, such as aluminum, said functional layer (40) being placed between the two antireflective coatings (20, 60), characterized in that the optical thickness ein nm of the underlying antireflective coating (60) is: e=5×e+α, where eis the geometric thickness in nm of the functional layer (40) such as 13≤e≤25, preferably 14≤e≤18, where α is a number equal to 25±15. |
