Patent ID: 6979662

Claim:
Colored soda-lime glass comprising the main glass-forming constituents and coloring agents, characterised in that it comprises: i) a quantity of MgO expressed relative to the total weight of glass which is more than 2%, ii) a quantity of MnO 2 expressed relative to the total weight of glass which is from 40 to 250 parts per million, iii) a quantity of Fe 2 O 3 expressed relative to the total weight of glass which is less than 1.1%, the total quantity of iron being expressed in the form of Fe 2 O 3 , iv) a quantity of Co expressed relative to the total weight of glass which is more than 55 parts per million, and in that it has v) a selectivity (SE4) greater than 1.2, vi) a dominant wavelength (λ D ) less than or equal to 490 nm, and vii) excitation purity (P) greater than 10%.