Composition for colored glass intended for the manufacture of glazing panes

Claim 1

A glazing set mounted on an automobile vehicle, comprising a windscreen, front side windows and rear side windows and a rear window, wherein each of the rear side windows, both movable and fixed, and the rear window comprise a glazing pane comprising a coloured glass sheet having a thickness of from 2 to 8 millimeters, wherein the coloured glass sheet has a composition comprising the following oxides within the following limits by weight: ______________________________________ SiO.sub.2 64 to 75% Al.sub.2 O.sub.3 0 to 5% B.sub.2 O.sub.3 0 to 5% CaO 5 to 15% MgO 0 to 5% Na.sub.2 O 10 to 18% K.sub.2 O 0 to 5% ______________________________________ and, consisting essentially of, as colouring agents: ______________________________________ Fe.sub.2 O.sub.3 (total iron) 0.5 to 1.5% with FeO content representing from 16 to 55% of the total iron content expressed in the form of Fe.sub.2 O.sub.3 CoO 0.003 to 0.015% Cr.sub.2 O.sub.3 0.025 to 0.09% Se 0 to 0.0025% ______________________________________ wherein the glasses have a total energy transmission factor (T E ) less than the light transmission factor under illuminant A (TL A ), the factor T E being from 10 to 48% and the factor TL A from 20 to 60% for a thickness of 3.85 millimeters.