Patent ID: 6531422
Filing Date: 2003-03-11
Classification: C03C,Y10S

Abstract:
A glazing set mounted on an automobile vehicle, comprising a wind screen, front side windows, rear side windows and a rear window, wherein each of the rear side windows and the rear window comprises a glazing pane comprising a colored glass sheet having a thickness of from about 2 to 8 millimeters, wherein the colored glass sheet has a composition consisting essentially of the following oxides in the following amounts by weight:SiO264 to 75%Al2O30 to 5%B2O30 to 5%CaO5 to 15%MgO0 to 5%Na2O10 to 18%K2O0 to 5%and as coloring agents:Fe2O3 (total iron)0.45 to 2.5%with FeO content being from 16-55% of thetotal iron expressed as Fe2O3CoO0.001 to 0.02%Se0 to 0.0025%Cr2O30.025 to 0.090%wherein the glasses have a total energy transmission factor (TE) less than the light transmission factor under illuminant A (TLA), the factor TE being from 10 to 48%, and the factor TLA being from 20 to 60% for a thickness of 3.85 millimeters, said glasses having a dominant wavelength under illuminant C extending from 490 to 560 nm; wherein each of the rear side windows and the rear window, comprises, respectively, panes, which, for a given thickness, have total different light transmission factors under illuminant A; and wherein the total light transmission factors vary between 30 to 60% for each of the rear side windows, and between 20 to 45% for each of the rear windows.