| abstract |
A neutral gray colored glass composition for automotive vision panels having reduced transmitted color shift characteristics is provided. The glass composition has a base portion including 65 to 75 weight percent SiO 2 , 10 to 20 weight percent Na 2 O, 5 to 15 weight percent CaO, 0 to 5 weight percent MgO, 0 to 5 weight percent Al 2 O 3 , and 0 to 5 weight percent K 2 O. The composition also includes major colorants including 0.30 to 0.75 weight percent Fe 2 O 3 , 0 to 15 ppm CoO, and 1 to 15 ppm Se. The glass has a luminous transmittance of at least 65 percent at a thickness of 3.9 mm, a redox ratio of 0.2 to 0.675, a TSET of less than or equal to 65 percent, and a standard color shift of less than 6. |