Patent ID: 7071133

Claim:
A neutral gray colored glass composition for automotive vision panels having reduced transmitted color shift characteristics, the glass composition having a base portion comprising: SiO 2 65 to 75 weight percent Na 2 O 10 to 20 weight percent CaO 5 to 15 weight percent MgO 0 to 5 weight percent Al 2 O 3 0 to 5 weight percent K 2 O 0 to 5 weight percent and major colorants comprising: Fe 2 O 3 (total iron) 0.30 to 0.75 weight percent CoO 0 to 15 ppm Se 1 to 15 ppm wherein the glass has a luminous transmittance of at least 65 percent at a thickness of 3.9 mm, a redox ratio of equal to or greater than 0.4, a TSET of less than or equal to 65 percent, a dominant wavelength ranging from 480 nm to 560 nm and a standard transmitted color shift of less than 6.