Patent ID: 7678722

Claim:
A glass sheet comprising: a base glass composition 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, and K 2 O 0 to 5 weight percent; a colorant and property modifying portion consisting essentially of: total iron expressed in terms of weight percentage of “Fe 2 O 3 ” ranging from equal to or less than 0.60 weight percent; TiO 2 ranging from 0.1 to 1.0 weight percent, and a redox ratio ranging from 0.36 to 0.42, wherein the weight percents are based on the total weight of the composition, and the redox ratio is the amount of iron in the ferrous state expressed as “FeO” divided by the amount of total iron expressed as “Fe 2 O 3 ”, and the glass sheet exhibits the following performance properties at a thickness of 0.189 inches (4.8 mm): an Lta of at least 70%; a TSET of up to 48%; a SAE UV of up to 55%; a dominant wavelength ranging from 495 to 535 nm; and a Pe of at least 1%.