Patent ID: 7162892

Claim:
A method for reducing the defect density of glass produced via a float glass process comprising: a. melting a glass composition consisting essentially of: from 65–75 wt. % of SiO 2 ; from 10–20 wt. % of Na 2 O; from 5–15 wt. % of CaO; from 0–5 wt. % of MgO; from 0–5 wt. % of Al 2 O 3 ; from 0–5 wt. % of K 2 O; from 0–2 wt. % Fe 2 O 3 ; from 0–2 wt. % FeO; from 0.0 to 2.0 wt. % TiO 2 ; and from 0.0 to 2.0 wt. % neodymium, wherein the glass composition has a total field strength index of greater than or equal to 1.23.