GLASS COMPOSITION INCLUDING SULFIDES HAVING LOW VISIBLE AND IR TRANSMISSION

摘要

A soda-lime-silica based privacy glass, having a visible transmission (Lta) of no greater than 25 % and an infrared (IR) transmission no greater than 25 %, includes the following colorants in addition to the base glass: total iron (expressed as Fe2O3 ): 0.1 to 1.0 %; cobalt oxide (e.g., Co3O4): 0 to 1,000 ppm; sulfides (S<2>): 0.0001 to 0.10 %. In certain other embodiments the visible transmission may be higher, but low IR transmission is still realized.