Coloured glass composition and glazing produced therewith

摘要

Coloured glass composition intended for the production of glazing. The coloured glass according to the invention is a conventional soda-lime glass which includes, as colouring agents, from 1.4 to 4 % of iron oxide expressed as Fe2O3 and from 0 to 0.05 % of cobalt oxide, the cobalt oxide being higher than approximately 0.02 % when Fe2O3 is lower than approximately 2 %, and, optionally, selenium and chromium oxide, it being possible for the sum of CoO + Se + Cr2O3 to reach 0.24 %, the said glass having an overall light transmission factor under illuminant A equal to or lower than approximately 20 % and an overall energy transmission factor equal to or lower than approximately 12 % at a thickness of 3.85 mm. This glass is more particularly employed for the manufacture of glazing intended for the production of a sunroof for a motor vehicle.