Heat-reflecting glass with a good resistance to acids and bases and a good visible light reflecting power

摘要

The present invention relates to a glass coated with a film of oxides of iron and chromium, reflecting thermal radiation.; Such lenses also exhibit good resistance to alkalis and acids and good visible radiation reflective properties if the iron content (x in mcg / cm²) and chromium (y esprimé in mcg / cm²) of the film are as: 0.54 x ≧ y ≧ 0.3 x and advantageously if: 16 to 0.75 x ≧ y ≧ 16 to 1.6 x Such glasses are used in the building.