NON-PHOTOCHROMIC, COLORED, BOROSILICATE INORGANIC GLASSES WHICH ABSORB ULTRAVIOLET, AND PREPARATIONS

摘要

The object of the present invention is non-photochromic, colored, borosilicate inorganic glasses, which absorb ultraviolet and which contain effective amounts of silver, of copper, of halogen(s), of reducing agent(s) and of colorant(s). The present invention also relates to the preparation of said glasses. Within the context of said preparation, borosilicate glasses, which absorb ultraviolet and which are of various colors, can be obtained from a single crude borosilicate glass.