Articles of glasses birefringent and dichroic colores obtained by alteration of the optical glasses, a silver and the silver halide colores additionally

摘要

P the invention relates to the production of articles optically treated in a colored glass additionally silver - halide (s) of silver in order to obtain the properties of absorption and / or light of day. / p & & p & is irradiated at least a portion of the glass by means of the coloured light and / or polarized. / p & & p & application in making spectacles. / p