Decorative substrate, especially costume jewelry gem with color effect and method for achieving color effect in decorative transparent substrate

摘要

dekoracnu00ed substrate, in particular biu017euternu00ed stone with a colour effect, the essence of which is that it is tvoren transparent substrateon the rear side in the following advice which from the back side contains 2 to 80 nm thick optically modifying layer, at least one element or tvorenou carbon element of the package comprising ge.and oxides, zr, nb and al which are possibly doped with other elements, reflective layer, at least one metal or alloy of tvorenou package comprising au, ag, cu, al, cr, ti,aluminium and alloy was au, ag and cu, and having tlouu0161tku to ensure maximum reflection to incident visible light depending on the spectral reflectivity of materialfrom which to conduct this reflective layer made back into the transparent substrate 10 to 100 nm thick interlayer, at least one metal of the tvorenou package comprising ti, cr and cu, and a layer of protective varnish.between the optically modifying layer and the reflecting layer is possibly contained 2 to 15 nm thick adhesive layer, by the at least one carbon metal from the metal comprising al, zr and sn.the way the color effect for dekoracnu00edho transparent substrate includes a transparent substrate on the back side of the specified layers of sputter deposition under vacuum and an heat zpracovu00e1a transparent substrate at a temperature greater than 150.degree.c, but less than the temperature at which distortion of any of the layers or to the adverse interaction between layers, for a period of 0.5 to 8 hours.