FIELD: physics.
SUBSTANCE: glass is coated with layers in the following sequence, starting from the glass: the first silicon nitride based dielectric layer, a NiCr layer, the second silicon nitride based dielectric layer, a NiCr layer, the third silicon nitride based dielectric layer. The second NiCr layer has the thickness of 140-220 E and is at least twice thicker than the first NiCr layer.
EFFECT: improved colour control and high heat resistance.
27 cl, 2 dwg, 6 tbl
