Three-layer hardenable anti-reflective coating, the article including a three-layer hardenable anti-reflective coating, and / or method of manufacturing the same.

摘要

A coated article comprising: an antireflection coating (3) supported by a main surface of a glass substrate (1), heat treating the glass substrate together with the antireflection coating, wherein the antireflection coating (3) comprises, starting from the glass substrate (1): a middle index layer (5) comprising silicon oxynitride and having a refractive index of from about 1.65 to 2.0 at 380nm, 550nm and 780nm of lengths of wave, a high index layer (7), contacting the middle index layer and having a thickness of from 5 to 50 nm and having a refractive index of at least about 2.0 to 380 nm, 550 nm and 780 nm wavelengths, and a low index layer (9), which contacts the high index layer and has a refractive index of from about 1.4 to 1.6 at 380 nm, 550 nm and 780 nm wavelengths, where med index layer (5) io has residual compression stress after heat treatment, and wherein the high index layer (7) comprises a titanium oxide and the low index layer (9) comprises silicon oxide.