Patent ID: 11906700
Assignee: SCHOTT AG
Field: Surface technology, coating (Chemistry)
Classification: CPC G  C  H | IPC C  G  H

Claim 0:
1. A coated glass ceramic substrate, comprising:
a glass ceramic substrate with a first side and a second side; and
a multilayer antireflection coating on on at least one of the first and/or second sides, wherein the multilayer antireflection coating comprises at least four successive layers having different refractive indices, wherein layers having a higher refractive index alternate with layers having a lower refractive index, wherein the layers having the lower refractive index are formed of silicon oxide with a proportion of aluminum, and
wherein the multilayer antireflection coating reduces reflectance of the coated glass ceramic substrate as compared to the glass ceramic substrate by more than 3% throughout an entirety of a wavelength range from 400 nm to at least 700 nm.