US 2022/0017408 A1 · COATED GLASS ARTICLES AND PROCESSES FOR PRODUCING THE SAME

Abstract

According to one embodiment, a method for producing a coated glass article may include applying an anti-reflective coating onto a glass substrate. The glass substrate may include a first major surface, and a second major surface opposite the first major surface. The anti-reflective coating may be applied to the first major surface of the glass substrate. A substrate thickness may be measured between the first major surface and the second major surface. The glass substrate may have an aspect ratio of at least about 100:1. The coated glass article may have a reflectance of less than 2% for all wavelengths from 450 nanometers to 700 nanometers. The anti-reflective coating may include one or more layers. The cumulative layer stress of the anti-reflective coating may have an absolute value less than or equal to about 167,000 MPa nm.

Claims19

Dependent claims

A coated glass article comprising:

a glass substrate comprising a first major surface, a second major surface opposite the first major surface, and a substrate thickness measured between the first major surface and the second major surface, the glass substrate having an aspect ratio of at least about 100:1;
an anti-reflective coating comprising one or more layers, each layer comprising a layer thickness (t) and a film stress (α), wherein a cumulative layer stress of the anti-reflective coating has an absolute value less than or equal to about 167,000 MPa nm, wherein the cumulative layer stress is defined as Σi=1n(αi×ti) for an anti-reflective coating comprising n layers;
and
wherein:
the coated glass article having a reflectance of less than or equal to about 2% for all wavelengths from 450 nm to 700 nm when viewed on the first major surface at an angle of incidence of less than or equal to about 10°;
and
the coated glass article has a bow of from about −100 microns to 100 microns.

4 more elements

A method for producing a coated glass article, the method comprising:

applying a first coating onto a first major surface of a glass substrate to form an intermediate coated glass substrate, wherein:
the glass substrate comprises the first major surface, a second major surface opposite the first major surface, and a substrate thickness measured between the first major surface and the second major surface;
the glass substrate having an aspect ratio of at least about 100:1;
and
the intermediate coated glass substrate having a warp of at least about 150 microns subsequent to application of the first coating and prior to an application of a second coating;
applying the second coating onto the second major surface of the glass substrate to form the coated glass article, wherein:
the warp of the coated glass article subsequent to application of the second coating is less or equal to about 150 microns;
and
at least one of the first coating and the second coating is an anti-reflective coating such that the coated glass article having a reflectance of less than or equal to about 2% for all wavelengths from 450 nm to 700 nm when viewed on a surface comprising an anti-reflective coating at an angle of incidence of less than or equal to about 10°.

6 more elements

Dependencies are inferred from the claim text.

Coated glass articles and processes for producing the same

Life of this patent

Coated glass articles and processes for producing the same

Life of this patent

Abstract

Claims19