A method of manufacturing large lens arrays from glass includes heating glass to take a form of a glass sheet of viscous liquid glass floating on liquid metal. Large lens arrays are made by the method and devices and systems are used for making the large lens arrays. The glass sheet has a lower surface in contact with the liquid metal and an upper surface on an opposite side of the glass sheet away from the liquid metal. The method applies a gas flow on the upper surface of the glass sheet to cause the upper surface of the glass sheet to form a pattern of convex lenses in response to local variations in a pressure profile of the gas flow; and cooling the glass sheet to solidify into a rigid, patterned glass sheet.

A method of manufacturing large lens arrays from glass includes heating glass to take a form of a glass sheet of viscous liquid glass floating on liquid metal. Large lens arrays are made by the method and devices and systems are used for making the large lens arrays. The glass sheet has a lower surface in contact with the liquid metal and an upper surface on an opposite side of the glass sheet away from the liquid metal. The method applies a gas flow on the upper surface of the glass sheet to cause the upper surface of the glass sheet to form a pattern of convex lenses in response to local variations in a pressure profile of the gas flow; and cooling the glass sheet to solidify into a rigid, patterned glass sheet.

A method of forming a coating layer on a glass substrate in a glass manufacturing process includes: providing a first coating precursor material for a selected coating layer composition to at least one multislot coater to form a first coating region of the selected coating layer; and providing a second coating precursor material for the selected coating layer composition to the multislot coater to form a second coating region of the selected coating layer over the first region. The first coating precursor material is different than the second precursor coating material.

A method of forming a coating layer on a glass substrate in a glass manufacturing process includes: providing a first coating precursor material for a selected coating layer composition to at least one multislot coater to form a first coating region of the selected coating layer; and providing a second coating precursor material for the selected coating layer composition to the multislot coater to form a second coating region of the selected coating layer over the first region. The first coating precursor material is different than the second precursor coating material.

A glass for chemical strengthening that is a float-formed glass for chemical strengthening includes, as represented by mass percentage based on oxides, from 65 to 72% of SiO.sub.2, from 3.6 to 8.6% of Al.sub.2O.sub.3, from 3.3 to 6% of MgO, from 6.5 to 9% of CaO, from 13 to 16% of Na.sub.2O and from 0 to 0.9% of K.sub.2O. In the glass for chemical strengthening, (Na.sub.2O+K.sub.2O)/Al.sub.2O.sub.3 is from 2.2 to 5. The glass for chemical strengthening has a sheet thickness (t) of 0.1 mm or more and 2 mm or less. A SnO.sub.2 amount of a bottom surface in an unpolished state of the glass for chemical strengthening is 6.2 μg/cm.sup.2 or less (0.1≦t≦1 mm) or (2t+4.2) μg/cm.sup.2 or less (1<t≦2 mm).

The present invention relates to a glass substrate including a pair of main surfaces and an end surface, and having a surface layer diffusion Sn atom concentration of 2.0×10.sup.18 atomic/cm.sup.3 or more and 1.4×10.sup.19 atomic/cm.sup.3 or less in at least one of the main surfaces, the surface layer diffusion Sn atom concentration being obtained by subtracting an Sn atom concentration of an inside of the glass substrate from an Sn atom concentration of a surface layer of the glass substrate, in which the Sn atom concentration of a surface layer of the glass substrate is defined as an Sn atom concentration at a depth of 0.1 to 0.3 μm from the main surface and the Sn atom concentration of an inside of the glass substrate is defined as an Sn atom concentration at a depth of 9.0 to 9.2 μm from the main surface.

A method for producing a glass sheet is disclosed. In an embodiment a method includes applying a plurality of supporting bodies to the glass sheet, wherein applying the supporting bodies to the glass sheet includes performing a float glass process while producing the glass sheet, and wherein the supporting bodies are applied while the glass sheet has a temperature above a glass transition temperature so that the supporting bodies partially fuse with the glass sheet.

A glass ribbon includes a first major surface extending along a first plane. The glass ribbon includes a second major surface extending along a second plane substantially parallel to the first plane. A first thickness is defined between the first major surface and the second major surface along a thickness direction perpendicular to the first major surface. The first thickness is within a range from about 25 m to about 125 m. An edge surface extends between the first plane and the second plane. The edge surface comprises a height in the thickness direction that is less than the first thickness. Methods of manufacturing a glass ribbon are also provided.

A glass ribbon includes a first major surface extending along a first plane. The glass ribbon includes a second major surface extending along a second plane substantially parallel to the first plane. A first thickness is defined between the first major surface and the second major surface along a thickness direction perpendicular to the first major surface. The first thickness is within a range from about 25 m to about 125 m. An edge surface extends between the first plane and the second plane. The edge surface comprises a height in the thickness direction that is less than the first thickness. Methods of manufacturing a glass ribbon are also provided.

A method of making a coated article includes forming a first coating over a first surface of a substrate; and forming a second coating over a second surface of the substrate. The second coating includes a first conductive layer including tin oxide and at least one material selected from the group consisting of tungsten, molybdenum, and niobium.