The invention relates to a glass substrate for chemical strengthening where a side is treated by ion implantation so as to reduce the extent of ion exchange upon chemical strengthening. Other embodiments relate to a method for making a chemically strengthened glass substrate with controlled curvature comprising: providing a substrate having first and second opposing sides, wherein the substrate presents in the surface layer of at least part of the first side a first ion implantation profile that reduces the extent of ion exchange upon chemical strengthening and chemically strengthening the ion implantation treated glass substrate. The parameters of the ion implantation are chosen such that a controlled curvature is obtained upon chemical strengthening.

A veiling glare reduction system comprising a glass dashboard part providing increased driver visual comfort, particularly a glass dashboard part arranged so that light passing through the windshield and reflected off the glass dashboard surface is partly reflected by the inner windshield surface towards a driver position providing a reduced veiling glare. A head up display system provided with a glass dashboard part having reduced veiling glare is also provided.

A method of treating a glass cylinder for a piston-cylinder arrangement for reducing the friction of a piston on an inner cylinder wall of the glass cylinder includes: elevating surface energy of glass of an interior bounded by the inner cylinder wall and hence lowering a contact angle of the glass with water. The contact angle is lowered by: a gas discharge that acts on the glass at the inner cylinder wall and is generated by an electric or electromagnetic field; or the action of ozone on the glass surface. The glass with the lowered contact angle is contacted with water to form a water film on the contacted glass.

A method of treatment using a beam of singly- and multiply-charged gas ions produced by an electron cyclotron resonance (ECR) source of a glass material in which the ion acceleration voltage of between 5 kV and 1000 kV is chosen to create an implanted layer of a thickness equal to a multiple of 100 nm; the ion dose per surface unit in a range of between 1012 ions/cm2 and 1018 ions/cm2 is chosen so as to create an atomic concentration of ions equal to 10% with a level of uncertainty of (+/)5%. Advantageously this makes it possible to obtain materials made from glass that is non-reflective in the visible range

A method of treatment using a beam of singly- and multiply-charged gas ions produced by an electron cyclotron resonance (ECR) source of a glass material in whichthe ion acceleration voltage of between 5 kV and 1000 kV is chosen to create an implanted layer of a thickness equal to a multiple of 100 nm; the ion dose per surface unit in a range of between 1012 ions/cm2 and 1018 ions/cm2 is chosen so as to create an atomic concentration of ions equal to 10% with a level of uncertainty of (+/)5%. Advantageously this makes it possible to obtain materials made from glass that is non-reflective in the visible range.

A method of detecting defects of a glass substrate includes cutting a glass mother substrate into a plurality of glass substrates, penetrating ions into an incision surface of the glass substrate to visualize defects of the incision surface, and photographing the defects of the incision surface to determine a bending strength of the glass substrate based on a size of the defects.

An apparatus for performing a selenization and sulfurization process on a glass substrate is introduced. A low-cost, non-toxic selenization and sulfurization process is performed on a large-area glass substrate in a normal-pressure environment with the apparatus to turn element selenium or sulfur into small molecules of high activity at high temperature by pyrolysis or by plasma, especially linear atmospheric pressure plasma. The process is finalized by dispersing the selenium or sulfur molecules uniformly and allowing the glass substrate to undergo reciprocating motion precisely, thereby achieving large-area, uniform selenization and sulfurization of the one-piece glass substrate.

A manufacturing method of an optical member includes providing a raw member, disposing first ions and second ions in the raw member, and heat-treating the raw member with the first and second ions therein such that the first ions are reacted with the second ions in the raw member to form quantum dots in the raw member which forms the optical member.

One or more aspects of the disclosure pertain to an article including a film disposed on a glass substrate, which may be strengthened, where the interface between the film and the glass substrate is modified, such that the article has an improved average flexural strength, and the film retains key functional properties for its application. Some key functional properties of the film include optical, electrical and/or mechanical properties. In one or more embodiments, the interface exhibits an effective adhesion energy of about less than about 4 J/m.sup.2. In some embodiments, the interface is modified by the inclusion of a crack mitigating layer containing an inorganic material between the glass substrate and the film.

The present invention relates to a substrate comprising an ion-implanted layer, for example a cation, wherein the ion implanted layer has a uniform distribution of the implanted ions at a significantly greater depth than previously possible. The invention further comprises said substrate wherein the substrate is a silicon based substrate, such as glass. The invention also comprises the use of said material as a waveguide and the use of said material in measurement devices.