To provide an article with a water and oil repellent layer, which is excellent in friction resistance.

The article with a water and oil repellent layer of the present invention comprises a substrate, a water and oil repellent layer consisting of a hydrolyzed condensation product of a compound represented by the formula [A-(OX).sub.m-].sub.jY.sup.1[—Si(R).sub.nL.sub.3-n].sub.g, and a silicon oxide layer containing alkali metal atoms that exists between the substrate and the water and oil repellent layer, wherein the average value of the concentration of alkali metal atoms in a predetermined area in the silicon oxide layer is at least a predetermined value. In the formula, X is a fluoroalkylene group, m is at least 2, j, g, and k are at least 1, and Y.sup.1 and Y.sup.2 are linking groups, R is a monovalent hydrocarbon group, L is a hydrolyzable group or hydroxy group, n is 0 to 2, A is a perfluoroalkyl group or —Y.sup.2[—Si(R).sub.nL.sub.3-n].sub.n. When A is —Y.sup.2[—Si(R).sub.nL.sub.3-n].sub.k, j is 1, and when A is a perfluoroalkyl group and j is 1, g is at least 2.

The present invention relates to a method of manufacturing a window-glass having a print pattern for a smartphone camera, and has an object of enabling various patterns such as rings, dots, curves, and designs to be implemented within the printable extent on a window-glass for a camera.

That is, the present invention provides a method of manufacturing a window-glass for a smartphone camera, comprising a cell-cutting line fabrication process for forming cell-cutting lines on a glass disk for cell separation, a sheet cutting process for cutting the glass disk into units of sheets consisting of a large number of glass cells by a laser, a sheet tempering process for increasing a surface stress of a glass sheet by potassium nitrate and allowing the cell-cutting lines to be clearly formed, a print pattern formation process for forming a pattern on the window-glass through printing, an AR deposition process for forming an AR deposition layer to increase transmittance and reduce reflectance in a rear transmission area of each glass cell, an AF deposition process for forming an AF deposition layer on a front portion of each glass cell to prevent fingerprint and foreign matter contamination, and a cell separation process for separating cells along the cell-cutting lines by pushing the glass cells in units of sheets up or down.

Therefore, the present invention has an effect of enabling various patterns such as rings, dots, curves, and designs to be implemented within the printable extent on a window-glass for a camera.

A method of making a functionalized device for amplification or multiplication of electrons includes making a glass channel array by a laser-induced deep etching process including (1) applying laser pulses to a glass substrate to form an array of modified areas, the glass substrate having a thickness less than 5 mm, the modified areas extending between two surfaces of the glass substrate, and (2) subsequently performing an etching process to selectively remove the modified areas and thereby form an array of through channels. Subsequently, one or more materials are deposited on the glass channel array to form the functionalized device.

A method for making a plasmonic mushroom array includes: forming a plurality of metal nano-islands each having nanometer-range dimensions on a surface of a glass substrate; and subjecting to the glass substrate having the plurality of metal nano-islands formed thereon to reactive ion etching such that the plurality of metal nano-islands are converted to a plurality of mushroom-shaped structures each having a metal cap supported by a pillar made of a material of the glass substrate and each having dimensions smaller than the dimensions of the nano-islands, the plurality of mushroom-shaped structures being arranged in a substantially regular pattern with intervals smaller than average intervals between the nano-islands, thereby forming the plurality of nano-scale mushroom-shaped structures on the glass substrate that can exhibit localized surface plasmon resonance.

A method for producing an article including a substrate and a surface-treating layer formed from a surface-treating agent containing a fluorine-containing silane compound formed thereon, the method including: simultaneously depositing Si and another metal on the substrate to form an intermediate layer containing a composite oxide containing Si; and forming a surface-treating layer directly on the intermediate layer, wherein, the fluorine-containing silane compound is at least one fluoropolyether group-containing compound represented by the following formula (1) or (2):

R.sup.F1.sub.α—X.sup.A—R.sup.Si.sub.β  (1)

R.sup.Si.sub.γ—X.sup.A—R.sup.F2—X.sup.A—R.sup.Si.sub.γ  (2)

where R.sup.F1, R.sup.F2, R.sup.Si, X.sup.A, α, β and γ are as defined herein.

A method for making a plasmonic mushroom array includes: forming a plurality of metal nano-islands each having nanometer-range dimensions on a surface of a glass substrate; and subjecting to the glass substrate having the plurality of metal nano-islands formed thereon to reactive ion etching such that the plurality of metal nano-islands are converted to a plurality of mushroom-shaped structures each having a metal cap supported by a pillar made of a material of the glass substrate and each having dimensions smaller than the dimensions of the nano-islands, the plurality of mushroom-shaped structures being arranged in a substantially regular pattern with intervals smaller than average intervals between the nano-islands, thereby forming the plurality of nano-scale mushroom-shaped structures on the glass substrate that can exhibit localized surface plasmon resonance.

The present invention relates to a chemically strengthened glass with a film, including: a chemically strengthened glass having a pair of main surfaces opposing each other; and a film formed on at least one of the main surfaces of the chemically strengthened glass, in which the chemically strengthened glass has two or less interference fringes observed under stress measurement utilizing surface propagation light having a wavelength of 365 nm, and the film has a refractive index lower than a refractive index of the chemically strengthened glass.

The present invention relates to a perfluoropolyether group-containing silane compound represented by formula (1): Rf—X.sup.1—X.sup.2—NQ.sub.kT.sub.2-k, (1), and a method for preparing the same. The present invention also relates to a perfluoropolyether group-containing silane compound represented by formula (2), ##STR00001##
and a method for preparing the same. The present invention also relates to a perfluoropolyether group-containing silane compound represented by formula (3), ##STR00002##
and a method for preparing the same. The perfluoropolyether group-containing silane compound of the present invention can be used for a surface treatment agent so that the substrates such as glass etc processed by the surface treatment agent are excellent in anti-fouling, anti-fingerprint, scrape resistant and abrasion resistant performances. Moreover, the preparation method of each of the compounds of the present invention is simple in process, easy to operate and implement.

Described herein are apparatuses and methods for holding a substrate in a position that minimizes particle contamination of the substrate when the substrate is being coated. Along with the apparatus, processes for reducing particle reduction on substrates are provided. The articles and processes described herein are useful in making coated glass substrates, such as used in electrochromic, photochromic, or photovoltaic technologies.

An optical article includes a substrate with front and rear main faces, one main face coated with a columnar micro- or nano-structured coating. The substrate and optical article are transparent in at least a part of the visible region ranging from 380 to 780 nm, along at least one incidence angle. The columnar micro- or nano-structured coating includes an array of columns including each a core and an upper layer covering the core, the core and the upper layer being structurally and/or chemically different and have light absorbing properties with an extinction coefficient “k” ≥10-2 in the spectrum 250-2500 nm and are able to cause a change in transmission or in reflection of incident light through the optical article as a function of the angle of incidence of light. Also disclosed is a method for manufacturing an optical article including a columnar micro- or nano-structured coating.