Saint-gobain Glass France

Saint Gobain Isover

Saint-gobain Placo

Brice Dubost

Emmanuel Mimoun

Mathieu Berard

Jean-Philippe Schweitzer

Pascal Bauerle

Nicolas Nadaud

Christophe Kleo

Michele Schiavoni

Adèle Verrat-Debailleul

Mauricette Rondet

Stéphanie Morlens

Laetitia Massault

Francois Sausset

Matthieu Berard

François Sausset

Guillaume Counil

Adële Verrat-de-Bailleul

At least one acoustic parameter of an environment is obtained by emitting a sound signal emitted, receiving a sound signal received, estimating a sampling frequency shift and of a temporal shift between the emission and reception devices on the basis of impulse responses obtained on the basis of portions of the sound signal received and of corresponding portions of the sound signal emitted, obtaining a corrected sound signal received by applying to the sound signal received a sampling frequency shift correction and a temporal shift correction on the basis of the estimating, determining the impulse response of the environment on the basis of portions of the corrected sound signal received and of corresponding portions of the sound signal emitted, and obtaining acoustic parameters of the environment on the basis of the impulse response.

Method and system for obtaining at least one acoustic parameter of an environment

A glass sheet includes a symbol marked in the interior of the glass, the symbol forming a code. The symbol is marked in at least two dimensions including the dimension of the thickness of the glass sheet, portions of the symbol being marked at various depths in the thickness of the glass sheet.

Glass sheet with identification code

In a process for obtaining a transparent substrate including a refractive index modulation pattern, a transparent substrate is irradiated with a laser radiation focused on the substrate in the form of at least one laser line, where the substrate at least partially absorbs the laser radiation, a relative movement is generated between the substrate and the laser line focused on the substrate, in a direction (X) transverse to the longitudinal direction (Y) of the laser line, and, in the course of this relative movement, the power of the laser line is temporally modulated as a function of the speed of the relative movement and as a function of the dimensions of the pattern in the direction (X) of the relative movement.

Process for obtaining a substrate

A process for obtaining a substrate provided with a coating, in which the coating includes a pattern with spatial modulation of at least one property of the coating, includes performing a heat treatment, using a laser radiation, of a continuous coating deposited on the substrate. The heat treatment is such that the substrate is irradiated with the laser radiation focused on the coating in the form of at least one laser line, keeping the coating continuous and without melting of the coating, and a relative displacement of the substrate and of the laser line focused on the coating is imposed in a direction transverse to the longitudinal direction of the laser line, while temporally modulating during this relative displacement the power of the laser line as a function of the speed of relative displacement and of the dimensions of the pattern in the direction of relative displacement.

Process for obtaining a substrate provided with a coating

A luminous glazing unit includes a first glass substrate, made of mineral glass and in optical contact with a second glass substrate, a polymer layer, selected from a lamination interlayer, associated with a tinted and/or reflective element, and/or an opaque polymer encapsulation, a porous silica layer, underneath the polymer layer, a light source, optically coupled to the first glass substrate, and a light-extracting device associated with the first glass substrate, a mineral and transparent protective coating made of silica, directly on the porous silica layer and directly underneath the polymer layer.

Luminous glazing unit with optical isolator and manufacture thereof

A luminous glazing unit for architectural use or use in furnishings or a system of public transport, includes a first glazing pane, made of organic or mineral glass, of refractive index nof at least 1.4 with first and second main faces; a light source, coupled to the first glazing pane; and a light-extracting system including a scattering layer of width of at least 1 cm including scattering dielectric particles bound by a transparent matrix of refractive index n. The scattering particles are mainly microparticles that are spaced apart from one another and that include a shell made of a transparent dielectric material and making contact with the transparent matrix, the shell surrounding a core of refractive index nof at most 1.15 and of largest dimension called Din a range extending from 5 &#x3bc;m to 200 &#x3bc;m, the microparticles having a largest dimension called D' smaller than 2D

Luminous glazing unit for architectural use or use in furnishings or a means of public transport

A luminous automotive-vehicle glazing unit includes a first glazing pane, made of organic or mineral glass, of refractive index nof at least 1.4 with first and second main faces; a light source coupled to the first glazing pane; and a light-extracting system including a scattering layer of width of at least 1 cm including scattering dielectric particles bound by a transparent matrix of refractive index n. The scattering particles are mainly microparticles that are spaced apart from one another and that include a shell made of a transparent dielectric material and making contact with the transparent matrix, the shell surrounding a core of refractive index nof at most 1.15 and of largest dimension called Din a range extending from 5 &#x3bc;m to 200 &#x3bc;m, the microparticles having a largest dimension D' smaller than 2D.

Luminous automotive-vehicle glazing unit and automotive vehicle with such a glazing unit

A method for reading symbols forming a code, the symbols each being marked on one face of a number of glass sheets in proximity to the same edge face of the glass sheets, the glass sheets being arranged in a stack. The method includes acquiring, with a camera, at least one image via the edge face of the glass sheets, the observation direction being non-perpendicular and inclined relative to the edge face of each of the glass sheets the code of which is read with the image; and an image processing step in which the acquired image is processed by a processor programmed to extract information present in at least one code visible in the image and having to be read.

Method for reading an identification code on a glass sheet

A laser apparatus includes a plurality of laser modules each generating a laser line in a working plane. The laser modules are juxtaposed so that the laser lines generated by the modules combine into a single laser line. Each of the laser modules includes at least one laser line generator and a laser line shaper. The laser line shaper includes an array of microlenses such that the final laser line generated by each laser module has, in the working plane, a power density profile with a width (L) at 90% of the maximum power density and a width (L) at 10% of the maximum power density. A ratio L/Lis between 1/15 and 1/5.

Modular laser apparatus

A lighting glazing includes a first sheet of glass of refractive index nwith a first main face, a second main face and a rim; a transparent polymer film in adhesive contact with the second main face of the first sheet, the film having a refractive index nn; a light source positioned facing the rim of the first sheet of glass, wherein an area of the second main face of the first sheet of glass is provided with a reflecting relief or else is covered with a transparent flat structure, of refractive index ngreater than or equal to n, provided with a reflecting relief.

Illuminating glazing with incorporated deflector

A laser apparatus includes a plurality of laser modules each generating a laser line in a working plane. The laser modules are juxtaposed so that the laser lines generated by the modules combine into a single laser line. Each of the laser modules includes at least one laser line generator. The laser line generator includes two linear arrays of strips of laser diodes each emitting a focused laser beam. The two linear arrays are arranged parallel to each other so that the strips are staggered. The two sets of parallel laser beams generated by the two linear arrays of strips, respectively, are merged into a single laser line by a set of mirrors. The linear arrays of strips of laser diodes and the mirrors are arranged so that the two sets of laser beams trace optical paths of the same length before being merged into a single laser line.

Growing community of inventors

Courbevoie, France

Brice Dubost