Abstract: A dadome with a surface varying refraction angle for phased array antennas, includes an electromagnetic wave active area which consists of a dielectric substrate and two dual-polarized meta-surfaces. The dual-polarized meta-surfaces are made of plurality of periodically arranged metallic meta-atoms with open, rotational symmetric, and non-continuous geometrical patterns. The meta-atoms overlap complementarily between the two sides of the dielectric substrate and are periodically arranged into at least two groups covering a space region the angular radiation pattern of a planar array antenna. The geometric dimensions of the meta-atoms vary within each group so that to form an electromagnetic transmissive phase gradient within that group and different from one group to another. The periodicity ?p of the meta-atoms is between ?/4 and ?/1.3, ? being the wavelength of an incident electromagnetic wave from a planar array antenna.

Abstract: A laminated glazing of a vehicle with a first extra clear glass sheet (exterior glazing), a lamination interlayer and a second glass sheet (interior glazing) with a through-hole in this second sheet including a polymer piece.

Abstract: A laminated glazing of a vehicle includes a first extra clear glass sheet (exterior glazing), a lamination interlayer and a second glass sheet (interior glazing) with a through-hole in this second sheet including a mineral piece.

Abstract: A translucent glass pane-type substrate, adapted to serve as a cover element for a photovoltaic cell, the substrate including at least one textured surface intended to be oriented towards the outside of a building and wherein for any texture orientation, the fraction of local surfaces having said texture orientation is less than or equal to 2×10?4 of a given sampling surface

Abstract: A method for analyzing a glazing for a correction intended to be used by a LiDAR configured to emit, according to a given angle of emission, light waves intended to pass through a vehicle glazing, includes for a plurality of points of the glazing: obtaining a horizontal local slope and a vertical local slope at the point; calculating a vertical angular offset and a horizontal angular offset based on a vertical component and on a horizontal component of the angle of emission of the light wave passing through the glazing at the point, of the vertical local slope and of the horizontal local slope at the point and of the inclination of the glazing; and establishing an angular correction map from calculated vertical angular offsets and horizontal angular offsets.

Abstract: According to a first aspect, a method of designing a radome may include defining a set number N of flight paths FPN, where each flight path FPN is between a first city and a second city, determining a Looking Angle Distribution (L?-Dist) for each flight path FPN, calculating a Combination Looking Angle Distribution (Combo-L?-Dist) for the set number N of flight paths FPN, determining a Combination Incidence Angle Distribution (Combo-I?-Dist) corresponding the Combo-L?-Dist, and tailoring at least one radome shell structural component of the radome to minimize electromagnetic degradation of electromagnetic waves intersecting the radome at angles within the Combo-I?-Dist.

Abstract: An article used as black or dark-colored front-projection screen includes two distinct diffusely reflecting scattering elements, taking the form of parallel sheets or planes, qualified first and second scattering elements, wherein the first scattering element is translucent or transparent and the second scattering element is of dark color.

Abstract: A process for obtaining a material including a substrate coated on one of its sides with a coating including a functional layer, includes depositing the functional layer on the substrate, then depositing an absorbent layer on top of the functional layer, then performing a heat treatment by radiation, the radiation having at least one treatment wavelength between 200 and 2500 nm, the absorbent layer being in contact with air during the heat treatment, wherein the ab sorb ent layer ab sorbs at least 80% of the radiation used during the heat treatment and transmits less than 10% thereof.

Abstract: An article used as black or dark-colored front-projection screen includes two distinct diffusely reflecting scattering elements, taking the form of parallel sheets or planes, qualified first and second scattering elements, wherein the first scattering element is translucent or transparent and the second scattering element is of dark color.

Abstract: A radome may include a core and an outer dielectric constant (ODC) adaptation component overlying an outer surface of the core. The radome may have an effective dielectric constant variation profile from an outer surface of the ODC adaptation component, through the ODC adaptation component to an outer surface of the core. The effective dielectric constant variation profile of the ODC adaptation component may be a continuous monotonic function DC(ot), where DC(ot) is the dielectric constant of the ODC adaptation component at the value ot, where ot is a ratio OTL/OTT, OTL is a location within the ODC variation component measured from the outer surface of the ODC variation component, and OTT is the total thickness of the ODC adaptation.

Abstract: A method includes aligning a plurality i of juxtaposable laser lines in order to form a continuous overall laser line suitable for heat treating a planar substrate capable of being made to move rectilinearly in a first direction, each laser line being formed by a module that emits a laser line onto the surface S of the planar substrate, on which surface a heat treatment is capable of being carried out.

Abstract: A radome may include a core and an outer dielectric constant (ODC) adaptation component overlying an outer surface of the core. The radome may have an effective dielectric constant variation profile from an outer surface of the ODC adaptation component, through the ODC adaptation component to an outer surface of the core. The effective dielectric constant variation profile of the ODC adaptation component may be a continuous monotonic function DC(ot), where DC(ot) is the dielectric constant of the ODC adaptation component at the value ot, where ot is a ratio OTL/OTT, OTL is a location within the ODC variation component measured from the outer surface of the ODC variation component, and OTT is the total thickness of the ODC adaptation.

Abstract: 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.

Abstract: The subject of the invention is a process for obtaining a substrate provided on at least one portion of at least one of its sides with a coating, comprising a step of depositing said coating on said substrate, then a step of heat treatment of said coating using a pulsed or continuous laser radiation focused on said coating in the form of at least one laser line, the wavelength of which is within a range extending from 400 to 1500 nm, said heat treatment being such that a relative displacement movement is created between the substrate and the or each laser line, the speed of which is at least 3 meters per minute, the or each laser line having a beam quality factor (BPP) of at most 3 mm·mrad and, measured at the place where the or each laser line is focused on said coating, a linear power density divided by the square root of the duty cycle of at least 200 W/cm, a length of at least 20 mm and a width distribution along the or each line such that the mean width is at least 30 micrometers and the difference betwe

Abstract: The invention relates to a glazing unit comprising a substrate coated with a variable light scattering system switching between a transparent state and a translucent state comprising a scattering layer able to scatter the incident light along scattering angles greater than the critical total internal reflection angle at the interface between the substrate and the air and at least one pair of elements absorbing visible light separated from one another at least by the scattering layer. The invention also relates to the use of said glazing unit as a projection or back-projection screen.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A transparent sheet includes a texture in relief on a first of its main faces, such that, if n is the refractive index of the material including the texture, Pm is the mean slope in degrees of the textured face and Y(q) is the percentage of the textured surface with a slope greater than q/(n?1) in degrees, then the two cumulative conditions exist: Y(q)>3%+f(q) %*Pm*(n?1) and Y(q)>10%, with f(q)=24?(3*q) and q=2 or 3.

Abstract: The present invention relates to a laser device for annealing coatings deposited on large-width substrates, said device being formed from a plurality of laser modules that may be juxtaposed without particular limitation, wherein the laser modules generate elementary laser lines that combine with one another in the length direction to form a single laser line, each elementary line having an overlap in the length direction with one or two adjacent elementary laser lines; and at least two adjacent elementary laser lines have an offset with respect to one another in the width direction, said offset being smaller than half the sum of the widths of said at least two adjacent elementary laser lines; the overlap of said at least two adjacent elementary laser lines is such that, in the absence of offset, the power-per-unit-length profile of the single laser line has a local maximum level with the zone of overlap.