FR3031066A1 - LUMINOUS GLASS ASSEMBLY. - Google Patents

Abstract

The present invention relates to a glazed light assembly (200) comprising a laminated glazing unit comprising a first glazing unit (1) a lamination interlayer and a second glazing unit, with a first light source (4), coupled to the first glazing unit for emitting to the instant t0 to λ1, and first light extraction means (5) and with a second light source (4 '), optically coupled to the second glazing, for emitting said t0 at λ3 distinct from λ1, and second means d light extraction (5 '). The glazed assembly also comprises two reflecting layers on the internal faces of two glazings, anti-radiation mixing means of the first and second extracted light sources (4, 4 ') at the level of the first extraction surface and at the level of the second extraction surface.

Description

The present invention relates to the field of light and more particularly relates to a luminous glass unit by guided light extraction in a glass. It is known to form a luminous glazing by illuminating a glass by the wafer with a light source such as a set of light-emitting diodes. The light thus injected is guided by total internal reflection inside this glass thanks to the refractive index contrast with the surrounding materials. This light is then extracted using means that are conventionally a diffusing layer. Naturally, the diodes can be controlled to provide via the scattering pattern a continuous or flashing light zone or changing color.

The Applicant proposes to widen the range of available light glazings based on a lightguide light by the wafer by making possible the simultaneous vision of a first light zone of a first color visible only from the first side of the glazing and d a second light zone of a second distinct color visible only on the other side of the glazing.

For this purpose, the subject of the invention is a luminous glazed unit, preferably for an access door between first and second spaces, comprising: a laminated glazing unit comprising: a first glazing unit (transparent, preferably clear and even extraclear) preferably of mineral glass and even hardened (bare or already coated), of refractive index n1, preferably of less than 1.6 at 550 nm (better in the whole of the visible spectrum), and even less than 1.55 or even still less than or equal to 1.53 at 550 nm (better in the entire visible spectrum), preferably from 1.5 to 1.53, with main faces called internal and external faces and a first slice, - a first interlayer lamination, first polymeric material preferably thermoplastic or thermoset, especially transparent and which is of refractive index n3 or opaque (at least on a so-called separating zone detailed later), - a second glazing (tra nsparent, clear, extraclair, even dipped), preferably mineral glass, refractive index n2 preferably less than 1.6 to 550nm (better in the entire visible spectrum), and even less than 1.55 to 550nm (better in the entire visible spectrum) 3031066 2 or even less than or equal to 1.53 at 550nm (better in the entire visible spectrum), preferably 1.5 to 1.53, with faces the main bonding surface and the outer face, the bonding face being opposite the inner face, and a wafer, said second wafer (aligned or offset from the first wafer towards the outside of the glass unit, leaving a strip peripheral of the sticking surface protruding from the first wafer, or on a edge of the laminated glazing opposed to the first wafer), - a first light source (visible), preferably a set of light-emitting diodes (on a first aligned PCB support or in a row, 10 in bar (s)) or an optical extracting fiber with a primary source of light (diode (s)), optically coupled to the first glazing preferably by the first wafer or even by one of the faces at the periphery of the first wafer (in particular with a housing of the diodes), the first glazing guiding the light emitted by the first light source, the first source of light controlled statically or (preferably) dynamically to emit (preferably in the green for signaling) to the instant tO a first main radiation at a first wavelength X1 (preferably green) and preferably switchable to emit (preferably in the red for signaling) at time t4t0 a second main radiation at a second wavelength X2 distinct from X1 (preferably distinct from X1 of at least 20nm, 40nm and even at least 80nm, X2 preferably from red), and possibly to transmit (in white, red or green, blue) at t34t0 and t34f a main radiation (decorative or functional) even still distinct from the first and / or second principal radiation, and preferably when the first material is transparent with a clue of refraction n3 and the diffusing internal face forming the first light extraction means, n3-n1 being, in absolute value, greater than 0.01 at the wavelengths of the first light source and better in all the visible spectrum 30 - first light extraction means (resulting from the guidance) associated with the inner face, comprising one or a plurality of first extraction patterns (preferably diffusing), defining a first extraction surface partially covering the inner face, the extracted light being visible on the external face side, the first extraction means being such that the light extracted at said tO is of a first color called Cl (C1 preferably in the green, corresponding to a passing state of an access gate, C1 of main radiation X'1 substantially equal to X1) and preferably to said t 'is a second color C2 said distinct from the first color Cl (C2 preferably in the red, corresponding to a stop for an access door, and / or C2 main radiation X'2 substantially equal to X2), in particular first light extraction means directly on the internal face, 5 in particular internal (rendered) diffusing face or diffusing layer, in particular white, preferably defined by a clarity L * of at least 50, directly on the internal face or in the first interlayer when the first material is transparent or on the first interlayer of lamination when the first material is transparent or opaque on the inner side, a first reflective layer (specular reflection, mirror, etc.), monolayer or multilayer, extending directly onto the entire first internal surface outside the first extraction surface, the first glazing with the first reflecting layer having a light reflection RL, measured on the side of the outer face, starting from at least 20%, better at least 50%, and even at least 60% and preferably a TL light transmission of less than or equal to 3% even at 1% or 0.5% measured on the inner side, - a second source of light, preferably a set of light-emitting diodes (on a second PCB support, aligned or in a row (s), in a bar (s)), preferably identical to the first light source), or even an optical fiber extracting with source primary light (diode (s)), optically coupled to the second glazing preferably by the second wafer or even one of the faces at the periphery of the second wafer (in particular with a housing of the diodes), the second glazing 25 guiding the light emitted p ar the second light source, and preferably when the first material is transparent refractive index n3 and the diffusing gluing face forming the second light extraction means, n3-n2 being, in absolute value, greater than 0 , 01 at the wavelengths of the second light source and better throughout the visible spectrum, the second light source being driven, statically or (preferably) dynamically to transmit to said t0 (preferably in red for signaling) a third main radiation at a wavelength X3 distinct from X1 (preferably distinct from X1 of at least 20 nm, at least 40 nm and even at least 80 nm, X3 preferably red) and preferably substantially equal to X2 and preferably to emit (preferably in green for signaling) at time t 'a fourth main radiation at a wavelength called X4 distinct from X3 (from distinct preference of X3 of at least 20 nm, 40 nm and even at least 80 nm, X4 preferably red), or even distinct from X2, and preferably substantially equal to X1, and especially to emit (in the white, the red or green, blue) at t34t0 and t34f a principal radiation (decorative or functional) even still distinct from the third and / or fourth (even of the first and / or second) main radiation, - second means of extraction of light (resulting from the guide) associated with the bonding face, comprising one or a plurality of second extraction patterns (preferably diffusing), defining a second extraction surface partially covering the bonding face, the light thus extracted being visible on the outer side, second light extraction means such that the light extracted at t0 is of a color called C3 distinct from C1 (C3 preferably in the red, corresponding to a stop for an access door, 15 of main radiation X'3 substantially equal to X3, distinct from X'l of at least 20 nm, 40 nm and even 80 nm, X'3 preferably of red), preferably substantially equal to C2 (X'3 substantially equal to X'2) and preferably said t 'of a color called C4 distinct from C3 (C4 preferably in green, corresponding to a passing state of an access gate, C4 main radiation X'4 substantially equal at X4, distinct from X'3 of at least 20nm, 40nm and even 80nm), or even distinct from C2, preferably substantially equal to Cl (X'4 substantially equal to X'1), in particular second extraction means of light directly on the bonding surface, in particular bonded (diffused) bonding face or diffusing layer, in particular white, preferably defined by a clarity L * of at least 50) directly on the bonding face, or even in the first transparent interlayer or on the first transparent or opaque laminate interlayer, each of the second or second my extraction patterns being offset from the first extraction pattern or patterns, each of the second extraction pattern or patterns being opposite the first reflective layer, and separated by a (minimum) distance D from the first surface of the extraction at least 0.8 cm better by at least 1 cm and even at least 2 cm and generally less than 10 cm - bonding side side, a second reflective layer (specular reflection, mirror etc.), monolayer or multilayer, extending (directly) over (preferably all) the bonding face outside the second extraction surface, the second glazing with the second reflecting layer present and a light reflection RL, measured from the side of the face 3031066 from at least 20%, and even at least 60% and preferably a light transmission TL less than or equal to 3% even at 1% or at 0.5% measured on the side of the bonding face , the first extra surface ction being opposite the second reflecting layer, anti-mixing means of the radiation of the first and second sources extracted at the level of the first extraction surface and at the level of the second extraction surface, which comprise masking means opaque materials arranged between the first and second reflective layers. The combination of reflective layers, opaque masking means and offset extraction surfaces guarantee the independence of the two particularly switchable lights to form the signaling of an access door: at the instant t0: access color, such as green, on the one side and waiting color, such as red, on the second side - at time t ': inversion of the signaling, stop color on the first side and 15 color on the second side . In another signage application, for a train compartment, one may have written "free" in green on one side and "reserved" in red on the other side or for a separation between a family space or a classic space we can have families of light with patterns for children (geometry, color 20 etc.) and classic side a softer light (and / or one or more sober light patterns) for example a warm white. In a partition application between two spaces (building, outside, in a vehicle including public transport ..), each space may have one or more luminous patterns of color, switching type (and shape) adapted and a 25 function adapted decorative or (more) functional (lighting). For example it can be a partition between two offices, between two rooms or living room and other space in a store; it may be partition wall space, including rays, for example totems or a fitting room.

On one side, the lighting can be decorative and on the other functional side. For a closet door or door-preferably bathroom mirror-mirror, the outer side light can be colored and white inner side. For each side (or space), the color can change depending on the time of day (or seasons) as the intensity. Source control (from each side) can be automatic and / or manual. On one side, the lighting can be dynamic and on the other side static. Each first extraction pattern is at a distance D of at least 0.8 cm preferably at least 1 cm and even at least 2 cm and preferably less than 10 cm from the nearest second extraction pattern, D which is large enough to avoid mixing X1 scattered rays from the first extraction surface and likely to directly meet the second extraction surface without being absorbed by the opaque masking means (particularly if two layers masking on the two reflecting layers) and symmetrically the mixture of X2 scattered rays from the second extraction surface and likely to directly meet the first extraction surface without being absorbed by the opaque means (especially if two layers of masking on the reflective layers). Preferably, D is the distance parallel to the laminated glazing, corresponding to the distance between the edge of a given first pattern projected orthogonally on the second glazing and the edge of the second closest pattern orthogonally projected onto the second glazing.

Of course, D can vary from one first pattern to another. A first pattern may be vertically and / or horizontally offset from the nearest second pattern. One can choose second patterns identical to the first patterns but offset vertically and / horizontally. For example, a second set of 20 vertically offset bands of a first set of bands. The first and / or second extraction patterns may be solid (solid pattern) or a set of discrete patterns giving (by far) the appearance of a solid light area. Preferably, the first extraction surface occupies at most 80% and even at most 50% or even at most 20% of the internal surface and / or the second extraction area occupies at most 80% and even at most 50%. % or even at most 20% of the bonding face. In a first embodiment of the invention, the first lamination interlayer is preferably transparent, the opaque masking means comprise (preferably consist of): - a first opaque masking layer (coating such as a paint, mineral and / or organic, mono or multilayer) covering and (preferably directly) on the first reflective layer opposite the inner face and preferably offset (absent) of the first extraction surface and even preferably present everywhere else on the first reflective layer - and a second opaque masking layer (coating such as a paint, inorganic and / or organic, mono or multilayer) covering and (preferably directly) on the second reflecting layer on the opposite side of the bonding face and preferably-shifted (absent) of the second extraction surface and preferably present everywhere else on the second reflective layer.

These opaque masking layers absorb (or even reflect): the rays refracted by the underlying reflecting layers, in particular having a non-zero TL but as small as possible for the efficiency of guiding and extraction, - certain rays diffused by the first extraction means to the second glazing thus preventing tO a reflection propagation between the reflective layers of the first radiation X1 until reaching a second extraction pattern (extraction dedicated to the third radiation X3 at t0) - and in the same way, certain rays diffused by the second extraction means 15 towards the first glazing thus preventing to a propagation by reflection (s) between the reflecting layers of the third radiation X3 until reaching a first extraction pattern (dedicated extraction at the first radiation X1 at t0). In this first mode, preferably, the first reflective layer 20 comprises (consists of) a first layer of silver, even more preferably silvering (forming a mirror), preferably directly on the internal face, preferably at least 30nm, 40nm and even at least 60nm and better still at least 90nm (and better still at most 120nm), and said RL being at least 60% even at least 85% or 90% (and even said TL being at most 2% and even at most 1% and even at most 0.5% or 0.05%) and the first opaque masking layer comprises (consists of) a paint ( mono or multilayer) - typically protection of the first silver layer by silvering, - (especially directly) on the first layer of silver (and preferably in contact with the first interlayer of lamination). The painting is typically more than 10pm.

And the second reflective layer (identical or similar to the first reflective layer) comprises (consists of) a silver layer, said second silver layer, even more preferably silvering (mirror) preferably directly on the bonding surface, preferably at least 30nm 40nm and even at least 60nm and more preferably at least 90nm (and more preferably at most 120nm), said RL being at least 60% even from less 85% or 90% (and even said TL being at most 2% or at most 1% and even at most 0.5% or 0.05%) and the second opaque masking layer (identical or similar to the first layer 3031066 8 opaque) comprises a paint (mono or multilayer) - typically protection of the second layer of silver by silvering - the second layer of silver (especially directly) on the second layer of silver ( and in contact with the first lamination interlayer). The painting is typically more than 10pm.

These reflective layers form a mirror creating a deep, squinting effect. At a remote distance, one has the impression that the glass unit is transparent. This first embodiment is simple because it does not complicate conventional lamination.

The masking layers are preferably deposited by a liquid route, preferably by silvering. For each glazing, silvering is preferred because it can be deposited full face and sandblasted or treated with acid The silver can be partially deposited: before or after sanding or acid targeted in uncoated areas or before or after a Deposition of a diffusing layer such as a paint (lacquer), enamel for example deposited by screen printing Alternatively, the first silver reflecting layer, in particular by silvering, may be deposited on the inner face and the first masking layer ( paint or other layer) on the face facing the first interlayer for lamination 20 for example by printing. And the second reflective layer of silver, in particular by silvering, can be deposited on the bonding face and the second masking layer (paint or other layer) on the face facing the first interlayer, for example by printing. that the first silver reflective layer, in particular silvered, is deposited on the inner face and the first masking layer on the first silver reflective layer. In this first mode, preferably the first and second reflective layers (mirror layer, silvering) are identical or similar and even masking layers (paint) are identical or similar.

Alternatively, the first lamination interlayer, in particular made of PVB, EVA or PU, may have a first internal-face face having a first masking layer and on the other side a second masking layer. In one embodiment of the invention, cumulative or alternative to the first, the opaque masking means comprise (consist of) an opaque element 35 (opposing the passage of light) preferably monolithic and single. It may be: an opaque film in the mass, in particular a tinted plastic, spaced from the first and second reflective layers between the first interlayer (chosen transparent) in contact with the first reflective layer and the first extraction surface and a second lamination interlayer (transparent) in contact with the second reflecting layer and the second extraction surface - an opaque layer such as a paint (lacquer) or enamel on an additional transparent substrate (thin film , in particular flexible plastic such as a (polyethylene terephthalate) said PET, or glass) between the first interlayer (selected transparent) in contact with the first reflective layer and the first extraction surface and a second spacer lamination (transparent) in contact with the second reflective layer and the second extraction surface - an opaque layer on the first interlayer of laminating chosen transparent as a paint (lacquer ..) opaque 15 For example we choose to insert a lacquered glass (less than 3mm) as the product Planilaque Evolution or Decolac of the applicant company laminated by the first insert interlayer (transparent or even opaque as a precaution) and a second lamination interlayer (transparent or even opaque as a precaution). With the second extraction unit or units being offset from the first extraction pattern or units, the opaque masking means (such as an opaque element) are at least opposite the separating zone (s). ) between the first (s) extraction pattern (s) and the second (s) extractive pattern (s) offset, - next to the first extraction surface (partially or preferably completely), and the second extraction surface (partially or preferably entirely) and in particular when the light sources are positioned on the same side of the laminated glazing. For example, it is possible to insert a so-called opaque (very absorbent or very reflective, at least TL as small as possible) lamination interlayer between two transparent lamination interleaves in the one or more separating zones and facing the first surface. extraction (partially or preferably entirely), and the second extraction surface and better in the attack zone. Preferably, to promote guidance, the opaque masking means (such as an opaque element) are also also between the (coupling) wafer and the edge 35 of the extraction patterns (first and second) closest to the slice (coupling), in an area called attack. Preferably this opaque element, such as a lamination interlayer, completely covers the surface of the laminated glazing by simplicity and for optimum efficiency. D is a safety distance, and could possibly be lowered to 0. It is preferred to maintain offset first and second extraction surfaces. Preferably, the masking means comprise (preferably consist of) the first laminating interlayer (which is opaque selected, highly absorbent or highly reflective), preferably in contact with the first reflecting layer and the first extraction surface and in contact with the second reflective layer and the second extraction surface, or alternatively comprise a second laminating interlayer (which is chosen opaque, highly absorbent or highly reflective) between the first transparent laminating interlayer and the bonding face. The first lamination interlayer (or the second) preferably covers (substantially) the entire lamination surface for simplicity and for optimum efficiency. D is a safety distance, and could possibly be lowered to 0. It is preferred to maintain offset first and second extraction surfaces.

In particular in this second embodiment, the first reflective layer preferably comprises a thin film stack comprising a possible thin film, in particular a dielectric film, for example an oxide and / or a metal or silicon nitride, a metallic thin film (optionally nitride) and a thin, especially dielectric, overcoat, for example a metal oxide or / or a metal or silicon nitride, said RL being at least 20% and even at least 50% or 60% and better with said TL not more than 10% and not more than 5%. And preferably the second reflective layer (identical or similar to the first reflective layer) comprises a stack of thin layers comprising a possible thin underlayer, especially dielectric, for example an oxide and / or a metal or silicon nitride, a layer thin metal (optionally nitrided) and a thin overcoat, especially dielectric, for example an oxide and / or a metal nitride or silicon, said RL being at least 20% and even at least 50% or 60 %% and even better with said TL of at most 10% and even at most 5%.

Preferably, for the first and / or second reflective layer, the thin metal layer (or the thin metallic layers) is deposited by physical vapor deposition, in particular by magnetron sputtering. Advantageously, the metal thin layer is chosen from a layer of aluminum, zinc, chromium, tin, nickel, niobium (in particular niobium nitride), or preferably stainless steel, or still silver or copper, for example metallic thin layer deposited by physical vapor deposition, in particular by magnetron sputtering or by evaporation.

In the present invention, the term "thin layer" is intended to mean a monolayer of submicron thickness, preferably of thickness less than 300 nm, even at 150 nm and better still less than or equal to 100 nm. Above the thin metallic layer (away from the front face) can be arranged (directly) a preferably mineral overcoat, especially dielectric, for example an oxide and / or a nitride and preferably a layer thin, for example deposited by physical vapor deposition, in particular by magnetron sputtering and even more preferably by the same deposition technique as the thin metal layer.

The first and / or second reflecting layer may in particular be a stack of thin layers: - preferably inorganic, - and / or preferably the number of thin layers is less than 5, or even less than or equal to 4 or even 3, And / or preferably with a total thickness of less than 300 nm, or even 200 nm and better still less than or equal to 150 nm. - Stackable stack (after deposition of the stack, heat treatment and preferably quenching). The first and / or second reflective layer may in particular be a stack of thin layers comprising in this order (away from the front face): a possible thin layer, in particular a dielectric layer, for example an oxide and / or a nitride, (directly) the thin metal layer 25 - and a thin overcoat, especially dielectric, for example an oxide and / or nitride, (directly) on the thin metal layer. The overlayer (mono or multilayer) and the possible undercoat (mono or multilayer) are used in particular to adjust the color, improve durability and transformability.

In one embodiment, the first and / or second reflecting layer is a thin film stack comprising a thin silica underlayer, a thin metal layer of chromium, in particular with a thickness greater than 8 nm, and a nitride overlay. silica and optionally another optionally titanium-based overcoat, especially of thickness less than 5 nm. The latter overcoat serves for mechanical durability and hardenability.

The first and / or second reflective layer using chromium is not altered by a humid atmosphere, for example a body of water, unlike silvering which requires the addition of opaque anti-corrosion paint. The first and / or second reflective layer using chromium also has scratch resistance comparable to pyrolized layers, and is resistant to cleaning, disinfection. The first and / or second reflective layer using chromium is quenchable (that is to say capable of undergoing thermal quenching). The thermal quenching can be performed on the first glass sheet before the deposition of this layer on the front face. The thermal quenching may also be performed on the first glazing already coated with the chromium layer on the front face (and optionally with an adjacent glass frit layer) or another hardenable metal thin layer. The first and / or second reflective layer using chromium can be obtained by magnetron sputtering. The metal layer stack chrome for example may be that used in the MIRASTAR® product sold by the company SAINT-GOBAIN GLASS. The first and / or second reflective layer using chromium is not necessarily completely opaque. The reflective layer using chromium 20 typically has a light reflection of the order of 60% and a light transmission of the order of 3%. In one embodiment, the first and / or second reflecting layer is a stack of thin layers comprising in this order (away from the front face): a thin underlayer selected from a layer of silicon nitride , titanium oxide (TiO2), tin oxide (5nO2), mixed oxide of zinc and tin (SnZnOx), silicon nitride and zirconium (SiZrNx), in particular with a thickness of preferably less than 150 nm, a thin metallic layer of niobium, or of niobium nitride, in particular with a thickness of at least 20 nm and preferably less than 100 nm, a thin overcoat, in particular with a thickness of at least 20 nm and preferably less than 100 nm, selected from a layer of silicon nitride, titanium oxide, tin oxide, mixed oxide of zinc and tin, silicon nitride and zirconium. Preferably the underlayer and the overlayer are identical.

Moreover, the first and / or second reflective layer, in particular deposited on the front face and / or the diffusing means in layer (s), in particular deposited on the front face, may be preferably essentially mineral, just as the first glass sheet.

Thus, preferably, the front face of the first glass sheet may be coated with the first and / or second reflective layer and the first glazing may be thermally tempered with the reflective layer, in particular with a mineral overcoat, in particular dielectric, for example an oxide and / or a nitride and preferably thin and optionally with one or more layers, preferably mineral (s), in particular enamel or glass frit, forming the diffusing means, on the first glazing and / or optionally a decorative layer, preferably essentially mineral, in particular enamel or glass frit, on the rear face. In one embodiment, the first and / or second reflecting layer 15 is a stack of thin layers comprising a thin metal layer of stainless steel, in particular with a thickness greater than or equal to 5 nm and less than 50 nm or even 20 nm, and a thin overcoat of titanium nitride in particular with a thickness greater than or equal to 5 nm and less than 150 nm, preferably between 20 and 30 nm, including these values.

The first extraction pattern or patterns are preferably identical to the second pattern (s) of extraction in the case of an access door and preferably vertically offset by the distance D (constant or variable). And the first and second light sources are preferably on the same side of the laminated glazing, in particular housed in a frame for attachment to a gantry.

The above-mentioned opaque masking means according to the invention may be black or gray (dark) or even white. Preferably opaque for the first opaque layer: - a transmission factor (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4, and even in all the visible) of at most 2% and even 30 of not more than 1% or 0.5% (including a TL of not more than 2% and not more than 1% or not more than 0.5% or not more than 0%, 05%) - and / or absorption (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4), and even throughout the visible range) of at least 80% and even at less 90%.

Preferably opaque for the first opaque layer is understood to mean an optical density of at least 2 and better still of at least 2.5 and even more preferably of 2.8 to 4.5 and in particular of 3 to 4. .

Opaque for the second opaque layer is preferably understood to mean: a transmission factor (at the main wavelengths of C3 and / or C4 and / or C1 and / or C4 and even in all the visible range); not more than 2% and not more than 1% or not more than 0.5% (including a TL of not more than 2% and not more than 1% or not more than 0.5% or not more than 0.05%) - and / or absorption (at the main wavelengths of C3 and / or C4 and / or C1 and / or C4 and even in all visible areas) of at least 80% and even at least 90%, or opaque for the second opaque layer is preferably understood to mean an optical density of at least 2 and better still of at least 2.5 and even 3 more preferably of 2.8 to 4. , 5 and in particular from 3 to 4. Preferably, opaque means for the opaque element, in particular the first (or second) laminating interlayer (or an additional polymeric film in particular): a transmission factor (for main wavelengths of Cl and / o u C2 and / or C3 and / or C4, and even in all the visible) of at most 2% and even 1% or 0.5% (in particular a TL of at most 2% and even at most 1 % or at most 0.5%) - and preferably absorption (at the main wavelengths of Cl 20 and / or C2 and / or C3 and / or C4), and even throughout the visible range). at least 80% and even at least 90%, or a RL of at least 50%. Preferably the first (or second) lamination interlayer (or an additional polymeric film, in particular) forming or forming part of the masking means. has a TL of at most 10%, better at most 2% and even at most 1% or at most 0.5% and even at most 0.1% or zero. As first lamination interlayer, it is possible to choose in particular a sheet of thermoplastic material made of ethylene vinyl acetate (EVA) or else of polyurethane (PU) or of polyvinyl butyral (PVB). Such a thermally crosslinkable (epoxy, PU) or ultraviolet (epoxy, acrylic resin) multi-component or single-component resin sheet is preferred. The first lamination interlayer is for example submillimetric, in one or more sheets at the assembly. The first interlayer for lamination is preferably chosen from EVA and PVB.

EVA has the advantage of adhering well to the usual protective paints of silver mirrors. The protective paint may be monolayer or multilayer.

In silver-plated silver mirrors, a tin treatment is often carried out after silvering, in order in part to promote the adhesion of the upper layers and, on the other hand, to potentially improve the resistance to the corrosion of silver. One or more protective layers, for example based on paints, are then deposited on the silver layer. For example, patent application FR2936340 describes a mirror comprising a protective coating combining two successive layers of paints of different types. These paints can be organic type or inorganic type, solvent or aqueous. Typically, the total thickness of this protective paint (multilayer here) 10 times dry is about 50pm. If the first lamination interlayer is preferably a PVB, in the case of a silver-silvered layer, the protective paint may be a lacquer. In order to optimize the adhesion between the lacquer layer and the polymer interlayer, the lacquer layer is preferably subjected to the action of a plasma, in particular by a treatment of the corona discharge type, before heat treatment. For the same purpose, it is also possible to deposit on the lacquer layer silanes, for example by spraying or scouring. These treatments make it possible to use lacquers whose adhesion with the polymer interlayer sheets is naturally weak. They nevertheless generate an additional cost and are therefore not preferred. As an example of a preferred lacquer, those described in the examples of the application WO2009 / 081077 can be used. In the case of first (respectively second) reflecting layer in the form of a stack of thin layers, EVA or PVB can be used interchangeably.

As an example of opaque PVB (white, black) forming or forming part of the masking means mention may be made of Solutia's Vanceva Polar White® (Saflex product), mainly absorbent, or Solutia's Vanceva® Absolute black, which is mainly absorbent, or even the Kuraray Trosifol Diamond White®, of Null TL, reflective.

As an example of EVA (white, black, etc.) forming or forming part of the masking means, mention may be made of an opal EVA such as Bridgestone's EV038® and Pujol's EVALAM color black® (ref LAEV200CO2). It is preferred that the first and second extraction means are respectively internal face side and bonding for better durability (resistance to soiling etc.) and avoid parasitic reflections. The inner face is diffusing in particular by sandblasting or acidizing or receives a diffusing layer including white as an enamel or paint).

3031066 16 And / or the bonding face is diffusing in particular by sandblasting or acidic or even receives a diffusing layer including white as an enamel or paint). The outer (or outer) face is preferably free (of coating, covering) except possibly other extraction means including temporary (sticker, erasable felt ...) preferably offset from the extraction means on the opposite side . The first and second light sources are preferably arranged on the same side of the laminated glazing (first and second slices are on the same side, laminated glazing edge) if the slice opposite the first and second slices is visible. This is the case for a subway access door with two leaves (glass units according to the invention) side by side and retractable for the passage of the user. The luminous glazed assembly may comprise, at the periphery of the first wafer and the second wafer, a profile, in particular at least partly metallic, protruding on the outer face preferably over a distance W between 1 cm 15 and 3 cm, enclosing or carrying the first light source and the second light source. The profile can thus be used to hide the vision of hot spots. The profile is not necessarily in optical contact with the outer face. The profile can be: glued, by glue or double-sided opaque, which will absorb the high-angle rays or is glued by adhesive or double-sided transparent, the high-angle rays are reflected on the reflector profile and go out further or are absorbed by the opaque (rendered surface) profile. Naturally, the first radiation has a given first spectral range. Naturally, the second radiation has a second spectral range given. The first (respectively second) main radiation according to the invention means the most intense radiation in the spectral range emitted at time t0 (respectively t ') by the first light source. And by third (respectively fourth) main radiation according to the invention is meant the most intense radiation in the spectral range emitted at time t0 (respectively t ') by the second light source. Preferably, the spectral range of the first radiation is narrow of at most 50 nm and is non-overlapping with the spectral range of the second equally narrow radiation or with an overlap of less than 50 nm for normalized intensities of less than 0.15, for example overlap between red and amber or between green and blue.

Preferably, the signaling colors currently used are searched. Thus: at t 0: the first source emits in the green with X1 in a range from 515nm to 535nm and preferably from a spectral width at mid-height of less than 50nnn (and the extracted light Cl is green defined by a first main extracted radiation at X1 'substantially equal to X1, for example distinct from at most 10nm or 5nm and preferably with a spectral width at mid-height of less than 30nm), the second source emits in the red with X3 in a ranging from 10 615nm to 635nm and preferably from a spectral width at mid-height of less than 30nm (and the extracted light C3 is red defined by a third main extracted radiation at X3 'substantially equal to X3, for example distinct from more than 10 nm or 5 nm and preferably with a spectral width at mid-height of less than 30 nm) or white 15 and the first source emits in the red with X 2 in a range from 615 nm to 635 nm and preferably from spectral width at m i-height of less than 30nm (and C2 extracted light is red defined by a second main extracted radiation at X1 'substantially equal to X1, for example distinct from at most 10nm or 5nm and preferably with a spectral width at mid height less than 30 nm) and preferably the second source emits in the green with X4 in a range from 515 nm to 535 nm and preferably with a spectral width at mid-height of less than 50 nm (and the extracted light C 4 is green defined) by a fourth main extracted radiation at X4 'substantially equal to 25 X4, for example distinct from at most 10 nm or 5 nm and preferably with a spectral width at mid-height of less than 30 nm) or alternatively the first source continues to emit in the red with X4 in a range from 615nm to 635nm and preferably spectral width at mid-height of less than 30nm (and the extracted light C4 is red defined by a fourth main extracted radiation at X4 'substantially equal to X1, for example distinct from at most 10 nm or 5 nm and preferably with a spectral width at mid-height of less than 30 nm). Another configuration is that for example at t3 each source emits in green or in white. It is also possible that one of the sources is off (35 configurations: red and off, green and off, white and off). There may be distinctly colored decorative areas. Advantageously, the first light source is a set of light-emitting diodes-preferably aligned-on a printed circuit board called the first PCB support (preferably a strip) and coupled to the first slice, and the second light source is a set of light-emitting diodes - preferably aligned - on a PCB said second PCB support and coupled to the second slice which is preferably aligned (or even shifted) of the first slice or aligned or even shifted from the opposite slice to the first slice. The first and second PCB supports are spaced, joined or in a common PCB support (first and second slices of the same side) for example glued with a thermal glue to a metal profile. The first (second) PCB support or the common support may be a resin composite (epoxy) reinforced with glass fiber (often called FR-4), metal (aluminum, copper, etc.). It is preferably millimeter thick (less than 10 mm preferably) or even at most 1 mm. Naturally, the glazed assembly can also operate in static mode, that is to say only propose the combination Cl and C3 (or Cl and C2 off state, or C3 and C4 off state). In this case, the first light source may even contain only first diodes at X1 and the second light source contain only third diodes at X3. At t0 the first source comprises a first diode which emits in the green with X1 in a range from 515nm to 535nm, and t 'the first source comprises a second diode which emits in the red with X2 in a range from 615nm to 635nm.

The response of the ear is better for the green than for the red and furthermore the glass (mineral or organic) absorbs more red than green. We can perceive a red too pale. Also, preferably, the electrical circuit of the first diode is adjusted (resistor (s) adapted (s) etc.) so that the flow Fl (or power) emitted by the first diode is less than 0.8, even lower equal to 0.7 or 0.6 times the flux F2 (or the power) emitted by the second diode. Preferably, it is the same for the second light source emitting in the red at tO then in the green at t '. In order to have a flux Fl less than that of F2, it is possible to adjust the luminous intensity of the red diode to be greater than that of the green diode and / or to have on the first PCB support a number of red diodes per unit of PCB support length greater than the number of green diodes per unit length of PCB support.

Preferably, it is the same for the second light source emitting in the red at tO then in the green at t '. For example, one can have on the first PCB support (respectively the second) n times the following sequence, n integer greater than or equal to 1: two red diodes / a green diode ... In the case of a common PCB support we can have: - for the first set of diodes n times the following sequence, n integer greater than or equal to 1: two red diodes / one green diode ... - for the second set of diodes n 'times the following sequence, n Integer greater than or equal to 1, preferably equal to n: two red diodes / one green diode ... Luminance at the normal side external side (respectively outer face) with green Cl (or C2 red) is preferably at least 80cd / m2 especially for access doors. Normal luminance on the outer face side (respectively the outer face) is preferably uniform at +/- 10 cd / m 2. At to, the luminance at the normal side external side with green Cl can be lower than the luminance at the normal side external side with C2 red side external side to account for the response of the gate, especially for the doors of access. The first and second light sources are preferably arranged on the same side of the laminated glazing (in particular if free opposite slice) and in particular hidden by a mounting profile of the glazed assembly which also even bear first and second light sources. The first light source is preferably a first set of light-emitting diodes - preferably aligned - on a printed circuit board 25, said first PCB support (preferably a strip) and coupled to the first wafer, in particular by being glued to the first wafer by an optical adhesive or a transparent double-sided adhesive or being spaced from the first slice of at most 5mm and even at most 2mm -by air (or vacuum). And the second light source is preferably a second set of light emitting diodes - preferably aligned - on a printed circuit board said second PCB support and coupled to the second wafer in particular by being glued to the second wafer by an optical glue or a transparent double-sided adhesive (less than 50 μm thick) when the diodes are with primary encapsulation or spaced from the second edge by at most 5mm and even at most 2mm - by a space, by air (or vacuum) - especially when the diodes are without primary encapsulation. The first and second PCB supports may be on a common PCB support if the first and second slices are on the same side and preferably 3031066 substantially aligned (for a distance of at most 5mm and even at most 2mm between diodes and first or second tranches). For top-emitting diodes (conventional diodes), the common PCB support may therefore be wide enough to carry first and second sets of diodes. The common support PCB (and diodes) can even be glued on the first and second slices of the laminated glazing by an optical adhesive or a transparent double-sided adhesive especially when the diodes are with a primary encapsulation. For side-emitting diodes, the common carrier carries the first one together on a first major face and the second on the opposite face. A metal PCB is preferred for heat dissipation. Alternatively PCBs are contiguous or spaced for example by a metal part. The laminated glazing comprises a so-called central slice between first and second slices (between internal face and bonding face). Especially if their radiation patterns are broad half emission angle at mid-height of at least 50 ° or even at least 60 ° for example) and even when the emitting faces are at a distance of slices of at most 5mm and even at most 2mm, the glass unit may comprise a so-called common partitioning preferably reflective as a metal piece (such as aluminum etc.) or piece with two reflective coatings (metal ..) on both sides other, or even opaque common partitioning between the first and second light sources (preferably diodes) arranged on the same side of the laminated glazing - thus first and second slices on the same side of the laminated glazing, (in particular without significant shift, more than 25 1 mm, of the first slice and the second slice), able to prevent all or part of the refraction of the light emitted by the first light source (diodes) to the central slice and / or the second slice. reed and preventing all or part of the refraction of the light emitted by the second light source (diodes) to the central slice and / or the first slice.

The first and / or second PCB support or a PCB support said common PCB support forming the first and second PCB supports has for example a main face facing the first and second slices and the first and / or second PCB support or the common PCB support carries the common partitioning.

Or the first light source and the second light source are arranged two distinct sides, in particular opposite sides of the laminated glazing unit (thus first and second slices of two distinct and particularly opposite sides of the laminated glazing). The light sources (diodes) are on separate sides (opposite or even adjacent) of the laminated glazing, a so-called first partition means preferably reflective (such as a metal part including aluminum etc.) or piece with two reflective coatings (metal etc.) on both sides or 5 first opaque partitioning, first partition capable of preventing all or part of the refraction of the light emitted by the first light source (diodes) to the central slice and / or the edge of the second glazing side of the first slice and is provided a so-called second means partitioning, preferably reflective (like a metal part including aluminum minium etc) or piece with two reflective coatings (metal etc) on either side or even second opaque partition, able to prevent all or part of the refraction of the light emitted by the second light source (diodes) to the slice central and / or the slice of the first glazing listed second slice. The first (respectively second) partitioning preferably reflects or even absorbs (all or part, at least the majority) of the most lateral rays - for example emitting in the green of the first source (respectively second) unguided in the first slice (respectively second) which could be guided via the central slice and be extracted by the second (respectively first) extraction means - for example doomed to extract red - and / or more likely the more extreme ones that could be guided in the second glazing (respectively first) and be extracted by the second (respectively first) extraction means. The common partitioning preferably reflects or absorbs (all or part, at least the majority) - the most lateral radii - for example emitting in the green - of the first unguided source in the first slice that could be guided in the slice central and be extracted by the second extraction means-for example doomed to extract red-, and / or more likely the more extreme ones that could be guided in the second glazing and be extracted by the second extraction means - - Lateral radii - for example emitting in the red - of the second source (diodes) unguided in the second slice that could be guided in the central slice and be extracted by the first extraction means - for example dedicated to extract from the green- and / or 35 more likely the more extreme ones that could be guided in the first glazing and be extracted by the first means of ex traction - for example doomed to extract green.

According to the invention, the common partitioning is preferably a reflective piece, in particular a metallic part, or with a reflective coating, in particular a metallic coating or even an opaque coating on the first source side (diodes), (substantially) parallel to the plane of the first glazing, and a reflective coating, in particular a metallic coating. even opaque side second source (diodes), (substantially) parallel to the plane of the second glazing, It is preferred that the common partitioning or the first partition (respectively the second partition), does not exceed the first portion (respectively the second) or exceeds less than 1mm.

The common partitioning (respectively the first and / or second partitioning) is preferably of thickness less than or equal to the thickness between the inner face and the bonding face or the central slab thickness. The common partitioning (respectively the first and / or the second partitioning) comprises a piece (support coating (s) preferably) preferably against or spaced from the so-called central portion of at most 1 mm and even at most 0.5mm. Preferably the common partitioning and the central slice there is no glue or other means of attachment. The common partitioning as a piece (strip) with reflective coating (s) 20 or even opaque (s) or a reflective piece (metal, aluminum etc.) can be fixed (glued) or in a notch of a PCB support common facing the slice of the laminated glazing especially when the first and second sources are top-emitting diodes or another part (part of a profile for example mounting facing the central slice).

The common partitioning may comprise a part with reflective or even opaque coatings or a reflective piece (metal, aluminum etc.) or even opaque, preferably projecting with respect to the first light source (top-emitting diodes) and the second source (top-emitting diodes) to the first and second slices.

Also preferably, the first set of light emitting diodes and the second set of light emitting diodes are for example arranged on the same side of the laminated glazing and top emission (top emission in English), the first and second slices being on the same side , and a PCB support said common PCB support, forms the first and second PCB supports and has a main face 35 opposite the first and second slices (and the central slice) and carries the partitioning preferably reflective (metal as a part) aluminum) or opaque, or piece with two reflective or even opaque coatings, preferably protruding from the first and second set of light-emitting diodes towards the first and second slices. The common PCB support (and the diodes) can even be glued to the first and second slices of the laminated glazing by an optical adhesive or a transparent double-sided adhesive, especially when the diodes are with primary encapsulation. The first and second PCB supports may also be on a common support if the first and second slices are on the same side and preferably substantially aligned (and better with a distance of at most 5 mm and even at most 10 mm between diodes and first or second installment). In one embodiment, the first light source comprises a set of first light-emitting diodes on a printed circuit board called the first PCB support and the first diodes are coupled to the first wafer, in that the second light source comprises a set of second light-emitting diodes 15 on a printed circuit board said second PCB support, and in that the second diodes are coupled to the second wafer, the first set of light-emitting diodes and the second set of light-emitting diodes are arranged on the same side of the laminated glazing and With side emission, the first and second glazing forming a laminated glazing comprising a so-called central slice between the first and second slices, each of the first and second PCB supports or a common PCB support forming first and second PCB supports has a main face perpendicular to the first and second t ranches and in that the luminous glazed unit carries a so-called common partitioning, partitioning preferably reflective piece including metal or with two reflective coatings, partitioning preventing all or part of the refraction of the light emitted by the first set of diodes to the slice between the inner face and the outer face of the laminated glazing and preventing all or part of the refraction of the light emitted by the second set of diodes to the wafer between bonding face and external face of the laminated glazing, possibly comprising common partitioning comprising first and second PCB supports or common PCB support. It is therefore possible to provide a common partitioning between the first and second sets of diodes arranged on the same side of the laminated glazing (in particular without any noticeable shift, by more than 1 mm, of the first wafer and the second wafer) which is: reflective or with reflective coating (s) reported (fixed by any means) on a profile (possibly mounting the glazed assembly or profiled attachment of the first light source to the first portion, fastening section within the interior volume defined by the mounting profile) or reported on the common support PCB or one of the first or second separate PCB supports, - or a reflective portion or with a reflective coating (s) 5 of a profile (assembly of the glazed or profiled assembly for fixing the first light source to the first slice, fastening profile within the interior volume defined by the profile of e mounting) for example E-section section or double C or even F or even T turned at 90 ° - or if the diodes are side-emitting, the (s) first and second PCB support 10 each have a main face perpendicular to the first and second reflective or reflective coating slices (diffuse reflection most often), for example first and second PCB supports contiguous to their rear face or on a metal spacer or common PCB support (slice opposite the central portion 15) - - or if the diodes are side emission, the (s) first and second PCB support each have a main face perpendicular to the first and second wafers, for example first and second PCB supports each on an arm of a mounting profile. U, the base of which carries the common partitioning, The first light source may comprise (better consists of) a set of first electroluminescent diodes on a said first PCB support and the first diodes are coupled to the first wafer and have first collimation means, and the second light source comprises (better consists of) a set of second light emitting diodes on a card printed circuit board said second PCB support, and the second diodes are coupled to the second wafer and comprise second collimation means. Preferably the majority and better all the diodes of the first and second light sources have such a narrow emission diagram. The collimation is individual or even common to several diodes of each source (green diodes, red diodes, or even green diodes and Of course, as many X1-emitting diodes and X2-emitting diodes are needed as necessary, and their distribution (number, spacing) is adjusted to extend along the wafer in the first extraction surface. . We can choose to alternate X1 and X2 or not. Other diodes (emitting in blue, or white) can be added to provide new colors of light or functionality and it is also preferred to choose their narrow emission pattern. When selecting an extractor optical fiber for each primary source, narrow emission diagrams can also be chosen.

Preferably the first source (each diode) is of extension (width of the emitting face) WO less than the thickness of the first glazing typically WO of at most 5 mm and the first source (each diode) substantially centered with respect to the first tranche. The distance d1 to the first slice of the first source 4 (each diode) is from 1 to 5 mm better from 1 to 3 mm.

Preferably the second source (each diode) is of extension (width of the emitting face) VV'0 less than the thickness of the second glazing typically VV'0 of at most 5mm and the second source (each diode) substantially centered in relation to the second tranche. The distance from l to the second slice of the first source 4 (each diode) is 1 to 5 mm better from 1 to 3 mm.

For preference is chosen the edge of the second source farthest from the bonding face. The slice opposite to the first slice can be polished (and straight) or diffusing. The slice opposite to the second slice can be polished (and straight) or diffusing.

However, the glazed assembly in particular can comprise: a third source of light identical to the first light source and opposite, synchronized with the first source, driven (preferably) dynamically, on the edge opposite the first slice especially if the first extraction surface has a characteristic dimension along the axis of propagation of light of at least 450 mm (away from the first source) and preferably comprises a fourth light source identical to the second source of light and opposite, synchronized with the second source preferably driven dynamically, on the wafer 30 opposite to the second wafer, especially if the second extraction surface has a characteristic dimension along the light propagation axis from to minus 450mm (away from the second source). In the latter case, like the first source, the third source is preferably concealed by a preferably metallic (or rigid plastic, wood) and / or U-section mounting profile and, where appropriate as the second source, the fourth source is hidden by a mounting profile for example metal (or 3031066 26 plastic or wood and / or U section. In particular, the glass unit comprises a mounting frame for example a metal or plastic section (rigid), polyvinyl chloride PVC, or wood) and / or U-section and light sources are in the interior volume between the mounting frame 5 and the slices on the two vertical uprights fixed to the frame or fixed to the glazing by the slice (by a fixing profile for example). In the latter case, the third source can be hidden by a polymeric joint (black, dark, etc.), for example elastomer (an ethylene-propylene-diene monomer EPDM, etc.), especially if in the mounting configuration two glass units are provided ( wings) spaced and opening laterally (sliding etc) .. This seal does not interfere with the guidance, it is not generally not in optical contact and is preferably less than 3cm width on the first glazing for example for more comfort if the leaves fall back too fast (on the pedestrian). A mounting profile of the glass unit (with a bearing, block, etc.) can be a U-shaped unit (base facing the edge of the glass unit and on the one side and the other two lateral wings on the outer and outer faces). ) or in E with the central branch of the remote E (spaced) of the glass unit (laminated glazing) of less than 1 mm or even extending in a groove between the first and second glazing. It can be metallic and / or plastic (PVC, rigid) and / or wood. It may be metallic (preferred for heat dissipation if it carries the light sources including PCB via thermal glue, etc.). The base may be spaced preferably at most 3cm and even at most 1cm from the first wafer (and the second wafer). A profile for fixing the first (and / or second) light source to the first (and / or second) wafer may be a rectangular base (strip) or a T-section, or U (base facing the wafer). of the glazed assembly and on both sides of the side wings for example on the outer and outer faces) or in E with the central branch of the E distant (spaced) from the glazed assembly (of the laminated glazing) of less than 1mm or even extending in a groove between the first and second glazing. It may be metallic (preferred for heat dissipation if it carries light sources including PCB via thermal glue, etc.) and / or plastic. The fastening profile is preferably: - within the mounting profile of the glazed assembly, spaced or fixed on it, - or is confused with the mounting profile.

If not the first (second) PCB support (preferably metal) with the first (second) set of diodes can be attached to the first (second) wafer without the use of an additional fixation profile, an optical glue or a ribbon 3031066 double-sided transparent adhesive. In particular, in a configuration where the first and second light sources are on opposite sides, the second glazing (preferably of identical or similar size of the first glazing) protrudes from the first slice 5 forming a first protruding zone and preferably the first glazing protrudes from the second wafer forming a second protruding zone and the first light source (diodes on PCB support) on a first support (metal, U-shaped or L-shaped or strip ..) which is linked to the first zone protruding and / or in the first protruding zone and not exceeding the second wafer and preferably the second light source (diodes on PCB support) is on a second support (metal, U-shaped or L-shaped or bar-shaped ... ), which is related to the second overlying area and / or is in the second overhanging area and not exceeding the first wafer. The first glazing may comprise: - a peripheral recess (local, on a fraction of the length of the first slice, lateral or longitudinal) - or preferably the second glazing protrudes from the first slice, forming a first protruding zone, - and the first light source (preferably a set of diodes) on a first carrier, such as a first PCB (diode) printed circuit board, which is (with the first source) in the peripheral recess or preferably the first zone protruding, and does not exceed the second and even the plane of the outer face. And preferably the first source support (PCB) is: - fixed ((directly) or via a base) to the bonding face in the first protruding area or is in the peripheral recess - and / or in a groove between the inner face and the bonding surface, especially if the first light source (diodes) with side emission, and / or still attached to the first wafer by an optical adhesive or a transparent double-sided adhesive.

The second glazing may protrude from the first slice by shifting with the first glazing, preferably being of the same size or the like so that on the opposite side the first glazing protrudes from the second slice by shifting with the second glazing forming a second protruding zone. . The second light source (preferably a set of diodes) on a second support, such as a second PCB (diode) printed circuit board, in the second protruding zone, does not protrude from the first slice of the glazing and even of the plane of the external face.

And preferably the second source support (PCB) is: - fixed ((directly) or via a base) to the inner face in the second protruding zone (or is in the peripheral recess) - and / or in a the groove between the inner face and the bonding face, in particular 5 if the second light source (diodes) with side emission, and / or still attached to the second wafer by an optical adhesive or a transparent double-sided adhesive. We can prefer a first support PCB (respectively second PCB support) metal for heat dissipation or is fixed from the back to a metal base preferably not exceeding the second portion (respectively first slice) and even the plane of the outer face (respectively outer face). This base can be a bar, section L or U. Typically, it hides hot spots preferably W width at least 1cm and preferably at most 5cm and better 3.5cm.

In addition, for economy and for extraction efficiency if the border of the glass unit is to be concealed (mounting profile, attachment etc.) on the width W between 1cm and 3cm, by the periphery of the first slice a profile, preferably metal, protruding on the outer and outer faces, the first extraction patterns (diffusing, white or frosted) may be spaced from the first slice of at least the distance W (zone width of hot spots). The extraction surfaces can be of various shapes and sizes. The first extraction surface may comprise a single pattern of preferably diffusing for example solid, closed and even hollowed out or as a ring. The diffusing extraction patterns are for example geometrical: straight or curved strip, concentric circles, L.sub.1, etc. The patterns are identical or distinct, parallel to each other or not, with a distance between them identical or not. For the extraction of light, diffusion means are preferably used, formed either by a surface treatment of sandblasting type glass, acid attack, enamel or diffusing paste deposit, or by paint. According to one characteristic, the first (and / or second) extraction means are a white diffusing layer, in particular an enamel or a paint, having a clarity L * of at least 50. The color is defined in known manner by the parameters L *, a * and b * and is measured by a spectrocolorimeter. The optical density of a diffusing layer (enamel, paint, ink, etc.), in particular white, for the first and / or second extraction means may be less than 2.5 to 2, even less than 1.5, or even less than 1.

The diffusing layer, in particular enamel, may be a continuous layer on the surface, with a width of less than 200 mm, even 100 mm and even more preferably less than or equal to 50 mm, or be discontinuous and formed of a set of patterns. purposes.

The diffusing layer is preferably white, defined by a clarity L * of at least 50. Preferably, the inorganic pigment is chosen so that it has a white coloring. This pigment is in particular TiO2 titanium oxide. Advantageously, this white mineral pigment has a clarity L * as defined in the CIE Lab chromatic representation model (1931) which varies from 65 to 85, measured on the first glazing. Clarity L * can be measured under the conditions of the CIE Recommendation (1931) using an illuminant D65, an observer at 10 °, in SCE mode (specular component excluded) diffuse 8 ° (CM 600 Minolta). In a preferred embodiment, the diffusing layer (all or part of the extraction means) consists of particles agglomerated in a binder, said particles having a mean diameter of between 0.3 and 2 microns, said binder being in a proportion between 10 and 40% by volume and the particles forming aggregates whose size is between 0.5 and 5 microns. This preferred diffusing layer is particularly described in the application W00190787.

The particles may be selected from semi-transparent particles and preferably inorganic particles such as oxides, nitrides, carbides. The particles will preferably be chosen from oxides of silica, alumina, zirconia, titanium, cerium, or a mixture of at least two of these oxides. According to one characteristic, the enamel has the following composition: - between 20 and 60% by weight of SiO 2, - 10 to 45% by weight of refractory pigments, in particular of TiO 2, in particular of micron size, preferably not more than 20% by weight of alumina and or zinc oxide. The TiO2 pigments make the enamel sufficiently opaque (to visualize the enamel in the off state) and lower the TL. Examples of enamel extraction composition may be the enamel under the name Ferro 194011 marketed by the company FERRO, the reference AF5000 marketed by the company JM, the reference 35 VV30-244-1 marketed by Pemco are very white with a gloss greater than 20 and have a low light transmittance of less than 40%. Preferably it is a plurality of patterns and preferably diffusing (preferably 3031066 by a discontinuous diffusing layer). The first extraction means can be as already seen a set of diffusing patterns qualified as a network diffusing particularly for a desired large size light zone as uniform as possible.

Preferably, the first (second) glazing coated with the first (second) diffusing extraction means, in particular enamel, has a light transmission of less than 45% or even 40% or even 35% on the outer (outer) side. The first extraction means, in particular enamel, extend, for example, over the whole of one face of the glass, in a discontinuous manner or according to geometric shapes that are sparse with curved and / or straight lines. The extraction means are for example fractal geometry. The first patterns, identical or distinct, for example, are intaglio, graphic, letter character (with diacritic sign), numeral, alphanumeric, punctuation, symbol, arranged in a frame and / or in a strip). The first extraction surface may be straight or curved contour, may be geometric (rectangular) may be smaller than the first glazing width and height or length (according to the first slice) less than the height or length of the first glazing.

Preferably, the first glazing (like the second glazing) is of rectangular type and of width perpendicular to the ground once mounted. As a light source, it is possible to choose an extracting optical fiber, with a lateral emitter face (coupled to a primary light source which is typically a diode). For example, 3M optical fiber, referred to as 3M Tm Precision Lighting Elements, is used. For the first light source, light-emitting diodes aligned on a first printed circuit board PCB are preferably used, preferably in a bar which may be narrower than the glass unit and even the first glazing unit.

The diodes may be (pre) encapsulated, i.e. comprising a semiconductor chip and an envelope, for example epoxy resin or PMMA, encapsulating the chip. The diodes may comprise or even preferably be simple semiconductor chips for example of width WO of the order of one hundred pm or 1 to 35 mm. The width of each diode of the first source is preferably less than the thickness of the first glazing. The width of each diode of the second source is preferably less than the thickness of the second glazing.

The diodes may optionally comprise a protective envelope (temporary or not) to protect the chip during handling or to improve the compatibility between the materials of the chip and other materials. Each diode of the first source (of the second source) may be chosen in particular from at least one of the following light-emitting diodes: a side-emitting diode, that is to say parallel to the (faces of) electrical contacts , with a side emitting side with respect to the first (second) PCB support, - a diode whose main direction of emission is perpendicular or oblique with respect to the emitting face of the chip. The diodes preferably have a Gaussian (type) spectrum. The emission diagram of a classically Lambertian diode with a half emission angle of 60 °. Preferably the distance between the chips (or collimating means if present) and the first coupling wafer (respectively the second coupling wafer) is less than or equal to 5 mm and even 2 mm. The light extracted from the first extraction patterns may flash, in addition to changing color by means of controlling the first light source, for example a set of diodes emitting red, green, alternately, and preferably also white (alternating red, green and white). If it is an access door with ticket, pass or means of identification, in case of invalidity or non-recognition, to the first source can go from green to red and even blink on a time given (less than 10 s), for example from 1s to 5s, and become green again (the second source remaining red).

Preferably the first glazing, tempered mineral glass, is from 4 to 6.5 mm thick, the second glazing, tempered mineral glass, is from 4 to 6.5 mm in thickness, in particular the same. When the first (respectively second) extraction means are in enamel baking to form the enamel can be followed by I (unique) quenching operation.

The first (second) glazing may be any type of flat glass, (possibly curved by the bending processes known to those skilled in the art, when it comes to coating curved surfaces). These are monolithic glasses, that is to say composed of a single sheet of mineral glass, which can be produced by the "float" method making it possible to obtain a perfectly flat and smooth sheet, or by means of drawing or rolling processes. By way of examples of glass materials, mention may be made of float glass (or float glass) of conventional soda-lime composition, optionally hardened or tempered by a thermal or chemical route, an aluminum or sodium borosilicate or any other composition. The glass of the first and second glazings can be clear, extra-clear, with a very low content of iron oxide (s). These are, for example, glasses marketed in the "DIAMANT" range by SAINT-GOBAIN GLASS. For the first and second glazing, it is possible to choose a glazing made of silicosodocalcic glass, in particular extraclear glass, may have: - a transmission of the light radiation greater than or equal to 91% or even greater than or equal to 92% or even 93% or 94% at 550 nm or preferably over the entire visible range, and / or a reflection of the light radiation of less than or equal to 7%, even less than or equal to 4%, at 550 nm or preferably over the entire visible range. Each optically coupled slice may be shaped, especially straight and polished. The glass may have been heat-treated, at a temperature greater than or equal to 450 ° C, preferably greater than or equal to 600 ° C, in particular is even a tempered glass, hardened bending. The thickness of the first glazing is preferably between 2 and 19 mm, preferably between 4 and 10 mm, more particularly between 5 and 9 mm. The thickness of the second glazing is preferably between 2 and 19 mm, preferably between 4 and 10 mm, more particularly between 5 and 9 mm. We can prefer equal thicknesses for the two glasses. For the first (respectively second) inorganic glass pane, n1 (n2) is typically 1.50 to 1.53. In static operation, the first and / or second extraction surface is of a given color in the on state (light on). In dynamic operation, the first and / or second extraction surface is of a given color in the on state (light on) and the intensity may vary, or it may flash. In dynamic and switchable operation, the color in the state can be further changed. The invention is particularly applicable to signaling, and preferably to pedestrian access doors and / or even vehicle incorporating a first luminous glazed assembly as described above and even a second glazed assembly as described above (with surface areas). identical or separate extraction of the first set), first and second sets spaced a few mm and between two carriers. After installation, the first (and second) luminous glazed unit can be an access door (communication): - between the outside and a building, - between two areas of a building, in a room exhibition and / or restricted or paying access 5 - within a public transport station (metro, train), - between two external zones (external access to a tramway, a park, in particular an amusement park, an outdoor cinema, in a toll zone) - indoor or outdoor of a land vehicle (train ..), aquatic (boat) or air.

Preferably, each side is controlled, preferably in a common manner, switched at the same time. The access door may be in one or two (or more) identical luminous glazing units with identical or complementary one-way lighting: - the first glazed unit or each glass unit in the form of a sliding door, in rails, - the or each glazed assembly (ventail) movable in translation or around an axis of rotation. Of course the opening of the door (the mobility of the glass unit) can preferably be conditioned (by the use of an identification means, a ticket). The access door may include means for receiving a ticket, reading a ticket and operating the door leaf (s) to allow passage. The door has a general meaning is not necessarily placed on the ground, via a horizontal amount for example. It can be spaced from the ground (without a low post and / or high horizontal) and fixed laterally to a bearing (block fixed or placed on the ground). The ground is the land or soil of a part of a vehicle (boat , train etc). The door can also be in a frame attached to an adjacent masonry. Classical luminous landmarks (green arrow, red cross ...) can be kept or removed in the racks. The first and second extraction surfaces are more easily identifiable especially for characters with reduced vision. The invention applies more widely to form signaling and / or light decorations (or even functional lighting) of distinct colors at a given moment on two distinct sides of the glass unit, each signage or decor being switchable. independently preferably automatically or manually by the user (ambient light etc.).

The luminous glazed unit according to the invention can be between a first accessible space (with a pedestrian or vehicle traffic) and second accessible space (with a pedestrian or vehicle traffic). More broadly, the luminous glazed unit according to the invention can be a partition, in particular between two zones of a building or a land, sea or air vehicle or between two outer zones, a balustrade, a step or even a floor slab upstairs (eg light path to go to an emergency exit) or a closet door (cabinet), bathroom furniture, a totem.

The mounting profile of the luminous glazed assembly according to the invention (or of fixing the first source and / or the second source) may be a U or E with the central branch of the E spaced apart from the laminated assembly less than 1 mm or even extending in a groove between the first and second glazings. Naturally, there may be on the first glazing a plurality of extraction patterns, in particular in horizontal or vertical strips, preferably spaced at least 2 cm, 5 cm, even at least 10 cm. Naturally, there may be on the second glazing a plurality of second extraction patterns, in horizontal or vertical strips spaced at least 2 cm, 5 cm, even at least 10 cm.

The details and advantageous features of the invention will now be apparent from the following nonlimiting examples, with the aid of the figures: FIG. 1 shows access portals with double one-way signaling in a metro station - the following figures 1a and 1b show another example of light areas on each side of a leaf and the arrangement of the first and second light sources. FIGS. 2, 2 ', 3, 4 and 5 are schematic (sometimes partial) views in section of luminous glazed assemblies in several embodiments of the invention, FIGS. 6a and 6b show another example. bright areas on each side of a glazed assembly in interior application. The figures are not to scale.

EXAMPLES FIG. 1 shows a series of four access gantries 1000 in a metro station between the ticket office hall 1001 and the rowing space 1002 3031066 35 (schematized by rails) each with dual independent light signals (single vision side of the hall / rowing side) and dynamically (by means of piloting undescribed, conventional light sources). The means for reading a ticket or a pass are not shown and are conventional as the means triggering the opening of the leaves 100. Three access porticoes each comprise between two carriers 70 for example parallelepiped and metallic, two leaves 100 of rectangular type (length in the vertical, width of less than 450mm preferably) spaced a few cm, the side edges 15, 16 here having a radius of curvature 10 away from the holder 70. The side slices 15 , 16 and the slice 14 opposite the bearing are free, straight, polished or diffusing. The fourth gantry (the rightmost) has a single leaf 100 connected to a single bearing (possibly against a glazed elevator wall, a sliding outlet door, etc.). Each leaf 100 comprises a laminated glazing unit comprising a first preferably tempered mineral glazing (planar or curved and of any possible general shape) with a first slice, main faces called inner face and outer face 12, a first interlayer of lamination, a second mineral glazing (planar or curved and of any possible general shape, identical to the first glazing) with a second slice and principal faces called bonding face and outer face 12 '. The first and second slices (in the bearing 70) are on the same side of the laminated glazing slices aligned or shifted by less than 1mm. At time t0, the first and third gantries each comprise, on the right-hand side of the hallway 70, a green signaling arrow s1 oriented towards its leaves 100 and each have two green luminous surfaces 50 opposite the hall, in two first strips here horizontal. 50 partially covering the first glazing which comprises mirror areas 17 outside the light surfaces via a first reflecting layer (mirror) on the internal face. If the ticket or the pass is invalid, the green surfaces 50 can become red and even flash on a short time (less than 10 s) for example 1s to 5s and become green again.

The second gantry 100 (from the left) has on the right-hand door 70 on the hall 1001 a red signaling arrow s2 and has two red luminous surfaces 50 on the hall side, in two horizontal strips 50 partially covering the second glazing which have mirror areas 17 outside the light surfaces via a second reflective layer (mirror) on the bonding surface. On the other side (not visible), at time t0, the first and third porticoes each comprise on the left-hand carrier 70 on the 1002 side a red arrow 3031066 36 signaling and each have two red light surfaces ream side, in two horizontal strips 50 'on the second glazing vertically offset from the first horizontal strips (so as not to face each other), the second glazing comprising mirror areas 17 outside the light surfaces via a second reflecting layer (mirror) facing the bonding . On the other side, at time t0, the second gantry comprises on the left-hand carrier on the rowing side 1002 a green signaling arrow oriented towards its leaves which each have two green luminous surfaces side reamed in two horizontal bands on the first glazing vertically offset horizontal bands 10 opposite (not to face each other), the first glazing having mirror areas outside these two light surfaces via a reflective layer (mirror) on the inner face. Each pattern diffusing on the internal face and the gluing face and adjacent to the reflecting layers makes it possible to extract red or green light on the outer or outer side of the light resulting from radiation emitted by the first and second light sources and guided (the two set of diodes per leaf or optical fibers extracting) hidden light sources in the carriers 70, the first light source in optical coupling with the first wafer, the second light source in optical coupling with the second wafer.

The illuminated surfaces may be of any shape and extent for signage and / or decor. A luminous surface may comprise a fine pattern such as an arrow or be closed and hollow (geometric outline, etc.).

The following figures 1a, 1b show another example of light zones on the leaves and the arrangement of the first and second light sources in the case of the access gantry. The figure shows a front view of a leaf 100a hall side and Figure 1b shows in front view this wing side ream.

30 Hall side, we observe in the high zone (in mounted position) three horizontal and rectangular first solid strips 5a, for example 1cm wide and 20cm long spaced for example 5 cm apart from each other. On the row side, in this high zone are also observed three identical horizontal parallel bands 50'a and rectangular strips (of the same size and shape), for example of width 1cm and length 20cm, with the first three strips each vertically offset from each other. first three bands, for example 2cm.

3031066 37 Hall side, there is observed in the central area a first set of characters 5b such as a LOGO, for example of 10cm in length and 4cm in height. On the row side, a second set of characters 5'b is also observed in this high zone, such as a LOGO identical to the first set of characters 5b such as a LOGO vertically offset from the first set of characters 5b, for example 2cm. Hall side, there are observed in the low zone (in mounted position) two solid horizontal and rectangular strips 5c, for example 1 cm wide and 20cm long spaced for example 5 cm apart. Reamed side also observed in this high zone two solid horizontal strips and rectangular 5c identical (same size and same shape) each vertically offset two strips 5c for example 2cm. In Figures 1a and 1b the light areas of the opposite side of the leaf are shown in dotted lines although they are not visible.

As in FIG. 1, leaf 100a is a laminated glazing unit. The first glazing is on the hall side, an array of diodes 4 on a PCB support 41 in the form of a strip is optically coupled to the first wafer 13. At t0 the diodes 4 emit in the green and t 'in the red (or white or other color, blue for any other application). The second glazing is reamed, an array of diodes 4 'on a PCB support 41' in the form of a strip is optically coupled to the second wafer 13. At t0 the diodes 4 'emit in the red and at t' in green (or white or other color, blue for any other application). FIG. 2 shows in greater detail a partial sectional view of a glazed unit 200 with a double one-way light zone in a second embodiment comprising a laminated glazing unit comprising: a first glazing unit 1, here of rectangular shape (by example length following the vertical of 780mm, width for example 250mm), plan or alternatively curved (tempered), clear silicosodocalcic glass or extraclair 30 hardened (for example about 6mm including the glass called Planilux of the Applicant, tempered or still the Diamond glass of the Applicant), of refractive index n1 of about 1.52 to 550nm, TL of at least 90%, with a first main face 11 called internal face, a second main face 12 called face external, a first portion 13 which is vertical in the mounted position, - a first interlayer laminating 6 thermoplastic material here transparent preferably EVA, for example submillimeter, in a 3031066 3 8 sheet of 0.38 mm, even clear transparency, of refractive index n3 such that n3-n1, in absolute value, is preferably greater than 0.01 in the visible spectrum (here n3 equal to about 1.49) or alternatively stained (or opaque) - a second glazing 1 ', mineral glass, identical to the first glazing, with 5 a main bonding face 11' lamination intermediate side 6, a so-called outer opposite face 12 ', a second wafer 13 , of refractive index n2 of about 1.52 to 550 nm, of TL of at least 90%, with n3 such that n3-n2 in absolute value, is preferably greater than 0.01 in the visible spectrum.

The glazed assembly 200 further comprises: a first light source 4, in this case a first set of red and green light-emitting diodes 4 aligned on a printed circuit board, said common PCB support 410, source optically coupled to the first wafer 13 , the first glazing 1 guiding the light emitted by the diodes preferably spaced apart by at most 1 mm from the first wafer 13, preferably centered on the first wafer and of width less than the thickness of the first glazing 1, by for example, each diode with a width VVO of 4 mm or less, - first light extraction means 5, on the inner face 11, 20 having a first extraction pattern (or a plurality of first extraction patterns) defining a first extraction surface 50, partially covering the inner face, the extracted light being visible on the outer side, first extraction means such that the light extracted to said tO is of a first said color C1 and preferably said t 'is a second color C2 distinct from Cl, - inner side side, a first reflecting layer 2, extending on the inner face outside the first extraction surface the first glazing 1 with the first reflecting layer 2 having a light reflection RL, measured on the side of the outer face 12, of at least 20% and even at least 60% and preferably a lower TL light transmission or equal to 3% or even 1% measured on the side of the inner face 11 - a second light source 4 ', optically coupled to the second glazing by the second wafer 13', second glazing thus guiding the light emitted by the second source light source, second source of light controlled in static or dynamic manner, for emitting at said tO a third main radiation at a wavelength known as X3 distinct from X1 and preferably substantially equal to X2 e t preferably, to emit at said instant t 'a fourth main radiation at a wavelength called X4, preferably distinct from X3, - second light extraction means 5' on the bonding surface 5 11 ', comprising a second extraction pattern (or a plurality of second extraction patterns) defining a second extraction surface 50 'partially covering the bonding face, the light thus extracted being visible on the outside face side, second light extraction means such that the light thus extracted at t0 is of a color called C3 distinct from C1, and preferably said t 'is of a color called C4 distinct from C2, each of the second extraction units being offset from the first extraction patterns, each of the second or second extraction patterns being opposite the first reflecting layer 2, and separated by a distance D of the first extraction surface by at least 0.8cm better 1cm - Side gluing side, a second reflective layer 2 ', extending over the entire bonding face 11' outside the second extraction surface 50 ', the second glazing 1' with the second reflecting layer 2 'has a light reflection, measured on the side of the outer face 11 ', of at least 20% and a light transmission TL less than or equal to 3% measured on the side of the bonding face 11', the first extraction surface being in look at the second reflective layer. More specifically, the first reflective layer 2 comprises a first layer of silver, silvering layer to form a mirror, preferably at least 40 nm and even at least 60 nm and even from less 90nm (and better still not more than 120nm) especially around 100nm, and said RL being at least 60% and even at least 85% or 90% and TL being at most 1% and even at least not more than 0,5%. The first reflective layer 2 is coated with a protective paint 3 forming a first opaque masking layer, absent from the first extraction surface 50. The second reflecting layer 2 comprises a silver layer 2 ' silvering in order to form a mirror, preferably of at least 40 nm and even at least 60 nm and even at least 90 nm (and better still at most 120 nm) especially around 100 nm and said RL being at least 90% and TL being at most 1% and even at most 0.5% or 0.05%. The second reflective layer 2 'is coated with a protective paint forming a second opaque masking layer 3', absent from the second extraction surface 50 '.

These masking layers 3, 3 'are in fact anti-radiation mixing means of the first and second sources extracted at the level of the first extraction surface 50 and at the level of the second extraction surface 50' avoiding guidance. of spokes between first and second reflective surfaces.

The distance D avoids that backscattered rays of an extraction surface propagate (directly) to the other extraction surface. The first second light extraction means are one or sandblasted areas respectively of the inner face and the bonding face. Regarding the manufacture, the first (respectively second) glazing coated full face 10 silvering (with its protective paint) can be sandblasted for this purpose. To promote the extraction, it is preferred that n3-n1 (respectively n3-n2) be in absolute value distinct from 0. As alternative extraction means, mention may be made of a diffusing layer such as a white enamel, in particular with the majority of TiO 2 as the pigment. .

The thickness is typically between 40 and 60 μm, or a white paint. A paint formulation may be deposited according to the curtain process. The solvent is xylene or alternatively aqueous. The lacquer after drying comprises, for example, the following ingredients: a binder in the form of a polyurethane resin obtained by crosslinking, with a non-aromatic isocyanate, of hydroxylated acrylic resins resulting from the polymerization of an acrylic styrene; mineral materials (pigments and loads) up to 55% by mass. The first source 4 (each diode) is of extension (width of the emitting face) WO less than the thickness of the first glazing 1 typically WO of not more than 5 mm and the first source (each diode) substantially centered with respect to the first slice 13. The distance dl to the first slice 13 of the first source 4 (each diode) is 1 to 5 mm better from 1 to 3 mm. The second source (each diode) is of extension (width of the transmitting face) VV'0 less than the thickness of the second glazing 1 'typically VV'0 of at most 5mm and the second source (each diode) substantially centered in relation to the second tranche. The distance from l to the second slice 13 'of the first source 4 (each diode) is from 1 to 5 mm better from 1 to 3 mm. The first light source 4 is dynamically driven to emit at time t0 via a first series of first diodes 4 a first main radiation 35 at a first wavelength called X1 and at time t4t0 via a second series of first diodes 4 'a second main radiation at a second wavelength called X2 distinct from X1.

The second light source 4 'is dynamically controlled to emit at time t0 via a third series of second diodes 4' a third main radiation at a third wavelength, called X3, distinct from X1 and at the instant T4t0 via a fourth series of second diodes 4 'a fourth main radiation at a fourth wavelength X4 distinct from Xl. At t0: - the first series emits in the green with X1 in a range from 515nm to 535nm and spectral width at mid-height of less than 50nm (and the extracted light Cl is green defined by a first main extracted radiation 10 to X1 'substantially equal to X1, distinct by at most 10nm or 5nm and with a spectral width at mid-height of less than 30nm), - the third series emits in the red with X3 in a range from 615nm to 635nm and from spectral width at mid-height of less than 30 nm (and the extracted light C3 is red defined by a third main extracted radiation at X3 'substantially equal to X3, distinct from at most 10 nm or 5 nm and with a spectral width at half height less than 30nm) or white. At t ': - the second series emits in the red with X2 in a range from 20 615nm to 635nm and spectral width at mid-height of less than 30nm (and the extracted light C2 is red defined by a second principal extracted radiation at X1 'substantially equal to X1, distinct by at most 10nm or 5nm and with a spectral width at mid-height of less than 30nm) - and the fourth series emits in green with X4 in a range from 515nm to 535nm and of spectral width at mid-height of less than 50 nm (and the extracted light C4 is green defined by a fourth main extracted radiation at X4 'substantially equal to X4, distinct from at most 10 nm or 5 nm and with a spectral width at mid height less than 30nm). Alternatively, the first source continues to emit in the red with X4 in a range from 615nm to 635nm and spectral width at mid-height of less than 30nm (and light extracted C4 is red defined by a fourth main extracted radiation at X4 'substantially equal to X1, for example distinct from at most 10 nm or 5 nm and preferably with a spectral width at mid-height of less than 30 nm).

Another configuration is that for example at t3 each source 4, 4 'emits in green or in white. It is also possible that one of the sources is off 3031066 42 (hence following configurations: red and off state, green and off state, white and off state). The PCB support is in bar, rectangular not exceeding the edge of the glass unit (of width less than or equal to the thickness of the slice of the glass unit and of length less than or equal to the length of the slice of 5 the glass unit). Each set of diodes 4, 4 'alternately comprises LEDs "red" and "green". The maximum spacing between the diodes of the same color is chosen at most 20mm. The diodes of the first source (respectively of the second source) each have a given main direction of emission substantially parallel to the first portion (respectively to the second portion), for example less than 5 °. The normal luminance of a pattern 5, 5 'measured on the outer side 12 or outer side 12' with green or red light is about 100 cd / m 2 (+/- 10 cd / m 2). Luminance at normal is uniform at (+/- 10 cd / m2). The electrical circuit of each "green" diode emitting in the green is adjusted so that the flux F1 emitted by this "green" diode is less than 0.8, even at 0.5 times the flux F2 emitted by a "red" diode. emitting in the red. For example, for each set of diodes on the common PCB support, one can have repetitions of the following sequence: two red diodes / one green diode ...

The PCB support 410 is in the interior volume - divided into two chambers 74, 74 '- of a mounting section 7 of U section, preferably metal (aluminum, lacquered steel) or plastic variant (PVC etc.) or further wood having: - a base 72 facing the edge of the glazed assembly 200 (including the first and second wafers 13,13 ', the central wafer with the first lamination interlayer 6), metallic base bearing here the support PCB 410 and serving for example heat sink, - on either side of the base 72 of the first and second wings 71, 73 respectively extending on outer face 12 and outer face 12 'for example over a width W of 3cm. The common PCB support is bonded by a thermal glue 18 to the metal base 72 of the U-shaped section 7. The face 12 'is a free surface of the luminous pane, is visible or even accessible (to the touch). The face 12 is a free surface of the luminous glazing, is visible or even accessible (to the touch). The glazed assembly 200 could be assembled in an insulating glass or vacuum if really necessary (double glazing or triple glazing).

The first and second slices 13, 13 'are straight, polished. Opposite slices are straight, polished or even diffusing. The side and opposite edges may be coated with an opaque paint so as not to ignite. It is also possible to place a polymeric seal on these opposed edges, for example for greater comfort if the leaves fold too fast on the pedestrian or to mask the light. Other diodes can be added to the opposite wafer (not shown here), particularly in the case of a glazing unit with a large first extraction surface and / or with several spaced centimeter units. We can then place a metal frame or polymeric seal housing these other diodes on this opposite edge.

The diodes 4, 4 'are top-emitting. The diodes 4, 4' are conventional without collimation optics -and even without (pre) encapsulation-having an emission pattern with large angles for example lambertian emission (for example with angle at mid-height of 120 °). As diodes it is thus possible to choose the NSSM124T sold by the company NICHIA with a width of 3 mm centered on the coupling wafer 13, 13 '. It is preferable to avoid any color mixing due to a lateral leakage of light from the first diodes 4 of the internal volume 74 to the second glazing 1 '(radii not coupled to the first glazing 1), in particular refraction in the first spacer 6 and / or especially in the second slice 13 ', and / or lateral leakage of light from the second diodes 4' of the internal volume 74 'to the first glazing unit 1 (radii not coupled to the second glazing unit 1), in particular refraction in the first insert 6 and / or especially in the first section 13.

Also, a reflective piece 75 of aluminum is fixed on the common PCB support 410 by an adhesive 18 '(or a notch) against the central slice 13' of the laminated glazing to partition the light of each source 4, 4 'and reflect it. . This part is preferably of thickness less than or equal to the thickness between the inner face and the bonding surface (central slice 13 "), for example less than 0.8 mm and even 0.5 mm. less than 1 mm on the first and second slices 13, 13 ', between the piece 75 and the central slice there is preferably no glue or any other fastening means, in a variant not shown, the support 7 is a section section E 35 rather than a U with a central branch 75 of E metal partitioning and reflecting the light of the first light source and the second light source, for example against or spaced less than 1mm from the The central section and this central branch 75 is of thickness less than or equal to the thickness between the inner face and the bonding face, for example less than 0.8 mm and even 0.5 mm. case each first and second The source is on a separate PCB attached to the base of the profile.

In a variant not shown, the assembly can be performed using a PVB interlayer film or Dupont SentryGlas®, in particular by activating the surfaces of the protective paints with the aid of an adhesion promoter. FIG. 2 'shows a partial cross-sectional view of a luminous glazed assembly 200' in a variant of the second embodiment. Only the differences from the second mode are described. The luminous glazed assembly 200 'differs as follows from the glazed assembly 200. The sources (diodes) 4' and 4 'are side-emitting, each with separate PCB support 41, 41' being contiguous (fixed to each other). other) by their rear face against 15 or as here fixed by an adhesive 18 for example conductive on a piece (metal) 75 spacer glued to the frame 7 by glue 18 for example conductive and against the central portion 13 ". PCB supports may participate or be sufficient to partition the lights of distinct colors (at t0, t0 'etc.) if they are opaque by nature in particular reflectors and of sufficient width (especially in abutment against their edge 13 or 13' 20 of the laminated glazing and Alternatively, the PCB supports are attached to the frame side portions 71, 73. Fig. 3 shows a partial sectional view of a luminous glazed assembly 300 in a third embodiment. compared to the second m The luminous glazed unit 300 differs as follows from the glazed assembly 200. The first source 4 (each diode) has collimation means 42 to reduce the emission angle sufficiently to avoid (or limit) any lateral leakage towards the second glazing 1 '. The second source 4 '(each diode) comprises collimation means 42' to reduce the emission angle sufficiently to avoid (or limit) any lateral leakage to the first glazing 1. For example, we go from an angle to mid-height from 120 ° to 60 °.

Fig. 4 shows a partial sectional view of a light glazed unit 400 in a fourth embodiment.

3031066 Only the differences from the second mode are described. The luminous glazed unit 400 differs as follows from the glazed assembly 200. First and second PCB supports 41, 41 'are on a common metal (aluminum) section 76, for example a strip of width less than or equal to 5 l. thickness of the slice of the glazed assembly, section T with a protruding portion 75 to partition the light sources 4,4 'and reflect the troublesome rays. Here, this profile 76 is not fixed on the mounting profile 7 of the glass unit for example to a bearing. Each of the diodes of the first source 4 (respectively of the second source 4 ') has a primary encapsulation 44, 44' and is glued to the first wafer 13 (respectively to the second wafer 13 ') by a transparent double-sided adhesive 45 , 45 'as a polyester support with double-sided acrylic glue as the product D9605 called the company NITTO for example not exceeding the edge of the glass assembly, outward.

It is also possible to remove the profile 76communal and have a section (type of bar of rectangular section or U, L) and glued for each source 4,4 '. Two profiles U or L may be spaced or contiguous or fixed between them and thus keep the partitioning. One can even have on sides of the opposite side of the glass unit two sections thus glued (sources on two opposite sides).

Figure 5 shows a sectional view of a light glazed assembly 500 in a fifth embodiment. Only the differences from the second mode are described. The luminous glazed unit 500 differs as follows from the glazed unit 200.

The first and second reflective layers 2, 2 'are no longer silvered mirrors with their protective paints but stacks of thin layers 2, 2'. The first laminating interlayer 6 'is an opaque PVB or EVA (highly reflective or highly absorbent, TL as low as possible), for example white or black, forming anti-radiation mixing means of the first and second sources extracted at the of the first extraction surface 50 and at the level of the second extraction surface 50 '(avoiding ray guidance between first and second reflective surfaces). D nonzero, and even at least 0.8 cm can be kept as a precaution.

On the other hand, the two light sources 4a, 4'a are reproduced, the common partition 75 '(facing the central slice 13 "a) all housed in a section 7a on the opposite slices 13a, 13'a. first and second slices 30.1310 13.13 'One could add another first extraction surface adjacent to the first extraction surface 50 and other second extraction surface adjacent to the second extraction surface 50'. first and second reflective layers 2, 2 ', here a chromium-based multilayer is chosen, such as the SGG MIRASTAR® product from SAINT GOBAIN GLASS, each reflective layer 2, 2' is deposited by magnetron sputtering. is a stack of thin layers comprising: - a thin sub-layer of silica, 30 nm thick, - a thin layer of chromium metal, 19 nm thick, - a nitride overlay silica, about 5 nm thickness, and another overcoat based on oxidized titanium, about 1 nm. The SGG MIRASTAR® product has a TL of 3% and a RL of 60%. Alternatively, the stack of thin layers of each reflecting layer 2, 2 'is for example the following hardenable stack: a thin sublayer of silicon nitride, a thin metal layer based on niobium, or niobium nitride, a thin overcoat of silicon nitride. For example, the layers of SAINT GOBAIN GLASS products ST108 or ST120 or STB120 are chosen, described in Tables 1 and 2 below. Layer Layer Layer Outer layer metal metallic layer Si3N4 Si3N4 Nb NbN Product Thickness Thickness Thickness Thickness (nm) (nm) (nm) ST 108 10 35 - 30 ST 120 10 - 25 30 STB 120 80 - 23 28 Table 1 Product TL RL in% in% ST 108 8 37.5 ST 120 20 27 STB 120 21.5 28.5 Table 2 3031066 47 Alternatively, the stack of thin layers of each reflecting layer 2, 2 'is for example: a thin metal layer of stainless steel, 5 to 15 nm, - a thin layer of silicon nitride, 20 to 30 nm.

For example, the layers of products SS108, SS114 and SS120 from SAINT GOBAIN GLASS described in Table 3 below are chosen. Product TL RL in% in% SS 108 7 42 SS 114 13 32 SS 120 18 24 Table 3 Alternatively a stack can be used with a metallic layer of aluminum or zinc or silver. Alternatively, silver layers are left with their protective layers. Of course the glazed assembly as described in the various embodiments mentioned above can also operate in static mode, that is to say only propose the combination Cl and C3 (or Cl and off state, or C3 and off state). In this case, the first light source may even contain only first diodes at X1 and the second light source contain only third diodes at X3. The glazed unit may also be suitable as a light partition (between two zones of a building or a land, sea or air vehicle or between two exterior zones), floor slab, step, balustrade, closet door, furniture unit. bathroom. Figures 6a and 6b show another example of light areas on each side of a glazed assembly 600 and in an interior application (in a building etc).

It is a totem (carried by a horizontal low upright 70, for example aluminum, U-section or E to form the common partitioning, housing the two sets of diodes for the two windows. the men's department and the women department in a clothing store or a department store (on land in a 3031066 48 shopping area in a maritime vehicle, railway etc.) If necessary we can add diodes (for both windows) housed in a high horizontal amount or alternatively the diodes (for the two glazings) can be alternately in the vertical amount of left and / or vertical of right.

The amount can be a frame, for example aluminum, and section U or E to form partitioning preferably common (if diodes on the same side), we can add diodes as needed. FIG. 6a shows in front view the first glazing (outer face side 12) of the glazed assembly 600 on the female spoke side and FIG. 6b shows in front view (outer side side 12 ') the male spoke side. On the women's side, we observe in the upper zone (in the mounted position) letters forming the word 'woman' 8a - in the desired language - (or alternatively a drawing or symbol of a woman) for example with a pattern area decorations 8b below (here series of diamonds).

These patterns 8a, 8b are permanent on the inner face (opposite to the outer face 12) for example by etching (sandblasting) of the first reflecting layer 'preferably mirror, by silvering with its protective paint. On the men's side, in the uppermost zone (in the mounted position) letters forming the word 'man' 8'a - in the desired language- (or alternatively a drawing or symbol of a man), for example with a pattern area 8'b below (here series of diamonds). These patterns 8'a, 8'b are permanent on the bonding face (opposite to the outer face 12 ') for example by etching (sandblasting) of the second reflecting layer, in particular mirror (silver) with its protective paint (forming 25 masking means). The female side patterns are offset from the male side patterns of D (variable) by at least 1cm. For example, the patterns 8a and 8'a are offset by D. The patterns 8b and 8'b are offset by D. It is possible to produce a laminated glazing of architecture similar to that of the laminated glazing unit described in FIG. 2 (by adjusting the positions of the first and second extraction surfaces) or FIGS. 3 to 6. At time t0 and even t ', the color of the patterns on the female side can be distinct from that on the men's side. On either side this color can be static or dynamic. Optionally, it is possible to add extraction patterns for men's and / or women's department promotions (or sales). For example women's side we add removable extraction means such as stickers or an erasable ink on the outer face 12, for example vertically and peripherally (to keep the mirror function) four symbols 8c to 8f (hat, dress , pants, coat) white or colored (agreeing with the colors of diodes coupled to the first glazing) associated with a percentage of reduction 81 to 84.

For example, on the male spoke side, removable extraction means such as stickers or an erasable ink are added to the outer face 12 ', for example vertically and peripherally (to keep the mirror function) four symbols 8'c to 8'f (tie, shirt, trousers, jacket) white or colored (agreeing with the colors of diodes coupled to the second glazing) associated with a percentage of 10 reduction 81 'to 84'. For a given radius the symbols and / or the associated percentages are not necessarily of the same color. From one radius to another, the symbols and / or the associated percentages are not necessarily of the same color or illuminated by the same color at a given time t0. 15

Claims (14)

REVENDICATIONS1. Luminous glazed assembly (100, 200, 200 ', 300, 400, 500, 600) comprising: - a laminated glazing unit comprising: - a first glazing unit (1) of refractive index n1, with main faces (12), called internal face (11) and outer face (12), and a first wafer (13), - a first lamination interlayer (6, 6 '), first polymeric material, - a second glazing (1'), index of refraction n2, with principal faces called bonding face (11 ') and outer face (12'), the bonding face being opposite the inner face, and a wafer (13 '), said second wafer, - a first light source (4), optically coupled to the first glazing preferably by the first wafer, first glazing thus guiding the light emitted by the first source, first piloted light source, static or dynamic, to emit at the instant t0 a first main radiation at a first wavelength called X1 and preferably switched able to emit at time t4t0 a second main radiation at a second wavelength called X2 distinct from X1, - first light extraction means (5, 5a to 5c, 8a, 8b), associated with the face internal member (11), comprising one or a plurality of first extraction patterns defining a first extraction surface (50, 50a to 50c) partially covering the inner face, the extracted light being visible on the outer side, first extraction means such that the light extracted at said T0 is of a first color called Cl and preferably said t 'is a second color called C2 distinct from C1, - on the inner side, a first reflecting layer (2), extending over the inner face (11) outside the first extraction surface, the first glazing (1) with the first reflecting layer (2) having a light reflection RL, measured on the side of the outer face (12), from minus 20% and preferably a transmissio n TL less than or equal to 3% measured on the side of the inner face (11) - a second light source (4 '), optically coupled to the second glazing preferably by the second wafer, second glazing thus guiding the light emitted by the second light source, a second source of light controlled statically or dynamically, for transmitting to said t0 a third main radiation at a wavelength called X3 distinct from X1 and preferably substantially equal to X2 and preferably for transmitting at said instant t 'a fourth main radiation at a wavelength X4, preferably distinct from X3, - second light extraction means (5', 5'a to 5'c, 8'a, 8 b) associated with the bonding face (11 '), comprising one or a plurality of second extraction patterns defining a second extraction surface (50') partially covering the bonding face, the light thus extracted being visible e outer side side (12 '), second light extraction means such that the light thus extracted at t0 is of a color called C3 distinct from Cl, and preferably said t' is a color called C4 distinct from C2, each or both of the second extraction patterns being offset from the first extraction pattern or patterns, each of the second extraction pattern or patterns being opposite to the first reflecting layer (2), and separated by a distance D of the first extraction surface of at least 0.8 cm, - bonding side side, a second reflecting layer (2 '), extending over the entire bonding surface (11') outside the second surface extraction, the second glazing (1 ') with the second reflecting layer (2') has a light reflection, measured on the side of the outer face (11 '), of at least 20% and preferably a light transmission TL less than or equal to 3% measured on the side of the bonding face (11 '), the first extraction surface being opposite the second reflecting layer, anti-mixing means of the radiation of the first and second extracted light sources (4, 4 ') at the level of the first extraction surface and at the level of the second extraction surface, which comprise opaque masking means (3, 3 ', 6) arranged between the first and the second reflecting layer (2, 2'). 2. Luminous glazed assembly (100, 200, 200 ', 300, 400, 600) according to claim 30, characterized in that the first interlayer lamination (6) is preferably transparent; the opaque masking means comprise: - a first opaque masking layer (3) covering and on the first reflecting layer opposite the inner face (11) and shifted from the first extraction surface 35 - and a second layer opaque masking (3 ') covering and on the second reflective layer opposite the bonding face (11') and offset from the second extraction surface. 3031066 52 3. Luminous glazed assembly (100, 200, 200 ', 300, 400, 600) according to the preceding claim in that the first reflective layer (2) comprises a first layer of silver, preferably silver, from less than 40 nm, and said RL being at least 60% and preferably said TL being at most 1% and in that the first opaque masking layer (3) comprises a paint, in particular for protecting the first layer silver, on the first layer of silver and in that the second reflective layer (2) comprises a layer of silver, said second layer of silver, preferably silvering, of at least 40 nm, said RL being at least 60% and preferably said TL being at most 1% and in that the second opaque masking layer comprises a paint, in particular of protection (3 ') of the second layer of silver, on the second layer of silver. 4. luminous glazed assembly (500) according to one of claims 1 to 3 characterized in that the masking means comprise the first lamination interlayer (6 ') or a second lamination interlayer between the first transparent lamination interlayer and the gluing face. 5. luminous glazed assembly (500) according to any one of the preceding claims characterized in that the first reflective layer (2), and even the second reflective layer, comprises a stack of thin layers 20 including a possible thin layer, in particular dielectric, for example an oxide and / or a metal or silicon nitride, a metallic thin layer preferably chosen from aluminum, zinc, chromium, tin, nickel, niobium, silver, copper , and a thin, particularly dielectric, overcoat, for example an oxide and / or a metal or silicon nitride, said RL being at least 20% and preferably the masking means comprise the first interlayer (6 ') . 6. Luminous glazed assembly (100, 200, 200 ', 300, 400, 500, 600) according to any one of the preceding claims characterized in that the first interlayer lamination (6) is an EVA or a PVB. 30 7. Luminous glazed assembly (100, 200, 200 ', 300, 400, 500) according to any one of the preceding claims, characterized in that: - at tO the first light source (4) emits in green with Xi in a range of 515 to 535 nm, the second light source (4 ') emits in the red with X3 in a range from 615nm to 635nm - preferably at t' the first light source emits in the red with X2 in a range of 615nm and 635nm and preferably the second light source emits in green with X4 in a range of 515 to 3031066 53 535nm. 8. Luminous glazed assembly (100, 200, 200 ', 300, 400, 500, 600) according to any preceding claim characterized in that tO the first light source (4) comprises a first light-emitting diode which emits 5 in the green with X1 in a range from 515 to 535nm, and t 'the first light source comprises a second light-emitting diode which emits in the red with X2 in a range from 615nm to 635nm, the electrical circuit of the first diode is adjusted so that the flux F1 emitted by the first diode is less than 0.8 times the flux F2 emitted by the second diode. 10 9. Luminous glazed assembly (100, 200, 200 ', 300, 400, 500, 600) according to any preceding claim characterized in that the laminated glazing comprising a so-called central slice (13 ") between the first and second slices (13, 13 '), and in that the glass unit comprises a means said partitioning common (75), preferably reflective, between the first light source (4) and the second light source (4') arranged on the same side of the laminated glazing, able to prevent all or part of the refraction of the light emitted by the first light source to the central slice and / or the second slice and preventing all or part of the refraction of the emitted light by the second light source at the central wafer and / or the first wafer, or in that the first light source and the second light source are arranged are two distinct, in particular opposite, sides of the glazing and the glazing laminate comprises means said first preferably reflective partition, able to prevent all or part of the refraction of the light emitted by the first light source to the central slice and / or the second slice and the laminated glazing comprises means said second partitioning, preferably reflective capable of preventing all or part of the refraction of the light emitted by the second light source to the central slice and / or the first slice. 10. Luminous glazed assembly (100, 200, 300, 400, 500, 600) according to one of the preceding claims characterized in that the first light source 30 (4) comprises a set of first light-emitting diodes on a circuit board printed said first PCB support (41) and the first diodes are coupled to the first wafer, in that the second light source (4 ') comprises a set of second light-emitting diodes on a printed circuit board said second PCB support (41 '), and in that the second diodes are coupled to the second wafer, the first set of light-emitting diodes and the second set of light-emitting diodes are arranged on the same side of the laminated and top-emission glazing, the first and second glazing forming a laminated glazing unit comprising a so-called central slice (13 ") between the first and second slices (13, 13 ') and the first and / or two I th PCB support (41) or a PCB support said common PCB support (410) forming the first and second PCB supports has a main face 5 facing the first and second slices and in that the first and / or second PCB support or the common PCB support carries a so-called common partitioning, partitioning preferably reflective piece including metal or with two reflective coatings, common partitioning preventing all or part of the refraction of the light emitted by the first set of diodes to the wafer between face internal and external face of the laminated glazing and preventing all or part of the refraction of the light emitted by the second set of diodes to the wafer between the bonding face and outer face of the laminated glazing, common partitioning preferably salient with respect to the first and second light emitting diode array in the direction of the first and second slices. 11. Luminous glazed assembly (200 ') according to one of the preceding claims characterized in that the first light source (4) comprises a set of first light-emitting diodes on a printed circuit board said first PCB support (41) and the first diodes are coupled to the first wafer, in that the second light source (4 ') comprises a set of second light-emitting diodes on a printed circuit board, said second PCB support (41'), and in that the second diodes are coupled to the second wafer, the first set of light-emitting diodes and the second set of light-emitting diodes are arranged on the same side of the laminated glazing and with lateral emission, the first and second glazing forming a laminated glazing unit comprising a so-called central wafer ( 13 ") between the first and second slices (13, 13 '), each of the first and second PCB supports or a support CB common forming first and second PCB supports has a main face perpendicular to the first and second slices and in that the luminous glazed assembly carries a so-called common partitioning, preferably partitioning which is a reflective piece (75), common partitioning preventing all or part of the refraction of the light emitted by the first set of diodes to the wafer between the inner face and the outer face of the laminated glazing and preventing all or part of the refraction of the light emitted by the second set of diodes to the wafer between bonding face and outer face of the laminated glazing, common partitioning optionally comprising first and second PCB supports or the common PCB support. 3031066 55 12. luminous glazed assembly (300) according to any one of the preceding claims characterized in that the first light source (4) comprises a set of first light-emitting diodes on a printed circuit board said first PCB support (41) and the first diodes are coupled to the first wafer and have first collimation means (42), and the second light source (4 ') has a set of second light-emitting diodes on a second PCB support circuit board (41'). ), and the second diodes are coupled to the second wafer and have second collimation means (42 '). 10 13. Access door (1000) incorporating the luminous glazed assembly (100, 200, 200 ', 300, 400, 500, 600) according to one of the preceding claims, especially between the outside and a building, between two areas of a building or a land, sea or air vehicle, within a transit station, between two outer zones. 15 14. Partition, in particular between two zones of a building or a land, sea or air vehicle or between two exterior zones, slab, step, balustrade, cupboard door, bathroom furniture, totem incorporating the whole illuminated glazing unit (200, 200 ', 300, 400, 500, 600) according to one of claims 1 to 12.