FR3017468A1 - LUMINOUS GLASS ASSEMBLY. - Google Patents

Abstract

The present invention relates to a glazed light assembly comprising a first glazing unit (1) with a first light source (4), coupled to the first glazing unit for emitting at time t0 to λ1 and for transmitting at time t '≠ t0 to λ2 distinct from λ1, first light extraction means (5) and first masking means (6) of the extracted light on the internal face side; in optical contact with the first glazing unit, a second glazing unit (1 ') with a second light source (4'), optically coupled to the second glazing, for emitting at said t0 at λ3 distinct from λ1, second light extraction means (5 ') and second masking means (6') of the gluing face side light; between the first masking means and the second extraction means, a first optical isolator (2), laminated by a first lamination interlayer (3); between the first masking means and the second extraction means, a second optical isolator (2, 2 '), merged with the first optical isolator or distinct and closer to the second extraction means, the second optical isolator (2, 2 ') is laminated to the second glazing by means of a second lamination interlayer (3').

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 signaling means which 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 invention firstly relates to a luminous glazed assembly, preferably for an access door between first and second spaces, comprising: a first glazing (transparent, clear, extraclear), preferably made of mineral glass and even quenched (bare or already coated), even organic (preferably rigid) refractive index n1 preferably less than 1.6 at 550nm (better in the entire 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 principal faces called internal and external faces and a first slice, - a first light source (visible), preferably a set of light-emitting diodes (on a first aligned PCB support, in bar (s)) or an optical fiber extractor with a primary source of light (diode (s)), optically coupled to the first glazing unit , by the first trench e or 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 in static or (preferably) in dynamics for transmitting (preferably in the green) at time t0 a first main radiation at a first wavelength called X1 (preferably green) and preferably switchable to emit (preferably in the red) to the instant t4t0 a second main radiation at a second wavelength called X2 distinct from X1 (preferably distinct from X1 of at least 20 nm, 40 nm and even at least 80 nm, X2 preferably from red), and possibly emit (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 main radiation, first light extraction means ière (resulting from the guide) associated with the first glazing unit comprising one or a plurality of first extraction patterns (preferably diffusing), delimiting a first extraction surface (occupying all or part of the internal face preferably outside a first zone of margin margin optical coupling with the first source, including occupying an area, such as a strip, the first slice to the opposite slice except preferably said first margin zone), the extracted light being visible on the outer side, the first means of extraction (in particular white diffusing layer, preferably defined by a brightness L * of at least 50) being such that the light extracted at said tO is of a first color called Cl (Cl preferably in green, corresponding to a passing state an access door, C1 of main radiation X'l substantially equal to X1) and preferably said t 'is a second color called C2 distinct from the first color C1 (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 which are preferably means diffusers on the side of the internal face (preferably on the internal face, or in a first laminating interlayer), and / or on the side of (preferably on) the external face and / or in the mass of the first glazing , extraction means optionally forming a concentrator of the light, - first masking means of the extracted light (first extraction means) on the inner side, arranged on the inner side, partially covering the inner face, selected from the one at least one of the following means (and their combination): - (preferably) opaque means (in the predominantly absorbing sense) in congruence (same shape, same size and in coincidence) with the first extraction means, - in particular with less absorbent at the main wavelengths of C1 and / or C2 (and / or C3 and / C4 defined later) - farther than the first means of extraction of the internal face and preferably on the first means of extraction, - reflective means (preferably specular) facing the first extraction means, and preferably which are (directly) on the first extraction means and further from the first glazing than the first extraction means, preferably in congruence with the first extraction means (with the first extraction units) or possibly laterally beyond the first extraction means (of the first extraction pattern or units) in particular of at most 2 mm and even less than 1 mm, especially covering the first extraction surface and around the first extraction surface of at most 2 mm and better still less than 1 mm), in optical contact with the first glazing, in particular separated by one or more layers. - or alternatively spaced from the first glazing-, a second glazing, (preferably inorganic or even organic (rigid) glass, transparent, clear, extraclair, even tempered), of refractive index preferably not less than 1, 6 to 550nm (better in the entire visible spectrum), and even less than 1.55 at 550nm (better in the visible spectrum as a whole) or even less than or equal to 1.53 at 550nm (better in the all of the visible spectrum), preferably from 1.5 to 1.53, with principal faces called bonding face and external face, the bonding face being opposite the internal face, and a wafer, said second wafer (aligned or shifted from the first slice outwardly of the glazed assembly, leaving a peripheral strip of the bonding surface protruding from the first slice or slice opposite to the first slice), - a second light source, preferably a set of electroluminescent diodes (su r a second PCB support, aligned in strips (s)), preferably identical to the first light source), or even an optical fiber extractor with primary source of light (diode (s)), optically coupled to the second glazing, by the second slice or even one of the faces at the periphery of the second slice (in particular with a housing of the diodes), the second glazing guiding the light emitted by the second light source, (second slice on the side of the first slice, aligned or shifted inwardly of the glazed assembly, or side opposite to the first wafer), the second light source being driven statically or (preferably) dynamically to transmit to said t0 (preferably in the red) a third main radiation at a wavelength known as X3 distinct from X1 (preferably distinct from X1 of at least 20 nm, 40 nm and even at least 80 nm, X3 preferably from red) and preferably substantially equal to X2 and preferably to emit (preferably in the green) at time t 'a fourth main radiation at a wavelength called X4 distinct from X3 (preferably distinct from 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 white, 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 light extraction means (resulting from the guide) associated with the second glazing, comprising one or a a plurality of second extraction patterns (preferably diffusing) delimiting a second extraction surface (occupying all or part of the bonding face, preferably out of the second margin area, optical coupling with the second source, nota the second portion of the second slice to the opposite slice except preferably said second margin zone), the light thus extracted being visible on the outer face side, second means of extracting light (in particular white diffusing layer, preferably defined by a clarity L * of at least 50) such that the light extracted at t0 is of a color called C3 distinct from Cl (C3, preferably in the red, corresponding to a stop for an access door, 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 to said t 'of a color called C4 distinct from C3 (C4 preferably in the green, corresponding to a passing state of an access gate, C4 main radiation X'4 substantially equal to X4 , distinct from X'3 of at least 20 nm, 40 nm and even 80 nm), see e distinct from C2, preferably substantially equal to Cl (X'4 substantially equal to X'1), - second means for masking the extracted light (second extraction means) side bonding side, arranged on the front side of bonding, partially covering the bonding face, chosen from at least one of the following means (and their combination): opaque means (in the mainly absorbing sense) in congruence with the second extraction means, in particular at least absorbing at the main wavelengths of C3 and / or C4 (and / or C1 and / or C2 as a function of the first opaque masking means), - preferably the first pair of opaque masking means / second opaque masking means is absorbing at least at the main wavelengths of C1, C3 and other possible colors C2, C4, etc. farther than the second extraction means of the bonding face and preferably (directly) on the second extraction means, means re bending (in the sense mainly reflective, preferably specular) opposite the second extraction means, and preferably which are (directly) on the second extraction means and further away from the second glazing than the second extraction means, means reflectors preferably in congruence with the second extraction means or possibly laterally beyond the second extraction means in particular at most 2 mm and better still less than 1 mm, in particular substantially covering the second extraction surface and around the second extraction area on at most 2mm and better less than 1mm). The glazed assembly further comprises between the first masking means and the second extraction means, where appropriate between the first masking means and the second masking means separate from the first masking means, an optical isolator (of continuous preference, flat or curved, in one piece), said first optical insulator, transparent, of refractive index n2 such that, at the wavelengths of the first (and better still of the second source if single insulator) light source (best of all visible spectrum) nl-n2 is at least 0.08 and even at least 0.2 and more preferably at least 0.3 (and better not-1 n2 is at least 0.08 and even at least 0.2 and more preferably at least 0.3, if single isolator) which is: - at least opposite the internal face between the first extraction units ( if several, or in the void of a hollow closed pattern), preferably covering the first extraction surface, and / or (preferably and) in looking at the internal face between the first coupling section and (the adjacent edge of) the first extraction surface, and preferably facing the internal face between the first extraction surface and the portion opposite to the first section, first optical isolator preferably substantially covering the inner face (except possibly a first zone called edge margin optical coupling with the first source and even other peripheral areas) - preferably if the first insulator is unique, at least with respect to the bonding face: between the second extraction units (if several, or in the void of a hollow closed pattern), preferably covering the second extraction surface and / or (preferably and) between the second slice and (the adjacent edge of) the second extraction surface, and preferably between the second extraction surface and the slice opposite the second slice, the first optical isolator of reference then substantially covering the bonding face (except possibly a second zone called edge margin optical coupling with the second source and even other peripheral areas). The first optical isolator, having first and second main surfaces, is laminated, by the first main surface, to the first glazing (with the internal side facing the first masking means and even preferably the first extraction means below). means of a first laminating interlayer, first transparent polymeric material, preferably thermoplastic or even thermoset, which is of refractive index n3 such that n3-n1 in absolute value is less than 0.05 and even less than 0.03 at the wavelengths of the first light source and better in the entire spectrum of the visible. In a variant, the first optical isolator is air. The glazed assembly further comprises between the first masking means and the second extraction means, where appropriate between the first masking means and the second masking means spaced apart from the first masking means, an optical isolator (of continuous and plane preference, in one piece), said second optical isolator, merged with the first optical isolator or distinct and closer to the second extraction means, transparent, of refractive index n2 such that, at the lengths of wave of the second light source (better of the entire visible spectrum) ne1-n'2 is at least 0.08 and even at least 0.2 and more preferably at least 0, 3 which is: - at least opposite the bonding face between the second extraction patterns (if several, or in the void of a hollow closed pattern), preferably covering the second extraction surface and / or (preferably and) between the second and (the adjacent edge of) the second extraction surface, and preferably between the second extraction surface and the wafer opposite the second wafer, second optical isolator preferably then substantially covering the bonding face (except possibly a second zone called margin margin optical coupling with the second source and even other peripheral areas).

The second optical isolator is laminated, (via the second surface of the first optical isolator when merged with), to the second glazing (thus on the bonding side and with the second masking means and even preferably the second extraction means) by means of a second laminate interlayer, a second transparent polymeric material (preferably thermoplastic or even thermoset, preferably the second material identical or similar to the first material), which is of refractive index n3 such that n'3-n 1, in absolute value, is less than 0.05 and even 0.03 at the wavelengths of the second light source (and better in the whole spectrum of the visible). The optical isolator or insulators combined with the masking means guarantee the independence of the two particularly switchable illuminations to form the signaling of an access door: at the instant t0: access color, such as green, of a first side and waiting color, such as red, the second side - at time t ': inversion of the signaling, stopping color of the first side and color of passage of the second side. In a decorative application, for example for a partition between two offices, each person can choose his decor color. In a signage application, for a train compartment, one may have written "free" in green on one side and "reserved" in red on the other side. A second optical isolator may be desired if the first optical isolator is more distant from the second glazing than from the first glazing unit and / or does not isolate (sufficiently) the rays coming from the second light source by its position or its extent. The first opaque masking means according to the invention may be black or gray (dark) or even white (typically by thickening of the first extraction means). The first opaque masking means may be as colored and thick enough to be opaque at all main wavelengths or with opacity at some of the major wavelengths. The first masking means (opaque or reflective) may be: on the first optical isolator, in particular a low-index film, on the inner side, on the first interlayer, preferably on the inner side, on the inner face, or on the first means, Extraction on the internal side It is preferred to put them as close as possible to the first extraction means. The second masking means can be cumulatively: on the second optical isolator, in particular the low index film, on the bonding side side, on the second interlayer, preferably face side bonding, - on the bonding face or on the second extraction means face side bonding.

It is preferred to put them closer to the second extraction means. Preferably, the first extraction means (in particular diffusing layer, preferably enamel or ink or paint) are on the internal face, the first masking means comprise an opaque layer (preferably enamel or ink or even paint), or even reflective , in congruence and (directly) on the first extraction means, the first glazing with the assembly having internal side side facing the first masking means: - absorption (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4), and even in all the visible range) by at least 80% and even at least 90%, - a transmission factor (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4, and even in all the visible range) of at most 2% and even 1% or 0.5% (in particular a TL of at most 2% and even 1% or 0.5% and / or 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 of 3 to 4.

Preferably, the second extraction means (in particular diffusing layer, preferably enamel or ink or paint) are on the bonding face, the second masking means comprise an opaque layer (preferably enamel, ink), or even reflective, in congruence and (directly) on the second extraction means, the assembly on the second glazing having bonding side side: - absorption (at the main wavelengths of C3 and / or C4 and / or C1 and / or C4 as a function of the first masking means) of at least 80% and even at least 90%; - a transmission factor (at the main wavelengths of C3 and / or C4 and / or C1 and / or C4 as a function of the first masking means) of at most 2% and even 1% or 0.5% (in particular a TL of at most 2% and even 1% or 0.5%) and / or a density at least 2 and preferably at least 2.5 and even 3 more preferably 2.8 to 4.5 and in particular 3 to 4. The first and / or two xth opaque masking means may be lined with a reflective layer, on its side facing the extraction means, for example a thin metal layer, it is sufficient that the assembly has the optical density, the transmission, the absorption above. Alternatively, the first masking means are (mainly) reflective and may be on the side of the inner face and the first extraction means on the side of the outer face. Preferably, the first masking means are (directly) on the first extraction means which are on the internal face. The first glazing with the first reflective masking means may have a transmission factor (at the main wavelengths of C1 and / or C2 and / or C3 and / or C4, even in all the visible) of at most 2% and not more than 1% or not more than 0.5% (including a TL of not more than 2%, even not more than 1%) and an LR of not less than 90%. TL and RL are measured on the inner side opposite the first reflecting means. Similarly, the second masking means are (mainly) reflective (like the first masking means) and may be on the side of the bonding face and the second extraction on the side of the outer face. Preferably, the second masking means are (directly) on the second extraction means which are on the bonding face. The second glazing with the second reflective masking means may have a transmittance (at the main wavelengths of C3 and / or C4 and / or C1 and / or C2 depending on the first masking means) of at most 2% and even not more than 1% or not more than 0.5% (including a TL of not more than 2%, even not more than 1%) and an LR of not less than 90%. TL and RL measured on the bonding face side opposite the second reflecting means. The first reflective masking means may be (directly) on and between the first patterns, thus a solid zone substantially encompassing the first extraction surface. The reflection is specular if these means are present between first extraction patterns (forming a full layer in the first extraction surface) and / or in the optical coupling zone. It is preferable first congruent reflective masking means and even (directly) on the first extraction means or not more than 2mm and even less than 1mm to: - preserve the overall transparency in the first extraction surface and in the coupling zone (before the extraction pattern closest to the first slice) - and / or preserving the total internal reflection guidance - especially with the aid of the first optical isolator - which allows a better extraction efficiency than the reflection specular. It is the same for the second masking means. Second reflective masking means congruent and even (directly) on the second extraction means or not exceeding more than 2 mm and even less than 1 mm are preferably preferred. The first (respectively second) means of reflective or opaque masking are not preferred. not in direct contact with the first (respectively second) optical isolator including porous layer. The first reflective masking means may be a coating (silvering, or a monolayer or thin multilayer with at least one functional metal layer such as a silver layer and / or aluminum and / or copper and / or gold) (directly) on the first extraction means or on the inner face (first extraction means on the outer face) or on the first lamination interlayer oriented on the internal face side or bonding face or on an additional support (transparent for example plastic film glass ).

The second masking means (opaque or reflective) are preferably identical in material to the first means already described and even in congruence. The first glazing unit / first extraction means / first masking means may be identical to the second glazing unit / second extraction means / second masking means. Preferably, between the first optical isolator which is a low index film (detailed later) and the inner face, no other elements than those mentioned above are added. Preferably, between the second optical isolator which is a low index film (detailed later) and the bonding face, other elements than those mentioned above are not added. The first and second masking means (especially opaque) can be confused when the second scattering patterns are in congruence with the first scattering patterns and: - the first opaque masking means absorb the main wavelengths of Cl, C3 (and the where appropriate C2 or C4), in particular are black or extra thick (white etc) - or the first masking means reflect the main wavelengths of C1, C3 (and optionally C2, or C4). In other words, the first masking means, remote from the second extraction means and preferably (directly) on the first extraction means, are then used to realize the one-way vision on both the first glazing side and the second side glazing side. However, for safety, even in this configuration of congruence (same shape, same size, coincidence), it is preferred to add second masking means (opaque) distinct: - as opacity reinforcement (in case the first opaque means have a TL still too high) - or as light reflection reinforcement (in case the first reflecting means have a TL still too high). An opaque coating is preferred, in particular congruent with the extraction means, such as an enamel, an ink or a paint. The second means of masking the first means are identical from an opacity point of view or complementary to the first means for the opacity of all the main wavelengths C1, C3 (C2, C4 and other possible), better of all the wavelengths emitted by the first and second sources. On the internal face side or gluing side facing the first means or the second masking means, the transmission factor of each main wavelength preferably being at most 1% or even at most 0.5%. Advantageously, the first extraction means are on the internal face, the first masking means comprise (consist of) an opaque or even reflective layer, in congruence and (directly) on the first extraction means, the transmission factor at the main wavelengths of C1 and / or C2 and / or C3 and / or C4 (preferably red and / or green) better in all the visible side internal face opposite the first masking means being preferably from to plus 1% or even at most 0.5% and preferably the second extraction means are on the bonding surface, the second masking means comprise (consist of) an opaque or even reflective layer, in congruence and (directly) on the second extraction means, the transmission factor at the main wavelengths of C1 and / or C2 and / or C3 and / or C4 (preferably red and / or green, preferably complementary or reinforcement of the first means of masq uage) better in all the visible side bonding side opposite the second masking means being preferably at most 1% or even at most 0.5%. And the first extraction surface may be congruent with the second extraction surface and even inside the first masking and extraction means may be congruent with the second masking and extraction means. In a preferred embodiment for achieving the one-way vision of each of the first and second extraction units, the first extraction means comprise (consist of) a diffusing layer of enamel - in particular containing a mineral pigment preferably white-on the inner face, the first masking means comprise (consist of) an opaque enamel layer - in particular containing a mineral pigment (black or colored or white) - in congruence and (directly) on the diffusing layer of enamel, the transmission factor at the main wavelengths of C1 and / or C2 and / or C3 and / or C4 (preferably green and / or red) better in the visible side internal face opposite the first masking means being preferably at most 1% (and even at most 0.5%). And preferably the second extraction means comprise (consist of) an enamel diffusing layer - in particular containing a mineral pigment - on the bonding surface, the second (optional) masking means comprise (consist of) a layer opaque enamel -containing a mineral pigment (black or colored or even white) - in congruence and (directly) on the enamel diffusing layer, the transmission factor at the main wavelengths of Cl and / or C2 and / or C3 and / or C4 (preferably complementary or reinforcing the first masking means, preferably red and / or green) better in the visible bonding face side opposite the second masking means preferably being at most 1% (and even at most 0.5%). And the first extraction surface may be congruent with the second extraction surface and even better, the first masking and extracting means may be congruent with the second masking and extraction means. 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 model of chromatic representation CIE Lab (1931) which varies from 65 to 85, measured on the first glazing. Clarity L * can be measured under the conditions of CIE Recommendation 35 (1931) using an illuminant D65, an observer at 10 °, in SCE mode (specular component excluded) diffuse 8 ° (CM 600 Minolta). The thickness (wet or final) of the enamel diffusing layer is preferably greater than the thickness of the opaque enamel layer (directly) on it. For the first (and even the second) masking means, the mineral pigment is preferably chosen from the pigments which make it possible to impart a black color. By way of examples, mention may be made of pigments based on chromium, iron, manganese, copper and / or cobalt, in particular in the form of oxides or sulphides. Although chromium-based pigments provide an intense black color, they are not preferred because of problems related to their potential toxicity and their recycling. Thus, preferably, the inorganic pigment is free of chromium.

Advantageously, the black mineral pigment has a clarity L * as defined in the CIE Lab chromatic representation model (1931) which is less than or equal to 15, preferably less than or equal to 10, measured on the masking side. The inorganic pigment for the masking may be of a different color than black, and is for example based on Cr 2 O 3 (green color), Co 3 O 4 (blue color), cobalt blue, based on iron oxide, Fe203 (brown). The glass frit of the diffusing layer is free of PbO lead oxide for reasons related to the preservation of the environment. Preferably, the glass frit is a borosilicate based on bismuth oxide Bi 2 O 3 and / or zinc oxide ZnO. For example, the glass frit based on Bi 2 O 3 contains 35 to 75% by weight of SiO 2 and 20 to 40% by weight of Bi 2 O 3 and advantageously 25 to 30%. For example, the ZnO based glass frit contains 35 to 75% by weight of SiO 2 and 4 to 10% by weight of ZnO. For example, the glass frit has the following composition (in percentage by weight): 54% SiO 2, 28.5% Bi 2 O 3, 8% Na 2 O, 3.5% Al 2 O 3 and 3% TiO 2, the remainder being of BaO; CaO, K2O, P2O5, SrO and ZnO. The manufacture of an assembly of discrete black / white patterns is described in patent WO2012 / 172269 (in reverse form to the diffusing / opaque patterns according to the invention) or EP1549498. The outer (respectively outer) face is preferably free (of coating, covering) except possibly the first extraction means (respectively second extraction means). At the outer face and air interface, most of the spokes are guided. The first (second) optical isolator, the first (second) lamination interlayer are transparent and have refractive indices adapted for propagation of the guided rays. Most of the rays that are refracted and reach the first optical isolator are reflected except for high angle rays in an area close to the so-called first margin optical zone as detailed later.

The second object of the invention is a luminous glazed unit, in particular for an access door between first and second spaces comprising: a first glazing (transparent, clear, extraclear and better tempered), preferably made of mineral glass, and even tempered or even organic, of refractive index n1, preferably less than 1.6 at 550 nm (better in the visible spectrum as a whole), and even less than 1.55 at 550 nm (better in the visible spectrum as a whole) 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, first light source (visible), preferably a set of light-emitting diodes (on a first PCB support, aligned, in a bar (s)) or even an optical fiber extractor with a primary source of light (diode (s)), optically coupled to first glazing, by the first slice 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, first source of light driven statically or (preferably ) in dynamics to emit (preferably in the green) at time t0 a first main radiation at a first wavelength called X1 (X1 preferably green) and preferably switchable to emit (preferably in the red) at time t4t0 a second main radiation at a second wavelength X2 distinct from X1 (preferably distinct from X1 of at least 20 nm, 40 nm and even at least 80 nm, X2 preferably red), and in particular for emitting (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 main radiation, - first extraction means one of light (resulting from the guide) associated with the first glazing unit, comprising one or a plurality of first extraction patterns (preferably diffusing) and delimiting a first extraction surface (occupying all or part of the internal face, preferably first off margin zone optically coupled with the first source, in particular occupying an area, such as a strip, from the first slice to the opposite slice except preferably said first margin zone), the extracted light being visible on the outer side, the first means extraction (in particular white diffusing layer, preferably defined by a clarity L * of at least 50) being such that the light extracted at said tO is of a first color called Cl (C1 preferably in green, corresponding to a passing state of an access gate, C1 of main radiation X'1 substantially equal to X1) and preferably said t 'is of a second color called C2 distinct from the first C1 color (C2 preferably in the red, corresponding to a stop for an access door, C2 main radiation X'2 substantially equal to X2) including the first light extraction means preferably comprise diffusing means on the side of the inner face (preferably on the internal face, or in / on a first lamination insert, etc.) and / or on the side of (even preferably on) the outer face and / or in the mass of the first glazing, optionally means concentrator of the light, - first means for masking the extracted light (first extraction means) on the internal side side, arranged on the internal side, at least opposite the first extraction means, opaque (mainly absorbing) - in particular at least absorbent at the main wavelengths of C1 and / or C2 (and / or C3 and / C4 defined later) - or reflective (mainly reflecting), preferably covering the first surface of extraction and even the inner face - between the first extraction means and the first masking means, a first transparent optical isolator of refractive index n2 such that at the wavelengths of the first light source ( and better in the entire spectrum of visible), nl-n2 is at least 0.08, even at least 0.2 or better 0.3, which is at least opposite the inner face: between the first extraction patterns (if several, or in the hollow of a hollow closed pattern), preferably covering the first extraction surface, and / or (preferably and) facing the inner face between the first slice coupling and (the adjacent edge of) the first extraction surface, and preferably facing the inner face between the first extraction surface and the wafer opposite the first wafer, first optical isolator possibly substantially covering the inner face (except possibly a first zone called cot margin optically coupled with the first source), - in optical contact with the first glazing, in particular separated by one or more layers, a second glazing (preferably made of mineral glass and even tempered or even organic (especially rigid), transparent, clear, extraclear and better soaked), of refractive index n1 in particular less than 1.6 to 550nm and even less than 1.55 to 550nm (better in the entire visible spectrum) or even less than or equal to 1, 53 to 550 nm (better in all the visible spectrum), preferably 1.5 to 1.53, with principal faces called bonding face and outer face, the bonding face being opposite the inner face, and a slice, said second slice (aligned or offset from the first slice towards the outside of the glass unit, leaving a peripheral strip of the bonding face protruding from the first slice or slice opposite to the first slice), a second source of light re, preferably a set of light-emitting diodes (on a second PCB support, aligned, in bar (s)), preferably identical to the first light source), or even an optical fiber extractor with primary source of light (diode (s) )), optically coupled to the second glazing, 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 guiding the light emitted by the second light source, (second slice on the side of the first slice, aligned or shifted towards the inside of the glazed assembly, or side opposite to the first slice), the second light source being controlled, statically or dynamically (preferably) for transmitting at said t0 (preferably in red) a third main radiation at a wavelength X3 distinct from X1 (preferably distinct from X1 of at least 20 nm, 40 nm and even at least 8 nm). 0nm, X3 preferably X3 red) and even preferably substantially equal to X2 and preferably, dynamically, to emit (preferably in the green) at time t 'a fourth main radiation at a wavelength known as X4 distinct X3 (preferably distinct from X3 of at least 20 nm, 40 nm and even at least 80 nm, X4 preferably green), or even distinct from X2, and preferably substantially equal to X1, and especially to emit (in the white, red or green, blue) at t34t0 and t34f a principal radiation (decorative or functional) even still distinct from the third and / or fourth (even from the first and / or second) main radiation, - second means of extraction of light associated with the second glazing, comprising one or a plurality of second extraction patterns (preferably diffusing) and delimiting a second extraction surface (occupying all or part of the bonding surface, preferably outside the xth margin zone optically coupled with the second source, in particular occupying an area, such as a strip, from the second edge to the opposite edge except preferably said second margin zone), the light extracted from the second glazing being visible on the outside face , the second extraction surface preferably being facing and even congruent with the first extraction surface, second light extraction means (in particular white diffusing layer, preferably defined by L * of at least 50) such that the light extracted at t0 is of a color called C3 distinct from Cl (C3 preferably in red, corresponding to a stop for an access door, C3 of main radiation X'3 substantially equal to X3, distinct from X ' at least 20nm, 40nm and even 80nm, preferably X'3 of the red), preferably substantially equal to C2 (X'3 substantially equal to X'2) and preferably to said t 'the extracted light is d' a color said C4 distinct from C3 (C4 preferably in the green, corresponding to a passing state of an access gate, C4 main radiation X'4 substantially equal to X4, distinct from X'3 of at least 20nm and even 40nm or 80nm, X'4 of the green), even distinct from C2, preferably substantially equal to Cl (X'4 substantially equal to X'1,), second masking means of the extracted light side bonding side, arranged on the bonding face side, at least opposite the second extraction means, opaque (mainly absorbent) or reflective (mainly reflecting), preferably covering the second extraction surface and even the bonding face, - between the second means extraction device and the second masking means, a second transparent optical isolator of refractive index n2 such that at the wavelengths of the second light source (and better in all the visible spectrum) n'1-n'2 is at least 0.08, even at least s 0.2 or 0.3 which is at least opposite the bonding face: between the second extraction patterns (if several, or in the void of a hollow closed pattern), preferably covering the second surface extraction, and / or preferably facing the bonding face between the second coupling portion (and the adjacent edge of) the second extraction surface, and even preferably facing the bonding face between the second extraction surface and the slice opposite to the second slice, possibly second optical isolator substantially covering the bonding face (except possibly a second area called margin optical coupling side with the second source).

The first insulator has a first main surface on the inner face (and a second main surface on the bonding side): the first main surface is (directly) on the inner face (possibly -local- on the first extraction means on the side internal face) - or the first insulator being laminated by the first main surface to the first glazing by means of a first laminating interlayer, first transparent polymeric material (preferably thermoplastic or thermoset), which is of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 and even less than 0.03, at the wavelengths of the first light source The second optical isolator, having a third major surface on the bonding side (and a fourth main surface on the inner side), - the third main surface is (directly) on the bonding face (possibly -local- on the uxièmes means extraction face bonding side), - or the second optical isolator is laminated by said third main surface to the second glazing by means of a second interlayer lamination, second transparent polymeric material (preferably thermoplastic or thermoset-de preferably identical or similar to the first material-), which is of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 and even less than 0.03 to the lengths of the second light source. And the glass unit comprises between the first optical isolator and the second optical isolator, a so-called central laminating interlayer, polymeric material said third material, in particular for assembling first and / or second masking means, in particular transparent (preferably thermoplastic or thermoset-preferably identical or similar to the first material). Two optical isolators framing the first and second laminated masking means (means which can be confused as described later) are used here for the one-way vision on each of the glazings: the first isolator preventing the first and second (possible) main radiations are absorbed by the first masking means, otherwise the extraction of some of the first scattering patterns, especially those furthest from the first source, is greatly limited, the second isolator preventing the third and (if any) fourth main radiations they are absorbed by the second masking means, otherwise the extraction of some of the second scattering patterns, especially those furthest away from the second source, will be severely limited.

The second extraction surface is preferably opposite the first extraction surface, and even (entirely) congruent, of the first extraction surface - or at least with a congruent zone and with another zone offset from the first extraction surface (horizontally and / or vertically), leaving visible the second masking means, or is of smaller size than the first extraction surface and inscribed in the first extraction surface in congruence with an area of the first extraction surface, (part of the first masking means remaining visible). The first extraction surface may be congruent with the second extraction surface and / or the first masking and extraction means may be congruent with the second masking and extraction means. Is meant according to the invention (first as second object) by second extraction surface congruent with a first extraction surface a surface of the same shape (general outline) and the same size and exact coincidence or with a submillimetric lateral resolution same at most 500pm and even 100pm. The first and second surfaces are usually surfaces with discontinuities. Inside the extraction surfaces, the second extraction units are preferably congruent with the first extraction patterns. According to the invention is meant by first opaque pattern (s) congruent with first extraction pattern (s), in solid surface, for each opaque pattern the same shape and the same size, and a coincidence with a submillimetric lateral resolution of the same. at most 500pm and even 100pm is meant according to the invention by second congruent extraction pattern (s) with first pattern (s) extraction, full surface, for each second pattern the same shape and the same size, and a coincidence with a submillimetric lateral resolution even of at most 500pm and even 100pm. For example, first disk patterns and second square patterns are considered congruent by satisfying the aforementioned lateral resolution. First patterns in discs and second patterns in smaller discs are considered congruent with the aforementioned lateral resolution. The second surface may be larger than the first extraction surface and include a congruent area (and more preferably with second extraction patterns congruent with the first extraction patterns) and an area offset from the first extraction area. The second surface may be smaller than the first extraction surface and inscribed therein, thus with a congruent zone (and better still with second extraction patterns congruent with the first extraction patterns). The first surface may therefore have a masked extraction zone which is not facing a second extraction surface.

For better security, particularly for an access door, it is preferred to choose to flick the first and second windows and use a first (and second) optical isolator in optical contact with these windows. As a variant, in particular for the first object, the first and second optical insulators and the first and second lamination interleaves are eliminated, the first and second glazings are spaced apart by air (ideal optical isolator) and assembled (sealed) by periphery preferably with spacers, for example as a double glazing (insulating glass or vacuum). The first masking means are preferably in congruence and spaced apart from the second masking means. On the edge of the glass unit, on the opposite side to the first (and even second wafer) can be added a polymeric seal for example black, elastomer. This seal does not interfere with the guidance, it is preferably not in optical contact with the outer face (even outside) and is less than 3cm wide and can accommodate even other light sources optically coupled. This seal can be added to a mounting profile of the glass assembly (or fixing light sources) metal for example U section. In this second object, the first and second masking means can be combined when the second extraction means (pattern (s)) are congruent with the first extraction means and / or when the first masking means cover (substantially) the internal face and the bonding face (in particular at one or more margin zones closely related to optical couplings), in particular comprise or are an opaque coating (black, colored, even white,). even an opaque film. In this second object, the first masking means comprise (preferably consist of) preferably an opaque coating, such as an ink, a paint or an enamel, in particular an ink (printed) or paint on the central lamination interlayer (side internal face or bonding face), an opaque coating on an additional support including plastic or mineral glass (flexible such as a (PET poly (ethylene terephthalate), or a glass (ultra) thin), possibly sticky or laminated to For example, it is a lacquered glass of less than 3 mm, such as the Planilaque Evolution or Decolaque product of the applicant company laminated by the central lamination interlayer, Naturally, the first radiation has a given first spectral range. Naturally, the second radiation has a second spectral range given by the first (respectively second) main radiation according to the invention. most intense event in the spectral range emitted at time t0 (resp. t ') by the first light source. And by third (fourth reps) principal radiation according to the invention is meant the most intense radiation in the spectral range emitted at time t0 (resp ') by the second light source. Preferably, the spectral range of the first radiation is narrow at most 50 nm and is non-overlapping with the spectral range of the second radiation also narrow 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 commonly used today are searched. Thus: at t0: the first source emits in the green with X1 in a range from 515nm to 535nm and preferably at a mid-height spectral width of less than 50nm (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 30nnn), the second source emits in the red with X3 in a range from 615nm to 635nm and preferably from a spectral width at mid-height of less than 30nnn (and the extracted light C3 is red defined by a third main extracted radiation at X3 'substantially equal to X3, for example distinct from at most 10nm or 5nm and preferably with a spectral width at half height of less than 30nnn) or white and at the first source emits in the red with X2 in a range from 615nm to 635nm and preferably from spectral width half-height of less than 30 nm (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 10 nm or 5 nm and preferably with a spectral width at half 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 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) X4 'substantially equal to X1, for example separate or lOnm at most 5 nm and preferably with a spectral full width at half maximum of less than 30 nm). And preferably: the first extraction means are diffusing by frosting of the external face and the second extraction means are diffusing by frosting of the outer face; or, better, the first extraction means comprise a diffusing layer ( white, enamel) preferably on the inner side and the second extraction means comprise a diffusing layer (white, enamel) preferably bonding side side. Another configuration is that for example at t3 each source emits in green or in white. It is also possible for one of the sources to be off (hence the following configurations: red and off state, green and off state, white and off state). There may be decorative zones of distinct colors. 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 slot. and the second light source is a set of light emitting diodes - preferably aligned - on a printed circuit board known as a second PCB support and coupled to the second wafer which is preferably aligned (or shifted) of the first or aligned wafer or even shifted from the opposite slice to the first slice. The first (second) PCB support may be a resin composite (epoxy) reinforced with glass fibers (often called FR-4), metal (aluminum, copper, etc.) for example of millimeter thickness or even below. 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 X1 and the second light source contain only third diodes X3. At t0 the first source comprises a first diode which emits in the green with X1 in a range from 515nm to 535 nm, and t 'the first source comprises a second diode which emits in the red with X2 in a range of 615nm at 635nm. The response of the ear is better for green than for red and furthermore glass (mineral or organic) absorbs more red than green. 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 less than 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 and then the green.

The normal luminance on the outer face (or outer side) side with green Cl (or C2 red) is preferably at least 80cd / m 2 especially for the access doors. The normal luminance on the outer side (or outer side) is preferably uniform to +/- 10 cd / m2. 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 glazed assembly (especially if free opposed slices) and in particular hidden by a mounting profile of the glass unit which also even wear 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 said first PCB support (preferably strip) and coupled to the first wafer being glued to the first wafer by an adhesive optical or a double-sided transparent 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: - 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 a primary encapsulation - or being spaced from the second slice of 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 substantially aligned (for a distance of at most 5 mm and even at most 2 mm between diodes and first or second slices). For top-emitting diodes (conventional diodes), the common PCB support can 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 glass unit with 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 set on a first main face and the second set on the opposite face. A metal PCB is preferred for heat dissipation. Alternatively PCBs are contiguous or spaced for example by a metal part. Especially if their radiation patterns are wide (half emission angle at half height of 50 ° or even 60 ° for example) and even when the emitting faces are at a distance of the slices of at most 5mm and even at most 2mm , it is possible to provide a partitioning between the first and second light sources if they are arranged on the same side of the glazed assembly (in particular without significant shift, by more than 1 mm, of the first wafer and the second wafer), for example : - via the PCB support (s) if the diodes are lateral emission, in particular PCB support (s) in a groove between the first and second glazing (in particular by removal of the elements between the first and second glazing such as the first spacer, the first insulator, the second spacer) - or via a profile (preferably mounting the glass unit) in E or double C or a room between the light sources reported on a mounting profile. A mounting profile of the glazed assembly (with a bearing, block, etc.) can be a U (base facing the edge of the glazed assembly and on both sides and side wings on the outer and outer faces) or at E with the central branch of the remote E (spaced apart) from the glazed assembly of less than 1 mm or even extending in a groove between the first and second glazings. It can be metallic and / or plastic (PVC, rigid) and / or wood.

A section for fixing the first (and / or second) light source to the first (and / or second) slice may be a rectangular base (strip) or a T-section, or U (base facing the slice of the glass unit and on both sides, for example on the outer and outer sides) or in E with the central branch of the remote E (spaced apart) from the glass unit of less than 1 mm or even extending in a groove between the first and second glazing. It can be metallic (preferred for heat dissipation) 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. Otherwise, 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 additional fixation profile. In particular, in a configuration where the first and second light sources are on opposite sides, the second glazing (preferably of the same or similar size of the first glazing) protrudes from the first slice forming a first protruding zone and preferably the first glazing protrudes from the second slice forming a second protruding zone and the first light source onto a first support which is connected to the first protruding zone and / or in the first protruding zone and not exceeding the second slice and preferably the second light source is on a second support, which is connected to the second protruding zone and / or is in the second protruding zone and not exceeding the first slice. The first glazing may comprise: - a peripheral recess (local, over 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 support, such as a printed circuit board, said first PCB support (diodes), 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 internal face and the bonding face, especially if the first light source (diodes) with lateral emission, and / or still fixed 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 identical 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 printed circuit board called second PCB support (of diodes), in the second protruding zone, does not protrude from the first slice of the glazing and even from the plane of the outer 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 groove between the inner face and the bonding face, in particular 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. A first PCB support (or second PCB support) may be preferred for heat dissipation or may be fixed from behind to a metal base preferably not exceeding the second (or first) wafer and even the the outer face (or outer face). This base can be a bar, of L-shaped section or even U. The first and second (possible) opaque masking means prevent the light extracted from a glazing to cross until reaching the other glazing. Preferably, the first glazing unit with the first opaque masking means has, with regard to the masking and masking side farthest from the first glazing unit: an absorption (at the main wavelengths of Cl and / or C2 and / or C3 and / or or C4), even in all the visible range) of at least 80% and even at least 90%, - a transmission factor (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4, even in all visible areas) of 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 at most 0.5%) and / or 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 .

When opaque masking means (opaque coating) are lined with a reflective layer, on its face facing the extraction means, for example a thin metal layer, it is sufficient that the assembly has the optical density, transmission, absorption above. For the first or the second object, the first opaque means according to the invention can be black or gray (dark) but also colored if they are distinct from the second opaque means and in congruence, as for example based on at least one mineral pigment (like those already mentioned), and better opaque enamel layer. It is thus possible to provide: the first masking means and the second masking means are each black (by black pigment) or gray; the first masking means are colored and absorb the green in particular are based on red: brown red, violet, orange, pink - and the second masking means are colored, absorb the red in particular are green or another color that is not based on red, for example blue, yellow, green, - the first masking means are white ( or any other color) but absorbing by their sufficient thickness, for example by white enamel (or any other color) enamel thickness forming the first extraction means, the second masking means are white but absorbing in their thickness sufficient (or any other color), for example white enamel excess thickness forming second extraction means. It may be desired not to see the first masking means (or even the second), and preferably the second extraction surface is congruent with the first extraction surface, in particular for the first object, or in the second object if the means masking are not fully covering (in the clear glass). The first masking means are then invisible thanks to the second extraction means or even thanks to the second masking means so distinct (spaced) from the first. High angle rays emitted by the first source could exit into a first peripheral zone (without extraction means) and go as far as the second glazing and also exit (directly) through the outer face, in particular for the first object, or in the second object if the masking means are not fully covering (in the clear glass). These hot spots can be hidden for example by a first section (mounting, attachment as already described) opaque and / or reflective - preferably metallic, or plastic, or wood - preferably not in optical contact with the outer face of the second glazing (by its surface irregularities) or is glued and absorbs the rays.

Similarly, high angle rays emitted by the second source could exit in a second peripheral zone (without extraction means) and as far as the first glazing and also exit (directly) through the outer face. These hot spots can be hidden for example by a second section (mounting, fixing as already described) opaque and / or reflective - preferably metal, plastic path, wood - preferably not in optical contact with the face external of the first glazing (by its irregularities of surface) or then is glued and absorbs the rays. Naturally the first and second section (mounting, fixing as already described) can be confused if first and second slice of the same side of the glass unit. Typically, the hot spots are preferably concealed over a width W of at least 1 cm and preferably of at most 5 cm and better still 3.5 cm. In addition, for economy and for extraction efficiency if the edge of the glass unit is to be concealed (mounting profile, attachment etc.) on the width W between 1 cm and 3 cm, by the periphery of the first slice a profile, preferably metallic, 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 (area width of the hot spots), so start at the beginning of the window pane. In the absence of masking by a profile (mounting, fixing) or other (seal etc), one may wish instead to start the extraction (with its masking) as close as possible to the edge, and even form an anti mixture as detailed below.

More broadly, in a peripheral band of width OD less than W, rays could emerge from the inner face, be refracted by the gluing face, guided in the second glazing and extracted by the second extraction means (in particular the most close to the second slice) causing pollution of the color C3, for the first object, or in the second object if the masking means are not in this peripheral band. Pollution can occur in color symmetrically. This zone is called the first margin zone for the first glazing or second margin zone for the second glazing. Also in a first "anti-mixing" configuration, preferably for the first object, the first light source -comportant a set of diodes (aligned on a first PCB support), comprises a first light-emitting diode with said first main radiation at X1 preferably green and a second light-emitting diode, with said second main radiation at X2 preferably red, each of the first and second diodes is spaced from the first slice -by a space, air- (preferably less than 5mm and even at most 2mm) and at least 80% (better at least 90% and even at least 95%) of the luminous flux emitted by each of the first and second diodes is in an emission cone between -al and al with al = Arsin (n1 * sin (a2)) where a2 = (7t / 2) - Arsin (n2 / n1) and corresponds to the angle of refraction in the first glazing, in particular by first means of collimation (on transmitter chips). And the second light source -comportant a set of diodes (aligned on a second PCB support) - comprises a third light emitting diode with said third main radiation of X3 preferably red and optionally a fourth light emitting diode with said fourth main radiation of X4 preferably green, the third diode or even the fourth possible diode is spaced from the second slice - by a space, by air- (preferably less than 5mm and even at most 2mm) and at least 80 % (better at least 90% and even at least 95%) of the luminous flux emitted by each of the third and fourth diodes is in an emission cone between -al and al with al = Arsin (n'1 * sin (a ' 2)) where a'2 = (7t / 2) -Arsin (n2 / n1) and corresponds to the angle of refraction in the second glazing, in particular by second collimation means. It is desired that there is total internal reflection at the interface with the first optical isolator for all angles including the large angles. Arsin (n2 / n1) corresponds substantially to the total reflection angle at the interface with the first optical isolator (a'2 is the complementary angle to have this total reflection). More precisely it would be necessary to involve Arsin (n2 / n3) but n3 being very close to n1 the impact is negligible.

The following Table I gives examples of al, ar versus n2 for n1 = 1.5 where ar is the refraction angle. The following table shows examples of al (emission angle for total reflection), a2 (refraction angle for total reflection at the interface). of the first optical isolator) as a function of n2 for n1 equal to 1.5 or 1.52. It can serve as an abacus. n2 = 1.4 n2 = 1.35 n2 = 1.3 n2 = 1.25 n2 = 1.2 n2 = 1.15 n2 = 1.1 a2 n1 = 1.5 21 26 30 34 37 40 43 a2 n1 = 1.52 23 27 31 35 38 41 44 al n1 = 1.5 33 41 48 56 64 74 al n1 = 1.52 36 44 51 59 67 79 Table 1 Below n2 = 1.15, we can choose conventional diodes without collimation means see even below n2 = 1.2. Preferably the majority and better all the diodes of the first and second light sources have such a narrow emission diagram, in particular by means of collimation.

The collimation is individual or even common to several diodes of each source (green diodes, red diodes, even green and red diodes) ... Of course we put as many diodes emitting at X1 and diodes emitting at X2 than necessary and we adjust their distribution (number, spacing) 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 bring new colors of light or functionality and it is also preferable to choose their narrow emission diagram. For the second object, these narrow emission diagrams are useful especially if the masking means are not present in these margin areas. When selecting an extractor optical fiber for each primary source, narrow emission diagrams can also be chosen. Also in a second "anti-mixing" configuration, there is provided a first (full) so-called antimixing strip which is in optical contact with the inner face, at the periphery of the inner face, extending from the first (coupling) portion. optically with the first source), a band of width DO at least equal to 0.8Dmin and better still equal to Dmin with Dmin = dl / tan ((n / 2) -arsin (n2 / n1)) and preferably less than 2cm and even at 1 cm (and preferably less than W), where dl is the distance between the first light source and the inner face. The first strip of opaque material is shifted (all or part) of the first masking means and the first extraction surface further from the first slice where the first strip is formed by a pattern of the first opaque masking means (and preferably (directly) on an internal surface extraction pattern).

So (all or part of) the first extraction surface starts from the first slice. 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 installment. dl is 1 to 5 mm better from 1 to 3mm. For one chooses preferably the edge of the first source farthest from the inner face. As a precaution, it is also preferable to add a third congruent anti-mixing band (and preferably of identical material) to the first anti-mixing band on the (external) side. For example it is an opaque enamel (black etc). And preferably a second (full) said anti-mixing band which is in optical contact with the bonding face, at the periphery of the bonding face, extending from the second wafer (of the optical coupling with the second source) band of O width at least equal to 0.8Dmin and better equal to Min with min = 1 / tan ((n / 2) -arsin (n2 / n1)) and preferably less than 2cm , and even at 1 cm (and preferably less than W) and opaque material where l is the distance between the second light source and the bonding face. The second band of opaque material is shifted (all or part) of the second masking means and the second extraction surface further from the second wafer or the second band is formed by a so-called masking pattern (and preferably (directly ) on an extraction pattern on the bonding face) second opaque masking means. So (all of part of) the second extraction surface starts from the second slice. 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 compared to the second tranche. is from 1 to 5 mm better from 1 to 3mm.

For preference is chosen the edge of the second source farthest from the bonding face. As a precaution we limit the width of the (first and second) antimixing strip so as not to eliminate too many rays (including guiding rays). As a precaution, it is also possible to add preferably a fourth anti-mixing band congruent (and preferably identical material) to the second anti-mixing band side (even) on the outside. For example it is an opaque enamel (black etc).

The following table 11 gives examples of Dmin as a function of n2 and n1 and d1.11 can serve as an abacus. n1 n2 dl Dmin (mm) (mm) 1.5 1.15 1 1.2 1.52 1.15 1 1.2 1.5 1.2 1 1.3 1.52 1.2 1 1.3 1.5 1.25 1 1.5 1.52 1.25 1 1.4 1.5 1.3 1 1.7 1.52 1.3 1 1.7 1.5 1.35 1 2.1 1.52 1.35 1 1.9 1.5 1.4 1 2.6 1.52 1.4 1 2.4 1.5 1.15 3 3.6 1.52 1.15 3.5 1.5 1.2 3 4.0 1.52 1.2 3 3.9 1.5 1.25 3 4.5 1.52 1.25 3 4.3 1.5 1.3 3 5.2 1.52 1.3 3 5.0 1.5 1.35 3 6.2 1.52 1.35 3 5.8 1.5 1.4 3 7.8 1.52 1.4 3 7.1 1.5 1.4 5 13.0 1.52 1.4 5 11.8 Table 11 The first strip (as the second strip preferably of identical or similar nature and identical or similar arrangement with respect to the glazing) may be: preferably an opaque coating in optical contact with the inner face and better (directly) on the inner face: - an ink (for example on the inner face or printed on the first lamination interlayer on the inner face or on the opposite side), an enamel (on the inner face of the first glazing preferably mineral), a painting for example on the inner face, a olle opaque, an opaque adhesive tape, - an opaque coating on a support, adhesive to the inner side, especially transparent plastic support (flexible, like a PET, transparent or tinted etc), thin glass, or a metal part, plastic or wood , diode-side PCB support of the first source, (part of the mounting or fixing profile, in particular of metal or plastic or wood) - even an opaque part which is adhesively bonded to the internal face (part of the mounting profile, for fixing as already described, metal or plastic or even wood) and in a groove between the first and second glazing The second band is preferably identical material and as above. Dmin, D'min are equal if we choose the same windows and the same optical isolator (s). DO and D'O are equal for simplicity.

The first and second antimix strips may be facing each other if the first and second slices are aligned. The second band could be confused with the first band if the first band is opaque for all the radiation of the first and second sources of light and of sufficient width also for the rays from the second source. It is preferred to double the means as a precaution. If we choose a single band we prefer to choose the widest width between Dmin and Min. The first and second strips can be facing, even congruent if not on opposite sides of the glass unit. In the zone of the first anti-mixing strip, called the first margin zone, the first spacer and / or the first optical isolator may be absent, and therefore are set back relative to the first slice of at least DO. In the zone of the second anti-mixing band, called the second margin zone, the second spacer and / or the second optical isolator may be absent, thus being set back relative to the second portion of at least D'O. In the zone of the first anti-mixing band (or even the second band opposite), there may be a groove between the first and second glazing without the first and (second) spacers or the first (and second) optical isolator and possibly with a piece with opaque coating to form the first anti-mixing band. An opaque part can be inserted more easily if its thickness (less than the distance between the first and second windows) is at most 0.8 mm and even at most 0.5 mm. In the zone of the second anti-mixing band (for example the side of the glass unit opposite to that of the first band), there may be a groove between the first and second glazing without the first (and second) spacer and the first (and second) optical isolator and optionally with a piece with opaque coating to form the first anti-mixing band. An opaque part can be inserted more easily if its thickness (dimension between the glazings) is at most 0.8 mm and even at most 0.5 mm. According to the invention, the first glazing unit with the first anti-mixing strip has, on the farthest side of the first glazing unit opposite said first strip: - absorption (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4, even in all the visible range) of at least 80% and even at least 90%, - a transmission factor (at the main wavelengths of Cl and / or C2 and / or C3 and / or C4, even in all the visible range) of not more than 2% and not more than 1% or not more than 0.5% (in particular a TL of not more than 2% and even 1% or 0, 5%) and / or 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 of 3 to 4. According to the invention, the second glazing with the second anti-mixing strip has the farthest side of the second glazing facing said second strip: - absorption (at the main wavelengths of C3 and / or C4 and / or C1 and / or C2 according to the first means of masqua ge) of at least 80% and even at least 90%, - a transmission factor (at the main wavelengths of C3 and / or C4 and / or C1 and / or C2 as a function of the first masking means ) 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 0.5%) - and / or a specific gravity at least 2 and better still at least 2.5 and even 3 more preferably 2.8 to 4.5 and in particular 3 to 4. It is further preferred for the opaque anti-mixing strips a light reflection limited to not more than 5% at the main wavelengths. As for the masking means, the first and second antimixing strips according to the invention can be black or gray (dark) but also colored if they are in congruence: - each black (by black pigment in particular) or gray - first colored band absorbing green including red: red brown, purple, orange, pink - second colored band, absorbing red including green or another color that is not based on red, for example blue, yellow, green, - even first white band or other absorbent color by the sufficient thickness, second white band or another color but absorbing by the sufficient thickness, for example, can be screen printed a black enamel or colored tape. For the second object, these narrow emission diagrams are useful especially if the masking means are not present in these margin zones. The first extraction surface (light zone) can cover a part of the surface, thus leaving at least a first dark area, that is to say, non-luminous, can cover part of the surface, thus leaving at least a first zone, a dark zone which is chosen from a transparent zone (clear of glass ...) or a decorative zone by an opaque and / or colored coating, or else a reflecting zone, especially a mirror, for example formed by a silvering covered with a paint of protection.

The first extraction surface (light zone) may extend away from the first wafer, for example according to at least one strip or a drawing. In one embodiment, the glazed assembly comprises a transparent zone -so deprived of the first and second extraction and masking means- (the first extraction surface and the second extraction surface partially covering the first and second glazings) and preferably the slices facing the transparent zone are devoid of light sources and / or the first extraction surface (possibly with the second extraction surface opposite and even with a congruent zone) has a global transparency ( through the glazed assembly) for example formed of patterns spaced between 2mm and 4mm and width of at most 5cm, or 3cm and even 5mm (discrete patterns for uniform light for example). The first light source, in particular a set of diodes, is then preferably arranged only on a portion of the first wafer facing the first extraction surface. The second light source, in particular a set of diodes, is then preferably arranged only on a portion of the second wafer facing the second extraction surface. The transparent zone and all the transparent zones can occupy at least 20% of the surface of the first glazing unit or even at least 50%.

Preferably the TL in the transparent zone is at least 85% and even at least 88%. The blur is preferably at most 2.5%. It is possible (even in the absence of a transparent zone, so zone without extraction reasons) that the size and spacing of some or all of the first extraction patterns are adjusted for an overall transparency of all or part of the first extraction surface. The size and spacing are adjusted according to the extent of the first extraction surface with these first patterns.

It may further be desired that the size and spacing of some or all of the second extraction patterns are adjusted for overall transparency of all or part of the second extraction surface. The second extraction surface can be shifted to the second extraction surface. at least partly from the first extraction surface, the non-overlapping area of the second extraction surface having part of the second masking means. The slice opposite to the first slice can be polished (and straight) or diffusing. The slice opposite the second slice may be polished or diffusing. Preferably, for an application where the opposite slices are visible (without mounting profile, fixing, masking or even without polymeric seal), the first and second slices are on the same side of the glass unit and even are aligned and even the opposite slices are not optically coupled. 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, controlled (preferably) dynamically, on the edge opposite to the first slice in particular if the first extraction surface has a characteristic dimension along the light propagation axis of at least 450mm (away from the first source) and preferably comprises a fourth light source identical to the second light source and opposite, synchronized with the second source, preferably driven dynamically, on the edge opposite the second edge, especially if the second extraction surface has a characteristic dimension along the axis of propagation of the light of at least 450 mm ( away from the second source). In the latter case, as the first source, the third source is preferably hidden by a mounting profile preferably metal (or rigid plastic, wood) and / or U-section and if necessary as the second source, the fourth source is hidden by a mounting profile for example metal (or plastic or wood and / or U-section. In particular, the glass assembly comprises a mounting frame for example a metal or plastic profile (rigid), made of polychloride. PVC vinyl, or wood) and / or U-section and the light sources are in the interior volume between the mounting frame and the slices on the two vertical uprights fixed to the frame or fixed to the glazing by the wafer (by a profile fastening for example). In the latter case, the third source may be hidden by a polymeric joint (black, dark etc), for example elastomer (an ethylene-propylene-diene monomer EPDM etc.), especially if in mounting configuration two glass units (leaves ) spaced apart and opening laterally (sliding etc) .. This seal does not interfere with the guide, 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 are kicking too fast (on the pedestrian). 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. In the recess (recess) it is preferred that the first optical isolator is facing the inner face.

The extraction patterns, diffusing are for example geometric: rectilinear or curved strip, concentric circles, L. 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 is preferably used diffusion means, formed either by a surface treatment of sandblasting type glass, acid attack, enamel or diffusing paste deposit, or by a treatment in the mass of the glass of type laser engraving. The extraction means may form a light concentrator (directed light emission) for example: reflective means facing each of the extraction means (scattering) and able to reflect the extracted rays in a given direction as described in FIG. Document FR2989176, - lens as described in document VV02005 / 018283, For the extraction of light is used diffusion means, formed either by a surface treatment of the sandblasting type glass sheet, acid attack, enamel deposit or diffusing paste or paint, or by a treatment in the mass of laser engraving type glass. 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 a 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.), especially white, for the first and / or second extraction means may be less than 2.5 to even less than 1.5 or 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 fine patterns. 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 chosen 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 extraction enamel exhibits the following composition: - between 20 and 60% by weight of SiO2, - 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 enamel under the name Ferro 194011 marketed by the company FERRO, the reference AF5000 marketed by the company JM, reference VV30-244-1 marketed by Pemco are very white with a gloss greater than 20 and have a low light transmission, less than 40%. Preferably it is a plurality of patterns and preferably diffusing (preferably 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% of the outer (outer) side. The first extraction means, in particular enamel, extend, for example on the whole of a face of the glass, discontinuously or according to geometric shapes sparse curved lines and / or straight. The extraction means are for example fractal geometry. According to another characteristic, the first extraction means extend discontinuously and delimits dark areas including patterns of geometric shapes sparse curved lines and / or straight lines, in particular of length (greater dimension) at least centimeter. 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 can be of outline straight or curved, may be geometric (rectangular) may be of width less than the first glazing 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.

The first extraction surface may comprise: a first network of point scattering patterns, in particular geometric (square, round, etc.) and in particular of the same shape, with a width of at most 1 cm (width, along the axis of propagation of the light), better at most 5mm and even at most 2.5mm possibly variable (larger away from the first source if no light source opposite) and spaced a step pi at most 1cm, better of at most 5mm possibly variable (smaller away from the first source if no light source on the opposite), in particular width and not adapted for a global transparency (in the sense vision at through the first glazing, in this first extraction surface), and / or a first decorative diffusing pattern of width 12 (width, along the axis of propagation of light) centimeter and at most 5 cm better at most preferably surrounded (even interlaced) with the first network, - and / or a first set of characters such as a LOGO and / or such as letters and / or numbers, each 13 cm wide (X-ray width of light propagation) and not more than 5 cm better than at most spaced by a pitch p3 of at most 1cm, preferably at most 5mm preferably surrounded by the first network of scattering patterns point.

And preferably the first extraction means are on the inner face and the first masking means are (directly) on the first extraction means. And preferably the second extraction surface facing and even congruent with the first extraction surface and comprises: - a second network of scattering patterns, particularly geometric (square, round etc.) and in particular of the same shape, of width d 'not more than 1cm better than 5mm and not more than 2.5mm (width, depending on the axis of propagation of light) possibly variable (smaller when moving away from the second source if no source at the opposite) and spaced p'i not more than 1cm better by at most 5mm possibly variable (larger away from the second source if no source opposite), including width and not adapted for overall transparency (in the vision sense through the second glazing, in this second extraction surface preferably congruent with the first surface) - and / or a second decorative diffusing pattern of width 2 (width, according to FIG. light propagation axis) centimeter e and at most 5 cm preferably surrounded (even interlaced) with the second network, congruent with the first decorative diffusing pattern or facing the first network of scatter patterns (even covering the second decorative diffusing pattern), - and / or a second set of diffusing characters such as a LOGO and / or such as letters and / or figures, each 1'3 cm wide (width along the X axis of propagation of light) and at most 5 cm spaced from a pitch p'3 of at most 1 cm, even at most 5 mm, preferably surrounded by the second network of scattered scatter patterns, congruent with the first scattering assembly or facing the first diffusing pattern grating punctual (covering even the second diffusing set).

And preferably the second extraction means are on the bonding face and the second masking means are (directly) on the second extraction means.

As a light source it is possible to choose an extracting optical fiber, with a lateral emitting 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, that is to say 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 5 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 the collimation means if present) and the first coupling portion (respectively the second coupling portion) is less than or equal to 5 mm and even to 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 emitting diodes of 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). As first lamination interlayer and better all lamination interleaves, it is possible to choose in particular a thermoplastic sheet of ethylene vinyl acetate (EVA) or polyurethane (PU), 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 interlayer lamination is for example submillimetric, in one or more sheets at the assembly. The first lamination interlayer (and better all lamination interleaves) can be clear, extraclear, and neutral in color. The first laminating interlayer is preferably chosen from EVA and PVB. It is preferred that each lamination interlayer has a blur (conventionally measured in a hazemeter) of at most 1.5% and even at most 1%, for example a EVA or PVB. This reduces the diffusing nature between the extraction patterns, in the transparent area or zones. For EVA or PVB n3 (n3) typically is around 1.49. The first optical isolator (and preferably the second) is preferably a planar element (or following the curvature of the first glazing). It may be preferably continuous but may be in several pieces, of the same material, or even of different material. The first optical isolator (respectively the second optical isolator for the second object) may be an element (film) reported or a layer deposited (a deposit). In a first embodiment, the first optical isolator according to the invention comprises (better consists of) a first fluoropolymer-based film, better fluoropolymer in particular with a thickness e2 of at least 600 nm, better micron and even with at least 10pm or 50pm and (especially for the second object) preferably the second optical isolator according to the invention comprises (better consists of) another fluoropolymer-based film, better fluoropolymer including thickness e2 d ' at least 600nm, better micron and even at least 10pm or 50pm and identical to the first fluoropolymer film. The low index fluoropolymer film allows a simple implementation, a flexibility of design (by simple cutting of the film) and for any size (large area included). The first lamination interlayer, preferably made of EVA, provides a mechanical strength of the first film for a satisfactory optical contact. It is preferred to distinguish in the final product, the low index fluoropolymer film (assembled via the first spacer) a layer or deposition of fluoropolymer, deposited by liquid. A fluoropolymer layer requires the use of special solvents and adhesion can be very problematic. For the lamination, it is possible to use a conventional thermal cycle and even better that used for laminated glazing containing plastic films (polyethylene terephthalate, PET etc.). Preferably, n2 may be less than or equal to 1.45 or even less than or equal to 1.4. The first optical isolator preferably consists of the first low index film. For simplicity, the first low index film extends over the entire first lamination interlayer itself extending substantially over the entire first glazing possibly being set back from the first slice, for example absent in the anti-scratch zone. aforementioned mixture. Preferably, the first lamination interlayer (and even the first low index film) is set back from the first wafer, leaving a free peripheral zone (or band), remaining in contact with the air. The support of the first light source (in particular a PCB or a PCB support) can be arranged opposite this peripheral zone. The first fluoropolymer film (and optionally the second) may be based on or even one of the following materials: - perfluoroalkoxy PFA, in particular n2 of about 1.3 - poly (vinylidene fluoride) PVDF, in particular of n2 about 1.4 - ethylene chlorotrifluoroethylene ECTFE - ethylene tetrafluoroethylene ETFE, more precisely poly (ethylene-cotetafluoroethylene, especially n2 about 1.4 - the copolymer Ethylene Propylene perfluorinated FEP or (Fluorinated Ethylene Propylene in English) in particular n2 of about 1.3 - PTFE polytetrafluoroethylene including n2 of about 1.3, but which is the most difficult to roll ETFE is preferred because it is the easiest to laminate on the first thermoplastic lamination interlayer It is preferred that it has a blur of at most 2% FEP may be preferred for its lower refractive index or a lower blur of at most 2% with acceptable rolling.

There are polysiloxanes as another low index but their mechanical properties are insufficient. A fluoropolymer film is readily available from 50 μm. For better glass assembly, the first low index film may have major surfaces treated by adhesion promoter surface treatment, preferably corona treatment. If the second optical isolator is distinct from the first, it is also preferred to choose an identical low index film or the like. In a preferred embodiment of the first object, one can have the following sequence on the thickness of the glass unit in a zone with first and second congruent extraction surfaces: first glazing / first diffusing layer extraction means first masking means in an opaque or reflecting layer preferably congruent with the first extraction / first interlayer laminating means (preferably EVA) / first optical isolator in low film index / second laminating interlayer interlayer (preferably EVA) / second masking means opaque or reflecting layer preferably congruent with the first masking means / second diffusing layer extraction means congruent with the first extraction means / second glazing, and even in particular the first and second light sources are on the same side (and even first and second slices aligned), better sets of e diodes. In a preferred embodiment of the second object, one can have the following sequence on the thickness of the glass unit in a zone with first and second extraction surface facing: first glazing / first diffusing layer extraction means / first laminating interlayer (preferably EVA) / first optical insulator in low index film / central interlayer (preferably EVA) / first masking means in opaque layer (full face) or even reflective, preferably coating on central spacer / (other central spacer) / second optical insulator in low index film / second laminating interlayer (preferably EVA / second extraction means in diffusing layer / second glazing and even preferably with the first and second light sources on the same side (and even first and second slice aligned), better sets of diodes.

In another embodiment of an optical isolator according to the invention, the first optical isolator comprises (better consists of) a first porous silica layer with a thickness e2 of at least 400 nm located for the first object: on a main face of a third transparent glass, mineral glass, oriented side internal side - for the second object: on the inner side. In addition, the second optical isolator may preferably comprise (better be made of) a second porous silica layer of thickness e2 (of at least 400 nm).

For the first object, the first optical isolator may comprise, on a main face of a third transparent glass oriented on the inner side side, made of mineral glass, a first porous silica layer with a thickness e2 of at least 400 nm and preferably coated with a first transparent and inorganic protective coating, which is preferably a silica layer of thickness e4 greater than 50 nm and preferably greater than 100 nm and with a refractive index n4 of at least 1.4 to 550 nm. And the glazed assembly can also comprise, on another main face of the third glass substrate oriented side bonding side, a second layer of porous silica with a thickness e2 of at least 400 nm forming second optical isolator coated with a second inorganic and transparent protective coating, which is preferably a silica layer with a thickness e4 greater than 50 nm and preferably greater than 100 nm and with a refractive index n4 of at least 1.4 to 550 nm. n2 (in the entire visible spectrum) can be at most 1.35, preferably at most 1.25 and even less than 1.2. It is the same for n'2. It is possible to use only the first porous sol gel layer with its protective coating (preferably) but, given the millimeter thickness of the central glass 1 ", the path of the guided radii is increased and this can reduce the extraction efficiency (and even more rays that can be absorbed by the first opaque masking means) .W02008 / 059170 proposes to use a porous layer low index as optical isolator in a diode-illuminated laminated glazing.This layer optically isolates the first glazing of the second outermost tinted glazing The manufacturing conditions described by adjusting e2 (e'2) can be used for optical insulation taking into account the skin thickness, it is preferred that - when n2 (n'2) is less than or equal to 1.3, e2 (e'2) is at least 600nm, - when n2 (n'2) is less than or equal to 1.25, e2 (e'2) is at least 500nm when n2 (n'2) is less than or equal to 1.2, e2 ( e2) is at least 400nm.

For security we choose e2 (e'2) of at least 600nm and even at least 700nm or even at least 800nm. The porous silica layer may be a compact stack of silica nanoparticles, for example obtained by the sol-gel route, or preferably a silica layer comprising a silica matrix (otherwise known as a silica network) containing pores and preferably obtained by sol-gel route. Particularly preferred is a porous layer having a solid (substantially) continuous phase, thereby forming the dense walls of the pores, rather than a solid phase mainly in the form of (nano) particles or crystallites.

To manufacture the porous gel sol layer, there are various porogenic agents. The document EP1329433 thus discloses a porous silica layer prepared from a tetraethoxysilane sol (TEOS) hydrolyzed in an acid medium with a pore-forming agent based on polyethylene glycol tert phenyl ether (called Triton) at a concentration between 5 and 50 g / I. The combustion of this pore-forming agent at 500 ° C. frees the pores. This non-localized pore-forming agent is of indeterminate form and spreads uncontrollably through the structure. Other known porogenic agents such as micelles of cationic surfactant molecules in solution and, optionally, in hydrolysed form, or of anionic, nonionic surfactants, or amphiphilic molecules, for example block copolymers. Such agents generate pores in the form of small-width channels or more or less round pores of small size between 2 and 5 nm. A porous silica layer obtained with a particulate pore-forming agent is preferred, such as polymeric beads, which in turn allows better control of the pore size, in particular access to larger sizes, better control of the pore organization in particular. a homogeneous distribution, as well as a better control of the pore rate in the layer and a better reproducibility. The polymeric beads may be a polymeric core and a mineral bark. The smallest characteristic pore size may be even more preferably greater than or equal to 30 nm and preferably less than 120 nm better than 100 nm. And preferably also, the largest characteristic pore size may be even more preferably greater than or equal to 30 nm and preferably less than 120 nm better than 100 nm. The largest dimension factor divided by smaller dimension can be less than 2 and even 1.5. In a preferred embodiment, the porous silica layer is a silica matrix with closed pores (preferably defined by the walls of the silica) in volume, and in particular an open porosity at the surface, in particular closed pores of substantially oval or substantially spherical, each of smaller dimension of at least 30 nm and larger dimension of at most 120 nm, preferably between 75 nm and 100 nm.

The porous, closed pore volume layer is mechanically stable, it does not collapse even at high pore concentrations. The pores can be easily separated from each other, well individualized. The pores may have an elongated shape, especially in rice grain. Even more preferentially, the pores may have a substantially spherical or oval shape. It is preferred that the majority of the closed pores, or even at least 80% of them, have a given substantially identical shape, in particular elongated, substantially spherical or oval. The majority of closed pores, (even between 80% or even 95% or better all), may preferably have a smaller characteristic dimension, and preferably a larger dimension also, between 75 and 100 nm. In the porous layer, the pores may be of different sizes, although this is not preferred. The porosity may be further monodisperse in size, the pore size being then calibrated to a minimum value of 30 nm, preferably 40 nm, more preferably 50 nm and preferably less than 120 nm. The volume fraction of pores may preferably be greater than 50% and even 65% and preferably less than 85%. It should be noted however that the maximum volume fraction of 74% is the theoretical maximum value applied to a stack of spheres of identical size, whatever it may be. The Applicant has found that applying (directly) the first porous silica layer on the first lamination interlayer on its optical isolator function was affected. It is likely that pores, especially those open at the surface, of the porous layer are polluted at the time of manufacture and that pollutants remain trapped in the pores even after heat treatment (for lamination). Also advantageously, the first porous silica layer is coated with a first transparent and inorganic protective coating, which preferably has a silica layer of thickness e4 greater than 50 nm and preferably greater than 100 nm and even 180 nm, and with a refractive index n4 of at least 1.4 to 550 nm (better at X1, X2, X3 X4 and even in the visible set). In particular, the transparency of the protective coating makes it possible to preserve the vision. In tests, the Applicant has found that with a thickness of less than 50 nm the pollutant barrier of the porous silica layer was insufficient. From 80nm of protective coating in silica layer there is a good improvement of the guidance, 120nm further improved guidance and 230nm excellent guidance. The dense silica layer has a solid phase (essentially) continuous, rather than a solid phase mainly in the form of (nano) particles or crystallites.

A dense silica layer (in particular not intentionally rendered porous) conventionally has a refractive index at 550nm of the order of 1.45 if deposited by physical vapor deposition and between 1.42 and 1.46 if obtained by gel sol. The glazing with the gel sol layer (and the protective coating) 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 porous silica (and the protective coating) can be mineral or even organic mineral hybrid. The silica can be doped. The doping elements may preferably be chosen from Al, Zr, B, Sn, Zn. The dopant is introduced to replace the Si atoms in a molar percentage that can preferably reach 10%, even more preferably up to 5%. The first (second) layer of porous silica may be a sol-gel layer and the first (second) protective coating be a sol-gel silica layer.

Their manufacture comprises the following successive steps: - (1) on the first face of the glazing (third glazing for the first object, typically first glazing for the second object), the application in a first layer of a first precursor sol of the constituent material of the silica layer of the first doped or non-doped optical isolator, in particular a hydrolyzable compound such as a halide or a silicon alkoxide, in a first solvent, in particular aqueous and / or alcoholic solvent, mixed with a solid polymeric pore-blowing agent particulate form in particular in aqueous suspension, the particles preferably being greater than or equal to 50 nm in size, preferably between 75 and 100 nm, (2) drying of the layer, called the dried layer, - (3) on the dried layer, the application in a second layer of a second precursor sol of the constituent material of the silica layer forming the protective coating, doped or otherwise, in particular a hydrolysable compound such as a halide or a silicon alkoxide, in a second solvent, in particular aqueous and / or alcoholic solvent, (4) a heat treatment at least 450 ° C, - (5) cooling preferably up to room temperature - (6) lamination with the first lamination interlayer. Preferably, the first sol is TEOS in an aqueous solvent and the polymer particles are in aqueous suspension. The manufacture of the porous silica layer, serving as optical isolator between a guide glass and a tinted glass of a luminous laminated glazing, is described in WO2008 / 059170. In a preferred embodiment of the first object, one can have the following sequence on the thickness of the glass unit in an area with first and second extraction surface facing: first glazing / first diffusing layer extraction means first opaque or reflective layer masking means preferably congruent with the first lamination extraction / first interlayer means (preferably PVB) / (first protective coating (silica layer)) / first optical insulator in a silica layer porous / central glass (especially thin) / second optical insulator in porous silica layer / (second protective coating (silica layer)) / second laminating interlayer (preferably PVB) / second masking means in an opaque or reflective layer of preferably congruent with the first masking means / second diffusing layer extraction means congruent with the first means of ex traction / second glazing and even preferably with the first and second light sources on the same side (even first and second slice aligned), better sets of diodes. In a preferred embodiment of the second object, one can have the following sequence on the thickness of the glass unit in an area with first and second extraction surface facing: first diffusing extraction means (frosted or layer ) / first glazing / first optical isolator in porous silica layer / (first protective coating (silica layer)) / first laminating interlayer (preferably EVA) / first masking means in opaque or reflecting layer, preferably covering covering and on the first spacer / (second protective coating (silica layer) / second optical insulator in porous silica layer / second glazing / second diffusing extraction means (frosted or layer) .The outer (or outer) face is preferably free (coating, covering) except possibly the first extraction means (respectively second extraction means). the invention is glazed, a monolithic glass sheet. Preferably the first glazing, tempered mineral glass, is from 4 to 6.5mm thick, the second glazing, tempered mineral glass, is from 4 to 6.5mm thickness, in particular the same. When the first (respectively second) extraction means are in enamel and even the first (respectively second) opaque masking means cooking to form the enamel can be followed by a (single) quenching operation. The second glazing may also be made of organic glass (preferably rigid, semi-rigid) such as polymethyl methacrylate (PMMA), preferably with PU laminate interlayer, a polycarbonate (PC), preferably with PVB interlayer. 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" process making it possible to obtain a perfectly flat and smooth sheet, or by processes drawing or rolling. Examples of glass materials include float glass (or float glass) of conventional soda-lime composition, optionally hardened or tempered thermally or chemically, 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 "DIAMOND" 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 less than or equal to 7%, or even less than or equal to 4%, at 550 nm or preferably over the entire visible range.

Each optically coupled slice can 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. The thickness of the optional third glazing is preferably between 2 and 19 mm, preferably between 2 and 4 mm. Equal thicknesses may be preferred for the three glasses (and even smaller than with two glasses), for example 4 mm approximately / 4 mm. about / 4mm approx.

The second (third) glazing may preferably be of identical size to the first. For the first (respectively second and even third) inorganic glass pane, n1 (n1, n "1) is typically 1.50 to 1.53 In static operation, the first and / or second surface of extraction 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 for signaling, and preferably at pedestrian access doors and / or or same vehicle incorporating a first luminous glazed assembly as described above and even a second glazed assembly as previously described (with identical or distinct extraction surfaces of the first set), first and second sets spaced a few mm apart and between two carriers.

After installation, the first (and second) bright glazed unit is an access door (communication): - between the outside and a building, - between two areas of a building, in a showroom and / or restricted or paying access - within a public transport station (metro, train), - between two external zones (outside access of a tramway, a park, a tourist attraction, a cinema outdoor, in a toll zone) - inside or outside of a land vehicle (train ..), aquatic (boat) or air. Preferably, each side is controlled, in a common manner preferably switches at the same time.

The access door may be in one or two (or more) identical luminous glazed 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, each glazed assembly (ventail) movable about 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 low post and / or high horizontal) and fixed laterally to a bearing (block fixed or placed on the ground). The ground is the firm ground or ground 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 recognizable, particularly for persons with reduced vision. The invention applies more broadly to form signals and / or light decorations (or even functional lighting) of distinct colors at a given moment on two distinct sides of the glass unit, each signaling or decor being switchable. independently preferably automatically or manually by the user (ambient light etc). It applies to any glazed unit between a first accessible space (with a pedestrian or vehicle traffic) and second accessible space (with a pedestrian or vehicle traffic), for example a partition, a window or even a floor slab. on the floor ... The mounting profile of the glass unit (or attachment of the first source and / or the second source) may be a U or E with the central branch of the E spaced from the assembly laminated less than 1mm or even extending in a groove between the first and second glazing.

Preferably within the first extraction surface with several extraction patterns (diffusing, by a discontinuous layer including white etc), the maximum distance between neighboring patterns (discrete, character, decorative ..) is at most 1cm and even at most 5mm (and at least 1mm preferably). Naturally, there may be on the first glazing a plurality of first extraction surfaces, in particular in horizontal or vertical strips, preferably spaced at least 2 cm, 5 cm, even at least 10 cm preferably to leave a zone transparent (also without a second extraction surface with its masking), in the clear glass (outside peripheral mounting area, anti-mix or hot spots). Naturally, there may be on the second glazing a plurality of second extraction surfaces, in horizontal or vertical strips, spaced at least 5 cm, preferably 10 cm to leave a transparent area (without second extraction surface with its masking ), in the clear glass (outside peripheral mounting zone, anti-mixing or hot spots) Preferably within the second extraction surface with several extraction patterns (diffusing, by a discontinuous layer including white), the distance maximum between neighboring patterns (discrete, character, decorative ..) is at most 1cm and even at most 0.5mm. Several second extraction surfaces may be in the area covered by the first extraction surface. Preferably: the first (or second) extraction surface has a width of at least 3 cm, 5 cm or even 10 cm, the first (or second) extraction surface has a surface area of at least 25 cm 2 ( 5x5cm2) or even at least 100cm2 (10x10cm2), of size to be visible at least 1m or even 2m, 10m, - and / or the first (or second) extraction surface has a global transparency (vision at through the glazed assembly), with patterns of pitch preferably in a range of from 2 mm to 4 mm - the first and second extraction surfaces are congruent, and in preferably congruent extraction pattern (s), - the first (respectively second) extraction surface can occupy substantially all the glass clear or be in areas separated by a transparent area. 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 gantries with double one-way signaling in a metro station - FIGS. 5, 7, 7 ', 8, 9 are diagrammatic (sometimes partial) views in section of luminous glazed assemblies in several embodiments of the invention; FIG. 2a shows in a variant the use of reflecting means on the extraction means, - Figures 3a, 3b, 3c, 3d, 3e are mounting variants, - Figures 6 and 6 'show a diagrammatic and partial front view of a sliding entry door with assembly (s) Glazed glass (s) according to the invention, - Figures 8a, 8b show a front view of the outer side extraction surfaces of the first glazing variant of Figure 8. The figures are not to scale. EXAMPLES FIG. 1 shows a series of four access portals 1000 in a metro station between the ticket office hall 1001 and the rowing space 1002 (schematized by rails) each with two independent luminous signals (single view, hall / ream 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. Three access gantries comprise between two carriers 70, for example parallelepipedal and metallic, two leaves 100 of rectangular type (by length according to the vertical, width of less than 450 mm preferably) spaced by qq cm, the lateral edges here having a radius curvature away from the bearing. Side slices (excluding margin) and the slice opposite the bearing are free, straight, polished or diffusing. The fourth (right-most) gantry has a single leaf linked to a bearing (possibly against a wall, glazed elevator etc.).

Each leaf 100 comprises a first preferably tempered glazing (flat or curved and of any possible general shape) with a first slice, main faces called inner face and laminated outer face with a second glazing (planar or curved and of any general shape possible , identical to the first glazing) with a second slice and principal faces called bonding face and outer face, of identical size and even congruent with the first glazing (same shape, same size coincidence of the faces and slices). The first and second slices (in the bearing) are on the same side, aligned or shifted by less than 1mm. At time t0, the first and third gantries each comprise on the right-hand side of the hall a green signaling arrow s1 oriented towards its leaves 100 and each have in their clear window (visible area) a green luminous surface next to the hall, in a horizontal band 50 partially covering the first glazing left transparent elsewhere, which appears as substantially uniform (remote) and preserves in this band 50 a global transparency by the use of a first network of discrete scattering patterns covering the clear of glass, discs of subcentimetric width and spaced with a subcentimetric pitch, masked by a first network of discrete masking patterns opaque on the inner face and in congruence (or reflective preferably substantially congruently), preferably directly on the first network diffusing patterns arranged on the inner face. If the ticket or pass is invalid, the green surfaces can turn red and even blink on a short time (less than 10 s) for example 1s to 5s and become green again. The second gantry 100 (starting from the left) has on the right door on the hall 1001 side a red signaling arrow s2 and presents in the glass clear a red luminous surface next to the hall, in a here horizontal strip 50 partially covering the second glazing left transparent elsewhere which appears to be substantially uniform (at a distance) and preserves overall transparency in this band 50 by the use of a (second) network of discrete diffusing patterns covering the glass clear, for example discs of subcentimetric width and spaced at a subcentimetric pitch, masked by a (second) network of opaque and congruent (or preferably substantially congruent) discrete masking patterns on the bonding face, preferably directly on the (second) array of patterns diffusers arranged on the gluing face. On the other side (not visible), at time tO, the first and third gantries each have on the left side of the car 1002 a red signaling arrow and each have in their clear glass a red luminous surface ream side , in a horizontal strip partially covering the second glazing left transparent elsewhere and congruent with the first glazing side strip, which appears as substantially uniform (at a distance) and preserves overall transparency by the use of a second network of discrete diffusive patterns covering the glass clear, discs of subcentimetric width and spaced one step in congruence with the first pattern of diffusing patterns and masked by a second network of discrete masking patterns opaque or reflective on the bonding face and in congruence with the second grating of diffusing patterns, preferably (directly) on the second network of diffusing patterns arranged on the ace of collage. On the other side, at time tO, the second gantry comprises on the left carrier side row a green arrow signaling oriented to its leaves which each have in their clear side of the window rame a green luminous surface ream side that appears as substantially uniform (remotely) and preserves overall transparency by the use of a first network of discrete scattering patterns covering the glass clear, such as discs of subcentimetric width and spaced with a subcentimetric pitch. Each diffusing pattern, preferably white, makes it possible to extract red or green light on the outer or outer side resulting from radiation emitted and guided by first and second light sources (two sets of diodes per leaf or extracting optical fibers). hidden 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 following figures 1a, 1b, 1c, 1d show further examples of light areas on the leaves and the arrangement of the first and second light sources. The figure shows a front view of a winglet wing on the right and left side on the left. Hall side, there are first luminous areas in three horizontal and rectangular bands namely high band 50a, central band 50b and low band 50c, spaced by transparent square or rectangular strips 17 for example 10 cm high (here width) . Row side we also observe second light areas in three horizontal bands 50'a 50'b 50'c and rectangular congruent (same size and same shape) to the first light areas spaced by transparent strips 17 'for example 10 cm in height (here width). The first vertical high band 50a has on the inner face: a first network of spot diffusive patterns 5, patterns of width h of at most 5 mm and spaced apart by a pitch p1 of at most 5 mm, and a first network of occasional opaque patterns (not visible), patterns of width of at most 5 mm and spaced at a pitch p'i of at most 5 mm congruent with the first network 35 of diffusing patterns and (directly) above, with a first pattern 5a remote from W of the first slice 12 (VV of about 3 cm for example) as for the other two strips - a first diffusing set of characters 5b such as a LOGO, each of width 13 of at most 5 cm spaced from one not p3 of at most 1cm surrounded by the first network of scattered scatter patterns 5 and a first opaque set of characters (not visible) such as a LOGO, each of width 1'3 of at most 5 cm spaced from one not p3 at most 1cm congruent with the first set of scattering characters and (directly) on - a first decorative diffusing pattern 5c (two concentric circles) of width (and same external diameter here) 12 cm and not more than 5 cm surrounded by the first network of point scattering patterns and a first opaque pattern (concentric circles) of width 1'2 centimeter and at most 5 cm congruent with the first decorative diffusing pattern and (directly) above. The second high band 50'a is congruent with the first high band 50 and has on the bonding surface: a second network of spot diffusing patterns, patterns of width m1 of at most 5mm and spaced a step r'l of not more than 5mm, congruent with the first pattern of diffusing patterns, and a second pattern of opaque spot patterns, patterns of width not more than 5mm apart and spaced at a spacing of not more than 5mm congruent with the second network of diffusing patterns and (directly) above (and congruent to the first network of opaque patterns), - a second decorative diffusing pattern of width cm 2 cm and at most 5 cm (concentric circles) surrounded by the second pattern of diffusing patterns punctually congruent with the first decorative diffusing pattern and a second opaque decorative pattern with a width of 2 cm and a maximum of 5 cm congruent with the second scattering pattern and (directly) above (and congruent with the first opaque decorative pattern e), - a second diffusing set of characters such as a LOGO, each of width m3 and not more than 5 cm spaced apart by a step r3 of at most 1 cm, surrounded by the second network of scatter patterns, congruent with the first set of diffusing characters (thus inverted LOGO) and a second opaque set of characters such as a LOGO each of width m'3 and not more than 5 cm spaced apart by a step r'3 of not more than 1cm , congruent with the second set diffusing and (directly) above (and congruent with the first set opaque) The first central band 50b has on the inner face: - a first network of scattering patterns 5 ', patterns of width of at most 5mm and spaced with a pitch p1 of at most 5mm, and a first network of opaque spot patterns, patterns of width of at most 5mm and spaced at a pitch pl of at most 5mm congruent with the first pattern network diffusing and (directly) above - a first diffusing set of characters 5'b such that a LOGO, each of width 13 of at most 5 cm spaced from a pitch p3 of at most 1 cm surrounded by the first network of point scatter patterns and a first opaque set of characters such as a LOGO, each of width 13 d at most 5 cm apart at a pitch p3 of at most 1 cm congruent with the first diffusing assembly and (directly) above. The second central band 50'b is congruent with the first central band. It comprises on the bonding surface: - a second network of scattering patterns 5 ', patterns of width mi of at most 5mm and spaced a step r'i of at most 5mm, congruent with the first pattern network diffusers, and a second network of discrete opaque patterns, patterns of width m'i of at most 5mm and spaced at a spacing of not more than 5mm congruent with the second pattern of diffusing patterns and (directly) above (and congruent to the first network of opaque patterns), - a second diffusing set of characters 5'b such as a LOGO, each of width m3 and not more than 5 cm spaced apart by a step r3 of at most 1 cm, surrounded by by the second network of scatter patterns, congruent with the first scattering set of characters (thus inverted LOGO) and a second opaque set of characters such as a LOGO each of width m'3 and at most 5 cm spaced from a step r'3 of at most 1cm, congruent with the second set diffusing and (directly) above (e) t congruent 30 with the first opaque set). The first low band 50c has on the inner face: a first network of scatter patterns 5, patterns of width of at most 5 mm and spaced with a pitch pi of at most 5 mm, and on the inner face a first network occasional opaque patterns, patterns of width of not more than 5mm and spaced at a pitch pl of at most 5mm congruent with the first pattern of diffusing patterns - a second diffusing set of characters 5b such as a LOGO, each of width m3 and at most 5 cm spaced from a step r3 of at most 1cm, surrounded by the second network of scatter patterns point congruent with the first set of diffusing characters (so inverted LOGO) and a second opaque set of characters such as a LOGO each of width m'3 and not more than 5 cm spaced by a step r'3 of not more than 1cm, congruent with the second set diffusing and (directly) above (and congruent with the first opaque set). The second low band 50'c is congruent with the first low band and has on the bonding surface a second network of scatter patterns punctual pattern width of at most 1cm and spaced p'i not more than 1cm, some being congruent with patterns of the first network of scatter patterns and others in the area covered by the logo (here shown by dashed transparency) so as to hide a second network of opaque patterns point, width patterns h of at most 5 mm and spaced at a pitch pl of at most 5 mm congruent with the second network of diffusing patterns and (directly) above the discrete patterns are for example geometric, such as disks (or squares rectangles etc) . For a horizontal band with a length of 256mm and a width ("height") of 144mm, the discrete patterns are 1mm diameter discs, spaced 4mm apart. Each character of the "Logo" pattern is spaced (surrounded) by 7mm of the disks. The Logo pattern is 100 mm long and 25 to 35 mm wide depending on the type. The large circle of the decorative pattern has an internal diameter of 25 mm and is spaced (surrounded) by 7mm of the discs. In the light band, there is an overall transparency (vision through the glass unit).

By replacing the opaque patterns with reflective patterns, their width may be larger and overflow on the glazing preferably at most 2mm and even less than 1mm. For each single-vision light band, an alignment of diodes 4, some to t0 or t 'emitting in red and others to t' or t0 in green (or white or other color, blue etc), in form of a bar here individual to the common to the three bands. The PCB 41 support is individual for each glazing or is wider and is common and coupled to the first portion of the first glazing and the second portion of the second glazing. In transparent areas devoid of scattering patterns, it is preferred not to guide light, omit the diodes or they are not fed. A single PCB may be common to the three bands high, central, low of the first glazing (and / or second glazing).

A light zone may comprise a fine pattern such as an arrow or be closed and hollowed out (geometric outline, etc.). The luminous zones may be of any shape and extent, for the signaling and / or the decoration.

FIG. 1c shows another example of single-sided double-signage double-signage light zones with high band, central strip and two signaling arrows at the bottom, or two "arrows" between transparent strips 17. The high band 50a (hall side as shown in FIG. rake side not visible) differs from that of Figure 1a by the absence of LOGO and decorative pattern. The central band 50b (hall side as rowing side not visible) differs from that of Figure 1c by the absence of LOGO. In the lower part, is formed on the inner face (respectively bonding, in congruence) - a first light band 50c V-shaped rotated 90 ° (point away from the light sources, the coupling portion 13 of the first glazing) formed by a set of first scattering patterns 5 coated with a set of first opaque patterns in congruence centimeter width, for example 6 cm - a second light band 50d V-shaped rotated 90 °, thinner and less extensive , in pattern scattering full width of at most 3cm. These two "arrows" may be green at t0 like other light bands and red or not lit at t 'like other light bands. For each glazing, a single PCB 41 is used for all the green and red diodes 4. FIG. 1 d shows another example of a double-sided luminous signage (or decoration) by replacing high band, central band and low band by a covering band 50.

As already stated and detailed later for FIGS. 1a to 1d, the diffusing patterns covered with opaque patterns start at a distance W from the optical coupling slice 13, 13 'associated since in this zone (dotted border) is added for the fixing the glazing a mounting profile (metal, rigid plastic, wood ..) for example carrier U-section or PCB diodes and also to hide the hot spots. Opposite slices 14, 14 'are free. As detailed later, it is possible furthermore to provide on the inner face a first anti-mixing peripheral band of red and green colors broad of OD, and it is also possible to provide on the bonding surface a second peripheral band anti wide mixture of D'O . The first (second) glazing with the assembly having side internal face (bonding) opposite the first (second) means of masking: - an absorption (in red and green, even in all the visible) of at least 80% and even at least 90%, - a transmission factor (in red and green, even in all visible areas) of not more than 1% and even 0.5% and / or an optical density of at least 3.

FIG. 2 shows in greater detail a partial cross-sectional view of a glazed unit 200 with a double one-way light zone in a second embodiment comprising: a first glazing unit 1, here of rectangular shape (for example length in the vertical direction); width, for example 250 mm), plan or alternatively curved (tempered), clear silicosodocalcic glass or extraclair tempered, (for example about 6mm including the glass called Planilux of the Applicant, hardened), refractive index n1 d about 1.5 to 550 nm, TL of at least 90%, with a first main face 11 called inner face, a second main face 12 called outer face, a first portion 13 which is vertical in the mounted position and its opposite edge 14 (here singing formed of four slices, the first slice being longitudinal), - a first light source 4, here a set of red and green light emitting diodes 4 aligned on a printed circuit board di t first PCB support 41, a 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 width less than the thickness of the first glazing 1, for example each diode with a width WO of 4 mm, a first extraction surface 50 (preferably adapted for a global transparency) delimited by (the outlines) of the first extraction means 5, 5a, 5b associated with the first glazing here (directly) on the inner face 12, which are a first white discontinuous diffusing layer having a clarity L * of at least 50, which is here a diffusing white enamel containing white mineral pigments and melted glass frit, in the form of first diffusing patterns of variable size (width and / or length), including a network of discrete patterns 5a, 5 adapted for a transpa overall, decorative pattern (s) 5b (here surrounded by the patterns 5 of the network, and / or alternatively a set of characters (LOGO etc.) - first opaque masking means 6, 6a, 6b which are a first opaque layer of black, gray or colored enamel (red, green or other color), enamel containing mineral pigments and melted glass frit, in the form of the first opaque patterns 6 of variable size, congruent and (directly) on the first scattering patterns, therefore a network of discrete opaque patterns 6, 6a, pattern (s) 6b on the decorative pattern (s) and / or alternatively a set of opaque characters on a set of diffusing characters (LOGO etc. ). The first diffusing pattern 5a is distant from W of the first slice 13. The widest pattern 5b is a decorative geometric pattern, for example, of width 3cm. The discrete patterns 5 are for example geometric, like disks For a first extraction surface 50 of length 256mm (depending on the horizontal), the discrete patterns are for example disks of diameter 1mm, spaced 4mm. The decorative pattern 5b is spaced (surrounded) by 7mm of the discs 5. In a first example of manufacture, is applied by screen printing on the inner face 11 (or an external variant) a first enamel composition, diffusing, so liquid discontinuous to form the weft of the first diffusing patterns 5, 5a, 5b comprising glass frit, white mineral pigment and organic medium, is dried and applied a second liquid composition covering the entire inner face 12 between and on the weft of the diffusing patterns 5, 5a, 5b composition, devoid of glass frit, containing a black mineral pigment (alternatively gray or colored) and an organic medium. The whole is dried and cooked and the second cooked composition is easily removed between the diffusing units. More specifically, the first enamel composition containing a glass frit and TiO 2 pigments (sold under the reference 194100 by FERRO) and an organic medium (sold under the reference 801022 by the company Prince Minerais) in an amount of allowing to obtain a viscosity of 200 Poises (measured under the above conditions). The average (wet) thickness of the deposited first layer is 35 μm.

Glass side (external side) the white color is defined by L = 63,08, a = -1,92, b = 0,69 (after cooking). Side masking (internal side) the white color is defined by: L = 82.35, a = 1.24, b = -0.46 (after cooking).

The optical density of the white diffusing enamel is 0.9 (glass side) after baking. The screen-printing screen for the first layer consists of a fabric of polyester threads of 80 μm in diameter comprising 43 threads / cm, which makes it possible in particular to form the plurality of discrete patterns in the form of discs 1 mm in diameter spaced 4 mm apart, a 2cm wide decorative pattern such as a disc or symbol etc. The screen printing screen for the second layer consists of a 48 μm diameter polyester yarn fabric comprising 90 threads / cm for a full-face deposit.

The second liquid composition contains a black pigment sold under the reference TDF8874 by the company Ferro) and an organic medium (sold under the reference 801022 by the company Prince Minerais) in an amount to obtain a viscosity of about 90 Poises ( measured using a Haake VT550 viscometer, rotational speed: 23.2 rpm).

The average (wet) thickness of this layer of pigments deposited on the first layer is equal to 16 μm. Masking side (internal side) the black color is defined by: L = 25.73, a = 0.55, b = -1.63 Then, the first glazing thus coated is introduced into a drying device equipped with infrared lamps operating at a temperature of the order of 145 to 155 ° C to remove the organic medium and consolidate the layers. The first coated glazing is then heated to a temperature of 655 ° C in an oven so that the glass frit melts and forms the enamel that encapsulates the pigment particles.

Non-fixed pigments are removed by brushing and washing with water. The (wet) thickness of the first composition is greater than the second composition in order to better preserve the white color on the glass side (outer face). On the first coated glazing thus obtained, the clarity L * of the assembly is measured at the level of the patterns appearing in black (through the glass on the external or opposite sides) and the white patterns (through the glass on the outer side or opposite side).

On the glass side (external side) the color of a double white + black pattern is defined by: L = 61.88, a = -2.17, b = 0.12. The TL is 0.15%. Masking side (internal side) data on color, opacity and transmission are listed in the following table: White enamel / enamel black masking side L * 25.73 to 0.55 b -1.53 optical density 2 , 8 T (green, λ = 525 nm) 0.12 T (red, λ = 625 nm) TL 0.12 0.15 Table la In a second example of manufacture, the black pigment is replaced by a pigment based on red ( "Red brown") absorbing green. More specifically, the second liquid composition contains a red-brown pigment which is iron oxide (sold under the reference VV33 / 19/4 by the company Prince Minerais) and an organic medium (marketed under the reference 243 by the company Prince Minerais) in an amount to obtain a viscosity of the order of 90 Poises (measured using a Haake VT550 viscometer, speed of rotation: 23.2 rpm). The average (wet) thickness of the pigment layer deposited on the glass is equal to 15 μm (45 μm for the first white composition). On the masking side (inner side) the color, opacity and transmission data are listed in the following table 2a: enamel (masking side) Red L * 27.6 to 51.5 b 40.6 Optical density 2, 07 T (λ = 525 nm) 0.6 T (λ = 625 nm) Table 2a On the second glazing a second congruent masking pattern 35 with the first red masking pattern, and colored red absorbing, for example with a pigment, is selected blue such as cobalt blue or other known pigments. In a variant, the white diffusing enamel has, for example, the following composition: between 20 and 60% by weight of SiO 2, 10 to 45% by weight of refractory pigments, including TiO 2, in particular of micron size - no more 20% by weight of alumina and / or zinc oxide. Examples of enamel composition may be enamel under the name Ferro 194011 marketed by FERRO, reference AF5000 sold by JM, reference VV30-244-1 marketed by 10 Pemco. The inner face 11 and the first opaque patterns 6, 6a, 6b are (directly) covered by: a first laminating interlayer 3 in thermoplastic material here submillimeter EVA, in a sheet of 0.38 mm, transparent even clear, Having (only) a blur of at most 1.5%, and even 1% and of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 in the visible spectrum (here n3 equal to about 1.49) - a low index film 2, made of fluoropolymer, forming the first (and here only) optical isolator, preferably ETFE or FEP and having a thickness 50 μm having first and second main faces 21, 22 treated with corona treatment, blurred between 1.5 and 2%, such as the product called Norton ETFE Saint Gobain Performance Plastics blur between 1.5 and 2% refractive index n2 equal to 1.4 or Norton FEP of the company Saint Gobain Performance Plastics blur between 1.5 and 2% refractive index 25 n2 equal to 1.34 approximately, fi 1m in adhesive contact with the first lamination interlayer 3 by its face 21, - a second lamination interlayer 3 'of thermoplastic material, preferably transparent, clear EVA, identical (nature, thickness, a sheet) to the first interlayer of lamination, in adhesive contact with the face 22 of the low film index 2, and of refractive index n3 - a second glazing 1 ', made of mineral glass, identical to the first glazing congruent and in coincidence, with a main bonding face 11' 3 ', a so-called outer opposite face 12', a second wafer 13 'and its opposite wafer 14', with a refractive index n1 of about 1.5 to 550 nm, of TL of at least 90%, (with n3 such that n3-n1, in absolute value, is less than 0.05 in the visible spectrum (here does not equal about 1.49).

The glazed assembly 200 further comprises: - a second light source 4 ', here a set of red and green light-emitting diodes aligned on a printed circuit board said second PCB support 41', source optically coupled to the second wafer 13 ' , the second glazing 1 'guiding the light emitted by these diodes 4' preferably spaced apart (spaced here) by at most 1mm of the second wafer, preferably centered on the second wafer and of width less than the thickness of the second wafer 1 ', 1', for example diode width VV'0 4mm, - in congruence with the first extraction surface 50 (same size, same shape or contours), a second extraction surface 50 'delimited (by its contours) by second light extraction means 5 ', 5'a, 5'b associated with the second glazing, here (directly) on the bonding surface 12', which are a second white discontinuous diffused layer having a clarity L * of at least 50, preferably a white enamel diffusing with white mineral pigments and melted glass frit, here of nature and same thickness (substantially) identical to the first diffusing layer 5, in the form of second diffusing patterns of variable size, chosen from a network of discrete patterns 5 ', 5'a adapted for overall transparency and / or a set of characters / and / or decorative pattern (s) 5'b, here second identical scattering patterns and in congruence with the first diffusing patterns 5,5a, 5b - second opaque masking means 6 ', 6'a, 6'b, which are a second opaque layer of black enamel (alternatively colored red or other color), in the form of the second opaque patterns variable in congruence with the second scattering patterns and (directly) above (the first and second patterns, opaque 6,6 'as scattering 5,5' are all congruent). If the first opaque enamel layer is red, red-based or other green-absorbing color (and / or is of sufficient thickness to absorb it) then the second opaque enamel layer is of a color at less absorbing red for example blue, yellow or green. The manufacture of the second glazing thus coated with a double layer enamel diffusing white / enamel opaque black (or colored) is identical to that described for the first glazing. Between the patterns 5,5 '(zone of transparency 15) the glass unit is transparent (without opaque coating and / or diffusing), with a TL of at least 85%.

Between the first (respectively the second) slice and the first pattern 5 (respectively 5 ') there is a zone 16 here also transparent (without opaque coating and / or diffusing). The following table III gives examples of TL and blur of the transparency zone (external side side) according to the chosen EVA of about 0.38 mm. EVA Blur (%) TL (%) CNC EPDH 2.58 89.3 EVASafe039 from Brigdestone 2 89.7 Table III Blur is measured by Hazemeter.

A single sheet is preferred for each interlayer to reduce blur. Alternatively with two PVB RB41 with a blur of less than 1.5% sold by the company Solutia, in the transparent zone (external side side) the TL is 87% and the blur 2.5% approximately. The first light source 4 is therefore dynamically driven to emit at the instant t0 via a first series of diodes 4 a first main radiation at a first wavelength called X1 and at time t4t0 via a second series of diodes. 4 a second main radiation at a second wavelength called X2 distinct from X1. The second light source 4 'is therefore dynamically driven to emit at the instant t0 via a third series of diodes 4' a third main radiation at a third wavelength called X3 and at the instant t4t0 via a fourth series diode 4 'a fourth main radiation at a fourth wavelength X4 said distinct from X1. At t0: - the first source 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 at X1 'substantially equal to X1, distinct by not more than 10nm or 5nm and with a spectral width at mid-height of less than 30nnn), - the second source emits in the red with X3 in a range from 615nm to 635nm and width spectral range 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 mid-height of less than 30nm) or white. At t ': - the first source emits in red with X2 in a range from 615nm to 635nm and spectral width at mid-height of less than 30nm (and light extracted C2 is red defined by a second main 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 second source emits in green with X4 in a range from 515nm to 535nm and spectral width at mid-height of less than 50nm (and light extracted C4 is green defined by a fourth main extracted radiation at X4 'substantially equal to X4, distinct from at most 10nm or 5nm and with a spectral width at half 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 10nm or 5nm and preferably with a spectral width at mid-height of less than 30nm).

Another configuration is that for example at t3 each source 4, 4 'emits in green or in white. It is also possible for one of the sources to be off (hence the following configurations: red and off state, green and off state, white and off state). To prevent the mixing of the green and red colors, each diode 4 of the first source 4 comprises a collimation optics 42 which provides a narrow emission diagram. Each diode 4 of the first light source 4 is spaced from the first wafer 13 by air at most 1 mm (or less) and at least 80% (better at least 90% and even at least 95%) of the luminous flux emitted by each diode is in an emission cone between -al and al with al = Arsin (n1 * sin (a2)) where a2 = n / 2- Arsin (n2 / n1) and corresponds to the angle of refraction in the first glazing as shown in detail. To prevent the mixing of the green and red colors, each diode of the second source 4 comprises a collimation optics 42 'which ensures a narrow emission pattern. Each diode 4 'of the second light source 4' is spaced from the second slice 13 'by air of imm about (or less) and at least 80% (better at least 90% and even at least 95% ) of the luminous flux emitted by each diode is in an emission cone between -al and al with al = Arsin (n1 * sin (a'2)) where a'2 = 7t / 2-Arsin (n2 / n1) ) and corresponds to the angle of refraction in the second glazing. For n2 = 1.4 (ETFE index) and n1 = 1.5 in the visible spectrum a2 is 21 ° and al of 33 °. For n2 = 1.35 (FEP index) and n1 = 1.5 in the visible spectrum a2 is 26 ° and al of 41 °. As diodes, it is possible to choose the ALMD diodes from Avago company of 4 mm width with 100% of the luminous flux emitted by each diode in an emission cone between -30 and 30 °. In particular, the red diodes called ALMDEG3D-VX002 based on AIInGaP dominant wavelength at 626nm and spectral width between 618nm and 630nm. In particular, the green diodes called ALMD-CM3D-XZ002 based on InGaN dominant wavelength at 525nm and spectral width between 519nm and 539nm. Each PCB support is in bar, rectangular not exceeding the edge of the glass unit and includes alternating red and green LED. 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 °.

Normal luminance of a pattern 5a on the outer or outer side with green or red light is about 100 cd / m2 (+/- 10 cd / m2). 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. Here the glazed assembly 200 is symmetrical on either side of the low index film 3 but the first and second extraction surfaces 50, 50 'with their masking could be offset and / or of distinct size and shape when the first and second second masking means each absorb green and red (being black, gray or sufficiently thick ..). However, congruence is desired when the first masking means are colored brown-red, the second masking means are then for example in blue to absorb green. Alternatively, the first masking means may be a red paint (or green or black), or any color sufficiently thick to absorb. There may be mentioned, for example, the Rouge Opéra paint of the Planilaque Evolution product (black of the Planilaque Evolution product) from the Applicant company. The second masking means may be a green (or red or black) paint. For example, the Green Mint paint of the Planilaque Evolution product from the Applicant Company. In this case, it may be preferable for the first (respectively second) extraction means to be a white paint on the outer (or outer) face.

For example, extrablanc paint Planilaque Evolution product of the applicant company with as the majority pigment of TiO2. The thickness is typically between 40 and 60pm. 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, by a non-aromatic isocyanate, of hydroxylated acrylic resins resulting from the polymerization of an acrylic styrene; mineral materials (pigments and fillers); ) up to 55% by mass. As shown in FIG. 2a, in another variant, the first and second opaque masking means are replaced by first and second reflecting means, for example a discontinuous silver layer, for example by silvering, which can protrude from both sides. another of each scattering pattern 5a, 5'a of at most 1mm. Alternatively these first and second reflecting means 6, 6 'on the other side are placed on the outer and outer faces as well as possibly even the first and second extraction means (diffusing layer, frosted of the first and second glazing). The first and second PCB supports 41, 41 'are in the interior volume 74 of a mounting section 7 of U section, preferably metal (aluminum, lacquered steel or plastic variant (PVC, etc.) or wood comprising: a base 72 facing the edge of the glazed assembly 200 (including the first and second wafers 13, 13 ', the wafers of the low index film and the first and second lamination interleaves 3,3'), metal base 30 here carrying the first and second PCB supports 41,41 '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 'over a width W of 3cm, without being in optical contact so as not to disturb the guidance, The face 12' is a free surface of the luminous glazing, is visible or even accessible (to the touch). assembled in insulating glazing or under vacuum if necessary The first and second slices 13,13 'are straight, polished. Opposite slices 14, 14 'are straight, polished or even diffusing.

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. A polymeric seal can be placed on this opposite edge, for example for more comfort if the leaves are bending too quickly on the pedestrian.

As a variant, for example for a partition or a window, the first and second optical insulators are eliminated and the first and second lamination interleaves, the first and second glazings are spaced apart by air (ideal optical isolator) and assembled (seal ) at the periphery preferably with spacers, for example as a double glazing (insulating glass or vacuum).

Figure 3a shows a partial sectional view of a luminous glazed assembly 300a in a third variant embodiment of the second. Only the differences from the second mode are described. The luminous glazed assembly 300a differs from the glazed assembly 200 as follows. Conventional 4,4 'diodes, for example without collimation optics - and even without (pre) encapsulation - having an emission diagram with large angles for example lambertian emission (for example with angle at mid-height of 120 °). As diodes it is possible to choose the NSSM124T sold by the company NICHIA of width WO 3mm centered on the first wafer.

A first so-called antimelange strip 8 in black enamel or in black paint covers a width DO on the inner face 11 to cut the large angles going to the second glazing 1 '. The first band 8 is shifted from the first masking means 6a and the first extraction surface 50 further away from the first section 13. At the same time, an anti-mixing band and first masking means can be produced with the same composition. OD is at least 0.8 Dmin where Dmin = dl / tan (t / 2-arsin (n2 / n1)) and less than 2cm and even 1cm. dl is the distance between the farthest edge of each diode of the first source and the inner face 11, or formed by a pattern of the first opaque masking means. For dl equal to 5mm, n2 = 1.4 and n1 = 1.5 Dmin is therefore 13 mm. A second so-called anti-mixing band 8 'made of black enamel or black paint covers, on the width DO, the gluing face 11' to cut the large angles going to the first glazing 1. The second strip 8 'is offset from the second masking means 6 'a and the second extraction surface 50 (farther from the second wafer 13'.) If the paint (lacquer) is chosen, it is possible to produce at the same time the second anti-mixing band and the second masking means.

D'O is at least 0.8 Min where D'min = 1 / tan (t / 2-arsin (n2 / n'1)) and less than 2cm. 1 is the distance between the furthest edge of each diode 41 'of the second source 4' and the bonding face 11 ', or formed by a pattern of the first opaque masking means. For 1 equal to 5 mm, n2 = 1.4 and n1 = 1.5 min is therefore 13 mm.

Here first and second identical bands are chosen. These anti-mixing strips are useful especially if n 2 (n 2) is at least 1.2. Furthermore, in order to prevent a lateral leakage of light from the internal volume to the second glazing (radii not coupled to the first glazing), the support 7 is a section section in E rather than a U with a central branch 75 of the E partitioning the light the first light source and the second light source, for example against or spaced less than 1mm from the (aligned) edge of the glass unit. The profile or at least this central branch is of thickness less than or equal to the thickness between the inner face and the bonding face, less than 0.8 mm and even 0.5 mm.

The profile 7 is monolithic where the central branch 75 - reflecting or opaque (absorbing) - is attached (fixed) to the base 72. FIG. 3b shows a partial sectional view of a luminous glazed assembly 300b in a first variant of the third embodiment. Embodiment Only differences from the third mode are described. The luminous glazed unit 300b differs as follows from the glazed assembly 300a. The first and second strips 81, 81 'are each an adhesive tape (Scotch type) such as a polyester support with double-sided glue.

These adhesive tapes 81, 81 'have a free surface because the lamination interleaves 3,3' and the first optical isolator 2 between are set back from the first and second wafers 13,13 'and start from OD (D'O) . The central branch 75 is glued to the base 72 and is spaced less than 1mm from the groove between the glazings 1,1 '. She can enter the throat.

FIG. 3c shows a partial sectional view of a luminous glazed assembly 300d in a second variant of the third embodiment. Only the differences with respect to the first variant are described. The luminous glazed assembly 300d differs as follows from the glazed assembly 300b. The first and second strips 82, 82 'are each an opaque coating for example black (ink etc) on the main faces of the central branch 75 which enters between the glazings 1,1' to the slices of the spacers 3,3 'and of the optical isolator 2. These opaque coatings 82, 82 'have external surfaces bonded to the inner and bonding faces 11, 11' by an optical adhesive or a transparent double-sided adhesive 82a, 82b as a polyester support with a double-sided acrylic glue as the product called D9605 from the company NITTO. Figure 3d shows a partial sectional view of a luminous glazed assembly 300d in another variation of the third embodiment. Only the differences from the third mode are described.

The bright glazed assembly 300d differs as follows from the glazed assembly 300a. The first and second PCB supports 41, 41 'are on a common metal section 7', for example a rectangular strip of width less than or equal to the thickness of the edge of the glazed assembly, and better of section T, therefore with a pin 75 to partition the light sources 4,4 '.

This profile 7 'is not fixed on the mounting profile 7 of the glazed assembly for example to a bearing. Each of the diodes of the first source 4 (or of the second source 4 ') has a primary encapsulation 43, 43' and is glued to the first wafer 13 (or to the second wafer 14 ') by a transparent double-sided adhesive 44,44 'as a polyester support with double-sided acrylic adhesive 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 common profile and to have a section (type of bar of rectangular section or even U, L) and glued for each source 4,4 '. Two U or L profiles can be spaced or contiguous or fixed between them and keep the partitioning. One can even have on sides of the opposite side of the glass unit two sections thus glued. Figure 3e shows a partial sectional view of a luminous glazed assembly 300e in a variant of the third embodiment. Only the differences from the third mode are described. The luminous glazed assembly 300e differs as follows from the glazed assembly 300a.

The first anti-mixing band of width DO is no longer a simple opaque coating but is replaced by a first diffusing pattern 5a (white enamel) surmounted by a first opaque pattern 6a (black enamel or colored). The extraction starts from the first tranche 13.

The second anti-mixing strip of width D'O is no longer a simple coating but is replaced by a second pattern diffusing 5'a (white enamel) surmounted by a second opaque pattern 6'a (enamel black or colored). The extraction starts as of the second slice 13 '. The first and second PCB support 41, 41 'are on a common metal section 7', for example a rectangular strip with a base 72, with a width less than or equal to the thickness of the edge of the glazed assembly, and better in T therefore with a pin 75 to partition the light sources 4,4 '. This profile 7 is not fixed on a mounting section of the glazed assembly protruding on the periphery of the outer faces 12 and outer 12 '.

Each of the diodes of the first source (or of the second source) comprises a primary encapsulation 43, 43 'and is glued to the first wafer 13 (or the second wafer 14') by an adhesive 44, 44 'or a double-sided transparent adhesive.

The common section 7 may also be E (not exceeding on the outer and outer faces preferably). It is also possible to remove the common profile and to have a section (type of bar of rectangular section or even U, L) and glued for each source 4,4 '. Two U or L profiles can be spaced or contiguous or fixed between them and keep the partitioning. One can even have on sides of the opposite side of the glass unit two sections thus glued. Figure 4 shows a partial sectional view of a luminous glazed assembly 400 in a fourth embodiment.

Only the differences from the third mode 300a are described. The luminous glazed assembly 400 differs as follows from the glazed assembly 300a. We no longer use low index film. A third glass 1 "is inserted, for example identical to the first and second glazings 1,1 ', and the thickness of each can be lowered to approximately 4mm, d1 (d1') becomes equal to 4mm.

This third glass 1 "is coated: - on its face 11" ', inner face side 11 of a first low index layer which is a porous silica layer preferably obtained by sol-gel and thickness of 600nm better 800nm , surmounted if necessary by a first transparent protective layer 2a in a sol-gel (dense) silica layer, of thickness 300 nm or even more, with an index of refraction n4 of at least 1.4 to 550 nm - On its face 12 "'side bonding side 11' of a second low index layer which is a porous silica layer preferably obtained by sol-gel and of thickness 600nm better 800nm, preferably identical to the first low-index layer, surmounted if necessary by a second transparent protective layer 2'a in silica (dense) layer obtained by sol-gel, of thickness 300 nm or even more, preferably identical to the first protective coating 2a The mounting profile 7 is U-shaped (or alternatively te E to partition the light). n2 (n2) varies according to the volume fraction of pores and can range from 1.4 to 1.15 easily. The volume fraction of pores is preferably greater than 50% and even 65% and preferably less than 85% for a high resistance of the layer. Each porous silica layer 2, 2 'is a silica matrix with closed pores (preferably delimited by the walls of the silica) by volume. If n2 goes down to 1.2 (if n'2 goes below 1.2) we can remove the first (second) 8,8 'antimix strip. The porosity can be further monodisperse in size, the pore size then being calibrated. 80% or even more of the pores are closed spherical (or oval) have a diameter between 75nm and 100nm. As a variant, only the glass 1 "can be used with the first porous silica gel sol layer 2 with its protective coating 2a (preferably) - the opposite face then in contact with the second laminating interlayer - but given the thickness millimeter of the third central glass 1 "increases the path of the guided rays and this can reduce the extraction efficiency (and even more rays can be absorbed by the first opaque masking means 6).

An example of manufacture of the porous silica layer is described in WO2008 / 059170. Preferably, the high temperature firing is after the liquid deposition of the dense silica layer on the dried porous silica layer. Fig. 5 shows a partial sectional view of a luminous glazed assembly 500 in a fifth embodiment. Only the differences from the fourth mode 400 are described. The luminous glazed assembly 500 differs as follows from the glazed assembly 400.

The profile 7 is E, preferably metal and for example at most 5mm (thickness less than or equal to the distance bonding face - internal face), with a central branch 75 partitioning the sources 4 and 4 'and interposed between the inner faces 11 and gluing 11 '. The spacers 3,3 ', the low index layers 2, 2' and their protective coatings 2a, 2b, the central glass 1 "being set back from the edge of the glazed assembly (including first and second slices 13, 13 ' ) on this central branch 75 is arranged on one side the first PCB support 41, on the other the second PCB support 41 'The diodes 4,4' are side-emitting Each side emitting the first source 4 (or the second 4 ') is perpendicular to the first (respectively second) support PCB 41. The width of the emitting face is for example 1 mm dl is of the order of 2.5mm (for 4mm of glass, with centered diodes) Alternatively, the PCB supports 41,41 'are fixed on the wings 71,73 of the mounting profile 7. FIG. partial front view of a series of 2000 double-glazed glazed doors and / or single-vision lighting with two glazed units 100 'luminous in a sixth embodiment. Figure 6a is an enlarged front view of one. Only the differences with respect to the second embodiment 200 are described. The luminous glazed unit 600 differs as follows from the glazed unit 200. Each glazed unit 100 'has five first extraction surfaces 50a to 50e in the form of rectangular horizontal strips of increasing width (height) towards the floor. The fourth first extraction surface (from the top) comprises a set of characters in LOGO form with its opaque or reflective congruent masking (not visible), LOGO surrounded by first discrete scattering patterns similar to those already described with its masking opaque or reflective congruent (not visible). The other first extraction surfaces comprise only first discrete scattering patterns (see FIG. 6a) similar to those already described. The second extraction surfaces (not visible) with their second opaque or reflective masking means are congruent to the first extraction surfaces. Between the extraction strips 50a to 50e and on the upper and lower part there are transparent areas 17. Each glass unit 100 'comprises a mounting frame 7a, 7b, 7c, 7d for example metal or plastic (PVC etc. ) or even wood - (monolithic or in several parts) - for example of U-section. In the interior volume of the vertical mounting profile 7a on the first edge, for the first glazing, as many sets of diodes 4a are placed. at least two distinct colors, for example red or green and even blue or white or amber than extraction surfaces, on a first common 41a (or individual) PCB support. We do the same for the second glazing. The length of each extraction strip is greater than 450 mm, it is therefore preferred, in the interior volume of the vertical mounting profile 7b on the slice side opposite the first slice, to place, for the first glazing, as many additional sets of diodes 4b. at least two distinct colors, for example red or green and even blue or white or amber than extraction surfaces, on another common PCB 41b support (or individual). The additional sets are identical to the sets on the first slice side. We do the same for the second glazing. Each glazed assembly 100 'is mounted on rails and slides to allow passage. The opening can be conditioned to the use of a ticket, a means of identification etc. Fig. 7 shows a partial sectional view of a luminous glazed assembly 700 in a seventh embodiment.

Only the differences from the third mode 300a are described. The luminous glazed assembly 700 differs as follows from the glazed assembly 300a. The second light source 4 'is on the opposite side of the glass unit with respect to the first light source 4. The second wafer 13' is therefore on the opposite side of the glass unit with respect to the first wafer 13. even the second anti-mixing strip 8 'is on the opposite side of the glazed assembly with respect to the first anti-mixing strip 8. The first and second glazings remain of identical size but are offset laterally. A fastening section 7 'of the PCB 41 with diodes 4 to the first glazing is of U-section (or L) and is attached to the first glazing (on the protruding zone 12a of the internal face 11a due to the offset of the glazing) . Another mounting profile 7 "of the PCB 41 'with diodes 4' at the second glazing is of U-section (or L) and is attached to the second glazing (on the protruding zone 11a of the bonding face 11 due to the shifting of the glazings.) A mounting profile of the glazed assembly can be attached to the entire thickness of the glazed assembly on each side.The anti-mixing strips 8 and 8 'are in the protruding areas 11a, 11'. They can be deleted.

Figure 7 'shows a partial sectional view of a luminous glazed assembly 700 in a variant of the seventh embodiment. Only the differences from the seventh mode 700 are described.

The luminous glazed assembly 700 'differs as follows from the glazed assembly 700. The fastening profile 7' does not form an extra thickness of the glazed assembly because it is opposite the protruding zone 11'a of the second glazing 1 ' . It can even be fixed by its wing 73 to this protruding zone (beyond the second extraction surface 50 '). The other profile 7 "does not form an excess thickness of the glass unit because it is opposite the protruding zone 12a of the first glazing unit 1 'and can even be fixed by its flange 73' to this protruding zone (at the the first extraction surface 50), the anti-mixing strips are suppressed, the diodes comprise a lens 42, 42 'for a narrow emission diagram or alternatively a low index layer (with a protective coating) is used as the optical isolator with n2 of less than 1.2 Figure 8 shows a partial sectional view of a luminous glazed unit 800 with a double one-way light zone (decoration and / or signaling) in one embodiment of the invention comprising: a first glazing 1, here of rectangular shape (for example length of 1 m according to the vertical, width for example of 250 mm), plane or alternatively curved (tempered), of clear silicosodocalcic glass or extraclear hardened, (for example about 6mm in particular the so-called Planilux glass of the Applicant, quenched), of refractive index n1 of about 1.5 to 550 nm, of TL of at least 90%, with a first main face 11 called internal face, a second main face 12 said outer face, a first slice 13 which is vertical in the mounted position and its opposite slice 14 (here singing formed of four slices; the first slice being longitudinal), - a first light source 4, here a set of red and green light-emitting diodes 4 aligned on a printed circuit board said first support PCB 41, source optically coupled to the first slice 13, the first glazing 1 guiding the light emitted by the diodes preferably spaced here 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, for example each diode width WO 4mm, - a first extraction surface 50 delimited by (the outlines) of the first light extraction means 5, 5a, 5b associated with the first glazing here directly on the inner face 12, which are a first discontinuous diffusing layer white with a clarity L * of at least 50, which is here a diffusing white enamel containing white mineral pigments and melted glass frit, in the form of first diffusing patterns of variable size, including a network of discrete patterns 5a, 5, decorative pattern (s) 5b and / or alternatively a set of characters (LOGO etc). The first diffusing pattern 5a is distant from W of the first slice 13. The widest pattern 5b is a decorative geometric pattern, for example, of width 3cm. The discrete patterns are for example geometric, like disks For a first extraction surface length of 256mm (depending on the horizontal), the discrete patterns are for example disks of diameter 1mm, spaced 4mm. The decorative pattern is spaced (surrounded) by 7mm of the discs. In a first example of manufacture, is applied by screen printing on the inner face 11 (or external variant) a first enamel composition, diffusing, discontinuously liquid to form the frame of the first diffusing patterns 5, 5a, 5b comprising sintered of glass, white mineral pigment and organic medium and dry. More specifically, the first enamel composition containing a glass frit and TiO 2 pigments (sold under the reference 194100 by FERRO) and an organic medium (sold under the reference 801022 by the company Prince Minerais) in an amount allowing to obtain a viscosity of 200 Poises (measured under the above conditions). The average (wet) thickness of the deposited first layer is 35 μm. Glass side (external side) the white color is defined by L = 63,08, a = -1,92, b = 0,69 (after cooking). Side masking (internal side) the white color is defined by: L = 82.35, a = 1.24, b = -0.46 (after cooking). The optical density of the white diffusing enamel is 0.9 (glass side), after cooking.

The screen-printing screen for the first layer consists of a fabric of polyester threads of 80 μm in diameter comprising 43 threads / cm, which makes it possible in particular to form the plurality of discrete patterns in the form of discs 1 mm in diameter spaced 4 mm apart, a decorative pattern of width 2cm as a disc, a symbol. After the deposition, the first glazing thus coated is introduced into a drying device equipped with infrared lamps operating at a temperature of the order of 145 to 155 ° C in order to eliminate the organic medium and consolidate the layer. The first coated glaze is then heated to a temperature of 655 ° C in an oven so that the glass frit melts and forms the enamel. Alternatively, the enamel 5 has for example the following composition: - between 20 and 60% by weight of SiO 2, - 10 to 45% by weight of refractory pigments, including TiO 2, especially of micron size - not more than 20% by weight of alumina and / or zinc oxide. Examples of enamel composition may be enamel under the name Ferro 194011 marketed by FERRO, reference AF5000 sold by JM, reference VV30-244-1 marketed by Pemco. In another variant it is possible to choose a white paint. For example, extrablanc paint Planilaque Evolution product of the applicant company with as the majority pigment of TiO2. The thickness is typically between 40 and 60pm. 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, by a non-aromatic isocyanate, of hydroxylated acrylic resins resulting from the polymerization of an acrylic styrene; mineral materials (pigments and fillers); ) up to 55% by mass.

The inner face 11 and the first diffusing patterns 5,5a, 5b are (directly) covered by: - a first lamination interlayer 3 in thermoplastic material here submillimeter EVA, in a sheet of 0.38 mm, transparent even clear, having (only) a blur of not more than 1.5%, and even 1% and of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 (here n3 equal to 1.49 approximately in the visible spectrum) a low index film 2, made of fluoropolymer, forming the first optical isolator, preferably ETFE or FEP and having a thickness of 50 μm having first and second main faces treated by corona treatment, of blurring between 1.5 and 2 %, such as the product called Norton ETFE Saint Gobain Performance Plastics blur between 1.5 and 2% index n2 equal to 1.4 or Norton FEP Saint Gobain Performance Plastics blur between 1.5 and 2% index n2 equal to about 1.34, film in adhesive contact with the first sheet interlayer 3, a central lamination interlayer 3 "thermoplastic preferably EVA identical (nature, thickness, a sheet) to the first lamination interlayer 3, but optionally tinted, in adhesive contact with the low film index 2, a central support 1 ", which is transparent here a mineral glass (or a plastic film, such as a PET), identical to the first glazing (can be thinner), but possibly tinted, coated in the face by first opaque masking means 60 which are a first opaque coating here in black, gray or colored enamel (red, green or other sufficiently absorbent color), enamel containing mineral pigments and melted glass frit, opaque layer here on the side of bonding 11 'but alternatively side inner face 11, another central lamination interlayer 3 of thermoplastic material preferably EVA identical (nature, thickness, a sheet) to the first lamination interlayer 3, but optionally stained, in adhesive contact with the opaque coating 30, a second low index 2 'film, made of fluopolymer, forming a second optical isolator, preferably ETFE or FEP and having a thickness of 50 μm having first and second main faces treated by corona treatment, of blur between 1.5 and 2%, such as the product called Norton ETFE Saint Gobain Performance Plastics blur between 1.5 and 2% refractive index n2 equal to 1.4 or Norton FEP the company Saint Gobain Performance Plastics blur between 1.5 and 2% refractive index n2 equal to about 1.34, film in adhesive contact with the other lamination interlayer 3-, preferably identical to the first optical isolator 2, a second lamination interlayer 3 "of thermoplastic material, preferably transparent, clear EVA, identical (nature, thickness, a sheet) to the first interlayer lamination, in adhesive contact the second low film index 2 ', and of refractive index n3 - a second glazing 1 ', of mineral glass, identical to the first congruent glazing (or alternatively offset), with a main bonding face 11' on the second lamination intermediate side 3 ', one face so-called outer opposite 12 ', a second wafer 13' and its opposite wafer 14 ', of refractive index n1 of about 1.5 to 550nm, of TL of at least 90%, (with n3 such that n'3-n'1, in absolute value, is less than 0.05 in the visible spectrum (here n'3 equal to 1.49 approximately). The glazed assembly 800 further comprises: a second light source 4 ', here a set of red and green light-emitting diodes aligned on a printed circuit board, said second PCB support 41', source optically coupled to the second wafer 13 ' , the second glazing 1 'guiding the light emitted by these diodes 4' preferably spaced apart by at most 1mm of the second wafer, preferably centered on the second wafer and of width less than the thickness of the second glazing 1 ', 1 ', for example diode width VV'0 4mm, for example here in congruence with the first extraction surface 50 (same size, same shape or contours), a second extraction surface 50' delimited (by its contours ) by second light extraction means 5 ', 5'a, 5'b associated with the second glazing, here directly on the bonding surface 12', which are a second white discontinuous diffusing layer having a clarity L * d 'at least 50, preferably a white enamel diffusing with white mineral pigments and melted glass frit, here of nature and same thickness (substantially) identical to the first diffusing layer 5, in the form of second diffusing patterns of variable size, chosen from a network of discrete patterns 5 ', 5'a and / or a set of characters / and / or decorative pattern (s) 5'b, for example congruent with first scattering patterns 5,5a, 5b.

Alternatively, if the opaque masking coating (enamel ink paint, etc.) is red, based on red or another green-absorbing color (or of sufficient thickness to absorb it), then a second masking coating is added opaque of at least one red-absorbing color, for example blue, yellow or green, for example on the inner side face 11 of the central glass 1 ".

The manufacture of the second glazing 1 coated with a layer of white diffusing enamel 5 is identical to that described for the first glazing.

The first extraction surface 50, (and the second extraction surface 50 'here congruent) can extend over the entire length and substantially covering the first glazing (at the margins), as for the opaque coating 60. As shown alternatively in FIG. 8a, there may be several first strip extraction surfaces 50a, 50b for example two horizontal stripes-one in discrete patterns 5, 5a and the other in discrete patterns surrounding a LOGO 5b-spaced apart by a transparent zone 17 and spaced from the lateral edges by a transparent zone 17. There are then two opaque coating areas 60a, 60b spaced apart each covering an extraction strip. As shown in variant in FIG. 8b, there may be several first strip extraction surfaces 50a, 50b, for example two horizontal stripes-one in discrete patterns 5 narrower than the first, for example off-centering to the right- the other in discrete patterns 5 less wide than the first glazing, for example off-center to the left-- spaced apart by a transparent zone 17 and spaced from the lateral edges by a transparent zone 17. There are then two areas of opaque coating 60a, 60b spaced apart, the first covering the first extraction strip, the second covering the second extraction strip and extending over the width of the glazing for example to prevent cutting or walking in the laminated assembly. The first light source 4 is therefore dynamically driven to emit at the instant t0 via a first series of diodes 4 a first main radiation at a first wavelength called X1 and at time t4t0 via a second series of diodes. 4 a second main radiation at a second wavelength called X2 distinct from X1. The second light source 4 'is therefore dynamically driven to emit at the instant t0 via a third series of diodes 4' a third main radiation at a third wavelength called X3 and at the instant t4t0 via a fourth series diode 4 'a fourth main radiation at a fourth wavelength X4 said distinct from X1. At t0: - the first source 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 at X1 'substantially equal to X1, distinct by not more than 10nm or 5nm and with a spectral width at mid-height of less than 30nnn), - the second source emits in the red with X3 in a range from 615nm to 635nm and width spectral range 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 mid-height of less than 30nm) or white. At t ': - the first source emits in red with X2 in a range from 615nm to 635nm and spectral width at mid-height of less than 30nm (and light extracted C2 is red defined by a second main 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 second source emits in green with X4 in a range from 515nm to 535nm and spectral width at mid-height of less than 50nm (and light extracted C4 is green defined by a fourth main extracted radiation at X4 'substantially equal to X4, distinct from at most 10nm or 5nm and with a spectral width at half height less than 30nm). Alternatively, the first source continues to emit in the red with X4 in a range from 615 nm to 635 nm and spectral width at mid-height of less than 30 nm (and the extracted light C4 is red defined by a fourth principal extracted radiation at X4 '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). Another configuration is that for example at t3 each source 4, 4 'emits in green or in white. It is also possible for one of the sources to be off (hence the following configurations: red and off state, green and off state, white and off state). To prevent the mixing of the green and red colors, especially if the opaque coating 60 is absent (for example recessed) on the periphery of the first and second wafers, each diode 4 of the first source 4 optionally comprises a collimation optic 42 which ensures narrow emission diagram. Each diode 4 of the first light source 4 is spaced from the first wafer by air (even at most 2 mm) and at least 80% (better at least 90% and even at least 95%) of the light flux. emitted by each diode is in an emission cone between -al and al with al = Arsin (n1 * sin (a2)) where a2 = 7t / 2-Arsin (n2 / n1) and corresponds to the refraction angle in the first glazing as shown in detail.

For n2 = 1.4 (ETFE index) and n1 = 1.5 in the visible spectrum a2 is 21 ° and al of 33 °. For n2 = 1.35 (FEP index) and n1 = 1.5 in the visible spectrum a2 is 26 ° and a1 41 °. To prevent the mixing of the green and red colors, especially if the opaque coating 60 is absent (recessed) at the periphery of the first and second wafers, each diode of the second source 4 'optionally comprises a collimation optic 42' which provides a diagram narrow issue. Each diode of the second light source 4 'is spaced from the second wafer by air of about 1 mm and at least 80% (better at least 90% and even at least 95%) of the luminous flux emitted by each diode is in an emission cone between -al and al with al = Arsin (n1 * sin (a'2)) where a'2 = 7t / 2-Arsin (n2 / ne1) and corresponds to the angle refraction in the second glazing ,. As diodes, it is possible to choose the ALMD diodes from Avago company of 4 mm width with 100% of the luminous flux emitted by each diode in an emission cone between -30 and 30 °. In particular, the red diodes called ALMD-EG3D-VX002 based on AlInGaP dominant wavelength at 626nm and spectral width between 618nm and 630nm. In particular the green diodes called ALMD-CM3D-XZ002 based on InGaN dominant wavelength at 525nm and spectral width between 519nm 20 and 539nm. Each PCB support is in bar, rectangular not exceeding the edge of the glass unit and includes alternating red and green LED. 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 principal direction of emission substantially parallel to the first slice (respectively to the second slice) for example of less than 5 °. The emission diagram is of Gaussian type. As a variant, conventional diodes are chosen and these diodes are partitioned for example by an E-mounting profile (or an E-shaped fastening profile or two L-shaped sections). Normal luminance of a pattern 5a on the outer or outer side with green or red light is about 100 cd / m2 (+/- 10 cd / m2). 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 times the flux F2 emitted by a "red" diode emitting in the red.

In this case, it may be preferable for the first (respectively second) extraction means to be a white paint and even on the outer (or outer) face. For example, extrablanc paint Planilaque Evolution product of the applicant company with as the majority pigment of TiO2.

The thickness is typically between 40 and 60pm. 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, by a non-aromatic isocyanate, of hydroxylated acrylic resins resulting from the polymerization of an acrylic styrene; mineral materials (pigments and fillers); ) up to 55% by mass. The first and second PCB supports 41, 41 'are in the interior volume 74 of a mounting section 7 of U section, preferably metal (aluminum, steel-lacquered) or plastic variant (PVC etc.) or wood comprising: - a base 72 facing the edge of the glazed assembly 200 (including the first and second wafers 13, 13 ', the wafers of the low index film and the first and second lamination interleaves 3,3'), base metal carrying here the first and second PCB supports 41,41 '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 face outer 12 'W width 3cm, without being in optical contact to not disturb the guidance.

The face 12 'is a free surface of the light glazing, is visible or even accessible (to the touch). The glass unit could be assembled in an insulating glass or vacuum if necessary The first and second slices 13,13 'are straight, polished. Opposite slices 14, 14 'are straight, polished or even diffusing.

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. It is possible to place a polymeric seal on this opposite edge, for example for greater comfort if the leaves fall back too quickly on the pedestrian.35 FIG. 9 shows a partial sectional view of a luminous glazed unit 900 with a double light-up area. unique in a variant of the last embodiment Only the differences with respect to the last mode 800 are described.

The luminous glazed unit 900 differs as follows from the glazed assembly 800. The first and second lamination interleaves are removed as well as the central glass and the other central interlayer lamination. The first optical isolator is no longer a fluoropolymer film but a first layer of porous sol-gel silica 2 with a thickness of 600 nm 800nm preferably with its first protective coating in silica gel sol dense layer 2a thickness 300 nm or even more, with an index of refraction n4 of at least 1.4 to 550 nm. The first sol-gel porous silica layer 2 is on the inner face 11 and the first light extraction means 5 are on the outer face 12 and for example in the form of frosted (in decorative patterns, solid pattern, hollowed out. .) on a first extraction surface 50, for example central. The second optical isolator 2 'is no longer a fluoropolymer film but a second layer of sol-gel porous silica 2' with a thickness of 600nm better than 800nm, preferably with a second protective coating made of a silica gel sol gel layer 2'a 300nm thick or even more, with a refractive index of at least 1.4 to 550nm. The second sol-gel porous silica layer 2 'is on the bonding face and the second 5' light extraction means are on the outer face 12 'and for example in the form of frosted (in decorative patterns, in solid pattern , recessed ..) on a second extraction surface 50 'for example central and congruent with the first extraction surface 50. n2 (n2) varies depending on the pore volume fraction and can range from 1.4 at 1.15 easily. The volume fraction of pores is preferably greater than 50% and even 65% and preferably less than 85% for a high resistance of the layer. Each porous silica layer 2, 2 'is a silica matrix with closed pores (preferably delimited by the walls of the silica) by volume.

The porosity can be further monodisperse in size, the pore size then being calibrated. 80% or even more of the pores are closed spherical (or oval) have a diameter between 75nm and 100nm. An example of manufacture of the porous silica layer is described in WO2008 / 059170. Preferably, the high temperature firing is after the liquid deposition of the dense silica layer on the dried porous silica layer.

The opaque coating 60 is here an impression on the central lamination interlayer preferably a PVB which can be tinted (if one does not want one or areas of transparency, colorless by limiting the range of 60).

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 X1 and the second light source contain only third diodes X3.

The glass unit can also be suitable as a light partition (in a room, between offices, floor slab or window.15

Claims (25)

REVENDICATIONS1. Luminous glazed unit (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700') comprising: - a first glazing (1) of refractive index n1, with main faces (12), called face internal (11) and outer face (12), and a first slice (13), - a first light source (4), optically coupled to the first glazing by the first slice, first glazing thus guiding the light emitted by the first source , first source of light controlled, statically or dynamically, to emit at time t0 a first main radiation at a first wavelength called X1 and preferably switchable to emit at time t4t0 a second main radiation to a second said X2 wavelength distinct from X1, - first light extraction means (5), associated with the first glazing unit, comprising one or a plurality of first extraction patterns delimiting a first extraction surface (50), 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 t 'is a second color called C2 distinct from C1, - first masking means (6 ) of the light extracted on the internal face side, arranged on the internal face side and partially covering the internal face, chosen from at least one of the following means: opaque means congruent with the first extraction means, more distant than the first means extraction of the inner face and preferably on the first extraction means, - reflective means facing the first extraction means, and preferably which are on the first extraction means and further from the first glazing that the first extraction means, - in optical contact with the first glazing unit, a second glazing unit (1 ') of refractive index n1, with principal faces called bonding face (11') and external face e (12 '), the bonding face being opposite the inner face, and a wafer (13'), said second wafer, - a second light source (4 '), optically coupled to the second glazing, by the second slice, second glazing thus guiding the light emitted by the second light source, second piloted static or dynamic light source, to emit to said tO a third main radiation at a wavelength called X3 distinct from X1 and preferably substantially equal to X2 and 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') associated with the second glazing, comprising a or a plurality of second extraction patterns delimiting a second extraction surface (50 '), 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 Cl, and preferably said t 'is of a color called C4 distinct from C2, - second masking means (6') of the light extracted face side bonding, arranged on the bonding side side, partially covering the bonding face, chosen from at least one of the following means: opaque means in congruence with the second extraction means, more distant than the second extraction means of the bonding face and preferably on the second extraction means, - reflective means facing the second extraction means, and preferably which are on the second extraction means and are further from the second glazing than the first means extraction, - between the first masking means and the second extraction means, an optical isolator (2), said first optical insulator, transparent, of refractive index n2 such that, at the wavelengths of the first light source, n1-n2 is at least 0.08, which is opposite the inner face: between the first wafer and the first extraction surface and / or between the first extraction patterns, preferably covering the first extraction surface, the first optical isolator is laminated to the first glazing by means of a first laminating interlayer (3), made of first transparent polymeric material, which is of refractive index n3 such that n3-n1 , in absolute value, is less than 0.05 at the wavelengths of the first light source, - between the first masking means and the second extraction means, an optical isolator (2, 2 '), said second optical isolator, confused with the first optical isolator or distinct and closer to second extraction means, transparent, of refractive index n2 such that, at the wavelengths of the second light source, n1- n2 is at least 0.08, which is next to the face of bonding: between the second wafer and the second extraction surface and / or between the second extraction units, preferably covering the second extraction surface, and in that the second optical isolator (2, 2 ') is laminated at the second glazing by means of a second lamination interlayer (3 '), made of second transparent polymeric material, which is of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 at the wavelengths of the second light source. 2. Luminous glazed assembly (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700') according to any one of the preceding claims in that the first extraction means (5) are on the front internal (11), the first masking means (6) comprise an opaque or even reflective layer, in congruence and on the first extraction means, and in that the second extraction means (5 ') are preferably on the bonding face (12), the second masking means (6 ') comprise an opaque or even reflective layer in congruence and on the second extraction means. 3. Luminous glazing unit (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700') according to any one of the preceding claims in that the first extraction means (5) comprise a diffusing layer of enamel on the inner face, the first masking means (6) comprise an opaque layer of enamel in congruence and on the enamel diffusing layer, the second extraction means (5 ') comprise a diffusion layer of enamel on the bonding face (11 '), the second masking means (6') comprise an opaque layer of enamel in congruence and on the enamel diffusing layer. 4. Luminous glazed assembly (400, 500, 900) according to one of the preceding claims, characterized in that the first optical insulator (2) comprises a first porous silica layer of thickness e2 of at least 400nm on one side main one of a third transparent glass (1 "), mineral glass, oriented side internal side and preferably the second optical insulator comprises a second layer of porous silica of thickness e2 of at least 400nm on another main face of the third glazing oriented side gluing side, refractive index n2 such that at the wavelengths of the second light source (4 ') n'1-n'2 is at least 0.08 . 5. Luminous glazed assembly (800, 900) comprising: - a first glazing unit (1), of refractive index n1, with main faces (12), called inner face (11) and outer face (12), and a first slice (13, 14), - a first light source (4), optically coupled to the first glazing, by the first slice, first glazing thus guiding the light emitted by the first source, first source of light controlled in static or in dynamic for transmitting at time t0 a first main radiation at a first wavelength X1 and preferably switchable to emit at time t4t0 a second main radiation at a second wavelength called X2 distinct from X1, - first light extraction means (5) associated with the first glazing unit, comprising one or a plurality of first extraction patterns delimiting a first extraction surface (50), the extracted light being visible on the external face side, first means extraction such that the light extracted at said tO is of a first color called Cl or preferably said t 'is a second color called C2 distinct from C1, - first means of masking the extracted light side internal side, (60), arranged on the internal face side, at least opposite the first extraction means, opaque or reflecting, preferably covering the first extraction surface (50) and even substantially the inner face, - between the first means of extraction. extraction and the first masking means, a first optical insulator (2) transparent refractive index n2 such that, at the wavelengths of the first light source (4) nl-n2 is at least 0, 08, which is facing the inner face: between the first wafer and the first extraction surface, and / or between the first extraction units, preferably covering the first extraction surface, - in optical contact with the first glazing, a second glazing (1 '), refractive index n1, with principal faces called bonding face (11 ') and external face (12'), the bonding face being opposite the internal face, and a wafer (13 '), called the second wafer a second light source (4 '), optically coupled to the second glazing, by the second wafer, the second glazing thus guiding the light emitted by the second light source, the second source of light controlled statically or dynamically to emit to said tO a third main radiation at a wavelength X3 distinct from X1 and preferably at said moment t 'a fourth main radiation at a wavelength called X4 distinct from X3, - second light extraction means (5' ) associated with the second glazing, comprising one or a plurality of second extraction patterns and delimiting a second extraction surface (50 '), the light extracted from the second glazing being visible on the outside face, and second light extraction means such that the light extracted at t0 is of a color called C3 distinct from C1 and preferably said t 'is of a color called C4 distinct from C3, - second means of light masking extracted side gluing side (60), arranged side bonding side, at least opposite the second extraction means, opaque or reflective, preferably covering the second extraction surface and even substantially the bonding face, - between second extraction means and the second masking means, a second transparent optical isolator (2 ') of refractive index n 2 such that, at the wavelengths of the second light source, n 1 -n 2 is at least 0.08 which is opposite the bonding face: between the second wafer and the second extraction surface, and / or between the second extraction units, preferably covering the second wafer surface; extraction and in that the first optical isolator has a first main surface on the inner side and a second main surface on the bonding side, the first main surface being on the inner face or the first optical isolator being laminated by the first main surface to the first glazing by means of a first laminating interlayer. (3), in first transparent polymeric material, which is of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 at the wavelengths of the first light source, the second optical isolator has a third main surface on the bonding side, the third main surface being on the bonding surface or the second optical isolator being laminated by said third main surface to the second glazing by means of a second laminating interlayer (3 '), second transparent polymeric material, which is of refractive index n3 such that n3-n1, in absolute value, is less than 0.05 at the wavelengths of the second light source (4 '), and in that the glass unit comprises between the first optical isolator and the second optical isolator, a so-called central laminating interlayer (3 ") made of polymeric material said third matter. 6. Luminous glazed unit (800, 900) according to claim 5 in that the first and second masking means (60) coincide when the second extraction means (5 ') are in congruence with the first extraction means ( 5) and / or when the first masking means (60) substantially cover the inner face and the bonding face. 7. luminous glazed assembly (800, 900) according to one of claims 5 or 6 characterized in that the first masking means (60) comprise an opaque coating, such as an ink, a paint or an enamel, in particular on the interlayer central lamination or additional support including plastic or mineral glass. 8. Luminous glazing unit (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to any one of the preceding claims, characterized in that: - at tO the first source of light (4) emits in the green with X1 in a range from 515 to 535 nm, the second light source (4 ') emits in the red with X3 in a range of 615 nm and 635 nm - preferably at t' the first light source emits in the red with X2 in a range of 615 nm and 635 nm and preferably the second light source emits in green with X4 in a range of 515 to 535 nm. 9. Luminous glazed assembly (200, 300a to 300e, 400, 500, 600, 700, 700 ', 800, 900) according to any one of the preceding claims characterized in that tO the first light source (4) comprises a first light-emitting diode which emits in the green with X1 in a range of 515 to 535 nm, and t 'the first light source comprises a second light-emitting diode which emits in red with X2 in a range of 615 nm and 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. Luminous glazed assembly (100,100 ', 200, 300a to 300d, 400, 500, 600, 700, 800) according to any one of the preceding claims characterized in that it comprises at the periphery of the first slice a profile (7 ), preferably metal, protruding on the outer and outer faces preferably over a distance W between 1cm and 3 cm, enclosing or carrying the first light source (4) and optionally the second light source, the first patterns of extraction are preferably spaced apart from the first wafer of at least W. 11. Luminous glazing unit (100, 100 ', 200, 600, 700', 800, 900) according to any one of the preceding claims characterized in that the first light source (4) comprises a first light emitting diode (4) with said first X1 main radiation and a second light emitting diode with said second main radiation at X2, each of the first and second diodes is spaced from the first slice (13) and at least 80% of the light flux emitted by each of the first and second diodes is in an emission cone between -al and al with al = Arsin (n1 * sin (a2)) where a2 = (7t / 2) -Arsin (n2 / n1) and corresponds to the refraction angle in the first glazing, and in that the second light source (4 ') comprises a third light-emitting diode with said third main radiation of X3 and optionally a fourth light-emitting diode with said fourth main radiation of X4, the third diode, the fourth possible diode, is spaced from the second wafer (13 ', 14') and at least 80% of the luminous flux emitted by each of the third and possibly fourth diodes is in a transmission cone between -al and al with al = Arsin (n1 * sin (a'2)) where a'2 = (7t / 2) -Arsin (n2 / n1) and corresponds to the angle of refraction in the second pane. 12. Luminous glazing unit (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700') according to any one of the preceding claims, characterized in that a first so-called antimixing strip (8, 81, 82 , 6a) is in optical contact with the inner face, at the periphery of the inner face, extending from the first wafer, band of width DO at least equal to 0.8 Dmin where Dmin = dl / tan ((n / 2) -arsin (n2 / n1)) and preferably less than 2cm where dl is the distance between the first light source and the inner face, first opaque material strip offset from the first masking means and the first surface of extraction further away from the first or first band formed by a pattern of the first opaque masking means, and in that preferably a second so-called anti-mixing band (8 ', 81', 82 ', 6'a) is in contact optical with the bonding face, on the periphery of the bonding face, extending from the second th slice, band of width D'O at least equal to 0.8Dmin with D'min = l / tan ((7r / 2) -arsin (n'2 / n1)) and preferably less than 2cm in opaque material where l is the distance between the second light source and the bonding face, the second opaque material strip offset from the second masking means and the second extraction surface further from the second or second strip formed by a pattern of two opaque masking means. 13. Luminous glazed assembly (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to any preceding claim characterized in that the glass unit comprises a transparent zone (17) and preferably that the slices facing the transparent area are devoid of light sources and / or in that the first extraction surface (50) has an overall transparency. 14. Luminous glazed assembly (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to any preceding claim characterized in that the first extraction surface comprises: a first network of point scattering patterns (5), patterns of width of at most 1 cm and spaced apart by a pitch pi of at most 1 cm, preferably width and not adapted for overall transparency and / or a first decorative diffusing pattern (5c) of width 12 cm and not more than 5 cm preferably surrounded by the first network of scatter patterns, and / or a first diffusing set of characters (5b) such as a LOGO, each width 13 and d at most 5 cm spaced from a pitch p3 of at most 1 cm, preferably surrounded by the first network of scattering patterns, and in that preferably the second extraction surface is facing and even congruent with the first extraction surface and comprises: a second network of patterns point diffusers (5 '), patterns of width of at most 1 cm and spaced by a pitch p'i of at most 1 cm, congruent with the first network, preferably width and not adapted for overall transparency, and / or a second decorative diffusing pattern (5'c) of width 12 cm and not more than 5 cm preferably surrounded by the second network of point scattering patterns congruent with the first decorative diffusing pattern or facing the first pattern of scattered scatter patterns and / or a second diffusing set of characters (5'c) such as a LOGO, each of width 3 and at most 5 cm spaced apart by a pitch p'3 of at most 1 cm, preferably surrounded by the second network of scatter patterns, congruent with the first scattering set of characters or facing the first network of scatter patterns. 15. Luminous glazing unit (100,100 ', 200, 300a to 300e, 600, 700, 700', 800) according to any preceding claim characterized in that the first optical isolator (2) comprises a first film, said low index, based on fluoropolymer. 16. Luminous glazing unit (100,100 ', 200, 300a to 300e, 600, 700, 700', 800) according to claim 15, characterized in that each major surface of the first low index film (2) is treated by a promoter treatment adhesion which is preferably a corona treatment. 17. Luminous glazing unit (100,100 ', 200, 300a to 300e, 600, 700, 700', 800) according to any one of 15 to 16, characterized in that the fluoropolymer (2) is ETFE or FEP. 18. Luminous glazed assembly (400, 500, 900) according to any one of claims 1 to 17 characterized in that the first optical isolator (2) comprises a first porous silica layer of thickness e2 of at least 400nm. 19. Luminous glazed assembly (400, 500, 900) according to the preceding claim characterized in that the first porous silica layer is coated with a first protective coating (2a) inorganic and transparent, which is preferably a layer of silica of thickness e4 greater than 50 nm and preferably greater than 100 nm and with a refractive index n4 of at least 1.4 to 550 nm. 20. Luminous glazing unit (300a to 300e, 400, 500) according to any preceding claim in that it comprises a partition (75) between the first light source and the second light source arranged on the same side of the glass unit. 21. The illuminated glazing unit (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to any one of the preceding claims in that the first light source (4) is a first set of light-emitting diodes on a printed circuit board said first PCB support (41) and coupled to the first wafer, and preferably the second light source (4 ') is a second set of light-emitting diodes on a circuit board printed said second PCB support (41 '), and are coupled to the second preferably aligned slice of the first slice or aligned or shifted from the opposite slice to the first slice. 22. The illuminated glazing unit (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to any one of the preceding claims in that the first light source (4) is a first set of light-emitting diodes which is coupled to the first wafer by being adhered to the first wafer by an optical adhesive or a transparent double-sided adhesive or being spaced from the first wafer by at most 5mm. A bright glazed unit (700, 700 ') according to any one of the preceding claims in that the first and second light sources are on opposite sides, the second glazing protrudes from the first slice forming a first protruding area (11 a) and preferably the first pane protrudes from the second slab forming a second protruding zone (11a) and in that the first light source is on a first support (41) which is connected to the first protruding zone and / or in the first protruding zone and not exceeding the second slice (13 ') and preferably the second light source is on a second support (41), which is connected to the second protruding zone and / or is in the second zone exceeding and not exceeding the first tranche. 24. Access door (1000, 2000) incorporating the luminous glazed assembly (100, 100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to one of the preceding claims, in particular between the exterior and a building, between two zones of a building or a land, sea or air vehicle, within a public transport station, between two outer zones. 25. Partition, slab, window incorporating the luminous glazed assembly (100,100 ', 200, 300a to 300e, 400, 500, 600, 700, 700', 800, 900) according to one of claims 1 to 23.