FR3136804A1 - ILLUMINATING GLASS STRUCTURE - Google Patents

Abstract

Glazed structure (1) of a building with a privacy function comprising at least one multiple glazing (2) which comprises at least first and second glass substrates (20, 21) spaced apart, and sealing means (25) arranged between the first and second glass substrates, - the first glass substrate (20), which is transparent, comprising on one of the main faces a diffusing zone with a privacy function (2A) which has a blur value H1 of at least 50%, preferably at least 80%, and which occupies a surface area of at least 50% of said first glass substrate, - the second glass substrate (21), which is transparent with a clear view, and to which is coupled a system of lighting (3), forming a light guide and comprising on one of the main faces a localized extraction zone (2B) of the guided light, the localized extraction zone (2B) being opposite only part of the diffusing zone with privacy function (2A). Figure to be published with the abstract: Fig. 4

Description

ILLUMINATING GLASS STRUCTURE

The invention relates to the field of glazed building structures with privacy functions.

The invention will apply to all uses for buildings, such as doors or partition walls between the interior and exterior of a building, or interior doors or partitions, or even outdoors. Generally speaking, the glazed structure with a privacy function of the invention is used to separate two spaces, one of the spaces being intended to be hidden from view from the other space while retaining the translucent appearance of the structure.

It is known, for example for entrance doors or other glass separation structures, including indoors such as a bathroom door, to provide a glass structure whose glass is frosted. This glass lets natural light through while preserving privacy.

The interior frosted glass structures are based on single glazing, while those constituting entrance doors can be double glazed for the insulation function. In order to offer new products on the market, we seek to provide these glass structures with new functionalities, while preserving the primary function of privacy.

The aim of the invention is to propose a glazed structure with a function of intimacy and confidentiality, but which nevertheless can be illuminating while providing discreet lighting, especially when the glazed surface is large.

According to the invention, the glazed structure of a building with a privacy function comprises at least one multiple glazing which comprises at least first and second spaced glass substrates, and sealing (and sealing) means, in particular peripheral, arranged between the (main faces of) the first and second glass substrates, the first glass substrate which is transparent, comprising on one of the main faces a diffusing zone with a privacy function which has a blur value H1 of at least 50%, preferably of at least 80%, and which occupies a surface area of at least 50% of said first glass substrate, and the second glass substrate which is transparent with a clear view, and to which is coupled a lighting system, forming a guide of light and comprising on one of the main faces a localized zone for extraction of guided light, the localized extraction zone being opposite only part of the zone with an privacy function.

It is recalled that the diffusion level of a substrate can be characterized by the value of the blur (or blur factor), measured in a known manner by a haze measuring device (Haze in English), also called "Haze meter" .

“Lighting system” means one or more light sources.

By “diffusing zone with privacy function”, we mean a surface which is diffusing (i.e. which allows light to pass through but not images) and which has an extent which corresponds to the desired privacy, in particular to hide from view from one side of the structure, a person or an object located on the other side of the structure.

Proposing an illuminating glass structure with a light source against the edge of the glass structure and using the frosted surface as a light extraction zone would result in inhomogeneous lighting, which would not be aesthetically pleasing.

The glazed privacy structure of the invention provides its primary function of privacy thanks to the first glass substrate, and a complementary function of lighting without being aggressive to the eyes, thanks to the second glass substrate which includes a localized extraction zone reduced surface area.

The localized extraction zone (preferably diffusing layer, coating or film) faces only part of the diffusing zone with a privacy function. Thus, surprisingly, by coupling a second glass substrate to the privacy substrate, and by coupling the lighting system to this second glass substrate (and not to the first glass substrate of which almost the entire surface is diffusing) while locating the extraction zone and this is well opposite the diffusing zone with privacy function, homogeneous lighting is obtained (in particular on the exterior side, opposite the first substrate glassmaker). Furthermore, against all expectations, in the off state of the lighting system, the localized extraction zone turns out to be very discreet, even invisible: an individual being on the side of the first substrate (side of the privacy zone ) will not perceive the localized extraction zone of the second substrate which will then be at the rear of said first substrate, and an individual located on the side of the second substrate (side of the localized extraction zone), may not even perceive the localized extraction zone because the eye will be especially attracted by the overall vision of the diffusing zone with a privacy function placed at the rear of said second substrate and occupying the vast majority, or even the entire surface of the glazed structure.

Preferably, the localized extraction zone is peripheral. By “peripheral” is meant the fact that the localized extraction zone extends along the edge of the edge of the second glass substrate or in the immediate vicinity of the edge of the second glass substrate, in particular extends from the (internal) edge means for sealing the glazed structure (peripherals), and in particular along all or part of the perimeter of said second glass substrate.

The localized light extraction zone of this second glass substrate presents a blur compared to the rest of the surface in clear view. Advantageously, the localized extraction zone has an H2 blur value of at least 30%, preferably greater than 50%, or even at least 90%. Preferably, the diffusing zone with privacy function has a blur value H1 of at least 80%, and the localized extraction zone has a blur value H2 such that the difference in absolute value |H1-H2| between the blur values does not exceed 10%, preferably does not exceed 5%, and even more preferably is zero.

The second glass substrate is a transparent glass, with little or no diffusion. Its blur value in the H3 clear view is less than 1%, and even at most 0.5% or 0.2%, or even zero. Preferably, the second glass substrate is clear or even extra-clear glass, to promote guidance and therefore promote the quantity of light extracted. The localized light extraction zone of this second glass substrate has a blur value H2 greater than the blur value H3 of the rest of the surface in clear view.

Preferably, the diffusing zone with a privacy function and the localized extraction zone come from the same manufacturing technique, preferably by the same glass surface texturing technique. In particular, the inventors have surprisingly demonstrated that with the same level of blur for the diffusing zone with privacy function and the localized extraction zone (H1=H2; |H1-H2|=0), and from the same manufacturing technique, preferably by the same texturing technique, the localized extraction zone in the off state of the lighting system turns out to be extremely discreet or even invisible depending on the distance and/or the viewing angle of an individual located on the side of the second glass substrate provided with the localized extraction zone.

According to one characteristic, the diffusing zone with a privacy function of the first glass substrate extends over its so-called internal face, that inside the glazing and in particular occupies at least 70%, or at least 80%, 90% or even 95%. % of the internal face, preferably the diffusing zone with a privacy function extending on the surface towards the inside of the glazing and from the edge of said sealing means (peripherals). The diffusing zone with a privacy function can entirely occupy the central zone and go as far as the sealing means. The clear view of the second glass substrate is preferably a part of the central zone.

Advantageously, the localized extraction zone occupies at most 30% or at most 20% or even at most 10% of the internal or external face of the second glass substrate, and in particular is peripheral.

Preferably, the localized extraction zone is a peripheral strip with a width of at least 20 mm and at most 200 mm, and better still at most 100 mm. The width is understood by the dimension perpendicular to the edge of the glass and the length or side of the substrate along which the lighting sources extend. The peripheral extraction strip has for example the shape of a peripheral frame (over the entire periphery of the second glass substrate). In another example, the peripheral strip is adjacent to a door lock (to facilitate opening the door at night, etc.) and/or is adjacent to a door bottom along the edge with the system of 'lighting.

In particular, the localized extraction zone extends on the surface towards the inside of the glazing (in the direction opposite to the edge of the glazing) from a distance of at least 10 mm from the edge (edge) of the substrate . Preferably, the localized extraction zone extends on the surface (towards the inside of the glazing) from the edge of the sealing means (advantageously, the localized extraction zone does not cover the sealing means).

Preferably, the lighting system faces the edge of the second glass substrate (that is to say that the optical coupling is carried out by the edge of the second glass substrate).

Alternatively, the lighting system may comprise at least one light source facing one of the two so-called internal and external faces of the second glass substrate, and said second glass substrate comprises a light redirection element. opposite the light source on the other of the two internal and external faces. The redirection element can be a prismatic film (reflector) to guide the rays before extraction.

According to another characteristic, the lighting system is a linear source and/or comprises light-emitting diodes. It can be a strip of diodes in particular the lighting system is over the entire port of the glazing when the extraction means form a peripheral frame.

According to a preferred embodiment, for protection purposes, the diffusing zone with a privacy function of the first glass substrate extends on its so-called internal face, that inside the glazing.

According to a preferred embodiment, for protection purposes, the localized extraction zone of the second glass substrate extends on its so-called internal face, that inside the glazing.

The arrangement inside the glazing of the localized extraction zone and the diffusing zone with a privacy function (which are relatively fragile surfaces) avoids the risk of degradation of these.

According to one characteristic, the diffusing zone with a privacy function and the localized extraction zone are obtained by at least one of the following means: surface texturing by sandblasting, acid etching, engraving, or by a printing roller; deposition of a diffusing coating (binder with diffusing particles, in particular metal oxides) such as a diffusing enamel or a diffusing (organic, etc.) ink; affixing a polymeric diffusing film; preferably the diffusing zone with privacy function and the localized extraction zone are obtained by texturing.

According to one characteristic, the diffusing zone with a privacy function can be a textured surface of one face of the first glass substrate, preferably of the so-called internal face of the first glass substrate, in particular by sandblasting or acid etching.

According to one characteristic, the localized extraction zone can be a coating or a self-supporting polymeric film on one face of the second glass substrate, preferably on the internal face of the second glass substrate.

In a preferred embodiment, the diffusing zone with a privacy function is a textured surface of one face of the first glass substrate, preferably of the so-called internal face of the first glass substrate, and the localized extraction zone is a surface textured on one face of the second glass substrate, preferably the textured surfaces having been obtained by sandblasting or obtained by acid attack.

The invention also relates to a building door, in particular a third party door or a transom, or to a dividing wall in a building, comprising a glazed structure with the aforementioned privacy function of the invention.

The aforementioned glazed structure with privacy function of the invention can therefore be used in a building door, in particular a third party door or a transom, or used in a separation wall in a building.

• représente une vue schématique de face d’un premier exemple de réalisation de structure vitrée selon l’invention.
• est une vue schématique de face d’un deuxième exemple de réalisation de structure vitrée de l’invention.
• est une vue schématique de face d’un troisième exemple de réalisation de structure vitrée de l’invention.
• montre une vue schématique partielle en coupe d’un exemple de vitrage à fonction d’intimité et éclairant selon l’invention, qui est monté dans un encadrement de structure vitrée telle que celle des figures 1 à 3, et en regard du chant d’un des substrats verriers.
• illustre une variante de la quant au montage du système d’éclairage couplé au vitrage à fonction d’intimité et éclairant de l’invention, et toujours en regard du chant d’un des substrats verriers.
• illustre un autre exemple d’agencement du système d’éclairage du vitrage à fonction d’intimité et éclairant de l’invention, le système d’éclairage étant agencé en regard de l’une des faces de l’un des substrats verriers.
• est une vue schématique de face d’une structure vitrée comprenant le système d’éclairage et la zone localisée d’extraction en forme de cadre, et face au second substrat doté de la zone localisée d’extraction.

The present invention is now described using examples that are purely illustrative and in no way limiting the scope of the invention, and from the attached illustrations, in which:

• represents a schematic front view of a first embodiment of a glazed structure according to the invention.
• is a schematic front view of a second embodiment of a glazed structure of the invention.
• is a schematic front view of a third embodiment of a glazed structure of the invention.
• shows a partial schematic sectional view of an example of glazing with a privacy and lighting function according to the invention, which is mounted in a frame of a glazed structure such as that of Figures 1 to 3, and facing the edge of one of the glass substrates.
• illustrates a variation of the as for the assembly of the lighting system coupled with the privacy and illuminating glazing of the invention, and always facing the edge of one of the glass substrates.
• illustrates another example of arrangement of the lighting system of the glazing with privacy and illuminating function of the invention, the lighting system being arranged facing one of the faces of one of the glass substrates.
• is a schematic front view of a glazed structure comprising the lighting system and the localized extraction zone in the form of a frame, and facing the second substrate provided with the localized extraction zone.

For the sake of clarity, the different elements represented in the figures are not necessarily reproduced to scale.

The glazed structure 1 illustrated in Figures 1 to 3 has a privacy function and is capable of being illuminating.

The glazed structure 1 is for example used in a building door, in particular a third party door or a transom window, or used in a partition wall in a building (inside a building).

The glazed structure 1 comprises at least one glazing 2 with a privacy and lighting function.

In the example shown on the , the glazed structure 1 forms the covering according to several panels 10-1, 10-2 and 10-3 of a solid door 10. Each of the panels 10-1, 10-2 and 10-3 comprises a glazing 2 of which the Its entire surface has a privacy function, possibly with the exception near the zone of contact with the sealing means.

In the example of the , the glazed structure is a door 11 which comprises several glazings with privacy and lighting functions 2-1, 2-2, and 2-3, like tiles. Although smaller in size than the glazings 2 associated with the door 10, these glazings 2-1, 2-2, and 2-3 also have their total surface area with a privacy function.

In the example illustrated on the , the glazed structure 1 forms a partition and comprises glazing 2 of which only part 12 has a privacy function while the upper end part 13 is transparent.

As shown in Figures 4 to 6, the glazed structure 1 comprises at least one glazing 2 having the privacy function and integrating the lighting function via a lighting system 3 preferably coupled directly to the glazing 2, and a frame 4.

The glazing 2 and the lighting system 3 preferably form a single-piece assembly ( ) which is mounted in the frame 4 of the glazed structure, such as a door frame or a partition. The frame 4 can be made of wood, PVC, metal (aluminum) etc. In Figures 5 and 6, the lighting system is independent of the glazing 2. Whatever the embodiment, the glazing 2 and the lighting system 3 are mounted in a known manner in the frame 4.

Glazing 2 is multiple glazing. The glazing 2 comprises at least two glass substrates 20 and 21 spaced apart by a blade of air or gas 22. The glazing 2 has for example the following thicknesses: 4 mm for each glass substrate 20, 21, and 16 mm of thickness of gas blade 22. The first glass substrate 20 has a privacy function. The second substrate 21 has an illuminating function.

The two glass substrates 20 and 21 are separated by a spacer or spacer frame 23, also called a "spacer", which serves to keep the two glass substrates apart, and sealing means 24 which seal from the inside glass substrates facing the outside. Usually, the spacer 23 is fixed inside the glazing by its lateral faces to the internal faces of the glass substrates by sealing means 25 such as for example butyl rubber which also has the role of sealing the interior of the glazing with water vapor. The spacer 23 is set back inside the glazing and close to the edges 20' and 21' of said glass substrates, so as to provide a peripheral groove into which the sealing means 24 of the mastic type are injected, such as than polysulphide or polyurethane. The putty confirms the mechanical assembly of the two glass substrates and ensures sealing against liquid water or solvents. The distance (or width) separating the edge of the glazed structure from the opposite end of the sealing means 25 is generally 10 mm and at most 20 mm.

The first substrate 20 with a privacy function comprises a diffusing zone with a privacy function 2A. The diffusing zone with privacy function 2A extends over a surface of the glass corresponding to the surface for which it is desired to obtain said privacy function. Thus, for the examples in Figures 1 and 2, the diffusing zone with privacy function 2A corresponds to the entire surface of the glazing, while for the example of the , the diffusing zone with privacy function 2A is limited to part of the total surface of the glazing. Of course, other examples of embodiment than those illustrated can be considered as to the extent of the diffusing zone with privacy function 2A which can also be in sufficiently close patterns to maintain homogeneity.

Preferably, the diffusing zone with privacy function 2A is arranged on the internal face of the first glass substrate 20.

The diffusing zone with privacy function 2A is obtained by treating the glass to provide texturing characterized by a blur value H1. The blur depends on the diffusion behavior of the material. The first glass substrate 20 is for example an extra-clear glass, such as DIAMANT® glass from the company SAINT-GOBAIN GLASS, 2 mm thick, one of the faces of which is frosted. A DIAMANT® glass is a transparent glass which is an extra-clear glass having a light transmission greater than 91% and a blur value of 0 or approximately 0. A DIAMANT® glass which is frosted has a light transmission greater than 91 % (which is 93.5%) and an H1 blur value of 14.2%.

The second substrate 21 is also transparent, with a window clarity whose blur value H3 is less than 1%, and even at most 0.5% or 0.2% or even zero. The second substrate 21 advantageously comprises a localized light extraction zone 2B, with a blur value H2. This localized extraction zone 2B is more particularly described below.

The lighting system 3 preferably comprises several lighting sources such as light-emitting diodes in one or more particularly rectangular strips. In the example of the , the lighting system 3 is kept coupled to the glazing 2 via a profile 30. The lighting system 3 comprises for example at least one LED strip, which is arranged in the profile 30.

The profile 30 is fixed to the glazing 2 by screwing or gluing. The profile 30 can form a plate with a core 31 or can have a general U shape with a core 31 and two opposite and parallel wings 32 and 33. The profile 30 can be fixed by screwing through the core 31 of the profile and the spacer 23 of the glazing, and/or be fixed by gluing at the level of the wings 32 and 33 of the profile which are pressed against the external faces of the glazing 2.

The lighting system 3 is preferably mounted removable in the profile 30. The lighting system 3 is for example fixed by screwing or, in particular in the case of an LED strip, housed in a slide of the profile 30 .

The mounting of the lighting system 3 in the profile 30 and the fixing of the profile 30 to the glazing 2 will be adapted depending on the direction of lighting, that is to say depending on whether the lighting sources directly illuminate the section of the second glass substrate 21, or one of the faces of said glass substrate.

In Figures 4 and 5, the lighting system 3 cooperates with the edge 21' of the second glass substrate 21 of the glazing to direct the light towards said edge; the light will be diffused thanks to the localized extraction zone 2B.

On the , the lighting system 3 faces the external face of the second glass substrate 21; the light will be diffused thanks to the localized extraction zone 2B and a light redirection element 2C to allow guidance to the localized extraction zone. The light redirection element is for example a prismatic film. The redirection element 2C is distant or even (immediately) adjacent to the localized extraction zone 2B.

The second glass substrate 21 is a clear glass, that is to say one which can be seen through (its blur value H3 is greater than 1%). Said second glass substrate 21 comprises the localized light extraction zone 2B which is located relative to the entire total visible surface of the glass substrate 21, being close to the lighting system 3. localized extraction zone 2B is obtained for example by sandblasting the glass. Alternatively, it could be enamelling.

The second glass substrate with the localized light extraction zone 2B presents at said localized extraction zone preferably a blur relative to the rest of the surface in clear view, the blur value H2 of which is at least 10%, preferably at least 30%, or even greater than 50%, and more preferably at least 90%.

In an exemplary embodiment, the second glass substrate 21 is made of clear glass 2 mm thick whose light transmission (TL) is 91% and has an H3 blur value of 0.2%, as for example PLANICLEAR® glass from the company SAINT-GOBAIN GLASS. The localized extraction zone 2B was obtained by sandblasting the glass and has an H2 blur value of 98% and a light transmission of 81.2%.

In another exemplary embodiment, the second substrate 21 is multiple thickness and comprises several sheets of glass glued one on top of the other such as two sheets of PLANICLEAR® glass each 2mm thick and each having a sandblasted surface. facing each other and constituting the localized extraction zone 2B. The localized extraction zone 2B in double thickness of sandblasted glass has a light transmission of 58.2% and an H2 blur value of 98.9%.

The localized extraction zone 2B has for example the shape of a frame ( ) over the entire periphery of the second glass substrate 21, in the immediate vicinity of the edge of the substrate where the lighting system 3 is located. In another example, the localized extraction zone 2B could be located at the height of the lock d 'a door. In yet another example, the localized extraction zone 2B could be located at the bottom of the door only.

The localized light extraction zone 2B preferably extends on the internal face of the second glass substrate 21 (facing the first glass substrate 20), as illustrated in Figures 4 to 6.

The localized extraction zone 2B is in the immediate vicinity of the lighting system 3. When the lighting system 3 is facing the edge of the second glass substrate 21 (Figures 4 and 5), the localized extraction zone 2B begins as close as possible to the edge of the glass substrate (in the visible part, excluding the frame), from the sealing means 25 separating the two glass substrates 20 and 21. In particular, the localized extraction zone 2B extends to from the edge of the sealing means (butyl rubber) 25 deposited on the internal face of the glass substrate 21. The localized extraction zone 2B extends for example towards the center of the substrate over a width of at most 200 mm . On the , the lighting system 3 is rather facing the external face of the second glass substrate 21. In the latter case, the glazed structure 1 further comprises the light redirection element 2C (reflective prismatic film for example) which is for example immediately adjacent to the localized light extraction zone 2B. The prismatic film is for example rectangular with a width of the order of a centimeter.

The localized extraction zone 2B has surface characteristics and a thickness, which are adapted according to the desired lighting rendering. For the same glazed structure, the extracted lighting will also be different depending on the nature of the lighting system 3, in particular depending on the nature of the LEDs.

For example, the glazed structure 10-1 of the presents a first glass substrate 20 and a second glass substrate 21, each 4 mm thick and whose dimensions are 2000 mm by 500 mm. The first glass substrate 20 has the diffusing zone with privacy function 2A extending over the total surface of the substrate (100% of the surface) and having a blur value H1 of 98.9%. The second glass substrate 21 comprises LEDs 30 arranged over the entire periphery of the substrate and illuminating from the edge. The localized extraction zone 2B forms a strip from the edge of the sealing means 25 which extends over 50mm wide. The localized extraction area 2B has an H2 blur value of 98.9%. The localized extraction zone 2B presents the same blur as the diffusing privacy zone. The difference in absolute blur values |H1-H2| is 0. Table 1 below indicates the different illuminance values obtained depending on the nature of the LEDs used. The illuminance is measured by placing the luxmeter opposite the second glass substrate 21 comprising the localized extraction zone 2B, and at ground level 50 cm from said glass substrate.

White cold
LED: BC 2700K 650 Lumens Neutral white
LED: BF 6000K 700 Lumens
White hot
LED: BN 4000K 910 Lumens Illuminance (lux) 443 615 321

Table 2 below indicates the luminance (visual sensation of brightness of a surface) measured by a luminance meter at two different points symbolized on the by the references M1 (facing the middle of the left side of the substrate and on the localized extraction zone 2A forming a strip) and M2 (facing the middle of the right side of the substrate and on the strip of the localized extraction zone 2A) .

Luminance (cd/m ² ) Point M1 Point M2 LEDs off 2.98 2.39 White cold
LED: BC 2700K 650 Lumens 1420 1460 Neutral white
BF 6000K 700 Lumens 2050 2130 White hot
BN 4000K 910 Lumens 1150 1160

It can be seen that the glazed structure 1 of the invention provides homogeneous lighting whatever the type of lighting source.

Claims (15)

Glazed structure (1) of a building with a privacy function comprising at least one multiple glazing (2) which comprises at least first and second glass substrates (20, 21) spaced apart, and sealing means (25) arranged between the first and second glass substrates,
- the first glass substrate (20), which is transparent, comprising on one of the main faces a diffusing zone with a privacy function (2A) which has a blur value H1 of at least 50%, preferably at least 80%, and which occupies a surface area of at least 50% of said first glass substrate, and
- the second glass substrate (21), which is transparent with a clear view, and to which is coupled a lighting system (3), forming a light guide and comprising on one of the main faces a localized extraction zone ( 2B) of the guided light, the localized extraction zone (2B) being opposite only part of the diffusing zone with a privacy function (2A). Glazed building structure with privacy function according to claim 1, characterized in that the localized extraction zone (2B) is peripheral. Glazed building structure with privacy function according to claim 1 or 2, characterized in that the localized extraction zone (2B) has an H2 blur value of at least 30%, preferably greater than 50%, or even of at least 90%. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the diffusing zone with privacy function (2A) has a blur value H1 of at least 80%, and the localized zone extraction (2B) has a blur value H2 such that the difference in absolute value |H1-H2| between the blur values does not exceed 10%, preferably does not exceed 5%, and even more preferably is zero. Glazed building structure with privacy function according to the preceding claims, characterized in that the diffusing zone with privacy function (2A) of the first glass substrate (20) extends on its so-called internal face, that inside of the glazing, and in particular occupies at least 70% or even at least 80% of the internal face, preferably the diffusing zone with privacy function (2A) extending on the surface towards the inside of the glazing and from from the edge of said sealing means (25). Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the localized extraction zone is a peripheral strip of width of at least 20 mm and at most 200 mm, and better at most 100mm. Glazed building structure with privacy function according to the preceding claim, characterized in that the peripheral strip has the shape of a peripheral frame, or the peripheral strip is adjacent to a door lock and/or is adjacent to a bottom door along the edge with the lighting system. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the localized extraction zone (2B) extends from the edge of said sealing means (25). Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the localized extraction zone (2B) of the second glass substrate (21) extends on its so-called internal face, that to the inside the glazing. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the diffusing zone with privacy function (2A) is a textured surface of one face of the first glass substrate (20), of preference of the so-called internal face of the first glass substrate (20), in particular by sandblasting or acid attack. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the diffusing zone with privacy function (2A) is a textured surface of one face of the first glass substrate (20), of preferably of the so-called internal face of the first glass substrate (20), and the localized extraction zone is a textured surface of one face of the second glass substrate, preferably the textured surfaces having been obtained by sandblasting or obtained by acid attack. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the second glass substrate (21) is clear or extra-clear glass. Glazed building structure with privacy function according to claim 1, characterized in that the lighting system (3) is opposite the edge (21') of the second glass substrate (21), or else the lighting system (3) comprises at least one light source facing one of the two so-called internal and external faces of the second glass substrate (21), and said second glass substrate (21) comprises a light redirection element (2C) facing the light source on the other of the two internal and external faces. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that the lighting system (3) is a linear source and/or comprises light-emitting diodes. Glazed building structure with privacy function according to any one of the preceding claims, characterized in that it is used in a building door, in particular a third party door or a transom window, or used in a partition wall in a building.