Aircraft glazing and window systems, equipped with advanced lighting equipment

Abstract

Aircraft glazing and window arrangement equipped with an improved lighting device. The invention relates to a glazing arrangement (2) for a window (8) extending in a plane (10) and housed in the outer wall (4) of an aircraft (6). It comprises a transparent cover pane (12) in a cover plane (14); an electrically switchable film (16) extending in a dispersion plane (18); and a luminescent film (20) extending, at a distance (D), in a luminescence plane (22) parallel to said plane (18). Several light-emitting diodes (24) are implanted on said film (20), the mutual spacing (A) between said diodes (24) being at least five times their transverse extent (Q). Said arrangement (2) is designed to be positioned in front of the window (8), in the direction of a line of sight (26) perpendicular to the plane (10) thereof, pointing towards a cabin (42) of the aircraft (6).The planes (18, 22, 10) extend in parallel, with film (20) interposed between window (8) and film (16). Window (8) and films (16, 20) are placed in aligned succession along line (26). A window arrangement includes window (8) and the aforementioned glazing arrangement (2). Figure to be published with the abbreviation: Fig. 1.

Description

Title of the invention: Aircraft glazing and window arrangements equipped with an improved lighting device

[0001] The present invention relates to a glazing arrangement for a window extending in a plane and embedded in the outer wall of an aircraft, as well as an aircraft window arrangement, equipped with an improved lighting device.

[0002] A window for an aircraft with a pressurized cabin is known from document DE 10 2014 003 365 A1, comprising an outer pane of glass, facing away from an internal space of the cabin in the assembled state, and an inner pane of glass facing said internal space, held in a frame such that an interstitial space is reserved between the outer and inner panes. To create a lighting function, one of said inner and outer panes of glass is provided with a first transparent layer made of organic light-emitting diodes (LEDs).

[0003] The present invention aims to propose improvements to a window in the outer wall of an aircraft.

[0004] This objective is achieved by the invention through a glazing arrangement for a window extending in a window plane and embedded in the outer wall of an aircraft, an arrangement characterized in that it comprises: a mechanically stable, optically transparent covering pane extending in a covering plane; a switchable film extending in a dispersion plane parallel to said covering plane, and which can be electrically switched between a transparent state and a diffusing state; and a luminescent film extending, at a distance perpendicular to said switchable film, in a luminescence plane parallel to said dispersion plane, a plurality of light-emitting diodes being implanted on said luminescent film, knowing that a mutual spacing, between two considered light-emitting diodes, represents at least five times the transverse extent of the latter,and by the fact that said glazing arrangement is configured so as to be positioned, in an assembly state conforming to its intended purpose, in front of the window in the direction of a line of sight perpendicular to the plane of said window, pointing towards the aircraft cabin, such that said dispersion plane, said luminescence plane and said window plane extend parallel to each other, that the luminescent film is interposed between the window and the switchable film, and that said window, said switchable film and said luminescent film are placed in succession aligned with said line of sight.

[0005] The glazing arrangement is intended for integration, or for use in a window conforming to its intended purpose, embedded in the outer wall of a aircraft, that is, its installation on and / or in front of said window in a mounted state. "Conforming to its intended purpose" means that the glazing arrangement is structurally coordinated with a specific window or window type and also, where applicable, with an aircraft and its exterior wall or cabin, for example, also with a window opening connected to said window and pointing towards the aircraft's cabin, and that said arrangement is intended for use in these areas by being designed, for example, among other things, to meet the geometric requirements thus determined. In other words, a window, a window opening, or other relevant element is presumed to be known, with regard to its geometry, among other things. The said window is, in particular, that of a passenger cabin of an aircraft, specifically a commercial airliner or a jet aircraft.

[0006] The invention is based on the consideration that the window extends in a plane. By "extends," it is meant that the window or its panes describe a surface. Said window, or its pane(s), may then be flat, or even have a slight curvature (as is common practice). This definition also rationally applies to the extent of other objects discussed below.

[0007] The glazing arrangement according to the invention comprises a mechanically stable, optically transparent overlay pane extending in a plane of overlap. "Mechanically stable" should then be understood as a boundary with respect to a flexible film. "Optically transparent" means that an observer can see through the overlay pane as through a conventional clear pane of glass; that, in this sense, the observer does not "see" the overlay pane itself during observation, and that it does not disturb or degrade their vision.

[0008] The glazing arrangement includes a switchable film that extends in a dispersion plane parallel to the overlapping or frontal plane, and that can be electrically switched between a transparent state and a diffusing state. A switchable film of this type is known, for example, as an electrochromatic switchable window film for building technology, according to Haverkamp Clickfilm® (registered trademark), "Electrochrome Folie für schaltbaren Sichtschutz" (Switchable Electrochromatic Film for Vision Protection), technical data sheet (PDF) entitled "haverkamp.de / de / sonnenschutz-und-folientechnologie / ar-chitektur / schaltbare-folien / produkt / haverkamp-clickfilm", downloaded on September 30, 2021. In the transparent state, an observer can look unobstructedly through the switchable film as through a conventional transparent pane of glass (see above).In its diffusive state, the switchable film causes a dispersion of varying intensity (depending on its diffusivity) of the light passing through it. In this respect, the said... For example, a film can be compared to a "frosted glass" pane which, admittedly, lets light through brilliantly in a more or less obstructed manner, but nevertheless disperses it.

[0009] The glazing arrangement further includes a luminescent film extending, at a distance perpendicular to the switchable film, in a luminescence plane parallel to the dispersion plane. A plurality of LEDs (for Light Emitting Diode), as well as incoming electrical conductors for powering and, optionally, for activating (brightness, color, etc.) said LEDs, are mounted on said luminescent film, the base sheet of which is transparent (see above). A mutual spacing (in the direction of the extent / in the plane of the extent of the film, respectively of the luminescence plane) between any two LEDs considered is at least five times the transverse extent of the latter, or even of an individual LED. In this case, said transverse extent is the maximum extent of an LED, likewise in the direction of the extent / in the plane of the extent of the film, respectively of the luminescence plane.The LEDs, in particular, have a size of 150 µm x 150 µm; they are arranged in a square grid forming a matrix, and are spaced approximately 5 mm apart. Thus, the luminescent film is a transparent film material covered with electrically contacting LEDs.

[0010] The glazing arrangement is designed so that, in the aforementioned mounting condition as intended, it is positioned in front of the window along a line of sight perpendicular to the plane of said window, pointing towards the aircraft cabin. More specifically, the dispersion plane, the luminescence plane, and the plane of said window are parallel to each other, the luminescent film is interposed between the window and the switchable film, and said window, switchable film, and luminescent film are arranged in a sequence aligned with said line of sight. This line of sight corresponds to the direction perpendicular to the window or its panes, i.e., to the plane of said window, along which an aircraft occupant observes outwards through said window from said aircraft.

[0011] Consequently, viewed from inside the aircraft cockpit (permanently from the mounted state), the luminescent film is respectively positioned behind or below the switchable film. When said switchable film is in the diffusion state and when the LEDs are activated, i.e., when they emit light, the light emitted by the LEDs towards the cockpit is therefore diffusely scattered across said switchable film, so that the latter appears as a backlit luminescent surface with unit illumination, and the individual light-generating LEDs (positioned behind it) are no longer identifiable. This results, in the cockpit, in a a particularly pleasant perception of light.

[0012] However, an observer remaining in the aircraft cabin can look at the window through the cover glass, the switchable film, and the luminescent film, and, through said window, outwards from said aircraft (in particular when the LEDs are disconnected and when said switchable film is transparent). Due to the distance then assigned to the observer, their perception of the LEDs and the conductors located on said luminescent film will be nonexistent, or not disruptive.

[0013] The glazing arrangement is designed, in particular, such that the switchable film takes the transparent state when the LEDs are disconnected / passive, i.e. do not emit any light; and that said switchable film takes the diffusion state when said LEDs are connected / active, i.e. emit light.

[0014] The LEDs are in particular designed to emit, in operation, light towards the switchable film, respectively towards the passenger compartment in the mounted state, therefore in the direction of the line of sight, and to cause in particular a uniform illumination of said switchable film.

[0015] In accordance with the invention, in other words, it is proposed to complete the window, in the direction of the aircraft cabin, by at least one additional pane of glass (covering glass) placed in front of said window, and by films (switchable film, luminescent film) functionally connected upstream, in order to obtain a functional "integral window" (window arrangement described below).

[0016] In a preferred embodiment, the switchable film is placed on the cover glass. It can then be selectively positioned on an inner face (facing away from the luminescent film, facing the passenger compartment in the mounted state), or on an outer face of said cover glass that is opposite the aforementioned face. In the mounted state, therefore, said inner and outer faces point, respectively, towards the passenger compartment and towards the window. The switchable film thus constitutes, in particular, a corresponding coating of the cover glass. Said switchable film is thereby held securely and adequately, which makes it unnecessary to provide additional restraint / stabilization / support for said switchable film.

[0017] In a preferred embodiment of this design, the switchable film is placed on the inner surface of the cover glass, as described above, and the luminescent film is placed on the outer surface of said cover glass. This similarly eliminates the need for a dedicated retainer / stabilizer / support for said luminescent film. This solution is particularly suitable when considering the diffusivity of the diffusing film (switchable film) and the material thickness of the window. Translucent (covering glass) is sufficient, so additional support material for films is not necessary. The inner and outer surfaces should be interpreted, by analogy, in the manner described above with regard to the covering glass.

[0018] In a preferred embodiment, the glazing arrangement includes a support pane that differs from the cover pane but is similarly transparent, as described above. The luminescent film is then placed on said support pane. The material / design and other parameters of said support pane may correspond to those of the cover pane. The preceding comments relating to said cover pane apply equally logically to said support pane. In this way, the luminescent film can, in particular, be placed at a sufficient distance from the switchable film, which, as said distance increases, allows for a more uniform dispersion, on said switchable film in its diffused state, of the light generated by said luminescent film (LED).

[0019] In a preferred embodiment of this design, the switchable film is disposed on an inner face of the support glass and the luminescent film is disposed on an outer face of said glass. The inner and outer faces are to be understood, by analogy, in the manner described above with respect to the cover glass. This allows the use of a cover glass on which neither the switchable film nor the luminescent film is disposed. In the event of damage to said cover glass (including, among other things, scratches, chips, for example), it can be easily replaced and said glass can serve as a simple and economical protective glass, facing the passenger compartment, for films occupying rear positions in this respect, respectively for the glazing arrangement, as well as for the window.

[0020] In a preferred embodiment, the luminescent film is designed to be placed on a pane of glass in the window when installed. When installed, or when a window is present, the luminescent film thus becomes an integral part of said window or is applied to it, in particular as a coating. In this embodiment, it is assumed that the window, as intended, has at least one pane of glass, in particular double or multiple glazing comprising two or more panes. When installed, said luminescent film is applied, in particular, to the inner surface (in the sense specified above) of the innermost pane of glass (pointing towards the aircraft cabin). The LED matrix film (luminescent film) can therefore also, in particular, be applied to the inner surface of the window.

[0021] In a preferred embodiment, at least two diodes, among the LEDs, can be electrically activated independently of each other. This allows create different lighting situations, for example different brightness patterns running through the glazing arrangement or intervening on the film switchable to the diffusion state, for example also colour patterns, among others, in the case where the LEDs are capable of emitting coloured light.

[0022] In a preferred embodiment, the switchable film can be additionally switched to an occlusion state. In the occlusion state, the switchable film allows less light to pass through than in the diffusion and / or transparency states. In particular, the incident light passing through the window is sufficiently blocked, in the mounted state, to produce, for example, a darkening effect on a passenger seated at the level of said window, comparable to lowering a blind. It is thus possible to forgo an additional blind on the window.

[0023] Alternatively, in the window arrangement (to achieve the same effect, with only one additional structural part), a separate additional pane / film could be provided which can be electrically switched between a state of transparency, comparable to that of the switchable film, and the state of occlusion.

[0024] The invention also relates to a window arrangement comprising the glazing arrangement proposed above and the window mentioned in this context. In the aforementioned assembled state, said glazing arrangement is then installed in front of said window in the direction of the line of sight perpendicular to the plane of the latter, pointing towards the aircraft cabin.

[0025] The window arrangement and at least some of its possible embodiments, as well as the respective advantages, have already been discussed in substance in the context of the glazing arrangement according to the invention.

[0026] In a preferred embodiment, as already described above, the luminescent film is implanted, in the mounted state, on a pane of glass in the window.

[0027] In a preferred embodiment, the window arrangement includes, in addition to the window, an additional part of the aircraft (in accordance with its intended use), namely a window opening that is recessed behind an interior wall of the aircraft and terminates at the level of the window (facing the aircraft's exterior wall), with the window arrangement being housed within this opening. It therefore does not require any additional integration space within the aircraft's interior space, such as a passenger cabin.

[0028] The cover pane forms, in particular, a flat extension of the inner wall, that is to say, it is located, in particular, flush with a front face of the window opening that points opposite said window. Alternatively, said cover pane occupies a position offset towards said window from of said inner wall / of said front face of the hopper. This implies solutions with respectively different optical designs which can be selected according to the user's preference.

[0029] The invention is based on the experiences, observations, and reflections respectively set forth below, and further presents the embodiments discussed below, which are also referred to in part as "the invention" for simplicity. They may also contain parts or combinations of the previously mentioned embodiments, or even correspond to them and / or also include, where appropriate, embodiments not yet mentioned.

[0030] According to the invention, natural luminosity (window light) is provided. By combining "LED matrix on a transparent substrate material (luminescent film)" technology and "switchable diffuser film (switchable film)" technology, transparent surfaces [the aforementioned windows / films] can be used as illuminating and informational surfaces, and the original function of transparency (when transparent / when the LEDs are inactive) can be preserved. The effect is based on the use of innovative technologies targeting lighting or visualization in aircraft.

[0031] The combination of the two technologies (switchable film / luminescent film) provides a new type of window lighting. Luminescent films, also known as "LED array films on a transparent substrate material (film)," consist of LEDs with a very small active luminous area (150 µm x 150 µm, for example) arranged, as an array, in a grid of, for example, 5 mm, and are placed on a transparent film representing a substrate film. When de-energized, said luminescent film / array appears transparent since the conductors (used for powering / activating the LEDs) and the LEDs are no longer visible to the human eye from a short viewing distance.

[0032] When powered, the very small luminous spots of the LEDs are visible. Therefore, a diffuser is beneficial. A simple diffusing material (with permanent diffusion) prevents transparency (observation through) the window. It is therefore more advantageous if said diffusing material can be mechanically moved away. This could, for example, be achieved with a blind, a curtain, or a sliding glass panel. However, it is optimal, as here proposed, if said diffusing material (switchable film) can be switched to transparency. Passively diffusing films (diffusing when de-energized) and passively transparent films (transparent when de-energized) are conceivable. If the switchable film is brought to a sufficient distance from the matrix of LED (luminescent film), the luminous spots of said LEDs dim when said switchable film is observed from the passenger compartment, in the diffusion state, and a homogeneous luminous surface is given on said switchable film.

[0033] The proposed solution results in a completely new perception of light within the aircraft. Corresponding individual activation of LEDs, possibly colored, allows, for example, animated sunrises or sunsets, or even the display of symbols or text. The basic functions of a conventional aircraft window (transparency and dimming, if applicable) are retained. The solution can be integrated into global lighting scenarios. The (enlarged) window, or window arrangement, becomes a lighting surface. Depending on the potential of the luminescent film used, it is possible to display color patterns, or even faded designs (for example, a sunrise to minimize jet lag after long-haul flights).The proposed solution requires no modifications to the interior lining or cabin paneling and can be implemented in all aircraft. It is also suitable for the retrofit market, for example, when replacing mechanical window shading with a window equipped with a diffusing film (switchable film). The functionalities offered by the glazing arrangement can be electrically controlled remotely, and therefore centrally operated. For example, cabin crew no longer need to individually ask each passenger to activate the window shading or bend over the seats to do so themselves; instead, they can centrally switch the window shading to transparency. This results in a positive effect on the lighting situation at the window location.

[0034] The proposed solution can certainly be implemented in a particularly advantageous way in aircraft, but can also, where appropriate, be used for windows or other transparent surfaces (partitions, for example) in other vehicles (bus, train, boat).

[0035] Thus, the proposed solution also relates to a lamp intended for the passenger compartment of a vehicle, a well-defined surface (a window, for example) being then transparent to view (transparent state, LEDs inactive), or serving as a luminous surface (diffusion state, LEDs active).

[0036] In vehicles such as buses, boats, trains, and aircraft, for example, transparent materials are used to achieve translucency (partitions, windows, for example). Thanks to the proposed solution, these transparent surfaces can be used as illuminating surfaces and in Formative, the original function of transparency can be preserved at the same time. The existing glass can then, in particular, fulfill the function of a cover pane. Consequently, the minimal solution consists of applying switchable and luminescent films to both sides of a cover pane and using, for example, in the vehicle, this pane as a modified partition that can be switched to transparent, or as a lighting device.

[0037] Other features, effects and advantages of the invention are highlighted by the description of preferred embodiments of the invention provided below, as well as by the schematic illustrations in the accompanying figures in which:

[0038] [Fig.1] is a cross-section of a side of an aircraft fuselage in the region of a window arrangement;

[0039] [Fig.2] shows, in cross-section, a variant of the glazing arrangement of the window arrangement conforming to [Fig.1], comprising a recessed cover pane and a variant arrangement of films on said cover pane;

[0040] [Fig.3] shows, in cross-section, a variant of the glazing arrangement conforming to [Fig. 1], including a film arrangement on the cover glass and a window of the window arrangement; and

[0041] [Fig.4] illustrates, in cross-section, a variant of glazing arrangement conforming to [Fig.1] with arrangement of films on a support glass.

[0042] Fig. 1 is a cross-section of a side of the fuselage of an aircraft 6. Said side of the fuselage includes an outer wall 4 of the aircraft 6, as well as a structural layer 5 (insulation, panels, etc.) not commented on in further detail, which terminates at the level of an inner wall 7 of a cabin 42 currently taking the form of a passenger cabin, and is symbolically evoked by hatching in this case.

[0043] A window 8 is embedded in the outer wall 4, a window through which passengers located in the cabin 42 can observe outwards from the aircraft 6 along a line of sight 26. A window hopper 46 integrated into the structural layer 5 extends along said line of sight 26, begins at the level of the inner wall 7 and ends at said window 8.

[0044] The window 8 extends in a plane 10 whose extent is respectively parallel or tangential to the outer wall 4 of the aircraft 6, in the region of said window 8, and which rises perpendicularly to the plane of the drawing on the [Fig.1].

[0045] A glazing arrangement 2, disposed in the window hopper 46 in a mounted state M, forms a window arrangement 40 in association with the window 8.

[0046] The glazing arrangement 2 contains a cover pane 12 which, in this case, is flat and extends in a cover plane 14 extending, in turn, parallel to the plane 10 of the window. The cover pane 12 then appears as a mechanically stable and optically transparent window, that is to say, as a translucent porthole. Said covering window 12 comprises an inner face 28 facing the internal space of the aircraft 6, currently towards the cabin 42, as well as an outer face 30 located opposite.

[0047] The glazing arrangement 2 includes a switchable film 16 which is disposed on the outer face 30 of the cover pane 12, to which it is rigidly applied in this case. Therefore, the switchable film 16 is also planar and extends in a dispersion plane 18. The switchable film 16 can be electrically switched between a transparent state ZT, a diffusing state ZD, and an occulting state ZU. In the transparent state ZT, the switchable film 16 is respectively transparent or translucent, like conventional clear glass; in the diffusing state ZD, it propagates incident light in the manner of frosted glass; and, in the occulting state ZU, it prevents the passage of light in the manner of a conventional blind in the closed position, used on aircraft windows and which can be, respectively, operated or raised and lowered manually.

[0048] The glazing arrangement 2 also includes a luminescent film 20 located at a distance D (perpendicular to the cover plane 14) relative to the switchable film 16. The luminescent film 20 is applied to a flat support glass 32 whose optical properties correspond to those of the cover glass 12, i.e. it is optically transparent. As a result, the said switchable film 16 also extends, with flatness, in a luminescence plane 22 extending parallel to the dispersion plane 18. Light-emitting diodes (LEDs) 24 are implanted on the luminescent film 20. These are arranged in a 5 mm x 5 mm cross matrix on the said luminescent film 20 which supports them, they are electrically connected by conductors not shown in [Fig.1] and are supplied, via these, with energy and control signals affecting the brightness and color of the light they emit.Only four of the 24 LEDs are illustrated as examples in [Fig. 1]. A spacing A between these 24 LEDs measures 5 mm in the case considered. The 24 LEDs themselves have square dimensions of 150 µm x 150 µm and, consequently, a transverse span Q of 150 µm.

[0049] In the assembled state M, the glazing arrangement 2 pointing towards the passenger compartment 42, i.e., towards the passenger cabin, is located in front of the window 8 in the direction of the line of sight 26 perpendicular to the plane 10 of said window. The luminescence plane 22, the dispersion plane 18, and said plane 10 of the window extend parallel to each other, and the luminescent film 20 is interposed between the window 8 and the switchable film 16. Said window 8, said switchable film 16, and said luminescent film 20 are placed in succession aligned with said line of sight 26.

[0050] The LEDs 24 can be electrically activated independently of each other, so that a sunrise can be simulated in the vertical direction (relative to the respective floor of the passenger compartment 42 or cabin). To this end, said LEDs 24 are activated to emit light at different heights and in different colors in order to generate, in the diffusion state ZD, a color pattern starting with dark blue at the bottom, passing through light blue towards the top, then changing from red to orange on the switchable film 16.

[0051] In [Fig. 1], the glazing arrangement 2 is housed in the window hopper 46, of which it forms a flush termination towards the cabin 42. In other words, the cover glass 12 comes flush with the inner wall 7 of the fuselage side.

[0052] Figure 2 shows an alternative embodiment of a glazing arrangement 2. In this case, said arrangement 2 is recessed towards the window 8, within the opening 46 of said window, i.e., the cover pane 12 is located behind the inner wall 7 when moving away from the passenger compartment 42. The switchable film 16 and the luminescent film 20 are then applied, respectively, to the inner face 28 and the outer face 30 of said cover pane 12. The LEDs 24 are not shown in Figures 2 to 4, in order to provide a clear overview. Therefore, the support pane 32 is omitted.

[0053] Figure 3 shows a different embodiment of a glazing arrangement 2. The luminescent film 20 is then applied to an inner face 34 of a pane of glass 52 of the window 8. The switchable film 16, on the other hand, is placed on the outer face 30 of the cover pane 12, as in Figure 1. The support pane 32 is also omitted in this case.

[0054] Figure 4 illustrates yet another embodiment of a glazing arrangement 2. The switchable film 16 and the luminescent film 20 are then applied, respectively, to an inner face 48 and to an outer face 50 of the support glass 32. In the present case, the cover glass 12 is an embodiment without functional films (films 16 and 20), and serves only to protect the rest of said glazing arrangement 2 in the direction of the passenger compartment 42.

[0055] It goes without saying that many modifications can be made to the invention as described and represented, without departing from the scope of the latter.

[0056] The following elements, parts, objects, and components are referenced in the figures of the attached drawings:

[0057] 2: Glazing arrangement

[0058] 4: outer wall of the aircraft

[0059] 5: structural layer

[0060] 6: aircraft

[0061] 7: interior wall of the passenger compartment

[0062] 8: ?enter

[0063] 10 window plane

[0064] 12 cover glass

[0065] 14 cover plane

[0066] 16 switchable film

[0067] 18 dispersion plane

[0068] 20 luminescent film

[0069] 22 luminescence plane

[0070] 24 light-emitting diodes

[0071] 26 passenger line of sight

[0072] 28 inner face of cover glass

[0073] 30 outer face of cover glass

[0074] 32 support glass

[0075] 34 inner face of glass [second embodiment]

[0076] 40 window arrangement

[0077] 42 aircraft cabin

[0078] 46 window opening

[0079] 48 inner face of the support glass [third embodiment]

[0080] 50 outer face of the support glass [third embodiment]

[0081] 52 window glass [second embodiment]

[0082] M: mounted state of the glazing arrangement

[0083] ZD: diffusion state of the switchable film

[0084] ZT: transparency state of the switchable film

[0085] ZU:Opacity state of the switchable film

[0086] D: distance between the switchable film and the luminescent film

[0087] A: spacing between the light-emitting diodes

[0088] Q: transverse extent of the light-emitting diodes

[0089] Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications remain possible, particularly with regard to the construction of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

Demands

1. Glazing arrangement (2) for a window (8) extending in a window plane (10) and embedded in the outer wall (4) of an aircraft (6), arrangement characterized in that it comprises: a mechanically stable, optically transparent cover pane (12) extending in a cover plane (14); a switchable film (16) extending in a dispersion plane (18) parallel to said cover plane (14), and which can be electrically switched between a transparent state (ZT) and a diffused state (ZD); and a luminescent film (20) extending, at a distance (D) perpendicular to said switchable film (16), in a luminescence plane (22) parallel to said dispersion plane (18), a plurality of light-emitting diodes (24) being implanted on said luminescent film (20), knowing that a mutual spacing (A), between two light-emitting diodes (24) considered,represents at least five times the transverse extent (Q) of the latter, and by the fact that said glazing arrangement (2) is configured so as to be disposed, in an assembly state (M) conforming to its intended purpose, in front of the window (8) in the direction of a line of sight (26) perpendicular to the plane (10) of said window, pointing towards the cockpit (42) of the aircraft (6), such that said dispersion plane (18), said luminescence plane (22) and said plane (10) of the window extend parallel to each other, that the luminescent film (20) is interposed between the window (8) and the switchable film (16), and that said window (8), said switchable film (16) and said luminescent film (20) are placed in succession aligned with said line of sight (26).

2. Glazing arrangement (2) according to claim 1, characterized in that the switchable film (16) is disposed on the cover glass (12).

3. Glazing arrangement (2) according to claim 2, characterized in that the switchable film (16) is disposed on an inner face (28) of the cover glass (12) and the luminescent film (20) is disposed on an outer face (30) of said cover glass (12).

4. Glazing arrangement (2) according to any one of claims 1 and 2, characterized in that said glazing arrangement (2) includes a support pane (32) which differs from the cover pane (12), and on which the luminescent film (20) is disposed.

5. Glazing arrangement (2) according to claim 4, characterized in that the switchable film (16) is disposed on an inner face (48) of the support glass (32) and the luminescent film (20) is disposed on an outer face (50) of said support glass (32).

6. Glazing arrangement (2) according to any one of the preceding claims, characterized in that the luminescent film (20) is designed to be disposed on a pane (52) of the window (8) in the mounted state (M).

7. Glazing arrangement (2) according to any one of the preceding claims, characterized in that at least two diodes, among the light-emitting diodes (24), can be electrically activated independently of each other.

8. Glazing arrangement (2) according to any one of the preceding claims, characterized in that the switchable film (16) can be additionally switched to an occultation state (ZU).

9. Window arrangement (40), comprising a glazing arrangement (2) according to any one of claims 1 to 8 and a window (8) in front of which said glazing arrangement (2) is implanted in the mounted state (M), in the direction of a line of sight (26) pointing towards the cockpit (42) of the aircraft (6).

10. Window arrangement (40) according to claim 9, characterized in that said window arrangement (40) encompasses a window hopper (46) which is set back below an internal wall (7) of the aircraft (6) and terminates at the level of the window (8), said window arrangement (40) being housed inside said window hopper (46).

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