Multi-pane glass or insulating glass vision element, in particular window and / or facade element, production method and a use of the multi-pane glass or insulating glass vision element

Abstract

Functional multi-pane insulating glass vision element, in particular window and / or facade element, production method and use of the functional multi-pane insulating glass vision element. The invention relates to a multi-pane glass, in particular insulating glass, vision element, in particular for a window and / or facade element for an installed state in a facade or in an interior design of a building room, comprising: - at least one first glass pane and a second glass pane and a pane intermediate space located between and spacing apart the first glass pane and the second glass pane, wherein the first glass pane and the second glass pane with the spacing-apart pane intermediate space are spaced apart by means of a spacing element. According to the invention, it is inter alia provided that - a plurality of spangles are arranged in the multi-pane glass vision element thereby achieving an appearance (E), wherein the plurality of spangles are applied, in particular directly, on an inner side of one of the glass panes of the multi-pane glass vision element, said inner side facing the pane intermediate space.

Description

[0001] Multi-pane glass or insulating glass visible element, in particular window and / or facade element, manufacturing method and use of the multi-pane glass or insulating glass visible element

[0002] The invention relates to a multi-pane glass visual element, in particular an insulating glass visual element, according to the preamble of claim 1, in particular a multi-pane glass or insulating glass visual element with a further functional feature. The multi-pane glass or insulating glass visual element is preferably designed with an additional visual functionality, in particular with a bird protection function. The invention also relates to a window and / or facade element for an installed state in a facade or in the interior design of a building space.

[0003] The invention also relates to a manufacturing method for the multi-pane insulating glass viewing element and a use of the multi-pane glass or insulating glass viewing element, in particular as a window and / or facade element, for further functional effect, preferably with a bird protection viewing functionality.

[0004] Glass or presentation materials that are transparent on one side are already known from the prior art. A preferred effect, however, is one-sided transparency, which is based on the fact that these glasses or display boards have a layered structure with a light-absorbing coating on one side and a large number of openings. Viewed from this light-absorbing side, the insert appears transparent, while the other side is reflective and thus prevents visibility from this side. This circumstance can be used for a preferred viewing functionality; in particular, the invention relates to a functional multi-pane insulating glass viewing element based on this principle. Viewing functions, and in particular viewing functions with a broader functional effect, are becoming increasingly important; glass that is visible to birds, in particular, should be available as a highly effective solution.However, several boundary conditions must also be taken into account.

[0005] US 2009 / 0169795 A1 describes layered structures of a similar type, which are formed as dot matrix films or fabrics, in particular as metallic fabrics, which could then be coated on one side with light-absorbing material. Light-absorbing black fabrics made of monofilaments with a metallic coating on one side or printed glass with a reflective coating are also known.

[0006] While printed glass or similar materials have so far been the preferred solution in the glass industry, printed glass with a visual function or a more extensive functional effect, particularly as a bird protection solution, always requires printing on an external position (in FIG. 1A, view (b), designated as glass surface Pos1), i.e., on the outside of the glass pane. This makes this solution more exposed to contamination, raising the question of warranty. Printing also requires a rather complex manufacturing process, which includes tempering the glass pane – this is energy-intensive and may be associated with a deterioration in glass quality (keyword: "roller waves").

[0007] Furthermore, a print that can be classified as highly effective protection against bird strike requires, above all, a specific printed area, resulting in a significantly excessive coverage of the glass surface. Depending on the color and application, this will generally require a coverage level of more than 15%. This is demonstrated, for example, by a result that can be found in the brochure https: / / voqelqlas.voqel-warte.ch / downloads / files / broschueren / Glasbroschuere 2022 D.pdf on page 39 for versions No. 1 and No. 2 – there, the coverage levels of printing solutions are always 20-25% or 11%, associated with a correspondingly disturbing effect on the human eye.

[0008] A so-called laminated glass or laminated glass element is a composite of at least two flat glass panes bonded by a tear-resistant and tough-elastic laminating film. Such glass is used primarily in the construction industry, primarily as facade elements, but with appropriate safety features, also as window and / or facade elements. With appropriate adhesion, laminated glass is classified as laminated safety glass. Laminated glass is known from the state of the art, for example, from DE 23 13 278 A and DE 20 2008 008 318 U1.

[0009] Laminated safety glass (LSG) generally refers to a glass composite consisting of two glass panes and a film. WO 2019 / 038288 A1, filed by the applicant, describes a laminated glass viewing element that uses a laminated glass comprising a first and a second glass pane and a laminated film composite comprising a first and a second laminating film arranged between the first and second glass panes and bonded to them. The special feature of the viewing functionality of the laminated glass viewing element lies in the fact that a plurality of sequins with a first light-absorbing surface are arranged between the first and second laminating films, the sequins facing the light-absorbing surface of the first laminating film and spaced apart from one another such that the laminated glass appears transparent when viewed from the side of the light-absorbing surface of the sequins.

[0010] Sequins are only known in the field of clothing and are only described, for example, in DE 230 759 and DD 295 720 A5 as reflective plates in the field of clothing.

[0011] According to WO 2019 / 038288 A1, it is surprisingly shown that the incorporation of sequins into the laminated glass visible element can be particularly advantageously achieved via the laminated film composite contained therein, which offers particular advantages in several respects. Among other things, the laminated glass visible element according to WO 2019 / 038288 A1, as a window and / or facade element, can also preferably be equipped with a bird protection visual functionality, as described in US 2020 / 0262185 A1. The solution of sequins in the laminated glass visible element according to WO 2019 / 038288 A1, which is laminated between glass and also protected within the composite, requires a surprisingly low and comparatively significantly lower degree of coverage for effective bird protection; This is shown, for example, by a result from the brochure https: / / voqelqlas.voqelwarte.ch / downloads / files / broschueren / Glasbro- schuere 2022 D.pdf on page 39 for versions No. 3 or No. 6 to No.8 - a highly effective bird protection function can be achieved with a coverage level of just 0.8%. The solution described in WO 2019 / 038288 A1 sets new standards here with a coverage of less than 1% -- and the fact that it is not arranged on the glass surface Pos1, which is described in more detail in FIG. 1A, view (b).

[0012] However, this solution, which is in itself extremely advantageous, always requires the use of laminated glass; this generally entails higher costs, at least due to the additional laminated glass pane and the additional laminated film, as well as costs for the lamination process, which can also be particularly energy-intensive.

[0013] The starting point for any type of glass facade, however, is the individual pane of glass, i.e., single-pane glass; preferably, float glass. Single-pane glass can be provided primarily as untempered or non-tempered single-pane glass; for the sake of simplicity, such general single-pane glass will be referred to below as "untempered single-pane glass" or "float glass," plain glass, simple flat glass, float glass, or flat glass.

[0014] Toughened glass in tempered form is referred to as toughened safety glass (ESG) or partially toughened glass (TVG). The latter is often used as laminated or laminated safety glass. If toughened safety glass breaks, it shatters into small, approximately 10 mm-sized pieces with blunt edges. If partially toughened glass (TVG) breaks, larger pieces form, and the cracks extend to the edge of the glass. A residual load-bearing capacity is retained.

[0015] For example, laminated safety glass offers several safety features (impact resistance, significantly lower risk of injury from splinters, residual load-bearing capacity after partial breakage) compared to a simple flat glass pane. This is due to the lamination film used in the laminated safety glass, which is usually permanently bonded to the glass panes under the influence of heat and pressure, and sometimes under vacuum. The adhesion within the laminate is crucial for the classification of laminated glass as laminated safety glass.

[0016] Particularly for facade designs, but also for glass walls in interior areas, there is a growing demand for glass that is only transparent or see-through from the interior, while also meeting safety requirements. At the same time, architects and building owners in particular need the greatest possible design freedom when designing the appearance of the facade. State-of-the-art layered structures, such as those from US 2009 / 0169795 A1, such as fabrics with a light-reflecting coating on one side or dot matrix films can be used as inserts in laminated safety glass, but they limit the adhesion of the laminate and can only be produced in limited widths, which severely restricts their use, especially for large-area glass facade elements. In addition, coated fabrics can only be produced over the entire surface and with the same mesh openings per glass pane.

[0017] In contrast, the fracture behavior of untempered single-pane glass (float glass) is not as controllable as that of safety glass; however, it is clear that in many applications, tempered single-pane glass, and especially single-pane safety glass, is not absolutely necessary - especially untempered single-pane glass (hereinafter sometimes referred to as simple float glass) is nevertheless of great interest, as it turns out.

[0018] It is also apparent that there is an increased demand for a multi-pane glass or insulating glass viewing element, particularly one that is more functional in a broader sense; in particular, a functional viewing element of a double-pane or triple-pane glass or insulating glass viewing element, preferably comprising or consisting of non- or predominantly non-tempered and / or non-hardened single-pane glass, i.e. unhardened single-pane glass in the general sense described above (hereinafter also sometimes simply referred to as float glass).

[0019] A considerable portion or majority of common window and / or facade elements—even without safety features—are used as simple multi-pane or insulating glass units; that is, with untempered single-pane glass in the general sense described above (sometimes referred to simply as float glass below). In the context of a simple double-pane insulating glass unit, the term "simple double glazing" or "simple double-pane insulating glass" is also used. Similarly, in the context of a triple-pane or insulating glass unit, the term "triple glazing" is also used.

[0020] This is, in particular, an unprotected (i.e., without security features) window and / or facade element that consists of two panes of untempered single-pane glass separated by a cavity. These two panes and the cavity are often framed—for example, to resemble a standard window. It is common practice to fill the cavity with an insulating gas such as argon or krypton. These are hermetically sealed, but without a vacuum.

[0021] There are also vacuum insulating glass units; if the cavity between the panes is vacuum-sealed, it is referred to as vacuum insulating glass. Accordingly, the above terms apply analogously to a triple-pane glass or insulating glass unit when three panes are installed. The same applies to the multi-pane glass or insulating glass units mentioned above.

[0022] A current overview of the various products, including so-called vacuum insulating glass (VIGs), can be found at https: / / www.tu-darmstadt.de / qlass-cc / forschunq / forschunqsqebiete / produkte / pro- dukte.de. isp.

[0023] It turns out that retrofitting film over films on the exterior of existing window facades, known as bird strike protection, or the printing of glass panes as previously discussed—whether as a replacement or as a new construction element—practically always involves partial or full filming. Retrofitting glass panes is often not possible. Applying printed bird protection film is often difficult due to the high degree of coverage and high absorption, which entails the risk of thermal breakage of the glass pane.

[0024] Other glass treatments also always require partial or complete bonding, which is complex and usually impossible for the user to perform themselves. This, along with the use of equipment such as lifting platforms and the dependence on weather conditions, results in high costs. Another problem is that such solutions are usually exposed to the elements, making them unsustainable or impairing the visual impression.

[0025] It is also desirable to provide an advantageous visual function for multi-pane glass or insulating glass elements, and thus to provide an improved, particularly functionally configurable multi-pane glass visual element, particularly in the form of a window and / or facade element for installation in a facade or in the interior design of a building. This should advantageously be possible without increasing the number of glass processing steps and thus the necessary energy consumption. This should advantageously be possible, above all, based on untempered single-pane glass in the general sense described above (hereinafter sometimes also referred to simply as float glass).

[0026] This is where the invention comes in, the object of which is to provide an improved multi-pane glass visual element, in particular for a window and / or facade element for an installed state in a facade or in the interior design of a building space, in particular with an additional functional effect, preferably with a bird protection visual functionality, in particular with a bird protection visual functionality that can be classified as highly effective. This improved multi-pane glass visual element should, on the one hand, be sustainable and not only offer an optimized visual impression, but, on the other hand, also offer optimized design freedom for facade or interior design that is sustainable. Above all, the multi-pane glass visual element should be possible based on untempered single-pane glass in the general sense above (hereinafter sometimes also referred to simply as float glass).

[0027] The problem is solved by a one-sided transparent, in particular broadly functional, multi-pane glass viewing element, in particular a multi-pane insulating glass viewing element, as claimed in claim 1. The transparent, in particular broadly functional, multi-pane glass viewing element is particularly designed for a window and / or facade element. The transparent, in particular broadly functional, multi-pane glass viewing element preferably has a bird protection viewing functionality, in particular a bird protection viewing functionality that can be classified as highly effective. Advantageously, the multi-pane glass viewing element comprises or consists of single-pane glass based on untempered single-pane glass in the above general sense (hereinafter also sometimes referred to as simple float glass).

[0028] The invention also leads to a window and / or facade element of claim 24 for an installed state in a facade or in an interior design of a building space, comprising a multi-pane glass viewing element.

[0029] The invention also leads to a use of claim 27 for the functional multi-pane glass viewing element, in particular as a window and / or facade element, preferably with a bird protection viewing functionality.

[0030] The object is achieved according to a first aspect of the invention by the said multi-pane glass viewing element, in particular multi-pane insulating glass viewing element, of claim 1, in particular for a window and / or facade element for an installed state in a facade or in an interior design of a building space.

[0031] The multi-pane glass viewing element features:

[0032] - at least one first glass pane and one second glass pane and a space between the first glass pane and the second glass pane, wherein the first glass pane and the second glass pane are kept at a distance from each other by means of a spacer structure and the space between the panes.

[0033] According to the invention, it is provided that

[0034] - a plurality of sequins are arranged in the multi-pane glass viewing element to achieve an appearance (E), wherein

[0035] - a sequin has a light-absorbing surface and a light-reflecting surface, and in the installed state of the multi-pane glass visible element, the light-absorbing surface is intended to face a building interior and the light-reflecting surface is intended to face a building exterior, and

[0036] - the sequins are arranged at a distance from one another in such a way that the multi-pane glass viewing element appears transparent when viewed on the side of the light-absorbing surface of the sequins and appears less transparent when viewed on the side of the light-reflecting surface of the sequins, whereby

[0037] - the plurality of sequins are applied, in particular directly, to an inner side of one of the glass panes of the multi-pane glass viewing element facing the space between the panes.

[0038] In a further development, the sequins are particularly advantageously applied to one of the first glass panes and the second glass pane of the multi-pane glass viewing element.

[0039] The plurality of sequins are particularly advantageously applied directly to the inner side of one of the glass panes of the multi-pane glass visible element, facing the space between the panes. This particularly advantageously encompasses the fact that, in a further development, the plurality of sequins are applied directly to the inner side of one of the glass panes facing the space between the panes. In an alternative development, the plurality of sequins can also be applied directly to a coating on the inner side of one of the glass panes facing the space between the panes.

[0040] The invention has recognized and made it possible, by applying the plurality of sequins, in particular directly, to an inner side of the first and / or second glass pane facing the cavity between the panes, to offer, on the one hand, sustainable visual functionality with an optimized visual impression in the multi-pane visual element, while, on the other hand, also offering optimized design freedom for facade or interior design. The sequins, and thus the entire multi-pane glass, in particular the insulating glass, visual element, are protected from weathering and mechanical stress, e.g., scratching off the dots by children.

[0041] In the one-sidedly transparent, particularly broadly functional, multi-pane glass or insulating glass visual element, in particular a window and / or facade element, preferably with a bird protection visual functionality, the first and second glass panes as well as a space between the first and second glass panes are preferably substantially optically transparent or see-through. The distances between the plurality of spaced-apart sequins are thus preferably substantially optically transparent or see-through, so that the multi-pane glass visual element, in particular the multi-pane insulating glass visual element, is largely optically transparent or, in principle, see-through only at the distances.

[0042] However, light-absorbing structures, such as black or dark structures, are blocked out by the human eye, especially when the contrast to their surroundings is high; to an observer, the structures appear to be color-neutral compared to the surroundings and are not perceived.

[0043] This is different with reflective, bright structures; these stand out to the viewer. This means that, for example, a window pane with a large number of black stripes is transparent to the viewer, allowing them to clearly perceive the environment behind the pane. However, with a large number of bright, reflective stripes in this arrangement, the viewer perceives the stripes clearly, while the environment behind the pane is less or not at all perceptible. The bright structures form a lower contrast to the surroundings than the black ones, so the background behind the bright structures is perceived less strongly and blurs with the bright structures.The invention includes the knowledge that the above-mentioned object and, above all, the above-mentioned further functional effects can be better achieved by using a large number of sequins, by means of which the coverage is lower compared to dot matrix films.

[0044] The use of a large number of sequins and also the use of individual sequins, which, unlike previously known dot matrix films or fabrics, do not have an interconnected structure, creates significantly greater freedom in arrangement and shape, thus limiting design freedom only to the extent that transparency is maintained only on one side. The use of sequins also allows for simple production; this particularly applies to the representation of structures that vary across the length of a pane, such as larger spacing between sequins the higher the facade is. The use of plastic films is not necessary; the sequin dots are applied directly to the glass pane by machine.

[0045] This so-called "on-glass" solution, explained here for the first time, sets new standards. As can be seen, a highly effective bird protection function is already possible with a coverage of no more than 5%, and in particular no more than 3%. In particular, the coverage mentioned for a highly effective bird protection function can be less than 2%, preferably less than 1%, especially less than 0.5%. Furthermore, the solution advantageously eliminates the need for full-surface bonding of the window surfaces, and it is not exposed to the weather and is protected from mechanical stress.

[0046] By applying the individual sequins directly to a glass pane, e.g., to the inner side of a first glass pane as the outer pane, the laminating films required for lamination are eliminated. This eliminates this and the associated energy-intensive lamination process with a second glass pane. Laminating films for laminated glass are tear-resistant and tough, using materials such as polyvinyl butyral (PVB), ethylene-vinyl acetate (EVA), polyurethane (PU), or ionoplasts or ionomers—polymer materials with ionic bonds between the macromolecules in addition to the usual secondary valence bonds.

[0047] In the context of the present invention, sequins are understood to be thin single- or multi-layered platelets. Light-absorbing means an absorption of visible light of at least 60%. Structures or materials described as light-absorbing appear black or at least very dark to the human eye. It has been shown that even with a relatively open grid (such as a 9 / 70mm grid, i.e. sequins with a diameter of 9 mm on a square dot grid with an edge length of 70 mm) and a correspondingly low coverage of at least less than 3%, highly effective bird protection is already achieved. The above example of a 9 / 70mm grid already makes highly effective bird protection possible with a coverage of only 1.25%. It has been shown that even with a very open grid - such as a 9 / 90mm grid (i.e.Sequins with a diameter of 9 mm on the corners of a square dot grid with an edge length of 90 mm) and a correspondingly even lower coverage (of at least less than 1% - the above example of a 9 / 90 mm grid makes effective bird protection possible with a coverage of only 0.8% or less), highly effective bird protection is already achieved.

[0048] “Coverage” refers to the surface coverage of the sequins on glass in relation to a unit glass surface.

[0049] Advantageous further developments of the invention are described below. The additional features of the exemplary embodiments can be combined with one another to form further developments, unless they are expressly described as alternatives to one another in the description.

[0050] It is advantageous that the glass panes of the multi-pane glass viewing element consist of untempered single-pane glass, in particular simple float glass.

[0051] In an advantageous first development, it is provided that at least the first glass pane and the second glass pane, in particular optionally a third glass pane, is formed as an unhardened single-pane glass, in particular simple float glass.

[0052] In an advantageous second development, it is provided that at least the first glass pane is formed as laminated glass with unhardened single-pane glass, in particular simple float glass, or laminated safety glass, and the second glass pane, in particular optionally a third glass pane, is formed as an unhardened single-pane glass, in particular simple float glass.

[0053] The application of the sequins enables the use of non-tempered glass panes—the aforementioned unhardened single-pane glass, especially simple float glass. This eliminates the energy-intensive tempering process. The sequins can be applied in the float glass factory, especially before cutting to the strip size. The application of the sequins thus enables the use of non-tempered glass panes in the strip size format, especially before cutting to the size; as explained, this particularly applies to simple float glass.

[0054] The aforementioned refinement also has the advantage that an additional pane of glass—required for laminated glass—can be largely eliminated. Furthermore, a lamination process becomes unnecessary if the sequins are applied directly to untempered single-pane glass. The resulting additional energy and CO2 consumption during production can be advantageously avoided. Furthermore, since single-pane glass is thinner than laminated glass, the resulting weight on a facade is avoided.

[0055] Advantageously, as already explained above, the plurality of sequins are applied, in particular directly, to the inner side of one of the glass panes facing the space between the panes, in particular the first and / or second glass pane. Alternatively, in a further development, the plurality of sequins can be applied directly to a coating of the inner side of one of the glass panes facing the space between the panes, in particular the first and / or second glass pane. Examples of both variants are explained in the exemplary embodiments with reference to the figures.

[0056] Advantageously, the plurality of sequins can be applied exclusively to the inner side of the first and / or second glass pane facing the space between the panes, in particular exclusively to the inner side of the first and / or second glass pane of a two-pane glass panel facing the space between the panes or of a three-pane glass panel. This has the advantage that the sequins can be exposed to the outside as close as possible to the exterior—largely unhindered by any glass coating in front of them.

[0057] It is advantageous that

[0058] - in the installed state of the multi-pane glass visual element, the first glass pane is provided as an outer pane, facing an exterior space of the building and the second glass pane is provided as an inner pane, facing an interior space of the building.

[0059] It is advantageously provided that, in order to design the multi-pane glass viewing element as a two-pane glass viewing element, the first glass pane and the second glass pane are the only glass panes of the multi-pane glass viewing element. It is advantageously provided that, in order to design the multi-pane glass viewing element as a three-pane glass viewing element, the multi-pane glass viewing element, in addition to the first glass pane and second glass pane, has a third glass pane, as well as a space between the second glass pane and the third glass pane, which space them apart, the second glass pane and the third glass pane being kept at a distance by means of a spacer structure, the third glass pane being provided as the inner pane, facing the interior of a building.

[0060] In other words, it is advantageously provided that, following the second glass pane, a further space between the panes is kept at a distance with a third glass pane having the spacer structure, in order to form the multi-pane glass viewing element as a three-pane glass viewing element.

[0061] It is advantageously provided that the spacing structure is formed as a peripheral frame for the first and second glass panes, optionally also the third glass pane, by means of which the first and second glass panes, optionally also the third glass pane, are held at a distance.

[0062] It is advantageously provided that the space between the panes separating the first and second glass panes, and optionally also the further space between the panes separating the second glass pane and third glass pane, is free of air in order to form the multi-pane glass viewing element as a multi-pane insulating glass viewing element.

[0063] It is advantageously provided that for an insulating glass viewing element, the entire space between the panes or the number of spaces between the panes - in this case the space between the panes and / or the further space between the panes - is filled with insulating gas, in particular argon or krypton, or is free of air, in particular is provided with a vacuum, preferably for insulating the multi-pane glass viewing element and forming it as a multi-pane insulating glass viewing element.

[0064] Advantageously, the first and second glass panes, optionally also the third glass pane, are held at a distance by the spacer structure comprising one or more spacer elements in the spaced-apart gap between the panes in the pane viewing area. Advantageously, the spacer element is formed by one or more, in particular all, of the plurality of sequins on the first and / or second glass panes, in particular, one sequin forms a spacer element.

[0065] It is advantageous that a sequin for forming a spacer element is flat and the sequin has a height that extends over the space between the panes.

[0066] It is advantageous that for a vacuum insulating glass viewing element, the space between the panes is provided entirely or partially with a vacuum in order to form the multi-pane glass viewing element as a multi-pane vacuum insulating glass viewing element.

[0067] Advantageously, a sequin is applied, in particular directly, to an inner side of the first and / or second glass pane facing the space between the panes, using an adhesive or similar adhesive. Optionally, a sequin is applied, in particular directly, to an inner side of the second and / or third glass pane facing the further space between the panes, using an adhesive, adhesive, or similar application means.

[0068] Advantageously, it is provided that in the multi-pane glass viewing element, the light-reflecting surface of a sequin is metallically or metal oxide-reflecting, and / or in which the light-absorbing surface of a sequin is black.

[0069] It is advantageously provided that in the multi-pane glass viewing element, a sequin has a layer structure comprising a decorative film and a light-absorbing layer.

[0070] It is advantageously provided that in the multi-pane glass viewing element the decorative film comprises a metallically or metal oxide reflecting polymer film and / or in which the light-absorbing layer is a light-absorbing plastic film or a light-absorbing coating of the decorative film.

[0071] Advantageously, a sequin is applied, in particular directly, to an inner side of the first glass pane facing the space between the panes, which is provided as the outer pane to face the exterior of the building, wherein the sequin is applied with its second light-reflecting surface, in particular directly, to the inner side of the first glass pane facing the space between the panes, in particular based on the fact that the light-reflecting surface of the sequin carries an adhesive. The first glass pane can particularly preferably be formed as a glass pane made of untempered single-pane glass, in particular simple float glass, as in FIG. 2A, FIG. 2C, FIG. 2D, or as a laminated glass pane with untempered single-pane glass, in particular simple float glass, as in FIG. 2E, FIG. 2G, FIG. 2H. Further particularly preferred exemplary embodiments of this development are shown in particular in FIG.3 in view (a) and (b) and FIG. 5 in view (b) and explained with advantages.

[0072] Advantageously, in one variant, a sequin is applied, in particular directly, to an inner side of the second glass pane facing the space between the panes, which is intended as an inner pane to face the interior of a building, wherein

[0073] - the sequin is applied with its first light-absorbing surface, in particular directly, to the inner side of the second glass pane facing the space between the panes, in particular based on the fact that the light-absorbing surface of the sequin carries an adhesive. The first glass pane can particularly preferably be formed as a glass pane of untempered single-pane glass, in particular simple float glass, as in FIG. 2B, or as a laminated glass pane with untempered single-pane glass, in particular simple float glass, as in FIG. 2F. Further particularly preferred embodiments of this development are shown in FIG. 4 and FIG. 5 in view (a) and explained with advantages.

[0074] Preferably, the inner side of the glass pane facing the interpane cavity of the glass pane opposite the glass pane decorated with sequins has a glass coating. In other words, the inner sides adjacent to the "front" interpane cavity bordering the first glass pane as the outer pane—that is, the interpane closest to the exterior—are to be used preferentially, either for an application of sequins or a coating. This has the advantage that the sequins can thus exert a particularly clearly recognizable functional effect on the outside, since they are arranged "closest to the exterior."

[0075] The sequins are also advantageously applied to the glass pane opposite the coated glass pane; this avoids the effect of the coating being reduced. If the inside of the first glass pane is preferably coated with sequins, the inside of the second glass pane is coated. If the inside of the first glass pane is also preferably coated, the inside of the second glass pane is coated with sequins. In the latter case, the lateral spacing of the sequins should be narrower than the lateral spacing of the sequins in the first case.

[0076] In particular in the context of a combination with one of the aforementioned developments and also generally and independently thereof, it has proven advantageous that in a group of developments mentioned here as the first embodiment -- for example explained with reference to the exemplary embodiments in FIG. 2A, FIG. 2B and FIG. 2E, FIG. 2F and FIG. 5 -- a sequin is applied directly to an inner side of the first or second glass pane facing the space between the panes, ie in the present case without a coating lying between the glass pane and the sequin.

[0077] In particular, in a further development, a coating can optionally be arranged on the sequin, as explained with reference to the embodiments in FIG. 2C, FIG. 2G and FIG. 3 and FIG. 4.

[0078] In particular in the context of a combination with one of the aforementioned developments, as well as generally and independently thereof, it has proven advantageous that in a group of developments mentioned here as the second embodiment -- for example explained with reference to the embodiments in FIG. 2D and FIG. 2H -- a sequin is applied to an inner side of the first or second glass pane facing the space between the panes and, in this case, to a coating lying between the glass pane and the sequin.

[0079] In particular in combination with one of the aforementioned developments, as well as generally and independently thereof, it has proven advantageous that in a group of developments mentioned here as the second embodiment -- explained for example with reference to the exemplary embodiments in FIG. 6A and FIG. 6B -- a sequin is in contact with the first glass pane and the second glass pane, the sequin being applied to an inner side facing the space between the panes, one of the first glass pane and the second glass pane. This can advantageously be done without a coating on one of the glass panes, in particular without a coating on the glass pane to which the sequins are applied. However, neither of the two glass panes can have a coating. For the sake of better comprehensibility, in the exemplary embodiment in FIG. 6A and FIG.6B, each of the glass panes is provided with a coating; both or at least one of the coatings may be omitted. For this purpose, a sequin may be applied to one of the glass panes by means of an adhesive, glue, or similar application means and may be applied to the other of the two glass panes.

[0080] It is advantageously provided that a plurality of sequins are arranged on the first and / or second glass pane, achieving an appearance, wherein the sequins on the first glass pane as the outer pane have a first lateral spacing between them, and the sequins on the second glass pane as the inner pane have a second lateral spacing between them, wherein the second lateral spacing is smaller than the first lateral spacing.

[0081] It is advantageously provided that the sequins are formed and / or arranged at a distance from one another, forming a functional grid for designing a functional visual and / or protective function of the multi-pane glass visual element against external influences, wherein the external influence is selected from the group consisting of: bird protection, sun protection, heat protection.

[0082] Advantageously, to form a bird protection grid, the area coverage, defined as the ratio of the total area of ​​the plurality of sequins per unit area of ​​the multi-pane glass visible element, is less than 5%, in particular less than 3%, in particular less than 2%, in particular less than 1%, in particular less than 0.5%. A 3 / 50 mm grid, as the preferred solution for the vacuum insulating glass, results in a coverage of 0.28%.

[0083] A 3 / 50 mm grid (i.e., 3 mm diameter sequins on a square dot grid with 50 mm edges) or grids of a similar size are a preferred solution for vacuum insulating glass (VIG). Preferably, such a 3 / 50 mm grid results in a coverage of only 0.28% while still providing effective visibility, particularly for bird protection. This is particularly the case with bird protection grids; in other applications, the coverage could be significantly higher.

[0084] It is advantageous that the light-reflecting, in particular metallic or metal oxide reflective, surface of a sequin has a semi-transparent layer which

[0085] - has a reflection factor in the non-visible spectral range (non-VIS) that is significantly higher than the reflection factor in the visible spectral range (VIS), and / or - has a transmission factor in the non-visible spectral range (non-VIS) that is significantly lower than the transmission factor in the visible spectral range (VIS). This has the advantage that a reflection from a sequin, which is particularly noticeable to birds outside the visible spectral range (non-VIS), is amplified with particularly high effectiveness.

[0086] The invention also leads to a manufacturing method of claim 25 for the functional multi-pane insulating glass viewing element according to the concept of the invention, in particular one or more of the developments of the type explained above.

[0087] The manufacturing process for the multi-pane glass element is characterized by the following steps:

[0088] - providing a first and a second glass pane,

[0089] - Arranging a plurality of sequins on the first glass pane and / or second glass pane to achieve an appearance, wherein

[0090] - a sequin has a light-absorbing surface and a light-reflecting surface, and in the installed state of the multi-pane glass visible element, the light-absorbing surface is intended to face a building interior and the light-reflecting surface is intended to face a building exterior, and

[0091] - the sequins are arranged at a distance from one another in such a way that the multi-pane glass viewing element appears transparent when viewed from the side of the light-absorbing surface of the sequins and appears less transparent when viewed from the side of the light-reflecting surface of the sequins, whereby

[0092] - the plurality of sequins are applied to an inner side of one of the glass panes of the multi-pane glass element facing the space between the panes, in particular directly to the inner side of one of the glass panes facing the space between the panes or directly to a coating of the inner side of one of the glass panes facing the space between the panes,

[0093] - Using the first and / or second glass pane to form a multi-pane glass viewing element.

[0094] It is preferably provided that the arrangement of the plurality of sequins on the first glass pane and / or second glass pane is carried out to achieve an appearance before cutting and / or on a strip format, in particular in the float glass factory.

[0095] Embodiments of the invention will now be described below with reference to the drawings in comparison to the prior art, some of which is also shown. These are not necessarily intended to represent the embodiments to scale; rather, where useful for explanation, the drawings are schematic and / or slightly distorted. With regard to additions to the teachings that can be seen from the drawings, in particular directly, reference is made to the relevant prior art. It should be noted that many modifications and changes to the form and detail of an embodiment can be made without deviating from the general idea of ​​the invention. The features of the invention disclosed in the description, in the drawings and in the claims can be essential for the further development of the invention, both individually and in any combination.In addition, all combinations of at least two of the features disclosed in the description, the drawings and / or the claims fall within the scope of the invention.

[0096] The general concept of the invention is not limited to the exact form or detail of the preferred embodiment shown and described below, nor is it limited to a subject matter that would be limited compared to the subject matter claimed in the claims. In the case of specified dimensioning ranges, values ​​within the stated limits are also intended to be disclosed as limit values ​​and can be used and claimed as desired.

[0097] Further advantages, features and details of the invention will become apparent from the following description of the preferred embodiments and from the drawing, which shows:

[0098] FIG. 1A, FIG. 1B: a schematic representation of a comparative example of a structure of a multi-pane glass element or multi-pane insulating glass element with explanations of the basic positions of the glass surfaces Pos1, Pos2, Pos3, Pos4 and terminology - this in a first variant (FIG. 1A) involving only a single glass pane and in a second variant (FIG. 1B) involving a laminated glass pane; FIG. 2A, FIG. 2B, FIG. 2C, FIG. 2D: variants of a sequence of coating and sequins on an inner side of a glass pane facing the space between the panes, preferably as unhardened single-pane glass or non-tempered float glass pane (but not excluded as tempered single-pane safety glass (ESG)) of the multi-pane glass visual element - especially for a double-pane glass visual element - where the coating shown in FIG. 2A, FIG. 2B shown variants are particularly preferred,

[0099] FIG. 2E, FIG. 2F, FIG. 2G, FIG. 2H: Variants of a sequence of coating and sequins on an inner side of a glass pane facing the space between the panes, as laminated safety glass VSG - preferably made from non-tempered float glass panes or from partially tempered glass panes - of the multi-pane glass viewing element - especially for a double-pane glass viewing element - wherein the variants shown in FIG. 2E, FIG. 2F are particularly preferred,

[0100] FIG. 3: a schematic representation of a structure of a first embodiment of a functional multi-pane glass or insulating glass viewing element according to the first aspect of the invention in a first and second variant, in view (a) with two panes and in view (b) with three panes, namely according to the principle emerging from FIG. 2C;

[0101] FIG. 4: a schematic representation of a structure of a second embodiment of a functional multi-pane glass or insulating glass viewing element according to the first aspect of the invention in a first and second variant, in view (a) with two panes and in view (b) with three panes;

[0102] FIG. 5: a schematic representation of a particularly preferred structure of a third embodiment of a functional multi-pane glass or insulating glass viewing element according to the first aspect of the invention in a first variant in view (a) and a second variant in view (b) for a triple-pane glass viewing element, namely according to the principle explained for two panes in FIG. 2B and FIG. 2A; FIG. 6A, FIG. 6B: a schematic representation of a structure of a fourth embodiment of a functional multi-pane glass or insulating glass viewing element according to the first aspect of the invention, preferably with non-tempered single-pane glass (FIG. 6A) and with laminated safety glass (LSG), preferably consisting of non-partially tempered glass panes (FIG. 6B);

[0103] FIG. 7: Example of the structure of a sequin for application directly on a

[0104] glass pane;

[0105] FIG. 7A, FIG. 7B: the sequin of FIG. 7 prepared by way of example with an adhesive in a first variant (FIG. 7A) for application to a glass surface Pos2 of a glass pane (e.g. according to the first embodiment of FIG. 3 or FIG. 5 (view (b)) and in a second variant (FIG. 7B) for application to the glass surface Pos3 (e.g. according to the first embodiment of FIG. 4 or FIG. 5 (view (a));

[0106] FIG. 8: a flow chart for explaining a preferred embodiment of a sequence of a manufacturing method for a functional multi-pane glass or insulating glass element;

[0107] FIG. 9: a flow chart to explain a preferred embodiment of a manufacturing process in which a plurality of sequins are arranged on the glass pane before cutting, particularly in strip format, in the float glass factory, and energy-intensive processes are avoidable or optional.

[0108] 1A and FIG. 1B show --in views (a) and (b) of the respective upper row of FIG. 1A and FIG. 1B-- a multi-pane glass element 1A, 1B and in FIG. 1B a multi-pane glass element 2A, 2B in the form of a window and / or facade element for an installation in a facade or in the interior design of a building space. The multi-pane glass element 1B or 2B shown in the upper views (a) and (b) of FIG. 1A, FIG. 1B has a first glass pane G1 and a second glass pane G2 as well as a space SZR between the first and second glass panes G1, G2 and a space between the panes. The multi-pane glass element 1 can be designed as a double-pane glass element 1B, 2B, as shown in views (b). The designations are chosen accordingly. In views (b) double-pane glass elements with a naturally single space between the panes SZR are shown.

[0109] The space between the panes SZR in the triple-pane glass elements is initially referred to as SZR in its entirety in this case - even if the views (a) actually show a front space between the panes SZR-V, which is closest to the outside "outside" and a rear space between the panes SZR-H, which is closest to the inside "inside" of the interior.

[0110] Thus, in the exemplary embodiment shown in FIG. 1A and FIG. 1B, the multi-pane glass element 1A, 2A is not designed as a double-pane glass element, but as a triple-pane glass element 1A, 2A with a third glass pane G3, which, so to speak - following the sequence from the exterior space "outside" to the interior space "inside" - is arranged behind the second glass pane G2 as the third glass pane G3, leaving a rear interpane space SZR-H. In this respect, the interpane space SZR in the triple-pane glass element in this case consists of a first and second interpane space; which can be seen here as the front interpane space SZR-V (at the second glass pane G2 to the first pane G1 as the outer pane) and the rear interpane space SZR-H V (at the second glass pane G2 to the third glass pane G3 as the inner pane).

[0111] Also, as can be seen in FIG. 1 B in the upper illustrations (a) and (b), the first glass pane G1 (and if necessary also additionally or alternatively the middle and inner pane, i.e. the second glass pane G2 (not shown here)) can be designed as a laminated glass pane GV1.

[0112] This type of laminated glass pane GV1 in a standalone position (i.e. G1 .1, G1 .2 with film F or film composite F) - as a laminated safety glass VSG made of float glass panes - already represents an advantageous solution compared to a printed solution.

[0113] It turns out that printing on a glass pane with a thermal or solar control coating required for insulating glass requires additional, energy-intensive effort. An internal solution for a highly effective bird protection function cannot, or is difficult to, realize with a single printing process; at least not on the glass surface shown in Figure 1A in the upper illustrations (b).

[0114] Otherwise, the solution of laminated safety glass (LSG) requires at least one additional, equally tempered glass pane, which must then be laminated into a laminated safety glass in an equally energy-intensive process. In this case, the heat or solar protection layer is applied to the unprinted glass pane.

[0115] The laminated glass pane GV1 has—as shown in FIG. 1B—at least one laminated glass layer G1.1, which is intimately bonded to a film F; the film F can—as shown in all views in FIG. 1B—also be located between a first and second laminated glass layer G1.1, G1.2. Reference symbol F denotes a single film in this case. A simple laminated glass can also be bonded to only a single film F.

[0116] However, a laminated glass can also be formed with a film composite S, as shown in FIG. 1 B, illustrations (a) and (c). If, for example, sequins are to be placed between the two films, as explained in WO 2019 / 038288 A1, two films, i.e., a film composite, such as the composite structure film S referred to here, are used.

[0117] Here too, as previously explained, the multi-pane glass element 2A with the laminated glass pane GV1 can also be designed as a double-pane glass element 2B, which is shown in view (b) to the right, with the corresponding designation and correspondingly analogous description.

[0118] The elements of the list common to FIG. 1A and FIG. 1B (bottom right of the page) can in principle be features of the multi-pane glass element 1A, 1B, 2A, 2B, namely a glass pane G, a composite structure film S, a coating B, a simple film F and / or a spacer structure A, in particular frame AR.

[0119] The spacer structures A can be supplemented by a frame AR or the like or form one in order to keep the glass panes G1, G2, G3 at a distance and to tightly seal the space between the panes SZR. The multi-pane glass element 1A, 1B or 2A, 2B can thus be formed as an insulating glass element, wherein the space between the panes SZR is completely or partially provided with a vacuum, in particular for insulation. Alternatively, the multi-pane glass element 1A, 1B or 2A, 2B can be formed as a glass element, wherein the space between the panes is provided with insulating gas, in particular argon or krypton for insulation; in particular, butyl can also be used to hermetically seal the frame of the insulating glass.

[0120] The glass surfaces Pos1, Pos2, Pos3, Pos4 marked in view (b) of FIG. 1A are shown here in simplified form and are also used below to describe the relevant positions in the multi-pane glass element 1A, 1B or 2A, 2B at which further features are present. The reference symbols Pos1, Pos2, Pos3, Pos4, Pos5, Pos6 are suitable in the present case for defining the relevant glass surfaces on the first, second and third glass panes G1, G2, G3 - however, they only partially reflect the counting methods of a position specification customary in the art, which sequentially take into account all surfaces in the multi-pane glass element, counted from the outside to the inside; these are listed separately in the description as "positions" if necessary, particularly in the case of laminated panes.

[0121] Thus, it can be seen in views (a) of FIG. 1A that the first glass pane G1 is provided with a coating B on the glass surface Pos2 of the first glass pane G1 as the outer pane, i.e. directly on an inner side facing the space between the panes SZR (the front space between the panes, hereinafter also referred to as SZR-V); a coating B can - as in view (b) of FIG. 1A - also be present on a glass surface Pos3 of the second glass pane G2 as the inner pane. In view (a) of FIG. 1B, the coating B is also arranged directly on an inner side of the first glass pane G1 facing the space between the panes SZR (the front space between the panes, hereinafter also referred to as SZR-V); the first glass pane G1 is here made of laminated glass, i.e. as a laminated glass pane GV1.

[0122] The lower illustration (c) of FIGS. 1A and 1B shows how such multi-pane glass elements 1A, 1B or 2A, 2B can be supplemented to provide a viewing function; that is, by an additional installation or special design of the laminated glass pane GV1 in the sense of a glass composite viewing element GVS, which can be provided with a functional composite structure film S. A particularly preferred type of glass composite viewing element GVS is described in WO 2019 / 038288 A1 by the applicant, the content of which is hereby incorporated by reference into the disclosure content of this application.

[0123] In FIG. 1A below --in illustration (c)-- it is shown that a laminated safety glass (LSG) is arranged separately in front of the triple-pane glass element 1A --in FIG. 1A above in view (a)-- to establish an arrangement 1C of the multi-pane glass element 1A with the laminated glass visible element (GVS). This can be done, for example, in a facade.

[0124] In FIG. 1 B below --in illustration (c)--it is shown that a laminated safety glass (LSG) can be used to form a triple-pane glass element, as shown in view (a) of FIG. 1 B above, to establish an arrangement 2C of the multi-pane glass element 1A with the laminated glass visible element (GVS). This can be done, for example, in a facade.

[0125] However, this must be produced in its entirety, namely including the laminated glass pane (GVS), which is provided with an additional viewing function. It should also be noted that an additional laminated glass pane (GVS), as required in the example of arrangement 1C in FIG. 1A or arrangement 2C in FIG. 1B, requires at least two panes. The resulting additional energy and CO2 consumption during production and the resulting weight on a facade can be advantageously avoided. Using an example of a typical facade with an area of ​​10,000 m2, it can be estimated that a glass thickness reduction of just 2 mm can lead to a weight saving of 50 t or more.

[0126] Based on these possibilities, it is desirable to provide a multi-pane glass visual element in which the visual functionality is already integrated into a multi-pane glass element; i.e., preferably without having to resort to a laminated glass solution and thus also avoiding the corresponding energy consumption and CO2 during production and weight in application.

[0127] The multi-pane glass visual element should also advantageously offer reduced energy requirements during production; it has been shown that simply eliminating one composite glass visual element (GVS) -- separately as in FIG. 1A, view (c) or as part of the whole as in FIG. 1B, view (c) -- results in considerable energy savings. In particular, it should be possible to supplement the design of the multi-pane glass visual element with a further function, preferably by providing a bird protection functionality. The multi-pane glass visual element according to the concept of the invention should not only be sustainable, but also offer an optimized visual impression that offers optimized design freedom for facades or interior design while still being sustainable.

[0128] Bird-visible glass is becoming increasingly important, especially with solutions classified as highly effective. However, printed glass with a visual function or with a more extensive functional effect, particularly as a bird protection solution, always requires printing on an external position (designated as glass surface Pos1 in FIG. 1), i.e., on the outside of a glass pane G1 as the outer pane. This makes this solution more exposed to contamination; for example, the question of warranty arises.

[0129] Printing also requires a rather complex manufacturing process, which includes hardening the glass pane - this is energy-intensive and may result in a deterioration in the quality of the glass (keyword: "roller waves").

[0130] The solution of sequins in the laminated glass visible element according to WO 2019 / 038288 A1, which is laminated between glass and also protected within the laminate, sets new standards here with a coverage of less than 1% and the fact that it is not on the glass surface Pos1, which is specifically indicated in FIG. 1 A, view (b), and does not require tempered glass. However, it always requires the use of laminated glass; this will generally result in higher costs due to the additional laminated glass pane and the additional laminated film, as well as costs for the lamination process, which can also be particularly energy-intensive.

[0131] The embodiments of a so-called “on glass” solution with a functional effect presented here for the first time in accordance with the concept of the invention, shown in FIGS. 2 to 8, set new standards; a coverage of probably no more than 3% is required to enable a functional effect. The solution does not require full-surface bonding of window surfaces and is not exposed to the weather; the embodiments of FIGS. 2 to 8 presented according to the concept of the invention only provide for application to achieve a functional effect for a preferred glass surface Pos2, Pos3 and possibly higher (i.e. glass surface Pos4, Pos5); i.e. solutions of the invention are protected from mechanical stress on the glass surface; this is not the case with a glass surface Pos1.

[0132] The new solution according to the concept of the invention thus fundamentally requires neither an additional glass pane nor a laminating film or a lamination process between the glass. Furthermore, no complex, large-area films are required for application to the glass (and would therefore not have to be disposed of). Energy-intensive tempering of the glass according to the invention, which is necessary for glass printed on the glass surface (pos. 1), can also be eliminated.

[0133] The new solution based on the concept of the invention is also expected to be more cost-effective. It will also be more sustainable. Exemplary embodiments of FIGS. 2 to 8 will now be described, and these offer versatile applications with a correspondingly high demand and market share.

[0134] This type of multi-pane glass viewing element according to the concept of the invention is described in two embodiments of FIG. 2 to FIG. 6 with four main variants of FIG. 3, FIG. 4 and FIG. 5 and FIG. 6, wherein the modifications of FIG. 3 and FIG. 5 (advantageous those of view (b) but, in my opinion, also those of view (a)) have proven particularly successful.

[0135] First of all, reference is made to the variants of FIG. 2A, FIG. 2B and FIG. 2C and FIG. 2D: these show variants of a sequence of a coating and a sequin arrangement on an inner side of one of the glass panes G1, G2 facing the space between the panes SZR - preferably as unhardened single-pane glass, in particular simple float glass - of the multi-pane glass visible element; ie concerning glass surface Pos2 on the first glass pane G1 and glass surface Pos3 on the second glass pane G2. The variants show a sequence of a coating B and an arrangement of sequins P on an inner side of one of the glass panes of the multi-pane glass visible element facing the space between the panes.

[0136] According to the concept of the invention, in the embodiments shown in FIG. 2A, FIG. 2C, FIG. 2D, a plurality of sequins P are arranged on the first glass pane G1 to achieve an appearance; in a first preferred variant, the sequins are arranged directly on an inner side G-in of the first glass pane G1 facing the space between the panes SZR (the front space between the panes SZR-V), to achieve an appearance. According to the variant of FIG. 2C, the sequins P and the inner side G-in of the first glass pane G1 can be coated with a coating B. According to the variant of FIG. 2D, the entire inner side G-in of the first glass pane G1 can also be initially coated with a coating B, and the sequins P can be applied to the coating B.

[0137] According to the variant of FIG. 2B, it is possible for the plurality of sequins P to be applied, in particular directly, to an inner side G-in of the second glass pane G2 facing the space between the panes SZR.

[0138] In other words, the sequins P are applied to the first glass pane G1 on the glass surface Pos2 according to the embodiment of FIG. 2A. In other words, the sequins P are applied to the second glass pane G2 on the glass surface Pos3 according to the embodiment of FIG. 2B. In a modification, the embodiment of FIG. 2B can also be provided with an arrangement of sequins P and a coating B on the inner side G-in of the second glass pane G2, as shown in FIG. 2C and FIG. 2D using the preferred example of the first glass pane G1.

[0139] It is also possible (not shown) to apply the sequins P to both glass surfaces Pos2 and Pos3.

[0140] Overall, it has proven to be superior and advantageous that the first and / or second glass pane G1, G2 is applied with sequins P directly on its inner side G-in.

[0141] It is particularly advantageous if --as is the case in the embodiments of FIG. 2A and FIG. 2B-- only the first or the second glass pane G1, G2 has sequins P applied directly to its inner side G-in. In any case in these two last-mentioned and shown cases, the coating B is therefore on the glass pane opposite the one equipped with sequins P. If the sequins are therefore located --as in FIG. 2A-- on the inner side G-in of the outer glass pane G1 (on glass surface Pos2), the coating B is on the outer side G-in of the inner glass pane G2 (on glass surface Pos3) in the space between the panes SZR.The sequins P are thus located in an externally oriented viewing direction inwards in front of the glass coating B; this has the advantage that they are perceptible from the outside without being influenced by the coating B - the effect of the sequins is thus optimized and the lateral spacing of the sequins can be greater compared to the situation in FIG. 2B. According to the variant shown in FIG. 2B, the "reversed" version is visible, in which the coating B is on the inside of the outer glass pane G1, but the sequins P are on the outer side of the inner glass pane G2. The sequins P are thus located in an externally oriented viewing direction inwards behind the glass coating B. The sequins P are therefore perceptible from the outside despite being influenced by the coating B.

[0142] If the sequins --seen from the "outside"-- are located in front of the glass coating B (FIG. 2A), the spacing D between the sequins --especially with the functional effect of a bird protection solution-- is advantageously larger than the spacing d if the sequins P --seen from the "outside"-- are located behind the coating B (FIG. 2B).

[0143] If the sequins -- seen from the "outside" -- are located in front of the glass coating B (FIG. 2A and also FIG. 2E below), the spacing D between the sequins P is advantageously larger -- especially with the functional effect of a bird protection solution; this can preferably be achieved with a very open grid -- such as a 9 / 90mm grid; i.e. sequins with a diameter of 9 mm on the corners of a square dot grid with an edge length of 90 mm. This comparatively very open grid has a correspondingly very low coverage of less than 1%. The above example of a 9 / 90mm grid makes highly effective bird protection possible with a coverage of only 0.8% or less.

[0144] If the sequins --seen from the "outside"-- are behind the coating B (FIG. 2B and also see FIG. 2F below), the spacing d between the sequins P --especially with the functional effect of a bird protection solution-- is smaller, since the weakening effect of the coating B should be compensated by the smaller spacing d when the sequins P --seen from the "outside"-- are behind the coating B. It can nevertheless be seen that even with a relatively open grid --such as a 9 / 70mm grid (i.e. sequins with a diameter of 9 mm on the corners of a square dot grid with an edge length of 70 mm) and a correspondingly low coverage (in any case less than 2% - the above example of a 9 / 70 mm grid makes effective bird protection possible with a coverage of only 1.25%) -- highly effective bird protection is already achieved.

[0145] FIG. 2A and FIG. 2B each show the embodiment of a multi-pane glass viewing element, preferably a double-pane glass viewing element; FIG. 5, view (b), and FIG. 5, view (a), show corresponding analogous embodiments 20, 12Z and 10, 11Z of a triple-pane glass viewing element. FIG. 2C shows the embodiment of a multi-pane glass viewing element, preferably a double-pane glass viewing element; FIG. 3, view (a), shows a corresponding complete double-pane glass viewing element 20, 12V and FIG. 3, view (b), shows a corresponding analogous embodiment of a triple-pane glass viewing element 10, 11V; all of these each with the sequins on the first glass pane G1. The variants with the sequins on the second glass pane G2 are shown analogously in FIG. 4, view (a), and FIG. 4, view (b), shown.

[0146] Furthermore, reference is made to the variants of FIG. 2E, FIG. 2G, and FIG. 2H: these show variants of a sequence of a coating and a sequin arrangement on an inner side G-in the first glass pane G1 in the form of the simple laminated glass pane GV1, said inner side facing the space between the panes SZR; i.e. here specifically the inner side G-in the glass pane designated G1.2 of the laminated glass pane GV1 of the multi-pane glass visible element; i.e. relating to glass surface Pos2 on the first glass pane G1, namely there the glass pane G1.2 of the laminated glass pane GV1 and glass surface Pos3 on the second glass pane G2. FIG. 2F shows a variant with the arrangement of the sequins P on an inner side G-in the second glass pane G2, facing the space between the panes SZR. A counting method of a position indication that is common in the art and which takes all surfaces in the multi-pane glass element, counted from the outside to the inside, into account sequentially in FIG. 2E, FIG. 2F, FIG.2G and FIG. 2H, assign a "position 4" to the glass surface Pos2 and a "position 5" to the glass surface Pos3; the areas lying between the glass panes G1.1 and G1.2 of the laminated glass pane GV1 on the film F are counted as "position 2" and "position 3".

[0147] The variants show a sequence of a coating B and an arrangement of sequins P on the inner side of one of the glass panes of the multi-pane glass viewing element, facing the space between the panes. The laminated safety glass VSG is designed like the laminated glass pane GV1 in the exemplary embodiment shown in FIG. 1B, Figure (b), to which reference is made here. Otherwise, the designs of the multi-pane glass viewing elements are constructed analogously to the designs of the multi-pane glass viewing elements shown in FIG. 2A, FIG. 2B, FIG. 2C, and FIG. 2D, so reference is made here to the above description.

[0148] The above-mentioned and other variants of the embodiments of FIG. 2A to FIG. 2D are designed analogously with the embodiments of FIG. 3 to FIG. 5, each with glass panes as single-pane glass and described as three-pane glass viewing element 10 -- ie in variants designated 11V, 11H, 11Z, 12Z -- and two-pane glass viewing element 20 -- ie in variants designated 12V, 12H -- in FIG. 3 or FIG. 4 and FIG. 5. Analogously, the embodiments of FIG. 3 to FIG. 5 can be adapted with a laminated safety glass VSG as described and shown in the variants of FIG. 2E, FIG. 2F, FIG. 2G and FIG. 2H.

[0149] Accordingly, it should be understood that this type of variant of embodiments is not intended to be limiting, but can be expanded analogously, including for four, five, or six, etc. multi-pane glass viewing elements 10, 20—the explanation based on the exemplary double-pane glass viewing elements 20 and triple-pane glass viewing elements 10 is therefore to be understood as an example in this sense. Accordingly, for the sake of simplicity, the same reference numerals have been used here for identical or similar features or features with identical or similar functions.

[0150] Following the concept of the invention, in the embodiments shown in FIG. 3 and FIG. 5, a plurality of sequins P are arranged on the first and / or second glass pane G1, G2 to achieve an appearance, wherein the plurality of sequins P are applied, in particular directly, to an inner side G-in of the first and / or second glass pane G1, G2 facing the space between the panes SZR.

[0151] In other words, the sequins P are applied to the first glass pane G1 at the glass surface Pos2 according to the embodiment of FIG. 3. In other words, the sequins P are applied to the second glass pane G2 at the glass surface Pos3 according to the embodiment of FIG. 4.

[0152] Likewise, it is fundamentally possible (not shown) in the embodiments of FIG. 3 and FIG. 4 to apply the sequins P to both glass surfaces, ie to the glass surface Pos2 and to the glass surface Pos3.

[0153] It is also possible, in the embodiments of FIG. 3 and FIG. 4 - as shown in FIG. 2E to FIG. 2H - to preferably form the first glass pane G1 in the form of a simple laminated glass pane GV1; ie here specifically to apply the sequins on an inner side G-in the glass pane designated G1.2 of a laminated glass pane GV1 (comprising the glass panes designated G1.1 and G1.2 and a film F as shown in FIG. 1 B view (b)) of the multi-pane glass viewing element.

[0154] It should be understood that according to the embodiments of FIGS. 3 and 4—in the variant of view (a) and (b), respectively, the first glass pane G1 and the second glass pane G2—each bear a functional coating B on their inner side G-in facing the interpane space SZR (specifically, the front interpane space SZR-V). For the first glass pane G1, this corresponds to the glass surface Pos2, and for the second glass pane G2, this corresponds to the glass surface Pos3. In the present case, the coating B is designed for the purpose of improved solar and / or heat protection.

[0155] In the embodiments shown in FIG. 3 and FIG. 4—analogous to the variant embodiment of FIG. 2C—the sequins P are located between a first glass pane G1 and the coating B (FIG. 3) or, analogously (FIG. 4), between a second glass pane G2 and the coating B. In these embodiments, one of the glass panes G1, G2 is therefore free of sequins P and free of coating B.

[0156] In an alternative embodiment, the coating B can also be located directly on the glass pane G1 or G2 (not shown).

[0157] Having said that, reference is first made to FIG. 3. In the variant of an embodiment shown in FIG. 3, view (a), and in the variant of the embodiment shown in view (b) of FIG. 3, the plurality of sequins P on the first glass pane G1 are actually applied to the glass surface Pos2, namely directly on an inner side G-in of the first glass pane G1 facing the space between the panes SZR. In the installed state of the multi-pane glass viewing element 10, 11V or 20, 12V, the first glass pane G1 is provided as the outer pane and thus faces the exterior of the building "outside". The second glass pane G2, in this embodiment according to the variants in view (a) and view (b), is provided as the inner pane and thus faces the interior of the building "inside". The exterior of the building is referred to as "outside" in the present case, and the interior of the building is referred to as "inside".

[0158] The variant shown in view (b) is designed as a triple-pane glass viewing element—i.e., directly adjacent to the second glass pane G2 is another interpane space SZR and a third glass pane G3, held at a distance by the spacing structure not described in detail here. In the variant of the embodiment of FIG. 3 shown in view (a), the first glass pane G1 and the second glass pane G2 are the only glass panes of the multi-pane glass viewing element 20, 12V to form the multi-pane glass viewing element 20, 12V as a double-pane glass viewing element.

[0159] In the present embodiment according to the aforementioned variants in view (a) and view (b), the sequins P are applied only to the glass surface Pos2, i.e., directly on the inner side G-in of the first glass pane G1 facing the interpane space SZR. The other glass panes are free of sequins P.

[0160] Nevertheless, it should be understood that in a modification of this embodiment not shown here, the sequins P can also be applied to the other glass pane(s) -- in particular the second glass pane G2 -- in addition to the sequins P applied to the first glass pane G1.

[0161] This becomes even clearer from the further embodiments shown in FIGS. 4 et seq. It should be mentioned at this point that the following embodiments concerning the arrangement of the sequins P on one of the glass panes G can be combined with the variants of the arrangement of the sequins P on the first glass pane G1 shown in the embodiment shown in FIG. 3. In other words, the sequins P can be arranged not only on the glass surface Pos2, but also additionally or alternatively on the glass surface Pos3 of the embodiments of the multi-pane glass viewing element 10, 20 shown here.

[0162] Reference is now made to FIG. 4. Accordingly, FIG. 4 shows, in views (a) and (b), the embodiment in two variants of a previously explained triple-pane glass viewing element 10, 11H and a double-pane glass viewing element 20, 12H, respectively, in which the sequins P are applied directly to an inner side G-in of the second glass pane G2 facing the space between the panes SZR as the inner pane.

[0163] In other words, the essential difference between the first embodiment of the multi-pane glass viewing element 10, 11V or 20, 12V according to FIG. 3 and the second embodiment of the multi-pane glass viewing element 10, 11H or 20, 12H according to FIG. 4 is that the sequins P in the first embodiment of FIG. 3 are arranged on the inside G-in the first glass pane G1 as the outer pane (insofar as seen from the outside “at the front” according to the choice of the reference symbols 10, 11V, 20, 12V on the front glass pane G1 - i.e. on the glass surface Pos2); whereas in the second embodiment of FIG. 4 the sequins P are applied to the second glass pane G2 as an inner pane (double-pane glass viewing element) or as a middle pane (triple-pane glass viewing element) on its inner side G-in (i.e. on the glass surface Pos3) (in this respect “rear” according to the choice of the reference numerals 10, 11 H, 20, 12H on the rear glass pane G2).It is to be understood that --as previously explained-- the sequins P can be applied not only on the front glass pane G1 or the rear glass pane G2, but also on both glass panes, ie the first and the second glass pane G1, G2, namely the front glass pane, ie the first glass pane G1 as the outer pane as well as on the rear or middle inner pane, ie the second glass pane G2.

[0164] In the previously explained embodiments of a triple-pane glass viewing element 10 according to variants (b) of FIGS. 3 and 4, the third glass pane G3—in the spaced-apart interpane space SZR, specifically the rear interpane space SZR-H behind the second glass pane G2 in the triple-pane glass viewing elements 11V, 11H—is free of sequins P.

[0165] Nevertheless, in a further modification not shown here, the third glass pane G3 can also be provided with sequins. An embodiment not shown in this respect takes this possibility into account and can be combined with the previously explained embodiments; i.e., in a modification, the sequins P can also be arranged on an inner side G-in3 of the third glass pane G3 assigned to the rear space between the panes SZR-H. In principle, in a modification, the sequins P can also be arranged on an inner side G-in2 of the second glass pane G2 assigned to the rear space between the panes SZR-H.

[0166] It is to be understood that in the present case, according to the embodiments of FIGS. 3 and 4 in the variant of view (a), the first glass pane G1 and the second glass pane G2 each carry a functional coating B on their inner side G-in facing the space between the panes SZR, which in the present case is designed for the purpose of improved solar and / or heat protection.

[0167] The sequins P --if present-- are located in the embodiments shown in FIG. 3 and FIG. 4 --analogous to the variant of FIG. 2C-- between a first glass pane G1 and the coating B or analogously (not shown) between a second glass pane G2 and the coating B. If in these embodiments one of the glass panes G1, G2 is free of sequins P, the coating B is (or can be) located directly on the glass pane G1, G2.

[0168] It is also possible for the sequins P to be applied additionally or alternatively, in particular directly, to an inner side G-in of the third glass pane G3 facing the space between the panes SZR in a three-pane glass viewing element 10 of FIG. 3 or FIG. 4.

[0169] The gap Z in FIG. 3 and FIG. 4 is discussed in FIG. 5.

[0170] FIG. 5 shows a schematic representation of the structure of a third embodiment of a functional multi-pane glass or insulating glass viewing element according to the first aspect of the invention.

[0171] With regard to the embodiment illustrated in FIG. 5, this shows a third embodiment, namely in the modifications of views (a) and (b), a first three-pane glass viewing element 10, 11Z and a second three-pane glass viewing element 20, 12Z, respectively. Here, too, the first glass pane G1 forms the outer pane; the third glass pane G3 forms the inner pane facing the interior "inside." The second glass pane G2 is clearly located --as a middle pane, so to speak -- between the first and third glass panes G1, G3. To avoid repetition, reference is made in this regard to the explanations for FIG. 3, view (b), and FIG. 4, view (b).

[0172] In contrast to the embodiment shown in FIG. 3, view (b), and FIG. 4, view (b), in the present case the sequins P are not arranged together with a coating B, but separately from the coating B on the first or the second glass pane G1, G2. In view (a) of FIG. 5 the first glass pane G1 is free of sequins and has the coating B, whereas in view (b) of FIG. 5 the second glass pane G2 is free of sequins P and has the coating B. The glass panes G1, G2 accordingly only have either a coating B -- for example as a sun protection and / or heat protection coating -- or the sequins. The embodiment of views (a) and (b) of FIG. 5, which is designed as a three-pane glass viewing element, differs in the arrangement of the sequins P in combination with the coating.

[0173] It can basically be advantageous for the first and / or the second glass pane G1, G2 to have sequins P applied directly to its inner side G-in. Overall, it has proven superior and advantageous for either the first or the second glass pane G1, G2 to have sequins P applied directly to its inner side G-in - this can advantageously be implemented as in the embodiments of FIG. 2B and FIG. 5, view (a); the coating B is applied there to that side of the glass pane G1 (in the case of glass surface Pos2) which is opposite the side of the glass pane G2 which is provided with sequins P (in the case of glass surface Pos3). From this aspect, this can be provided with particular advantage in the variant in the embodiments of FIG. 2A and FIG.5 View (b) can be realized; in this variant, coating B is applied to the glass surface Pos3, i.e., on the side of the glass pane G2 opposite the side of the glass pane G1 equipped with sequins P (in the case of the glass surface Pos2). The effect of the sequins P can thus be projected outwardly, unhindered by the coating, and thus be perceived in an optimized manner.

[0174] If the sequins P are located on the inner side G-in the outer glass pane G1 (on the glass surface Pos2), the coating B is on the outer side G-in the inner glass pane G2 in the cavity; the sequins P (on the glass surface Pos2) are then, seen from the outside, in front of the glass coating (on the glass surface Pos3).

[0175] According to the variant shown in FIG. 2B and FIG. 5, view (a), the "reverse" version is visible, in which the coating B lies on the inside of the outer glass pane G1 (on the glass surface Pos2), but the sequins P are on the outside of the inner glass pane G2 (on the glass surface Pos3). The sequins P are thus behind the glass coating B. If the sequins --seen from the "outside"-- are in front of the glass coating B, the spacing D between the sequins --especially with the functional effect of a bird protection solution-- can nevertheless advantageously be made larger than the spacing d if the sequins --seen from the "outside"-- are behind the coating (D>d). Accordingly, a gap Z between the sequins P on the first glass pane G1 is larger than a gap Z between the sequins P on the second glass pane G2.

[0176] A coating B may also be present on the third glass pane G3 (not shown). If a coating B is present only on the inner side G-in of the first glass pane G1 (FIG. 5, view (a)), i.e., preferably on that very first glass pane G1 as the outer pane, then it need not be present on the inner side G-in of the second glass pane G2 as the inner pane; it can be omitted there in favor of the sequins P, which, moreover, are better applied and adhere directly to the inner side G-in of the second glass pane.

[0177] In a further variant (FIG. 5, view (b)), the coating B can also be present only on the inner side G of the second glass pane G2; this has a corresponding advantage and an even more advantageous functional effect of the sequins P, since these are arranged in front of the coating B "from the outside." In a modification, a coating B can also be omitted completely.

[0178] The arrangement of the sequins P is therefore carried out according to the variant shown in view (a) of FIG. 5 on a glass surface, designated here as Pos3, on the second glass pane G2. This means that in the present case the sequins P are applied --in accordance with a manner shown in FIG. 2B--on the inside facing the space between the panes SZR --as the front side G-in-- of the second glass pane G2, i.e., they are arranged on precisely that designated glass surface Pos3; the sequins P are arranged directly on the inside G-in of the second glass pane G2 facing the front space between the panes SZR-V, leaving lateral gaps Z, as mentioned above.

[0179] In the variant of an embodiment shown in view (b) of FIG. 5, the sequins P are arranged on an inner side G-in of the first glass pane G1 facing the front interpane space SZR-V, leaving somewhat larger gaps Z (D>d). In this case, too, the sequins P are applied without coating B directly to this rear inner side of the first glass pane G1, i.e., in the manner explained with reference to FIG. 2A.

[0180] The third glass pane G3 may—but need not, as shown in Fig. 5—also carry a coating B, although this modification is not shown in Fig. 5.

[0181] Also, in a variant not shown here, the second glass pane G2 can generally carry sequins P and / or a coating B on its rear side G-in, i.e., the inner side G-in facing the rear cavity SZR-H (i.e., on Pos. 4, for example, analogously to what is shown for glass surface Pos. 2 using the variants in FIG. 2A to FIG. 2D). This option is generally considered if the first glass pane G1 formed as the outer pane on glass surface Pos. 2 and the second glass pane G2 formed as the inner pane on glass surface Pos. 3 should not carry a coating B or sequins P.

[0182] In all of the previously illustrated embodiments of FIGS. 3 to 5, a spacer structure A is provided which keeps the panes G at a distance. In these embodiments illustrated in this way, the spacer structure A is formed as a peripheral frame AR, by means of which the first and second glass panes G1, G2 --or optionally the third glass pane G3 mostly in views (a)-- are framed and thus kept at a distance. A corresponding space between the panes SZR, SZR-V, SZR-H is referred to here as the entire space between the panes SZR, it being understood that in the case of a third glass pane G3, the space between the panes SZR has a front space between the panes SZR-V adjacent to the first and second glass panes G1, G2 and a rear space between the panes SZR-H adjacent to the second and third glass panes G2, G3.There is then, so to speak, a rather external space between the panes SZR-V between the outer pane (first glass pane G1) and the second glass pane G2 and a rather internal space between the panes SZR-H between the inner pane (second glass pane G2) and the third glass pane G3.

[0183] The conventional frame AR of glass panes G1, G2, and optionally G3 has proven itself, especially for forming a multi-pane insulating glass unit, in which the space between the panes (SZR) is free of air. In particular, the space between the panes (SZR) can be filled with an insulating gas, such as argon or krypton, to form an insulating glass unit, or it can simply be left free of air. For further insulation, the frame AR can be sealed hermetically with butyl.

[0184] In the event that the cavity between the panes (SZR) is free of air, it has proven particularly preferable to provide this cavity—i.e., if necessary, also an outer and inner cavity between the panes (SZRV, SZRH)—with a vacuum. Providing a vacuum means evacuating or providing for evacuation. Several options have proven successful here—for example, a cavity between the panes (SZR) can be vacuumed by the manufacturer or equipped with a valve, for example, over the first and / or second glass pane (G1, G2) and optionally the third glass pane (G3), in order to subsequently vacuum it.

[0185] In this aforementioned case, it has proven useful that a spacer structure A in the form of one or more spacer elements is arranged in the spacing space between the panes, ie in the pane viewing area.

[0186] The spacer structure A can be formed from mostly small spacer elements measuring approximately one millimeter or less. These may only be visible at a viewing distance of 1 m to 2 m. Individual or a plurality of support elements are generally referred to below as spacer elements AH. These spacer elements AH can be distributed in a grid across the space between the panes. According to a particularly preferred embodiment shown in FIG. 6, such a spacer element AH is in the form of or formed with a sequin P. The plurality of sequins P can therefore be used as a plurality of spacer elements AH and form the novel spacer structure A between a first and second glass pane G1, G2 in a space between the panes SZR, as shown in FIG. 6.

[0187] The space between the panes SZR can thus be safely vacuumed, while sequins P act as spacer elements AH to keep the first glass panes G1 and G2 at a distance; the first glass pane G1 formed as the outer pane and the second glass pane G2 formed as the inner pane cannot be compressed even by an increased vacuum in the space between the panes SZR, since the sequins P are designed as spacer elements.

[0188] FIG. 6A and FIG. 6B show, in a schematic representation, a structure of a fourth embodiment of a functional multi-pane glass or insulating glass viewing element according to the first aspect of the invention with single-pane glass in FIG. 6A and with laminated safety glass VSG in FIG. 6B.

[0189] For this purpose, the structure of an embodiment of a functional multi-pane glass or insulating glass element 10, 12W according to the first aspect of the invention is shown in a schematic representation and described below. The coating B shown there on the inside of the first and second glass panes G1, G2 can also advantageously be omitted from one or both of the first and second glass panes G1, G2.

[0190] In the embodiments shown in FIG. 6A and FIG. 6B, the sequins P are designed as optimized spacer elements P to improve their spacer effect and are flat for this purpose.

[0191] They could, however, also be curved; curved sequins can offer certain advantages in terms of their optical effect and spacer function. The sequins P are therefore possible - in an embodiment not shown here - as curved sequins Pw or - as shown here - in the present case flat, i.e. largely planar or at least flat. A particularly flat sequin P with a thickness of more than 100 pm (micrometers) would already be sufficient to fulfil the intended spacer function. In the case of a curved sequin Pw, a designable type of curvature for a sequin Pw would in principle be possible as required in order to exert a spacer element AH effect. The curvature can be formed in any desired way - for example as an S-shape or U-shape - and can form radially or circumferentially around the sequin P.

[0192] It is advantageous that with such a spherical or other curvature of a sequin Pw on its reflective side, the visibility of the sequin Pw towards the outside can also be optimized.

[0193] A multi-pane glass viewing element 10, 12W shown in FIG. 6A and FIG. 6B is in this respect a double-pane glass viewing element, namely a vacuum insulating glass viewing element, formed with a vacuum in the space between the panes SZR and thus improved insulating properties as a result of the vacuumized space between the panes SZR.

[0194] In addition, the double-pane glass viewing element 10, 12W is comparatively thinner than the double-pane glass viewing elements 10, 12H, 12, 12V.

[0195] Curved sequins Pw or - as in the present case - flat or largely flat sequins P have the advantage that their lateral extent is comparatively small; a grid of sequins P with diameters in the range 3-12 mm to form corresponding contacts W and distances Z in the space between the panes SZR of the order of magnitude d or D with a grid in the spacing range 50-120 mm will already be sufficient to be "tight" enough to fulfil the visibility functionality for the purpose of bird protection (i.e. to be recognised by a bird) and to be sufficiently "contact-reduced" to fulfil the insulation properties which are to be achieved between the panes held at a distance (the first and second pane G1, G2, optionally the third pane G3).

[0196] If the sequins Pw are provided with a curvature, this can be advantageously used to optimize their reflective properties towards the outside and, at the same time, to optimize their effect as a spacer element AH in order to maintain the distance even in the visible area of ​​the glass panes G1, G2 and to minimize heat-conducting effects due to the contacts W being reduced in size with the curvature; i.e., improved insulation with optimized bird protection properties. The functional multi-pane glass or insulating glass viewing element 10, 12W of FIG. 6A is provided with single-pane ESG glass to form the first and second glass panes G1, G2.

[0197] The functional multi-pane glass or insulating glass element 10, 12W of FIG. 6B is provided with laminated safety glass (LSG) to form the first glass pane G1 as a laminated glass pane GV1. In a variant not shown here, the second glass pane G1 could also be formed as a laminated glass pane, or advantageously as an alternative.

[0198] FIG. 7 shows the basic structure of sequins P according to the concept of the invention. A sequin P has a light-absorbing surface OA and a light-reflecting surface OR on a carrier or as part of the carrier; in particular, the carrier T can form the light-absorbing surface OA and be coated with a metallic or metal-oxide reflecting coating to form the light-reflecting surface OR. Preferably, a layer structure with one or more optically semi-transparent layers of metal oxides can be designed for the light-reflecting, in particular in a broader sense, metallic or metal-oxide reflecting, surface OR of the sequin.

[0199] It is particularly advantageous that the light-reflecting, in particular metallic or metal oxide reflective, surface OR of a sequin has a semi-transparent layer which

[0200] - has a reflectance Rnon-vis in the non-visible spectral range (non-VIS) that is significantly higher than a reflectance Rvis in the visible spectral range (VIS), and / or

[0201] - has a transmittance Tnon-vis in the non-visible spectral range (non-VIS) that is significantly lower than a transmittance Tvis in the visible spectral range (VIS).

[0202] This has the advantage that the reflection of a sequin, which is particularly easily perceptible to birds outside the visible spectral range (non-VIS), is enhanced with particularly high effectiveness (due to Rnon-vis). For example, a semi-transparent surface of a sequin—that is, the light-reflecting, particularly metallic or metal-oxide reflective, surface OR of the sequin—with approximately 80% transmission Tvis and 20% reflection Rvis in the visible range VIS can be designed with a structure of various optically semi-transparent layers, particularly metallically reflective layers.

[0203] Preferably, a layer structure with one or more optically semi-transparent layers of metal oxides can be designed for the light-reflecting, in particular in a broader sense a metallic or metal oxide reflective, surface OR of the sequin; it can be designed such that the layer structure has a reflectance Rnon-vis in the non-visible spectral range (non-VIS) that is significantly increased compared to a reflectance Rvis in the visible spectral range (VIS), and / or has a transmittance Tnon-vis in the non-visible spectral range (non-VIS) that is significantly reduced compared to a transmittance Tvis in the visible spectral range (VIS).

[0204] In other words, a layer structure with one or more optically semi-transparent layers, in particular made of different metal oxides (in a broader sense, a metallic or metal oxide reflective structure), can be designed such that, in a range not visible to the human eye (non-VIS), the ratio Rnon-vis / Tnon-vis of transmission Tnon-vis and reflection Rnon-vis is significantly changed, in particular increased, compared to a ratio Rvis / Tvis of transmission Tvis and reflection Rvis in a range visible to the human eye (VIS). The increased reflection in the non-visible spectral range (non-VIS) relative to the visible spectral range (VIS) can be expressed as:

[0205] Rnon-VIS / Tnon-VIS > RviS / TviS

[0206] It should be understood that the non-visible spectral range (non-VIS) can preferably comprise the UV range and / or the IR range - i.e. it can comprise an ultraviolet spectral range alone or in combination with an infrared spectral range. If necessary, an effect can also be achieved if the "edges" of the visible spectral range (VIS) in relation to the non-visible spectral range (non-VIS) are designed in this way. This significantly increases the reflection of the sequin in line with an overall effect perceptible to the bird's eye, and thus the effectiveness of the sequin is increased in terms of its intended visibility (for birds). If necessary - also advantageously - the overall perception of the sequin in its effect for the human eye is also reduced compared to the overall effect perceptible to the bird's eye.

[0207] In any case, by designing the layer structure mentioned with one or more optically semi-transparent layers for the light-reflecting, in particular metallically reflective, surface OR of a sequin, the perceptibility of the reflective layer of the sequin for the bird's eye on the one hand and the human eye on the other hand can be designed to be independent in principle.

[0208] The sequin, which is therefore primarily reflective, particularly in the non-visible range (non-VIS), is perceived by the birds as an obstacle - if not as an individual sequin, then at least as the arrangement of the sequins on the glass pane. It should then be advantageous for the human eye not to be a problem if the cover is significantly higher than stated above. The reason for this is that such a sequin is then "rather" invisible to the human eye in the above sense, but particularly visible to a bird. The film thickness of the optically semi-transparent layer for the light-reflecting, particularly metallically reflective, surface OR of a sequin could be at least 25 pm (micrometers).

[0209] The light-reflecting surface of the sequin can be designed as a metallic reflective surface OR, and can also be—additionally or alternatively—coated with aluminum, copper, or a similar non-ferrous metal. When the multi-pane glass element is installed, the light-absorbing surface OA should face the interior of the building, and the light-reflecting surface OR should face the exterior of the building.

[0210] FIG. 7A shows a sequin P1 properly prepared for application for a multi-pane glass visible element of FIG. 2, and FIG. 7B shows a sequin P2 properly prepared for application for a multi-pane glass visible element of FIG. 3.

[0211] In the case of the sequin P1 of FIG. 7A, an adhesive K is applied to the light-reflecting surface OR in order to be adhesively brought into contact with the inner side G-in of the first glass pane G1 facing a space between the panes SZR; thus, to form an adhesive layer between the inner side G-in of the first glass pane G1 and the light-reflecting surface OR of the sequin P1. In the case of the sequin P2 of FIG. 7B, an adhesive K is applied to the first light-absorbing surface OA in order to be adhesively brought into contact with the inner side G-in of the second glass pane G2 facing a space between the panes SZR; thus, to form an adhesive layer between the inner side G-in of the second glass pane G2 and the first light-absorbing surface OA of the sequin P2.

[0212] It is likely that the metallically reflective sequins are advantageously applied directly to the glass surface Pos3, namely by gluing. In this embodiment, it is noteworthy that the glass surface Pos2, which is coated with a coating B, is not applied, thus embodying the concept of the invention.

[0213] It is advantageous to cover the glass surface Pos2 with sequins P2. This ensures greater visibility for birds due to the sequins P positioned in front of the reflective coating, allowing for greater spacing between the individual sequins.

[0214] FIG. 8 shows a flowchart for a preferred embodiment of a manufacturing method for producing a multi-pane glass viewing element 10, 20 or similar multi-pane glass viewing elements, among others, as previously claimed, described, and / or shown within the scope of the concept of the invention. In particular, the manufacturing method is explained by way of example using a multi-pane glass viewing element as shown in one of the embodiments of FIGS. 2A to 2H, or FIG. 3, FIG. 4, or FIG. 5 or FIG. 6A, FIG. B.

[0215] According to this flowchart, the manufacturing method 500 comprises at least the following steps for a preferred embodiment:

[0216] - in step 501, a first and a second glass pane G1, G2 are provided;

[0217] - in step 502, a plurality of sequins P are arranged on one of the glass sheets G1, G2 to achieve an appearance E.

[0218] For example, for the embodiment of FIGS. 2A, 2E, it can be assumed that the sequins P are applied to the first glass pane G1 directly on its inner glass side G-in. For example, for the embodiment of FIGS. 2B, 2F, it can be assumed that the sequins P are applied to the second glass pane G2 directly on its inner glass side G-in. A sequin P has a light-absorbing surface OA and a light-reflecting surface OR. In the installed state of the multi-pane glass visible element, the light-absorbing surface OA faces a building interior (“inside”) and the light-reflecting surface OR faces a building exterior (“outside”).The sequins P are arranged at a distance from one another in such a way that the multi-pane glass viewing element appears transparent when viewed from the light-absorbing surface OA of the sequins P and appears less transparent when viewed from the light-reflecting surface OR of the sequins P.

[0219] For the functional effect of a bird protection element, it has proven advantageous that in step 502 the plurality of sequins are arranged at a distance from one another in such a way that they are recognizable or even deterrent for a bird.

[0220] This means that in order to form a bird protection grid, an area coverage is set as the ratio of the total area of ​​the plurality of sequins per unit area of ​​the multi-pane glass visible element, which is less than 5%, in particular less than 3%, in particular less than 2%, in particular less than 1%, in particular less than 0.5%.

[0221] It turns out that highly effective bird protection can be achieved even with a relatively open grid - such as a 9 / 70mm grid (i.e. sequins with a diameter of 9 mm on the corners of a square dot grid with an edge length of 70 mm) and a correspondingly low coverage (of less than 2% in any case - the above example of a 9 / 70mm grid makes effective bird protection possible with a coverage of just 1.25%). It turns out that highly effective bird protection can be achieved even with a very open grid - such as a 9 / 90mm grid (i.e. sequins with a diameter of 9 mm on the corners of a square dot grid with an edge length of 90 mm) and a correspondingly even lower coverage (of less than 1% in any case - the above example of a 9 / 90mm grid makes effective bird protection possible with a coverage of just 0.8% or less).

[0222] When arranging the plurality of sequins, in step 502 a sequin P is applied, in particular for example directly for the embodiment of FIGS. 2A, 2E, on an inner side G in the glass pane G1 facing the space between the panes. When arranging the plurality of sequins, in step 502 a sequin P can alternatively (or additionally), in particular for example directly for the embodiment of FIGS. 2B, 2F, on an inner side G in the glass pane G2 facing the space between the panes. Regarding the representation of exemplary embodiments for an appearance E of the functional multi-pane glass or insulating glass visible elements explained here, reference is made to WO 2019 / 038288 A1, the content of which is hereby incorporated by reference - in particular with reference to the representations of FIGS. 8 and FIGS. 9A, 9B, 9C, 9D shown there in WO 2019 / 038288 A1. 9D and FIG.10 of WO 2019 / 038288 A1 and the description associated with it in WO 2019 / 038288 A1 - is incorporated into the content of the present application.

[0223] FIG. 8 of WO 2019 / 038288 A1 shows an example of a uniform appearance E.

[0224] FIG. 9A, FIG. 9B, FIG. 9C, FIG. 9D of WO 2019 / 038288 A1 shows in this regard an example of a facade in which, in order to achieve an adapted appearance E, the sequins of the plurality of sequins have different size dimensions and / or are arranged irregularly.

[0225] FIG.10 of WO 2019 / 038288 A1 shows an example of a facade in this regard.

[0226] In step 503, the glass pane applied with sequins P is used—for example, for the embodiment of FIGS. 2A, 2E—as a first glass pane G1 or—for example, for the embodiment of FIGS. 2B, 2F—as a second glass pane G2, to form a multi-pane glass viewing element 10, 20 explained above.

[0227] The multi-pane glass viewing element 10, 20 can be designed as a two-pane glass viewing element, wherein the first glass pane G1 and the second glass pane G2 are the only glass panes of the multi-pane glass viewing element. The multi-pane glass viewing element 10, 20 can be designed—for example, according to one of the variants in views (b) of FIGS. 3 and 4—as a three-pane glass viewing element that, in addition to the first glass pane G1 and second glass pane G2, has a third glass pane G3, wherein the third glass pane G3 is provided as an inner pane, facing a building interior ("inside").

[0228] The plurality of sequins P is therefore applied in the preferred multi-pane glass viewing element 10, 20, in particular directly, to the inner side G-in of the first or second glass pane G1, G2 facing the interpane space SZR. - M -

[0229] Preferably, the aforementioned glass pane is used as the first glass pane G1, for example, for the embodiment shown in FIGS. 2A and 2E; optionally, alternatively, it is used as the second glass pane G2, for example, for the embodiment shown in FIGS. 2B and 2F.

[0230] The aforementioned glass pane applied with sequins P is preferably formed as a simple single-pane glass; ie, preferably as an untempered single-pane glass, in particular simple float glass. This is shown according to one of the embodiments in FIG. 2A to FIG. 2D or FIG. 3, FIG. 4 or FIG. 5 or FIG. 6A.

[0231] The aforementioned glass pane applied with sequins P can alternatively also be a laminated glass made of float glass panes, as shown in one of the embodiments in FIG. 2E to FIG. 2H or FIG. 6B. In a modification, the laminated glass can also be formed as a laminated safety glass (LSG).

[0232] Overall, the multi-pane glass viewing element 10, 20 can preferably be assembled as a vacuum insulating glass (VIG), wherein a spacer structure A is formed as a peripheral frame A, AR, AH for the first and second glass panes G1, G2 (optionally also the third glass pane G3), by means of which the first and second glass panes G1, G2 (optionally also the third glass pane G3) are spaced apart. For this purpose, the space between the panes SZR spacing the first and second glass panes, and optionally also the further space between the panes spacing the second glass pane and third glass pane, is free of air to form the multi-pane glass viewing element as a multi-pane insulating glass viewing element (VIG). The space between the panes SZR can also be filled with insulating gas, in particular argon or krypton, or be free of air, in particular provided with a vacuum.

[0233] The multi-pane glass visible element 10, 20 is then used in an installed state in a facade or in the interior design of a building space.

[0234] Fig. 9 shows, with regard to step 502, in which a plurality of sequins are arranged on the glass pane to achieve an appearance E, that this step 502 is preferably still implemented in the float glass factory.

[0235] In the float glass factory, float glass is produced in a regularly standardized strip size of 3210 mm wide and usually up to 6000 mm - but possibly more, especially up to 20 m. Glass coating and glass lamination in strip size format preferably also take place in the float glass factory as part of the production plant; this can apply to single-pane glass without a coating or single-pane glass with a coating, to laminated glass, possibly also laminated safety glass (LSG), without a coating, or to laminated glass, possibly also laminated safety glass (LSG), with a coating - always preferably in strip size format of 6000 mm x 3210 mm; this results in maximum utilization of the float glass plant, since the float glass is still processed as a whole.

[0236] The concept of the invention has the advantage that the application of the sequins P according to step 502 can also be carried out in the float glass factory. This also allows, according to the concept of the invention, as many steps as possible to be carried out in the float glass factory—i.e., using large formats. The exemplary embodiments in FIGS. 2A, 2B, 2C, and 2D show multi-pane glass elements with only non-tempered float glass panes. This means that in the float glass factory, the simple single-pane glass / flat glass used is fitted with sequins, and only then is the glass cut to size—preferably also in the factory.

[0237] Toughened safety glass, on the other hand, requires the glass pane to be fitted with sequins in the glass factory; thus, in a smaller format than the standard format in the float glass factory.

[0238] The concept of the invention comprises, in a preferred development, that

[0239] - at least the first glass pane G1 and the second glass pane G2, in particular optionally a third glass pane G3, is formed as an untempered single-pane glass, in particular simple float glass, or

[0240] - at least the first glass pane G1 is formed as laminated glass with unhardened single-pane glass, in particular simple float glass, and the second glass pane G2, in particular optionally a third glass pane G3, is formed as an unhardened single-pane glass, in particular simple float glass.

[0241] The product according to the concept of the invention consists of untempered single-pane glass, in particular simple float glass.

[0242] This also applies to laminated glass, as it is formed from untempered single-pane glass, particularly simple float glass; for example, as shown in the embodiments of FIGS. 2E, 2F, 2G, and 2H. Laminated glass made from non-tempered glass can be fitted with sequins in the float glass factory; the glass is then simply cut to size in the factory.

[0243] Laminated safety glass made from partially tempered glass panes, on the other hand, requires cutting, tempering, lamination and application of the sequins exclusively in the glassworks.

[0244] According to a preferred embodiment of the inventive concept, the application of the sequins P can therefore preferably be carried out on the simple float glass in the float glass factory. Further steps such as coating and lamination to form laminated glass can also be carried out in the float glass factory.

[0245] A simple float glass pane does not meet the safety requirements required of toughened safety glass (ESG); however, it is nevertheless of primary interest.

[0246] Single-pane safety glass (ESG) always comprises a tempered or toughened glass pane; the sequins (P) can therefore only be applied after the tempering process due to the high temperatures involved. Laminated safety glass can be made from either heat-strengthened (TVG) or float glass panes. Both variants are equivalent to laminated safety glass (VSG).

[0247] According to the concept of the invention, the multi-pane glass element is preferably manufactured from float glass panes, i.e., as individual panes (not toughened safety glass) or from laminated float glass panes. This allows the use of strip-sized glass coated with sequins P in the float glass factory.

[0248] Only after step 502 - in which a plurality of sequins P are applied to the glass pane to achieve an appearance E - can a cutting to a smaller size be carried out in step 502.1 (symbolically shown) and a more detailed glass processing (such as edge processing, hole drilling, or the like) can be carried out in step 502.2.

[0249] In addition, a step 502.3 with particularly energy-intensive processes not further shown, such as tempering, fixed-size coating and / or glass lamination at the fixed size, is optional; ie, only required where necessary.

[0250] In principle, after step 502.2 - without energy-intensive processes of the

[0251] Step 502.3 - in the above-explained step 503, the glass pane can be used as a first glass pane G1 or as a second glass pane G2 to form a multi-pane glass viewing element 10, 20 explained above.

[0252] In the manufacturing method according to the concept of the invention, the application in step 502 can therefore be particularly advantageously carried out in the float glass factory in strip format before cutting to a smaller size—i.e., in particular, before transport to the glass processors and cutting there to a smaller size in step 502.1. If necessary, coating can also be carried out in the float glass factory in strip format. This allows for optimal utilization of the capacity of the float glass systems during production of the multi-pane glass visible element 10, 20.

[0253] The higher the number of processing steps on the individual, project-specific glass pane (lamination, fixed-size coating) compared to strip size processing (>=6000x3210mm) in the float glass factory, the higher the energy requirement per m2 of glass surface.

[0254] The concept of the invention, on the other hand, enables maximum processing in the float glass factory and thus reduces processing at the glass processor.

[0255] In particular, energy-intensive processes for the glass processor, such as tempering or similar additional process steps that are necessary for screen printing applications on glass, are eliminated; energy-intensive processes in step 502.3 may be eliminated.

[0256] If, for example, toughened safety glass (ESG) or partially toughened glass (TVG) is to be used as part of laminated safety glass (VSG), the application of the sequins can only take place in the glass factory and after the energy-intensive tempering process and, in the case of laminated glass panes, the lamination process, which is less energy-optimized than the lamination process in the float glass factory.

[0257] Pos1, Pos2, Pos3, Pos4, Pos5, Pos6 glass surfaces

[0258] 1A, 1 B, 2A, 2B multi-pane glass element

[0259] 1C, 2C arrangement

[0260] 10, 11V, 11H, 11z, 12Z triple-pane glass viewing element

[0261] 20, 12H, 12V double-glazed viewing element

[0262] G1, G2, G3 first, second, third glass pane

[0263] GV1 laminated glass pane

[0264] GVS glass composite visible element,

[0265] VSG laminated safety glass

[0266] VI G vacuum insulating glass

[0267] S, F Composite structural film, film or film composite

[0268] SZR space between panes

[0269] SZR-V, SZR-H first or front space between the panes, further or rear space between the panes

[0270] B coating

[0271] P Sequin

[0272] P1 , P2 sequins with glue

[0273] K Glue

[0274] G-in the space between the panes SZR or front space between the panes SZR-V facing inside / inner side of the first or second glass pane G1, G2

[0275] G-in2, G-in3 inner side of the second glass pane G2 or third glass pane G3 facing the rear space between the panes SZR-H

[0276] A, AH, AR spacer structure, spacer elements, frame

[0277] OR, OA light-reflecting surface, light-absorbing surface

Claims

1. Multi-pane glass viewing element (10, 20), in particular multi-pane insulating glass viewing element (VIG), in particular for a window and / or facade element for an installed state in a facade or in an interior design of a building space, comprising: - at least one first glass pane (G1) and one second glass pane (G2) and at least one space between the first glass pane and the second glass pane and separating them, wherein at least the first glass pane and the second glass pane are kept at a distance with the space between the panes by a spacer structure (A), characterized in that - a plurality of sequins (P) are arranged in the multi-pane glass element to achieve an appearance (E), wherein - a sequin (P) has a light-absorbing surface (OA) and a light-reflecting surface (OR), and in the installed state of the multi-pane glass visible element, the light-absorbing surface is intended to face a building interior (inside) and the light-reflecting surface is intended to face a building exterior (outside), and - the sequins (P) are arranged at a distance from one another in such a way that the multi-pane glass viewing element appears transparent when viewed on the side of the light-absorbing surface of the sequins and appears less transparent when viewed on the side of the light-reflecting surface of the sequins, wherein - the plurality of sequins (P) are applied to an inner side (G-in) of one of the glass panes of the multi-pane glass visible element facing the space between the panes (SZR).

2. Multi-pane glass viewing element according to claim 1, wherein the glass panes (G1, G2, G3) of the multi-pane glass viewing element (10, 20) consist of unhardened single-pane glass, in particular simple float glass, preferably - at least the first glass pane (G1) and the second glass pane (G2), in particular optionally a third glass pane (G3), is formed as an untempered single-pane glass, in particular simple float glass, or - at least the first glass pane (G1) is formed as laminated glass with unhardened single-pane glass, in particular simple float glass, or laminated safety glass, and the second glass pane (G2), in particular optionally a third glass pane (G3), is formed as an unhardened single-pane glass, in particular simple float glass.

3. Multi-pane glass viewing element according to claim 1 or 2, wherein - the plurality of sequins (P) is applied directly to the inner side (G-in) of one of the glass panes facing the space between the panes (SZR), or - the plurality of sequins (P) is applied directly to a coating (B) of the inner side of one of the glass panes facing the cavity (SZR).

4. Multi-pane glass viewing element according to one of the preceding claims, wherein the plurality of sequins (P) are applied exclusively on the inside of the first and / or second glass pane (G1, G2) facing the space between the panes (SZR), in particular are applied exclusively on the inside of the first and / or second glass pane of a double-pane glass viewing element (20, 12H, 12V) or a triple-pane glass viewing element (10, 11V, 11H, 11z, 12Z) facing the space between the panes.

5. Multi-pane glass viewing element according to one of claims 1 to 4, wherein - in the installed state of the multi-pane glass viewing element, the first glass pane (G1) is provided as an outer pane, facing an exterior space of the building (outside) and the second glass pane (G2) is provided as an inner pane, facing an interior space of the building (inside), wherein for the formation of the multi-pane glass viewing element as a two-pane glass viewing element (20, 12H, 12V) the first glass pane (G1) and the second glass pane (G2) are the only glass panes of the multi-pane glass viewing element.

6. Multi-pane glass viewing element according to one of claims 1 to 4, for forming the multi-pane glass viewing element as a three-pane glass viewing element (10, 11V, 11H, 11z, 12Z), the multi-pane glass viewing element, - in addition to the first glass pane (G1) and second glass pane (G2), a third glass pane (G3), wherein the first glass pane and the second glass pane and the third glass pane are the only glass panes of the multi-pane glass viewing element, and - a further space between the panes (SZR-H) located between the second glass pane and the third glass pane and spacing them apart, wherein the second glass pane and the third glass pane are kept at a distance by the further space between the panes with the or a further spacing structure (A), wherein - the first glass pane is provided as an outer pane, facing an exterior space of the building (outside), and the second glass pane (G2) is provided between the first and third glass panes (G1, G2), and the third glass pane is provided as an inner pane, facing an interior space of the building (inside).

7. Multi-pane glass viewing element according to one of claims 1 to 6, wherein the spacing structure for the first and second glass panes, optionally also the third glass pane, is formed as a peripheral frame (AR) by means of which the first and second glass panes, optionally also the third glass pane, are held at a distance.

8. Multi-pane glass viewing element according to one of the preceding claims, wherein - the space between the panes separating the first and second glass panes, and optionally also the further space between the panes separating the second glass pane and third glass pane, is free of air, namely for the formation of the multi-pane glass visual element as a multi-pane insulating glass visual element.

9. Multi-pane glass viewing element according to one of the preceding claims, characterized in that - for the multi-pane glass visual element in the form of a multi-pane insulating glass visual element (VIG), the space between the panes, optionally also the further space between the panes, is so free of air that it is filled with insulating gas, in particular with argon or krypton, to insulate the multi-pane glass visual element and form it as an insulating glass visual element (VIG), or - is so free of air that it is provided with a vacuum to insulate the multi-pane glass visible element and to form a multi-pane vacuum insulating glass visible element (VIG).

10. Multi-pane glass viewing element according to one of the preceding claims, characterized in that the first and the second glass pane, optionally also the third glass pane, are kept at a distance in the pane viewing area by the spacer structure comprising one or more spacer elements (AH) in the spacing space between the panes.

11. Multi-pane glass viewing element according to one of the preceding claims, wherein a spacer structure is formed by means of one or more, in particular all, of the plurality of sequins (P) on the first and / or second glass pane (G1, G2), wherein at least one or more of the sequins, preferably all sequins, are designed as a spacer element (AH).

12. Multi-pane glass viewing element according to claim one of the preceding claims, wherein a sequin for forming a spacer element (AH) is flat and the sequin has a height which extends over the space between the panes.

13. Multi-pane glass viewing element according to one of the preceding claims, characterized in that - a sequin is applied, in particular directly, to an inner side of the first and / or second glass pane facing the space between the panes, optionally applied to an inner side of the second and / or third glass pane, in particular directly, facing the further space between the panes, by means of an adhesive, bonding agent or similar application means.

14. Multi-pane glass viewing element according to one of the preceding claims, in which the light-reflecting surface (OR) of a sequin is metallically or metal oxide-reflecting, and / or in which the light-absorbing surface of a sequin is black.

15. Multi-pane glass viewing element according to one of the preceding claims, in which a sequin (P, Pw) is flat or curved and / or has a layer structure comprising a decorative film and a light-absorbing layer, in particular in which the decorative film comprises a metallically or metal-oxide reflective polymer film and / or in which the light-absorbing layer is a light-absorbing plastic film or a light-absorbing coating of the decorative film.

16. Multi-pane glass viewing element according to one of the preceding claims, characterized in that a sequin (P), in particular directly on a glass surface or directly on a coating (B) of the glass surface, is applied to an inner side of the first glass pane facing the space between the panes, which is provided as an outer pane to face an exterior space of the building, wherein - the sequin (P) is applied with its second light-reflecting surface, in particular directly on a glass surface or directly on a coating (B) of the glass surface, on the inner side of the first glass pane facing the space between the panes, in particular based on the fact that the light-reflecting surface of the sequin carries an adhesive.

17. Multi-pane glass viewing element according to one of the preceding claims, characterized in that a sequin (P) is applied, in particular directly, to an inner side of the second glass pane (G2) facing the space between the panes (SZR), which is provided as an inner pane to face a building interior, wherein - the sequin (P) with its first light-absorbing surface (OA), in particular directly, on the inner side facing the cavity (SZR) the second glass pane (G2), in particular based on the fact that the light-absorbing surface (OA) of the sequin carries an adhesive.

18. Multi-pane glass viewing element according to claim 16 or 17, characterized in that the inner side facing the space between the panes of that glass pane opposite the glass pane equipped with sequins has a glass coating (B).

19. Multi-pane glass viewing element according to one of the preceding claims, characterized in that - a sequin (P) is applied directly to an inner side (G-in) of the first or second glass pane facing the space between the panes, without a coating (B) lying between the glass pane and the sequin, in particular optionally a coating is arranged on the sequin, or - a sequin (P) is applied to an inner side (G-in) of the first or second glass pane facing the space between the panes, on a coating (B) lying between the glass pane (G1, G2) and the sequin, or - a sequin (P, Pw) is applied to an inner side of one of the first glass pane and the second glass pane (G1, G2) facing the space between the panes (SZR), in particular with or without a coating (B) lying between the glass pane and the sequin, wherein the sequin (P) is in contact with the first glass pane (G1) and the second glass pane (G2).

20. Multi-pane glass viewing element according to one of the preceding claims, characterized in that a plurality of sequins are arranged on the first and / or second glass pane, optionally a third glass pane, to achieve an appearance (E), wherein - the sequins (P) on the first glass pane (G1) as the outer pane have a first lateral spacing (D) between them, and / or - the sequins (P) on the second glass pane (G2) as the inner pane have a second lateral spacing (d) between them, wherein - the second lateral spacing (d) on the second glass pane (G2) is or would be smaller than the first lateral spacing (D).

21. Multi-pane glass viewing element according to one of the preceding claims, characterized in that the sequins are formed and / or arranged at a distance from one another to form a functional grid for designing a functional viewing and / or protective function of the multi-pane glass viewing element against external influences, wherein the external influence is selected from the group consisting of: bird protection, sun protection, heat protection.

22. Multi-pane glass viewing element according to one of the preceding claims, characterized in that, in order to form a bird protection grid, a surface coverage as a ratio of the total area of ​​the plurality of sequins per unit area of ​​the multi-pane glass viewing element is less than 5%, in particular less than 3%, in particular less than 2%, in particular less than 1%, in particular less than 0.5%.

23. Multi-pane glass viewing element according to one of the preceding claims, characterized in that the light-reflecting, in particular metallic or metal oxide reflective, surface of a sequin has a semi-transparent layer which - has a reflectance in the non-visible spectral range (non-VIS) that is significantly higher than a reflectance in the visible spectral range (VIS) and / or - has a transmittance in the non-visible spectral range (non-VIS) that is significantly lower than a transmittance in the visible spectral range (VIS).

24. Window and / or facade element for an installation state in a facade or in an interior design of a building space, comprising a multi-pane glass visible element according to one of the preceding claims.

25. Manufacturing method for multi-pane glass viewing element according to one of claims 1 to 23, characterized by the steps: - providing (501) a first and a second glass pane, - arranging (502) a plurality of sequins on the first glass pane and / or second glass pane to achieve an appearance (E), wherein - a sequin has a light-absorbing surface and a light-reflecting surface, and in the installed state of the multi-pane glass visible element, the light-absorbing surface is intended to face a building interior and the light-reflecting surface is intended to face a building exterior, and - the sequins are arranged at a distance from one another in such a way that the multi-pane glass viewing element appears transparent when viewed from the side of the light-absorbing surface of the sequins and appears less transparent when viewed from the side of the light-reflecting surface of the sequins, whereby - the plurality of sequins are applied to an inner side of one of the glass panes of the multi-pane glass element facing the space between the panes, in particular directly to the inner side of one of the glass panes facing the space between the panes or directly to a coating of the inner side of one of the glass panes facing the space between the panes, - Using (503) the first and / or the second glass pane to form a multi-pane glass viewing element (10, 20) according to one of claims 1 to 23.

26. Manufacturing method according to claim 25, characterized in that the arrangement (502) of a plurality of sequins on the first glass pane and / or second glass pane to achieve an appearance (E) takes place in front of a blank (502.1) and / or on a strip format, in particular in the float glass factory.

27. Use of a multi-pane glass viewing element according to one of the preceding claims 1 to 23 for the functional effect of a bird protection element, characterized in that the plurality of sequins are arranged at a distance from one another in such a way that they are recognizable as a deterrent for a bird, wherein to form a bird protection grid a surface covering as The ratio of the total area of ​​the plurality of sequins per unit area of ​​the multi-pane glass visible element is less than 5%, in particular less than 3%, in particular less than 2%, in particular less than 1%, in particular less than 0.5%.

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