• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    COATED GLASS HAVING AREAS WHERE THE COATING IS PARTIALLY REMOVED Glazing coated with a communication window (7), comprising at least: a. a base glazing (1) b. a metal-containing coating (2), c. a first grid area (3.1) and a second grid area (3.2) within the metal-containing coating (2), d. wherein the first grid area (3.1) and the second grid area (3.2) have uncoated regions in the form of grid lines (4.1, 4.2) arranged in a grid-like manner, e.g. the grid lines (4.1) of the first grid area (3.1) transit at least one long side within an open comb structure (6) with teeth (5), and the grid lines (4,2) of the second grid area (3.2) transit at least one long side within a closed comb structure (8), where f. the first grid area (3.1) is connected, via at least one tooth (5) of the open comb structure (6), to the closed comb structure (8) of the second grid area (3.2).
    公开号:BR112015003863B1
    申请号:R112015003863-8
    申请日:2013-08-20
    公开日:2021-07-06
    发明作者:Dirk Wohlfeil；Ilkay Arslan；Ingo Von Der Weiden；Michael Behmke；Stefan Droste
    申请人:Saint-Gobain Glass France；
    IPC主号:
    专利说明:

    [0001] The invention relates to a glass pane coated with windows in the form of partially uncoated areas for permeability of high-frequency electromagnetic radiation, as well as a method for its production and use.
    [0002] Glazing with metal or layers containing metal are very widespread both in the field of architectural glazing as in the field of glazing of motor vehicles. These metal-based coatings influence the transmittance, reflectance, and absorption behavior of electromagnetic radiation. Electrically conductive coatings can be used for window heating.
    [0003] Coatings containing metal with, for example, silver, can significantly reduce the transmittance of infrared thermal radiation in the space of a motor vehicle, or a building located behind the window. In particular, in the case of motor vehicles, this property can also be combined with an electrical connection with a silver-containing coating heating function. The strength of the specific silver blade makes it possible to heat a glass with very thin layers containing silver, while the coating remains adequately transparent to visible light. Consequently, due to the mentioned advantages, glazing with silver-containing coatings is being found in more and more motor vehicles.
    [0004] However, glazing with metal-containing coatings also entail disadvantages; for example, radio frequency radiation is absorbed by many metal-containing coatings. The operation of many sensors, navigation, telecommunication, or radio devices is significantly impaired in this way. To solve these problems, an at least partial decoating area of the metal-containing coating is needed. In the example of electromagnetic radiation in the radio frequency band, such as FM, AM, UHF, VHF, DAB, mobile telephony in the GSM 900, GSM 1800, AND UMTS bands, satellite assisted navigation (GPS), or microwave radiation, a decoating grid-like or grid-like is required for this. The grid meshes must have a distance between the lines that is significantly smaller than the wavelength of the desired electromagnetic radiation in question. For this purpose, metal-containing coatings are, for example, removed in the form of lines using a suitable laser. Since only small amounts of the metal-containing coating have to be removed, the infrared radiation absorption effect is largely retained.
    [0005] EP 0 678 483 B1 describes a glass substrate with a plurality of thin layers. These layers include an adhesive layer based on titanium oxide, tin oxide, or tantalum oxide, a cover layer, and a functional layer from the stainless steel group. The thickness of the functional layer is preferably from 15 nm to 45 nm.
    [0006] US 2002/0192473 A1 describes a transparent substrate with a multilayer coating that can act on solar radiation. The coating includes at least one functional metallic layer made of niobium, tantalum, or zirconium, and a cover layer made of aluminum nitride, aluminum oxynitride, or silicon nitride.
    [0007] US 2011/0146172 A1 describes a transparent substrate with a thin multilayer coating. The multilayer coating includes at least two functional absorbing layers and two transparent layers made of a dielectric material. The functional layers preferably contain a group metal composed of niobium, tantalum and zirconium. In a preferred embodiment, the functional layers are at least partially nitrified.
    [0008] US 2007/0082219 A1 describes a heatable glass substrate with a multilayer coating containing silver. The coating enables both temperature control in the motor vehicle and the window heating function. The coating and, with it, the glazing are impermeable to electromagnetic radiation.
    [0009] DE 198 17 712 C1 describes a glass pane with a coating and a radiating window. The window is implemented in a limited contiguous area of the glazing, where there is a coating free area to total area ratio of at least 25%, with the area distribution of the coating free and coated areas.
    [0010] WO 2004/051869 A2 describes a metal coated glazing having a window transparent to radio frequency signals. The window includes various structures permeable to the radio frequency signal, for example vertical or horizontal beams or zigzag structures.
    [0011] US 6,730,389 B2 describes a metal-coated glazing having multiple windows transparent to RF radiation connected together.
    [0012] WO 2012/066324 A1 describes a method for producing a glazing coated with a window transparent to electromagnetic radiation in the radio frequency range. The window is produced by two-dimensional curve patterning using a laser.
    [0013] With most laser patterning methods, the size of the possible processing window is limited. The laser can only process and pattern regions up to a maximum size in one operation. When the communication window is larger than the laser scanning window, multiple separate process steps are required. If the pattern produced is supplemented by another pattern in a second process step, deviations often occur in the overlapping region, such as double lines, which interfere, as inhomogeneities, in the visual aspect, with the overall impression of the patterned area. Even with the help of relatively large two-dimensional blotters, these inaccuracies in the region of overlapping patterns cannot be resolved. Furthermore, the accuracy and reproducibility of patterns produced within the coating often suffer from the increasing size of the process window, eg a communication window.
    [0014] The purpose of the present invention is to provide a metal-coated glazing, which consists of a plurality of overlapping communication windows and has only slight or no inhomogeneities in the visual aspect of the transition region.
    [0015] The object of the present invention is carried out according to independent claim 1. Preferred embodiments arise from the sub-claims.
    [0016] A method according to the invention for producing a coated glazing with a communication window, as well as its use, arises from other independent claims.
    [0017] The glazing coated with a communicating window, according to the invention, comprises at least a base glazing and a coating containing metal. The glazing preferably contains flat glass, float glass, quartz glass, borosilicate glass, soda lime glass, and/or mixtures thereof. Alternatively, the glazing can also include polymers such as polycarbonate or polymethyl methacrylate (Plexiglas). The metal-containing coating preferably contains niobium, tantalum, molybdenum, zirconium, silver gold, aluminum, nickel, chromium, copper and/or their mixtures or alloys, particularly preferably silver. In addition to the actual coating, other dielectric layers are preferably also present. The dielectric layer preferably includes SiO2, SnO2, Bi2O3, ZnO, TiO2, Ta2O5, AlN, Si3N4, and/or mixtures thereof. The order of deposition of a dielectric layer and a functional layer on composite glazing is variable; preferably, a plurality of functional layers and dielectric layers are deposited on the composite glazing. Optionally, other layers, for example cover layers, can be present. The metal-containing coating preferably has a blade resistance of 0.5 ohm/square to 200 ohm/square and particularly preferably of 0.7 ohm/square to 30 ohm/square. The metal-containing coating can be disposed within a composite glass pane. The metal-containing coating may alternatively be disposed on the outside of a single glass pane or a composite pane.
    [0018] At least a first grid area and a second grid area are situated within the metal-containing coating and together form a communication window. In the context of the invention, the term "grid area" includes an area within the coating which has, for example, linear laser decoating. The linear uncoating forms a tile pattern with meshed mesh and is slightly brighter on the actual glazing than on the surrounding cladding, in particular with incident light grazing or in reflection.
    [0019] The first grid area and the second grid area preferably have a basic rectangular shape with uncoated areas, as described above, in the form of grid lines arranged in a similar manner to the grid. The distance between the individual grid lines is governed by the relevant electromagnetic radiation wavelength for whose increased transmittance is desired.
    [0020] The grid lines of the first grid area transit on at least one long side within an open comb structure. The term "comb structure" describes a grid area in which, on at least one side, grid lines are not closed by surrounding themselves and thus form a comb-like structure with teeth or spikes. At the same time, the grid lines of the second grid area transit on at least one long side within a closed comb structure, with the closed comb structure delimited towards the outside by an enclosing grid line.
    [0021] The first and second grid area are arranged so that the first grid area is connected, via at least one tooth of the open comb structure, to the closed comb structure of the second grid area. This is accomplished by the fact that at least one tooth of the open comb structure touches a grid line delimiting or superimposing the second grid area.
    [0022] The result is that, through the connected grid areas, the electrical conductivity of the coating is interrupted and a contiguous electrically conductive area of the coating between the grid areas is no longer present. This creates an enlarged communication window composed of the first and second grid areas, that is, an enlarged area that is transparent to electromagnetic radiation in the desired wavelength range.
    [0023] The particular advantage of this arrangement, according to the invention, is that no broken visually magnified lines or double lines can form in the connecting region between the first grid area and the second grid area. Such double lines are known from the prior art, where two grid areas with a mutually closed comb structure overlap. Due to the imprecise positioning of the decoating method, it is impossible, according to the prior art, to arrange the delimiting grid line of the first grid area with the delimiting grid line of the second grid area congruently one above the other.
    [0024] In an advantageous embodiment of the invention, at least two teeth of the open comb structure are connected to the closed comb structure, since thus the area of the electrically conductive layer located between the teeth is interrupted by the electrically conductive layer remaining surrounding. The two teeth are connected to the closed comb structure, preferably at the respective outer areas of the open comb structure and particularly preferably at the respective neighbor of the last teeth. This ensures safe electrical isolation of the region between the teeth, even if there is a slight horizontal displacement of the grid areas from each other. In another advantageous embodiment of the invention, substantially all teeth of the respective open comb structure are connected to the closed comb structure. This has the particular advantage that a safe interruption of the electrically conductive layer occurs over a large area, and the transition area between the grid areas has transmittance for electromagnetic radiation in the desired frequency range at a level similar to that of the grid areas . Here, "substantially all teeth" means that, in the event of a horizontal displacement of the grid areas to each other, one of the outer teeth does not have to or can be connected to the closed comb structure, if it is laterally disposed close to the second area of grid.
    [0025] According to the invention, it is sufficient that the teeth of the open comb structure touch the closed comb structure, so that the metal-containing coating is electrically separated with suitably high impedance. However, the teeth may also extend through the closed comb structure by an overlap d and, in particular, with its enclosing grid line.
    [0026] In an advantageous embodiment of the invention, the overlap d is from 0 mm to 0.4 mm, preferably from 0 mm to 0.2 mm and particularly preferably from 0 mm to 0.1 mm. Here, an overlap of d = 0 means that a tooth touches the limitedly extended bounding grid line of the other grid area, but does not protrude beyond it.
    [0027] Such an overlay has the particular advantage that, despite the imprecise positioning of the laser system, a safe uncoating of the metal-containing coating can be done in the connection region.
    [0028] In an alternative advantageous embodiment of the invention, the overlap d is from 0% to 200% and preferably from 0% to 100% of the relative positioning accuracy Δy of the laser system. Relative positioning accuracy Δy is the positioning accuracy with which two grid areas can be arranged against each other and indicates the relative deviation from the nominal value. Here, an overlap of d = 0%*Δy means that a tooth touches the limitedly extended bounding grid line of the other grid area, but does not protrude beyond it. The relative positioning accuracy Δy of the laser system is, for example, less than or equal to 200 µm, preferably less than or equal to 50 µm. Such an overlay has the particular advantage that, despite the positioning inaccuracies of the laser system, a safe uncoating of the metal-containing coating can be done in the connection region.
    [0029] In the coated glazing according to the invention, the first grid area is connected, via the open comb structure, to the closed comb structure of the second grid area. The term "first grid area" describes any grid area within the communication window with at least one long side with an open comb structure. Here, “long side” means each side delimiting the grid areas in the plane of the pane. It is understood that, for sequencing more than two grid areas, one or a plurality of grid areas may also have comb structures open on multiple long sides. The term "second grid area" describes another grid area with at least one closed comb structure as a long side. (In the context of the invention, the terms "first" and "second" grid areas consequently describe any grid areas in which the conditions mentioned above apply.) By means of connection, according to the invention, of at least two grid areas, double lines and uncoated regions are avoided. This reduces the perception of connection between individual grid areas, otherwise supposed to disturb the human eye. Unextracted areas between the tiles can also weaken or even break the transparency of the communication window to desired electromagnetic radiation.
    [0030] The grid lines preferably have a width from 40 μm to 200 m, preferably from 70 μm to 120 μm. The width is governed by the relevant electromagnetic radiation and the optical resolution of the laser scan required for its production.
    [0031] The grid lines preferably form squares and/or rectangles. In the case of curved panes, in particular with three dimensionally curved panes, the rectangular shapes can deviate from the right angle, and transition, for example, to a trapezoid or a parallelogram. Depending on the glazing geometry, rounded or partially rounded communication windows are also possible.
    [0032] Grid areas are advantageously implemented as rectangles, squares, or trapezoids. This has the particular advantage that a plurality of grid areas can, in a simple way, be combined in a manner according to the invention to form a continuous communication window.
    [0033] The grid lines preferably have a distance g between them of 0.2 mm to 15 mm, preferably 0.7 mm to 3 mm. The preferred distance between the grid lines enables adequate transparency for high-frequency electromagnetic radiation and, in particular, for radio or radar radiation.
    [0034] In an advantageous embodiment of the invention, the two grid areas have a displacement h of 0% to 50% of the distance g between the grid lines. The deviation h is preferably from 0% to 20% and particularly preferably from 0% to 10% of the distance g between the grid lines. The offset h is defined orthogonal to the direction of the grid lines with teeth. By means of such a small offset h, the grid lines of the first grid area are continued virtually and congruently by the grid lines of the second grid area, and this produces a negative hardly perceptible visual impact.
    [0035] In an advantageous embodiment of the invention, all teeth of the open comb structure have the same length a. The length a of the teeth is preferably from 50% to 150% of the sum of the distance g between the grid lines and the relative positioning accuracy Δy, particularly preferably from 80% to 120% of the sum of the distance g between the lines of grid lines and the relative positioning accuracy Δy, and in particular from 95 % to 105 % of the sum of the distance g between the grid lines and the relative positioning accuracy Δy. The smaller the deviation of tooth length a from the distance g between the grid lines, and the smaller the overlap d of the teeth through the closed comb structure, the flatter the transition between the two grid areas, and the more homogeneous and non-disruptive the visual aspect of the transition region, between the first grid area and the second grid area.
    [0036] It is understood that, without restricting the invention, even in the case of the closed comb structure, the grid lines running orthogonal to it may project slightly beyond the enclosing grid line. This can, in particular, already result in the laser scan's positioning accuracy within a grid area. In an advantageous embodiment, the grid lines protrude from 0% to 10% of the distance g between the grid lines beyond the bounding grid area; preferably, the overlap is less than or equal to the laser scanner's positioning accuracy within a grid area.
    [0037] The metal-containing coating is preferably impermeable to radio and/or radar radiation, in other words, electromagnetic radiation in the radio frequency range, such as FM, AM, UHF, VHF, DAB, mobile telephony, in the GSM 900, GSM 1800, and UMTS bands, satellite-assisted navigation (GPS), or microwave radiation. In the area of the communication window, according to the invention, the metal-containing coating is transparent to the radiation mentioned above, depending on grid parameters such as distance between grid lines and grid mesh shape.
    [0038] The invention further comprises a motor vehicle glazing and, in particular, a windshield or a rear window with the characteristics of the glazing coated with a communication window, according to the invention.
    [0039] The invention further comprises a method for producing a coated glazing with a communication window. In a first step of the process, a base glazing is provided, for example a motor vehicle windshield with a coating containing metal. Optionally, additional dielectric and additional metallic layers can also be applied. In the next step, the metal-containing coating is locally decoated in the form of grid lines with a laser, and a first grid area with at least one long side with an open comb structure is obtained. Then, the metal-containing coating adjacent to the first grid area is locally decoated in the form of grid lines with a laser, and a second grid area with at least one long side with a closed grid is obtained. The arrangement of the second grid area is made such that the first grid area is connected, via the open comb structure, to the closed comb structure of the second grid area.
    [0040] In an alternative embodiment, the second grid area can also be initially decoated with a closed comb structure and then the first grid area, with an open comb structure, can be connected to the second structure of comb.
    [0041] The connection, according to the invention, of the grid areas, via an open and a closed comb structure, prevents or reduces the formation of visually disruptive double lines and, thus, inhomogeneities in the visual aspect.
    [0042] The metal-containing coating is preferably decoated with a laser. The laser enables very accurate and reproducible extraction of the metal-containing coating.
    [0043] The laser is preferably guided at a speed of 100 mm/s to 10,000 mm/s. The laser preferably has an output of 1W to 10kW and/or preferably includes a carbon dioxide laser, YAG laser, Nd:YAG laser, ytterbium:YAG laser, holmium:YAG laser, laser of erbium:YAG, neodymium:glass laser, eximere laser, fiber laser, disk laser, plate laser, or diode laser.
    [0044] The laser is preferably guided by a plotter. The plotter can also increase the size of grid areas.
    [0045] The invention further comprises the use of the coated glazing, according to the invention, with a communication window as architectural glazing, motor vehicle, ship, aircraft, helicopter, or train. The glazing coated with a communication window according to the invention is preferably used as a motor vehicle windshield or rear window.
    [0046] Another aspect of the invention relates to a glass pane coated with a communication window, comprising at least: a. a base glazing, b. a metal-containing coating c. a first grid area and a second grid area within the metal-containing coating, d. wherein the first grid area and the second grid area are rectangular in shape and have uncoated regions in the form of grid lines arranged in a grid-like manner, e.g. the grid lines of the first grid area transit at least one long side within an open comb structure, and the grid lines of the second grid area transit at least one long side within a closed comb structure, in that f. the first grid area is connected, via the open comb structure, to the closed comb structure of the second grid area, and the closed comb structure and the open comb structure end flush.
    [0047] In the following, the invention is explained in detail with reference to the drawings. The drawings are schematic representations and are not full scale. In no way do they restrict the invention.
    [0048] They represent:
    [0049] Fig. 1 a schematic view of an arrangement of two grid areas according to the prior art,
    [0050] Fig. 2 a schematic view of an arrangement of two grid areas, according to the invention,
    [0051] Fig. 3 an enlarged schematic view of two grid areas connected, according to the invention, according to Fig. 2,
    [0052] Fig. 4A is a schematic view of a grid area with an open comb structure,
    [0053] Fig. 4B a schematic view of a grid area with a closed comb structure,
    [0054] Fig. 5: an enlarged schematic view of an alternative embodiment of two connected grid areas according to the invention,
    [0055] Fig. 6A is a schematic view of an alternative grid area with an open comb structure,
    [0056] Fig. 6B a schematic view of an alternative grid area with a closed comb structure,
    [0057] Fig. 7 a schematic view of a communication window with four grid areas connected according to the invention.
    [0058] Fig. 8 a schematic view of the pane covered with a communication window, and
    [0059] Fig. 9 a flowchart of the method for producing a coated glazing with a communication window.
    [0060] The alignment of the uncoated 40.2 grid lines is for illustrative purposes only; the 40.2 grid lines are, in practice, implemented continuous.
    [0061] Fig. 1 represents a schematic view of an arrangement of two grid areas 30.1, 30.2 according to the prior art. The upper grid area 30.1 is formed by uncoated grid lines 40.2 on a metal-containing coating 2. The lower grid area 30.2 is also formed by uncoated grid lines 40.2 over the metal-containing coating 2. In the connection region A, between the upper grid area 30.1 and the lower grid area 30.2, there is an overlap of grid lines 40.1, 40.2. Ellipse A is for illustrative purposes only and not part of the communication window. In particular, the two horizontally running grid lines 40.1 and 40.2, arranged directly adjacent to each other, have only a small distance between them, which results in linear enlargement or doubling of grid lines 40.1, 40.2 in the connection region A. One such arrangement of two grid lines 40.1, 40.2 is perceived as the visual inhomogeneity in connection region A is very disruptive and obstructing direct vision. Such a communication window would only be poorly suited for use on a motor vehicle windshield.
    [0062] Fig. 2 represents a schematic view of an arrangement, according to the invention, of two grid areas 3.1, 3.2 that, together, form a communication window 7. Fig. 3 represents an enlarged detail of the region connection B' of Fig. 2. Fig. 4A represents a unique representation of the first grating area 3.1 with an open comb structure 6, and Fig. 4B a unique representation of the second grating area 3.2 with a comb structure closed 8.
    [0063] As can be discerned in detail in Fig. 4A, the first grid area 3.1 has a plurality of uncoated grid lines 4.1 arranged horizontally and vertically which form a grid structure with, for example, rectangular meshes. 4.1 grid lines are, for example, produced by decoating a metallic coating 2 using a laser scanner.
    [0064] The first grid area 3.1 has, on one long side, an open comb structure 6, which is formed from individual teeth 5. Teeth 5 are preferably a continuation of grid lines 4.1, arranged vertically in this example . The distance g between the grid lines is, in this example, 2 mm, the length a of the teeth is, for example, also approximately 2.1 mm, which corresponds, for example, to the sum of the distance g between the lines of 2 mm grid and a Δy relative positioning accuracy of 0.1 mm.
    [0065] As can be distinguished in detail in Fig. 4B, the second grid area 3.2 has a plurality of uncoated grid lines 4.2 arranged horizontally and vertically, which form a grid structure with, for example, rectangular meshes. Advantageously, the second grid area 3.2 has the same mesh size as the first grid area 3.1. The distance g between the grid lines is therefore also 2 mm. Furthermore, the 4.2 grid lines are produced in a manner analogous to the 4.1 grid lines, for example, by decoating the metallic coating 2 using a laser scanner.
    [0066] The second grid area 3.2 has, in this example, a closed comb structure 8 on all long sides. Here, the term "closed comb structure 8" means that the 3.2 grid area has, at its outer boundary, a boundary or boundary 4.2' grid line, and no 4.2 grid line running orthogonal to it projects beyond the delimiting grid line 4.2'.
    [0067] Fig. 2 represents an arrangement, according to the invention, of the first grid area 3.1 and the second grid area 3.2. The first grid area 3.1 is connected, via the teeth 5 of the open comb structure, to the bounding grid line 4.2’ of the closed comb structure 8 of the second grid area 3.2.
    [0068] Fig. 3 represents an enlarged schematic view of the connection region B' of the two grid areas 3.1 and 3.2 connected, according to the invention, according to Fig. 2. The teeth 5, of the comb structure open 6 of the first grid area 3.1, overlap the enclosing grid line 4.2' of the second grid area by an overlap d of 0 to 0.4 mm and, for example, by 0.1 mm. By connecting, according to the invention, an open comb structure 6 and a closed comb structure 8, the formation of a visually disruptive double line is surely avoided, as is known according to the prior art in Fig. 1.
    [0069] The first grid area 3.1 and the second grid area 3.2 are shifted from each other in the horizontal direction by a distance h. The displacement h is advantageously less than or equal to 10% of the distance g between the grid lines and is, for example, 0.1 mm. Since the 4.1 and 4.2 vertically arranged grid lines only overlap in a very small range of length d, the glazing user may not distinguish disruptive double line or line magnification in this direction.
    [0070] Fig. 5 represents an enlarged schematic view of an alternative embodiment of two grid areas 3.1 and 3.2 connected according to the invention. Fig. 6A represents a detailed isolated representation of the first grid area 3.1 with an open comb structure 6. The first grid area 3.1 of Fig. 6A differs from the first grid area 3.1 of Fig. 4A only because of the length of the teeth 5.1, 5.2 and is anyway configured in the same way. In the first grid area 3.1 of Fig. 6A, for example, two teeth 5.2 have a length a and are thus longer by a length c than the teeth 5.1 with a length b. Length b is, for example, 2 mm; length a is, for example, 2.1 mm, so the longer teeth 5.2 are set longer by 5% and, for example, longer by a relative positioning accuracy Δy of 0.1 mm than the shorter teeth 5.1. Here, the longest teeth 5.2 with length a are arranged on the respective neighbor-to-the-last teeth of the open comb frame. This has the advantage that even with a small displacement h, which results from the relative positioning accuracy in the horizontal direction here, both longer teeth 5.2 can be connected to the closed comb structure 8, while one of the farthest teeth runs laterally close. to the closed comb structure 8.
    [0071] Fig. 6B represents a detailed representation of the second grid area 3.2 with a closed comb structure 8, wherein the second grid area 3.2 corresponds to the grid area 3.2 of Fig. 4B.
    [0072] As can be distinguished from Fig. 5, only teeth 5.2 with length a are connected to the second grid structure 3.2 and have an overlap d of, for example, 0.05 mm.
    [0073] In the arrangement of Fig. 5, a small double line with the overlap length d can be distinguished only in the overlap region d of the teeth 5.2 with the length a. In the region of teeth 5.1 with length b, a small gap may occur, which is hardly visually perceptible. Ideally, teeth 5.1 with length b contact up to the 4.2’ bounding grid line of the closed comb frame 8 of the second grid. By means of this embodiment of the invention, even less disruption of direct-view can be obtained than with the no-improvement embodiment according to Fig. 3.
    [0074] Fig. 7 represents a schematic view of a communication window 7 with, for example, four grid areas 3.1, 3.2, 3.3, 3.4 connected according to the invention. In order to obtain larger communication windows 7, any number of grid areas can be connected together in accordance with the principles of the invention. In each case, the open comb structure 6 of a grid area is connected, via its teeth, to the closed comb structure 8 of an adjacent grid area.
    [0075] In the illustrated example, the first grid area 3.1 has an open comb structure 6 on its long bottom side. The open comb structure 6 on the underside is connected to the closed comb structure 8 of a second grid area 3.2. A third grid area 3.3 is disposed adjacent to the second grid area 3.2. The second grid area 3.2 is connected, via another open comb structure 6, to the closed comb structure 8 of the third grid area 3.3. The third grid area 3.3 is connected, via a closed comb structure 8 on its upper long side, to an open comb structure 6 of a fourth grid area 3.4. The fourth grid area 3.4 is in turn connected, via a closed comb structure 8, to an open comb structure 6 of the first grid area 3.1. It is understood that any number of grid areas, even with a displacement or different shapes and sizes, can thus be sequenced together, with in each case two grid areas connected to each other via an open comb structure. In this way, the size and properties of the communication window can be flexibly adapted to the respective circumstances.
    [0076] Fig. 8 represents a schematic view of the glass pane coated with a communicating window 7. A metal-containing covering 2 is situated on the base pane 1, for example a motor vehicle windshield. Unlike the metal-containing coating, the partially uncoated communication window 7 is transparent to high-frequency electromagnetic radiation, for example, in the radio frequency range and in the microwave range. The metal-containing coating 2 can be arranged inside a composite glazing. Alternatively, the metal-containing coating 2 can be disposed on one of the outer sides of a single glass pane or a composite glass pane. The transparency of the glazing to infrared radiation is significantly reduced by the metal-containing coating 2. This is only insubstantially affected by the partially uncoated communication window 7.
    [0077] Fig. 9 represents a flowchart of an exemplary embodiment of the method, according to the invention, for producing a coated glazing with a communication window 7. In a first step of the process, a base glazing 1 is provided with a metal-containing coating 2. In the next step, the metal-containing coating 2 is locally decoated with a laser in the form of grid lines 4.1, and a first grid area 3.1 with at least one long side with a grid structure is obtained. open comb 6. Then, the metal-containing coating 2 is locally decoated adjacent to the first grid area 3.1, also with a laser, in the form of grid lines 4.2, and a second grid area 3.2 with a shorter long side is obtained. with a closed comb structure 8. The second grid area 3.2 is arranged so that the first grid area 3.1 is connected, via the teeth 5 of the open comb structure 6, with the closed comb structure 8 of the second area of grid 3.2.
    [0078] List of Reference Characters 1 base glazing 2 metal-containing coating 3.1 first grid area 4.2 second grid area 1.1 grid lines of first grid area 3.1 1.2 grid lines of second grid area 3.2 1.3' borderline or delimiting grid line of the closed comb structure 8 5 , 5.1, 5.2 tooth 6 open comb structure 7 communication window/arrangement of grid areas 3.1, 3.2, according to the invention 8 closed comb structure 30.1, 30.2 prior art grid area 40.1, 40.2 prior art grid lines a tooth length 5 and 5.2 b tooth length 5.1 c overlap length g distance between grid lines Δy positioning accuracy relative of the laser system A connection region between grid area 3.2 and grid area 3.2' according to prior art B connection region between first grid area 3.1 and second grid area 3.2, according to invention. Good detail
    权利要求:
    Claims (4)
    [0001]
    1. A method for producing a glazing coated with a communicating window (7) comprising: in a first step, providing a base glazing (1) with a metal-containing coating (2); and in a second step, in a first alternative: i) the metal-containing coating (2) is locally uncoated, in a first region of the pane, with a laser to form a plurality of separate parallel horizontal uncoated lines and a plurality of lines separate and parallel vertical uncoated intersecting to form a first grid area (3.1) having a mesh structure, the first grid area (3.1) additionally having at least one long side with an open comb structure (6) with teeth (5) disposed in a first edge region of the first grid area (3.1), the teeth (5) being formed by extensions of the plurality of parallel vertical uncoated lines and separated in addition to a last uncoated line of the plurality of parallel horizontal uncoated lines and separated, and ii) the metal-containing coating (2), adjacent to the first grid area (3.1), is locally uncoated, in a second region of the glazing, with a laser to form a plurality of separate parallel horizontal uncoated lines and a plurality of separate parallel vertical uncoated lines intersecting to form a second grid area (3.2) having a grid structure, the second grid area (3.2 ) additionally having at least one long side with a closed comb structure (8), arranged in a second edge region of the second grid area (3.2), the closed comb structure (8) being formed by an uncoated first line of the plurality of parallel and separate horizontal uncoated lines that coincide with the ends of the plurality of parallel and separate vertical uncoated lines in the second edge region, or in a second alternative: i) the metal-containing coating (2) is locally uncoated, in a second region of the glazing, with a laser to form a plurality of parallel and separate horizontal uncoated lines and a plurality of parallel and separate vertical uncoated lines intersecting to form a second grid area having a grid structure, the second grid area additionally having at least one long side with a closed comb structure (8) disposed in a second edge region of the second grid area, the closed comb structure being formed by a first uncoated line of the plurality of separate parallel vertical uncoated lines that coincide with ends of the plurality of separate parallel horizontal uncoated lines in the second edge region, and ii) the metal-containing coating adjacent to the second grid area is locally uncoated, in a first region of the pane, with a laser to form a plurality of separate parallel horizontal uncoated lines and a plurality of separate parallel vertical uncoated lines that intersect to form a first grid area having a network structure , the first grid area additionally having at least one long side with an open comb structure (6) with teeth disposed in a first edge region of the first grid area, the teeth being formed by extensions of the plurality of parallel vertical bare lines and separated beyond a last uncoated line of the plurality of parallel and separate horizontal uncoated lines, wherein in the first alternative and in the second alternative step i) is performed before step ii), characterized by the fact that in the first alternative and in the second Alternatively the first glazing region and the second glazing region only overlap in the first and second edge regions so that the first grid area (3.1) and the second grid area (3.2) are connected by connecting at least a tooth (5) of the open comb structure (6) to the first uncoated line of the closed comb structure (8).
    [0002]
    2. Method according to claim 1, characterized in that the laser is guided at a speed of 100 mm/s to 10,000 mm/s.
    [0003]
    3. Method according to claim 1, characterized in that the laser comprises a carbon dioxide laser, YAG laser, Nd:YAG laser, ytterbium:YAG laser, holmium:YAG laser, erbium laser :YAG laser, neodymium:glass laser, eximere laser, fiber laser, disk laser, plate laser, or diode laser, and the laser outputs from 1W to 10kW.
    [0004]
    4. Method according to claim 1, characterized in that: a distance g between any two consecutive uncoated lines of the plurality of parallel vertical uncoated lines separated from the first and second grid areas (3.1, 3.2) is constant, and the connection between the first and second grid areas (3.1, 3.2) provides an offset in alignment between the plurality of parallel vertical uncoated lines and separate from the first and second grid areas (3.1, 3.2) which is in the range of 0% at 10% of the distance g.
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    同族专利:
    公开号 | 公开日
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    EP2890655B1|2019-03-20|
    EA201890044A2|2018-05-31|
    PT2890655T|2019-07-17|
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    TR201909191T4|2019-07-22|
    JP2015533756A|2015-11-26|
    CA2881179A1|2014-03-06|
    CA2881179C|2018-01-02|
    EA029588B1|2018-04-30|
    KR20150048194A|2015-05-06|
    BR112015003863A2|2017-07-04|
    MX2015002458A|2015-06-05|
    ES2731756T3|2019-11-18|
    WO2014033007A1|2014-03-06|
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    MX358621B|2018-08-28|
    CN104583146B|2017-02-22|
    EA201590445A1|2015-06-30|
    PL2890655T3|2019-09-30|
    KR101704313B1|2017-02-07|
    EA201890044A3|2018-07-31|
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    JP2017186251A|2017-10-12|
    JP6566987B2|2019-08-28|
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    法律状态:
    2018-03-06| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2018-03-20| B06I| Publication of requirement cancelled [chapter 6.9 patent gazette]|Free format text: ANULADA A PUBLICACAO CODIGO 6.6.1 NA RPI NO 2462 DE 13/03/2018 POR TER SIDO INDEVIDA. |
    2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-30| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2021-06-15| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-06| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/08/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12181939.5|2012-08-28|
    EP12181939|2012-08-28|
    PCT/EP2013/067294|WO2014033007A1|2012-08-28|2013-08-20|Coated pane having areas in which the coating is partially removed|
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