VEHICLE GLASS, VEHICLE AND MANUFACTURING PROCESS

Description

[0001] The invention relates to a vehicle window, a vehicle with a vehicle window and a method for manufacturing a vehicle window.

[0002] Vehicle windscreens with sensors are known from the prior art, for example from publication EP 2 121 308 B1. These sensors can also be integrated into the vehicle windscreen (between individual layers of the vehicle windscreen), as described in EP 2 121 308 B1.

[0003] In general, the known solutions for vehicle windows, which may be equipped with sensors, are perceived as being comparatively susceptible to interference with regard to their optical properties.

[0004] During the manufacturing of a vehicle windshield, a bending process is carried out under thermal influence. The windshield can have different temperatures along its transparent and printed (or black-printed) areas, which can lead to variations in its bending behavior. As a result, for example, transparent and black-printed areas of the windshield may have different bending radii.

[0005] The consequence of such deviations or variations in the bending radii is significant distortion along the vehicle windshield. So-called "focal lines" appear along the boundaries between transparent and black-printed areas of the windshield.

[0006] The focal lines cause diffraction of light, resulting in optical distortion. The presence of focal lines as an optical property or effect can therefore significantly influence, for example, the accuracy of optical sensors. Furthermore, such distortions in the peripheral areas of the vehicle windshield are also perceptible to a driver and at least detract from the overall impression.

[0007] Black printed areas are provided along sensor arrangements on vehicle windows, among other reasons, for aesthetic reasons, for example to conceal adhesive points for attaching the sensor units.

[0008] The invention is therefore based on the objective of providing a vehicle windscreen that conveys an aesthetically pleasing, distortion-free appearance, is cost-effective to manufacture, and offers improved optical properties.

[0009] The object of the present invention is achieved according to the invention by a vehicle windscreen according to independent claim 1. A manufacturing method is specified by a further independent claim. Advantageous embodiments and further developments will become apparent from the dependent claims and from the description with reference to the figures.

[0010] The vehicle windscreen according to the invention, in particular for a motor vehicle, bus, train or ship, is provided with at least one first windscreen element and a second windscreen element which are connected to each other over a surface, such that the vehicle windscreen has a first windscreen surface, a second windscreen surface, a third windscreen surface and a fourth windscreen surface. The second windscreen surface has a first pressure area and the third or fourth windscreen surface has a second pressure area, for forming a viewing area along a vehicle windscreen.The first and second printing areas are each designed with at least one first, second and third zone, wherein at least one of the first and / or second zones is at least partially printed and the third zones are each unprinted, and wherein the second zones are each designed as a transition area between the first zone and the third zone, such that at least one optical effect of the first printing area can be compensated, preferably is compensated, by an optical effect of the second printing area.

[0011] The invention is based on the idea that the first and second disc elements of a vehicle disc are each designed with pressure areas, so that any optical effects or optical properties that occur cancel each other out or compensate for each other.

[0012] By designing the first and second printing areas with different adapted or coordinated zones, optical effects and properties can be compensated for, for example, a focal line or optical diffraction within the vehicle windscreen. In particular, corresponding optical effects should be provided so that, in total, these effects preferably cancel each other out.

[0013] By eliminating or avoiding optical effects or properties along the vehicle windscreen, particularly in the field of vision of a driver and / or an optical sensor or sensor arrangement, at least a distortion-free appearance, comfortable viewing conditions for a driver and / or improved accuracy or reproducibility of the results from sensors or sensor arrangements can be achieved.

[0014] In particular, it is intended that, based on the present invention, a vehicle windscreen with advantageous optical properties can be provided for use with an optical sensor.

[0015] Furthermore, it may be provided that, based on the present invention, a vehicle windscreen with advantageous optical properties can be made available to a vehicle driver.

[0016] The vehicle windscreen according to the invention has at least a first windscreen element and a second windscreen element which are connected to each other over a surface, so that the vehicle windscreen is designed with a first windscreen surface, a second windscreen surface, a third windscreen surface and a fourth windscreen surface.

[0017] Preferably, the first and second pane elements are arranged on top of each other and bonded together by lamination. A lamination layer can thus be provided between the first and second pane elements. This corresponds to a commonly used method for providing bonded pane elements for a vehicle windshield.

[0018] The laminated disc elements provide a basic structure for an optical system of a vehicle window.

[0019] Based on the connected disc elements, a total of four disc surfaces are available. The first disc surface represents the outer surface of the vehicle disc. The fourth disc surface represents the inner surface of the vehicle disc.

[0020] The second and third disk surfaces are oriented in opposite directions, with a lamination layer possibly provided between them.

[0021] The second disc surface has a first pressure area and the third or fourth disc surface has a second pressure area, for the design of a viewing area along a vehicle disc, e.g. for at least one optical sensor.

[0022] The present invention provides for the design of a vehicle windshield or a viewing area along a vehicle windshield with advantageous optical properties. This applies both to the driver of a motor vehicle, a ship, or the like, and to the use of sensors or optical sensors. The present invention will be explained below by way of example, particularly with regard to the use of optical sensors, using the same embodiments as an example for a vehicle driver.

[0023] In the context of the present invention, a printing area can be understood in particular as an area of ​​a disk surface or disk element which can be suitably coated, for example by means of black printing or screen printing, and in particular can be partially coated.

[0024] A print area can therefore have continuously printed areas or zones, partially printed areas and unprinted areas.

[0025] The second pressure area can be arranged along the third or fourth sliding surface. Preferably, and as illustrated below, the second pressure area is arranged on the fourth sliding surface.

[0026] In this sense, a third pressure area can also be provided, e.g. on the third disk surface.

[0027] The field of vision, as defined in the present invention, can be understood as that area of ​​a vehicle windscreen which influences the optical properties, conditions, or circumstances of a sensor measurement or the field of vision of a vehicle driver.

[0028] Depending on the application and specific case, both central and peripheral areas of a vehicle windshield can be assigned to the driver's field of vision. While a sensor is primarily assigned a field of vision in the more central sections of a vehicle windshield, a driver's field of vision can encompass the entire surface of a vehicle windshield, including the edges.

[0029] The field of view can thus be defined as the area in which the sensor or sensor arrangement can "see" optical effects or optical properties of a vehicle window, i.e., an influence on the measurement results of the respective sensor.

[0030] Accordingly, the field of view does not refer, for example, merely to a transparent area of ​​a vehicle window through which electromagnetic radiation can pass during an optical measurement. Rather, the field of view, as defined in the present invention, also encompasses surrounding or peripheral areas that can, in particular, influence the refractive power of the first and / or second window element along the optical axis of the at least one sensor.

[0031] According to the present invention, the first and second printing areas are each configured with a first, second and third zone, wherein at least one of the first and / or second zones (14.1; 14.2; 15.1; 15.2) is at least partially printed and the third zones are each unprinted, and wherein the second zones are each configured as a transition zone between the first zone and the third zones, such that at least one optical effect of the first printing area can be compensated by an optical effect of the second printing area.

[0032] The first and second printing areas can each be subdivided into three zones with regard to their design. Within the scope of the present invention, these zones can be understood as preferably distinguishable surface areas or sections within a viewing area of ​​the optical sensor.

[0033] The first zone represents a zone that influences the overall optical behavior of the vehicle window. Preferably, the first zone has a print, in particular a black print. Alternatively, the first zone can be at least partially unprinted.

[0034] The second zone represents a transition area between the first and third zones. Thus, the second zone can be understood as a printed area, specifically a partially printed area, to provide a transition between the first and third zones.

[0035] Alternatively, the second zone can be integrated into a first zone.

[0036] In this sense, the second zone can represent a progressive, gradual or soft transition, or an abrupt, immediate, hard or infinitesimally short transition between the first and third zones.

[0037] The third zone is always designed as a transparent area between the first and second printed surfaces. By being transparent or unprinted, the third zone represents a portion of the first and second printed surfaces through which, for example, an optical sensor or a driver can see. In this sense, the third zone can be understood as the area framed by the first and / or second zone.

[0038] The compensation of optical effects or properties based on the first and second pressure areas means in particular that, for example, diffraction through the first pressure area can be canceled out by means of an inverted or corresponding diffraction of the second pressure area.

[0039] In particular, for the purposes of the present invention, the compensation of an optical effect is to be understood as the compensation of an optical distortion, so that a vehicle window is completely or almost completely free of distortion.

[0040] Preferably, an inverted optical effect can be achieved by the second printing area, which corresponds in magnitude to an optical effect of the first printing area in this sense.

[0041] For example, the first disk element with the first pressure area can form a converging or concave lens, while the second disk element with the second pressure area forms a diverging or convex lens, so that the combination of the first and second disk elements results in a neutral optical system.

[0042] In the context of the present invention, the compensation of at least one optical effect can be understood as the targeted cancellation of optical effects by means of opposing, optically inverting components.

[0043] The fully assembled beam path through the vehicle windshield preferably exerts no or virtually no influence on the transmitted optical radiation. In this sense, the beam path provided by the vehicle windshield according to the invention can be considered a neutral beam path.

[0044] It is possible to transfer optical radiation through the vehicle window unaffected or almost unaffected.

[0045] In this context, compensation through screen printing or black printing can also be understood as over- or under-compensation of optical effects, so that the entire optical system, for example, has no or almost no refractive power.

[0046] Such overcompensation can not only eliminate the optical effects or distortions caused in particular by screen printing or black printing, but also compensate for additional optical effects of the vehicle window as a complete optical system.

[0047] Alternatively, screen printing or black printing can be used as an undercompensation to eliminate only part of the optical effects, so that the sum of optical effects of the overall system again has no or almost no optical distortions.

[0048] Thus, by means of on-demand overcompensation according to the present invention, preferably all or almost all optical effects within an overall optical system of a driver, a sensor or optical sensor or the like can be eliminated.

[0049] In general, the present invention makes it possible to avoid optical impairment or distortion of measurement results due to, for example, focal lines or diffraction effects.

[0050] Furthermore, other factors can affect the optical properties or conditions of a vehicle window. In particular, the thickness of the individual window elements or of the vehicle window as a whole, the color of the window elements, the lamination layer between the at least two window elements, or coatings on or between the window elements can influence the optical conditions within the meaning of the present invention.

[0051] In accordance with the present invention, it may be provided that the first and / or second pressure area is designed in such a way that the overall optical system of the vehicle window has no or virtually no optical effect, in particular no optical refractive power, and thus a neutral optical system can be provided.

[0052] For example, the pane elements can have different or identical thicknesses. In particular, pane thicknesses are provided that correspond to the dimensions commonly used in the automotive sector. Furthermore, the use of thin glass for one or both pane elements is conceivable, e.g., with thicknesses of less than or equal to 1.2 mm, preferably less than or equal to 1.0 mm, and particularly preferably from 0.6 mm to 1.0 mm.

[0053] Regarding the color of individual disc elements, it may be provided that at least one of the disc elements has a coloring in green, blue, white or another coloring that is common in the field of motor vehicles.

[0054] Furthermore, coatings along the disc surfaces, especially along the second, third or fourth sliding surface, are conceivable, such as an infrared-reflecting coating or a coating to reduce heat radiation ("low-emissivity" coating).

[0055] For example, an infrared-reflecting coating can also be incorporated within a lamination layer between the two glass elements. This lamination layer could consist of two polyvinyl butyral (PVB) layers or films. An infrared-reflecting or infrared-absorbing intermediate layer could be placed between the two PVB layers, resulting in a sandwich construction.

[0056] Furthermore, the printing areas can be adapted to other factors in their specific design with regard to shape and printing form, such as covering adhesive surfaces of a sensor or sensor unit, providing a printed surface as an adhesive surface for other components, or the like.

[0057] In summary, the present invention provides for a targeted adaptation of the first and second printing surfaces to the conditions of a vehicle windshield in order to compensate for optical effects or properties and, in particular, to provide a distortion-free vehicle windshield.

[0058] According to one embodiment, it is provided that a refractive force as an optical property of the first disc element in the first pressure range can be compensated by a refractive force as an optical property of the second disc element (12) in the second pressure range.

[0059] In particular, the occurrence of a focal line at a transition between a zone printed at least partially in black and a transparent zone of a printed area can be reduced or avoided. In this sense, optical diffraction can be counteracted by ensuring that the second printed area has an inverted refractive power that is equal in magnitude to the refractive power of the first printed area.

[0060] According to another embodiment, the first zone of the first printing area is printed continuously or with a pattern of individual elements.

[0061] Continuous pressure refers specifically to the complete coating of a surface during a printing process, such as screen printing. In this case, the first zone, in the case of black printing, is completely black-colored or coated. This achieves maximum absorption of incident electromagnetic radiation and the opacity of the first zone.

[0062] A pattern is created by a recurring, relative arrangement of individual elements to each other.

[0063] In one embodiment, the second zone of the first printing area is at least partially designed as a pattern of printed individual elements.

[0064] The second zone can, in this sense, contain areas that are either fully printed or unprinted. Furthermore, the second zone of the first printed area must have at least one section that is decorated with a pattern of individual elements.

[0065] The design of the second zone of the first printing area can be such that the second zone is complemented by the first zone and / or the third zone. For example, the second zone can only partially surround the third zone to provide a transition between the first and third zones in this area.

[0066] The specific design of the first, second and third zones of the first and second printing area is always based on the desired optical end result, which results from a combination of the first and second disc elements.

[0067] The formation of the first, second and third zones of the first and second pressure area can be varied and coordinated as needed.

[0068] In another embodiment, the first zone of the second printing area is continuous, printed with a pattern of individual elements, or unprinted.

[0069] Thus, the first zone of the second printing area, just like the first zone of the first printing area, can be designed to be completely opaque or printed with a pattern.

[0070] According to one embodiment, the second zone of the second printing area is at least partially designed as a pattern of individual elements. In this sense, the second zone along the second printing area or the second disk element is to be understood as a transition zone between the associated first and third zones.

[0071] The second zone of the second printing area can be printed with a pattern of individual elements in such a way that, for example, optical diffraction in connection with the first printing area of ​​the first disc element can be eliminated.

[0072] In this way, an optical effect of the first disk element can be compensated for by a corresponding optical effect of the second disk element.

[0073] According to a further embodiment, the first zone and / or the second zone of the first pressure area and / or the second pressure area is designed to be at least partially identical to the respective associated third zone.

[0074] Any suitable variation of printed and unprinted areas or zones can be applied. In particular, individual zones can also merge into one another and are not strictly geometrically distinct. In this sense, the first and second zones, in particular, can be considered at least partially integrated or identical.

[0075] For example, the third zone of the second printing area can be designed to be identical to the corresponding third zone, meaning it is not printed and therefore transparent.

[0076] Furthermore, for example, the second zone of the first print area may be partially unprinted, just like the corresponding first zone.

[0077] According to another embodiment, the pattern consisting of individual elements of the first zone and / or the second zone of the second printing area can be a gradient pattern.

[0078] A gradient pattern can be understood, in particular, as one in which the characteristics of the printed pattern change across the printed area. This can include variations in the size of the individual elements, their spacing, their shape, their color, or a similar characteristic along the relevant printed area.

[0079] In this sense, the pattern of individual elements can change or vary along the surface of the first and / or second zone of the second printing area.

[0080] Furthermore, such a gradient pattern can generally be provided for any zone of the first and / or second pressure range.

[0081] In one embodiment, it is provided that the first and second zones of the first and second printing area are at least partially designed in the form of a black print.

[0082] In this sense, it is possible to design the first and second zones individually and in such a way as to use black printing that effects such as refractive power in the optical system of the vehicle windshield can be compensated for. The vehicle windshield preferably exhibits no or virtually no optical effect, e.g., in the form of refractive power.

[0083] Furthermore, the black print can be used as a filter for the purpose of creating a distortion-free design of the vehicle window.

[0084] According to one embodiment, the first printing area and the second printing area can each be designed as a screen print.

[0085] The screen printing process thus enables cost-effective reproduction of the first and second printing areas for the mass production of vehicle windows according to the invention.

[0086] Furthermore, during a screen printing process, it may be possible to apply other functional layers alongside or instead of a black print along one of the surfaces of the vehicle window. In this way, at least one of the window surfaces can be coated with elements for implementing, for example, a heating or antenna function, or some other functional feature.

[0087] For example, an infrared-reflecting coating or an electrically conductive coating can be used to implement a window, camera, or sensor heating system. A coating to reduce heat radiation, a so-called "low-emissivity" coating, is also possible, as is any other functionally appropriate coating. In particular, such functionalizing coatings can be arranged on the third or fourth window surface, preferably on the third. A "low-emissivity" coating is preferably arranged on the fourth window surface.

[0088] In one embodiment, the individual elements, for a printed pattern of individual elements, have the geometric shape of a circle, a rectangle, a square, a rhombus, a hexagon, an octahedron or the like.

[0089] The design with a pattern of individual elements describes in particular the printing with a large number of elements that can preferably be designed arbitrarily or as required.

[0090] In a subordinate aspect of the invention, a vehicle is provided, in particular a motor vehicle, preferably a passenger car or truck, a bus, a train or a ship, with a vehicle window according to one of the preceding claims.

[0091] Therefore, the vehicle windscreen according to the invention can be advantageously used in vehicles. In conjunction with optical sensors, improved measurement accuracy can be achieved using the vehicle windscreen according to the invention.

[0092] In a further, subordinate aspect, a method for manufacturing a vehicle windscreen or a vehicle according to the invention with a vehicle windscreen is provided, wherein at least one of the second zones of the first and / or second pressure area is designed as a transition area between the first zone and the third zone such that at least one optical effect of the first pressure area is compensated by an optical effect of the second pressure area.

[0093] During the manufacturing process of a vehicle windshield according to the invention, the bending behavior depends on the heat absorption of the windshield. The heat absorption can be adjusted or configured by means of the printing or black printing on local areas of the windshield elements. In particular, the density or intensity of the printing on individual elements, the shape of the individual elements, the design as a completely printed surface, or similar features can be varied to create a specifically, individually designed surface section.

[0094] Thus, by means of a specific, individual design of a printed area, the bending behavior of a vehicle window, particularly in specific local areas, can be influenced. Therefore, optical effects and properties of the resulting vehicle window, such as distortions, especially the refractive power of the window, can also be essentially configured based on the design of the first and second printed areas.

[0095] Furthermore, in accordance with the inventive method, it is provided that all embodiments of a vehicle disc or a vehicle according to the invention, as explained above, can be expediently implemented or provided within the framework of the inventive manufacturing method.

[0096] Thus, a completely or almost completely distortion-free vehicle windscreen can be provided using the method according to the invention.

[0097] The invention is explained below with reference to the attached figures.

[0098] This schematically illustrates: Fig. 1: An overview of a vehicle windscreen with a first and a second screen element; Fig. 2: An overview of the zone division of the first pressure area along the second screen surface of the first screen element; Fig. 3: An overview of the field of view of the optical sensor along the first and second pressure areas; Figs. 3a-3d: Various embodiments for the configuration of the first pressure area along the first screen element; Figs. 4a-4: Various embodiments for the configuration of the second pressure area along the second screen element.

[0099] The Fig. 1 shows an overview of a vehicle windscreen 10 with a first and a second windscreen element 11; 12.

[0100] The first and second disc elements 11; 12 are preferably arranged on top of each other in a planar arrangement. In particular, the disc elements can be laminated according to conventional manufacturing processes for vehicle windows. Thus, a lamination layer is preferably provided between the first and second disc elements 11; 12, which is Fig. 1 not shown.

[0101] The first disc element 11 has a first and a second disc surface 11.1; 11.2. The first disc surface 11.1 is preferably an outwardly facing disc surface, while the second disc surface of the first disc element 11 is preferably oriented opposite the lamination layer. In this sense, the first disc element 11 represents the outer part of the vehicle disc 10.

[0102] The second disk element 12 provides a third and a fourth disk surface 12.3; 12.4. The third disk surface 12.3 is preferably the one in Fig. 1 opposite the lamination layer not shown. Thus, the second disk surface 11.2 of the first disk element 11 and the third disk surface 12.3 of the second disk element 12 are arranged next to each other.

[0103] The fourth disk surface 12.4 of the second disk element 12 is preferably a disk surface directed inwards, i.e. into the interior of a vehicle.

[0104] A first pressure area 14 is provided along the second disk surface 11.2, and a second pressure area 15 is arranged along the fourth disk surface 12.4. The pressure areas 14 and 15 refer in particular to those surface sections of the disk elements 11 and 12 or disk surfaces 11.2 and 12.4 in which at least one sensor, in particular an optical sensor, is arranged.

[0105] Alternatively, a print area, as in Fig. 1 for the first pressure area 14, referring to a surface section of the disc elements 11; 12, which is relevant e.g. for a vehicle driver.

[0106] For the purposes of the exemplary explanation of the present invention with regard to the use of a sensor or a sensor arrangement, the first pressure range 14 refers to Fig. 1 primarily on an area centrally located along the upper side edge of the second disk surface 11.2. A second pressure area 15 refers in particular to a surface area arranged centrally along the upper side edge of the fourth disk surface 12.4.

[0107] Considering the application of the present invention with regard to a vehicle driver, the first pressure area 14 can be located after Fig. 1 alternatively, refer to the entire second disk surface 11.2, whereby the second pressure area 15 refers to an entire fourth disk surface 12.4.

[0108] According to Fig. 1 The first and second printing areas 14; 15 have both transparent and opaque areas or zones coated or printed with black ink. Therefore, it is provided that the at least one optical sensor is positioned substantially along a transparent part of the printing areas 14; 15 or performs an optical measurement through transparent sections of the printing areas 14; 15.

[0109] The first and second printing areas 14; 15 are after Fig. 1 Each is designed with two transparent areas for coupling sensors. The transparent areas are cylindrical or square in shape along the pressure areas 14 and 15.

[0110] In particular, the transparent areas or zones along the first and second printing areas 14; 15 are essentially designed in the same shape.

[0111] The transparent areas along the first printing area 14 can have larger dimensions than the transparent areas along the second printing area 15. Thus, the outwardly directed first printing area 14 can provide an adequate transparent area for a fan-shaped or conical beam path, for example for a sensor arrangement, as well as suitable protection against sunlight.

[0112] Furthermore, it is conceivable that the following Fig. 1 The transparent areas shown are designed as semi-transparent surfaces or the like. This can be the case, in particular, when using infrared sensors or other sensors that operate with electromagnetic radiation in the non-visible wavelength range.

[0113] The in Fig. 1 The transparent sections of the first and second pressure areas 14; 15 shown illustrate in this sense in particular the coupling areas of two sensors along the fourth disk surface 12.4 and along the second disk element 12.

[0114] In Fig. 2 An overview of a zone division of the first pressure area 14 along the second disk surface 11.2 of the first disk element 11 is illustrated.

[0115] After Fig. 2 The printing areas 14 and 15 each have a first zone 14.1 and 15.1, two second zones 14.2 and 15.2, and two third zones 14.3 and 15.3. Each of these zones has different optical properties.

[0116] The third zone 14.3; 15.3 describes the surface sections along which at least one optical sensor or the sensor arrangement is coupled to the fourth disk surface 12.4.

[0117] The first zone 14.1; 15.1 describes the surface areas surrounding the sensor arrangement, which according to Fig. 1 are designed as black print.

[0118] Such a black print in the first zone 14.1 of the first print area 14 can serve as a visual barrier as well as protection against external electromagnetic radiation. This can, for example, prevent aging effects due to sunlight and the like.

[0119] According to Fig. 2 Furthermore, two second zones 14.2; 15.2 are formed along the first and second pressure areas 14; 15, respectively. Accordingly, the second zone 14.2; 15.2 completely surrounds or frames the third zone 14.3; 15.3.

[0120] In this sense, the second zone 14.2; 15.2 represents a transition zone between the first zone 14.1; 15.1 and the associated third zone 14.3; 15.3 of the respective pressure range 14; 15.

[0121] In Fig. 3 An overview of the viewing area 16 of the optical sensor along the first printing area 14 is shown, in particular with a commonly used screen printing process.

[0122] In accordance with the present invention, the field of view 16 of a sensor can describe the area of ​​a vehicle windshield that can influence the preferably optical measurement. Alternatively, the field of view 16 can describe that area of ​​a vehicle windshield 10 that can influence the optical conditions for, for example, a vehicle driver.

[0123] In Fig. 3 A viewing area 16 of a sensor is shown in the form of pressure areas 14; 15. An area drawn in a square shape with dashed lines is subsequently described in the Fig. 3a bis 3d and 4a bis 4e Regarding the design of print areas 14; 15, examples were used.

[0124] An adaptation or preferably individual adjustment of the optical properties of the vehicle window 10 is particularly relevant along the field of vision 16. It is therefore provided that the printing areas 14; 15 are each at least partially or completely printed with a black print that can be individually designed.

[0125] Contrary to the Fig. 3 The field of view 16 can also be defined by a different geometric shape, e.g., circular or hexagonal. The design of the relevant field of view can depend on the shape of the vehicle windshield, the type of coupled sensor, the environmental conditions acting on the vehicle windshield, or similar factors.

[0126] Furthermore, the optical properties of the viewing area 16 are determined by the combination of the appropriate, specific designs of the first and second printing areas 14; 15.

[0127] In the Figuren 3a bis 3d Various embodiments for the design of the first pressure area 14 along the first disk element 11 are shown.

[0128] After Fig. 3a The first zone 14.1 of the first disc element 11 is designed to be continuously printed in black, while the third zone 14.3 is transparent, i.e., not printed.

[0129] The second zone 14.2 surrounds the third zone 14.3 according to Fig. 3a Complete, so that the second zone 14.2 forms a frame. Thus, the second zone 14.2 represents a transition area between the first and the third zones 14.1; 14.3.

[0130] The second zone is after Fig. 3a printed with a pattern of individual elements. Preferably, the individual elements are printed in black. The individual elements are square in shape. The pattern is according to Fig. 3a formed as a uniform, continuously developed pattern of square individual elements.

[0131] After Fig. 3b The second zone, 14.2, is only partially printed with a pattern of individual elements. The remaining part of the second zone, 14.2, is designed identically to the first zone, 14.1.

[0132] Thus, the exemplary embodiment can be according to Fig. 3b can be interpreted in such a way that the second zone 14.2 is partially self-contained and is only partially integrated into the first zone 14.1.

[0133] The second zone 14.2 is designed as a pattern of individual elements at a pointed side end and a flat side end of the truncated cylindrical third zone 14.3.

[0134] The third zone 14.3 may, in addition to a truncated cylindrical geometry, also have a different design form. The truncated cylindrical geometry of the third zones 14.3; 15.3 is in accordance with the Figuren 3a bis 3d as well as the Figuren 4a bis 4e This is to be understood merely as an exemplary design.

[0135] The individual elements of the pattern of the second zone 14.2 indicate that Fig. 3b a circular geometry.

[0136] In summary, the second zone 14.2 of the first printing area 14 can be designed in terms of its printing and geometric extent as required and appropriately.

[0137] In this sense, the second zone 14.2 can only be designed as a local, isolated area to provide a transition zone between the first zone and the third zone 14.3. The same can apply, if necessary, to zones 15.1, 15.2, and 15.3 of the second pressure area 15.

[0138] In Fig. 3c The second zone 14.2 is provided along a flat side end of the truncated cylindrical third zone 14.3. In particular, the second zone 14.2 is designed sectionally as a pattern of individual elements in the form of unprinted areas and is partially integrated into the first zone 14.1.

[0139] In Fig. 3d A first zone 14.1 is provided as a pattern of printed individual elements, whereby the second zone 14.2 can be understood as integrated into the first zone 14.1. In this sense, the second zone 14.2 is intended to be fully integrated into the first zone 14.1.

[0140] The first and second zones 14.1; 14.2 completely surround the truncated cylindrical third zone 14.3.

[0141] In the Figuren 4a bis 4e Various embodiments for the design of the second pressure area 15 along the second disk element 12 are shown.

[0142] Regarding the configurations of the first, second and third zones 15.1; 15.2; 15.3 of the second printing area 15, the same options are applicable as already explained above for the first printing area 14.

[0143] After Fig. 4a The first zone 15.1 is designed as a continuous black print, while the third zone 15.3 is not printed and is therefore transparent.

[0144] The second zone 15.2 can be considered integrated into the first zone 15.1.

[0145] In general, the second zones 14.2; 15.2 according to the present invention can each be configured identically to or integrated into the first zones 14.1; 15.1 as required. In such a case, a transition zone as the second zone 14.2; 15.2 forms between the first and third zones 14.1; 14.3; 15.1; 15.3 according to the present invention, in particular directly along the boundary to the transparent third zone 14.3; 15.3.

[0146] An individual and appropriate design of the first and second pressure area 14; 15 with first, second and third zones 14.1; 14.2; 14.3; 15.1; 15.2; 15.3 is provided in order to provide a suitable combination of disk elements 11; 12 for compensating optical effects, in particular in a viewing area 16 of an optical sensor.

[0147] After Fig. 4b The first zone is printed with a pattern of individual elements, where the individual elements have a circular shape.

[0148] The second zone 15.2 is shown integrated within the first zone 15.1.

[0149] In Fig. 4c The second zone 15.2 is also intended to be integrated into the first zone 15.1.

[0150] The first zone 15.1 is designed as a pattern of individual elements, with the individual elements having a hexagonal shape.

[0151] After Fig. 4c The first zone, 15.1, is designed with a gradient pattern.

[0152] The gradient pattern is formed by varying sizes of the hexagonal elements. In particular, the size of the hexagonal elements varies along the gradient from the flat, truncated cylindrical end of the third zone 15.3 towards the tapered end of the truncated cylindrical third zone 15.3.

[0153] Instead of a simple, uniformly designed pattern of individual elements, a gradient pattern can always be provided in accordance with the present invention, wherein the size of the individual elements, the shape of the pattern, distances between the individual elements or comparable features of the printing can change.

[0154] In Fig. 4d The first zone 15.1 of the second printing area 15 is identical to the third zone 15.3, which is designed to be unprinted or transparent.

[0155] The second zone 15.2 completely surrounds the third zone 15.3. The second zone 15.2 is formed with a continuous gradient pattern of square individual elements.

[0156] The gradient pattern is specifically designed such that rows of individual elements are spread out along the rounded edges of the third zone 15.3. Thus, along the rounded corners of the third zone 15.3, there is a lower density of individual elements within the second zone 15.2.

[0157] After Fig. 4e The first zone, 15.1, is printed or designed with a uniform pattern of circular individual elements.

[0158] The second zone 15.2 is provided as a gradient pattern of individual elements along the flat side end of the truncated cylindrical third zone 15.3.

[0159] The individual elements essentially have a circular geometry, with some elements overlapping. This results in a partially serpentine pattern.

[0160] Apart from the blunt or flat side end of the third zone 15.3, the second zone 15.2 is integrated into the first zone 15.1 or designed identically to it. Thus, the second zone 15.2 stands out according to Fig. 4e only at the blunt or flat side end, standing alone from the third zone 15.3.

[0161] The third zones 14.3; 15.3 are always delimited or designed as a transparent section of the first or second pressure area 14; 15, so that a driver, an optical sensor or the like can see through the transparent third area 15.3.

[0162] In general, by arranging the first and second disk elements 11; 12, a combination of specifically designed first and second pressure areas 14; 15 can be provided to compensate for optical effects or properties of individual disk elements 11; 12.

[0163] In particular, the second zone 14.2; 15.2 can be designed as a transition area between the first and third zones 14.1; 14.3; 15.1; 15.3 if required.

[0164] In this way, a vehicle windscreen 10 can be provided which has advantageous optical properties for use with at least one sensor or sensor arrangement. Bezugszeichenliste

[0165] 10 Vehicle windshield 11 First windshield element 11.1 First windshield surface 11.2 Second windshield surface 12 Second windshield element 12.3 Third windshield surface 12.4 Fourth windshield surface 14 First pressure area 14.1 First zone (of the first pressure area) 14.2 Second zone (of the first pressure area) 14.3 Third zone (of the first pressure area) 15 Second pressure area 15.1 First zone (of the second pressure area) 15.2 Second zone (of the second pressure area) 15.3 Third zone (of the second pressure area) 16 Viewing area

Claims

1. Vehicle pane (10), in particular for a motor vehicle, a bus, a train, or a ship, having at least a first pane element (11) and a second pane element (12) that are joined to one another surface-to-surface such that the vehicle pane (10) has a first pane face (11.1), a second pane face (11.2), a third pane face (12.3), and a fourth pane face (12.4), wherein the second pane face (11.2) has a first printed region (14) and the third or fourth pane face (12.3; 12.4) has a second printed region (15) for forming a viewing region (16) along the vehicle pane (10), wherein the first and second printed region (14; 15) are each designed with at least a first, second, and third zone (14.1; 14.2; 14.3; 15.1; 15.2; 15.3), wherein at least one of the first and / or second zones (14.1; 14.2; 15.1; 15.2) is at least partially printed and the third zones (14.3; 15.3) are, in all cases, not printed, wherein the second zones (14.2; 15.2) are in each case implemented as a transition region between the first zone (14.1; 15.1) and the third zone (14.3; 15.3) such that at least one optical effect of the first printed region (14) can be compensated by an optical effect of the second printed region (15).

2. Vehicle pane (10) according to claim 1, characterized in that a refractive power as an optical property of the first pane element (11) in the first printed region (14) can be compensated by a refractive power as an optical property of the second pane element (12) in the second printed region (15).

3. Vehicle pane (10) according to claim 1 or 2, characterized in that the first zone (14.1) of the first printed region (14) is printed continuously or with a pattern of individual elements.

4. Vehicle pane (10) according to one of the preceding claims, characterized in that the second zone (14.2) of the first printed region (14) is designed at least partially as a pattern of printed individual elements.

5. Vehicle pane (10) according to one of the preceding claims, characterized in that the first zone (15.1) of the second printed region (15) is printed continuously or with a pattern of individual elements or is not printed.

6. Vehicle pane (10) according to one of the preceding claims, characterized in that the second zone (15.2) of the second printed region (14) is designed at least partially as a pattern of individual elements.

7. Vehicle pane (10) according to one of the preceding claims, characterized in that the first zone (14.1; 15.1) and / or the second zone (14.2; 15.2) of the first printed region (14) and / or of the second printed region (15) are designed at least partially identical to the respective associated third zone (14.3; 15.3).

8. Vehicle pane (10) according to one of the preceding claims, characterized in that the pattern of individual elements of the first zone (15.1) and / or of the second zone (15.2) of the second printed region (15) is a gradient pattern.

9. Vehicle pane (10) according to one of the preceding claims, characterized in that the first and second zones (14.1; 14.2; 15.1; 15.2) of the first and second printed region (14; 15) are implemented in the form of a black print.

10. Vehicle pane (10) according to one of the preceding claims, characterized in that the first printed region (14) and the second printed region (15) can be designed in each case as a screen print.

11. Vehicle pane (10) according to one of the preceding claims, characterized in that the individual elements for a printed pattern made up of individual elements have the geometric shape of a circle, a rectangle, a square, a rhombus, a hexagon, an octahedron, or the like.

12. Vehicle, in particular a motor vehicle, preferably a passenger car or a truck, bus, train, or ship, having a vehicle pane (10) according to one of the preceding claims.

13. Method for producing a vehicle pane (10) or a vehicle having a vehicle pane (10) according to one of the preceding claims, wherein at least one of the second zones (14.2; 15.2) of the first and / or second printed region (14; 15) is implemented as a transition region between the first zone (14.1; 15.1) and the third zone (14.3; 15.3) such that at least one optical effect of the first printed region (14) is compensated by an optical effect of the second printed region (15).