Masking for a plurality of sensors, a method for manufacturing the same, and use thereof

Abstract

The present disclosure relates to a grading 10 for a plurality of sensors, comprising a glass sheet 1, a conductive coating 2 on a part of the surface of the glass sheet 1, first and second bus bars 3a, 3b for supplying a voltage to the conductive coating 2, a transmissive region 4 disposed between the first bus bar 3a and a part of the conductive coating 2, a plurality of auxiliary bus bars 5a, 5b, 5c at the edge of the transmissive region 4 and in electrical contact with the conductive coating 2, at least one supply line 6a, 6b, 6c configured in the transmissive region 4 to connect at least one of the auxiliary bus bars 5a, 5b, 5c to the first bus bar 3a, and a lower auxiliary bus bar 5a among the plurality of auxiliary bus bars 5a, 5b, 5c configured at the lower edge of the transmissive region 4. The transmissive region 4 has an asymmetric shape including a virtual symmetric region and a protrusion 4a protruding from a part of the side edge of the virtual symmetric region. At least one of the plurality of auxiliary bus bars 5a, 5b, 5c, i.e., the side auxiliary bus bars 5b, 5c, is configured on a part of the side edge of the virtual symmetric region below the protrusion 4a, providing the grading 10 for a plurality of sensors.

Description

Technical Field

[0001] The present invention relates to a glazing for a plurality of sensors, a method for manufacturing the same, and its use, for example, as a window of a vehicle.

Background Art

[0002] Glazings for a plurality of sensors are known to comprise a glass sheet and a conductive coating for heating, defogging, or defrosting the glazing. The conductive coating is impermeable to electromagnetic radiation used by the sensors. The glazing also has a transmissive region through which electromagnetic radiation of a wavelength suitable for each sensor can pass. The sensors are arranged aligned with the transmissive region.

[0003] U.S. Patent Application Publication No. 20130213949 (Lisinski) describes a windshield having a heatable coating and two first electrodes (bus bars) for distributing current. The windshield has a region without a coating that enables wireless data traffic for sensors. The second electrode has a supply portion connected to the bus bar, a ring-shaped portion in the region without a coating, and a connection portion protruding like the teeth of a comb with respect to the coating. The second electrode has an electrical resistance corresponding to the electrical resistance of the conductive coating with a surface area the same size as the region without a coating. The current density is said to be substantially uniform, and hot spots are avoided.

[0004] Alternative glazings for a plurality of sensors are still needed to achieve a predetermined heating distribution and enable data traffic for the sensors.

[0005] (Object of the Invention) A first object of the present invention is to provide a glazing for a plurality of sensors having a conductive coating and a transmissive region for a plurality of sensors. A second object is to provide a method for manufacturing the glazing. A third object is to use the glazing as a window.

SUMMARY OF THE INVENTION

[0006] In a first aspect, the present invention provides a grading for a plurality of sensors, comprising the features of claim 1.

[0007] The present invention is a grading for a plurality of sensors, comprising a glass sheet, a conductive coating on a part of the surface of the glass sheet, first and second bus bars for supplying a voltage to the conductive coating, a transmissive region disposed between the first bus bar and a part of the conductive coating, a plurality of auxiliary bus bars at the edge of the transmissive region and in electrical contact with the conductive coating, and at least one supply line disposed at least partially in the transmissive region and connecting at least one auxiliary bus bar and the first bus bar. The lower auxiliary bus bar is formed at the lower edge of the transmissive region, the transmissive region has an asymmetric shape with a virtual symmetric region and a protrusion protruding from a part of the side edge of the virtual symmetric region, and at least one lateral auxiliary bus bar is formed at a part of the side edge of the virtual symmetric region below the protrusion, thereby providing a grading for a plurality of sensors.

[0008] Advantageously, a grading having an asymmetrically shaped transmissive region provides a surprisingly uniform heat distribution by the protrusion and the lateral auxiliary bus bar below the protrusion.

[0009] In the prior art, it has been disclosed that a plurality of sensors each having a symmetric uncoated region have a non-uniform heat distribution. The inventors have observed that in an asymmetric uncoated region having a lateral protrusion, the heat distribution becomes even more non-uniform.

[0010] The present invention surprisingly discloses that the lateral auxiliary bus bar below the protrusion provides a uniform heat distribution. Unexpectedly, the present invention configures the lateral auxiliary bus bar at a position away from the protrusion that causes non-uniform heat distribution, rather than at the same height.

[0011] Surprisingly, the method of manufacturing a glazing with a lateral auxiliary busbar at the side edge below the protrusion is simpler than the prior art.

[0012] As a result of the present invention, this glazing meets the industrial test requirements regarding defogging and defrosting of vehicle windows having a plurality of sensors. The present invention meets the requirements of the vehicle front windshield of a camera system enabling a vehicle equipped with an autonomous driving vehicle or an advanced driver assistance system.

[0013] Preferably, the protrusion partially forms the upper edge portion of the transmissive region adjacent to the first busbar.

[0014] Preferably, the protrusion has a rectangular shape, and its major axis is parallel to the first busbar.

[0015] Preferably, the protrusion comprises a grid of removal lines.

[0016] Preferably, at least one auxiliary busbar has a rectangular shape and a major axis that is substantially perpendicular to the major axis of the protrusion.

[0017] Preferably, at least two lateral auxiliary busbars are located at a part of the side edge of the virtual symmetric region. Advantageously, none of the plurality of auxiliary busbars overlap with the protrusion.

[0018] Preferably, the glazing comprises at least three auxiliary busbars.

[0019] Preferably, at least one interconnect supply line connects any two auxiliary busbars.

[0020] Preferably, the glazing comprises at least two interconnected supply lines.

[0021] Preferably, the glazing further comprises a printing area that obscures the first bus bar and forms a frame-shaped circumferential masking strip extending from the first bus bar to at least the edge of the transmissive area.

[0022] Preferably, the glazing comprises a coated printed portion of the printing area covered by a part of the conductive coating adjacent to the edge of the transmissive area.

[0023] Preferably, the glazing comprises at least one hole for a sensor in the printing area.

[0024] Preferably, the glass sheet is adhered to another glass sheet by a ply of an intermediate layer material to form a laminated glass, and one of the glass sheets is an inner glass sheet facing a plurality of sensors.

[0025] Preferably, the power density of the conductive coating between the first bus bar and the second bus bar is in the range of 100 to 3,000 W / m 2 and more preferably in the range of 200 to 1,000 W / m 2 and most preferably in the range of 300 to 600 W / m 2 is in the range.

[0026] Preferably, the resistance of at least one supply line, the resistance of at least one interconnected supply line, the sheet resistance of the conductive coating, the positions of the first and second bus bars, and the position of the auxiliary bus bar are configured such that when a voltage of 14 volts is applied to the first and second bus bars, a voltage drop in the range of 0.8 to 3.3 volts occurs between the first bus bar and each auxiliary bus bar. When the applied voltage is 48 volts, the range of the voltage drop is 2.7 to 11.3 volts. For other applied voltages, the range of the voltage drop is in the same ratio.

[0027] In a second aspect, the present invention provides a method for manufacturing glazing, comprising the steps of: providing a glass sheet; depositing a conductive coating on a surface of the glass sheet; forming first and second busbars for supplying a voltage onto the conductive coating; disposing a transmissive region of the glass sheet between the first busbar and a part of the conductive coating; forming a plurality of auxiliary busbars that are at an edge of the transmissive region and in electrical contact with the conductive coating; forming at least one supply line connecting at least one auxiliary busbar and the first busbar 3a within the transmissive region; forming a lower auxiliary busbar among the plurality of auxiliary busbars at a lower edge of the transmissive region 4; and configuring the transmissive region to have an asymmetric shape with a virtual symmetric region and a protrusion protruding from a part of a side edge of the virtual symmetric region, wherein at least one lateral auxiliary busbar is formed at a part of the side edge of the virtual symmetric region of the lower edge rather than at the protrusion 4a.

[0028] Preferably, before the step of depositing the conductive coating, the method further comprises the step of obscuring at least the first busbar and forming a printed region that forms a frame-shaped circumferential masking strip extending from the first busbar to at least an edge of the transmissive region. Optionally, the glazing comprises a coated printed portion of the printed region covered by a part of the conductive coating adjacent to the edge of the transmissive region.

[0029] Preferably, the method further comprises the step of bonding the glass sheet to another glass sheet by means of an intermediate layer material ply to form a laminated glass, wherein one of the glass sheets is an inner glass sheet facing a plurality of sensors.

[0030] In a third aspect, the present invention provides the use of the glazing according to claim 1 as a front windshield, rear window, side window, or roof window of a motor vehicle for a sensor system for implementing an autonomous vehicle or a vehicle equipped with an advanced driver assistance system.

[0031] The present invention is disclosed by drawings and embodiments that do not limit the invention.

Brief Description of the Drawings

[0032]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0033] FIG. 1 discloses a glazing 10 for a plurality of sensors according to the present invention, comprising a glass sheet 1 and a conductive coating 2 deposited on a major part of the glass sheet 1. The boundary of the coated area 2 is indicated by a broken line.

[0034] The peripheral region of the glass sheet 1 is masked during the deposition of the conductive coating 2 or during the edge removal of the conductive coating 2 in the peripheral region, so that no coating is applied. The uncoated peripheral region helps to electrically insulate the edge of the glazing 10 and also helps to avoid chemical corrosion of the conductive coating 2 due to water ingress.

[0035] The conductive coating 2 is usually transparent. The conductive coating 2 comprises two, three or four layers of silver or a layer of a transparent conductive oxide (TCO) such as tin oxide, fluorine-doped tin oxide or indium tin oxide. The sheet resistance of the conductive coating 2 on the glass sheet 1 is usually in the range of 0.1 to 10 ohms per square, preferably 0.5 to 5 ohms per square, more preferably 0.7 to 1.5 ohms per square. The conductive coating 2 comprises three layers of silver and has a thickness in the range of 237 to 277 nanometers.

[0036] The first and second busbars 3a, 3b are preferably configured to supply voltage by contacting the conductive coating 2 at the upper and lower edges respectively. The first and second busbars 3a, 3b can be printed on the glass sheet 1 by silk screen printing or inkjet printing of conductive ink. The conductive ink contains glass frit mixed with conductive particles, which are usually silver. The glazing 10 with the ink printed thereon is fired at a high temperature to form a conductive enamel and then cooled. Alternatively, the first and second busbars 3a, 3b can be strips of a conductive material, usually copper. The first and second busbars 3a, 3b can be of any shape with low resistance so that substantially the same voltage can be supplied along their length to make the heat distribution in the conductive coating 2 uniform, and can preferably be rectangular. The edges of the first and second busbars 3a, 3b extend to the uncoated peripheral region to avoid hot spots at the edges of the conductive coating 2.

[0037] The transmissive region 4 is disposed between the first bus bar 3a and a part of the conductive coating 2. The transmissive region 4 can be masked during the deposition of the conductive coating 2 to obtain a transmissive region 4 without the coating. Alternatively, or in addition, by removing the conductive coating 2, a transmissive region 4 without the coating or partially without the coating can be provided. The removal of the coating can be performed by any process, preferably mechanical polishing or laser ablation. The transmissive region 4 enables electromagnetic radiation of a predetermined wavelength to pass through the glazing 10 and enables data communication of a plurality of sensors. The transmissive region 4 has a grid pattern with a pitch suitable for electromagnetic radiation of a predetermined wavelength and is configured as a protrusion 4a as required. The protrusion 4a can protrude from a part of the side edge of the virtual symmetric region so that the transmissive region 4 is asymmetric. The virtual symmetric region can have any symmetric shape including a U-shape, a semi-elliptical shape, a semi-circular shape, a triangular shape, or a rectangular shape. The protrusion 4a has any shape including a rectangular shape and partially forms the upper edge portion of the transmissive region adjacent to the first bus bar 3a.

[0038] In FIG. 1, two auxiliary bus bars 5a, 5b are at the edge of the transmissive region 4 and are configured to be in electrical contact with the conductive coating 2. The lower auxiliary bus bar 5a is configured at the lower edge of the transmissive region 4. Preferably, the lower auxiliary bus bar 5a is configured to include the lowest point of the transmissive region 4.

[0039] In FIG. 1, two supply lines 6a, 6b are configured within the transmissive region 4 and connect the two auxiliary bus bars 5a, 5b to the first bus bar 3a respectively. The electrical resistance of the supply lines 6a, 6b, the sheet resistance of the conductive coating 2, the positions of the first and second bus bars 3a, 3b, and the positions of the auxiliary bus bars 5a, 5b are configured such that a voltage of 14 volts applied to the first and second bus bars 3a, 3b causes a predetermined voltage drop between the first bus bar 3a and each of the auxiliary bus bars 5a, 5b. The predetermined voltage drop ranges from 0.8 to 3.3 volts, preferably from 0.9 to 3.13 volts.

[0040] The conductive coating 2 has an arbitrary heating surface area in the range of 0.56 to 1.56 m 2 , preferably 0.76 to 1.36 m 2 , more preferably 0.86 to 1.16 m 2 and may have.

[0041] The conductive coating 2 has an arbitrary power density, such as in the range of 281 to 354 W / m 2 , preferably 291 to 344 W / m 2 , more preferably 301 to 334 W / m 2 and may have.

[0042] Figure 2 is a cross-sectional view taken along line A-A of Figure 1. In this embodiment, the glass sheet 1 is an outer glass sheet adhered to the inner glass sheet 12 by the ply of the interlayer material 11. Alternatively, the glazing 10 may be configured such that the glass sheet 1 having the conductive coating 2 is the inner glass sheet. The glass sheets 1 and 12 are preferably soda-lime silica glass manufactured by the float process. The thickness of the glass is preferably in the range of 2 to 12 mm. The glass sheets 1 and 12 can be tempered glass having a surface stress exceeding 65 MPa, heat-strengthened glass having a surface stress in the range of 40 to 55 MPa, semi-strengthened glass having a surface stress in the range of 20 to 25 MPa, or annealed glass. The interlayer material 11 is an arbitrary thermoplastic resin, preferably polyvinyl butyral (PVB).

[0043] Figure 3 discloses an embodiment of the present invention similar to Figure 1, further comprising an interconnect supply line 6ac electrically connected between the lower auxiliary bus bar 5a and the side auxiliary bus bar 5c.

[0044] Figure 4 discloses an embodiment of the present invention similar to Figure 1, further comprising a second side auxiliary bus bar 5b configured between the lower auxiliary bus bar 5a and the side auxiliary bus bar 5c.

[0045] FIG. 5 discloses an embodiment of the present invention similar to FIG. 4, further comprising an interconnect supply line 6ab electrically connected between a lower auxiliary bus bar 5a and a second side auxiliary bus bar 5b.

[0046] FIG. 6 discloses an embodiment of the present invention similar to FIG. 5, further comprising a second interconnect supply line 6bc electrically connected between a second side auxiliary bus bar 5b and a side auxiliary bus bar 5c.

[0047] FIG. 7 discloses an embodiment of the present invention similar to FIG. 1, further comprising a printed area 7 forming a frame-shaped circumferential masking strip that obscures the first bus bar 3a and extends from the first bus bar 3a to at least the edge of the transmissive area 4. The boundary of the printed area 7 is shown by a solid line.

[0048] Preferably, a part of the printed area 7 extends beyond the edge of the transmissive area 4 and is covered by the conductive coating 2 to form a coated printed portion 8. The sheet resistance of the coated printed portion 8 is higher than the sheet resistance of the conductive coating 2 formed directly on the glass sheet 1. Usually, the sheet resistance of the coated printed portion 8 is at least twice the sheet resistance of the conductive coating 2 directly applied on the glass sheet 1. The sheet resistance of the coated printed portion 8 is usually in the range of 0.2 to 20 ohms per square, preferably 1.0 to 10 ohms per square, and more preferably 1.4 to 3.0 ohms per square.

[0049] The glazing 10 further comprises a hole 9 located in a part of the printed area 7 that masks the transmissive area 4. The hole 9 is for a sensor such as a camera for visible light or infrared wavelengths, and as a result, the sensor is not masked by the printed area 7.

[0050] The glazing 10 further comprises a display area. The display area can be of any shape. At least one virtual temperature test line 13 exists at a predetermined distance between the uppermost point and the lowermost point of the display area. Preferably, the temperature profile is controlled by three temperature test lines 13, namely, the lower quartile, the median line, and the upper quartile. Preferably, the display area is delimited by the printing area 7.

[0051] FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7. FIG. 8 discloses that the printing area 7 is printed on the inner surface S2 of the glass sheet 1 such that the printing area 7 is shown as the outer glass sheet of the laminated glass 10. Alternatively, the glass sheet 1 can be the inner glass sheet and the printing area 7 can be on the surface S3 of the laminated glass 10.

[0052] The printing area 7 can comprise a black enamel. The black enamel is preferably deposited as black ink on a selected area of the glass sheet 1 by screen printing. Next, the glass sheet 1 is fired at a predetermined temperature for a predetermined time to form the black enamel. Advantageously, the printing area 7 extends around the glazing 10 and masks an adhesive material such as polyurethane (PU) used to adhere the glazing 10 to a vehicle body or window frame (not shown).

[0053] FIG. 9 discloses an embodiment of the present invention similar to FIG. 7, further comprising an interconnect line 6ac electrically connected between the lower auxiliary busbar 5a and the side auxiliary busbar 5c. Advantageously, the interconnect line 6ac is configured to achieve a predetermined voltage drop between the first busbar 3a and each of the auxiliary busbars 5a, 5c and at the same time have a path around the hole 9 for heating, defogging, or defrosting the hole 9, thereby reducing hot spots in the temperature profile around the transmissive area 4.

[0054] FIG. 10 discloses an embodiment of the present invention similar to FIG. 9, further comprising a second side auxiliary bus bar 6b and two interconnecting supply lines 6ab, 6bc electrically connected between the lower side auxiliary bus bar 5a and the second side auxiliary bus bar 5b, and between the second side auxiliary bus bar 5b and the side auxiliary bus bar 5c. Advantageously, the embodiments of FIGS. 9 and 10 lack the supply line 6b shown in FIG. 7. The inventors have found that interconnecting the supply line 6ac (FIG. 9) or 6ab and 6bc (FIG. 10) provides an advantageous effect on the heating, defogging, or defrosting of the hole 9, while at the same time achieving a predetermined voltage drop between the first bus bar 3a and each of the auxiliary bus bars 5a, 5c, thereby reducing hot spots in the temperature profile line 13.

[0055] The protrusion 4a is advantageous for sensors such as cameras, RFID tags, or any electronic device that transmits and receives electromagnetic radiation such as visible light or radio frequencies. For example, the window of a vehicle enables data collection for toll collection or for an advanced driver assistance system (ADAS) that assists the driver in driving and parking functions. The sensor is attached to a bracket (not shown) aligned with the protrusion 4a, or directly to the surface S2 of the glass sheet 1, or to the inner surface S4 of the glazing 10. Advantageously, since the protrusion 4a is covered by the printed area 7, the sensor is masked in the visible part of the electromagnetic spectrum but enables data traffic at a predetermined wavelength of the radio frequency.

Examples

[0056] Table 1 shows the simulation results of three examples of the glazing 10 according to the present invention and one comparative example according to the prior art.

[0057] The virtual temperature profile line 13 was observed at the upper quartile of the display area of the glazing 10 and at the auxiliary bus bars 5a, 5b, 5c.

[0058] The comparative example has a lower auxiliary bus bar 5a but lacks the side auxiliary bus bars 5b and 5c formed on a part of the side edge of the virtual symmetric region configured below the protrusion 4a. In the lower auxiliary bus bar 5a, a hot spot occurred at an unacceptable temperature of 71.7 °C.

[0059] Example 1 according to the present invention further includes a side auxiliary bus bar 5b in addition to the lower auxiliary bus bar 5a. The side auxiliary bus bar 5b is spaced apart from the protrusion 4a and is located closer to the lower auxiliary bus bar 5a than the protrusion 4a. A warm spot occurred in the lower auxiliary bus bar 5a and reached 49.5 °C.

[0060] Example 2 according to the present invention further includes a side auxiliary bus bar 5c in addition to the lower auxiliary bus bar 5a. The side auxiliary bus bar 5c is formed on a part of the side edge of the virtual symmetric region, is below the protrusion 4a, and is arranged at a position as close as possible to the protrusion 4a. A warm spot occurred in the side auxiliary bus bar 5c and reached 59.8 °C.

[0061] Example 3 according to the present invention further includes two side auxiliary bus bars 5b and 5c in addition to the lower auxiliary bus bar 5a. The side auxiliary bus bar 5c is brought as close as possible to the protrusion 4a. The side auxiliary bus bar 5b is spaced apart from the protrusion 4a and is closer to the lower auxiliary bus bar 5a than the protrusion 4a. A warm spot occurred in the side auxiliary bus bar 5c and reached 49.9 °C.

[0062]

Table 1

[0063] The reference signs in the drawings are as follows.

Explanation of Signs

[0064] 1 Glass sheet 2 Conductive coating 3a Bus bar 3b Bus bar 4 Permeable region 4a Protrusion 5a Auxiliary bus bar 5b Auxiliary bus bar 5c Auxiliary bus bar 6a Supply line 6b Supply line 6c Supply line 6ab Interconnection supply line 6ac Interconnection supply line 6bc Interconnection supply line 7 Printing area 8 Coated printed portion of the printing area 9 Hole in the printing area 10 Glazing 11 Ply of the intermediate layer material 12 Another glass sheet 13 Temperature test line S1 Surface 1 S2 Surface 2 S3 Surface 3 S4 Surface 4

Claims

1. A glazing 10 for multiple sensors, Glass sheet 1 and A conductive coating 2 on a part of the surface of the glass sheet 1, First and second busbars 3a and 3b for supplying voltage to the conductive coating 2, A permeable region 4 is disposed between the first busbar 3a and a part of the conductive coating 2, A plurality of auxiliary busbars 5a, 5b, 5c are located at the edge of the transparent region 4 and are in electrical contact with the conductive coating 2, At least one auxiliary busbar 5a, 5b, 5c is connected to the first busbar 3a by at least one supply line 6a, 6b, 6c configured within the permeable region 4, The system includes a lower auxiliary busbar 5a among the plurality of auxiliary busbars 5a, 5b, and 5c configured at the lower edge of the transparent region 4, The transparent region 4 has an asymmetrical shape comprising a virtual symmetric region and a projection 4a that protrudes from a part of the side edge of the virtual symmetric region. Of the plurality of auxiliary busbars 5a, 5b, 5c, at least one lateral auxiliary busbar 5b, 5c is configured on a part of the side edge of the virtual symmetric region below the protrusion 4a. Glazing 10 for multiple sensors.

2. The glazing 10 according to claim 1, wherein the projection 4a partially forms the upper edge portion of the permeable region 4 adjacent to the first busbar 3a.

3. The glazing 10 according to claim 1 or 2, wherein the projection 4a has a rectangular shape and a major axis parallel to the first busbar 3a.

4. The glazing 10 according to claim 1 or 2, wherein the projection 4a is provided with a grid of removal lines.

5. The glazing 10 according to claim 1 or 2, wherein at least one auxiliary bus bar 5a, 5b, 5c has a rectangular shape and a major axis substantially perpendicular to the major axis of the projection 4a.

6. The glazing 10 according to claim 1 or 2, wherein none of the plurality of auxiliary busbars 5a, 5b, and 5c overlap with the protrusion.

7. The glazing 10 according to claim 1 or 2, comprising at least three auxiliary busbars 5a, 5b, 5c.

8. The glazing 10 according to claim 1 or 2, further comprising at least one interconnection supply line 6ab, 6ac, 6bc connecting any two auxiliary busbars 5a, 5b, 5c.

9. The glazing 10 according to claim 8, comprising at least two interconnection supply lines 6ab, 6ac, 6bc connecting any two auxiliary busbars 5a, 5b, 5c, respectively.

10. The glazing 10 according to claim 1 or 2, further comprising a printing area 7 that covers the first busbar 3a and forms a frame-shaped circumferential masking strip extending from the first busbar 3a to at least the edge of the transparent area 4.

11. The glazing 10 according to claim 10, further comprising a coated printed portion 8 of the printed area 7, which is covered by a portion of the conductive coating 2 adjacent to the edge of the transparent area 4.

12. The glazing 10 according to claim 11, wherein the sheet resistance of the coated printed portion 8 is less than or equal to twice the sheet resistance of the conductive coating 2 that is not on the printed area 7.

13. The glazing 10 according to claim 1 or 2, further comprising at least one sensor hole 9 in the printed area 7.

14. The glazing 10 according to claim 1 or 2, wherein the glass sheet 1 is bonded to another glass sheet by a ply of an intermediate layer material 11 to form a laminated glass, and one of the glass sheets is an inner glass sheet 12 facing the plurality of sensors.

15. The power density in the conductive coating 2 is 100 to 3,000 W / m². ２ More preferably 200 to 1,000 W / m ２ Most preferably 300 to 600 W / m ２ The glazing 10 according to claim 1 or 2, which is within the range of the specified area.

16. The glazing 10 according to claim 1 or 2, wherein the resistance of the at least one supply line 6a, 6b, 6c, the resistance of the at least one interconnection supply line 6ab, 6ac, 6bc, the sheet resistance of the conductive coating 2, the positions of the first and second busbars 3a, 3b, and the positions of the auxiliary busbars 5a, 5b, 5c are configured such that applying a voltage of 14 volts to the first and second busbars 3a, 3b results in a voltage drop between the first busbar 3a and each of the auxiliary busbars 5a, 5b, 5c in the range of 0.8 to 3.3 volts.

17. Steps include preparing glass sheet 1, The steps include depositing a conductive coating 2 on the surface of the glass sheet 1, The steps include forming first and second busbars 3a and 3b for supplying voltage onto the conductive coating 2, The steps include: placing the permeable region 4 of the glass sheet between the first busbar 3a and a part of the conductive coating 2; The steps include: configuring a plurality of auxiliary busbars 5a, 5b, 5c located at the edge of the transparent region 4 and in electrical contact with the conductive coating 2; The steps include configuring at least one supply line 6a, 6b, 6c within the permeable region 4, and connecting at least one auxiliary bus bar 5a, 5b, 5c to the first bus bar 3a, The step includes configuring a lower auxiliary busbar 5a at the lower edge of the permeable region 4, The step of configuring the transparent region 4 to have an asymmetrical shape comprising a virtual symmetric region and a protrusion 4a from a part of the side edge of the virtual symmetric region, The further step includes configuring at least one of the plurality of auxiliary busbars 5a, 5b, 5c to be below the protrusion 4a of the side edge of the virtual symmetric region. A method for manufacturing a glazing 10 for a plurality of sensors as described in claim 1.

18. A method for manufacturing a glazing 10 according to claim 17, wherein the step of depositing the conductive coating 2 is preceded by a step of obscuring at least the first busbar 3a and forming a printing area 7 that forms a frame-shaped circumferential masking strip extending at least from the first busbar 3a to the edge of the transparent area 4.

19. A method for manufacturing a glazing 10 according to claim 17, further comprising the step of bonding the glass sheet 1 to another glass sheet by a ply of an intermediate layer material 11 to form a laminated glass, wherein one of the glass sheets is an inner glass sheet 12 facing the plurality of sensors.

20. Use of the glazing 10 according to claim 1 as a windshield, rear window, side window, or roof window of an automobile for a sensor system to realize an autonomous vehicle or a vehicle equipped with an advanced driver assistance system.

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