Glass window for plurality of sensors, method for production thereof and use thereof

Abstract

A glazing (10) for a plurality of sensors, comprising a glass sheet (1), an electrically conductive coating (2) on a portion of a surface of the glass sheet (1), first and second busbars (3a, 3b) for providing an electrical voltage to the electrically conductive coating (2), a permeable region (4) arranged between the first busbar (3a) and the portion of the electrically conductive coating (2), a plurality of auxiliary busbars (5a, 5b, 5c) at an edge of the permeable region (4) and in electrical contact with the electrically conductive coating (2), at least one supply line (6a, 6b, 6c) connecting the at least one auxiliary bus bar (5a, 5b, 5c) to the first bus bar (3a) arranged in the transparent region (4), a lower auxiliary bus bar (5a) of the plurality of auxiliary bus bars (5a, 5b, 5c) being arranged at a lower edge of the transparent region (4), in which the transparent region (4) has an asymmetric shape including an imaginary symmetric region and a protrusion (4a) protruding from a portion of a side edge of the imaginary symmetric region, and at least one side auxiliary bus bar (5b, 5c) of the plurality of auxiliary bus bars (5a, 5b, 5c) is disposed at a portion of a side edge of the imaginary symmetric region lower than the protrusion (4a).

Description

Technical Field

[0001] The invention relates to a method for manufacturing a glazing for multiple sensors and its use, for example as a window for a vehicle. Background Art

[0002] Known glazings for multiple sensors include a glass sheet and a conductive coating for heating, defogging or defrosting the glazing. The conductive coating is opaque to the electromagnetic radiation used by the sensors. The glazing also includes a permeable region so that electromagnetic radiation of the appropriate wavelength for each sensor can pass. The sensors are aligned with the permeable region.

[0003] US20130213949A1 (Lisinski) describes a windshield with a heatable coating and two first electrodes (busbars) for distributing the current. The windshield has an uncoated area, enabling the sensor to perform radio data transmission. The second electrode has a supply connected to the busbar, an annular portion in the uncoated area and a connection protruding into the coating like a comb tooth. The resistance of the second electrode corresponds to the resistance that the conductive coating would have in a surface area of ​​the same size as the uncoated area. The current density is said to be almost uniform and hot spots are avoided.

[0004] There remains a need for alternative glazing for multiple sensors to achieve a predetermined heating profile and allow data transmission from the sensors.

[0005] Purpose of the invention

[0006] The first object of the present invention is to provide a glass window for multiple sensors, which has a conductive coating and a permeable area for multiple sensors. The second object is to provide a method for manufacturing the glass window. The third object is to provide the use of the glass window as a window. Summary of the invention

[0007] In a first aspect, the invention provides a glazing for a plurality of sensors, the glazing comprising the features of claim 1 .

[0008] The present invention provides a glass window for multiple sensors, comprising: a glass plate, a conductive coating on a portion of the surface of the glass plate, a first busbar and a second busbar for providing voltage to the conductive coating, a transparent area arranged between the first busbar and a portion of the conductive coating, a plurality of auxiliary busbars at the edge of the transparent area and in electrical contact with the conductive coating, at least one supply line at least partially arranged in the transparent area and connecting at least one auxiliary busbar and the first busbar, and a lower auxiliary busbar configured at the lower edge of the transparent area, wherein the transparent area has an asymmetric shape, including an imaginary symmetrical area and a protrusion protruding from a portion of the side edge of the imaginary symmetrical area, and wherein at least one side auxiliary busbar is configured at a portion of the side edge of the imaginary symmetrical area below the protrusion.

[0009] Advantageously, the glazing with an asymmetrically shaped permeable area provides a surprisingly uniform heat distribution, thanks to the protrusions and the lateral auxiliary generatrixes below the protrusions.

[0010] The prior art discloses a number of sensors, each having a symmetrical uncoated area with a non-uniform thermal distribution. The inventors observed that an asymmetrical uncoated area with side protrusions has an even more non-uniform thermal distribution.

[0011] The present invention surprisingly discloses that the side auxiliary busbars below the protrusions provide uniform heat distribution. Unexpectedly, the present invention configures the side auxiliary busbars away from the protrusions that cause uneven heat distribution, rather than at the same level.

[0012] Surprisingly, the method for producing a glazing having lateral auxiliary generatrixes at the lateral edge below the protrusion is simpler than in the prior art.

[0013] As a result of the invention, the glass window meets the industrial testing requirements for defogging and defrosting of vehicle windows with multiple sensors. The invention meets the requirements for vehicle windshields in camera systems to enable autonomous vehicles or vehicles equipped with advanced driver assistance systems.

[0014] Preferably, the protrusion partially forms an upper edge portion of the permeable area adjacent to the first busbar.

[0015] Preferably, the protrusion has a rectangular shape and a major axis parallel to the first generatrices.

[0016] Preferably, the protrusions comprise a grid of strike-through lines.

[0017] Preferably, at least one auxiliary generatrix has a rectangular shape and a main axis which is substantially perpendicular to the main axis of the protrusion.

[0018] Preferably, at least two side auxiliary generatrixes are located at a portion of a side edge of the imaginary symmetry region. Advantageously, none of the plurality of auxiliary generatrixes overlaps with the protrusion.

[0019] Preferably, the glazing comprises at least three auxiliary busbars.

[0020] Preferably, at least one interconnecting supply line connects any two auxiliary busbars.

[0021] Preferably, the glazing comprises at least two interconnected supply lines.

[0022] Preferably, the glass window further comprises a printed area, wherein the printed area forms a frame-shaped circumferential shielding strip, wherein the frame-shaped circumferential shielding strip covers the first generatrix and extends from the first generatrix at least to an edge of the permeable area.

[0023] Preferably, the glazing comprises a coated printed portion of the printed area which is covered by a portion of the conductive coating adjacent an edge of the permeable area.

[0024] Preferably, the glazing comprises at least one hole for a sensor in the printed area.

[0025] Preferably, the glass pane is bonded to another glass pane via a layer of interlayer material to form a laminated glass, one of the glass panes being an inner glass pane for facing the plurality of sensors.

[0026] Preferably, the power density of the conductive coating between the first busbar and the second busbar is 100-3,000 W / m 2 In the range of 200-1,000 W / m 2 The range is preferably 300-600W / m 2 within the range.

[0027] Preferably, the resistance of at least one power supply line, the resistance of at least one interconnecting power supply line, the sheet resistance of the conductive coating, the positions of the first busbar and the second busbar, and the positions of the auxiliary busbars are configured such that a 14 volt voltage applied to the first busbar and the second busbar causes a voltage drop between the first busbar and each auxiliary busbar in the range of 0.8-3.3 volts. For an applied voltage of 48 volts, the voltage drop range is 2.7-11.3 volts. For other applied voltages, the voltage drop range is in the same proportion.

[0028] In a second aspect, the present invention provides a method for manufacturing a glass window, comprising the following steps: providing a glass sheet, depositing a conductive coating on the surface of the glass sheet, forming a first busbar and a second busbar on the conductive coating for supplying voltage thereto, arranging a transparent area of ​​the glass sheet between the first busbar and a portion of the conductive coating, configuring a plurality of auxiliary busbars at the edge of the transparent area and making them electrically contact with the conductive coating, configuring at least one supply line connecting at least one auxiliary busbar and the first busbar in the transparent area, configuring a lower auxiliary busbar among the plurality of auxiliary busbars at the lower edge of the transparent area, and configuring the transparent area to have an asymmetric shape, including an imaginary symmetrical area and a protrusion protruding from a portion of a side edge of the imaginary symmetrical area, and wherein at least one side auxiliary busbar is configured at a portion of the side edge of the imaginary symmetrical area that is lower than the protrusion.

[0029] Preferably, the step of depositing the conductive coating is preceded by the step of configuring a printed area forming a frame-shaped circumferential shielding strip to shield the first busbar and extending from the first busbar at least to the edge of the transparent area, optionally, so that the glass window includes a coated printed portion of the printed area, which is covered by a portion of the conductive coating adjacent to the edge of the transparent area.

[0030] Preferably, the method comprises bonding a glass pane to another glass pane via a layer of interlayer material to form a laminated glass, one of the glass panes being an inner glass pane for facing the plurality of sensors.

[0031] In a third aspect, the invention provides the use of a glazing according to claim 1 as a windshield, rear window, side window or sunroof of a motor vehicle for use in a sensor system to enable automated driving vehicles or vehicles equipped with advanced driver assistance systems.

[0032] The invention will now be disclosed by way of non-limiting figures and examples. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is an embodiment of the present invention having protrusions (dotted areas) from an imaginary symmetric area (the rest of the asymmetric area bounded by the dotted lines).

[0034] Figure 2 is along Figure 1 The section of line AA.

[0035] Figure 3 is an embodiment of the present invention having interconnected supply lines.

[0036] Figure 4 is an embodiment of the present invention having three auxiliary busbars.

[0037] Figure 5is an embodiment of the present invention having three auxiliary busbars and one interconnecting supply line.

[0038] Figure 6 is an embodiment of the invention having three auxiliary busbars and two interconnecting supply lines.

[0039] Figure 7 is an embodiment of the invention having a printed coated area.

[0040] Figure 8 is along Figure 7 The section of line AA.

[0041] Fig. 9 is an embodiment of the invention having printed coating areas and one interconnecting supply line.

[0042] Fig.10 is an embodiment of the invention having a printed coating area and two interconnecting supply lines. DETAILED DESCRIPTION

[0043] Figure 1 A glazing 10 for multiple sensors according to the invention is disclosed, comprising a glass sheet 1 and a conductive coating 2 deposited on a major portion of the glass sheet 1 , the boundaries of the coated area 2 being shown in dashed lines.

[0044] The peripheral area of ​​the glass pane 1 is uncoated because it is covered during the deposition of the conductive coating 2 or the edges of the conductive coating 2 are removed in the peripheral area. The uncoated peripheral area can be used for electrical insulation of the edge of the glazing 10 and to avoid chemical corrosion of the conductive coating 2 due to water ingress.

[0045] The conductive coating 2 is typically transparent. The conductive coating 2 may include two, three or four layers of silver, or a transparent conductive oxide (TCO) layer, such as tin oxide, fluorine-doped tin oxide or indium tin oxide. The sheet resistance of the conductive coating 2 on the glass plate 1 is typically in the range of 0.1 to 10 ohms / square, preferably in the range of 0.5 to 5 ohms / square, and more preferably in the range of 0.7 to 1.5 ohms / square. The conductive coating 2 may include three silver layers and have a thickness in the range of 237 to 277 nanometers.

[0046] The first and second busbars 3a, 3b are configured to contact the conductive coating 2, preferably at the upper and lower edges, respectively, to provide a voltage. The first and second busbars 3a, 3b can be printed on the glass sheet 1 by screen printing or inkjet printing of conductive ink. The conductive ink contains glass frit mixed with conductive particles (usually silver). The glass window 10 with the printed ink 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 conductive material, usually copper. The first and second busbars 3a, 3b can be any shape with low resistance, preferably rectangular, so that substantially the same voltage can be obtained along their length for uniform heat distribution in the conductive coating 2. The ends of the first and second busbars 3a, 3b extend into the uncoated peripheral area to avoid hot spots at the edges of the conductive coating 2.

[0047] The permeable region 4 is arranged between the first busbar 3a and the part of the conductive coating 2. During the deposition of the conductive coating 2, the permeable region 4 can be shielded to form a permeable region 4 without coating. Alternatively, or in addition, removing the conductive coating 2 can provide a permeable region 4 without coating or partially without coating. The coating removal can be by any process, preferably mechanical abrasion or laser ablation. The permeable region 4 enables electromagnetic radiation of a predetermined wavelength to pass through the glass window 10 to allow data transmission for multiple sensors. The permeable region 4 may include a grid pattern with a pitch suitable for the predetermined wavelength of the electromagnetic radiation, and may be optionally configured as a protrusion 4a. The protrusion 4a may protrude from a portion of the side edge of the imaginary symmetrical region so that the permeable region 4 is asymmetric. The imaginary symmetrical region may have any symmetrical shape, including a U-shape, a semi-ellipse, a semicircle, a triangle or a rectangle. The protrusion 4a may have any shape, including a rectangle, and partially forms an upper edge portion of the permeable region adjacent to the first busbar 3a.

[0048] exist Figure 1 In the embodiment, two auxiliary busbars 5a, 5b are arranged at the edge of the permeable area 4 and are in electrical contact with the conductive coating 2. The lower auxiliary busbar 5a is arranged at the lower edge of the permeable area 4. Preferably, the lower auxiliary busbar 5a is arranged to include the lowest point of the permeable area 4.

[0049] exist Figure 1In the embodiment, two supply lines 6a, 6b are arranged in the permeable area 4 connecting the two auxiliary busbars 5a, 5b to the first busbar 3a, respectively. The resistance of the supply lines 6a, 6b, 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 are configured so that a 14 volt voltage applied to the first and second busbars 3a, 3b produces a predetermined voltage drop between the first busbar 3a and each auxiliary busbar 5a, 5b. The predetermined voltage drop is in the range of 0.8 to 3.3 volts, preferably in the range of 0.9 to 3.13 volts.

[0050] The conductive coating 2 may have any heated surface area, for example in the range of 0.56-1.56 m 2 In the range of 0.76-1.36m, preferably 2 The range is preferably 0.86-1.16m 2 within the range.

[0051] The conductive coating 2 may have any power density, for example, between 281-354 W / m 2 The range is preferably 291-344W / m 2 In the range of 301-334W / m 2 within the range.

[0052] Figure 2 is along Figure 1 AA of the cross section. In this embodiment, the glass sheet 1 is an outer glass sheet bonded to an inner glass sheet 12 by a layer 11 of an interlayer material. 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, 12 are preferably soda-lime-silica glass manufactured using a float process. The glass thickness is preferably in the range of 2-12 mm. The glass sheets 1, 12 may be tempered glass having a surface stress greater than 65 MPa, or heat-strengthened glass having a surface stress in the range of 40-55 MPa, or semi-tempered glass having a surface stress in the range of 20-25 MPa, or annealed glass. The interlayer material 11 is any thermoplastic resin, preferably polyvinyl butyral (PVB).

[0053] Figure 3 Discloses a similar Figure 1 The embodiment further comprises an interconnection supply line 6ac electrically connected between the lower auxiliary bus bar 5a and the side auxiliary bus bar 5c.

[0054] Figure 4 Discloses a similar Figure 1 The embodiment further includes a second side auxiliary bus 5b, which is arranged between the lower auxiliary bus 5a and the side auxiliary bus 5c.

[0055] Figure 5Discloses a similar Figure 4 The embodiment further includes an interconnection supply line 6ab electrically connected between the lower auxiliary bus bar 5a and the second side auxiliary bus bar 5b.

[0056] Figure 6 Discloses a similar Figure 5 The embodiment further includes a second interconnection supply line 6bc electrically connected between the second side auxiliary bus bar 5b and the side auxiliary bus bar 5c.

[0057] Figure 7 Discloses a similar Figure 1 The embodiment further comprises a printed area 7, which forms a frame-shaped circumferential shielding strip, which covers the first busbar 3a and extends from the first busbar 3a at least to the edge of the permeable area 4. The boundary of the printed area 7 is shown with a solid line.

[0058] Preferably, a portion of the printed area 7 extends beyond the edge of the permeable 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 directly on the glass plate 1. Typically, the sheet resistance of the coated printed portion 8 is greater than or equal to twice the sheet resistance of the conductive coating 2 directly on the glass plate 1. The sheet resistance of the coated printed portion 8 is typically in the range of 0.2-20 ohms / square, preferably in the range of 1.0-10 ohms / square, and more preferably in the range of 1.4-3.0 ohms / square.

[0059] The glazing 10 also comprises an aperture 9 in a portion of the printed area 7 that masks the permeable area 4. The aperture 9 is intended for a sensor, such as a camera for visible or infrared wavelengths, so that the sensor is not masked by the printed area 7.

[0060] The glass window 10 also includes an observation area. The observation area can be of any shape. At least one imaginary temperature test line 13 is located at a predetermined distance between the highest point and the lowest point of the observation area. Preferably, the temperature distribution is controlled at three temperature test lines 13, namely the bottom quartile, the middle line and the top quartile. Preferably, the observation area is defined by the printed area 7.

[0061] Figure 8 is along Figure 7 The section of line AA, Figure 8 It is disclosed that the printed area 7 is printed on the inner surface S2 of the glass sheet 1, shown as the outer glass sheet of the laminated glass 10. Alternatively, the glass sheet 1 may be the inner glass sheet, with the printed area 7 being on the surface S3 of the laminated glass 10.

[0062] The printed area 7 may include a black enamel. The black enamel is preferably deposited as a black ink in selected areas on the glass sheet 1 by screen printing. The glass sheet 1 is then fired at a predetermined temperature for a predetermined time to form the black enamel. Advantageously, the printed area 7 extends around the periphery of the glass window 10 to cover an adhesive material, such as polyurethane (PU), used to bond the glass window 10 to a vehicle body or a window frame (not shown).

[0063] Fig. 9 Discloses a similar Figure 7 The embodiment further comprises an interconnection line 6ac electrically connected between the lower auxiliary busbar 5a and the side auxiliary busbar 5c. Advantageously, the interconnection line 6ac is configured to have a path around the hole 9 for heating, defogging or defrosting the hole 9 while achieving a predetermined voltage drop between the first busbar 3a and each auxiliary busbar 5a, 5c, thereby reducing hot spots in the temperature distribution around the permeable area 4.

[0064] Fig.10 Discloses a similar Fig. 9 The embodiment further comprises a second side auxiliary busbar 5b, and comprises two interconnection supply lines 6ab, 6bc, which are electrically connected between the lower auxiliary busbar 5a and the second side auxiliary busbar 5b and between the second side auxiliary busbar 5b and the side auxiliary busbar 5c. Advantageously, Fig. 9 and Fig.10 The embodiments do not Figure 7 The inventors have found that the interconnecting supply lines 6ac (in Fig. 9 in) or 6ab and 6bc (in Fig.10 ) provides advantageous heating, demisting or defrosting of the hole 9, and at the same time achieves a predetermined voltage drop between the first busbar 3a and each auxiliary busbar 5a, 5c, thereby reducing hot spots in the temperature distribution line 13.

[0065] The protrusion 4a is advantageous for a sensor (such as a camera, an RFID tag or any electronic device) to emit and receive electromagnetic radiation, such as visible light or radio frequency. For example, the car window allows the acquisition of data for a toll collection system, or for an advanced driver assistance system (ADAS) to assist the driver in driving and parking. The sensor is mounted on a support (not shown) aligned with the protrusion 4a, either directly on the surface S2 of the glass plate 1, or on the inner surface S4 of the glass window 10. Advantageously, the protrusion 4a is covered by the printed area 7, so that the sensor is shielded in the visible part of the electromagnetic spectrum, but data transmission is achieved at a predetermined radio frequency wavelength.

[0066] Examples

[0067] Table 1 discloses simulation results for three examples of glazing 10 according to the invention and one comparative example according to the prior art.

[0068] The hypothetical temperature distribution line 13 is monitored at the upper quartile of the observation area of ​​the glazing 10 and at the auxiliary busbars 5a, 5b, 5c.

[0069] The comparative example has the lower auxiliary busbar 5a but lacks the side auxiliary busbars 5b, 5c arranged on a portion of the side edge of the imaginary symmetric region, which are arranged below the protrusion 4a. An unacceptable hot spot of 71.7°C occurs at the lower auxiliary busbar 5a.

[0070] According to Example 1 of the present invention, in addition to the lower auxiliary busbar 5a, a side auxiliary busbar 5b is included. The side auxiliary busbar 5b is spaced apart from the protrusion 4a and is closer to the lower auxiliary busbar 5a than the protrusion 4a. A temperature point of 49.5°C is generated on the lower auxiliary busbar 5a.

[0071] According to Example 2 of the present invention, in addition to the lower auxiliary busbar 5a, a side auxiliary busbar 5c is also included, which is arranged on a part of the side edge of the imaginary symmetrical region, and is arranged to be lower than the protrusion 4a but as close to the protrusion 4a as possible. A temperature point of 59.8°C is generated on the side auxiliary busbar 5c.

[0072] According to Example 3 of the present invention, in addition to the lower auxiliary busbar 5a, two side auxiliary busbars 5b and 5c are also included. The side auxiliary busbar 5c is as close to the protrusion 4a as possible. The side auxiliary busbar 5b is spaced apart from the protrusion 4a and is closer to the lower auxiliary busbar 5a than the protrusion 4a. A temperature point of 49.9°C is generated on the side auxiliary busbar 5c.

[0073] Table 1: Auxiliary busbar temperatures in °C.

[0074] Auxiliary bus 5a 5b 5c A B C Comparative Example A 71.7 none none Example 1 A. B 49.5 33.9 none Example 2 A.C 52.3 none 59.8 Example 3 A, B, C 49.9 <30 56.3

[0075] The key in the picture

[0076] The references in the attached drawings are as follows:

[0077] 1 – Glass Pane

[0078] 2 – Conductive coating

[0079] 3a, 3b – Busbar

[0080] 4 – Permeable Area

[0081] 4a – Protrusion

[0082] 5a, 5b, 5c – Auxiliary busbars

[0083] 6a, 6b, 6c – Supply lines

[0084] 6ab, 6ac, 6bc – Interconnect supply lines

[0085] 7 – Printing Area

[0086] 8 – Coating printed part of the printing area

[0087] 9 – Holes in the printed area

[0088] 10 – Glass Windows

[0089] 11 – Middle layer material

[0090] 12 – Another Glass Pane

[0091] 13-Temperature test line

[0092] S1 – Surface 1

[0093] S2 – Surface 2

[0094] S3 – Surface 3

[0095] S4 – Surface 4

Claims

1. A glass window (10) for multiple sensors, comprising: - a glass plate (1), - a conductive coating (2) on a portion of the surface of the glass sheet (1), - a first busbar and a second busbar (3a, 3b) for supplying a voltage to the conductive coating (2), a permeable region (4) arranged between the first busbar (3a) and a portion of the conductive coating (2), - a plurality of auxiliary busbars (5a, 5b, 5c) located at the edge of the permeable area (4) and in electrical contact with the conductive coating (2), at least one supply line (6a, 6b, 6c) arranged in the permeable area (4) connecting at least one auxiliary busbar (5a, 5b, 5c) to the first busbar (3a), - a lower auxiliary busbar (5a) among the plurality of auxiliary busbars (5a, 5b, 5c) is arranged at the lower edge of the permeable area (4), in: - the permeable area (4) has an asymmetrical shape, including an imaginary symmetrical area and a protrusion (4a) protruding from a part of the side edge of the imaginary symmetrical area, and - At least one side auxiliary busbar (5b, 5c) among the plurality of auxiliary busbars (5a, 5b, 5c) is arranged at a portion of a side edge of the imaginary symmetrical region that is lower than the protrusion (4a).

2. The glass window (10) according to claim 1, wherein: The protrusion (4a) partially forms an upper edge portion of the permeable area (4) adjacent to the first generatrix (3a).

3. The glass window (10) according to claim 1 or 2, wherein: The protrusion (4a) has a rectangular shape and a major axis parallel to the first generatrix (3a).

4. A glazing unit (10) according to any preceding claim, wherein: The protrusion (4a) comprises a grid of strikethrough lines.

5. A glazing unit (10) according to any preceding claim, wherein: At least one auxiliary busbar (5a, 5b, 5c) has a rectangular shape and a main axis that is substantially perpendicular to the main axis of the protrusion (4a).

6. A glazing unit (10) according to any preceding claim, wherein: None of the plurality of auxiliary bus bars (5a, 5b, 5c) overlaps with the protrusion.

7. Glazing (10) according to any preceding claim, comprising at least three auxiliary busbars (5a, 5b, 5c).

8. The glazing (10) according to any preceding claim, further comprising at least one interconnecting supply line (6ab, 6ac, 6bc) connecting any two auxiliary busbars (5a, 5b, 5c).

9. The glazing unit (10) according to claim 8, comprising at least two interconnected supply lines (6ab, 6ac, 6bc), each supply line connecting any two auxiliary busbars (5a, 5b, 5c).

10. The glazing unit (10) according to any preceding claim, further comprising: A printed area (7) forms a frame-shaped circumferential shielding strip, which covers the first busbar (3a) and extends from the first busbar (3a) at least to the edge of the permeable area (4).

11. The glass window (10) according to claim 10, further comprising: A coated printed portion (8) of the printed area (7) is covered by a portion of the conductive coating (2) adjacent to the edge of the permeable area (4).

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

13. Glazing (10) according to any preceding claim, comprising at least one hole (9) for a sensor in the printed area (7).

14. Glazing (10) according to any preceding claim, wherein: The glass sheet (1) is bonded to another glass sheet via a layer (11) of an interlayer material to form a laminated glass, wherein one of the glass sheets is an inner glass sheet (12) for facing the plurality of sensors.

15. The glazing unit (10) according to any preceding claim, wherein the power density in the conductive coating (2) is between 100 and 3,000 W / m 2 range, more preferably 200-1,000W / m 2 The most preferred range is 300-600W / m 2 within the range.

16. Glazing unit (10) according to any preceding claim, wherein: The resistance of the at least one supply line (6a, 6b, 6c), the resistance of the at least one interconnecting supply line (6ab, 6ac, 6bc) and the sheet resistance of the conductive coating (2) as well as the positions of the first and second busbars (3a, 3b) and the positions of the auxiliary busbars (5a, 5b, 5c) are configured such that a 14 volt voltage applied to the first and second busbars (3a, 3b) causes a voltage drop between the first busbar (3a) and each auxiliary busbar (5a, 5b, 5c) in the range of 0.8 to 3.3 volts.

17. A method for manufacturing a glass window (10) for multiple sensors according to claim 1, comprising the following steps: - providing a glass plate (1), - depositing a conductive coating (2) on the surface of the glass sheet (1), - forming a first busbar and a second busbar (3a, 3b) on the conductive coating (2) for supplying voltage thereto, - a permeable area (4) of the glass sheet is arranged between the first busbar (3a) and a portion of the conductive coating (2), - a plurality of auxiliary busbars (5a, 5b, 5c) are arranged at the edge of the permeable area (4) and in electrical contact with the conductive coating (2), - arranging at least one supply line (6a, 6b, 6c) in the permeable area (4) and connecting at least one auxiliary busbar (5a, 5b, 5c) to the first busbar (3a), - Arrange a lower auxiliary busbar (5a) at the edge of the transparent area (4), The method further comprises the following steps: - configuring the permeable area (4) to have an asymmetrical shape including an imaginary symmetrical area and a protrusion (4a) from a portion of a side edge of the imaginary symmetrical area, - at least one side auxiliary busbar (5b, 5c) among the plurality of auxiliary busbars (5a, 5b, 5c) is arranged at a portion of a side edge of the imaginary symmetrical region that is lower than the protrusion (4a).

18. A method for manufacturing a glass window (10) according to claim 17, wherein before the step of depositing the conductive coating (2), a step of configuring a printing area (7) is performed, the printing area forming a frame-shaped circumferential masking strip to at least cover the first busbar (3a) and extend from the first busbar (3a) at least to the edge of the transparent area (4).

19. The method for manufacturing a glass window (10) according to claim 17 or 18, further comprising: The step of bonding a glass sheet (1) to another glass sheet via a layer (11) of an interlayer material to form a laminated glass, wherein one of the glass sheets is an inner glass sheet (12) intended to face the plurality of sensors.

20. Use of a glazing (10) according to claim 1 as a windshield, rear window, side window or sunroof of a motor vehicle, for use in a sensor system to enable autonomous vehicles or vehicles equipped with advanced driver assistance systems.

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