Device for disinfection and motor vehicle having at least one disinfection device

Abstract

The invention relates to a device for disinfecting at least a part of the interior space (I) of a motor vehicle. The device includes a window glass (10′), which is designed such that in the installed state of the window glass (10′), ultraviolet light (L1′) can be emitted from the direction of the window glass (10′) into the interior space (I) of the motor vehicle. The invention proposes that at least one ultraviolet light source is arranged outside the window glass (10′), wherein the ultraviolet light (L1) of the ultraviolet light source can be incident on the window glass (10′) and can be emitted through the emission structure (14′) of the window glass (10′) in the direction of the interior space (I).

Description

Field of the Invention

[0001] The present invention relates to a device for disinfecting at least a part of the interior space of a motor vehicle, wherein the device comprises a window glass which is designed such that in the installed state of the window glass, ultraviolet light can be emitted from the direction of the window glass into the interior space of the motor vehicle. The present invention also relates to a motor vehicle having a device for disinfection. Background Art

[0002] A suitable way of disinfecting the interior of a motor vehicle must be given due significance. This applies in particular to vehicles with frequent passenger changes, such as vehicles in a car-sharing garage. Different literature descriptions of disinfection methods or disinfection devices in motor vehicles, for example, have recognized the need for disinfection related to motor vehicles.

[0003] For example, in patent document WO 2017 / 204774 A1, a motor vehicle is described which is equipped with a plurality of devices for generating ultraviolet light in its interior space. It is proposed to arrange the ultraviolet light sources in the accommodation space of a rear, openable bracket. In addition, it is proposed to install the ultraviolet light sources in the accommodation space of the glove box of the motor vehicle or in the storage shelf of the middle bracket.

[0004] From patent document DE 10 2015 115 029 A1, an operating device for a motor vehicle is known which has a self-disinfecting operating surface. The operating device specifically has a lighting device which is designed to emit radiation in the wavelength range of ultraviolet light onto the operating surface in order to disinfect the operating surface. A light guide element is at least regionally arranged between the lighting device and the operating surface, and the light guide element is designed to guide the ultraviolet rays for disinfection emitted by the lighting device onto the operating surface.

[0005] Finally, in patent document DE 10 2016 110 547A1 which forms the preamble of the dependent claims, a motor vehicle having a device configured to disinfect the vehicle is described. The device includes a first electrode which substantially covers a part of a light-transmitting plate for this purpose. A plurality of printed light-emitting diodes are suspended in a semiconductor printing pigment on the first electrode and are configured to emit disinfection radiation. A second electrode is electrically connected to the plurality of light-emitting diodes (LEDs). A light-transmitting layer forms the inner surface of the light-transmitting plate and is connected to the second electrode. The light-transmitting layer is designed to allow at least part of the disinfection radiation to pass through, so that this part can reach the inner surface of the vehicle. The device can be a component of a vehicle window, and the vehicle window can be designed, for example, as a glass roof. The device has an emission layer which is complexly constructed from a plurality of layers here. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a simply constructed device for disinfecting at least a part of the interior space of a motor vehicle.

[0007] The technical problem is solved by a device for disinfecting at least a part of the interior space of a motor vehicle, wherein the device includes a window glass, and the window glass is designed such that in the installed state of the window glass, ultraviolet light can be emitted from the direction of the window glass into the interior space of the motor vehicle. It is characterized in that at least one ultraviolet light source is arranged outside the window glass, and the ultraviolet light of the ultraviolet light source can be laterally incident into the window glass and emitted towards the interior space through the light-emitting structure of the window glass.

[0008] Preferred design solutions include at least one of the following technical features:

[0009] The window glass has at least two mutually overlapping transparent glasses, and at least one light-conducting film is arranged between the glasses, and the ultraviolet light of the at least one ultraviolet light source is incident into the at least one light-conducting film;

[0010] The window glass has at least one ultraviolet reflection layer, and the ultraviolet reflection layer prevents ultraviolet rays from penetrating from one side of the window glass to the other side;

[0011] The at least one ultraviolet light source is a component of an optical module, the optical module has at least one circuit board, the at least one ultraviolet light source is arranged on the circuit board, and the circuit board is surrounded by a housing and can be connected to the on-vehicle power grid of the motor vehicle through a plug connection device;

[0012] The optical module is optically coupled to the window glass through an optical conductor;

[0013] There is at least one light source capable of emitting visible light, and the light source is also a component of an optical module, the optical module has at least one circuit board, the at least one visible light-emitting light source is arranged on the circuit board, and the circuit board is surrounded by a housing, and the housing can be connected to the on-vehicle power grid of the motor vehicle through a plug connection device;

[0014] The optical module is optically coupled to the window glass through an optical conductor;

[0015] The optical module including the at least one ultraviolet light source and the optical module including the at least one visible light-emitting light source are the same optical module;

[0016] The optical module is optically coupled to the window glass via an optical conductor. The optical conductor has two light incident surfaces, one of which is correspondingly assigned to the at least one ultraviolet light source and the other of which is correspondingly assigned to the at least one visible light emitting source. The light incident surfaces merge into a common light exit surface.

[0017] The technical problem is solved by a motor vehicle having at least one disinfection device provided with the device according to the invention.

[0018] The present invention starts from a device for disinfecting at least a part of the interior space of a motor vehicle, the device including a window glass. The window glass is designed such that in its installed state, ultraviolet light can be emitted from the direction of the window glass into the interior space of the motor vehicle.

[0019] According to the invention, it is proposed to arrange at least one ultraviolet light source outside the window glass, and the ultraviolet light of the ultraviolet light source can be laterally incident into the window glass and can be emitted through the light exit structure of the window glass towards the interior space.

[0020] This feature creates the precondition for a simple structure of the device. Due to this precondition, in particular, it is possible to irradiate the interior space of the motor vehicle with ultraviolet light over a large area in a simple and low-cost manner.

[0021] For example, it can be considered that the window glass is part of the glass roof of the motor vehicle or part of a sliding sunroof / lift-up sunroof. It can also be considered that the window glass is a side window glass, a windshield, or a rear window glass of the motor vehicle.

[0022] It is possible to very simply and space-savingly realize the lateral incidence of ultraviolet light into the window glass. When the light exit structure, which can be designed to extend over the entire surface or almost the entire surface of the window glass, is appropriately designed, the entire surface of the window glass can be used for the emission of ultraviolet light into the interior space of the motor vehicle.

[0023] Since the window glass must originally exist in the motor vehicle, this originally existing component can be used at low cost to implement the device.

[0024] The light exit structure can be realized, for example, by interference positions in the window glass. It can also be considered to form the light exit structure by printing on the window glass.

[0025] At least one ultraviolet light source is preferably designed to emit ultraviolet light in a wavelength spectral range of from about 100 nanometers to about 420 nanometers, particularly preferably in a spectral range of from about 200 nanometers to about 280 nanometers, and particularly preferably in a spectral range of from 250 nanometers to about 280 nanometers. The at least one ultraviolet light source is particularly preferably designed such that the ultraviolet light source can emit light radiation in the UV-C range.

[0026] According to a first extended design proposal, the window glass has at least two overlapping, transparent glasses, and a light-conducting film is arranged between the glasses, wherein the ultraviolet light of at least one ultraviolet light source is incident or can be incident into the film.

[0027] This extended design creates the basic premise that the window glass can be designed as safety glass and nevertheless can be used as an exit surface for ultraviolet light.

[0028] The light-conducting film is preferably composed of a transparent, elastic, and tear-resistant material. For example, it can be considered that the light-conducting film is composed of polyvinyl butyral (PVB).

[0029] Furthermore, the most advantageous design of the inventive concept proposes that the window glass has at least one ultraviolet reflection layer that prevents ultraviolet rays from penetrating from one side of the window glass to the (opposite) other side of the window glass. This can significantly improve the effectiveness of the device. That is, it makes the ultraviolet light incident on the window glass unable to reach the outside (enter the surrounding environment of the vehicle). Another advantage is that ultraviolet rays cannot enter the interior from outside the vehicle either. This can also resist excessive heating inside the vehicle in hot weather.

[0030] For the compact construction of the device and easier installation / dismantling, in another embodiment of the present invention, at least one UV light source is part of an optical module. The optical module has at least one circuit board, and at least one ultraviolet light source is arranged on the circuit board. The circuit board is surrounded by a housing here and can be connected to the on-vehicle power grid of a motor vehicle through a plug-in connection device.

[0031] In another extended design, the optical module can be optically coupled to the window glass through an optical conductor. Although only one or a small number of ultraviolet light sources are used, this extended design still enables the light to be incident on a large area of the window glass.

[0032] A possible requirement is that ambient lighting should be achieved in a motor vehicle through the window glass. For this case, it is particularly suitable that there is at least one light source that can emit visible light, and the light source is also a component of the light module. The light module in turn has at least one circuit board, and at least one light source that emits visible light is arranged on the circuit board. The circuit board is surrounded by a housing, and the housing can be connected to the vehicle's on-board power grid through a plug-in connection device.

[0033] For example, it can be considered that a light module having at least one light source that emits visible light is arranged on the side of the window glass that is opposite to the light module having at least one ultraviolet light source.

[0034] Therefore, the light module for emitting ultraviolet light or other light modules for emitting visible light can be controlled according to the current operating conditions.

[0035] However, during the operation of the device, it must be ensured that ultraviolet light can only be emitted when there are no living beings (such as people and / or pets) in the interior space of the motor vehicle.

[0036] By activating the light module that emits ultraviolet light, the reproduction and influence of bacteria, viruses, and / or fungi can be effectively resisted after a possibly to-be-determined action time. The to-be-determined action time depends on the distance between the ultraviolet light and the surface to be disinfected in the interior space of the motor vehicle and the intensity of the ultraviolet light.

[0037] For the same reason as described above, it is advantageous here that the light module that emits visible light is also optically coupled to the window glass through an optical conductor.

[0038] If the light module containing at least one ultraviolet light source and the light module containing at least one light source that emits visible light are the same light module, the compactness of the device can be further improved thereby.

[0039] Both the ultraviolet light source and the light source that can emit visible light are preferably designed as light-emitting diodes. The light source that emits visible light is preferably designed as an RGB light-emitting diode that can emit light of all possible colors here.

[0040] When integrating the ultraviolet light source and the light source that emits visible light into the light module, it is very advantageous that the light module is optically coupled to the window glass through an optical conductor, where the optical conductor has two light-incident surfaces. One of the light-incident surfaces is correspondingly assigned to at least one ultraviolet light source and the other light-incident surface is correspondingly assigned to at least one light source that emits visible light. The light-incident surfaces merge and transition to a common light-emitting surface. The common light-emitting surface faces the light-incident surface of the window glass.

[0041] This enables, in a very compact construction, to ensure that the optical module can emit visible light or ultraviolet light in a situation where disinfection can be carried out without danger.

[0042] The invention should also protect a motor vehicle equipped with at least one device for disinfection according to the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Preferred embodiments of the invention are shown in the drawings and are elaborated in detail in the following description with reference to the drawings. Other advantages and features of the invention are also elucidated thereby. The same reference numerals refer to the same, similar or functionally similar components even in different drawings. Corresponding or similar characteristics and advantages are achieved even without repeated description or reference thereto. These drawings are not or at least not always drawn to scale. In some drawings, the scale or distance may be exaggerated to more clearly highlight the features of the embodiments. If the term "and / or" is used when listing two or more terms or objects, this may mean that any of the listed terms or objects can be used alone. It may also mean that any combination consisting of two or more of the listed terms or objects can be used.

[0044] Schematically in the drawings respectively,

[0045] Figure 1 a view of the device in a first perspective is shown,

[0046] Figure 2 showing a relatively highly magnified view of a partial area of the device according to Figure 1 in perspective II,

[0047] Figure 3a showing a cross-sectional view taken along section line III of the window glass of the device in a first embodiment according to Figure 1 ,

[0048] Figure 3b showing a cross-sectional view taken along section line III of the window glass of the device in a second embodiment according to Figure 1 ,

[0049] Figure 4 showing a motor vehicle having a device according to the invention, and

[0050] Figure 5 showing a signal diagram for elucidating the cooperation of relevant components. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] First, with reference to Figure 1 and Figure 2。The device 1 is shown in these figures, where the device 1 is in a state of being installed in or within a motor vehicle and is used for disinfecting the interior space of the motor vehicle. The device 1 has a window glass 10, and the window glass has a surface extension dimension F. In addition, an optical module 20 is also shown. The optical module 20 has a housing 21, and a circuit board 22 is accommodated in the housing. The circuit board 22 carries a plurality of ultraviolet light sources 23a and a plurality of light sources 23b capable of emitting visible light.

[0052] The ultraviolet light source 23a is preferably designed to emit ultraviolet light in a wavelength spectral range of approximately 100 nanometers to approximately 420 nanometers, particularly preferably in a spectral range of approximately 200 nanometers to approximately 280 nanometers, and particularly preferably in a spectral range of 250 nanometers to approximately 280 nanometers. That is, the ultraviolet light source 23a is particularly preferably designed such that the ultraviolet light source can emit light radiation in the UV-C range.

[0053] The light sources 23a, 23b are preferably designed as light-emitting diodes, and among them, the light source 23b capable of emitting visible light is preferably designed as an RGB light-emitting diode capable of emitting light of different colors.

[0054] The circuit board 22 can be connected to the vehicle electrical network of the motor vehicle through a plug connection device 24. The plug connection device 24 is preferably fixedly integrated into the housing 21. Different from this embodiment, it is also conceivable that the plug connection device 24 can be movably connected to the circuit board 22 or to the housing 21 through a flexible line.

[0055] In this embodiment, the ultraviolet light sources 23a and the light sources 23b capable of emitting visible light are respectively arranged adjacent to each other in columns. Here, an optical conductor 25 is optically connected after the light sources 23a, 23b along the light emission direction.

[0056] The ultraviolet light L1 emitted by the ultraviolet light source 23a can be injected into the optical conductor 25 through a light injection surface 25a, and the visible light L2 emitted by the light source 23b can be injected into the optical conductor 25 through a light injection surface 25b.

[0057] The light injection surface 25a is a part of the first branch 25d of the optical conductor 25, and the light injection surface 25b is a part of the second branch 25e of the optical conductor 25.

[0058] It can be seen that the branches 25d and 25e are oriented so close that the branches meet in a merging region 25f, are joined to each other by material bonding, and form a common light emission surface 25c.

[0059] The edge surface 10a of the window glass 10 corresponds to the light emission surface 25c, and the edge surface serves as the light injection surface of the window glass 10.

[0060] Now according toFigure 3a A possible embodiment of the window glass 10 is described in detail. As can be seen here, the window glass 10 consists of two mutually superposed glasses 11 and 12 when observed in cross-section. Each of the glasses 11, 12 is preferably designed to be transparent. The glasses 11 and 12 can be designed as glass sheets.

[0061] Let I denote the interior space of the motor vehicle. The interior space of the motor vehicle is separated from the external environment U of the motor vehicle by the device 1 or the window glass 10 in the installed state of the device 1 or the window glass.

[0062] A light-conducting film 13 is arranged between the glasses 11, 12. The film 13 is preferably made of a transparent, elastic and tear-resistant material. For example, it can be considered that the film 13 is made of polyvinyl butyral (PVB). In this way, the window glass 10 can be used as a safety composite. The film 13 is connected to the glasses 11 and 12 in a suitable manner (for example, by applying pressure and temperature).

[0063] Furthermore, there is an emission structure 14, which is located inside the film 13 and preferably extends along the entire surface of the window glass 10 by a dimension F (see Figure 1 ). The emission structure 14 consists of a plurality of small interference positions 15 implanted in the film 13. The interference positions 15 can be implanted in the film 13, for example, by a laser method. The interference positions 15 are preferably arranged in the edge region of the film 13 facing the glass 11, that is, facing the surrounding environment U. However, the edge-side emission structure 14 can also be realized by appropriately printing the film 13.

[0064] Due to the emission structure 14, the ultraviolet light L1 or the incident visible light L2 incident on the film 13 is deflected at the interference positions 15 and can be emitted as the emitted ultraviolet light L1' or the emitted visible light L2' in the direction of the interior space I.

[0065] Figure 3b Another embodiment 10' of the window glass of the device 1 is described. Different from the window glass 10, the window glass 10' has a film 13' that is additionally designed to be reflective for ultraviolet rays.

[0066] This causes the ultraviolet light UV incident on the window glass 10' from the surrounding environment U not to enter the interior space I, but to be reflected on the film 13'. In this way, the excessive heating of the interior space I on sunny days can be significantly reduced.

[0067] The visible light L can pass through the window glass 10' unobstructed.

[0068] The property of the film 13' for reflection of ultraviolet light UV can preferably be achieved in that the film 13' is provided with an emission structure 14' designed as an ultraviolet reflection layer 16. It is also conceivable here to emboss the ultraviolet reflection layer 16 onto the film 13'.

[0069] Thus, the ultraviolet light L1 incident on the window glass 10' or the film 13' is also prevented from being emitted outwards through the window glass 10' into the surroundings U. The ultraviolet light L1 incident for disinfection can then enter the interior space I without significant losses (see L1').

[0070] The visible light L2 incident through the optical module 20 can likewise be deflected as ambient lighting in the direction of the interior space I through the emission structure 14'.

[0071] Now shown in Figure 4 is a motor vehicle K which is equipped with a plurality of devices 1 according to the invention. The motor vehicle K has a door 2 with a side window 6, a rear lid 3 and a windscreen 4.

[0072] In addition, the roof of the motor vehicle K is equipped with a sliding sunroof / lift-up sunroof.

[0073] In the embodiment, both the sliding sunroof / lift-up sunroof 5 and the windscreen 4 are designed as devices 1 according to the invention. In other words, the windscreen 4 and the sliding sunroof / lift-up sunroof 5 serve as window glasses 10 or 10', and ultraviolet light or visible light can be incident through the optical module 20 described above into the windscreen and the sliding sunroof / lift-up sunroof respectively.

[0074] The optical module 20, in particular the housing 21 of the optical module, can be designed here such that the optical module can be simply slid, for example, onto the window glass 10 or 10' and an optical coupling can thereby be achieved between the optical module 20 and the window glasses 10, 10' (see Figure 1 ).

[0075] According to Figure 4 and Figure 5 a possible method for operating the motor vehicle K is briefly described:

[0076] It is clear that there is a data bus 50 through which the analysis and control device 30 is connected in a signal-technical manner to the circuit board 22 of the optical module 20. In addition, there is a seat usage recognition device 40 which preferably can include a seat usage sensor 40a designed as a weight sensor and / or an interior space camera 40b. In addition, there is an entry sensor 41 which detects whether the door 2, the rear lid 3, the side window 6 and / or the sliding sunroof / lift-up sunroof 5 are open or have been opened respectively.

[0077] Now, for example, it can be considered that the absence of a living being in the interior I of the motor vehicle K is detected by means of the seat usage recognition device 40, i.e., by means of the weight sensor 40a and / or by means of the interior space camera 40b. This state is analyzed by the analysis and control device 30, which then gives a general authorization to activate the disinfection program. In other words, now it is possible to start the disinfection process automatically or manually (e.g., via an application on a smartphone).

[0078] It can be considered that the user sets, via a setting menu of the motor vehicle K that can be operated, for example, via an input and output device 42 (e.g., in the form of a touchscreen), whether the disinfection program should be started automatically when certain preconditions are present or only manually.

[0079] For example, it can be considered that it is determined here that when the ignition of the motor vehicle K is switched off, the motor vehicle K is left, and all entrances to the motor vehicle are closed, the disinfection program is carried out for a certain duration.

[0080] The disinfection program can, for example, be stored in a storage device (not shown) of the analysis and control device 30.

[0081] Once the disinfection program is started, a signal is sent by the analysis and control device 30, which signal prevents any entrance to the interior I of the motor vehicle from being opened.

[0082] This locking can only be released when the disinfection program is interrupted manually.

[0083] Alternatively, it can also be considered that after the disinfection program is started, once an entrance to the interior I of the motor vehicle K is opened, the current supply to at least one ultraviolet light source 23a is interrupted.

[0084] List of reference numerals

[0085] 1 Device for disinfection

[0086] 2 Door

[0087] 3 Rear cover

[0088] 4 Windshield

[0089] 5 Sliding sunroof / tilting sunroof

[0090] 6 Side window

[0091] 10, 10′ Window glass

[0092] 10a Edge surface

[0093] 11 Glass, glass sheet

[0094] 12 Glass, glass sheet

[0095] 13, 13′ Film

[0096] 14, 14′ Injection structure

[0097] 15 Interference position

[0098] 16 Ultraviolet reflection layer

[0099] 20 Optical module

[0100] 21 Housing

[0101] 22 Circuit board

[0102] 23a Ultraviolet light source

[0103] 23b Light source emitting visible light

[0104] 24 Plug connection device

[0105] 25 Light conductor

[0106] 25a, b Light incident surface

[0107] 25c Light exit surface

[0108] 25d, e Branches of the light conductor

[0109] 25F Converging area

[0110] 30 Analysis and control device

[0111] 40 Seat usage recognition device

[0112] 40a Seat usage sensor

[0113] 40B Interior space camera

[0114] 41 Entrance sensor

[0115] 42 Input- and output device

[0116] 50 Data bus

[0117] F Surface extension dimension

[0118] I Interior space

[0119] K Motor vehicle

[0120] L Visible light

[0121] L1 Ultraviolet light

[0122] L2 Visible light

[0123] Ultraviolet light emitted by L1'

[0124] Visible light emitted by L2'

[0125] Surroundings of U

[0126] UV Ultraviolet light

Claims

1. A device (1) for disinfecting at least a part of the interior space (I) of a motor vehicle (K), wherein, The device (1) comprises window panes (10, 10'), which are designed such that, in the installed state of the window panes (10, 10'), ultraviolet light can be emitted from the direction of the window panes (10, 10') into the interior space (I) of a motor vehicle (K). It is characterized in that at least one ultraviolet light source (23a) is arranged outside the window panes (10, 10'), wherein the ultraviolet light (L1) of the ultraviolet light source (23a) can be laterally incident into the window panes (10, 10') and can be emitted through the emission structure (14, 14') of the window panes (10, 10') in the direction of the interior space (I). Wherein, the at least one ultraviolet light source (23a) is part of an optical module (20), and the optical module has at least one circuit board (22). Wherein, an analysis and control device (30) is connected to the circuit board (22) in a signal-technical manner via a data bus. Wherein, a seat occupancy recognition device (40) is also provided and the seat occupancy recognition device is arranged to detect that there is no living being in the interior space of the motor vehicle, and the analysis and control device is arranged to analyze the state of there being no living being in the interior space and to permit the activation of disinfection. Wherein, once the disinfection program is started, a signal is sent by the analysis and control device (30), and the signal prevents any entry into the interior space (I) of the motor vehicle from being opened, and the prevention can only be lifted when the disinfection program is manually interrupted. Wherein, the window panes (10, 10') have at least two mutually superposed, transparent glasses (11, 12), and at least one light-conducting film (13, 13') is arranged between the glasses. The ultraviolet light (L1) of the at least one ultraviolet light source (23a) is incident into the at least one light-conducting film (13, 13'). The emission structure is located inside the light-conducting film and is arranged to extend over the entire surface dimension of the window panes (10, 10'). By means of the emission structure, the ultraviolet light (L1) incident into the light-conducting film is deflected and can be emitted as emitted ultraviolet light in the direction of the interior space (I).

2. The device (1) according to claim 1, characterized in that, The window pane has at least one ultraviolet reflection layer (16), and the ultraviolet reflection layer prevents ultraviolet rays (UV) from penetrating from one side of the window pane to the other side of the window pane.

3. The device (1) according to one of the preceding claims, characterized in that, The at least one ultraviolet light source (23a) is arranged on the circuit board, wherein the circuit board (22) is surrounded by a housing (21) and can be connected to the on-board electrical network of the motor vehicle (K) via a plug connection device (24).

4. The device (1) according to claim 3, characterized in that , the optical module (20) is optically coupled to the window panes (10, 10') via an optical conductor (25).

5. The device (1) according to claim 3, characterized in that, There is at least one light source (23b) capable of emitting visible light (L2), wherein the at least one light source (23b) capable of emitting visible light (L2) is also part of an optical module (20), which has at least one circuit board (22), on which the at least one light source (23b) capable of emitting visible light (L2) is arranged, wherein the circuit board (22) is surrounded by a housing (21), which can be connected to the on-vehicle electrical network of a motor vehicle (K) by means of a plug-in connection device (24).

6. The device (1) according to claim 5, characterized in that , the optical module (20) is optically coupled to the window glass (10, 10') by means of an optical conductor (25).

7. The device (1) according to claim 5, characterized in that, The optical module (20) comprising the at least one ultraviolet light source (23a) is the same optical module as the optical module comprising the at least one light source (23b) capable of emitting visible light (L2).

8. The device (1) according to claim 7, characterized in that , the optical module (20) is optically coupled to the window glass (10, 10') by means of an optical conductor (25), wherein the optical conductor (25) has two light-incident surfaces (25a, 25b), one of which (25a) is assigned to the at least one ultraviolet light source (23a) and the other of which (25b) is assigned to the at least one light source (23b) capable of emitting visible light (L2), and wherein the light-incident surfaces (25a, 25b) merge into a common light-emitting surface (25c).

9. A motor vehicle (K) having at least one device (1) for disinfection, characterized in that An apparatus (1) according to one of the preceding claims 1 to 8 is provided.

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