DE102018132352A1 - Lighting device for a vehicle, in particular for a motor vehicle, and vehicle with at least one such lighting device - Google Patents

Abstract

The invention relates to a device for a lighting device (1) for a vehicle, with a housing (2) which has at least one outlet opening (3) for the lighting device (1) in the housing (2) and the outlet opening (3) the housing (2) has illuminating light emerging from its surroundings (4), and with at least one structure (7) arranged in the housing (2), which in the completely manufactured state of the lighting device (1) differs from one in the surroundings (4) the person with the eyes is visually perceivable through the outlet opening (3), the structure (7) having phosphorus at least in a partial area; and the lighting device (1) has at least one light source (8) which is designed to emit light and thereby to irradiate at least the partial area arranged in the housing (2) with the light, so that the phosphor via the outlet opening (3) illuminating light emerging from the housing (2) at its surroundings (4) can be generated in the housing (2).

Description

The invention relates to a lighting device for a vehicle, in particular for a motor vehicle, according to the preamble of claim 1. Furthermore, the invention relates to a vehicle, in particular a motor vehicle, with at least one such lighting device.

The WO 2014/121314 A1 discloses a method for generating a predetermined light distribution using a motor vehicle headlight on a road. In the method, at least one modulated laser beam is directed onto a light conversion means via a pivotable micromirror. Furthermore, a luminous image generated on the light conversion means is projected onto the road.

In addition, the EP 2 461 092 A2 a vehicle light which has a light source. The light source comprises a light-emitting semiconductor element. Furthermore, the vehicle light comprises a wavelength conversion element with a phosphor. The phosphor is designed to receive excitation light which is emitted by the light-emitting semiconductor element. As a result, the phosphor emits visible light. It is also from the WO 2018/095653 A1 a LARP system (LARP - Laser Activated Remote Phosphor) is known.

The object of the present invention is to provide a lighting device for a vehicle and such a vehicle, so that a particularly advantageous illumination of the surroundings of the vehicle can be achieved by means of the lighting device.

This object is achieved by a lighting device with the features of claim 1 and by a vehicle with the features of claim 10. Advantageous embodiments of the invention are the subject of the dependent claims.

A first aspect of the invention relates to a lighting device, also referred to as a lamp or lighting device, for a vehicle, which is preferably designed as a motor vehicle, in particular as a motor vehicle and particularly preferably as a passenger car. The lighting device comprises a housing which has at least one outlet opening for light provided in the housing by means of the lighting device and emerging from the housing via the outlet opening and also referred to as illumination light. In other words, illuminating light which is provided or generated in the housing by means of the lighting device can exit the housing via the outlet opening and thereby reach the surroundings of the housing and thus the surroundings of the vehicle, as a result of which, for example, at least a part of the surroundings by means of the Illumination light which penetrates the outlet opening and thus exits the housing via the outlet opening can be illuminated. The illuminating light emerging from the housing via the outlet opening can, for example, at least partially fall onto at least part of an outer skin of the vehicle and / or onto a floor or onto a roadway, the vehicle standing for example on the floor or on the roadway or along the floor or drives along the road. In this way, for example, the vehicle can be visually perceived by people in the vicinity of the vehicle in the dark.

The lighting device also has at least one structure arranged in the housing, which is connected, for example indirectly, in particular directly, to the housing. As a result, for example, the housing and the structure form a structural unit or a module, and the lighting device can be the structural unit or the module. As a result, the lighting device can be handled easily and thus installed in a time-saving and cost-effective manner. The structure, which can also be referred to as a support or support element, for example, can be visually perceived by a person who is in the vicinity with his eyes through the outlet opening in the completely manufactured state of the lighting device. In other words, the structure is a visible structure that can be seen and thus viewed by a person who is in the surroundings via the outlet opening, that is to say through the outlet opening. In other words, a person who is in the vicinity of the lighting device can look through the outlet opening, also referred to as the passage opening, with his eyes and thereby perceive the structure optically, that is, see it. The feature that the structure can be visually perceived by the person when the lighting device is completely manufactured means that the lighting device does not have to be disassembled or disassembled in order to be able to visually perceive the structure through the outlet opening, but rather the A person who is in the vicinity can look through the outlet opening with his eyes and thereby visually perceive the structure through the opening, while the lighting device is completely or completely manufactured. The structure is thus optically in the completely manufactured state of the lighting device perceptible visual element, which can define the so-called design of the lighting device, that is to say its external optical impression, or at least with certain ones. The housing has, for example, a width running in the vehicle transverse direction in the installed position of the lighting device and a height running in the vehicle vertical direction in the installed position of the lighting device, the lighting device assuming its installation position in the completely manufactured state of the vehicle. In this case, the structure extends, for example, in relation to the installation position in the transverse direction of the vehicle over more than half the width of the housing and / or in the vertical direction of the vehicle over more than half the height of the housing.

In order to be able to illuminate the surroundings or the vehicle particularly advantageously by means of the lighting device, so that the lighting device and the vehicle can be identified particularly well via this, in particular even in the dark, it is provided according to the invention that the structure has phosphorus at least in a partial area. The partial area is at least part of the structure, so that the partial area in the completely manufactured state of the lighting device can be visually perceived by the person who is in the vicinity with his eyes through the exit opening.

The lighting device also has at least one light source, which can be designed, for example, as a blue LED (light-emitting diode). The blue LED can provide blue light. Furthermore, it is conceivable that the light source is designed as a UV light source (UV - ultraviolet), so that the light source can be designed, for example, to provide UV light, that is to say ultraviolet light. The light source, for example in the form of an LED, is arranged, for example, at least partially, in particular at least predominantly or completely, in the housing. The LED is a light-emitting semiconductor element or a semiconductor element designed to emit or emit blue light. In other words, the light source, in particular the blue LED, is designed to emit light, in particular blue light, in the housing, for example, and thereby at least the partial region arranged in the housing with the light emitted by the light source, in particular blue light or UV light to irradiate. In other words, blue light can be emitted or provided in the housing by means of the blue LED. The light provided or emitted by means of the light source can irradiate at least the partial area in the housing, that is to say fall onto the partial area, as a result of which the illuminating light emerging from the housing through the outlet opening and also referred to as emission light can be generated. In other words, by irradiating the partial area with the light provided by the light source, the phosphor or the partial area is activated, that is to say made to glow. The irradiation of the partial area or the phosphor with the light provided by the light source thus results in the aforementioned illuminating light, which penetrates the outlet opening and thereby exits the housing via the outlet opening and enters the surroundings of the lighting device. For example, by irradiating the partial area or the phosphor with the light, the phosphor or the partial area emits the so-called emission light, which for example can have a different wavelength than the light provided by the light source. The emission light (illuminating light) is, for example, white light which is provided or emitted by the partial area in the housing and can, for example, pass through the outlet opening and thereby exit the housing and its surroundings. The emission light is also referred to as reflection light, since the emission light results from the light emitted by the light source in such a way that the partial area or the phosphor provides the emission light by irradiating the partial area or the phosphor with the light. The emission light is thus an illuminating light resulting from the light or from the irradiation of the phosphor or the partial area.

The background of the invention is in particular that lights such as, for example, rear lights of a vehicle are a distinctive feature and are generally used to be able to identify a brand or the manufacturer of the vehicle on the one hand and to be able to illuminate the surroundings particularly advantageously on the other hand. It is correspondingly advantageous to design the respective lamp in such a way that the lamp and thus the vehicle can be optically recognized particularly advantageously in the dark. Through the use of light sources such as LEDs, extensive possibilities have arisen to be able to design luminaires advantageously or according to requirements.

Usually, a lighting device designed, for example, as a rear light can comprise one or more light bars, which are also referred to as tail light bars. A typical, in particular brand-typical, tail light signature can thereby be generated. From a technical point of view, light, for example, which is provided by means of one or more LEDs, is here in at least one or more light guides, intermediate light panes and / or reflectors coupled in, in particular with the aim of generating the most homogeneous, valuable and iconic light functions possible. The design of the light guides, intermediate light panes and reflectors and thus the design of a luminous structure, which is illuminated or made to glow by coupling the light, is a very complex task, in which the corresponding freedom of design is often severely restricted. It is therefore a constant effort to provide new components and technologies with great design freedom, which can now be made possible by the invention.

According to the invention, the structure comprising phosphorus, at least in the partial area, can be activated particularly advantageously by the light and thus by means of the light source, that is to say made it glow. As a result, the structure, which is, for example, highly complex or has a highly complex geometry, can be made to glow particularly uniformly or at least substantially homogeneously, in particular when an at least predominant part of the structure or the entire structure has phosphorus or is provided with phosphorus. The feature that at least a predominant part of the structure has phosphorus means that at least more than half of the structure or a surface or a volume of the structure has phosphorus which can be irradiated with the light. Since the structure or the portion provided with the phosphor can be visually perceived by people in the vicinity of the lighting device through the outlet opening, the light resulting from the irradiation of the phosphor with the light can, for example, at least essentially directly, that means without, in particular further, deflection, starting from the partial area or from the structure, penetrating the outlet opening and thus stepping up to the surroundings of the lighting device. This enables particularly advantageous illumination of the surroundings. Furthermore, the structure itself can be illuminated particularly advantageously, so that a particularly good optical impression of the lighting device can be created.

In conventional solutions, it is usually provided that light emitted by phosphorus, which results, for example, from irradiation of the respective phosphorus with light, is deflected at least once or usually several times before the light emitted by the phosphorus finally emerges from the lighting device in its surroundings. In contrast, it is provided according to the invention that the light which is emitted by the phosphor and which results from the irradiation of the phosphor with the light, passes directly from the partial area, that is to say without being deflected, through the passage opening and thus reaches the surroundings of the lighting device . In other words, the light emitted by the phosphor is not deflected on its way from the partial area through the passage opening to the surroundings of the lighting device.

The invention enables the surroundings of the lighting device to be illuminated in a particularly advantageous and in particular cost-effective manner since, for example, it is possible to dispense with red LEDs conventionally used as well as light guides, cooling fins and circuit boards conventionally used.

If, for example, several, that is to say at least two or more than two, light sources such as blue LEDs are used to illuminate the structure or the partial area, the number of light sources used, in particular blue LEDs, can be used in contrast to those conventionally used Red LEDs are kept particularly low, which means that the number of parts, the weight and the cost of the lighting device can be kept in a particularly low frame. The structure itself or its geometry can be designed in a particularly needs-based manner, so that a particularly advantageous design language can be represented. The design language can be used particularly advantageously for illuminating the surroundings and / or for brand identification. In particular, a slightly mystical glow can be generated by irradiating or illuminating the structure, so that a particularly high-quality impression can be created. In a cold state of the lighting device or shortly or immediately after the initially deactivated blue LED is activated, for example the blue LED and / or the structure are initially still invisible, in order then to appear from nowhere a short time after the activation, also referred to as switching on. In this way, a particularly advantageous lighting and optical impression of the lighting device can be created.

In an advantageous embodiment of the invention, the structure is produced by a generative manufacturing process, that is, by additive manufacturing. The generative manufacturing process is preferably 3D printing, which means that the structure, in particular its geometry, can be designed in a particularly simple and needs-based manner. In particular, the generative manufacturing process can also be used to create a particularly complex geometry of the structure in a time and cost-effective manner. Under the feature that the structure is produced by a generative manufacturing process, is particularly to understand that the structure is made, for example, in layers and thus layer by layer.

The environment can be illuminated particularly advantageously by appropriately designing the structure or its geometry. In a particularly advantageous embodiment of the invention, the partial area has at least two struts of the structure which are mechanically connected to one another at at least one node and extend at an angle, that is to say obliquely or perpendicularly, to one another, the struts per se preferably being inherently rigid and being dimensionally stable. The structure is preferably inherently rigid or dimensionally stable. This means that the struts have the phosphorus and can thus be activated by the blue light and can thus be made to glow, as a result of which a particularly advantageous glow of the structure itself and particularly advantageous illumination of the surroundings can be realized.

It has been shown to be particularly advantageous if the struts themselves run straight. Starting from the junction, the struts extend straight away from the junction, for example, so that, for example, a truss structure of the partial area or the structure can be created. This enables particularly advantageous lighting of the surroundings to be represented.

In order to be able to illuminate the surroundings particularly advantageously, it is provided in a further embodiment of the invention that the partial area is designed to conduct light. For example, the partial area is translucent.

A further embodiment is characterized in that the lighting device has at least one second light source, which is provided in addition to the light source and by means of which light, in particular white light or red light or yellow light, can be coupled into the partial area. Due to the fact that the partial area is designed as a light guide, the light coupled into the partial area can be guided or guided in a targeted manner by means of the partial area and can thus be distributed in the partial area, in particular over a large area. If, for example, the second light source, which can be designed as a second LED, couples light into the partial region, that is to say it is fed in, while there is no irradiation or illumination of the phosphor caused by the first light source, the person in the environment can optically perceive the partial area, but not the phosphor or a form or phosphor structure formed by the phosphor. In other words, the light guide or the partial area is illuminated so that the partial area is visible, but the phosphor or the phosphor structure or the shape remains invisible to the person, since the phosphor structure is not illuminated by the first light source and therefore the provision of the illuminating light is omitted.

If, for example, the first light source is then activated while the second light source remains activated, so that both the first light source and the second light source are activated at the same time, light provided by the second light source is simultaneously coupled into the partial area and the phosphor or the phosphor structure is also incorporated illuminated by the light provided by the first light source. As a result, the phosphor provides the illuminating light, while, for example, the light coupled into the partial area emerges from the partial area. The person can thus simultaneously perceive the illuminating light and thus the phosphor structure and the light which is coupled out from the partial area. The phosphor structure or its visual perceptibility can thus be switched on and off by simply activating and deactivating the first light source. The illuminating light is preferably light that can be perceived by the human eye, in particular white light.

In a further embodiment of the invention, it is provided that at least one further partial region, for example which is translucent and designed to guide light, is connected to the partial region in which the structure has the phosphorus and is free of phosphorus. The previous and following remarks on the first sub-area can easily be transferred to the other sub-area and vice versa.

It has been shown to be particularly advantageous if the lighting device has at least one additional light source that is provided in addition to the light source and by means of which light, in particular white light or red light or yellow light, can be coupled into the further partial area. The previous and following explanations regarding the second light source can also be readily transferred to the other light source and vice versa. By using the light sources, it is possible to activate and deactivate the phosphor structure or its optical perceptibility as required and thus to be able to switch on or off to the respective subarea, so that a particularly advantageous illumination can be represented.

In order to be able to provide the structure with the phosphorus in a particularly advantageous manner and thus to be able to illuminate the surroundings particularly advantageously, it is in Another embodiment of the invention provides that the structure is formed from a plastic.

Another embodiment is characterized in that the structure has a base body. The base body is formed, for example, from the plastic mentioned above. Alternatively or additionally, the base body itself can be produced by the additive manufacturing process.

It has proven to be particularly advantageous if the base body is coated with the phosphor at least in the partial area. This is to be understood in particular to mean that the phosphor or a layer comprising at least the phosphor is applied to the base body or to a surface of the base body. The base body has, for example, the previously mentioned struts or the framework structure. By applying the phosphor to the base body, the phosphor can advantageously follow the base body or a geometry of the base body, so that even complex geometries of the structure can be produced simply and inexpensively. As a result, the structure can be activated particularly advantageously and thus made to glow. In the case of a method for producing the lighting device, for example the base body is first produced, in particular by the additive manufacturing method. After the production of the base body, the base body is coated at least in the partial area, in particular at least predominantly or completely, with the phosphor or with the layer having at least the phosphor. The base body can be coated with the phosphor by dipping, painting, printing, tampon printing or tampon printing and / or in another way.

It has also proven to be particularly advantageous if the phosphorus, in particular completely, is received in the base body. This means that the phosphor is not or not only applied to the base body, but the phosphor is contained in the base body and thus part of the base body. The base body is formed, for example, from a material, which material can be the aforementioned plastic. The material is initially liquid, for example, and is introduced into a mold in the liquid state, by means of which the base body is shaped. The initially liquid material then solidifies, as a result of which the inherently rigid base body or structure is produced. The material itself includes the phosphor or the phosphor is contained in the material or is part of the material. For example, the material is produced by injection molding, that is to say by an injection molding process, the material being in particular the aforementioned plastic. The phosphor is mixed with the material, in particular with the plastic, and is, for example, introduced, in particular injected, into the mold together with the plastic. Furthermore, it is conceivable that the injection molding is carried out as a multi-component injection molding. Here, for example, a material from which the base body is produced is first introduced, in particular injected, into the aforementioned shape. The material can be the aforementioned plastic and / or the material is introduced into the mold in a liquid state, for example. After the material has been introduced, in particular injected, into the mold, the phosphorus is introduced into the mold, in particular injected. As a result, the base body is produced, for example, in the mold and by means of the mold. By introducing the phosphor into the mold, the base body is provided with the phosphor, in particular coated. The material is thus, for example, a first component and the phosphorus is a second component, so that the structure is produced from the components, in particular in the context of multi-component injection molding. As a result, the structure can also be produced at low cost and in particular if the structure has a complex geometry.

In order to be able to illuminate the surroundings in a particularly advantageous manner, it is provided in a further embodiment of the invention that the passage opening is covered by a red pane which is permeable to the light emerging from the housing through the outlet opening to its surroundings. If, for example, the emission light described above is white light which is generated in the housing in that the phosphor provides or emits the emission light which results from irradiating the phosphor with the blue light in the housing. The white light can penetrate the red cover plate and is subsequently perceived by the people in the vicinity of the lighting device as red light, so that the structure glows red for the person. As a result, the lighting device and thus the vehicle are particularly optically perceptible.

In order to be able to illuminate the vehicle particularly well even in the dark, it is provided in a further embodiment of the invention that the lighting device is designed as a rear light or as a headlight for the vehicle. Furthermore, it is conceivable that the lighting device is designed as an interior light. The interior light is also referred to as an interior light. This means that when the vehicle is fully manufactured, the surroundings of the Lighting device is the interior of the vehicle, so that the interior of the vehicle can be illuminated particularly advantageously by means of the lighting device.

A second aspect of the invention relates to a vehicle, which is preferably designed as a motor vehicle. The motor vehicle is designed, for example, as a motor vehicle, in particular as a passenger car. In order to be able to illuminate the motor vehicle or its surroundings particularly advantageously, the vehicle according to the invention comprises at least one lighting device according to the invention in accordance with the first aspect of the invention. Advantages and advantageous configurations of the first aspect of the invention are to be regarded as advantages and advantageous configurations of the second aspect of the invention and vice versa.

• - große Gestaltungsfreiheiten in der Gestaltung der Struktur, insbesondere deren Geometrie
• - Generierung neuer Formensprachen und Lichterlebnisse
• - Eine aufwändige Auslegung und komplexe Berechnungen von herkömmlicherweise zum Einsatz kommenden Lichtleitern und Reflektoren entfällt
• - Kosten- und Gewichtsreduzierung
• - Bauraumvorteile gegenüber herkömmlichen Leuchteinrichtungen

In particular, the following advantages can be realized by the invention:

• - great freedom of design in the design of the structure, especially its geometry
• - Generation of new design languages and lighting experiences
• - A complex design and complex calculations of conventionally used light guides and reflectors is not necessary
• - Cost and weight reduction
• - Space advantages compared to conventional lighting devices

• 1 ausschnittsweise eine schematisch Vorderansicht einer erfindungsgemäße Leuchteinrichtung gemäß einer ersten Ausführungsform; und
• 2 ausschnittsweise eine schematisch Vorderansicht der Leuchteinrichtung gemäß einer zweiten Ausführungsform.

Further details of the invention result from the following description of preferred exemplary embodiments with the associated drawing. It shows:

• 1 excerpts a schematic front view of a lighting device according to the invention according to a first embodiment; and
• 2nd excerpts a schematic front view of the lighting device according to a second embodiment.

In the figures, identical or functionally identical elements are provided with the same reference symbols.

1 shows a detail in a schematic front view of a lighting device designated as a whole for a vehicle. This means that the vehicle in its fully manufactured state has the lighting device 1 has, wherein the vehicle can preferably be designed as a motor vehicle, in particular as a motor vehicle and thereby as a passenger car. The lighting device is in the fully manufactured state of the vehicle 1 arranged at the rear of the vehicle so that the lighting device 1 is designed as a rear light of the vehicle. Furthermore, it is conceivable that the lighting device 1 is designed as an interior light. It shows 1 a first embodiment of the lighting device 1 . The lighting device 1 has an in 1 particularly schematically illustrated housing 2nd which, for example, in itself, that is to say, is opaque and therefore opaque. The housing 2nd however, has at least or exactly one outlet opening 3rd for in the housing 2nd by means of the lighting device 1 provided or generated and via the outlet opening 3rd out of the housing 2nd in its surroundings 4th emerging light and also referred to as illuminating light. This means the light such as white light, which is in the housing 2nd is provided or generated or broadcast, the outlet opening also referred to as a passage opening 3rd penetrate and thus through the passage opening from the housing 2nd emerge and to the environment 4th kick or get. This allows at least a partial area of the environment 4th with that through the outlet opening 3rd out of the housing 2nd emerging illuminating light are illuminated.

The exit opening 3rd is, in particular completely, through a disk also referred to as a cover disk 5 covered and thus closed, the disc 5 at least indirectly, in particular directly, with the housing 2nd connected is. The disc 5 and the housing 2nd are each dimensionally stable or inherently rigid, the disc 5 - as will be explained in more detail below - is translucent. This means in particular that the disc 5 for that in the case 2nd provided or generated illuminating light is transparent.

The housing 2nd delimits a recording room 6 in which components of the lighting device 1 are at least partially included. This is also explained in more detail below. By means of at least one of the components, the aforementioned illumination light, which is designed, for example, as white light, is generated or provided, which is the exit opening 3rd penetrates and thus to the environment 4th can reach. The disc 5 is permeable to sunlight, for example, so that in the environment 4th provided sunlight the disc 5 and the exit opening 3rd penetrate and thus through the outlet opening 3rd through into the recording room 6 and thus into the housing 2nd can occur or occur.

The lighting device 1 includes one in the recording room 6 and thus in the housing 2nd arranged or recorded structure 7 which in the fully manufactured state of the lighting device 1 of yourself in the area 4th people with their eyes through the exit opening 3rd through it is visually perceptible. This means that the person with their eyes through the exit opening 3rd look through and then the structure 7 perceive optically, that is, see or look at. The structure 7 is thus not due to the respective components of the lighting device 1 to the exit opening 3rd covered, but the respective person can through the outlet opening 3rd the structure 7 at least predominantly, especially completely, visually.

Now around the environment 4th To be able to illuminate particularly advantageously, the structure has phosphorus at least in a partial area. At the in 1 shown embodiment it is preferably provided that the structure 7 is at least predominantly, in particular at least completely, provided with phosphorus.

The lighting device 1 also has light sources in the form of blue LEDs 8th on, each at least partially in the recording room 6 or in the housing 2nd can be arranged. The respective blue LED 8th is designed to emit or provide blue light and thereby at least the partial area or the structure comprising the phosphor 7 to be irradiated with the emitted blue light. This is through the outlet opening 3rd out of the housing 2nd in its surroundings 4th emerging light can be generated. In other words, the structure 7 and thus the phosphor with that from the LEDs 8th emitted blue light, the phosphor thereby provides a so-called emission light as the illuminating light. This emission light thus results from the irradiation of the phosphor with the blue light, the emission light having a different wavelength than the blue light, for example. The emission light is, for example, the aforementioned white light, which is provided by means of the phosphor and thus, for example, in the recording room 6 or in the housing 2nd provided. the structure is thus one of the aforementioned components, by means of which the white light in the housing 2nd is generated or provided. The white light that comes from the phosphor and thus from the structure 7 provided, that is broadcast, can directly, that is, without being deflected from the structure 7 through the outlet opening 3rd and through the pane 5 step through and thus to the environment 4th reach. This means that the light coming from the structure 7 in the housing 2nd is deployed on its way from the structure 7 to the exit opening 3rd and through the outlet opening 3rd is not redirected. By irradiating the structure 7 and the phosphor with the blue light activates the phosphor, causing the phosphor and thus the structure 7 is lit up. The respective, yourself in the area 4th the person who is stopping can thus use the luminous structure 7 through the outlet opening 3rd perceive it directly optically, so that a particularly advantageous external appearance of the lighting device 1 can be created. In addition, the environment 4th are particularly advantageously illuminated so that the vehicle can be recognized particularly well even in the dark.

Out 1 is recognizable that the structure 7 at the in 1 First embodiment shown has a complex geometry and has a framework structure. The structure 7 is a three-dimensional structure. For example, the structure 7 in the first embodiment a, in particular three-dimensional, base body 9 , which is produced, for example, by the aforementioned generative manufacturing method, in particular by 3D printing. The basic body 9 is coated with the phosphor. In particular, the base body can be coated with a layer comprising at least or exclusively the phosphorus, so that the layer is applied, for example, to the base body, in particular to a surface of the base body. So the structure includes 7 the basic body 9 and the one on the main body 9 applied layer, which is also referred to as a coating. By making the structure 7 or the base body 9 A generative manufacturing process can also create particularly complex geometries of the structure 7 can be realized in a timely and cost-effective manner.

Out 1 is particularly recognizable that the structure 7 or the framework structure a plurality of spaced nodes 10th from each node 10th extend several struts 11 the framework structure and thus the structure 7 , in particular star-shaped, away, the respective strut 11 , in particular over its complete extension, has a straight course. The respective struts 11 are thus above the respective node 10th mechanically connected. The struts are preferred 11 integrally formed with each other and / or the struts 11 are each in one piece with the nodes 10th formed so that preferably the structure 7 is formed in one piece. The base body is preferably 9 or the structure 7 formed from a plastic so that the weight of the lighting device 1 can be kept in a particularly small frame. This can also result in a particularly complex geometry of the structure 7 are shown particularly easily.

The basic body 9 is coated with the layer, for example, during or during the additive manufacturing process and / or the phosphor is in the base body 9 contain. The basic body 9 is produced, for example, from an initially liquid material, the liquid material being mixed with the phosphorus or the phosphorus being part of the liquid material. For example, the main body 9 made of granules or granular matter, the granular matter already having the phosphorus, the granular matter is melted, for example, in the context of the additive manufacturing process, whereby a melt is formed, from which the base body 9 or the structure is produced, in particular printed, is. The previous and following explanations of the basic body 9 can also easily on the structure 7 be transmitted yourself and vice versa. Alternatively, it is conceivable that the structure 7 or the basic body 9 is made by injection molding. Manufacturing processes such as generative manufacturing processes and / or injection molding can be used to produce simple panels, housings and intermediate light panes up to highly complex components, which can be made to glow in an attractive manner by using the phosphor and by irradiating the phosphor with the blue light. The design freedom with regard to the geometry of the base body 9 there are hardly any limits. Light staging by targeted control of the blue LEDs can also be implemented very effectively.

In the first embodiment, the washer 5 for what is also referred to as emission light and in the recording room 6 generated illuminating light permeable, the cover 5 is red. That in the recording room 6 provided, preferably white illumination light penetrates the pane 5 and thus occurs as in the area 4th red light that can be perceived by the human eye to the surroundings 4th .

2nd shows a section of a second embodiment of the lighting device 1 . Basically, it is conceivable that the basic body 9 is a surface element and thus has an at least substantially flat and / or flat surface which is provided with the layer or with the phosphor, in particular coated. The phosphor or the layer forms on and / or in the structure 7 for example one off 2nd recognizable and in the present case designed as a honeycomb structure 12 . In this way, particularly advantageous lighting can be ensured. Are the LEDs 8th deactivated, the phosphor structure is or remains 12 for those in the area 4th stopping person invisible because of the phosphor structure 12 not with that from the LEDs 8th available light is illuminated. By activating the LEDs 8th so that these provide the present blue light, the phosphor structure 12 with that from the LEDs 8th provided light illuminates. As a result, the phosphorus and thus the phosphor structure 12 the emission light ready, which is visually perceptible by the person. As a result, it can be in the area 4th person stopping the phosphor structure 12 perceive visually.

Reference symbol list

1

Lighting device

2nd

casing

3rd

Outlet opening

4th

Surroundings

5

disc

6

Recording room

7

structure

8th

Light source

9

Basic body

10th

Node

11

Strive

12

Phosphor structure

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2014/121314 A1 [0002]
• EP 2461092 A2 [0003]
• WO 2018/095653 A1 [0003]

Claims (15)

Lighting device (1) for a vehicle, with a housing (2) which has at least one outlet opening (3) for the housing (2) provided by the lighting device (1) and via the outlet opening (3) from the housing (2) the surroundings (4) of which have illuminating light emerging, and with at least one structure (7) arranged in the housing (2), which in the completely manufactured state of the lighting device (1) is passed through by a person in the surroundings (4) with their eyes the outlet opening (3) is visually perceptible, characterized in that - the structure (7) has phosphorus at least in a partial area; and - the lighting device (1) has at least one light source (8) which is designed to emit light and thereby to irradiate at least the partial area arranged in the housing (2) with the light, as a result of which the phosphor via the outlet opening (3 ) illuminating light emerging from the housing (2) at its surroundings (4) can be generated in the housing (2). Lighting device (1) after Claim 1 , characterized in that the structure (7) is produced by a generative manufacturing process. Lighting device (1) after Claim 1 or 2nd , characterized in that the partial area has at least two struts (11) of the structure (7) which are mechanically connected to one another at at least one node (10) and extend at an angle to one another. Lighting device (1) after Claim 3 , characterized in that the struts (11) each run straight. Lighting device (1) according to any one of the preceding claims, characterized in that the partial area is designed to conduct light. Lighting device after Claim 5 , characterized in that the lighting device (1) has at least one second light source which is provided in addition to the light source and by means of which light, in particular white light or red light or yellow light, can be coupled into the partial area. Lighting device (1) according to one of the preceding claims, characterized in that at least one further partial region, which is free of phosphorus and is designed for guiding light, adjoins the partial region in which the structure (7) has the phosphor. Lighting device after Claim 7 , characterized in that the lighting device (1) has at least one additional light source which is provided in addition to the light source and by means of which light, in particular white light or red light or yellow light, can be coupled into the further partial area. Lighting device (1) according to one of the preceding claims, characterized in that the structure (7) is formed from a plastic. Lighting device (1) according to one of the preceding claims, characterized in that the structure (7) has a base body (9). Lighting device (1) after Claim 10 , characterized in that the base body (9) is coated with the phosphorus at least in the partial area. Lighting device (1) after Claim 10 , characterized in that the phosphorus, in particular completely, is received in the base body (9). Lighting device (1) according to one of the preceding claims, characterized in that the passage opening (3) through a red and for the illuminating light emerging through the outlet opening (3) from the housing (2) at its surroundings (4) transparent (5) is covered. Lighting device (1) according to one of the preceding claims, characterized in that the lighting device (1) is designed as a rear light or as an interior light for the vehicle. Vehicle, with at least one lighting device (1) according to one of the preceding claims.

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