EP4313656A1 - Dispositif d'éclairage pour véhicule à moteur - Google Patents

Dispositif d'éclairage pour véhicule à moteur

Info

Publication number
EP4313656A1
EP4313656A1 EP22715009.1A EP22715009A EP4313656A1 EP 4313656 A1 EP4313656 A1 EP 4313656A1 EP 22715009 A EP22715009 A EP 22715009A EP 4313656 A1 EP4313656 A1 EP 4313656A1
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
area
decoupling
design
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22715009.1A
Other languages
German (de)
English (en)
Inventor
Alexandr ZAVIYALOV
Michael Windl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lisa Draexlmaier GmbH
Original Assignee
Lisa Draexlmaier GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lisa Draexlmaier GmbH filed Critical Lisa Draexlmaier GmbH
Publication of EP4313656A1 publication Critical patent/EP4313656A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/283—Steering wheels; Gear levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B60K35/22—Display screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/80—Circuits; Control arrangements
    • B60Q3/82—Switches specially adapted for vehicle interior lighting, e.g. switching by tilting the lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces of the light guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/143—Touch sensitive instrument input devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/332—Light emitting diodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/20—Optical features of instruments
    • B60K2360/33—Illumination features
    • B60K2360/336—Light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/60—Structural details of dashboards or instruments
    • B60K2360/68—Features of instruments
    • B60K2360/682—Arrangements to cover or hide instruments

Definitions

  • the invention relates to a lighting device which has at least one light-conducting body with a light decoupling area.
  • Light guides with light decoupling elements are already known from the prior art.
  • light guides are used in the interior and/or as part of an exterior lighting system in motor vehicles, for example for ambient lighting or for illuminating control elements.
  • Light decoupling elements are used to decouple at least part of the light coupled into the light guide from the light guide, which should ensure a pleasant, homogeneously distributed light using other optical elements (e.g. white reflectors, diffusers, diffusers, etc.).
  • diffusing screens are arranged between an observer of the light guide and the light guide.
  • a diffusing screen fulfills the task of preventing a direct, sharp or true-to-image detection of the light guide arranged below the diffusing screen or individual decoupling elements of the same.
  • a diffuser has the task of enlarging and deflecting a main direction of the light coupled out of the light guide, which is typically only about 40 degrees relative to an exit surface of the light guide, to a viewing area that is easily recognizable from typical observer positions . This viewing range is usually in a range of 65 degrees to 90 degrees relative to a light exit surface of the light guide.
  • the scattering effect of the diffuser is thus used to deflect light beams coupled into or entering the light guide in such a way that the viewer sees the light from the typical viewing positions as homogeneous or even light.
  • Diffusers also convert the mostly heterogeneous light/illuminated image of conventional light guides into a homogeneous light/illuminated image.
  • diffusers are milky or only diffusely translucent and consequently not transparent in the image. This means that contours (i.e. structures, shapes, symbols, characters, etc.), which are arranged below the conventional light guide and thus below the lens, can be seen using the physiological - i.e.
  • the contours appear as diffuse shadow images with few contours. This applies both to a luminous mode of operation and to a non-luminous mode of operation of the light guide. In the non-illuminating mode of operation of the light guide, the lens appears to the viewer as an opaque, for example gray or white, object.
  • the object of the invention is to provide a lighting device in which, in a non-illuminating or deactivated operating mode, a contour covered by a light guide of the lighting device is clearly/sharp and true to image visible to a human observer without aids.
  • the aim of the invention is to use the lighting device to provide at least two appearances recognizable to a user.
  • a lighting device for a motor vehicle, in particular for an interior of a motor vehicle, in which case the motor vehicle can in particular be a passenger car.
  • the lighting device has a light guide body, which has a first outer surface designed as a useful light exit surface and a second outer surface.
  • the first outer surface or the useful light exit surface is free of a dedicated light output structure.
  • no step is taken to give the first outer surface a light-refracting and/or light-directing functionality or property for decoupling light from the light-guiding body. It can be provided that when the first outer surface is produced, a step is taken to produce a refractive and/or to remove light-directing functionality or property for decoupling light from the light-conducting body from the first outer surface.
  • the first outer surface and the second outer surface are spaced apart from one another by a thickness or thickness of the light-guiding body.
  • the light-guiding body has a light-coupling surface that is designed differently from the outer surfaces and is a further outer surface of the light-guiding body. Provision can be made here, for example, for the third outer surface or the light coupling surface to be arranged perpendicularly to the first outer surface and/or to the second outer surface.
  • the light guide body also has a light decoupling region, in which a dedicated light decoupling structure is formed on the second outer surface, which has at least one light decoupling element.
  • the light decoupling region has a multiplicity of light decoupling elements or is formed by the multiplicity of light decoupling elements.
  • the light decoupling area is designed in such a way that in a lighting operating mode - if light is coupled into the light guide body via the light coupling surface - the light decoupling area is an opaque area of the light guide body and in a non-lighting operating mode - if no light is coupled into the light guide body via the light coupling surface - the light decoupling area is a transparent area of the light guide body.
  • the degree of transparency is related to an average and healthy human observer whose human visual system is in an average Be viewing distance range to the lighting device.
  • the viewer has assumed a corresponding viewing distance of the viewing distance range, for example, by sitting as intended on a seat of the motor vehicle, for example as a driver or front passenger or (rear) passenger. Any possible adjustments to the seat are taken into account.
  • a possible viewing distance from the average viewing distance range can be 20 centimeters or more, for example.
  • the light-guiding body is transparent or opaque to the observer depends on whether the light-guiding body is operated in the non-illuminated operating mode or in the illuminated operating mode. Furthermore, an arrangement density of the light decoupling elements plays a role. With reference to the average observation distance range, the light guide body, in particular its light output structure, has a Arrangement density of the light decoupling elements that are no longer resolved as individual (light) points can be recognized in the lighting mode of operation by the human eye without tools.
  • the average physiological human visual apparatus is not capable of optically resolving the light decoupling structure sufficiently in order to distinguish a single one of the light decoupling elements from another light decoupling element of the same light decoupling structure; the light decoupling elements of the light decoupling structure appear to the human being as a continuous and, in particular, homogeneous surface.
  • the light decoupling structure of the light guide has the light decoupling elements, with the arrangement density (ratio of a number of light decoupling elements in relation to an area of the second outer surface) being selected and/or designed such that - at least during lighting operation - the human observer sees the light decoupling structure as the continuous surface perceives, since a single one of the light decoupling elements is not recognizable alone.
  • the light decoupling structure can have, for example, a regular or irregular grid of light decoupling elements. For example, it is conceivable that 9, 16, 25, etc., light decoupling elements are formed per square millimeter.
  • the light decoupling elements can be arranged equidistantly or at irregular distances from one another in the following way: 3 x 3, 4 x 4, 5 x 5, etc.
  • Other arrangements of the light decoupling elements are also conceivable, for example four light decoupling elements located at the corners of a square and one which lies in the middle of the square, so that in this case there are 5 light decoupling elements per square millimeter.
  • Arrangements are also conceivable in which the light decoupling elements are arranged in an odd manner, for example in accordance with an odd curve, in accordance with a circle, etc.
  • “Transparent” is to be understood here in such a way that the human observer can clearly recognize a structure, in particular a design element, arranged underneath the light-conducting body. Nevertheless, due to the light decoupling structure, which is arranged in the viewing direction between the viewer's eyes and the structure or the design element, a slight veil can be perceived through which the viewer recognizes the structure. So the veil does not contradict a fidelity to the image or the edges of the design element that the viewer recognizes. In other words, the light decoupling structure or the light decoupling elements are designed in such a way that the veil that may accompany it does not hinder the clear recognition of the design element too much.
  • the lighting device there is now the possibility of a first appearance of the lighting device corresponding to the lighting operating mode (when light is coupled into the light-conducting body via the light-coupling surface).
  • the non-luminous operating mode when no light is coupled via the light coupling surface into the light-guiding body
  • the first appearance of the lighting device corresponding to the light operating mode is represented by at least the light decoupling region of the lighting device or the light-conducting body appearing opaque.
  • the lighting device in the non-luminous operating mode (which can also be called the cold state) the lighting device has the second appearance, with at least the light decoupling region of the lighting device or the light guide body appearing to be transparent.
  • the first appearance of the lighting device or the second appearance of the lighting device can be activated, depending on which of the operating modes the lighting device is switched to.
  • the lighting device is thus designed in such a way that a contour which is arranged underneath the light-conducting body can be clearly seen by the human observer using the physiological human visual apparatus without any aids external to the body.
  • the lighting device is free of a light scattering element or free of a diffusing screen between the human observer and the light decoupling region.
  • the desired free, clear and sharp view of the human observer through the light-guiding body to elements, structures, contours, etc., which are arranged behind the light-guiding body in the direction of vision is further favored.
  • the lighting device also has a design carrier which includes a design surface.
  • the second outer surface of the light-guiding body and the design surface of the design carrier face one another.
  • a design element or a multiplicity of design elements is arranged or formed on the design surface, so that the respective design element and the second outer surface of the light guide body face each other.
  • the design carrier is arranged below the light-guiding body, as a result of which the design element or design elements is or are arranged below the light-guiding body.
  • the lighting operating mode of the lighting device that a part of the design carrier covered by the light decoupling area, in particular a part of the design surface, is not visible to the human observer at least through the light decoupling area, whereas in the non-lighting operating mode of the lighting device that of the light decoupling area covered part of the design carrier, in particular the corresponding part of the design surface, is visible through the light decoupling area for the human viewer. Accordingly, when the lighting device is active at night, the respective design element is not fully or partially visible to the human observer due to the light-emitting light decoupling area to the extent that the corresponding design element is covered by the luminous light decoupling area.
  • the corresponding design element is visible to the human observer through the light decoupling area when the light decoupling area is not illuminated.
  • the first appearance of the lighting device is characterized in that the design carrier is not visible in the light decoupling area of the light guide body, whereas the second appearance of the lighting device is characterized in that the design carrier is visible to the human observer through the light decoupling area .
  • the design support in particular a portion of the design support that is visible through the light decoupling area when the lighting device is not in the operating mode - such as the design surface of the design support - can be a purely decorative design element, for example.
  • the design carrier can be decoratively coated as a design element in/on the part corresponding to the light decoupling area, for example the design surface, and/or can have a decorative surface structure.
  • the design carrier, in particular the design surface is provided with characters, text, numbers, symbols etc. as an alternative or in addition to the decorative function as a design element, and thus provides the human observer with corresponding information at least when the lighting device is not in operation.
  • the human observer is provided with corresponding information by the person provided with the characters Part or the corresponding design element of the design carrier is at least partially hidden in the lighting mode of operation of the lighting device for the human observer by light being coupled into the light guide body via the light coupling surface.
  • the design carrier in particular its design surface, can be designed in a wide variety of configurations, as a result of which the design carrier itself forms the design element and/or have a wide variety of design elements.
  • the design carrier is designed in any color.
  • the design carrier can be made of a correspondingly colored or dyed material, in particular it can be primary formed.
  • the design carrier can have been completely or partially coated with a corresponding color carrier as a design element.
  • the design carrier or the design surface can have been coated with a paint, in particular metallic paint, effect paint, chrome paint, etc. Here come - if necessary multiple Ches - spraying / spraying, transfer roller coating, brushing / brushing, etc. in question.
  • the design carrier can be completely or partially coated with a clear lacquer.
  • the color carrier or the design element can be designed as a foil, so that the color carrier was applied to the design carrier, for example to the design surface, in which the design carrier was foiled.
  • a desired structure can already be given to the design carrier as a design element when it is being formed, which is visible to the human observer through the luminous body when the lighting device is in the non-illuminating operating mode or during the day. So it is conceivable to form the design carrier, at least its design surface, as a visible carbon part in which the carbon fiber mesh is not coated or only coated with a clear agent. The visible carbon part is then the design element.
  • Other visible 3D structures are possible as design elements, such as a crystal and/or diamond-like visible structure, other grains, etc.
  • the design surface of the design carrier can be printed and/or painted with characters, text, numbers, symbols etc. as a design element.
  • the lighting device provides that the design carrier differs from a pragmatically designed component that has no dedicated, specific design element and is, for example, only smooth and only white. It's particular too understand that the design carrier is not an optical reflector (e.g. mirror, etc.).
  • the lighting device is designed without a design support.
  • the design carrier and consequently the design element(s) are then not part of the lighting device.
  • the lighting device in particular the light-guiding body, enables the human observer to see a structural element arranged below the light-guiding body at the installation site or the installation site of the lighting device in the non-illuminated operating mode.
  • the structural element In the luminous operating mode, the structural element is correspondingly hidden from the human observer.
  • the structural element is not part of the lighting device but, for example, part of the motor vehicle in which the lighting device is used.
  • the second outer surface and the design surface are spaced apart from one another by a distance of up to 100 millimeters.
  • the distance over which the second outer surface of the light guide body and the design surface are spaced apart from one another is 0.3 millimeters to 100 millimeters, in particular 1 millimeter to 10 millimeters. It is advantageous with such a distance that below the light-guiding body, ordered contours, in particular contours, for example the design elements of the design carrier, can be seen particularly clearly or sharply through the light coupling-out area of the light-guiding body when no light enters the light coupling surface Lichtleitkör is coupled by.
  • An optimal distance between the second outer surface and the design surface is directly related to the arrangement density of the light decoupling elements, which are described in more detail below.
  • the lower the arrangement density of the light decoupling elements the greater the distance between the second outer surface and the design carrier or the design surface can be selected, with the contour located below the light guide body still being perceived as clear or sharp for the human observer. This means that the distance between the second outer surface and the design surface can generally be selected depending on the arrangement density of the light output elements.
  • the distance between the second outer surface and the design surface along a width direction and/or along a depth direction of the light guide body or the Lighting device varies. This results in even more design options for the lighting device.
  • the lighting device has a user interaction unit which has the light decoupling area as a user interaction area.
  • the light decoupling area or the user interaction area can be a touch-sensitive button, for example a capacitive button, in which case it can then be provided in particular that the button or the light decoupling area provides a correspondingly assigned switching functionality depending on the active appearance.
  • the light decoupling area in connection with the user interaction unit, serves as a display element for the user or viewer.
  • a status, a warning, etc. can be made available to the viewer or user via the light decoupling area.
  • a particularly noticeable user interaction unit is thus provided, which is advantageously particularly reliably perceived by the user or viewer.
  • an outer contour of the light guide body has a flat shape.
  • This means - in relation to an installation position of the Lichtleitkör pers - is a width or depth of the light guide greater than a strength or thickness of the light guide.
  • the light-guiding body is cuboid, with the first outer surface and the second outer surface of the light-guiding body being planar and arranged parallel to one another.
  • the light-guiding body it is also conceivable for the light-guiding body to have an outer shape that is designed according to any desired polyhedron, in particular a prism.
  • the outer shape may be formed according to a general cylinder.
  • mixed forms with at least one prismatic part and/or at least one cylindrical part are conceivable.
  • the flat outer contour of the light-conducting body enables a particularly space-efficient lighting device, which in particular requires particularly little space depth, which means that particularly advantageous packaging, especially in automobile construction, is particularly taken into account.
  • the light-guiding body has a clear area which is delimited from the light decoupling area and is free of a light decoupling structure. This means that in the lighting operating mode of the lighting device, the light coupled into the light guide body via the light coupling surface
  • the clear area within the light-guiding body is passed on by means of total reflection in the light-guiding body and does not emerge from the light-guiding body via the clear area or in the clear area. This means that due to the clear area, the lighting device has an area that appears transparent to the viewer regardless of the respective active appearance. When the clear area was produced, no step was taken to give the clear area a light-refracting and/or light-guiding functionality or property for decoupling light from the light-guiding body.
  • a step is taken to remove a light-refracting and/or light-directing functionality or property for decoupling light from the light-conducting body from the clear area.
  • a step is taken to remove a light-refracting and/or light-directing functionality or property for decoupling light from the light-conducting body from the clear area.
  • the light decoupling area and the clear area are sharply delimited from one another, at least in areas.
  • the light decoupling area and the clear area merge into one another at least in some areas, ie have no sharp boundary between them. If the light decoupling area or light decoupling areas and the clear area or clear areas are sharply delimited from one another, it is conceivable, for example, that the respective light decoupling area appears to the user as a touch-sensitive touch area when the lighting device is in the luminous operating mode.
  • the light decoupling area and the clear area merge smoothly into one another, for example by an arrangement density of the light decoupling elements decreasing starting from an edge of the lighting device in the direction of an interior of the lighting device, this results in a particularly advantageous ambient lighting and/or contour lighting of the lighting element.
  • the visible or non-visible part of the design element or design elements covered by the light decoupling structure follows a course of the smooth transition between the clear area and the light decoupling area.
  • a transparent cover element is provided which is arranged on the side of the first outer surface facing the light-guiding body and is free of a dedicated light output structure. That transparent cover element is therefore ideally designed to be completely transparent or completely true to the image and forms, for example, a protective element for the light-guiding body of the lighting device.
  • the cover element was produced, no step was taken to give the cover element a light-refracting and/or light-directing, ie no light-scattering, functionality or property. Provision can be made for a step to be taken during the manufacture of the covering element in order to remove a light-scattering functionality or property from the covering element.
  • the lighting device is touched by the viewer or user, for example as part of a user interaction, this effectively prevents the user or viewer from touching the light guide body directly and consequently possibly damaging it.
  • An optional tinting of the covering element does not prevent the transparency of the covering element, which is true to the image.
  • the degree of tinting is selected in particular in such a way that the human observer can recognize the contours of the design element, ie the design surface of the design carrier, at least in the non-illuminated operating mode or when the daytime appearance is active. This makes it possible, for example, for the cover element to appear as a darkened but transparent “black panel” in the daytime.
  • the lighting device can generally have a large number of light-guiding bodies, which are arranged next to one another in a common plane, for example.
  • the transparent cover element can cover the light guides of the lighting device in one piece, which effectively prevents that dirt gets into the lighting device in an undesired way.
  • the design carrier has the cover element.
  • the cover element and the design carrier can be connected to one another in a non-positive, positive and/or material connection, for example glued.
  • the cover element and the design carrier can be formed in one piece with one another.
  • the design carrier and the cover element can be made of different materials.
  • the cover element and/or the design carrier can be produced, for example, by means of an additive manufacturing process (e.g. 3D printing).
  • the respective light output element viewed in cross section, has at least one part-circular tip area, a first linear area connected to the part-circular tip area and a second linear area connected to the first linear area. Viewed three-dimensionally, this means, for example, that the respective tip region of the respective light output element has the shape of a spherical cap or spherical cap.
  • a decoupling of the light is achieved overall, which approaches in an angle range of 65 degrees to 90 degrees with respect to the first outer surface of the light guide body.
  • a light decoupling element designed in this way supports the avoidance of an opaque or milky light scattering element, such as a diffusing screen.
  • the light decoupling structure has at least one light decoupling element, which means that the light decoupling structure has, in particular, a large number of light decoupling elements that can be arranged according to a regular pattern and/or chaotically to one another.
  • a radius of the respective part-circular tip area is in particular in a range between 0.03 millimeters and 0.3 millimeters, for example approximately 0.1 millimeters.
  • the light decoupling elements of the light decoupling structure are not formed uniformly, but rather have different shapes.
  • the distances between the light decoupling elements to be varied, for example the distances between the light decoupling elements can become smaller as the distance from a light source increases. That is, the arrangement density of the light extraction elements becomes greater.
  • the size, in particular the height of the light decoupling elements increases with increasing distance from the light source.
  • the first linear area of the respective light output element has a first slope in relation to the second outer surface of the light guide body, the second linear area of the respective light output element having a second slope that differs from the first slope.
  • a first gradient angle characterizing the first gradient, which is enclosed by the first linear region and the second outer surface of the light guide body is smaller than a second gradient angle, characterizing the second gradient, which is between the second linear region and the second outer surface of the light-guiding body is included.
  • the first Pitch angle for example, 50 degrees
  • the second pitch angle is example, 55 degrees.
  • the decoupling of light can be further optimized in comparison to a single linear region with only a single gradient.
  • the respective light decoupling element can have a third linear region with a third slope that is different from the first slope and from the second slope with respect to the second outer surface of the light-guiding body.
  • the third linear range is connected to the second linear range, and the first linear range is connected to the second linear range.
  • the second linear range is located between the first linear range and the third linear range.
  • a third gradient angle characterizing the third gradient of the third linear region, which is enclosed between the third linear region and the second outer surface of the light-guiding body is 60 degrees, for example. This means that the third slope is larger than the second slope and larger than the first slope.
  • the light decoupling from the fiber-optic element or from the light decoupling area can be optimized even further by the third linear area with a slope that differs from the second slope and the first slope, so that a light function that is as homogeneous as possible is created in the desired area.
  • the height of the first linear area is smaller than a height of the second linear area.
  • a height of the second linear area is smaller than a height of the third linear area.
  • “height” is understood as a dimension that extends perpendicularly from the second outer surface of the light-guiding body.
  • the height of the part-circular or spherical cap-shaped tip region is in a range between 0.01 millimeter and 0.05 millimeter. It can be provided in particular that the height of the first linear area is half the height of the part-circular tip area. The height of the first linear region is thus between 0.005 millimeters and 0.05 millimeters, for example.
  • the height of the second linear region may be greater than the height of the first linear region and less than the height of the part-circular crest region. In particular, the height of the second linear area is in a range between 0.01 millimeter and 0.05 millimeter.
  • the height of the third linear range can be twice as high as the height of the second linear range. In particular, the height of the third linear area is between 0.01 millimeters and 0.1 millimeters.
  • a particularly homogeneous light decoupling from the light decoupling area of the light guide body is achieved with the specified height ratios.
  • the dedicated light decoupling structure has at least one light decoupling element or a plurality of light decoupling elements, the respective light decoupling element extending from the second outer surface of the light guide body into the light guide body as a material-free area.
  • the respective light decoupling element is a blind hole which is formed into the light guide body starting from the outer surface of the light guide body. If the light-guiding body of the lighting device only has light decoupling elements protruding into the light-guiding body, this advantageously results in a flat or planar outer contour of the light-guiding body without protruding elevations.
  • the dedicated light decoupling structure can have at least one light decoupling element that protrudes outwards from the second outer surface of the light-conducting body.
  • the light decoupling structure can only have light decoupling elements that extend into the light guide body. It is also conceivable that the light decoupling structure only has light decoupling elements protruding from the outer surface. In addition, it is conceivable that the light decoupling structure has both light decoupling elements extending into the light guide body and light decoupling elements protruding from the second outer surface of the light guide body.
  • the respective light coupling element is embodied symmetrically, in particular rotationally symmetrically and/or plane-symmetrically or mirror-symmetrically, in relation to a symmetry element arranged perpendicularly to the second outer surface, for example a symmetry axis and/or a symmetry plane.
  • the element of symmetry or the axis of symmetry and/or the plane of symmetry run/runs through a point of the respective Light decoupling element, which is arranged maximally far from the second outer surface of the light guide body.
  • the axis of symmetry runs centrally through the spherical cap-shaped tip area.
  • the spherical cap-shaped tip area is divided by the plane of symmetry into two tip sub-areas designed with mirror symmetry.
  • the light decoupling element Due to the symmetry of the respective light decoupling element, a symmetrical angle function of the decoupled light with respect to the symmetry element is supported, as a result of which the angle function of the decoupled light is independent of a propagation direction of the light in the light guide body.
  • the light decoupling element has a first sub-area with a spherical structure (due to the part-circular or spherical cap-shaped tip area) and a second sub-area with a conical structure (due to the linear areas).
  • the main direction of the light emitted from the light guide is strongly dependent on the direction of propagation of the light in the light guide, whereas in the case of the conical structure, sharp jumps in intensity and high asymmetry are obtained.
  • An appropriate combination of the two partial areas enables a homogeneous light function in the desired angular range (65 degrees to 90 degrees relative to the first outer surface of the light guide) in the light guide.
  • the first linear area is connected to the second linear area via a first part-circular connection area, with the second linear area being connected to the third linear area via a second part-circular connection area.
  • the third linear area can be connected to the second outer surface of the light-guiding body via a third part-circular connecting area.
  • the part-circular connecting areas which connect two linear areas or one linear area to the second outer surface of the light guide body, allow a smooth transition between the adjacent linear areas, i.e. between the first linear area and the second linear area and between the second linear area and the third linear area and/or between the third linear area and the second outer surface of the light guide body. These soft transitions enable the light to be emitted particularly homogeneously.
  • the first part-circular connecting area and the second part-circular connecting area are, for example, of equal size. Furthermore, it can be provided that the radius of the first part-circular connecting area and the radius of the second part-circular connecting area between 0.15 millimeters and 0.25 millimeters, for example 0.2 millimeters.
  • the possible configurations of the light decoupling structure described herein are to be understood as merely being exemplary. It is conceivable that, as an alternative or in addition to the possible configurations of the light decoupling structure described here, the light decoupling structure is designed differently, for example is of a different shape and/or of a different type.
  • the light guide body is a transparent body, at least in the non-luminous operating mode of the lighting device, made, for example, of plastic, such as epoxy resin, a polycarbonate (PC), a polymethyl methacrylate (PMMA), an acrylonitrile butadiene styrene (ABS), a silicone, etc. can be manufactured.
  • the light guide can be made of glass.
  • the light-guiding body can be, for example, a rod light guide or a flat light guide. If the light-guiding body is a rod light guide, the light-guiding body can be of at least essentially circular design with a flattened area in cross-section, that is to say viewed in the longitudinal extension of the light guide.
  • the flattened area can then serve as a surface on which the light decoupling elements or the light decoupling structure are/is arranged.
  • the light-guiding body is a flat light guide, it can be designed, for example, as a plate-shaped light guide that has a significantly greater extent in its length and width, ie in the plane of the plate, than in its thickness direction.
  • the light-guiding body then has the first outer surface and the second outer surface as a respective flat side, with the light-coupling surface of the light-guiding body then being formed, for example, as an end face of the plate-shaped light-guiding body.
  • the light guide body can have a varying width and/or a varying depth and/or a varying thickness.
  • varying the relevant dimensions it is possible, for example, to achieve a homogeneous lighting effect.
  • the width decreases with increasing distance from a light source or with increasing distance from the light coupling surface.
  • the first outer surface which faces the user or viewer, is designed to be uneven or different from a planar plane.
  • the lighting device in particular its light guide body, can be presented as a three-dimensionally curved body.
  • FIG. 1 shows a schematic and sectional view of a lighting device
  • FIG. 2 shows a schematic and sectional view of the lighting device in a further embodiment
  • FIG 3 shows a schematic view of the lighting device in a non-lighting operating mode (daytime appearance);
  • FIG. 4 shows a schematic view of the lighting device in a lighting operation mode (night appearance);
  • FIG. 5 shows a perspective view of the lighting device arranged in a built-in position in the non-lighting operating mode
  • FIG. 6 shows a perspective view of the lighting device arranged in an installed position in the lighting operating mode
  • FIG. 7 shows a schematic and sectional view of a light decoupling element
  • FIG. 8 shows a schematic view of an optical fiber
  • a lighting device 1 is provided is a schematic and sectional view.
  • the lighting device 1 is provided for a motor vehicle (not shown), in particular for an interior of the motor vehicle.
  • the lighting device 1 has an optical fiber 2 having a first outer surface 3 and a second outer surface 4 .
  • the light-guiding body 2 which in the present example is designed as a cuboid and flat light-guiding body 2 , has a first end face 5 and a second end face 6 .
  • the end faces 5, 6 are spaced apart from one another over a width or a depth, whereas the outer surfaces 3, 4 are spaced apart from one another over a thickness.
  • the first outer surface 3 is also designed as a useful light exit surface and is free of a dedicated light decoupling structure.
  • a dedicated light decoupling structure 7 is arranged on the second outer surface 4, which has a multiplicity of light decoupling elements 8 in the present example.
  • the light decoupling structure 7 or the light decoupling elements 8 are formed or arranged in the present example only in regions on the second outer surface 4 of the light-guiding body 2 .
  • the light guide body 2 has a light decoupling region 9 in front, which is characterized by the light decoupling structure 7 or the light decoupling elements 8 .
  • the light guide body 2 has at least one clear area 10, which is characterized by the absence of a light decoupling structure or a light decoupling element.
  • a light generated by a light source 11 with a wavelength between approximately 400 nanometers and approximately 780 nanometers (“visible light”) is transmitted via a light coupling surface 12 into the Light guide body 2 is coupled.
  • the light coupling surface 12 is formed by one or more of the end faces 5, 6.
  • the light coupled into the light guide body 2 is then guided inside the light guide body 2 in areas of the light guide body 2 that are free of a light decoupling structure 7 or free of light decoupling elements 8 - i.e. in the respective clear area 10 - through the light guide body 2 by means of total reflection.
  • the light decoupling structure 7 designed for the purpose of decoupling light is formed in the light decoupling region 9 only on the second outer surface 4 of the light guide body 2 .
  • the light-guiding body 2 is designed without a clear area 10 , that is to say it only has a light decoupling area 9 .
  • the lighting device 1 can have such a light-guiding body 2 or more than one such light-guiding body 2 . Such a lighting device with more than one light guide body 2 is shown in FIG.
  • the light decoupling structure 7 is designed in such a way that--if the light is coupled into the light-guiding body 2 via the light-coupling surface 12--the light decoupling area 9 is an opaque area of the light-guiding body 2.
  • the light decoupling structure 7 is designed in such a way that--if no light is coupled into the light-guiding body 2 via the light-coupling surface 12--the light decoupling area 9 is a transparent area of the light-guiding body 2.
  • the lighting device 1 on the side of the first outer surface 3 is free of a dedicated opaque or milky light scattering element, for example a diffusing screen.
  • a dedicated opaque or milky light scattering element for example a diffusing screen.
  • no light scattering element or lens is arranged between a viewer of the lighting device 1 and the light guide body 2 .
  • the lighting device 1 has a design support 14 with a design surface 15, the second outer surface 4 of the light guide body 2 and the design support 14 facing one another.
  • the second outer surface is 4 and the design surface 15 facing the second outer surface 4 is spaced apart from each other by a distance 16 .
  • the distance 16 is between 0.3 millimeters and 100 millimeters.
  • the design carrier 14, in particular its design surface 15, has no reflective function, which means that the design carrier 14 is not an optical reflector element (such as a mirror, etc.).
  • the lighting device 1 comprises a transparent cover element 17 in a further embodiment.
  • the transparent cover element 17 is arranged on the side of the first outer surface 3 facing the light guide body 2 .
  • the transparent cover element 17 is free of a dedicated light decoupling structure, ie free of a light decoupling element designed for the purpose of light decoupling or light deflection.
  • the transparent cover element 17 is a clear pane of glass that is not intended to have any light-scattering function. This means that when manufacturing the cover element, no step has been taken to give the cover element 17 a light-diffusing functionality or property.
  • This also applies analogously to the first outer surface 3 of the light-guiding body 2. Consequently, the transparent cover element 17 is designed or used in the lighting device 1 not to influence the light 13 coupled out of the light-guiding body 2 or the light-guiding bodies 2.
  • the clear or transparent cover element 17 is purely a protective element to prevent objects and/or liquids from getting into the area between the design surface 15 and the light-guiding body 2 or the light-guiding bodies 2 .
  • 3 shows a schematic view of the lighting device 1 in a non-illuminating operating mode, which is also referred to as a daytime appearance.
  • 3 shows a plan view of the lighting device 1, with the design surface 15 carrying a design element 18 or a multiplicity of design elements 18.
  • the respective design element 18 can be, for example, a surface structure of the design surface 15, for example a carbon mesh, etc., symbols, numbers, letters, etc.
  • FIG. 4 shows a schematic view of the lighting device 1 in a lighting operating mode, which is also referred to as night appearance. In the lighting operating mode, light is coupled into the light guide body 2 via the light coupling surface 12, as a result of which the light coupling-out regions 9 are opaque to the observer of the lighting device 1 in the lighting mode or in the daytime appearance.
  • FIG. 5 and Fig. 6 show an application example of the lighting device 1, which is arranged in an installation position.
  • FIG. 5 shows a perspective view of the lighting device 1, which is arranged in the installation position, in the non-illuminated operating mode, that is to say in the daytime appearance.
  • the lighting device 1 can be part of a user interaction unit 19 or that the lighting device 1 has the user interaction unit 19 .
  • the user interaction unit 19 has the light decoupling area 9 or more light decoupling areas 9 as a user interaction area 20 .
  • the design surface 15 and/or any contours arranged thereon are/are through the light guide body 2 visible. Accordingly, light decoupling elements 8 are not shown in FIG. 6 shows a perspective view of the lighting device 1 arranged in the installation position in the lighting operating mode, ie in the night appearance. In contrast to the illustration in FIG. 5, it can be seen in FIG.
  • the respective light decoupling area 9 and a respective clear area 10 merge smoothly into one another.
  • Such a smooth transition between the light decoupling area 9 and the clear area 10 is achieved, for example, in that an arrangement density of light decoupling elements 8 - starting from the opaque light decoupling area 9 in the direction of the im Luminous mode of operation fully transparent clear area 10 - decreases.
  • the respective light decoupling area 9 and the respective clear area 10 are sharply separated from one another, in which case no partially transparent or partially opaque area is arranged between the completely transparent clear area 10 and the completely opaque light decoupling area 9 .
  • FIG. 7 shows a light decoupling element 8 in a schematic and sectional view, with a multiplicity of light decoupling elements 8 forming a light decoupling structure 7 .
  • the light decoupling element 8 has a symmetrical shape composed of several areas.
  • the light decoupling element 8 is embodied symmetrically to an element of symmetry, in particular an axis of symmetry S, when viewed in cross section.
  • the light decoupling element 8 extends, for example, from the second outer surface 4 to the first outer surface of the light-guiding body 2, through which the light is coupled out of the light-guiding body 2 when the light-guiding body 2 is operated in the lighting operating mode (see reference number 13 in Fig. 1 and Fig. 2).
  • the light output element 8 shown in FIG. 7 is a concave light output element.
  • the light decoupling element 8 can extend outwards, starting from the second outer surface 4 of the light-conducting body 2, which means that it is then a convex light decoupling element 8.
  • a single one of the possibly several light decoupling structures 7 can only have convex, only concave or concave and convex light decoupling elements 8 .
  • a tip area 21 is shaped according to a spherical cap or according to a spherical segment and thus appears in the cross section shown in Fig. 7 as an arcuate or part-circular tip area 21.
  • the tip area 21 has a radius R1 and a height h1 (in the direction of extension of the light output element 10).
  • the tip portion 21 is connected to a first linear portion 22 having a height h2.
  • the height h1 is smaller than the height h2; the height h2 corresponds to about twice the height h1, whereby the height scaling is also different can be, that is, h1 can be greater than h2.
  • the first linear area 22 also has a first pitch angle .times.2, which is spanned between the first linear area 22 and the second outer surface 4 of the light guide body.
  • the angle .times.2 shown in FIG. 7 corresponds to 50°, for example.
  • the first linear region 22 and a second linear region 23 and the second linear region and a third linear region 24 are connected to one another via a respective part-circular connec tion region 25, 26.
  • the first part-circular connecting area 25 serves in particular to make the transition between the two linear areas 22, 23 “soft”.
  • the first part-circular connecting area 25 has a radius R23 of 0.2 mm.
  • the second linear area 23 has a height h3 which is greater than the height h2 of the first linear area 22. Furthermore, the second linear area 23 has a second angle of inclination that is different from the angle of inclination 2. 3, which is spanned between the second linear region 24 and the second outer surface 4 of the light guide body 2. As shown, the second slope angle ⁇ 3 of the second linear portion 23 is greater than the first slope angle ⁇ 2 of the first linear portion 22. Here the angle ⁇ 355°.
  • the second linear portion 23 and the third linear portion 24 are connected to each other via the second part-circular connecting portion 26 .
  • the second part-circular connecting area 26 serves to produce a smooth transition between the second linear area 23 and the third linear area 24.
  • the second part-circular connecting area 6 has a radius R34 of 0.2 mm.
  • the third linear region 24 has a height h4.
  • the height h4 is greater than the height h3; here the height h4 is about twice as large as the height h3.
  • the third linear region 24 has a third pitch angle ⁇ 4, which is spanned between the third linear region 24 and the second outer surface 4 of the light-guiding body 2 .
  • the third gradient angle .times.4 is greater than the second gradient angle .times.3 of the second linear region 23 and in particular greater than the first gradient angle .times.2.
  • the angle .times.4 shown here is 60.degree.
  • the third linear region 24 is connected to the second outer surface 4 of the light-conducting body 2 via a third part-circular connecting region 27 .
  • the areas of the light decoupling element 8 are located to the left and right of the symmetry element S, which can have a plane of symmetry and/or an axis of symmetry.
  • the tip portion 21 forms a spherical shape and the linear portions 22, 23 and 24 form frustoconical portions, respectively.
  • the light decoupling element 8 thus combines a spherical structure with conical structures in such a way that the decoupled light shown in FIG. 1 or FIG. 2 can be achieved.
  • FIG. 8 shows a schematic view of the light-guiding body 2 in cross section, the light-guiding body 2 having a light decoupling structure 7 with at least one light decoupling element 8, only one of which is shown in FIG.
  • the light source 11 (for example an LED) couples light into the light guide body 2 .
  • the light is introduced into the light-conducting body 2 via the surface 12 (here the end face 5).
  • the light hits the light decoupling element 8, which extends from the second outer surface 4 of the light-guiding body 2 into the light-guiding body 2 and/or protrudes outwards from it.
  • the light decoupling element 8 the light is directed to the first outer surface and thereby, so that the light can emerge from the light guide body 2 (see light 13).
  • the first outer surface 3 of the light-guiding body 2 is therefore the light decoupling surface of the light-guiding body 2.
  • Fig. 9 shows an angle function, according to which the light 13 is coupled out of the light guide body 2 out.
  • angles with respect to the exit surface (that is, the first outer surface 4) of the light guide body 2 are specified.
  • the symmetry element S extends through the illustrated 90° axis.
  • an extremely homogeneous light function i.e. intensity function of the light (Lambert’s law)
  • the intensity is almost level with a slight drop at the edge of the angular range.
  • the angular function is symmetrical with respect to the 90° axis in the required angular range. This symmetry brings the further advantage that the angular function of the decoupled Light is independent of the propagation direction of the light in the light guide body 2. A free choice for the light source 11 on the light guide body 2 is thus possible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne un dispositif d'éclairage (1) pour un véhicule à moteur, comprenant un corps de guidage de lumière (2) ayant une première surface extérieure (3), qui est exempte d'une structure de couplage de sortie de lumière dédiée, et une deuxième surface extérieure (4), les surfaces extérieures (3, 4) étant espacées l'une de l'autre au moyen d'une épaisseur du corps de guidage de lumière (2). En outre, une surface de couplage d'entrée de lumière (5, 12), qui est différente des surfaces extérieures (3, 4), et une région de couplage de sortie de lumière (9), dans laquelle une structure de couplage de sortie de lumière dédiée (7) est formée sur la deuxième surface extérieure (4), sont disposées sur le corps de guidage de lumière (2). La structure de couplage de sortie de lumière comporte un élément de couplage de sortie de lumière (8) et est constituée de sorte que, dans un mode de fonctionnement lumineux, la région de couplage de sortie de lumière (9) soit une région non transparente du corps de guidage de lumière (2) et, dans un mode de fonctionnement non lumineux, la région de couplage de sortie de lumière (9) soit une région transparente du corps de guidage de lumière (2). Une partie d'un élément de conception (18) attachée à une surface de conception (15) d'un support de conception (14) du dispositif d'éclairage (1), ladite partie étant recouverte par la région de couplage de sortie de lumière (9), est visible par un observateur humain dans le mode de fonctionnement non lumineux et n'est pas visible par un observateur humain dans le mode de fonctionnement lumineux.
EP22715009.1A 2021-04-01 2022-03-14 Dispositif d'éclairage pour véhicule à moteur Pending EP4313656A1 (fr)

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DE102021108391.5A DE102021108391A1 (de) 2021-04-01 2021-04-01 Beleuchtungsvorrichtung für ein kraftfahrzeug
PCT/EP2022/056510 WO2022207293A1 (fr) 2021-04-01 2022-03-14 Dispositif d'éclairage pour véhicule à moteur

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CN (1) CN116997478A (fr)
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WO (1) WO2022207293A1 (fr)

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FI106992B (fi) * 1999-05-28 2001-05-15 Ics Intelligent Control System Valo-opaste
US6738051B2 (en) 2001-04-06 2004-05-18 3M Innovative Properties Company Frontlit illuminated touch panel
KR100542058B1 (ko) * 2002-12-06 2006-01-11 주식회사 에스엘 엘씨디 차량용 램프
US8322874B2 (en) 2007-09-06 2012-12-04 3M Innovative Properties Company Lightguides having light extraction structures providing regional control of light output
DE102010006348A1 (de) 2010-01-30 2011-08-04 Hella KGaA Hueck & Co., 59557 Beleuchtungsvorrichtung für Fahrzeuge
DE102011016430A1 (de) * 2011-04-08 2012-10-11 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Heckscheibe für ein Kraftfahrzeug und Verfahren zur Anzeige von einen Einparkvorgang betreffenden Informationen auf einem Anzeigeelement
KR101939506B1 (ko) * 2014-09-05 2019-01-16 가부시키가이샤 덴소 표시 장치
JP6435974B2 (ja) * 2015-04-15 2018-12-12 オムロン株式会社 表示装置及び遊技機
DE102015016719A1 (de) 2015-12-05 2016-07-21 Daimler Ag Dekorelement, insbesondere für Leuchteffekte im Innenraum eines Fahrzeuges
US10436971B2 (en) 2017-01-23 2019-10-08 Ideal Industries Lighting, LLC Wall washing light fixtures
DE102017114268B4 (de) * 2017-06-27 2023-06-22 Lisa Dräxlmaier GmbH Leuchtvorrichtung für fahrzeuganwendungen
EP3587914A1 (fr) * 2018-06-26 2020-01-01 Ficomirrors, S.A.U. Dispositif d'éclairage et procédé de fabrication dudit dispositif d'éclairage
FR3087726B1 (fr) * 2018-10-31 2022-09-09 Saint Gobain Vitrage lumineux pour vehicule automobile
TW202102384A (zh) * 2019-07-09 2021-01-16 群光電能科技股份有限公司 發光車標
DE102019131532A1 (de) 2019-11-21 2021-05-27 Lisa Dräxlmaier GmbH Lichtleiter mit spezifischem lichtauskopplungselement

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WO2022207293A1 (fr) 2022-10-06
CN116997478A (zh) 2023-11-03
DE102021108391A1 (de) 2022-10-06

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