WO2024165367A1 - Verkleidungsteil, verfahren zum homogenisieren einer lichtintensität von wenigstens zwei lichtleitern sowie fahrzeug - Google Patents
Verkleidungsteil, verfahren zum homogenisieren einer lichtintensität von wenigstens zwei lichtleitern sowie fahrzeug Download PDFInfo
- Publication number
- WO2024165367A1 WO2024165367A1 PCT/EP2024/052117 EP2024052117W WO2024165367A1 WO 2024165367 A1 WO2024165367 A1 WO 2024165367A1 EP 2024052117 W EP2024052117 W EP 2024052117W WO 2024165367 A1 WO2024165367 A1 WO 2024165367A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- light exit
- guides
- decorative layer
- exit regions
- 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.)
- Ceased
Links
Classifications
-
- 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
- G02B6/0005—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 of the fibre type
- G02B6/001—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 of the fibre type the light being emitted along at least a portion of the lateral surface of the fibre
-
- 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
- B60Q3/217—Doors, e.g. door sills; Steps
-
- 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
- B60Q3/50—Mounting arrangements
- B60Q3/54—Lighting devices embedded in interior trim, e.g. in roof liners
-
- 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
Definitions
- Panelling part method for homogenising a light intensity of at least two light guides and vehicle
- the present invention relates to a trim part, in particular for a vehicle, which has at least one decorative layer with at least two light guides into which light can be coupled, wherein each light guide has n first light exit areas in a visible area of the decorative layer for the exit of the coupled light. Furthermore, the invention relates to a method for homogenizing a light intensity of at least two light guides that can be incorporated in a decorative layer of such a trim part, as well as a vehicle with at least one such trim part.
- trim parts made of textile with light guides are increasingly being used.
- the light guides illuminate the textile, creating an additional optical effect in the interior.
- the light guides are woven into the textile, bundled and connected to a light source, for example an LED module.
- the light source brings light into each individual light guide and the light runs axially inside the light guide, as with glass fibers.
- the light visible in the textile emerges radially from the light guides.
- the light can emerge from the light guide in two different ways. In the first variant, the light is emitted along the entire length of the fiber in a radial direction.
- Such light guides are called "side emitting fibers”.
- the luminous textile consists of at least one layer of warp and weft threads, with at least one light source coupling light into the front of the luminous textile, and the light being emitted from the luminous textile at an angle to the longitudinal extension of the light-guiding element, for example the thread, with a light coupling structure for more targeted reflection of the light from distributed reflector elements which are adhesively connected to the light-guiding elements, for example the threads, of the luminous textile on at least one side of the surface of the luminous textile.
- the light guide has an opaque coating, known as "cladding", which prevents light from escaping along the entire length of the light guide, but only where the coating has been removed.
- the removal of the coating is called activation and is usually carried out by mechanical processing, for example sandblasting, or by thermal processing, for example using a laser.
- DE 102016 207 693 A1 discloses a method for producing a trim part for a vehicle.
- a large number of light guides are woven into a fibrous decorative layer.
- material from the fibrous decorative layer is then removed from the surface.
- Fibers of the fibrous decorative layer are removed from the surface and light guides are slightly and intentionally damaged, so that edge-emitting sections are created on them. Light coupled into the light guides can then emerge from the edge-emitting sections and thus cause the luminous decoration to glow.
- the light intensity during activation depends on the number of activated light points per light guide, i.e. on the number of activated or removed surfaces. This means that a pattern in the textile that is not the same everywhere results in a different number of light exit points and thus shows an inhomogeneous light image. As a result, some light points shine more brightly than others.
- the present invention is based on the object of creating a trim part, a method and a vehicle which have a homogeneous light image.
- a trim part with the features of claim 1 a method with the features of claim 8 and a vehicle with the features of claim 10 are proposed.
- a trim part in particular for a vehicle, has at least one decorative layer with at least two light guides into which light can be coupled, wherein each light guide has n first light exit areas in a visible area of the decorative layer for the exit of the coupled light and n second light exit areas in a non-visible area of the decorative layer for the exit of the coupled light, wherein the number of first and second light exit areas of one light guide is equal to the number of first and second light exit areas of the other light guide, or wherein the number of first and second light exit areas of one light guide is slightly smaller or larger than the number of first and second light exit areas of the other light guide.
- the invention is based on the idea that no light exit areas or activation points can be added in the visible area of the decorative layer, since otherwise the desired pattern would be changed or eliminated.
- further light exit areas are added in the non-visible area of the decorative layer.
- the number of first and second light exit areas of each light guide is the same or the number of first and second light exit areas of one light guide is only slightly larger or smaller than the number of first and second light exit areas of the other light guide.
- both light guides have a homogeneous light intensity despite the different number of first light exit areas. This creates a trim part with a homogeneous light image.
- one of the light guides has first light exit areas in the visible area of the decorative layer 30 and the other light guide has first light exit areas in the visible area two first light exit areas
- 28 second light exit areas in a non-visible area of the decorative layer are added to the light guide that has two first light exit areas in the visible area. This brings the light intensity of the two light exit areas in the visible area to the same intensity level as the light guide with 30 first light exit areas in the visible area.
- a visible area is understood to be the area or side or surface of the decorative layer that is visible when the trim part is installed.
- the visible area can also be referred to as the A area, visible side or visible surface.
- a non-visible area of the decorative layer is understood to be the area or side or surface of the decorative layer that is not visible when the trim part is installed.
- the non-visible area can also be referred to as the B area, non-visible side or non-visible surface.
- a bent edge area or edge section of the decorative layer that is not visible when the decorative layer is installed and/or a protrusion can form the non-visible area of the decorative layer.
- An underside of the light guide that faces away from an interior of the vehicle when the trim part is installed and is therefore not visible can also form a non-visible area.
- slightly smaller or larger means that the sum of the first and second light exit areas of one light guide is not greater than five, in particular not greater than three, than the sum of the first and second light exit areas of the other light guide.
- n stands for a whole number starting from 0 to infinity.
- the light exit area can also be referred to as a light point, light exit point or activated area of a light guide.
- the light guide can also be referred to as a light fiber.
- the trim part can be used for an interior of a vehicle or for an exterior of a vehicle.
- the The trim part can be used to cover an interior part, such as a vehicle door, an instrument panel or a center console, and/or an exterior part, such as a bumper or an outside mirror.
- the trim part can also be used for a clothing part or to cover a piece of furniture.
- the number of first light exit areas of the light guides is different, and/or the number of second light exit areas of the light guides is different.
- an inhomogeneity in the light intensity between the light guides is equalized by providing second light exit areas in a non-visible area of the decorative layer.
- the number of first light exit areas and second light exit areas corresponds to the sum of the first light exit areas and the second light exit areas of a light guide. Consequently, the sum of the first light exit areas and the second light exit areas of a light guide is equal to or slightly smaller or larger than the sum of the first light exit areas and the second light exit areas of the other light guide.
- the decorative layer has a plurality of light guides, wherein the number of first and second light exit areas of each light guide is the same, or wherein the number of first and second light exit areas of the light guide differs slightly.
- all light guides have the same light intensity and a homogeneous light image is generated in the visible area of the decorative layer.
- slightly different means that the sums resulting from the first and second light exit areas of each light guide differ slightly from one another, i.e. by no more than 5, in particular by no more than three.
- the light guides are coated with an opaque layer, wherein the first and second light exit areas are created by removing and/or damaging the opaque layer in certain areas.
- removing the opaque layer in certain areas Activated surfaces are created from which the light can emerge from the light guide, particularly diffusely and/or radially.
- the partial removal and/or damage of the opaque layer can be carried out by means of sandblasting and/or laser.
- the decorative layer is designed as a textile layer, with the light guides being woven into the textile layer.
- the textile layer is advantageously formed from warp and weft threads.
- the light guides are also advantageously woven into the textile layer in such a way that the first light exit areas are arranged in a visible area of the decorative layer designed as a textile layer and the second light exit areas are arranged in a non-visible area of the decorative layer designed as a textile layer.
- the light guides are woven into the textile layer as warp threads and/or weft threads.
- the first light exit areas and/or the second light exit areas are the same or different sizes.
- the light intensity of a light guide can also be adjusted via the size of the light exit areas.
- the bundled light guides can be surrounded by a tube, which is referred to as a tentacle.
- the bundled light guides can be provided at the end with an optical coupling point, which is referred to as a ferrule, via which the light source is connected and via which light is coupled into the light guides.
- the ferrule can be closed at its free end with an adhesive.
- the light source can be a light module, in particular an LED light module.
- a method for homogenizing a light intensity of at least two light guides that can be incorporated into a decorative layer of a trim part according to the invention is proposed.
- the light guides are first provided.
- n first light exit areas are introduced into each light guide in such a way that the first light exit regions are arranged in a visible region of the decorative layer, in particular to produce a light image.
- n second light exit regions are introduced into at least one of the light guides in such a way that the second light exit regions are arranged in a non-visible region of the decorative layer and that the number of first and second light exit regions of the light guide corresponds at least to the number of first light exit regions of the other light guide, or that the number of first and second light exit regions of one light guide is slightly smaller or larger than the number of first and second light exit regions of the other light guide.
- second light exit regions can be introduced into all light guides in order to homogenize the light intensity of the light guides, wherein the sum of the first and second light exit regions of each light guide is the same, or wherein the sums resulting from the first and second light exit regions of each light guide differ slightly from one another.
- the first light exit areas and/or the second light exit areas are created by removing and/or damaging a layer covering the light guide in certain areas.
- the covering layer is an opaque layer.
- the covering layer can be removed by means of laser and/or sand blasting.
- the light coupled into the light guide exits the light exit areas diffusely and/or radially.
- a vehicle which has at least one trim part according to the invention.
- Fig. 1 shows a vehicle having a vehicle door with a trim part
- Fig. 2 is an enlarged front view of the trim part with a decorative layer designed as a textile layer, with light guides woven into the textile layer;
- Fig. 3 is an enlarged cross-section through the textile layer with at least one woven light guide according to a first embodiment of Fig. 2;
- Fig. 4 is an enlarged cross-section through the light guide of Fig. 3 with light exit areas;
- Fig. 5 is a perspective view of two light guides of the textile layer of Fig. 2 with first and second light exit regions;
- Fig. 6 is a schematic front view of a decorative layer with the light guides of Fig. 5, which is bent at the edge for installation in the trim part;
- Fig. 7 is an enlarged cross-section through a light guide according to a second embodiment.
- Fig. 1 shows a vehicle 10 with a vehicle door 12.
- the vehicle 10 has a drive machine designed as an internal combustion engine and/or as an electric motor.
- the vehicle door 12 has a trim part 14 shown in Fig. 2 with a decorative layer 16.
- the decorative layer 16 has a visible area 32 which, when the trim part 14 is installed, faces an interior of the vehicle 10, and a non-visible area 34 which, when the trim part 14 is installed, faces away from the interior.
- the non-visible area 32 of the decorative layer 16 is an edge section of the decorative layer 16 which is bent over for installation in the trim part 14 and is therefore not visible when installed, as shown schematically in Fig. 6.
- the decorative layer 16 is a textile layer 18 which is formed from interwoven warp threads 20 and weft threads 22, as can be seen from a synopsis of the figures. gures 3 and 5. Furthermore, light guides 24 are woven into the textile layer 18 as weft threads 22, which produce a light image in the textile layer 18. It is also conceivable that the light guides 24 are woven into the textile layer as warp threads 20 or as warp threads 20 and as weft threads 22.
- Each light guide 24 has a light channel 26, into which light is coupled at the end via a light source (not shown), as shown by an arrow in Fig. 4.
- the light channel 26 is surrounded by an opaque layer 28 which encases the light channel 26 and is referred to as cladding.
- first and second light exit areas 30a, 30b which can also be referred to as activated areas, are created.
- the light coupled into the light channel 26 exits diffusely from the light guide 24, as is shown schematically in Fig. 4 by the arrows.
- the light guides 24 in the visible area 32 of the decorative layer 16 have a different number of first light exit areas 30a in order to generate the light image in the textile layer 18. Since the light source couples the same amount of light into each light guide 24, a light guide 24 with few first light exit areas 30 has a higher light intensity per first light exit area 30a than the first light exit areas 30a of a light guide 24 with many first light exit areas 30a. As a result, some first light exit areas 30 shine more brightly than other first light exit areas 30a.
- first light exit areas 30a In order to equalize the inhomogeneity of the light intensity between the light guides 24 with different numbers of first light exit areas 30a, it is necessary to equalize the number of light exit areas. Since no further first light exit areas 30a can be added in the visible area 32 of the decorative layer 16, since otherwise the desired light image is changed or eliminated, second light exit areas 30b are added in the non-visible area 32 of the decorative layer 16, as can be seen in Figures 5 and 6. As shown by way of example in Figures 5 and 6, one of the light guides 24 has two first light exit regions 30a in the visible region 32 and the other light guide 24 has six first light exit regions 30a in the visible region 32. To homogenize the light intensity of the two light guides 24, four second light exit regions 30b are added in the non-visible region 32, as can be seen in Fig. 6. As a result, each light guide 24 has the same number of light exit regions 30a, 30b.
- a second embodiment of the light guide 24 is shown, which differs from the first embodiment in that, in order to homogenize the intensity of the light guide 24, the second light exit regions 30a are introduced into a bottom side 36 of the light guide 24 and thus into the non-visible region 32 of the decorative layer 16.
- the covering part 14 is characterized in that the light intensity between the light guides 24 is homogenized by adding second light exit areas 30b in a non-visible area 32 of the decorative layer 16 in order to adjust the intensity level of the light guides 24.
- Light channel opaque layer a first light exit area b second light exit area visible area
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202480006131.2A CN120500599A (zh) | 2023-02-09 | 2024-01-30 | 覆盖部件、用于均化至少两个光导体的光强的方法以及车辆 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023103107.4 | 2023-02-09 | ||
| DE102023103107.4A DE102023103107A1 (de) | 2023-02-09 | 2023-02-09 | Verkleidungsteil, Verfahren zum Homogenisieren einer Lichtintensität von wenigstens zwei Lichtleitern sowie Fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024165367A1 true WO2024165367A1 (de) | 2024-08-15 |
Family
ID=89771623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2024/052117 Ceased WO2024165367A1 (de) | 2023-02-09 | 2024-01-30 | Verkleidungsteil, verfahren zum homogenisieren einer lichtintensität von wenigstens zwei lichtleitern sowie fahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN120500599A (de) |
| DE (1) | DE102023103107A1 (de) |
| WO (1) | WO2024165367A1 (de) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170095043A1 (en) * | 2014-05-30 | 2017-04-06 | Apple Inc. | Woven display |
| US20170217366A1 (en) * | 2014-10-16 | 2017-08-03 | Shanghai Yanfeng Jinqiao Automotive Trim Systems Co., Ltd. | Component for a vehicle interior |
| DE102016207693A1 (de) | 2016-05-04 | 2017-11-09 | Volkswagen Aktiengesellschaft | Formhimmel mit Leuchtdekor |
| JP2019108647A (ja) * | 2017-12-19 | 2019-07-04 | 大喜株式会社 | 織物 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4234907A (en) * | 1979-01-29 | 1980-11-18 | Maurice Daniel | Light emitting fabric |
| DE102012215165B4 (de) * | 2012-08-27 | 2020-12-03 | Lisa Dräxlmaier GmbH | Dekorverbund mit dynamischen Lichtstrukturen |
| DE102017100754A1 (de) * | 2017-01-16 | 2018-07-19 | Automotive Lighting Reutlingen Gmbh | Beleuchtungseinrichtung für ein Kraftfahrzeug |
| EP3878693B1 (de) * | 2020-03-13 | 2023-05-24 | Grupo Antolin-Ingenieria, S.A. | Hinterleuchtete innenverkleidung für den fahrzeuginnenraum |
-
2023
- 2023-02-09 DE DE102023103107.4A patent/DE102023103107A1/de active Pending
-
2024
- 2024-01-30 CN CN202480006131.2A patent/CN120500599A/zh active Pending
- 2024-01-30 WO PCT/EP2024/052117 patent/WO2024165367A1/de not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170095043A1 (en) * | 2014-05-30 | 2017-04-06 | Apple Inc. | Woven display |
| US20170217366A1 (en) * | 2014-10-16 | 2017-08-03 | Shanghai Yanfeng Jinqiao Automotive Trim Systems Co., Ltd. | Component for a vehicle interior |
| DE102016207693A1 (de) | 2016-05-04 | 2017-11-09 | Volkswagen Aktiengesellschaft | Formhimmel mit Leuchtdekor |
| JP2019108647A (ja) * | 2017-12-19 | 2019-07-04 | 大喜株式会社 | 織物 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023103107A1 (de) | 2024-08-14 |
| CN120500599A (zh) | 2025-08-15 |
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