EP4584532A1 - Titre de l'invention : equipement extérieur arrière pour véhicule automobile avec un module lumineux à nappe de guidage flexible - Google Patents
Titre de l'invention : equipement extérieur arrière pour véhicule automobile avec un module lumineux à nappe de guidage flexibleInfo
- Publication number
- EP4584532A1 EP4584532A1 EP23767881.8A EP23767881A EP4584532A1 EP 4584532 A1 EP4584532 A1 EP 4584532A1 EP 23767881 A EP23767881 A EP 23767881A EP 4584532 A1 EP4584532 A1 EP 4584532A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- flexible guide
- guide sheet
- pattern
- light module
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/10—Protection of lighting devices
-
- 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
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0029—Spatial arrangement
- B60Q1/0035—Spatial arrangement relative to the vehicle
-
- 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
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0029—Spatial arrangement
- B60Q1/0041—Spatial arrangement of several lamps in relation to each other
- B60Q1/0058—Stacked, i.e. one lamp located behind the other in the optical axis direction
-
- 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
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2607—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic comprising at least two indicating lamps
-
- 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
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/2661—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic mounted on parts having other functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/251—Light guides the light guides being used to transmit light from remote light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
-
- 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
-
- 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
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/20—Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp
-
- 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
- B60Q2900/00—Features of lamps not covered by other groups in B60Q
- B60Q2900/40—Several lamps activated in sequence, e.g. sweep effect, progressive activation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2104/00—Exterior vehicle lighting devices for decorative purposes
Definitions
- the present invention relates to the field of light modules of rear exterior equipment for a motor vehicle, in particular light modules with light guides.
- the invention applies in particular, but not exclusively, to the display of light patterns on external equipment arranged at the rear of a motor vehicle.
- the first injection element can be arranged so as to inject light into a first section of the edge of the guide sheet of the assembly
- the second injection element can be arranged so as to inject light in a second section of the edge of the flexible guide sheet, a first part of the flexible guide sheet located opposite the first section of the edge being engraved according to the first pattern, and a second part of the guide sheet flexible located opposite the second section of the edge being engraved according to the second pattern.
- the flexible film 111 may be a substrate film made of polycarbonate, PC, polymethyl methacrylate, PMMA, thermoplastic polyurethane, TUP, or polyethylene terephthalate, PET.
- the flexible film 111 may have a thickness, i.e. a dimension along the Z axis, of between 12 and 1000 micrometers. More precisely, the thickness of the flexible film 111 can be between 50 and 1000 micrometers, for example between 200 and 500 micrometers. Alternatively, it is the flexible guide sheet 110 which has a thickness of between 200 and 1000 micrometers.
- a fine coating of microstructures 113 can be added to one of the faces of the flexible film 111, or be integrated into the flexible film 111.
- the microstructure coating 113 may in particular have a thickness along the Z axis of less than 20 micrometers.
- Such microstructures 113 may have a general bump shape, on which the light rays are reflected in a direction substantially along the Z axis. Such microstructures 113 may be capable of causing the light rays emerging from the flexible film 111 to form a pattern. .
- the microstructures 113 can be engraved by ultraviolet printing, according to the desired pattern.
- microstructures 113 we mean structures, or irregularities of the flexible film, the dimensions of which are less than a few micrometers. Microstructures thus also cover nanometric structures. Such sizes of microstructures 113 ensure high transparency of the flexible film 111. In particular, a transparency of around 97% can be obtained by practical by the use of microstructures 113.
- the flexible guide sheet can be semi-transparent or opaque.
- the microstructures 113 can be distributed along the axis 120.
- Such a distribution advantageously makes it possible to ensure a homogeneous distribution along the X axis of the light intensity of the pattern emitted by the flexible guide sheet 110.
- the flexible guide sheet 110 may further comprise one or two optional protective layers 112.1 and 112.2, which make it possible to mechanically protect the flexible film 111.
- at least one of the protective layers 112.1 and 112.2 may include an anti-UV treatment, making it possible to protect the flexible film against UV rays, once the microstructures 113 have been etched. Without such UV protection, the pattern projected by the flexible guide sheet 110 is likely to degrade over time, particularly when exposed to the sun's rays.
- the flexible film 111 and the protective layers 112.1 and 112.2 are shown spaced apart in Figure 1, for illustration purposes only. It will be understood, however, that the protective layers 112.1 and 112.2 can be attached to the flexible film, in particular by lamination.
- the guide sheet 110 being flexible, it is not necessarily included in a plane but can be curved, depending on the position in which it is placed and the mechanical constraints applied to it.
- the light module 100 illustrated in Figure 1 also comprises a light injection element 120, also called a light bar, because it extends longitudinally in a direction Y, and capable of injecting light in a direction normal to its direction. longitudinal, for example along the axis
- the light injection element 120 has a rectangular or square section in Figure 1. However, the light injection element 120 can have a round, oval, or polygonal section.
- the light injection element 120 comprises an outlet surface 122 extending in the longitudinal direction and capable of injecting light in a direction substantially normal to the outlet surface 122.
- the light injection element light 120 further comprises an entrance surface 121, at one end of the light injection element 120, capable of receiving light rays from a light source 130, and the light injection element 120 is capable of guiding the light longitudinally along the Y axis by distributing it on the exit surface 122.
- the distribution of light by the exit surface 122 will be better understood in the light of the description of Figure 2.
- the light source 130 may be capable of generating light in a range of wavelengths. Such an interval can be centered around a visible color, in order to generate colored light, for example blue, red or green. Alternatively, the light source 130 may emit light rays over the entire range of wavelengths visible to the human eye, so as to generate white light. A very restricted wavelength range can be produced by a laser-type light source 130.
- the light source 130 may be capable of generating light in at least two distinct wavelength intervals, for example corresponding to two distinct colors. It can for example be an electroluminescent source of the LED type for example, having the advantage of a small size, low energy consumption and low heating, producing two different colors of light, capable of be controlled by a control element not shown. It may in particular be an RGB type diode, capable of producing red, green and blue light.
- the light module according to the first embodiment can comprise a flexible guide sheet 110, an element injection 120 and a light source 130 capable of generating light in at least two distinct wavelength intervals.
- the light source 130 can be controlled by a control element not shown, but described later, in order to vary the projected color and thus produce a light animation.
- the light source 130 is not arranged directly facing the entrance surface 121 of the injection element 120, but the light module 100 further comprises an optical fiber placed between the source 130 and the injection element 120, which makes it possible to offset the source 130 relative to the assembly formed by the injection element 120 and the flexible guide sheet 110.
- Figure 2A shows an injection element 120 of a light module according to embodiments of the invention.
- the injection element 120 may comprise a plurality of injection guides 123 capable of receiving light from the source 130 via the entrance surface 121 and of guiding the light to a longitudinal position of the exit surface 122, the longitudinal positions of the light guides being distinct so as to distribute the light to at least several longitudinal positions of the exit surface 122.
- Figure 2B shows the light module 100 with an injection element 120a which is integral with the flexible guide sheet 110.
- the injection element 120a comprises a set of light injection guides 123a which will be described with reference to the following Figure 2C.
- the injection element 120a comprises a plurality of injection guides 123.1, 123.2 and 123.3 capable of receiving light from the source 130 via the entrance surface 121a and of guiding the light up to the different positions along the distinct Y axis 124.1, 124.2 and 124.3.
- the injection guides 123.1, 123.2 and 123.3 are in the same material and they have the same thickness as the flexible film 111 of the guide sheet 110.
- the light guide 105 can be obtained by a procedure roll manufacturing roller, or R2R for "Roll To Roll in English", during which the flexible film 111 and the injection layers 123.1, 123.2 and 123.3 are obtained from the same roll of flexible film, the injection layers being 123.1, 123.2 and 123.3 being cut at different positions in Y, in a cutting direction substantially parallel to the direction X.
- the injection layers thus obtained are flexible and can be folded as shown in Figure 2C.
- the length of each injection sheet 123.1, 123.2 and 123.3 is chosen so that once folded, their ends together form a stack having an injection surface 121 a, as illustrated in Figure 2C.
- Each longitudinal position of the edge 114 can correspond to a guide line of the flexible film 111, capable of guiding the light along the 'X axis along such a guide line.
- Such an association of a flexible guide sheet 110, an injection element 120 and a source 130 thus makes it possible to project light in the Z direction through a flexible, transparent, semi-transparent or opaque surface, with good surface homogeneity and according to a given pattern.
- such a light module can make it possible to emit a pattern with a brightness of between 100 and 1000 Candelas per square meter, with a light extraction efficiency of between 25% and 80%.
- a light module of exterior equipment for a vehicle comprises:
- At least one light injection element such as the injection element 120 described with reference to Figures 1 and 2;
- - at least one light source such as the light source 130 previously described with reference to Figure 1, capable of injecting light into said at least one injection element.
- pattern we mean any distribution or predefined spatial distribution of the light intensity emitted by the light module.
- a pattern can thus include a two-dimensional shape or symbol obtained by contrast between the light intensities of different positions in the X-Y plane of the flexible guide sheet 110.
- the pattern can also include several shapes or symbols.
- a pattern covers a predefined, or intentional, spatial distribution of light intensity that does not reveal a general shape, such as a distribution inducing a cloud of light points.
- a pattern is formed by injecting light into an injection element which is arranged relative to a flexible guide sheet so as to form the pattern on the flexible guide sheet.
- a flexible guide sheet is thus capable of projecting light according to at least one pattern, and a pattern can correspond to at least one shape or symbol.
- a flexible guide sheet can also project light in at least two patterns, when the flexible guide sheet is associated with several injection elements.
- the light module comprises a single source, a single injection element and a single flexible guide sheet capable of forming a pattern.
- the light module comprises at least two injection elements similar to the injection element 120 previously described.
- the embodiments may vary by the number of elements that the light module includes, and by their respective arrangements. However, the descriptions and definitions given previously of the light source, the injection element and the flexible guide sheet apply to all of the embodiments.
- Figure 3A illustrates a light module 300 according to a second embodiment of the invention.
- injection elements are arranged so as to inject light into the same flexible guide sheet, comprising several patterns.
- the first and second injection elements 320.1 and 320.2 may be similar to the injection element 120 described with reference to Figures 1 and 2.
- the flexible guide sheet 310 may correspond to the flexible guide sheet 110 previously described.
- the first injection element 320.1 is thus capable of injecting light into the edge 314, which is then guided by the flexible guide sheet 310 in a first part 315.1 of the flexible guide sheet 310.
- the second injection element 320.2 is capable of injecting light into the edge 314, which is then guided in a second part 315.2 of the flexible guide sheet 310.
- a single source can be provided and the light module 300 comprises a first optical fiber capable of routing the light from the single source towards the input surface of the first injection element 320.1 and a second optical fiber is capable of routing the light from the single source to the entrance surface of the second injection element 320.2.
- Figure 3B illustrates a variant of the light module 300.
- first pattern comprising a first symbol 316.1 which is engraved in the first part 315.1 while a second pattern comprising a second symbol 316.2 which is engraved in the second part 315.2.
- first part and the second part can be alternatively capable of emitting light in homogeneous patterns, with constant brightness over the entire first part 315.1 and the second part 315.2.
- the projection of symbols 316.1 and 316.2 is therefore optional.
- the light module 400 comprises at least a first flexible guide sheet 410.1 and a second flexible guide sheet 410.2, the two flexible guide sheets being superimposed, which implies that at least a part of the first flexible guide sheet 410.1, in the X-Y plane, is superimposed with at least part of the second flexible guide sheet 410.2, in a common zone, which corresponds to a set of positions in the X-Y plane.
- the first and second flexible guide sheets 410.1 and 410.2 have the same dimensions in the X-Y plane, and completely overlap.
- a first source 430.1 is arranged facing an entrance surface of the first injection element 420.1 so as to propagate light rays inside the first injection element 420.1 and therefore towards the first sheet flexible guide 410.1.
- a second source 430.2 is arranged opposite an entrance surface of the second injection element 420.2 so as to propagate light rays inside the second injection element 420.2 and therefore towards the second flexible guide sheet 410.2 .
- a single source can be provided and the light module comprises a first optical fiber capable of routing the light from the single source towards the input surface of the first injection element 420.1 and a second optical fiber is capable of routing the light from the single source towards the entrance surface of the second injection element 420.2.
- the first pattern 416.1 is engraved in the first flexible guide sheet 410.1 while the second pattern 416.2 is engraved in the second guide sheet flexible 410.2.
- the first and second patterns 416.1 and 416.2 have distinct symbols, and are identical to patterns 316.1 and 316.2 of Figure 3, for illustration purposes.
- the patterns can be any intentional, or predetermined, spatial distribution of light intensity.
- the patterns are shapes or symbols, the first and second patterns 416.1 and
- 416.2 may have identical symbols but distinct colors. Indeed, the colors projected respectively for each pattern can vary, when the sources 430.1 and 430.2 produce light of different colors.
- At least one of the flexible guide layers may be transparent.
- the flexible guide sheet located below the light module 400 that is to say the first flexible guide sheet 410.1, can be opaque or semi-transparent.
- the second flexible guide sheet 410.2 is transparent or semi-transparent, so as to allow at least part of the light emitted by the first flexible guide sheet 410.2 to pass through.
- Figure 5 illustrates a light module 500 according to a fourth embodiment of the invention.
- the light module 500 comprises at least a first flexible guide sheet 510.1 and a second flexible guide sheet 510.2, the two flexible guide sheets being placed one next to the other, and the two flexible guide sheets are thus capable of projecting light rays from distinct positions in the X-Y plane in which the flexible guide sheets mainly extend.
- the first flexible guide sheet 510.1 is capable of projecting a first pattern, not shown, at a first position of the XY plane
- the second flexible guide sheet 510.2 is capable of projecting a second pattern 516.2 at a second position of the plane XY, the first and second positions being distinct, for example next to each other.
- Each projected pattern may include a symbol or part of a symbol.
- a pattern of a flexible guide sheet comprises a symbol part
- such a part may be complementary to another symbol part formed by the pattern of another flexible guide sheet, or other symbol parts formed by the patterns of other flexible guide sheets.
- a first injection element 520.1 is arranged to inject light into an edge of the first flexible guide sheet 510.1 and a second injection element 520.2 is arranged to inject light into an edge of the second guide sheet 510.2 .
- a first source 530.1 is arranged facing an entrance surface of the first injection element 520.1 so as to propagate light rays inside the first injection element 520.1 and therefore towards the first flexible guide sheet 510.1 .
- a second source 530.2 is arranged opposite an entrance surface of the second injection element 520.2 so as to propagate light rays inside the second injection element 520.2 and therefore towards the second flexible guide sheet 510.2 .
- a single source can be provided and the light module 500 comprises a first optical fiber capable of routing the light from the single source towards the entrance surface of the first injection element 520.1 and a second optical fiber is capable of routing the light from the single source to the entrance surface of the second injection element 520.2.
- the first and second sources 530.1 and 530.2 can selectively inject light into the first injection element 520.1 and/or into the second injection element 520.2.
- Such selective injection can be controlled by a control element 540 connected to the two sources 530.1 and 530.2, or controlling the supply of the two sources 530.1 and 530.2.
- the first pattern is engraved in the first flexible guide sheet 510.1 while the second pattern is engraved in the second flexible guide sheet 510.2.
- the selective injection of light into the first injection element 520.1 and/or into the second injection element 520.2 thus makes it possible to project the first pattern, the second pattern, none of the patterns or both patterns at the same time, thus making it possible, through dynamic control, to produce an animation from at least the first and second patterns.
- the first and second patterns can have distinct shapes, and can for example be identical to patterns 316.1 and 316.2 of Figure 3.
- the patterns can be any intentional spatial distribution, or predetermined, light intensity.
- the first and second patterns may have identical symbols but distinct colors. Indeed, the colors projected respectively for each pattern can vary, when the sources 530.1 and 530.2 produce light of different colors.
- the patterns may comprise parts of symbols complementary to each other, so as to form one or more symbols on several flexible guide sheets of the matrix.
- the flexible guide layers can be linked to each other by a support matrix structure, which can itself be flexible.
- each flexible guide sheet can be connected to the flexible guide sheets which surround it by fixing means, by gluing, clamping, clipping, or any other method.
- All of the light sources can be controlled by the control element 540, via a set of wires, each wire connecting the control element 540 to a light source.
- the wires can be carried by a 550 structure making it possible to centralize the wires and route them to the control element, which reduces bulk, and also makes it possible to hide the wires.
- each flexible guide sheet can be rectangular or square in shape, with at least one dimension between 2 and 10 cm.
- flexible guide sheets are squares or rectangles, with:
- each flexible guide sheet is a square of 3cm by 3cm.
- the second embodiment and the third embodiment can be combined: at least two flexible guide layers are superimposed, and one of the two flexible guide layers is associated with two light injection guides capable of injecting light the light selectively in two distinct parts of the guide sheet, two patterns being respectively engraved in the two parts;
- At least two flexible guide sheets are placed one at a time side of the other, and one of the two flexible guide sheets is associated with two light injection guides capable of injecting light selectively into two distinct parts of the guide sheet, two patterns being respectively engraved in the two parts;
- the third embodiment and the fourth embodiment can be combined: at least two flexible guide sheets are placed next to each other, and one of the two flexible guide sheets is superimposed with a third flexible guide sheet of the light module;
- the second embodiment, the third embodiment and the fourth embodiment can be combined: at least two flexible guide sheets are placed next to each other, and one of the two guide sheets flexible guides is superimposed with a third flexible guide sheet of the light module, and one of these three flexible guide sheets is associated with two light injection guides capable of injecting light selectively into two distinct parts of the sheet of light. guidance, two patterns being respectively engraved in the two parts.
- Figure 6 illustrates rear exterior equipment 600 for a motor vehicle according to embodiments of the invention.
- the rear exterior equipment 600 comprises a light module 100, 300, 400, 500 according to one of the embodiments described above, or according to a combination of several of the embodiments described above, as well as a surface rear external 620 on which the light module 100, 300, 400, 500 is fixed.
- rear external surface we mean a surface accessible by a user when the rear exterior equipment is mounted at the rear of the vehicle. It is therefore distinguished from an internal surface which is only accessible by dismantling said equipment, or when the equipment is not mounted in the vehicle.
- “Rear exterior” equipment means any equipment comprising at least one external surface designed to be accessible to a user from the outside at the rear of the motor vehicle. It can thus be an element of bodywork at the rear of the vehicle or rear lighting device such as signaling devices at the rear of the vehicle.
- the light module 100, 300, 400, 500 can for example be inserted into a frame or a support of the rear exterior equipment 600, provided for this purpose, having in particular a shape complementary to the light module 100, 300, 400, 500, and held in position by gluing, screwing, clipping, tightening, or any other type of holding means or fixing means.
- the light module 100, 300, 400, 500 is directly glued to the external surface 620 of the rear exterior equipment 600.
- the rear exterior equipment 600 may also comprise a protective layer 610. No restriction is attached to such a protective layer 610, which provides at least mechanical protection by covering the light module 100, 300, 400, 500.
- the mechanical protection layer covers the entire light module 100, 300, 400, 500, which increases its mechanical protection and therefore its lifespan.
- the exterior equipment 600 for motor vehicles is particularly exposed to mechanical shocks, as well as to bad weather such as rain or hail in particular.
- the protective layer 610 may include an anti-UV treatment or may include a material filtering ultraviolet rays, the protective layer 610 thus simultaneously provides mechanical protection but also makes it possible not to degrade the pattern or patterns. engraved in the light module 100, 300, 400, 500.
- the light module 100, 300, 400, 500 is capable of forming one or more patterns 630 comprising a symbol 631 as shown in Figure 6. Such an example of pattern is given for illustrative purposes only, as explained previously.
- the pattern 630 is formed by a single flexible guide sheet of a light module 100;
- the pattern 630 is formed by a single flexible guide sheet of a light module 300, but the symbol 631 can be broken down into two parts and each part of the symbol 631 can be projected by selective injection into two injection elements facing distinct sections of the edge of the flexible guide sheet, so as to project the two parts of the symbols 631 into two distinct zones.
- the pattern 630 comprises two distinct patterns, each pattern being able to be projected into a part of the flexible guide sheet by selective injection into one of the injection elements.
- the projected pattern can thus include one symbol, the other symbol, both symbols or no symbol. More generally, selective injection into one, the other or both injection elements makes it possible to dynamically vary the projected pattern 630;
- the pattern 630 is formed by a matrix of at least two flexible guide sheets next to each other.
- a first flexible guide sheet projects part of the symbol 631 and a second flexible guide sheet projects another part of the symbol 631.
- the light module 500 comprises more than two flexible guide sheets, and each flexible guide sheet is capable of projecting part of the symbol 631.
- each symbol can be produced by four flexible guide layers.
- each symbol can be projected into a given area of the light module 100, 300, 400, 500.
- a first symbol can be projected into a first given area of the light module, and a second symbol can be projected into a second given zone of the light module.
- control element 640 can vary the color of the pattern 630; - the control element can activate or deactivate some of the light sources.
- FIGS 7, 8a and 8b illustrate a first embodiment of rear exterior equipment 700 according to the invention.
- the rear exterior equipment 700 may include an overlay:
- a panel 701 capable of being arranged at the rear of a vehicle. It may for example be a panel having an appearance or color different from the rest of the vehicle body, and with a shape defining a signature of the vehicle. Panel 701 can for example be a black panel;
- the encapsulation layer 702 can have the function of encapsulating the light module 500 between the encapsulation layer 702 and the panel 701.
- the encapsulation layer 702 is at least partially transparent or even completely transparent.
- the panel 701, the light module 500 and the encapsulation layer 702 have identical shapes and completely overlap.
- the light module 500 may only partially cover the panel 701.
- the panel 701 is located towards the interior of the vehicle while the encapsulation layer 702 is located towards the exterior of the vehicle.
- Figure 8a presents a view of the rear exterior equipment 700 presented with reference to Figure 7, when the light source(s) of the light module of the equipment 700 are off.
- the rear exterior equipment 700 then has the appearance of the panel 701, possibly modulated by the encapsulation layer 702 when it is not completely transparent.
- the rear exterior equipment 700 can be black.
- Figure 8b presents a view of the rear exterior equipment 700 presented with reference to Figure 7, when at least one of the light sources of the light module of the equipment 700 is lit.
- the three light sources 720.1, 720.2 and 720.3 are lit, for illustration purposes.
- the patterns engraved in each of the flexible guide layers of the light module 500 can be different as shown in Figure 8b.
- the central guide sheet, associated with the second light source 730.2 can for example have a homogeneous pattern, that is to say that the flexible guide sheet reflects the light from the light source 730.2 over its entire surface.
- the central part of the equipment 700 then has the color of the light injected by the second light source 730.2, which can be white or red for example.
- a homogeneous pattern 800.2 is thus displayed in the central part of the rear exterior equipment 700.
- a red light can advantageously be displayed when the vehicle brakes, in order to signal to vehicles following that the vehicle is decelerating.
- the lateral guide layers can be engraved with distinct patterns 800.1 and 800.3, for example symmetrical as shown in Figure 8b. Patterns 800.1 to 800.3 may be complementary and may thus contribute to indicating the same signaling information, or may indicate different signaling information.
- FIGS 9a and 9b illustrate a second embodiment of rear exterior equipment 900.
- the equipment 900 may include one or more light modules 400 according to the embodiment of Figure 4, in which at least two flexible guide layers are superimposed.
- the rear exterior equipment 900 comprises three light modules of this type, namely a first light module 400.1 in a central position, connecting the two rear lights of the motor vehicle, a second light module 400.2 positioned on the left rear lights and a third light module 400.3 positioned on the right rear lights.
- each of the light modules 400.1 to 400.3 thus comprises several superimposed flexible guide layers.
- each light module 400.1 to 400.3 comprises two superimposed flexible guide sheets, namely a first and a second flexible guide sheet.
- the first flexible guide sheet of each light module is associated with a first light source and a first light injection element and the second flexible guide sheet of each light module is associated with a second light source and a second light injection element.
- the first flexible guide sheet of the light module 400.1 is engraved according to a first pattern 900.11 and the first pattern 900.11 is made visible by the activation of the first light source of the light module 400.1;
- the first flexible guide sheet of the light module 400.2 is engraved according to a second pattern 900.21 and the second pattern 900.21 is made visible by the activation of the first light source of the light module 400.2;
- the first flexible guide sheet of the light module 400.3 is engraved according to a third pattern 900.31 and the third pattern 900.31 is made visible by the activation of the first light source of the light module 400.2.
- the first, second and third patterns may be the same or may differ.
- the two side patterns namely the second pattern 900.21 and the third pattern 900.31 may be identical to each other, but may differ from the first pattern 900.11 in the central position.
- Each pattern can correspond to signaling information given to the attention of vehicles following the motor vehicle comprising the rear exterior equipment 900.
- the second flexible guide sheet of the light module 400.1 is engraved according to a fourth pattern 900.12 and the fourth pattern 900.12 is made visible by the activation of the second light source of the light module 400.1;
- the second flexible guide sheet of the light module 400.2 is engraved according to a fifth pattern 900.22 and the second pattern 900.22 is made visible by the activation of the second light source of the light module 400.2;
- the second flexible guide sheet of the light module 400.3 is engraved according to a sixth pattern 900.32 and the sixth pattern 900.32 is made visible by the activation of the second light source of the light module 400.2.
- the fourth, fifth and sixth patterns may be the same or may differ.
- the two lateral patterns namely the fifth pattern 900.22 and the sixth pattern 900.32 may be identical to each other, but may differ from the fourth pattern 900.12 in the central position.
- Each pattern can correspond to signaling information given to the attention of vehicles following the motor vehicle comprising the rear exterior equipment 900.
- the first pattern 900.11 is different from the fourth pattern 900.12.
- the signaling information emitted by the light module 400.1 can vary and be controlled by a control unit which selectively supplies the first source or the second source of the light module 400.1. The same goes for the other light modules:
- the signaling information emitted by the light module 400.2 can vary and be controlled by a control unit which selectively supplies the first source or the second source of the light module 400.2;
- - the third pattern 900.31 is different from the sixth pattern 900.32.
- the signaling information emitted by the light module 400.3 can vary and be controlled by a control unit which selectively supplies the first source or the second source of the light module 400.3.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2208956A FR3139302B1 (fr) | 2022-09-07 | 2022-09-07 | Equipement extérieur arrière pour véhicule automobile avec un module lumineux à nappe de guidage flexible |
| PCT/EP2023/074493 WO2024052422A1 (fr) | 2022-09-07 | 2023-09-06 | Titre de l'invention : equipement extérieur arrière pour véhicule automobile avec un module lumineux à nappe de guidage flexible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4584532A1 true EP4584532A1 (fr) | 2025-07-16 |
Family
ID=85222609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23767881.8A Pending EP4584532A1 (fr) | 2022-09-07 | 2023-09-06 | Titre de l'invention : equipement extérieur arrière pour véhicule automobile avec un module lumineux à nappe de guidage flexible |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4584532A1 (fr) |
| JP (1) | JP2025529983A (fr) |
| CN (1) | CN119816685A (fr) |
| FR (1) | FR3139302B1 (fr) |
| WO (1) | WO2024052422A1 (fr) |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5943234U (ja) * | 1982-09-14 | 1984-03-21 | セントラル自動車株式会社 | ランプカバ− |
| JP3544010B2 (ja) * | 1994-10-25 | 2004-07-21 | 本田技研工業株式会社 | 車両用灯火器 |
| JP2002100216A (ja) * | 2000-09-22 | 2002-04-05 | Ichikoh Ind Ltd | 車両用灯具 |
| US20100040986A1 (en) * | 2006-09-22 | 2010-02-18 | Masatoshi Yamaguchi | Process for manufacturing light guide |
| JP2013525955A (ja) * | 2010-04-16 | 2013-06-20 | フレックス ライティング 2,エルエルシー | フィルムベースのライトガイドを備える照明デバイス |
| KR101821727B1 (ko) * | 2010-04-16 | 2018-01-24 | 플렉스 라이팅 투 엘엘씨 | 필름 기반 라이트가이드를 포함하는 프론트 조명 디바이스 |
| NL2007980C2 (en) * | 2011-12-16 | 2013-06-18 | Dqm B V Nederland | Device and method to illuminate objects. |
| DE112013002944T5 (de) * | 2012-06-13 | 2015-02-19 | Innotec, Corp. | Flexibler Hohllichtleiter |
| EP3094520A1 (fr) * | 2014-01-16 | 2016-11-23 | Magna International Inc. | Système d'éclairage transparent à éléments empilés pour composants de garnissage de véhicules |
| WO2018155482A1 (fr) * | 2017-02-22 | 2018-08-30 | 富士フイルム株式会社 | Film de guidage de lumière et unité de rétroéclairage |
| CN109027948A (zh) * | 2018-09-12 | 2018-12-18 | 华域视觉科技(上海)有限公司 | 导光片、汽车灯具及汽车 |
| DE102019001952A1 (de) * | 2019-03-20 | 2020-03-19 | Daimler Ag | Anordnung zur Darstellung einer Abbildung |
| JP2020155384A (ja) * | 2019-03-22 | 2020-09-24 | しげる工業株式会社 | 自動車の照明装置 |
| US11513274B2 (en) * | 2019-08-01 | 2022-11-29 | Azumo, Inc. | Lightguide with a light input edge between lateral edges of a folded strip |
| FR3101824A1 (fr) * | 2019-10-15 | 2021-04-16 | Compagnie Plastic Omnium Se | Encapsulation d’un tissu lumineux disposé sur une paroi par injection d’un matériau thermodurcissable |
| CN115052783B (zh) * | 2020-01-21 | 2025-08-01 | 株式会社小糸制作所 | 车辆用灯具 |
| IT202000002335A1 (it) * | 2020-02-06 | 2021-08-06 | M A S Medical Analitical Service Di Molinari Giorgio E C Snc | Parafango luminoso per ruote di veicoli e relativo processo di fabbricazione |
| CN111347966A (zh) * | 2020-02-28 | 2020-06-30 | 华域视觉科技(上海)有限公司 | 一种信号显示系统、方法及车辆 |
-
2022
- 2022-09-07 FR FR2208956A patent/FR3139302B1/fr active Active
-
2023
- 2023-09-06 WO PCT/EP2023/074493 patent/WO2024052422A1/fr not_active Ceased
- 2023-09-06 JP JP2025514200A patent/JP2025529983A/ja active Pending
- 2023-09-06 EP EP23767881.8A patent/EP4584532A1/fr active Pending
- 2023-09-06 CN CN202380063497.9A patent/CN119816685A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3139302B1 (fr) | 2024-09-06 |
| JP2025529983A (ja) | 2025-09-09 |
| FR3139302A1 (fr) | 2024-03-08 |
| WO2024052422A1 (fr) | 2024-03-14 |
| CN119816685A (zh) | 2025-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2536972B1 (fr) | Dispositif optique d'un vehicule automobile comprenant une source surfacique de lumiere | |
| FR2957133A1 (fr) | Dispositif d'eclairage et/ou de signalisation d'un vehicule automobile comprenant une source surfacique de lumiere | |
| FR3065818A1 (fr) | Module lumineux pour un vehicule automobile configure pour projeter un faisceau lumineux formant une image pixelisee | |
| EP4584532A1 (fr) | Titre de l'invention : equipement extérieur arrière pour véhicule automobile avec un module lumineux à nappe de guidage flexible | |
| WO2023232909A1 (fr) | Equipement extérieur pour véhicule automobile avec un module lumineux à nappe de guidage flexible | |
| WO2024126862A1 (fr) | Équipement intérieur avec un module d'affichage avec une couche de matériau électrochrome | |
| WO2023232908A1 (fr) | Equipement intérieur pour véhicule automobile avec un module lumineux à nappe de guidage flexible | |
| WO2024052030A1 (fr) | Module lumineux à nappe de guidage flexible avec antenne intégrée | |
| WO2023232827A1 (fr) | Ensemble rétroéclairé par un module lumineux avec nappe de guidage flexible | |
| EP4532980A1 (fr) | Affichage de motifs lumineux sur nappe de guidage flexible | |
| EP4090555B1 (fr) | Dispositif lumineux de véhicule automobile incorporant un écran | |
| WO2023232468A1 (fr) | Module lumineux à plusieurs nappes de guidage flexibles | |
| EP4532979A1 (fr) | Dispositif lumineux avec un module lumineux a nappe de guidage flexible, agence devant un module d'eclairage | |
| FR3063335A1 (fr) | Dispositif lumineux pour vehicule automobile comprenant une source de lumiere comportant une pluralite d'elements emissifs | |
| WO2023232706A1 (fr) | Dispositif lumineux avec un module lumineux agence devant un module d´eclairage | |
| WO2024180219A1 (fr) | Module lumineux par empilement de guides de lumière à nappe de guidage | |
| EP4370376B1 (fr) | Module lumineux comprenant un élément à taux de transmission de lumière variable | |
| FR3153134A3 (fr) | Module lumineux avec film électrochrome | |
| FR3143718A1 (fr) | Equipement extérieur avec un module d’affichage avec une couche de matériau électrochrome | |
| FR3146333A3 (fr) | Module lumineux par empilement de guides de lumière à nappe de guidage | |
| WO2024133351A1 (fr) | Module lumineux comprenant un guide de lumière à nappe de guidage pour affichage à intensité lumineuse homogène | |
| WO2025021721A1 (fr) | Dispositif lumineux de véhicule comportant une source de lumière blanche et un guide de lumière muni d'une structure multicouche permettant d'obtenir une couleur prédéterminée avec un circuit simplifié | |
| WO2025021720A1 (fr) | Dispositif lumineux de véhicule comportant une source de lumière blanche et un guide de lumière muni d'une structure multicouche permettant d'obtenir une couleur et un ton prédéterminés | |
| FR3144554A3 (fr) | Dispositif de chauffage et d’éclairage, notamment pour véhicule |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20250221 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |