An interior equipment for a motor vehicle having a light-emitting module with a flexible guide sheet

Abstract

The present invention relates to an interior fitting (600) for a motor vehicle, said fitting comprising an outer face (620) on which a light-emitting module (100, 300; 400; 500) is arranged. The light-emitting module comprises at least one assembly of flexible guide sheets, each flexible guide sheet of the assembly receiving a light beam at at least one end of the flexible guide sheet and being suitable for reflecting the light beam in a direction substantially perpendicular to the surface of the flexible guide sheet according to at least one pattern (630) etched in the flexible guide sheet. The light-emitting module also comprises at least one light-emitting element suitable for receiving light and distributing the light in the assembly of flexible guide sheets, and at least one light source suitable for injecting light into the light-emitting element.

Description

Technical Field

[0001] The present invention relates in particular to the field of light-emitting modules for interior fittings of motor vehicles, in particular light-emitting modules comprising an optical waveguide. The present invention is applied in particular, but not exclusively, to the display of light patterns in interior fittings of motor vehicles.

Background Art

[0002] In recent years, it has become common to display light patterns inside motor vehicles in order to transmit information, for aesthetic customization purposes, or to create an atmosphere.

[0003] Moreover, it is preferable to display such patterns with high resolution.

[0004] For this reason, using a screen such as an LCD screen is a known practice.

[0005] However, this technology is not only expensive, but is also susceptible to environmental conditions such as temperature, humidity or ultraviolet radiation.

[0006] Furthermore, it is preferable to have a flexible light-emitting module so that it can be easily incorporated into any type of fitting. This is particularly the case for the interior of motor vehicles which have non-flat surfaces on their interior fittings.

[0007] Furthermore, there are significant space constraints inside motor vehicles, and it is important to provide a compact light-emitting module.

[0008] Finally, the above-mentioned solutions have the drawback of high energy consumption, and the larger the surface area of the fitting in which the light-emitting module is incorporated, the greater the energy consumption.

[0009] Accordingly, there is a need for interior equipment for motor vehicles that is robust, inexpensive, highly energy efficient, compact, and easy to integrate, and includes a light emitting module adapted to display an accurate light pattern. SUMMARY OF THE INVENTION

[0010] The present invention improves this situation.

[0011] For this reason, a first aspect of the present invention relates to interior equipment for motor vehicles, the equipment including an outer surface on which a light emitting module is disposed, the light emitting module comprising: an assembly of at least one flexible guide sheet, each flexible guide sheet of the assembly receiving light through at least one end of the flexible guide sheet and being adapted to reflect the light in a direction substantially perpendicular to the surface of the flexible guide sheet according to at least one pattern etched in the flexible guide sheet; at least one light injection element adapted to receive light and distribute the light in an assembly of at least one flexible guide sheet; and at least one light source adapted to inject light into the at least one light injection element.

[0012] By using flexible guide sheets, it becomes easier to integrate the light emitting module into interior equipment for motor vehicles, and the thickness of the light emitting module can be reduced, making it more compact. In addition, it is possible to illuminate a large surface area while limiting the number of light sources used.

[0013] According to an embodiment, the interior equipment may further include a touch sensitive layer adapted to receive touch input from a user, the touch sensitive layer being disposed between the outer surface of the equipment and the light emitting module or under the outer surface of the equipment.

[0014] Accordingly, the light-emitting module may be connected to the touch-sensitive layer to receive touch input from a vehicle user, thereby optimizing the use of the limited space inside the motor vehicle.

[0015] In addition, the touch-sensitive layer may be a capacitive layer.

[0016] Such a capacitive layer has good impact resistance.

[0017] According to an embodiment, the interior fitting may further include a control element adapted to control the at least one light source.

[0018] Thereby, it becomes possible to manage the light source, and thus the pattern displayed on the light-emitting module changes. Accordingly, it is possible to display an animated or dynamic information that emits light.

[0019] In addition, the control element may be adapted to receive touch input data from the touch-sensitive layer and may be configured to control the at least one light source according to the touch input data.

[0020] Accordingly, by using the touch-sensitive layer to manage the display of the pattern of the light-emitting module, it becomes possible to provide the user with light emission feedback for touch input.

[0021] In addition, the light-emitting module may be adapted to display at least one symbol in a given area of the light-emitting module based on the pattern of each flexible guide sheet of the assembly, and the touch-sensitive area of the touch-sensitive layer facing the given area of the light-emitting module may be adapted to receive touch input and generate touch input data corresponding to the touch-sensitive area.

[0022] This provides light emission feedback to the touch-sensitive area where touch input is performed, making it easier for the user to ensure accurate touch input.

[0023] In addition, the light-emitting module may be adapted to display at least a first symbol in a first given area of the light-emitting module and at least a second symbol in a second given area of the light-emitting module based on the pattern of each flexible guide sheet of the assembly. The first touch-sensitive area of the touch-sensitive layer may face the first given area of the light-emitting module, and the second touch-sensitive area of the touch-sensitive layer may face the second given area of the light-emitting module. When a first touch input is received in the first touch-sensitive area, the touch-sensitive layer may generate first touch input data, and when a second touch input is received in the second touch-sensitive area, the touch-sensitive layer may generate second touch input data.

[0024] This means that several different touch inputs by the user can be input via the same equipment, enabling more complex functions thereby.

[0025] According to an embodiment, the light-emitting module may include a flexible guide sheet, a light-emitting element, and a light source. The light source may be adapted to project light in a first wavelength range and a second wavelength range different from the first range. The control element is adapted to control the light source to project light in the first range or the second range.

[0026] Therefore, the equipment is adapted to dynamically control to change the color of the projected pattern.

[0027] In addition, the control element may be adapted to control the light source to project light in the first range or the second range in response to an animation command.

[0028] Therefore, it is possible to display the ambient light-emitting animation or dynamic information.

[0029] In addition, or alternatively, the control element may be adapted to control the light source to project light in a first range or a second range according to the touch input data.

[0030] Therefore, since the color of the pattern depends on the user's touch input, the interaction with the user is improved.

[0031] According to the first embodiment or the second embodiment, the light-emitting module may include a single flexible guide sheet.

[0032] Therefore, a simple and inexpensive light-emitting module can be used while displaying a light pattern on a large and possibly non-flat surface.

[0033] Alternatively, according to the second embodiment, or according to the third or fourth embodiment, the light-emitting module may include a first injection element and a second injection element, and the at least one light source may be adapted to selectively inject light into the first injection element and the second injection element. The assembly of the first light injection element and the at least one flexible guide sheet may be arranged to project light according to a first pattern, and the assembly of the second light injection element and the at least one flexible guide sheet may be arranged to project light according to a second pattern.

[0034] Therefore, the first injection element and the second injection element may be used separately, thereby enabling an animation due to a change in the color or a spatial change of the light rays emitted from the assembly.

[0035] In addition, the light-emitting module of the interior equipment may include a first light source adapted to inject light into the first light injection element and a second light source adapted to inject light into the second light injection element.

[0036] Therefore, by managing sources that operate independently of each other, it becomes possible to control dynamic displays.

[0037] Furthermore, the first light source may be adapted to generate light in a first wavelength range, and the second light source may be adapted to generate light in a second wavelength range different from the first range.

[0038] This makes it possible to dynamically change the color of the displayed pattern.

[0039] According to a second embodiment, the first injection element may be arranged to inject light into a first portion of an end of the guide sheet of the assembly, and the second injection element may be arranged to inject light into a second portion of an end of the flexible guide sheet. The first portion of the flexible guide sheet located opposite the first portion of the end is etched according to a first pattern, and the second portion of the flexible guide sheet located opposite the second portion of the end is etched according to a second pattern.

[0040] This makes it possible to generate several patterns at separate spatial positions with a single flexible guide sheet, thereby limiting the cost and space requirements associated with the light emitting module.

[0041] Alternatively, according to third and fourth embodiments, the assembly may include at least first and second flexible guide sheets, a first pattern is etched on the first flexible guide sheet, a second pattern is etched on the second flexible guide sheet, the first injection element is arranged to inject light into an end of the first flexible guide sheet, and the second injection element is arranged to inject light into an end of the second flexible guide sheet.

[0042] This makes it possible to generate complex variations of the pattern and / or to provide a light emitting module that covers a large light emitting surface area.

[0043] In addition, according to the third embodiment, the first and second guide sheets may overlap within the light emitting module in order to project the first and second patterns onto the common area of the light emitting module.

[0044] This makes it possible to change the pattern projected onto the common area. By dynamically changing the pattern or the color of the common area, an animation can be generated.

[0045] Furthermore, since the flexible guide sheets are thin, they can be stacked without occupying a large space, which is particularly advantageous in a constrained environment such as inside an automotive vehicle.

[0046] Alternatively, according to the fourth embodiment of the present invention, the first and second guide sheets may be arranged adjacent to each other so as to project the first and second patterns to separate positions.

[0047] This makes it possible to cover a particularly large radiation surface area exceeding 100 cm2, while at the same time integrating irregular and complex surfaces.

[0048] In addition, the light emitting modules of the interior fittings may include three or more flexible guide sheets arranged adjacent to each other so as to form a matrix of flexible guide sheets, each flexible guide sheet being associated with a light emitting element adapted to emit light at an end of the flexible guide sheet, and each flexible guide sheet having at least one pattern etched into the sheet.

[0049] This makes it possible to generate a complex light animation as the projected light rays change spatially, while at the same time facilitating incorporation into fittings having complex surfaces.

[0050] In addition, in the fourth embodiment, the flexible guide sheet of the assembly may have the same square or rectangular shape.

[0051] Accordingly, the manufacturing of the light-emitting module is simplified and the associated costs are reduced.

[0052] In addition, in the fourth embodiment, the dimensional size of the guide sheet may be 3 to 25 cm, particularly 3 to 5 centimeters.

[0053] Accordingly, the size of the matrix element, which is a flexible guide sheet, is reduced, making it possible to manufacture a light-emitting module provided with a large number of flexible guide sheets. Thereby, it becomes possible to display many patterns, and thus it becomes possible to generate a complex light animation.

[0054] In addition, according to the second, third, or fourth embodiment, a control element may be adapted to control the at least one source so as to selectively project light according to the first pattern and the second pattern.

[0055] Accordingly, it becomes possible to control, by a single element, the light-emitting module to selectively emit light to various light-emitting elements, thereby improving the synchronism of displaying light patterns relative to each other.

[0056] In addition, the control element may be adapted to dynamically control the at least one source so as to generate an animation of light composed of at least the first and second patterns.

[0057] Thereby, it becomes easier to generate an animation of light from the patterns.

[0058] According to an embodiment of the present invention, the interior fitting may be a dashboard of a motor vehicle.

[0059] Therefore, it becomes possible to display information to the passengers in the front seats of the vehicle or to create a glowing atmosphere. It is particularly important that information can be conveyed to the driver and that interaction with the driver is possible. Furthermore, the dashboard is composed of a non-flat surface, and therefore it is particularly advantageous to use a light-emitting module with a flexible guide sheet.

[0060] In addition, the dashboard may be provided with an inflatable safety device under the outer surface of the dashboard.

[0061] Since the light-emitting module is composed of a flexible guide sheet and can be easily deformed or torn, it becomes possible to deploy the inflatable safety device when impacted. Therefore, both the lighting / signal function and the safety function can be incorporated into the same equipment.

[0062] Alternatively, the interior equipment may be the seat of the motor vehicle, the roof of the motor vehicle or the rear shelf of the motor vehicle.

[0063] All of the equipment may have a non-flat surface and / or there may be imposed significant compactification constraints.

[0064] According to an embodiment of the present invention, each flexible guide sheet of the assembly may have a thickness of 0.2 to 1 mm.

[0065] With such a thickness, the flexible guide sheet becomes highly flexible and is particularly easy to incorporate into a curved support.

[0066] According to an embodiment of the present invention, at least one flexible guide sheet of the assembly may be made of a transparent material.

[0067] This not only improves the feasibility of incorporating the light-emitting module, but also improves the aesthetic appearance. Note that at least one of the flexible guide sheets may be translucent or opaque.

[0068] In addition, each flexible guide sheet within the assembly may be composed of polycarbonate (PC), polymethyl methacrylate (PMMA), thermoplastic polyurethane (TUP), or polyethylene terephthalate (PET) film.

[0069] Such materials enable the production of transparent and flexible guide sheets.

[0070] According to an embodiment of the present invention, each flexible guide sheet may include a film composed of a microstructure, and each pattern of the first and second patterns is etched by ultraviolet printing of the microstructure of the film.

[0071] Such a microstructure enables the generation of high-resolution patterns while maintaining a high level of transparency of the flexible guide sheet.

[0072] In addition, for each flexible guide sheet, the surface density of the microstructure may be decreased along with the distance from the end of the guide sheet where light is emitted.

[0073] Therefore, the uniformity of the pattern projected by the flexible guide sheet is improved.

[0074] According to an embodiment of the present invention, each injection element may include a plurality of injection guides, and each injection guide is adapted to receive light from one end of the guide and direct this light to a predetermined longitudinal position of the injection element, and the longitudinal positions of all the injection guides are different so as to distribute the light longitudinally within the injection element.

[0075] This enables the uniform distribution of light to the end of the flexible guide sheet, thereby improving the quality of the projection of the first and second patterns.

[0076] Other features and advantages of the present invention will become apparent by examining the following embodiments for carrying out the invention and the accompanying drawings.

Brief Description of the Drawings

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Figure 1

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Figure 2

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Figure 3

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Figure 4

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Figure 5

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Figure 6

Modes for Carrying Out the Invention

[0083] In this specification, the interior equipment or the light-emitting module is focused on features different from those known in the prior art.

[0084] FIG. 1 shows a light-emitting module 100 of a motor vehicle according to a first embodiment of the present invention.

[0085] The light-emitting module 100 includes a flexible guide sheet 110 adapted to receive light rays via an end portion 114 and reflect the light rays in a direction Z substantially perpendicular to the surface of the flexible guide sheet (and thus extending in the plane X - Y of FIG. 1).

[0086] The guide sheet is understood to mean an optical guide element in which one of its dimensions is much smaller, for example by more than one order of magnitude, than the other two dimensions in space. As shown in FIG. 1, in this case, the thickness of the flexible guide sheet along the Z axis is at least two orders of magnitude smaller than the dimensions of the plane X - Y in which the flexible guide sheet 110 extends.

[0087] The flexible guide sheet 110 may include a flexible film 111, and at its core, includes at least one end portion 114 adapted to guide light rays as a whole in the direction X, and a series of microstructures 113 adapted to reflect the light rays guided within the flexible film 111 to the outside of the flexible guide sheet 110, particularly in one or more directions substantially along the axis Z.

[0088] The flexible film 111 may be a base film made of polycarbonate (PC), polymethyl methacrylate (PMMA), thermoplastic polyurethane (TUP) or polyethylene terephthalate (PET). The flexible film 111 may have a thickness of 12 to 1000 micrometers, i.e., a dimension along the axis Z. More specifically, the thickness of the flexible film 111 may be 50 to 1000 micrometers, for example, 200 to 500 micrometers. Alternatively, the flexible guide sheet 110 has a thickness of 200 to 1000 micrometers.

[0089] By combining the above materials with the thin thickness as described above, it becomes possible to obtain the flexible film 111. Regarding the composition of the flexible film 111, other materials may be considered. However, according to the present invention, it is preferable to provide a deformable transparent material.

[0090] A thin coating of the microstructure 113 may be applied to one side of the surface of the flexible film 111, or may be integrated into the flexible film 111. The coating 113 of the microstructure may particularly have a thickness of less than 20 micrometers along the axis Z.

[0091] Such a microstructure 113 may generally take the form of protrusions, on which light rays are reflected in a direction substantially along the axis Z. Such a microstructure 113 may be adapted so that the light rays emerging from the flexible film 111 form a pattern. For this purpose, the microstructure 113 may be etched by ultraviolet printing according to a desired pattern.

[0092] The microstructure 113 is a structure or unevenness of the flexible film and has dimensions of several micrometers or less. Therefore, the microstructure also targets nanometer-scale structures. Such a size of the microstructure 113 makes it possible to ensure high transparency of the flexible film 111. In particular, by using the microstructure 113, transparency on the order of 97% can actually be obtained. Alternatively, the flexible guide sheet may be translucent or opaque.

[0093] Advantageously, the microstructure 113 may be distributed along the axis X such that the linear density of the microstructure 113 is proportional to the distance from the end portion 114 that receives the light rays emitted by the injection element 120. In other words, the farther the microstructure 113 is from the end portion 114, the more densely they are grouped together. Such a distribution advantageously makes it possible to ensure that the emission intensity of the pattern emitted by the flexible guide sheet 110 is uniformly distributed along the axis X.

[0094] The flexible guide sheet 110 may further include one or two optional protective layers 112.1 and 112.2 that enable mechanical protection of the flexible film 111. Further, at least one of the protective layers 112.1 and 112.2 may include an ultraviolet treatment, thereby enabling protection of the flexible film from ultraviolet light when the microstructure 113 is etched. Without such ultraviolet protection, the pattern projected by the flexible guide sheet 110 is likely to deteriorate over time, especially when exposed to sunlight.

[0095] The flexible film 111 and the protective layers 112.1 and 112.2 are shown spaced apart in FIG. 1 for illustrative purposes only. However, it will be understood that the protective layers 112.1 and 112.2 may be attached to the flexible film, particularly by lamination.

[0096] Since the guide sheet 110 is flexible, it is not necessarily contained in a plane and may be curved depending on the location where it is placed and the mechanical constraints applied.

[0097] The light emitting module 100 shown in FIG. 1 also includes a light emitting element 120 that extends in the longitudinal direction of direction Y and is adapted to emit light along an axis perpendicular to its longitudinal direction, for example, axis X as shown in FIG. 1 when arranged as shown, and is therefore also referred to as a light bar.

[0098] The light emitting element 120 has a rectangular or square cross-section in FIG. 1. However, the light emitting element 120 may have a circular, elliptical, or polygonal cross-section.

[0099] Therefore, the light emitting element 120 includes an emission surface 122 extending in the longitudinal direction, and is adapted to emit light in a direction substantially perpendicular to the emission surface 122. The light emitting element 120 further includes an incident surface 121 adapted to receive light rays from the light source 130 at one end of the light emitting element 120. The light emitting element 120 is adapted to guide light longitudinally along the axis Y and distribute the light across the emission surface 122. The distribution of light by the emission surface 122 will be more clearly understood from the description of FIG. 2.

[0100] The light source 130 is not limited. The light source 130 may be adapted to generate light in a certain wavelength range. Such a range may be centered on visible colors to generate colored light, such as 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 narrow wavelength range can be generated by a laser type light source 130.

[0101] The light source 130 may be adapted to generate light corresponding to at least two separate wavelength ranges, for example, light corresponding to two separate colors. For example, it may be a light emitting source of the LED type, which has the advantages of small size, low energy consumption and not getting very hot, generates light of two different colors, and is adapted to be controlled by a control element (not shown). In particular, it may be an RGB type diode adapted to generate red, green and blue light. Therefore, the light emitting module according to the first embodiment may include a flexible guide sheet 110, an injection element 120, and a light source 130 adapted to generate light in at least two separate wavelength ranges.

[0102] The light source 130 may be controlled by a control element (not shown but described below) to change the color of the light projected, thereby generating light animation. Alternatively, the color may be dynamically controlled according to the touch input data received by the control element, as will be more clearly understood from the description of FIG. 6.

[0103] Alternatively, the light source 130 is not arranged directly opposite the incident surface 121 of the emission element 120. However, the light emitting module 100 further includes an optical fiber arranged between the source 130 and the emission element 120, so that the light source 130 can be moved away from the assembly formed by the emission element 120 and the flexible guide sheet 110.

[0104] FIG. 2 shows the emission element 120 of the light emitting module according to an embodiment of the present invention.

[0105] The emission element 120 may include a plurality of emission guides 123 adapted to receive light from the source 130 through the incident surface 121 and guide this light to the longitudinal positions of the emission surface 122. The longitudinal positions of these light guides are separately present so that light is distributed to at least some longitudinal positions on the emission surface 122.

[0106] Thereby, it becomes possible to emit light at different longitudinal positions along the axis Y on the end portion 114. Each longitudinal position of the end portion 114 may correspond to a guide line of the flexible film 111, and along such a guide line, it is adapted to guide light along the axis X.

[0107] Therefore, by combining the flexible guide sheet 110, the emission element 120, and the source 130 in this way, it is possible to project light in the direction Z through a flexible, transparent, translucent, or opaque surface having good surface uniformity and following a predetermined pattern.

[0108] In practice, such a light emitting module may be capable of emitting a pattern having a luminance of 100 to 1000 candela per square meter with a light extraction efficiency that can range from 25% to 80%.

[0109] Details regarding the structure and arrangement of these elements 110, 120, and 130 are further described in an international patent application published as International Publication No. WO 2011 / 130715 A2.

[0110] The light-emitting module for vehicle interior equipment according to the present invention includes the following: - An assembly of at least one guide sheet, such as the flexible guide sheet 110 shown in FIG. 1, adapted to reflect light according to at least one pattern; - At least one light-emitting element, such as the injection element 120 described with reference to FIGS. 1 and 2; and - At least one light source, such as the light source 130 described above with reference to FIG. 1, adapted to emit light to the at least one injection element.

[0111] "Pattern" means any predetermined spatial distribution of the light emission intensity emitted by the light-emitting module. In particular, in this specification, it refers to a two-dimensional or one-dimensional pattern. Therefore, the pattern may include a two-dimensional shape or symbol obtained by the contrast between the light emission intensities at different positions on the plane X-Y of the flexible guide sheet 110. The pattern may also include a plurality of shapes or symbols. Alternatively, the pattern is directed to a predetermined or intended spatial distribution of the light emission intensity that does not cause any arbitrary general shape, such as a distribution that produces a group of light-emitting points, to appear. In the context of the present invention, the pattern is formed by injecting light into the injection element arranged with respect to the flexible guide sheet, and as a result, a pattern is formed on the flexible guide sheet. Therefore, the flexible guide sheet is adapted to project light according to at least one pattern, and the pattern may correspond to at least one shape or symbol. When combining the flexible guide sheet with a plurality of injection elements, the flexible guide sheet can also emit light according to at least two patterns.

[0112] In the first embodiment, the light-emitting module includes a single source, a single injection element, and a single flexible guide sheet adapted to form a pattern.

[0113] In the following second, third, and fourth embodiments, the light emitting module includes at least two injection elements similar to the injection element 120 described above. The embodiments may vary depending on the number of elements included in the light emitting module and their respective arrangements. However, the above-described explanations and definitions of the light source, injection elements, and flexible guide sheet apply to all embodiments.

[0114] Figure 3 shows a light emitting module 300 according to a second embodiment of the present invention.

[0115] In the second embodiment, several injection elements are arranged to inject light onto the same flexible guide sheet including a plurality of patterns.

[0116] In particular, in the example of FIG. 3, the first injection element 320.1 and the second injection element 320.2 are arranged to inject light onto the end 314 of the flexible guide sheet 310.

[0117] The first and second injection elements 320.1 and 320.2 may be similar to the injection element 120 described with reference to FIGS. 1 and 2. Similarly, the flexible guide sheet 310 may correspond to the flexible guide sheet 110 described above.

[0118] As shown in FIG. 3, the first injection element 320.1 and the second injection element 320.2 are arranged to inject light onto the end 314 at separate longitudinal positions along the axis Y.

[0119] Note that since the guide sheet 310 is flexible, it may be curved rather than flat. Therefore, FIG. 3 shows the light emitting module 300 when the guide sheet is flat, for example, when it is arranged on a flat and rigid support.

[0120] Accordingly, the first injection element 320.1 is adapted to inject light at the end 314, and then this light is guided by the flexible guide sheet 310 to the first part 315.1 of the flexible guide sheet 310. The second injection element 320.2 is adapted to inject light at the end 314, and then this light is guided to the second part 315.2 of the flexible guide sheet 310.

[0121] For this purpose, a first source 330.1 is arranged opposite the incident surface of the first injection element 320.1 so as to propagate light rays inside the first injection element 320.1 and thus towards the first part 315.1 of the flexible guide sheet 310. A second source 330.2 is arranged opposite the incident surface of the second injection element 320.2 so as to propagate light rays inside the second injection element 320.2 and thus towards the second part 315.2 of the flexible guide sheet 310.

[0122] Alternatively, a single light source may be provided, and the light emitting module 300 includes a first optical fiber adapted to transmit light from the single source to the incident surface of the first injection element 320.1 and a second optical fiber adapted to transmit light from the single source to the incident surface of the second injection element 320.2.

[0123] The first and second sources 330.1 and 330.2, or the single source, may be selectively injected into the first injection element 320.1 and / or the second injection element 320.2. Such selective injection may be controlled by a control element 340 connected to the two sources 330.1 and 330.2, or may be controlled by controlling the power supply to the two sources 330.1 and 330.2.

[0124] While the first pattern 316.1 is etched into the first portion 315.1, the second pattern 316.2 is etched into the second portion 315.2. Thus, by selectively injecting light into the first injection element 320.1 and / or the second injection element 320.2, it becomes possible to project the first pattern, the second pattern, either one of the patterns, or both patterns simultaneously, and by dynamically controlling in this way, it becomes possible to generate an animation from at least the first and second patterns, or to display dynamic luminous information. Alternatively, as can be more clearly understood from the description of FIG. 6, the selective injection of light may be dynamically controlled according to the touch input data received by the control element 340.

[0125] In the example of FIG. 3, the first and second patterns 316.1 and 316.2 each correspond to a symbol, and the symbols are different. However, according to the definition of "pattern" shown above, the pattern can be any intended or predefined spatial distribution of luminous intensity. Further, when the pattern is a shape or symbol, the first and second patterns 316.1 and 316.2 may have the same shape. As a result, an animation becomes possible by the pattern moving spatially from the first portion 315.1 to the second portion 315.2, or vice versa. Further, when the light sources 330.1 and 330.2 generate light of different colors, the colors projected onto each pattern may be different.

[0126] An example having two patterns and two injection elements is shown in FIG. 3. However, the first embodiment also targets a light-emitting module provided with a flexible guide sheet having three or more portions, each portion including an etched pattern, provided with at least three injection elements, and each injection element being arranged to face one of the portions.

[0127] For this purpose, a dedicated source may be provided for each injection element, or a single source including several optical fibers may be provided for this purpose.

[0128] Figure 4 shows a light-emitting module 400 according to a second embodiment of the present invention.

[0129] In the second embodiment of the present invention, the light-emitting module 400 includes at least a first flexible guide sheet 410.1 and a second flexible guide sheet 410.2, and the two flexible guide sheets overlap, which means that at least a part of the first flexible guide sheet 410.1 in the plane X-Y overlaps with at least a part of the second flexible guide sheet 410.2 in a common area corresponding to a series of positions in the plane X-Y.

[0130] Preferably, the first and second flexible guide sheets 410.1 and 410.2 have the same dimensions in the plane X-Y and completely overlap.

[0131] Note that since the guide sheet is flexible, it may be curved rather than flat. Therefore, Figure 4 shows the light-emitting module 400 when the guide sheet is flat, for example, when stacked on a flat support.

[0132] This overlapping is particularly advantageous because, as described above, the flexible guide sheet is preferably transparent.

[0133] Therefore, the first and second flexible guide sheets 410.1 and 410.2 are adapted to project a first pattern 416.1 and a second pattern 416.2, respectively, onto the common area.

[0134] The first injection element 420.1 is arranged to inject light at an end of the first flexible guide sheet 410.1, and the second injection element 420.2 is adapted and arranged to inject light at an end of the second guide sheet 410.2.

[0135] For this purpose, a first source 430.1 is arranged opposite the entrance surface of the first injection element 420.1 so as to propagate light rays towards the inside of the first injection element 420.1 and thus towards the first flexible guide sheet 410.1. A second source 430.2 is arranged opposite the entrance surface of the second injection element 420.2 so as to propagate light rays towards the inside of the second injection element 420.2 and thus towards the second flexible guide sheet 410.2.

[0136] Alternatively, a single light source may be provided, and the light emitting module includes a first optical fiber adapted to transmit light from the single source to the entrance surface of the first injection element 420.1 and a second optical fiber adapted to transmit light from the single source to the entrance surface of the second injection element 420.2.

[0137] The first and second sources 430.1 and 430.2, or the single source, may be selectively injected into the first injection element 420.1 and / or the second injection element 420.2. Such selective injection may be controlled by a control element 440 connected to the two sources 430.1 and 430.2, or may be controlled by controlling the power supply to the two sources 430.1 and 430.2.

[0138] While a first pattern 416.1 is etched into the first flexible guide sheet 410.1, a second pattern 416.2 is etched into the second flexible guide sheet 410.2. Thus, by selectively injecting light into the first injection element 420.1 and / or the second injection element 420.2, it is possible to project either the first pattern, the second pattern, either or both patterns simultaneously, and in this way, by dynamically controlling, it is possible to generate an animation from at least the first and second patterns. Alternatively, as more clearly understood from the description of FIG. 6, the selective injection of light may be dynamically controlled according to the touch input data received by the control element 440.

[0139] In the example of FIG. 4, the first and second patterns 416.1 and 416.2 have different symbols and, for the purposes of illustration, are the same as the patterns 316.1 and 316.2 of FIG. 3. However, according to the definition of the patterns given above, a pattern can be any intended or predefined spatial distribution of light emission intensity. Further, if the patterns are shapes or symbols, the first and second patterns 416.1 and 416.2 may have the same symbol but different colors. Specifically, if the sources 430.1 and 430.2 generate light of different colors, the colors projected onto each pattern may be different.

[0140] An example having two patterns, two injection elements and two flexible guide sheets is shown in FIG. 4. However, the second embodiment also encompasses a light emitting module comprising at least three flexible guide sheets having at least three injection elements, each injection element being arranged opposite one of the flexible guide sheets. For this purpose, a dedicated source may be provided for each injection element, or a single source comprising several optical fibers may be provided for this purpose.

[0141] At least one of the flexible guide sheets may be transparent. Alternatively, according to a second embodiment, the flexible guide sheet located below the light emitting module 400, in other words, the first flexible guide sheet 410.1 may be opaque or translucent. Conversely, the second flexible guide sheet 410.2 is transparent or translucent so as to be able to pass at least a part of the light emitted by the first flexible guide sheet 410.2. The second flexible guide sheet 410.2 may further be composed of a textured material so as to improve the aesthetic appearance of the light emitting module and / or to match the material of the interior equipment in which the light emitting module is incorporated. Such a textured material can also be used for the flexible guide sheets of the light emitting module according to the first, second and fourth embodiments. The textured material means, for example, any material having a predefined texture involved in the surface treatment of the flexible guide sheet. Examples of the textured material include grains, ridges or cracks, or any other texture elements.

[0142] FIG. 5 shows a light emitting module 500 according to a fourth embodiment of the present invention.

[0143] In a fourth embodiment of the present invention, the light emitting module 500 includes at least a first flexible guide sheet 510.1 and a second flexible guide sheet 510.2, and the two flexible guide sheets are arranged adjacent to each other. Therefore, the two flexible guide sheets are adapted to project light rays from separate positions in the plane X-Y in which the flexible guide sheet mainly extends.

[0144] Note that since the guide sheet is flexible, it may be curved instead of flat. Therefore, FIG. 5 shows the light emitting module 500 when the flexible guide sheet is flat, for example, when it is arranged on a flat and rigid support.

[0145] Accordingly, the first flexible guide sheet 510.1 is adapted to project a first pattern (not shown) at a first position on the X-Y plane, and the second flexible guide sheet 510.2 is adapted to project a second pattern 516.2 at a second position on the X-Y plane. The first and second positions are separate and, for example, adjacent to each other. Each pattern to be projected may include a symbol or a part of a symbol. If the pattern of one flexible guide sheet includes a part of a symbol, this part may complement another part of the symbol formed by the pattern of the other flexible guide sheet, or another part of the symbol formed by the pattern of another flexible guide sheet.

[0146] The first injection element 520.1 is arranged to inject light at an end of the first flexible guide sheet 510.1, and the second injection element 520.2 is arranged to inject light at an end of the second guide sheet 510.2.

[0147] The relative arrangement of each injection element with respect to the flexible guide sheet follows the description given above and will not be described in detail again with respect to the fourth embodiment of FIG. 5.

[0148] Inside the first injection element 520.1 and thus facing the incident surface of the first injection element 520.1 to propagate light rays towards the first flexible guide sheet 510.1, a first source 530.1 is arranged. Inside the second injection element 520.2 and thus facing the incident surface of the second injection element 520.2 to propagate light rays towards the second flexible guide sheet 510.2, a second source 530.2 is arranged.

[0149] Alternatively, a single light source may be provided, and the light emitting module 500 includes a first optical fiber adapted to transmit light from the single source to the incident surface of the first injection element 520.1, and a second optical fiber adapted to transmit light from the single source to the incident surface of the second injection element 520.2.

[0150] Light may be selectively emitted to the first injection element 520.1 and / or the second injection element 520.2 by the first and second light sources 530.1 and 530.2, or a single light source. Such selective emission may be controlled by a control element 540 connected to the two light sources 530.1 and 530.2, or may be controlled by controlling the power supply to the two light sources 530.1 and 530.2. Alternatively, as will be more clearly understood from the description of FIG. 6, the selective emission of light may be dynamically controlled according to the touch input data received by the control element 540.

[0151] While the first pattern is etched on the first flexible guide sheet 510.1, the second pattern is etched on the second flexible guide sheet 510.2. Therefore, by selectively emitting light to the first injection element 520.1 and / or the second injection element 520.2, it is possible to project the first pattern, the second pattern, either pattern or both patterns simultaneously, and by dynamically controlling in this way, it is possible to generate an animation from at least the first and second patterns.

[0152] In the example of FIG. 5, for illustrative purposes only, a light-emitting module 500 is shown that is composed of 12 flexible guide sheets, 12 injection elements, and 12 light sources arranged in a 3-row and 4-column matrix.

[0153] There is no limit to the number of flexible guide sheets in the third embodiment. Therefore, the third embodiment is applicable to N flexible guide sheets, N injection elements respectively associated therewith, and N light sources, or to a single light source connected to N injection elements by N optical fibers, where N is any integer greater than or equal to 2.

[0154] Also, there is no limit to the arrangement of the flexible guide sheets relative to each other. When arranging them in a matrix, there is no limit to the number of rows or columns.

[0155] The first and second patterns may have different shapes and may be the same as, for example, patterns 316.1 and 316.2 in FIG. 3. However, according to the definition of "pattern" given above, a pattern can be any intended or predefined spatial distribution of light emission intensity. Further, if the pattern is a shape or symbol, the first and second patterns may have the same symbol but different colors. Specifically, if sources 530.1 and 530.2 generate light of different colors, the colors projected onto each pattern may be different.

[0156] Further, as described above, a pattern may include portions of symbols that are complementary to each other so as to form one or more symbols across several flexible guide sheets of a matrix.

[0157] The flexible guide sheets may be connected to each other by supporting a matrix structure, and the matrix structure itself may be flexible. Alternatively, each flexible guide sheet may be connected to the surrounding flexible guide sheets by fixing means, such as adhesion, clamping, clipping, or any other method.

[0158] A series of light sources may be controlled by a control element 540 via a series of electric wires, and the control element 540 is connected to the light sources by each electric wire. The electric wires may be held in a structure 550 that can aggregate the electric wires and route them to the control element, thereby reducing the volume and enabling protection of the electric wires.

[0159] There is no limitation on the planar X-Y dimensions of the flexible guide sheets. For example, each flexible guide sheet may be rectangular or square in shape, and at least one dimension may be 2 to 10 cm. For example, the flexible guide sheet is square or rectangular, - one dimension is 2 cm to 10 cm, such as 2 cm to 5 cm, and for example equal to 5 cm; and - Another dimension is from 2 cm to 10 cm, for example from 2 cm to 5 cm and equal to 5 cm, for example.

[0160] For example, each flexible guide sheet is a 3 cm × 3 cm square.

[0161] The second, third, and fourth embodiments have been described mutually exclusively. However, it should be noted that these three embodiments may be combined with exactly the same light-emitting module, especially as follows: - The second and third embodiments may be combined: at least two flexible guide sheets overlap, and one of the two flexible guide sheets is associated with two light-emitting guides adapted to selectively emit light to two separate portions of the guide sheet, and two patterns are etched into the two portions respectively; - The second and fourth embodiments may be combined: at least two flexible guide sheets are arranged adjacent to each other, and one of the two flexible guide sheets is associated with two light-emitting guides adapted to selectively emit light to two separate portions of the guide sheet, and two patterns are etched into the two portions respectively; - The third and fourth embodiments may be combined: at least two flexible guide sheets are arranged adjacent to each other, and one of the two flexible guide sheets overlaps with the third flexible guide sheet of the light-emitting module; - The second, third, and fourth embodiments may be combined: at least two flexible guide sheets are arranged adjacent to each other, and one of the two flexible guide sheets overlaps with the third flexible guide sheet of the light-emitting module, and one of these three flexible guide sheets is associated with two light-emitting guides adapted to selectively emit light to two separate portions of the guide sheet, and two patterns are etched into the two portions respectively.

[0162] FIG. 6 shows an interior equipment 600 for a motor vehicle according to an embodiment of the present invention.

[0163] The interior equipment 600 according to the present invention includes a light-emitting module 100, 300, 400, 500 according to one of the above-described embodiments or a combination of some of the above-described embodiments, and an outer surface 620 to which the light-emitting modules 100, 300, 400, 500 are attached.

[0164] The outer surface means a surface accessible to the user when the interior equipment is mounted on the vehicle. Therefore, it is distinguished from the inner surface that is accessible only by removing the equipment or when the equipment is not mounted on the vehicle.

[0165] The "interior" equipment means any equipment including at least one outer surface intended to be accessible to a user inside a motor vehicle.

[0166] There is no limitation on the method of attaching the light-emitting modules 100, 300, 400, 500 to the outer surface 620.

[0167] The light-emitting modules 100, 300, 400, 500 may be inserted, for example, into a frame or a support of the equipment 600 provided for this purpose and having a shape complementary to the light-emitting module 600, and are held in place by adhesion, screwing, clip clamping, clamp clamping, or any other type of holding means or attachment means. Alternatively, the light-emitting modules 100, 300, 400, 500 are directly adhered to the outer surface 620 of the equipment 600.

[0168] The equipment 600 may also include a control element 640, which may be one of the control elements described above with reference to the four embodiments. Therefore, the control element 640 may be external to the light-emitting modules 100, 300, 400, 500. Alternatively, the control element 640 may be inside the light-emitting modules 100, 300, 400, 500 as described above.

[0169] The control element 640 may include a processor configured to communicate unidirectionally or bidirectionally with a memory such as a random access memory (RAM), a read-only memory (ROM), or any other type of memory (such as flash, EEPROM, etc.) via one or more buses or wired connections. Alternatively, the memory may include several memories of the types described above. Preferably, the memory is a non-volatile memory. The processor is adapted to execute instructions stored in the memory to execute one or more animations in response to receiving animation commands or to control the projection of patterns in response to touch input data from the touch-sensitive layer 610 described below. Alternatively, this processor may be replaced by a microcontroller designed and configured to execute one or more animations in response to receiving animation commands or to control the projection of patterns in response to touch input data from the touch-sensitive layer 610 described below.

[0170] Optionally, the internal equipment 600 may further include a touch-sensitive layer 610 adapted to receive touch input from the user. There is no restriction on this touch input, and it may be a tap, a tap and hold, a flick, a swipe, a two-finger tap, a pinch for zooming in or out, a double tap, or any other type of touch input.

[0171] Also, there is no limitation on the technology related to the touch-sensitive layer 610, and for example, it may be a capacitance type. Alternatively, the touch-sensitive layer 610 is a resistance type. Such technologies are well-known and will not be described in detail herein.

[0172] The light-emitting modules 100, 300, 400, 500 are adapted to form one or more patterns 630 including a first symbol 631 such as a + symbol and a second symbol 632 such as a - symbol. Examples of such patterns are shown for illustrative purposes only as described above.

[0173] Depending on the corresponding embodiment, the pattern 630 may be projected by one or more flexible guide sheets: - In the first embodiment, the pattern 630 is formed by a single flexible guide sheet of the light-emitting module 100; - In the second embodiment, the pattern 630 is formed by a single flexible guide sheet of the light-emitting module 300, but each symbol 631 and 632 may be projected by selectively injecting into two separate injection elements facing separate portions at the ends of the flexible guide sheet so as to project the symbols 631 and 632 into two separate regions. Therefore, the projected pattern may include one symbol, the other symbol, both symbols, or no symbol. More generally, it is possible to dynamically change the projected pattern 630 by selectively injecting into one, the other, or both injection elements; - In the third embodiment, the pattern 630 is formed by overlapping at least two flexible guide sheets of the light emitting module 400. According to the first example, each flexible guide sheet generates the same pattern 630 but with different colors, thereby enabling dynamic color change. According to the second example, the first flexible guide sheet is adapted to project a first symbol 631 according to a first color, and the second flexible guide sheet is adapted to project a second symbol 632 according to a second color that is the same as or different from the first color. The light emission is selectively controlled between the two flexible guide sheets so as to dynamically change the projected pattern 630, as in the second embodiment; - In the fourth embodiment, the pattern 630 is formed by a matrix of at least two flexible guide sheets adjacent to each other. Thus, according to the first example, the first flexible guide sheet projects a first symbol 631 and the second flexible guide sheet projects a second symbol 632. Alternatively, the light emitting module 500 includes three or more flexible guide sheets, and each flexible guide sheet is adapted to project a part of the symbols 631 and 632. For example, each symbol may be generated by four flexible guide sheets.

[0174] As in the case of FIG. 6, when several symbols are formed by the pattern 630, each symbol can be projected onto a given area of the light emitting modules 100, 300, 400, 500. The first symbol 631 can be projected onto a first given area of the light emitting module located on the right side, and the second symbol 632 can be projected onto a second given area of the light emitting module located on the left side.

[0175] According to one embodiment, the touch-sensitive layer 610 may include touch-sensitive regions corresponding to first and second given regions, respectively. Thus, the first touch-sensitive region may overlap with the first given region, and the second touch-sensitive region may overlap with the second given region. The touch-sensitive region of the light-emitting module and the given region may partially overlap only.

[0176] Therefore, when the user touches the first symbol 631, a first touch input can be received in the first touch-sensitive region, and when the user touches the second symbol 632, a second touch input can be received. When the first touch input is received, the first touch input data is transmitted to the control element 640, and when the second touch input is received, the second touch input data is transmitted to the control element 640.

[0177] The control element 640 is adapted to control the sources of the light-emitting modules 100, 300, 400, 500 according to the received touch input data. For example: - The control element 640 can change the emission intensity of the pattern according to the touch input data. For example, when the first touch input data is received, the control element increases the emission intensity of the projected pattern 630, and when the second touch input data is received, the control element decreases the emission intensity of the projected pattern 630; - The control element 640 can change the color of the pattern 630 according to the received touch input data; - The control element can activate or deactivate a specific light source according to the received touch input data.

[0178] Alternatively or in addition, the control element 640 may control another device of the vehicle not shown in FIG. 6 according to the touch input data. For example, the volume of the speaker may be increased or decreased according to the touch input data. Alternatively, the temperature of the vehicle's air conditioning / heating system may be controlled based on the received touch input data.

[0179] Three or more symbols may be provided in three or more given areas associated with three or more touch-sensitive areas, and the control element 640 is adapted to control the light-emitting modules 100, 300, 400, 500 or other devices according to three or more touch input data.

[0180] There is no limitation on the type of the applicable internal equipment 600.

[0181] The internal equipment 600 may be, for example, the dashboard of a motor vehicle. For example, it can be the dashboard on the passenger side of a motor vehicle. Accordingly, the internal equipment 600 can advantageously be used to control other devices in the vehicle, such as a heating / air conditioning system or a speaker. When the internal equipment is a dashboard, although not shown in FIG. 6, an inflatable safety device such as an airbag can be provided under the outer surface 620 of the equipment 600. In this case, since the light-emitting module is composed of one or more thin flexible guide sheets, when the vehicle is impacted, the inflatable safety device can tear the light-emitting modules 100, 300, 400, 500, so that the atmosphere or aesthetic light-emitting function can be executed or the vehicle devices can be controlled without impairing the driving safety function provided by the inflatable safety device.

[0182] Alternatively, the internal equipment 600 may be, for example, a seat of a motor vehicle, particularly the rear part of the seat, so as to project light towards the rear passengers of the vehicle. The light-emitting modules 100, 300, 400, 500 may be incorporated in the back of the headrest of the seat or the back of the seat body. Alternatively, the internal equipment 600 may be the roof of a motor vehicle or the rear shelf of a motor vehicle.

[0183] The present invention is not limited to the embodiments described above as examples, but is extended and applied to other modified forms.

Claims

1. An interior equipment (600) for a motor vehicle, said equipment comprising an outer surface (620) on which a light-emitting module (100, 300; 400; 500) is arranged, said light-emitting module being - An assembly of at least one flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2), each flexible guide sheet of said assembly receiving light through at least one end (114; 314) of said flexible guide sheet and being adapted to reflect said light in a direction substantially perpendicular to the surface of said flexible guide sheet according to at least one pattern (630) etched in said flexible guide sheet; - At least one light-emitting element (120; 320.1; 320.2; 420.1; 420.2; 520.1; 520.2) adapted to receive light and distribute said light in said assembly of at least one flexible guide sheet; - An interior equipment comprising at least one light source (130; 330.1; 330.2; 430.1; 430.2; 530; 530.2) adapted to emit light to said at least one light-emitting element.

2. Further comprising a touch-sensitive layer (610) adapted to receive touch input from a user, said touch-sensitive layer being arranged between said outer surface (620) of said equipment and said light-emitting module (100, 300; 400; 500) or under said outer surface of said equipment, the interior equipment according to claim 1.

3. The interior equipment according to claim 2, wherein said touch-sensitive layer (610) is a capacitance layer.

4. The interior equipment according to any one of claims 1 to 3, further comprising a control element (640) adapted to control said at least one light source (130; 330.1; 330.2; 430.1; 430.2; 530; 530.2).

5. The interior equipment according to claim 4 and according to any one of claims 2 or 3, wherein said control element (640) is adapted to receive touch input data from said touch-sensitive layer (610) and is configured to control said at least one light source (130; 330.1; 330.2; 430.1; 430.2; 530; 530.2) according to said touch input data.

6. The light emitting module (100; 300; 400; 500) is adapted to display at least one symbol (631; 632) in a given area of the light emitting module based on the pattern of each flexible guide sheet of the assembly, and a touch sensitive area of the touch sensitive layer (610) facing the given area of the light emitting module is adapted to receive a touch input and generate touch input data corresponding to the touch sensitive area. The interior equipment according to claim 5.

7. The light emitting module (100; 300; 400; 500) is adapted to display at least a first symbol (631) in a first given area of the light emitting module and at least a second symbol (632) in a second given area of the light emitting module based on the pattern (630) of each flexible guide sheet of the assembly. A first touch sensitive area of the touch sensitive layer (610) faces the first given area of the light emitting module, and a second touch sensitive area of the touch sensitive layer faces the second given area of the light emitting module. When a first touch input is received in the first touch sensitive area, first touch input data is generated by the touch sensitive layer, and when a second touch input is received in the second touch sensitive area, second touch input data is generated by the touch sensitive layer. The interior equipment according to claim 6.

8. The light emitting module (100; 300; 400; 500) includes a flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2), a light emitting element (120; 320.1; 320.2; 420.1; 420.2; 520.1; 520.2) and a light source (130; 330.1; 330.2; 430.1; 430.2; 530; 530.2). The light source is adapted to project light in a first wavelength range and a second wavelength range different from the first range, and the control element (640) is adapted to control the light source to project light in the first range or the second range. The interior equipment according to any one of claims 4 to 7.

9. The interior fitting according to claim 8, wherein the control element (640) controls the light source (130; 330.1; 330.2; 430.1; 430.2; 530; 530.2) and is adapted to project light in the first range or the second range in response to an animation command.

10. The interior fitting according to any one of claims 8 or 9 and according to any one of claims 5 to 7, wherein the control element (640) controls the light source (130; 330.1; 330.2; 430.1; 430.2; 530; 530.2) and is adapted to project light in the first range or the second range in response to the touch input data.

11. The interior fitting according to any one of claims 8 to 10, wherein the light emitting module (100; 300) includes a single flexible guide sheet (110; 310).

12. The light emitting module (300; 400; 500) includes a first injection element (320.1; 420.1; 520.1) and a second injection element (320.2; 420.2; 520.2), and the at least one light source (330.1; 330.2; 430.1; 430.2; 530; 530.2) is adapted to selectively emit light to the first injection element and the second injection element, and the assembly of the first light injection element and the at least one flexible guide sheet (310; 410.1; 410.2; 510.1; 510.2) is arranged to project light according to the first pattern, and the assembly of the second light injection element and the at least one flexible guide sheet is arranged to project light according to the second pattern. The interior fitting according to any one of claims 1 to 10.

13. The interior fitting according to claim 12, including a first light source (330.1; 430.1; 530.1) adapted to emit light to the first light injection element (320.1; 420.1; 520.1) and a second light source (330.2; 430.2; 530.2) adapted to emit light to the second light injection element (320.2; 420.2; 520.2).

14. The first light source (330.1; 430.1; 530.1) is adapted to generate light in a first wavelength range, and the second light source is adapted to generate light in a second wavelength range (330.2; 430.2; 530.2) different from the first range, the interior fitting according to claim 13.

15. The first injection element (320.1) is arranged to inject light into a first portion of the end (314) of the guide sheet (310) of the assembly, and the second injection element (320.2) is arranged to inject light into a second portion of the end of the flexible guide sheet, and a first portion (315.1) of the flexible guide sheet located opposite the first portion of the end is etched according to the first pattern (316.1), and a second portion (315.2) of the flexible guide sheet located opposite the second portion of the end is etched according to the second pattern (316.2), the interior fitting according to any one of claims 12 to 14.

16. The assembly includes at least first and second flexible guide sheets (410.1; 410.2; 510.1; 510.2), the first pattern (416.1) is etched on the first flexible guide sheet, the second pattern (416.2) is etched on the second flexible guide sheet, the first injection element (420.1; 520.1) is arranged to inject light into an end of the first flexible guide sheet, and the second injection element (420.2; 520.2) is arranged to inject light into an end of the second flexible guide sheet, the interior fitting according to any one of claims 12 to 14.

17. The first and second guide sheets (410.1; 410.2) overlap within the light emitting module in order to project the first and second patterns (416.1; 416.2) onto a common area of the light emitting module, the interior fitting according to claim 16.

18. The first and second flexible guide sheets (510.1; 510.2) are arranged adjacent to each other so as to project the first and second patterns to separate positions, the interior fitting according to claim 16.

19. The assembly includes three or more flexible guide sheets (510.1; 510.2) arranged adjacent to each other so as to form a matrix of flexible guide sheets, each flexible guide sheet being associated with a light emitting element (520.1; 520.2) adapted to emit light at an end of the flexible guide sheet, and each flexible guide sheet having at least one pattern etched in the sheet, the interior fitting according to claim 18.

20. The interior fitting according to any one of claims 18 or 19, wherein the flexible guide sheets (510.1; 510.2) of the assembly have the same square or rectangular shape.

21. The interior fitting according to claim 20, wherein the dimensions of the shape of the guide sheet (510.1; 510.2) are from 3 to 25 cm, in particular from 3 to 5 cm.

22. The interior fitting according to claim 4 and according to any one of claims 12 to 21, wherein the control element (640) is adapted to control the at least one source (330.1; 330.2; 430.1; 430.2; 530; 530.2) so as to selectively project light according to the first pattern (316.1; 416.1) and the second pattern (316.2; 416.2).

23. The interior fitting according to claim 22, wherein the control element (640) is adapted to dynamically control the at least one source so as to generate an animation of light composed of at least the first and second patterns (316.1; 416.1; 316.2; 416.2).

24. The interior fitting according to any one of claims 1 to 23, wherein the interior fitting (600) is a dashboard of a motor vehicle.

25. The interior fitting according to claim 24, wherein the dashboard is provided with an inflatable safety device under the outer surface of the dashboard.

26. The interior fitting according to any one of claims 1 to 23, wherein the interior fitting (600) is a seat of a motor vehicle, a roof of a motor vehicle or a rear shelf of a motor vehicle.

27. The interior fitting according to any one of claims 1 to 26, wherein each flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2) of the assembly has a thickness of 0.2 to 1 mm.

28. The internal fitting according to any one of claims 1 to 27, wherein at least one flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2) of the assembly is made of a transparent material.

29. The internal fitting according to claim 28, wherein each flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2) within the assembly is composed of a polycarbonate (PC), polymethyl methacrylate (PMMA), thermoplastic polyurethane (TUP), or polyethylene terephthalate (PET) film.

30. The internal fitting according to any one of claims 1 to 29, wherein each flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2) includes a film (111) composed of a microstructure (113), and each pattern (316.1; 416.1; 316.2; 416.2) of the first and second patterns is etched by ultraviolet printing of the microstructure of the film.

31. The internal fitting according to claim 30, wherein the surface density of the microstructure (113) decreases with the distance from the end of the guide sheet from which the light is emitted for each flexible guide sheet (110; 310; 410.1; 410.2; 510.1; 510.2).

32. The internal fitting according to any one of claims 1 to 31, wherein each injection element (120; 320.1; 320.2; 420.1; 420.2; 520.1; 520.2) includes a plurality of injection guides (123), each injection guide being adapted to receive light from one end of the guide and guide the light to a predetermined longitudinal position of the injection element, and all of the longitudinal positions of the injection guides being different so as to distribute the light longitudinally within the injection element.

Images