• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a signaling device for a motor vehicle comprising an opaque screen allowing the passage of a greater amount of light emitted by a source hidden behind said screen. The signaling device (2A, 2B, 2C, 2D, 2E) comprises an opaque screen (4) having passages (14) connecting a front face (6) to a rear face (8) of said screen, and a first source of light (10) adapted to emit a first light beam (12A) illuminating several passages (14) at the rear face (8) of the opaque screen (4). According to the invention, the signaling device (2A, 2B, 2C, 2D) comprises a focusing means (26) of the first light beam (12A) interposed between the first light source (10) and the opaque screen ( 4), to allow transmission between 80% and 95% of the light intensity of the first light beam (12A) through the passages (14).
    公开号:FR3078139A1
    申请号:FR1851979
    申请日:2018-03-07
    公开日:2019-08-23
    发明作者:Alain Buisson；Sean Patterson
    申请人:Automotive Lighting Rear Lamps France SAS；
    IPC主号:
    专利说明:

    Technical field to which the invention relates [01] The present invention relates to a signaling device for a motor vehicle, comprising an opaque screen allowing the passage of a greater quantity of light, emitted by a light source concealed behind the opaque screen.
    TECHNOLOGICAL BACKGROUND [02] It is known from the state of the art to conceal a light source behind an opaque screen, having passages so as to allow only part of the light emitted by said source to pass. This type of device makes it possible to obtain substantially homogeneous surfaces, comprising several light points illuminating the front of a signaling device. This arrangement is particularly popular with designers of signaling devices for motor vehicles, in order to give a specific style to a lighting device. For example, the passages can be arranged through the opaque screen so as to form a luminous pattern representing a distinctive sign of an automobile brand.
    [03] However, this type of arrangement has the drawback of losing a large amount of the light intensity emitted by the light source at the opaque screen. In fact, only a small part of the light intensity passes through the opaque screen through the passages. Therefore, to compensate for this loss of intensity, it is necessary to increase the initial power of the light source, or else to provide additional light sources so that the signaling device can meet the standards in force concerning lighting.
    [04] The present invention aims to solve this problem, by providing a light device for a motor vehicle, comprising an opaque screen concealing a light source from an observer, while allowing a greater amount of light emitted by said source to pass through the opaque screen.
    OBJECT OF THE INVENTION [05] The invention relates to a signaling device for a motor vehicle, comprising an opaque screen comprising passages connecting a front face to a rear face of said screen. Preferably, the front and rear faces are parallel or substantially parallel to one another. The signaling device also includes a first light source capable of emitting a first light beam illuminating several passages at the rear face of the opaque screen.
    [06] The invention is characterized in that the signaling device comprises a means for focusing the first light beam, interposed between the first light source and the opaque screen, to allow transmission between 80% and 95% of the light intensity of the first light beam through the passages.
    [07] In other words, the focusing means is configured to modify the shape of the first light beam, upstream of the opaque screen, so that between 80% and 95% of its light intensity passes through the opaque screen , propagating in the passages connecting the front face to the rear face of said screen. Thus, advantageously, the opaque screen makes it possible to conceal the first light source from an observer of the signaling device, by very slightly attenuating the light intensity of said light source.
    [08] According to an alternative embodiment, the focusing means is configured to split the first light beam into several distinct light sub-beams, and each light sub-beam converges in a passage. The focusing means separates the first light beam into a sufficient number of light sub-beams so that each light sub-beam can propagate through a passage, retaining substantially the same light intensity.
    [09] According to an alternative embodiment, each light sub-beam converges at the entrance to a passage, at an angle of convergence between
    3 ° and 45 °, preferably between 5 ° and 25 °.
    [10] According to an alternative embodiment, each passage leads to the front face of the opaque screen, at an exit, and the total surface of the exits is less than 55% of the total surface of the front face, preferably between 20% and 5% of said surface.
    [11] According to an alternative embodiment, the largest dimension of each outlet is between 0.05 mm and 2 mm, preferably between 0.1 mm and 0.3 mm.
    [12] According to an alternative embodiment, the distance between the center of two adjacent outlets is between 0.1 mm and 6 mm, preferably between 0.3 mm and 0.9 mm. According to another embodiment, an outlet is surrounded by several adjacent outlets, located at the same distance from said outlet. An outlet can thus be surrounded by a number of outlets of between three and eight adjacent outlets, preferably by six other adjacent outlets.
    [13] According to an alternative embodiment, each light sub-beam is inscribed in a passage. This limits the phenomena of loss of light intensity of each light sub-beam, due in particular to reflection phenomena on the internal walls of the passages.
    [14] According to an alternative embodiment, at the rear face of the opaque screen, each passage forms an oval entry, preferably circular. The smallest dimension of an entrance is preferably greater than the smallest dimension of the exit of the same passage. Preferably, the dimensions of each passage are reduced between its entry and its exit.
    [15] According to an alternative embodiment, the focusing means comprises:
    - A first optical diopter, arranged opposite the first light source, so that the light rays composing the first light beam propagate parallel or substantially parallel to each other, downstream of the first optical diopter; and
    - a second optical diopter, arranged between the first optical diopter and the opaque screen, so as to split the first light beam into several light sub-beams.
    [16] According to an alternative embodiment, the first optical diopter comprises a rear face, lit by the first light source, comprising at least one Fresnel lens centered on a light device composing the first light source.
    [17] According to an alternative embodiment, a front face of the second optical diopter is located opposite, and at a distance from the rear face of the opaque screen of between 0 and 0.05 mm.
    [18] According to an alternative embodiment, the second optical diopter comprises several protrusions, at its front face, each protuberance occupying a passage of the opaque screen, preferably each protuberance fills a passage of the opaque screen. According to a preferred embodiment, at least one protrusion emerges from the front face of the opaque screen.
    [19] According to an alternative embodiment, the first optical diopter and the second optical diopter form a single piece. Preferably, the first diopter and the second optical diopter are obtained by a molding process. For example, the first diopter and the second optical diopter can be molded separately before being assembled together by known means.
    [20] According to an alternative embodiment, the opaque screen is composed of several sub-screens, preferably offset between them so that the front face of the opaque screen is in relief or in three dimensions. According to a preferred embodiment, the outline of each opaque subscreen defines a hexagonal, square or triangular shape.
    [21] According to an alternative embodiment, the first light source comprises several distinct light devices. Preferably, the first light source comprises several light-emitting diodes aligned on the same plane. The light-emitting diodes can form an identical or substantially identical pattern, to the pattern formed by the inputs at the rear face of the opaque screen. The number of inputs is greater than the number of light emitting diodes. The difference between two adjacent diodes can be between 4 mm and 100 mm, preferably of the order of 10 mm.
    [22] According to an alternative embodiment, a signaling device according to the invention comprises a light guide, arranged opposite the front face of the opaque screen, so that the first light source can illuminate said light guide, and in that the light guide is translucent. According to an alternative embodiment, the signaling device comprises a second light source, arranged facing a lateral face of the light guide, to allow the propagation of a second light beam emitted by the second light source. light between a front face and a rear face of the light guide. The rear face of the light guide can be illuminated by the first light source.
    [23] According to a preferred embodiment, the front face of the opaque screen is light in color and promotes diffuse reflection of the light coming from the light guide, preferably the front face of the reflection screen is colored white and mat.
    [24] Of course, the different characteristics, variants and embodiments mentioned above can be combined with one another in various combinations, insofar as they are not incompatible or mutually exclusive of each other.
    [25] The invention also relates to a motor vehicle comprising one of the signaling devices described above.
    Description of the figures [26] The description which follows with reference to the following appended drawings, given by way of nonlimiting examples, will allow a better understanding of what the invention consists of and how it can be carried out:
    - Figure 1 illustrates a cross section of a first embodiment of an extinguished signaling device according to the invention;
    - Figure 2 illustrates a view of the rear face of an opaque screen of the signaling device shown in Figure 1;
    - Figure 3 illustrates a longitudinal section of an opaque screen shown in Figure 2;
    - Figure 4 illustrates a cross section of the signaling device shown in Figure 1, when the light source is on;
    - Figures 5 and 6 illustrate a cross section of a second embodiment of a signaling device according to the invention, respectively off and on;
    - Figures 7 and 8 illustrate a cross section of a third embodiment of a signaling device according to the invention, respectively off and on;
    - Figure 9 illustrates a cross section of a fourth embodiment of a signaling device turned on according to the invention;
    - Figure 10 illustrates a cross section of a fifth embodiment of a signaling device turned on according to the invention, combining the features of the second and fourth embodiment;
    - Figure 11 illustrates a view of a rear face of an opaque screen of a signaling device shown in Figure 1, according to a sixth alternative embodiment;
    - Figure 12 illustrates a side section of an opaque screen shown in Figure 11.
    Detailed description of an exemplary embodiment [27] As a reminder, the invention provides a signaling device for a motor vehicle, comprising an opaque screen hiding a light source from an observer, while allowing a greater amount of light emitted by said source to pass through the opaque screen.
    [28] Figures 1 to 4 illustrate a first embodiment of a signaling device 2A according to the invention. This signaling device comprises an opaque screen 4 delimited by a front face 6, parallel or substantially parallel to a rear face 8. The opaque screen is of planar shape. However, this exemplary embodiment is not limiting in the sense that the opaque screen 4 could comprise parts of concave and / or convex shape, or else sub-parts offset with respect to each other as illustrated in the figure. 12. The opaque screen has a thickness of between 0.5 mm and 2 mm, preferably of the order of 0.8 mm to 1 mm. By the term "thickness" is meant the smallest distance between the front face 6 and the rear face 8 of the opaque screen. According to the present example, the opaque screen 4 is molded from poly (methyl methacrylate) (PMMA) or from polycarbonate (PC).
    [29] The opaque screen is configured or treated so as to be opaque to the light beams emitted by a first light source 10. The opaque screen is positioned in front of the first light source, so as to conceal said source from an observer looking at the front face 6 of the opaque screen. As illustrated in FIG. 4, in order to allow the passage of a first light beam 12, emitted by the first light source, the opaque screen has passages 14 connecting its front face 6 to its rear face 8. Each passage 14 crosses the opaque screen in a direction perpendicular or substantially perpendicular to its rear face 8. The dimensions of the passages are chosen so that an observer cannot perceive the entirety of the first light source, through one or more passages
    14.
    [30] As illustrated in FIG. 2, the rear face 8 of the opaque screen defines, for each passage 14, the contours of an entry 16 opening onto said face. The inputs 16 are elliptical in shape, their smallest dimension is between 0.15 mm and 0.25 mm. According to the present example, the inlets 16 are circular in shape and their diameter is of the order of 0.2 mm. The inlets 16 are preferably of identical shape and dimensions, distributed uniformly on the rear face 8. The distance between the centers of two adjacent inlets is between 0.35 mm and 0.45 mm, preferably l '' order of 0.4 mm. According to the present example, each entry is surrounded by six other entries, distant by the same distance from the center of said entry.
    [31] Each passage 14 leads to the front face 6 of the opaque screen, at an outlet 17. The outlets 17 are elliptical in shape, their smallest dimension is between 0.1 mm and 0.3 mm . Preferably, the dimensions of the outlets 17 are smaller than the dimensions of the inlets 16. According to the present example illustrated in FIG. 3, the outlets 17 are of identical shape to the inlets
    16. The diameter of the outlets 17 is of the order of 0.2 mm. In other words, the total surface of the outlets 17 represents between 1% and 20% of the total surface of the front face 6 of the opaque screen, preferably of the order of 10%. Advantageously, the dimensions of the outputs 17 are chosen to be little or not visible to an observer located at a distance of the order of one meter from the opaque screen. As a result, the front face 6 of the opaque screen appears to be homogeneous in daylight, when the first light source 10 is switched off.
    [32] As illustrated in FIG. 4, the first light source 10 comprises a set of light-emitting diodes 18 to illuminate the opaque screen 4. The light-emitting diodes are arranged on the same support 20 positioned opposite the rear face 8 of the opaque screen 4. The emission surface 22 of each light-emitting diode is distant from the rear face 8, by a distance of between 12 mm and 50 mm, preferably between 22 mm and 30 mm. The light-emitting diodes are distributed over the support 20 so as to form a pattern similar or substantially similar to that formed by the inputs 16 on the rear face 8 of the opaque screen 4. The distance between the centers of two adjacent light-emitting diodes is included 4 mm and 100 mm, preferably of the order of 10.6 mm. According to the present example, each light-emitting diode 18A emits independently of the other light-emitting diodes, a first light beam 12A in the form of an emission cone 24. The emission cone is characterized by an angle at its apex which is between 30 ° and 60 °, preferably between 30 ° and 40 °. In order to allow the reader to understand the invention better, the operation of a single light-emitting diode 18A is illustrated in the appended figures.
    [33] According to the invention, a focusing means 26 is interposed between the light-emitting diodes 18 and the rear face 8 of the opaque screen. The focusing means 26 comprises a first optical diopter 28, comprising a rear face 30 facing the light-emitting diodes and a front face 32 facing the opaque screen 4. The rear face 30 and the front face 32 are parallel or substantially parallel to each other. The first optical diopter 28 comprises at its rear face 30 Fresnel lenses 34. The emission surface 22 of each light-emitting diode is distant from the rear face 30 of the first optical diopter 28, by a distance of between 5 mm and 22 mm, preferably between 18 mm and 22 mm. Each Fresnel lens 34 is aligned with a light-emitting diode 18A, so that the first light beams 12A emitted by said diode propagate parallel or substantially parallel to each other, downstream of the first optical diopter 28.
    [34] A second optical diopter 36 is interposed between the first optical diopter 28 and the rear face 8 of the opaque screen 4. This second optical diopter 36 has a rear face 38 facing the first optical diopter 28, and a front face 40 facing the opaque screen 4. The rear and front faces of the second optical diopter 36 are parallel or substantially parallel to one another. The greatest distance between said faces is between 1.5 mm and 2 mm. The smallest distance between the front face 32 of the first optical diopter 28 and the rear face 38 of the second optical diopter 36 is between 0.5 mm and 40 mm, preferably between 0.5 mm and 1 mm. The rear face 38 of the second optical diopter has converging lenses 42 on its surface. According to the present example, each convergent lens 42 is arranged so as to converge light rays coming from the first optical diopter 28, into several distinct light sub-beams 44 which converge at a convergence angle between 3 ° and 45 °, preferably between 5 ° and 25 °. Each light sub-beam 44 is thus focused at the level of an entry 16 of a passage of the opaque screen, so as to be registered in said entry, preferably also to be registered in all the length of the passage 14 .
    [35] According to the present example, the first optical diopter 28 and the second optical diopter 36 are both produced by a molding technique, from a material of the poly (methyl methacrylate) (PMMA) or polycarbonate (PC) type. ). The optical indices of the first and second optical dioptres are similar and of the order of 1.70.
    [36] Thanks to the invention, the focusing means 26 composed of the first optical diopter 28 and the second optical diopter 36, makes it possible to split a first light beam 12A emitted by each light-emitting diode 18A, into several suitable light sub-beams 44 to pass through the passages 14 of the opaque screen. Thus, between 80% and 95% of the light intensity of each first light beam 12A, passes through the opaque screen via several passages 14, the dimensions of which do not allow an observer to distinguish the globality of the first light source 10.
    [37] Figures 5 and 6 now illustrate a second embodiment of a signaling device 2B according to the invention. This signaling device 2B differs from the signaling device 2A in that the front face 40 of the second optical diopter 36 is in contact with the rear face 8 of the opaque screen 4. The identical elements between the different embodiments and variants of the invention are identified below by the same references. The greater distance between the front face 40 and the rear face 38 of the second optical diopter 36 is greater compared to the previous embodiment, so that the converging lenses 42 are substantially the same distance from the rear face 8 of the opaque screen in these two embodiments. According to the present example, the greatest distance between the front and rear faces of the second optical diopter 36 varies between 2 mm and 4 mm, preferably between 2.3mm and 2.7 mm.
    [38] According to another feature of this second embodiment, the front face 6 of the second optical diopter 36 has protrusions 46 fitting or filling in each passage 14 of the opaque screen 4. The external shape of the protrusions 46 is complementary to the internal shape of the passages 14, in order to promote better mechanical retention between these elements. According to another advantage, the protuberances allow a simple and precise alignment, between each converging lens 42 and each passage 14, in order to ensure that the light sub-beams 44 fit well in each passage.
    [39] Figures 7 and 8 illustrate a third embodiment of a 2C signaling device according to the invention. This signaling device 2C differs from the signaling device 2A in that the first optical diopter 28 and the second optical diopter 36 now form a single focusing part 26A, preferably molded. The focusing means 26A has a rear face 48 facing the light-emitting diodes 18, comprising several Fresnel lenses 34 as described above. The emitting surface 22 of each light-emitting diode is distant from the rear face 48 of the optical diopter 26A, by a distance of between 5 mm and 22 mm, preferably between 18 mm and 22 mm. The focusing means 26A also comprises a front face 50, facing the rear face 8 of the opaque screen 4, comprising converging lenses 42. A converging lens 42 is aligned with a Fresnel lens 34, so that the light sub-beams 44 emerging from the focusing means 26A, focus at an entry 16 of a passage 14 of the opaque screen. Each light sub-beam 44 thus converges at the entrance to a passage, so as to register at its entrance 16, preferably also to register throughout the length of the passage. According to the present example, each light sub-beam 44 converges at the entrance to a passage, at a convergence angle of between 3 ° and 45 °, preferably between 5 ° and 25 °.
    [40] According to an alternative embodiment of the signaling device 2A described above, a 2D signaling device illustrated in FIG. 9 comprises a light guide 50 arranged opposite the front face 6 of the screen opaque. This light guide 50 is delimited by a front face 54, parallel or substantially parallel to a rear face 56. The front and rear faces are connected together by lateral faces which delimit the outline of the light guide 50. The light guide is planar in shape. However, this exemplary embodiment is not limiting of the invention, in the sense that the light guide 50 could comprise parts of concave and / or convex shape. The light guide 50 is formed from a transparent material, allowing daylight to pass through, making it possible to clearly distinguish the contours and the color of the opaque screen 4. For example, the light guide 50 can be formed from poly (methyl methacrylate) (PMMA) and have a thickness between 1 mm and 5 mm, preferably of the order of 3 mm. By the term "thickness" is meant the smallest distance between the front face 6 and the rear face 8 of the light guide.
    [41] The 2D signaling device comprises a second light source 58, arranged opposite a side face of the light guide 4 hereinafter referred to as the input side face 60. As illustrated in FIG. 9 , the second light source 58 is oriented to allow the propagation of a second light beam 62 emitted by said light source, between the front face 54 and the rear face 56 of the light guide. The second light source 58 may comprise one or more light-emitting diodes, each diode illuminating part of the input side face 60. Preferably, the light-emitting diodes are spaced apart in order to uniformly light the input side face 60 The color and the light intensity of each light-emitting diode can be modified over time in order to create light animations in the light guide 50.
    [42] In order to promote greater diffusion of the second light beam 62, through the front face 54 and the rear face 56 of the light guide 50, light scattering elements are present in the light guide 50. These diffusion elements include cavities 64 open on the rear face 56 of the light guide. The cavities 64 are positioned in the light guide 50 in order, on the one hand, to make the light guide translucent, and on the other hand, to promote a substantially homogeneous diffusion of a light beam through the front face 6. By the term "translucent" means the property for the light guide 50 to let the light beams of daylight through, without it being possible to clearly distinguish through its front face 54, the contours or the color of the opaque screen 4.
    [43] Each cavity 64 delimits an internal volume which is between 48,000 pm 3 and 536,000 pm 3 , preferably between 95,000 pm 3 and 268,000 pm 3 . According to the present example, each cavity has a volume of the order of 218,000 pm 3 . The cavities are arranged so as to be spaced at the rear face 56 of the light guide 50, by a distance of between 0.12 mm and 0.7 mm, preferably between 0.13 mm and 0.5 mm . According to the present example, the cavities 64 are of conical shape, their base being delimited by the rear face 56 of the light guide, their apex forming an angle of the order of 60 °, their height being of the order of 0, 05 mm and the diameter of their base on the order of 0.1 mm.
    [44] In order to increase the intensity of the second light beam 60 diffused through the front face 6 of the light guide 50, the opaque screen 4 is placed opposite and at a distance from its rear face 56. The distance between the opaque screen 4 and the light guide 50 is between 0.05 mm and 0.15 mm, preferably of the order of 0.1 mm. The front face 6 of the opaque screen 4 is parallel or substantially parallel to the rear face 56 of the light guide 50. Advantageously, the front face 6 of the opaque screen is white in color and has a mat appearance. The surface of the front face 6 of the opaque screen 4 is configured to promote a diffuse reflection of the light coming from the rear face of the light guide 50. By diffuse reflection is meant the fact that the light is reflected in all the directions with, optionally, a greater light intensity in the direction of the light guide 50. According to the present example, the front face 6 of the opaque screen is rough so as to scatter the light in a Lambertian manner.
    [45] This embodiment advantageously makes it possible to obtain a signaling device whose thickness, measured between the support 20 and the front face 54 of the light guide, is less than 30 mm, preferably less than 25 mm. It is thus possible to obtain a very compact signaling device which can easily be integrated into optical boxes of smaller dimensions.
    [46] According to another embodiment 2E of a signaling device according to the invention, the characteristics of the second and fourth embodiment can be combined together, in order to produce a fifth embodiment illustrated in FIG. 10.
    [47] According to a sixth alternative embodiment of the signaling device 2A described above, the opaque screen 4 can comprise several opaque sub-screens 4A, 4B, 4C and 4D, assembled according to FIGS. 11 and 12. The outline of each opaque subscreen is configured to allow its juxtaposition with other opaque subscreens. According to the present example, the outline of each sub-screen is hexagonal in shape. Of course, the present exemplary embodiment is not limited to this single embodiment, so that the outline of each opaque subscreen could be of triangular, square or other shape. However, the hexagonal shape offers the advantage of allowing self-alignment of the passages 14 between the opaque subscreens, during their assembly, so that the pattern formed by the outlets 17 is identical over the entire front face of the opaque screen. 4. This embodiment also makes it possible to offset the front faces 6, with respect to one another, so that the opaque screen has reliefs. According to the present example illustrated by FIG. 11,1a front face 6 of the sub-screen 4A is set back relative to the front face of the sub-screen 4D.
    [48] Of course, the various embodiments described below can be combined to form new embodiments which are not explicitly described.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    1. Signaling device (2A, 2B, 2C, 2D, 2E) for a motor vehicle, comprising an opaque screen (4) comprising passages (14) connecting a front face (6) to a rear face (8) of said screen, a first light source (10) capable of emitting a first light beam (12A) illuminating several passages (14) at the rear face (8) of the opaque screen (4), characterized in that the signaling device (2A, 2B, 2C, 2D) comprises a means of focusing (26) of the first light beam (12A), interposed between the first light source (10) and the opaque screen (4), to allow transmission between 80 % and 95% of the light intensity of the first light beam (12A) through the passages (14).
    [2" id="c-fr-0002]
    2. Signaling device (2A, 2B, 2C, 2D, 2E) according to the preceding claim, characterized in that the focusing means (26) is configured to split the first light beam (12A) into several light beams (44) separate, and each light sub-beam converges in a passage (14).
    [3" id="c-fr-0003]
    3. Signaling device (2A, 2B, 2C, 2D, 2E) according to the preceding claim, characterized in that each light beam (44) converges at an inlet (16) of a passage (14), at an angle of convergence between 3 ° and 45 °, preferably between 5 ° and 25 °.
    [4" id="c-fr-0004]
    4. Signaling device (2A, 2B, 2C, 2D, 2E) according to one of the preceding claims, characterized in that each passage (14) opens onto the front face (6) of the opaque screen (4), at an outlet (17), and the total area of the outlets (17) is less than 55% of the total area of the front face (6), preferably between 20% and 5% of said area.
    [5" id="c-fr-0005]
    5. Signaling device (2A, 2B, 2C, 2D, 2E) according to claim 4, characterized in that the largest dimension of each outlet (17) is between 0.05 mm and 2 mm, preferably between 0 , 1 mm and 0.3 mm.
    [6" id="c-fr-0006]
    6. Signaling device (2A, 2B, 2C, 2D, 2E) according to one of the preceding claims, characterized in that the distance between the center of two adjacent outlets (17) is between 0.1 mm and 6 mm, preferably between 0.3 mm and 0.9 mm.
    [7" id="c-fr-0007]
    7. Signaling device (2A, 2B, 2C, 2D, 2E) according to one of the preceding claim, characterized in that each light beam (44) is inscribed in a passage (14).
    [8" id="c-fr-0008]
    8. Signaling device (2A, 2B, 2D, 2E) according to one of the preceding claims, characterized in that the focusing means (26) comprises:
    - a first optical diopter (28), arranged opposite the first light source (10), so that the light rays composing the first light beam (12A) propagate parallel or substantially parallel to each other , downstream of the first optical diopter (28); and
    - a second optical diopter (36), arranged between the first optical diopter (28) and the opaque screen (4), so as to split the first light beam (12A) into several light sub-beams (44).
    [9" id="c-fr-0009]
    9. Signaling device (2A, 2B, 2D, 2E) according to claim 8, characterized in that the first optical diopter (28) has a rear face (8), lit by the first light source (10), comprising at least one centered Fresnel lens (16) on a light device composing the first light source (10).
    [10" id="c-fr-0010]
    10. Signaling device (2B, 2E) according to claim 8, characterized in that the second optical diopter (36) has several protrusions (46), at its front face (6), each protuberance occupying a passage (14 ) of the opaque screen (4), preferably each protuberance fills a passage (14) of the opaque screen (4).
    [11" id="c-fr-0011]
    11. Signaling device (2C) according to the preceding claim, characterized in that the first optical diopter (28) and the second optical diopter (36) form a single piece (26A).
    [12" id="c-fr-0012]
    12. Signaling device (2A, 2B, 2C, 2D, 2E) according to one of the preceding claims, characterized in that the opaque screen (4) is composed of several sub-screens (4A, 4B, 4C, 4D ), preferably offset between them so that the front face (6) of the opaque screen is in relief.
    [13" id="c-fr-0013]
    13. Signaling device (2D, 2E) according to one of the preceding claims, 5 comprising a light guide (50), arranged opposite the front face (6) of the opaque screen (4) , so that the first light source (10) can illuminate said light guide, and in that the light guide (50) is translucent.
    [14" id="c-fr-0014]
    14. Signaling device (2D, 2E) according to the preceding claim, characterized in that the front face (6) of the opaque screen (4) is light in color and promotes diffuse reflection of the light coming from the guide. light (50), preferably the front face (6) of the reflection screen is white in color and matt in appearance.
    [15" id="c-fr-0015]
    15. Motor vehicle comprising a signaling device (2A, 2B, 2C, 2D,
    15 2E) according to one of the preceding claims.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3755943A1|2020-12-30|Signaling device for a motor vehicle, comprising an opaque screen that can be penetrated by a greater amount of light emitted by a light source concealed behind said screen
    EP1547865B1|2007-01-24|Signalling or lighting device, in particular for motor vehicle
    EP2476947B1|2014-10-29|Lighting or signalling device with an optical guide for an automobile vehicle
    EP1288562B1|2009-09-02|Lighting or signalling device for motor vehicle
    FR2934353A1|2010-01-29|Optical system for producing light beams in e.g. signaling or lighting device of motor vehicle, has reflector elements arranged at central zone's portion of diffusion module, and deviating light rays towards front of system
    EP1610158B1|2017-02-22|Light guide signaling device
    FR2846400A1|2004-04-30|Signaling light for vehicle, comprises light source which illuminates light motor made from material with refractive index higher than air situated at center of coaxial annular reflector
    FR2928110A1|2009-09-04|OPTICAL SYSTEM WITH MAIN FUNCTION FOR MOTOR VEHICLE
    FR2872256A1|2005-12-30|Lighting and/or signaling device e.g. taillight, for motor vehicle, has optical waveguide diffracting light beam by lateral reflection of light beam and comprising groove and non traversing orifices
    FR2886237A1|2006-12-01|IMPROVED APPEARANCE LIGHTING OR SIGNALING DEVICE FOR MOTOR VEHICLE
    FR2815425A1|2002-04-19|Transparent vehicle headlamp lens includes block of material with micro-deterioration points causing diffraction in chosen pattern
    EP2999919B1|2018-05-09|Optical waveguide with a reflective pattern for propagating a light beam
    WO2019158890A1|2019-08-22|Signaling device for a motor vehicle, comprising an opaque screen that can be penetrated by a greater amount of light emitted by a light source concealed behind said screen
    FR2968745A1|2012-06-15|LIGHT
    FR3065785A1|2018-11-02|PROJECTION LENS FOR MOTOR VEHICLE PROJECTOR
    EP2926049A1|2015-10-07|Vehicle signalling device with three-dimensional effect
    EP2703220B1|2016-12-21|Lighting and/or signalling device for an automobile
    EP3315851A1|2018-05-02|Optical module for projecting a cutting light beam having horizontal focusing means
    FR3074259A1|2019-05-31|INVISIBLE PHOTON SOURCE | GUIDED LIGHT | LIGHTING DEVICE | FOR A VEHICLE
    FR2994247A1|2014-02-07|LIGHTING DEVICE WITH REAR-SIDE GUIDED LIGHT GUIDE | WITH DEFINED DIFFUSION ELEMENTS ON A HOME LINE
    FR3054045B1|2019-06-28|OPTICAL GUIDE WITH LIGHT CONTINUOUS CONES
    FR3087015A1|2020-04-10|BODY PIECE COMPRISING A LENTICULAR WALL TO FORM A HOLOGRAPHIC IMAGE
    FR3101695A1|2021-04-09|Optical system, and optical element for shaping an optical beam and corresponding lighting, signaling and / or cosmetic device
    FR2994248A1|2014-02-07|Optical element for optical module of lighting and/or signaling device of car, has optical reflective and/or refracting surfaces comprising set of patterns, where each pattern comprises first measured dimension parallel to optical surface
    WO2022003283A1|2022-01-06|Optical assembly for a projector and projector comprising such an optical assembly
    同族专利:
    公开号 | 公开日
    EP3755943A1|2020-12-30|
    US20210062993A1|2021-03-04|
    FR3078140A1|2019-08-23|
    KR20210047269A|2021-04-29|
    JP2021514532A|2021-06-10|
    FR3078139B1|2021-11-12|
    FR3078140B1|2020-09-11|
    EP3755942A1|2020-12-30|
    WO2019158889A1|2019-08-22|
    CN112005047A|2020-11-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3402473A1|1983-01-27|1984-08-02|Toyota Jidosha K.K., Toyota, Aichi|LAMP UNIT|
    EP0180145A1|1984-10-26|1986-05-07|Neiman|Lighting and signalling device, especially for motor vehicles|
    DE19753762A1|1997-12-04|1999-06-10|Itt Mfg Enterprises Inc|Combination rear signal lamp for automobile|
    US20040130904A1|2002-10-24|2004-07-08|Koito Manufacturing Co., Ltd.|Vehicular marker lamp|
    EP1541920A1|2003-12-10|2005-06-15|Sagem SA|Light for signalling comprising electroluminescent diodes|
    DE102013021086A1|2013-12-18|2015-06-18|Audi Ag|Lighting device for a motor vehicle exterior lighting|
    FR2891891B1|2005-10-11|2013-08-30|Valeo Vision|OPTICALLY GUIDED LIGHTING OR SIGNALING DEVICE FOR MOTOR VEHICLE|
    DE102008057538A1|2008-11-08|2009-07-09|Daimler Ag|Vehicle light e.g. head light, has light source with inferior priority producing light that is injected into chamber and is superimposed on light produced by another light source having superior priority|
    FR2957652B1|2010-03-19|2013-05-31|Automotive Lighting Rear Lamps France|DEVICE FOR OBTAINING AN INFINITE EFFECT OF A MOTOR VEHICLE SIGNALING FIRE|
    EP2384934A1|2010-05-07|2011-11-09|odelo GmbH|Motor vehicle light with multiple light functions|
    FR2974616B1|2011-04-29|2015-12-25|Valeo Illuminacion|SIGNALING DEVICE WITH "STOP" AND "POSITION" FUNCTIONS USING A LIGHT GUIDE AND GENERATING A 3D EFFECT|
    FR2986604B1|2012-02-03|2015-07-31|Automotive Lighting Rear Lamps France|LED LIGHT MODULE FOR REAR LIGHTS OF MOTOR VEHICLE|
    JP2015153577A|2014-02-13|2015-08-24|スタンレー電気株式会社|vehicle lamp|
    DE102014110225A1|2014-07-21|2016-01-21|Osram Opto Semiconductors Gmbh|vehicle light|
    FR3031794A1|2015-01-15|2016-07-22|Valeo Iluminacion Sa|LIGHT GUIDE COMPRISING SECONDARY LIGHT GUIDING PART INTENDED TO FIX THIS GUIDE|
    US9822944B2|2015-05-22|2017-11-21|Magna International Inc.|Vehicle light assembly having a colored appearance in an unlit state|
    JP6696793B2|2016-02-24|2020-05-20|スタンレー電気株式会社|Vehicle lighting|
    CZ2016333A3|2016-06-03|2017-12-13|Varroc Lighting Systems, s.r.o.|A lighting device for motor vehicles|FR3099227A1|2019-07-26|2021-01-29|Psa Automobiles Sa|A light device for a motor vehicle capable of simultaneously emitting a signaling light beam and an illumination light beam.|
    FR3110215A1|2020-05-15|2021-11-19|Marelli Automotive Lighting France|Light module for lighting and / or signaling a motor vehicle including a twisted light guide|
    FR3110214A1|2020-05-15|2021-11-19|Marelli Automotive Lighting France|Light module for lighting and / or signaling a motor vehicle comprising a twisted light guide capable of displaying a light pattern|
    法律状态:
    2019-03-29| PLFP| Fee payment|Year of fee payment: 2 |
    2019-08-23| PLSC| Publication of the preliminary search report|Effective date: 20190823 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 3 |
    2020-11-06| CD| Change of name or company name|Owner name: MARELLI AUTOMOTIVE LIGHTING FRANCE, FR Effective date: 20200925 |
    2021-03-30| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1851412|2018-02-19|
    FR1851412A|FR3078140B1|2018-02-19|2018-02-19|ATTRACTIVE SAFETY SIGNALING DEVICE FOR A MOTOR VEHICLE|EP19711968.8A| EP3755943A1|2018-02-19|2019-02-19|Signaling device for a motor vehicle, comprising an opaque screen that can be penetrated by a greater amount of light emitted by a light source concealed behind said screen|
    PCT/FR2019/050378| WO2019158890A1|2018-02-19|2019-02-19|Signaling device for a motor vehicle, comprising an opaque screen that can be penetrated by a greater amount of light emitted by a light source concealed behind said screen|
    [返回顶部]