• 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 method for obtaining a light device (1) whose appearance is different from the off aspect, said device comprising a mask (14) able to be partially traversed by the light, one or more light sources and a closure glass (12) disposed downstream of the mask (14). The light source (s) and the mask (14) are arranged relative to one another so that the mask (14) receives directly or indirectly the light rays emitted by the light source (s) and that only a part of these light rays emitted passes through the mask. According to the invention, the method comprises a step of arranging the light source (s) in the light device (1) in number and power so that the light rays emerging from the light device (1) form a beam illuminated signaling.
    公开号:FR3071033A1
    申请号:FR1758449
    申请日:2017-09-12
    公开日:2019-03-15
    发明作者:Jean-Marc Colombel；Erwan Faoucher；Francois Gratecap
    申请人:Valeo Vision SA；
    IPC主号:
    专利说明:

    Method for obtaining a luminous device whose extinct appearance is different from the lit aspect
    The present invention relates to a method for obtaining a light device for a motor vehicle. This light device can have a signaling function.
    More particularly, the invention relates to a method for obtaining a light device of which
    The aspect when it is off, also called aspect off, is different from the aspect when it is on, also called aspect on.
    In the field of motor vehicle lighting, manufacturers are seeking not only to improve the signaling function of light devices but also to add other technical and / or aesthetic features to them in order to give complete satisfaction to users of the vehicle.
    Among these features, manufacturers have added a technology called "ghost", or commonly called "Ghost effect" in English, in light devices. This technology consists in giving an extinct aspect different from the unexpected lit aspect to the light device. For example, when the light device is turned off, it may have a raw shiny black appearance which gives the user the impression that when the device is turned on, the light beam would be uniform. However, when the light device is turned on, a light pattern appears while allowing the light device to perform its signaling function. This pattern can be purely decorative, include a manufacturer's logo, or even a signaling function, such as a night position light.
    There are different solutions for producing a light device which performs a signaling function and at the same time has a so-called "Ghost effect". Nevertheless, the existing solutions remain perfectible, in particular in terms of cost and adaptability to different structures of the light device exhibiting a "ghost" effect.
    Thus, an objective of the invention is to propose a method for obtaining a light device performing at least one signaling function and at the same time having a ghost effect.
    To this end, the invention relates to a process for obtaining a
    light device including the lit aspect is different from the aspect off, said device comprising - a suitable mask to be partially crossed by the
    light, one or more light sources, and a closing lens disposed downstream of the mask, the light source or sources and the mask being arranged in relation to each other so that the mask receives directly or indirectly the light rays
    issued by the or light sources and that only a part of these emitted light rays pass through the
    mask.
    According to the invention, the method comprises a step of arranging the light source (s) in number and in power in the light device so that the light rays leaving the light device form a signaling light beam.
    In other words, for a given transmission rate of light rays from the mask and the closing glass, the light beam depends on the arrangement of the light sources used to perform the signaling function. In this way, it suffices to know the characteristics of the outgoing light beam and to adapt the configuration of the light sources accordingly.
    Thus, the method proposed by the invention makes it possible to achieve with the same elements, in particular the light sources, not only a ghost effect, thanks to its mask allowing the light rays which partially reach it to pass through, but also at least one function. signaling. Furthermore, this process therefore allows a reduction in the parts and the light sources used. The process is thus less complex and less expensive.
    The adaptation of the light sources can be at the level of the quantity, their individual power, their position in the light device and possibly with respect to shaped optical parts, for example lenses, and to the power supply. .
    According to the invention, said signaling function can be in accordance with national or regional regulations in the country where the light device is manufactured and / or marketed, for example in Europe, in particular in the European Union.
    The method according to the invention can optionally have one or more of the following characteristics:
    the process includes the steps of:
    o determine the percentage of light rays passing through the mask, o determine the percentage of light rays passing through the closing glass, o determine the value of the required light flux of the light beam leaving the light device so that the light beam is a beam indicator light, and o determine the initial value of flux required by
    upstream of the mask so that this than the value of the flux bright required either equal at the value initial multiplied by the percentage of rays luminous crossing the mask, then by the percentage rays
    light passing through the closing glass, o choose the number and the power of the light source (s) so that the flux emitted upstream of the mask is equal to the initial value;
    it is a simple method of carrying out the method according to the invention;
    the light device comprises several light sources, the method comprising the steps of:
    o determine the percentage of light rays passing through the mask, o determine the percentage of light rays passing through the closing glass, o consider a measurement grid associating the light intensities required at determined coordinate points, determine for each of the determined coordinate points the initial value of the light intensity required in at least one position given in the device it is what each equals the luminous and upstream of the mask, so as to value of the required luminous intensity percentage these the of points value rays of initial determined coordinates multiplied by light crossing then by the percentage of light rays the ice choose light closing mode, the number to associate with that and the power of at each of the positions the light intensity at for either the mask , crossing sources data level of from this position orient the data either equal l to the light sources positions given in such a way as to this initial value, in each of those which they emit towards the points of determined coordinates which are associated with them, connect the light sources so as to control independently of light in whatever they are one from the other ;
    simple method of producing a device capable of being carried out according to the invention with, when the rear face, a more precise distribution of the intensities;
    mask is formed by a diffusing film plated on a transparent, or translucent and non-diffusing plate, the step of determining the percentage (X) of light rays passing through the mask takes into account the percentage of light rays passing through the plate and the percentage light rays passing through the film;
    - when the light source (s) are associated with a
    optical deflecting light rays issued by the source (s) of light towards the mask, the process also includes:o a step to determine the percentage of raysbright deviated, o the stage of determine for each of the points ofcontact information determined the initial value of1'intensité light necessary in at least a
    position given in the light device and upstream of the mask, is carried out so that the value of the light intensity required for each of these determined coordinate points is equal to the initial value multiplied by the percentage of deflected light rays, then multiplied by the percentage (X) of light rays passing through the mask, then by the percentage (Y) of light rays passing through the closing glass;
    the optics can for example be a reflector or a lens, or a combination of at least one reflector and at least one lens.
    In the present description, the light sources can comprise at least one light-emitting diode, also called shorthand LED.
    The subject of the invention is also a light device whose lit aspect is different from the unlit aspect, obtained from the method according to the invention.
    According to the invention, the light device can comprise a mask capable of being partially traversed by light, one or more light sources and a closing lens disposed downstream of the mask. The or at least one of the light sources and the mask are arranged in relation to each other so that the mask receives directly or indirectly the light rays emitted by the light source (s) and that only a part of these light rays passes through the mask. In addition, the light source or sources are arranged in such a way that the light rays leaving the light device form a signaling light beam.
    Thus, on the one hand, thanks to the presence of the mask, a luminous device is obtained which produces a ghost effect when it goes from the off state to the on state and vice versa. In fact, in the off state of the light device, the parts closed off by the mask appear as inactive zones, that is to say zones which are expected to keep the same appearance when the light device is alight.
    However, given the peculiarity of the mask, in the lit state of the light device, the closed parts become unexpectedly bright areas. Thus, the turned on aspect of the light device is different from its turned off aspect. The light device according to the invention does indeed have a so-called “Ghost Effect”.
    On the other hand, due to the arrangement of the light source or sources, the light device performs at least one signaling function.
    The light device may include light sources having different functions, for example a first source performing the signaling function and a second source performing the decoration function.
    The light device according to the invention can optionally have one or more of the following characteristics:
    - The light device comprises several light sources, the light sources having an arrangement and connections in the light device allowing them to be controlled independently of one another;
    - the light source (s) are arranged opposite the mask; in this case, the mask directly receives the light rays emitted by the light sources;
    - alternatively or cumulatively to the preceding paragraph, the mask receives light rays reflected by shaped optical parts; thus, the mask receives light indirectly;
    - the mask receives light rays emitted by light sources via a light guide;
    the mask comprises a plate capable of being partially traversed by the light, said plate comprising a front face visible from the outside and a rear face opposite to the front face, and the mask also comprising a coating disposed on the rear face of the plate and comprising at least one open area covered by the plate, the mask and the or at least one of the light sources being arranged so that the open area is visible from the outside when the light device is switched on;
    - according to the previous paragraph, the coating can be reflective; alternatively, the coating is opaque and non-reflective;
    - the plate can be translucent and the coating can be diffusing;
    the light device comprises a segmentation piece comprising one or more through cavities, one or more light sources upstream of the segmentation piece, the light device being arranged so that the through cavity or cavities receive directly or indirectly the light from at least one light source, the mask closing at least one through cavity of the segmentation piece; thus, in the off state of the light device, the cavity or cavities closed by the mask appear as inactive zones, that is to say zones which are expected to keep the same appearance when the light device is on ; however, given the particularity of the mask, in the lighted state of the light device, the closed cavity or cavities unexpectedly become luminous zones;
    - The segmentation piece comprises several through cavities, the mask comprising at least one perforated area, the mask and the segmentation piece are arranged relative to each other so that the perforated area is arranged opposite d 'at least one through cavity;
    - The light device comprises several light sources, the segmentation piece comprising several through cavities, said light device being arranged so that each through cavity receives directly or indirectly the light from at least one separate light source;
    - the mask is made from a diffusing and translucent material; in particular, in the case where the light sources are at a distance from the mask, the translucent material lets light pass but it does not make it possible to clearly distinguish the object seen through this material;
    - according to the previous paragraph, the material of the mask is dark; for example, the mask is made from a polymer material from the family of polycarbonates or polyethersulfones to which additives give the mask a dark shade; the mask can also be produced from any transparent and potentially injectable or thermoformable material, for example from the polymer of the polymethyl methacrylate or polyurethane family, to which additives can be added which give the mask a dark shade;
    - the mask is made from a material allowing 5% to 20% of the light reaching it to pass;
    - the beam luminous of signaling realize the function of a fire stop; the stop light i indicates braking vehicle e;- the beam luminous of signaling realize the function of a fire of position nocturne • Well heard, the beam bright can achieve others
    light functions, such as the function of a fog light, a reversing light, a position light, a direction indicator and a daytime running light (also called DRL, for "day running light "in English).
    Other characteristics and innovative advantages will emerge from the description below, provided for information and in no way limitative, with reference to the appended drawings, in which:
    - Figure 1 shows a front view of a first embodiment of a light device obtained by an exemplary method according to the invention;
    - Figure 2 shows a front view of a mask forming part of the light device of Figure 1;
    - Figure 3 shows an exploded perspective view of the light device of Figure 1;
    - Figure 4 shows, schematically, a side view of a second embodiment of a light device obtained by an exemplary method according to the invention;
    - Figure 5 shows, schematically, a measurement grid associating the light intensities required at coordinate points present on the grid. .
    Unless otherwise indicated, in the present description, the terms "front", "rear", "lower" and "upper" refer to the direction of light emission outside the corresponding light device. The terms "upstream" and "downstream" refer to the path traveled by the rays from the light source to their exit from the light device. Furthermore, the terms "horizontal", "vertical" or "transverse" are defined relative to the orientation of the light device once it is mounted in the vehicle.
    Referring to Figure 1, a light device 1, according to a first embodiment, is installed in a housing 11 intended to be installed at a place dedicated to the light device 1 in a vehicle.
    In general according to the invention, this box 11 can be located at the front or at the rear depending on the signaling function performed by the light device 1.
    In the example illustrated, the box is installed at the rear of the vehicle.
    The light device 1 comprises a closing glass 12 forming a barrier with the outside and letting the light pass.
    In the example illustrated, the closing glass 12 is made from a transparent material. Transparent means the character of an element which lets light through and makes it possible to clearly distinguish the shape of the object seen through this element.
    In this example, the transmission rate of the closing glass 12 is greater than 80%, in particular this rate is approximately 89%.
    Referring to Figure 3, the interior of the light device 1 is shown. The light device 1 comprises a segmentation piece 13, a mask 14 and several printed circuit boards 15. For the sake of clarity, a single printed circuit board 15 is illustrated. The printed circuit boards 15 are fixed to the rear of the segmentation piece 13 while the mask 14 is fixed to the front of the same piece.
    The segmentation piece 13 comprises several through cavities 130 arranged one next to the other. In the example illustrated, each through cavity 130 has the shape of a diamond. Of course, in another embodiment, the through cavities can have other shapes and orientations.
    In addition, in the example illustrated, the segmentation piece 13 is covered with a reflective coating.
    Light sources (not illustrated in the figures) are arranged on the printed circuit board 15 so that once this board is fixed to the segmentation piece
    13, at least one light source is arranged in front of a through cavity
    130 corresponding.
    In this example, each light source consists of two
    LEDs emitting light to a corresponding through cavity.
    Furthermore, according to the invention and in this example, the light sources have an arrangement and connections in the light device allowing them to be controlled independently of one another, for example using a piloting device, also called "driver" in English. Given that each cavity 130 receives at least one light source and that these sources are managed by the control device, the lighting of each of the cavities can be adjusted, closed or not closed by the mask. The control device can be mounted in or on the light device 1 or even be arranged in the vehicle at a distance from the light device.
    In addition, the light sources can be adjusted in intensity one independently of the other. In this way, the light sources can be controlled so that each through cavity 130 is turned on with the desired intensity.
    The mask 14 is installed at the front of the segmentation piece 13. In the example illustrated, the mask 14 is screwed to the segmentation piece 13 but other fixing means can be envisaged. Thus, the mask 14 directly receives light rays emitted by the light sources.
    Perforated areas 142 are produced in the mask 14 so that when the mask 14 is fixed to the segmentation piece 13, each perforated area 142 is opposite a corresponding through cavity 130.
    According to the invention and optionally, each perforated area 142 is covered with a transparent element, that is to say an element allowing light to pass through and making it possible to clearly distinguish the object seen through this element. For example, the transparent element is a piece of polymethyl methacrylate (PMMA) or Plexiglas®. Alternatively, a second transparent mask with a smooth appearance can be applied to the dark diffusing mask. This transparent element may in particular have the shape of a prism.
    According to the invention, as here, each perforated zone can have the same shape and the same orientation as those of the corresponding through cavity 20.
    In the example illustrated, the mask 14 is made from a material allowing 10% of light to pass through. In addition, this material is diffusing and translucent. In particular, the diffusing material diffuses light uniformly for an observer. Furthermore, by way of example, in the case where the light sources are located at a distance from the mask, the material
    translucent leaves pass the shelves luminous but do not allows not to clearly distinguish contours of the object seen at through this material. Otherwise, The mask 14 may have a color dark or dark. Especially in this example, The mask 14 is of color
    black. Thus, thanks to the dark or black shade of the mask, only the cavities 130 opposite the openwork areas, called non-closed cavities 132, are visible from the outside, while the cavities closed 131 by the mask 14 are not. .
    The closing glass 12 (not illustrated in FIG. 2) is placed in front of the mask 14. The light device 1, as arranged, emits a light beam in a light-emitting direction in the direction E illustrated in FIG. 3 .
    By the presence of the mask 14, in the off state of the light device 1, the latter gives the user the impression that only the places of the visible, non-closed cavities 132 will be lit and that the other places, perceived as black or dark , will keep the same appearance when the light device 1 is on.
    When the device is switched on, the closed cavities 131 are also unexpectedly visible because the mask partially lets the light through and each cavity receives at least one light source. The light device illustrated according to the first embodiment therefore has a "ghost" effect.
    At the same time, the light device 1, when it is switched on in a given manner, performs a signaling function, thanks to the method according to the invention which will be detailed below. In this example, the signaling function carried out is the signaling for the rear light of a vehicle. This function can be a night position light function, or a stop light function or other light functions, such as the function of a fog light, a reverse light, a position light , a direction indicator and a daytime running light (also called DRL, for "day running light" in English).
    An example of a light pattern performing the signaling function is shown in Figure 1. As explained above, the lighting of each through cavity
    130 can be different because the light sources can here be adjusted in intensity and lighting independently of one another. Thus, the light pattern comprises through cavities 130 whose light intensity is different.
    It should be noted that in the example illustrated the through cavities
    130 forming part of the light pattern 16 are, in this example, the cavities closed off 131 by the mask 14. In order to facilitate the reading of FIG. 1, dashed arrows I are presented to show the correspondence of the cavities 130 in FIG. 1 with the openwork areas 142 of the mask in the figure
    In figures and
    2, we see non-closed cavities
    132 by the mask, that is to say the cavities located opposite the openwork areas
    142 of mask 14, which are not illuminated.
    Some of these cavities are referenced from left to right in Figure 1132a,
    132b, 132c, 132d and 132e. These are located respectively opposite openwork areas 142a, 142b, 142c, 142d and 142e.
    On the other hand, some of the closed cavities 131 are lit but in a different way. For example, three lighted cavities
    131a, 131b, 131c, each having a different light intensity, surround the unblocked and unlit cavity 132e, located furthest to the right in FIG. 1. The illuminated cavity 131a located above cavity 132e has the weakest luminous intensity among the three lit. The illuminated cavity 131b situated next to the cavity 132f has a medium intensity, while that below 131c has a high intensity.
    As here, it is possible to arrange one or more cavities closed but not lit, for example, this is the case of the cavity 132f located below the cavities 132d and 132g in FIG. 1.
    According to the invention, the light device can be arranged so as to be able to make it possible to control or to control the light sources according to several combinations of switching on and off, so as to:
    - modify the illuminated pattern while retaining the same signaling function,
    - modify the lighted pattern to perform various additional functions, such as a direction indicator function, a welcome scenario when you unlock or open the vehicle (or “welcome scenario” in English).
    Referring to Figure 4, the light device 2, according to a second embodiment, comprises a mask 22 and a main light source 25. In this example, the light device is a vehicle headlight.
    Here, the light device 2 also comprises a conventional optical module 20 comprising a reflector 27 of elliptical type and a shaped optical part 21, for example a lens 21. The reflector reflects the light rays from the light source 25 towards the optical lens 21, which directs these light rays towards the closing glass 12 to form an illumination beam.
    The mask 22 comprises a plate 24 able to be partially traversed by the light rays. In this example, the plate 24 is made of the same material as that shown in Figures 1 and 2. Specifically, the plate 24 is made of a translucent material, diffusing and dark in color. The plate 24 has a front face 244 visible from the outside and a rear face 243 opposite the rear face 244.
    The mask 22 also includes a reflective coating 23 adhering to the front face 243 of the plate 24.
    In the example illustrated in FIG. 4, the reflective coating 23 comprises an openwork area 231. This openwork area 231 may have the shape of the badge of the vehicle model or of the manufacturer. The perforated zone 231 can be produced by cutting the coating 23, for example by partial and / or total ablation by laser.
    According to the invention and in another embodiment, the reflective coating 23 can be replaced by an opaque and non-reflective coating, for example a layer of opaque paint. This covering may include at least one perforated area similar to that shown in FIG. 4.
    A secondary light source 26 is installed opposite the open area 231 in order to make it visible when this source 26 is switched on.
    In the example illustrated, the secondary light source 26 is turned on at the same time as the main light source 25 and turned off as well as it.
    On the front surface of the mask 22, which therefore corresponds to the front surface of the plate 24, there is a first part 241 and a second part 242. The first part 241 of the mask 24 is superimposed on the non-perforated portion 232 of the coating 23. The
    second part 242 East in opposite the openwork area 231.When the source of light secondary 26 is on, the second part 242 of the plate 24 appears lit while than the first one part 241 preserve the dark aspect conferred by the
    constituent material of this plate 24.
    When the secondary light source 26 is switched off, the rear face 244 of the plate 24 has a dark uniform appearance since the plate 24 is made of a dark diffusing material and the reflective coating 23 is located in front of the plate 24. Of course, it is assumed that the surface of the perforated zone 231 on the covering 23 is a minority compared to the total surface of the same covering 23.
    Thus, the ignition of the secondary light source 26 makes it possible to distinguish a pattern on a uniform background. The light device 2 according to the second embodiment thus has an turned on aspect of the projector, namely when the main 25 and secondary 26 light sources are on, different from the turned off aspect of the projector, namely when the main light sources 25 and secondary 26 are off.
    In parallel, the light device 2 in the on state, for example according to the first scenario, performs a light function, for example a direction indicator function, thanks to the method according to the invention which will be detailed below.
    According to another exemplary embodiment, the light device is a vehicle rear light and includes a mask similar to that described in FIG. 4 except that the covering comprises several openwork areas arranged so as to form a light pattern. Light sources are positioned opposite the openwork areas so that when the light device is switched on, the light pattern appears visible and at the same time performs a signaling function. For example, the light pattern can be the same as that described in FIG. 1.
    The process for obtaining a light device produced according to the first or the second embodiment will be described.
    First, for a light device 1 or 2 having a lit aspect different from the turned off aspect, for example like that illustrated in FIG. 1 or in FIG. 4, the percentage of light rays passing through the mask 14 or 22 is determined. and the percentage of light rays crossing the closing glass 12.
    Next, the value of the required light flux of the light beam leaving the light device 1 or 2 is determined so that the light beam is a signaling light beam. For example, the value of the required light flux may be imposed by national or regional regulations so that the light beam can be accepted as a signaling light beam. The signaling function can be a night position light function, or a stop light function.
    Then, it is determined what is the initial value of the light flux upstream of the mask 14 or 22 as a function of the value of the required light flux. Namely, the value of the required light flux is equal to the initial value multiplied by the percentage of light rays passing through the mask 14 or 22, then by the percentage of light rays passing through the closing glass 12. By knowing the last two data and the value of the luminous flux required, it is thus possible to deduce the initial value of the luminous flux upstream of the mask 14 or 22.
    From the initial value obtained, the number and the power of the light sources are chosen so that the flux emitted upstream of the mask 14 or 22 is equal to the initial value. Here, the flux emitted upstream of the mask 14 or 22 is the sum of the luminous flux of all the light sources.
    Thus, by following the steps of the method presented above, a light beam is obtained leaving the light device 1 or that performs a signaling function.
    according to
    The invention and in this example, one can, alternatively or cumulatively, one can determine the mask percentage 14 or 22 and the percentage at the stages presented above of light rays crossing the of light rays crossing the closing glass 12 in the case where these percentages have not been determined.
    Next, we consider a measurement grid associating the light intensities required at determined coordinated points. An example of the measurement grid 4 is illustrated in FIG. 5. The measurement grid 4 has vertical axes Y m and horizontal axes X n crossed with each other at points of coordinates A (X n , Y m ). For reasons of clarity and simplification, in the diagram illustrated, n and m are equal to 4. On each of these coordinate points is displayed the required light intensity V nm of the light beam at this point. For example, the measurement grid and the value of the required light intensities are required by regulation.
    From this measurement grid 4, for each of the determined coordinate points A (X n , Y m ), the initial value of the light intensity is determined at a corresponding position located upstream of the mask 14 or 22 in the light device 1 or 2.
    Note that for each of the determined coordinate points A (X n , Y m ), the value of the required light intensity is equal to the initial value multiplied by the percentage of light rays passing through the mask, then by the percentage of rays luminous crossing the closing glass. Thus, by knowing the two percentages and the value of the light intensity required for each coordinate point, it is possible to deduce the initial value of the light intensity required in a corresponding position upstream of the mask 14 or 22, in the light device. 1 or 2.
    Next, the number and the power of the light sources to be associated with each of the given positions are chosen so that the light intensity at this given position is equal to the initial value.
    Next, the light sources are oriented in each of the given positions so that they emit towards the determined coordinate points which are associated with them.
    Furthermore, the light sources in the light device 1 or 2 are connected so that they are capable of being controlled independently of one another.
    Thus, according to the method, for a given transmission rate of the mask and the closing glass, the light sources can be arranged so that the light device 1 or 2 not only performs a signaling function but also has a technical effect. says "Ghost Effect".
    权利要求:
    Claims (2)
    [1" id="c-fr-0001]
    1. Method for obtaining a light device (1; 2) whose lit aspect is different from the turned off aspect, said device comprising a mask (14; 22) capable of being partially traversed by light, one or several light sources (25, 26), and a closing glass (12) arranged downstream of the mask (14; 22), the light source or sources and the mask (14; 22) being arranged one with respect to to the other so that the mask (14; 22) receives directly or indirectly the light rays emitted by the light source (s) (25,26) and that only a part of these emitted light rays passes through the mask ( 14; 22), said method being characterized in that it comprises a step of arranging the light source (s) in the light device (1; 2) in number and in power so that the light rays exiting of the light device (1; 2) form a signaling light beam.
    2. Method according to claim 1 characterized in that it comprises the steps of:
    determining the percentage of light rays passing through the mask (14; 22);
    determining the percentage of light rays passing through the closing glass (12);
    determining the value of the required luminous flux of the light beam leaving the light device (1; 2) so that the light beam is a signaling light beam;
    determining the initial value of flux required upstream of the mask (14; 22) so that the value of the required luminous flux is equal to the initial value multiplied by the percentage of light rays passing through the mask (14; 22), then by the percentage of light rays passing through the closing glass (12); and choose the number and the power of the light source (s) so that the flux emitted upstream of the mask is equal to the initial value.
    3. Method according to claim 1 or according to claim 2, in which the light device comprises several light sources, the method being characterized in that it comprises the steps of:
    determine the percentage of light rays passing through f
    determine the percentage of light rays passing through
    closing glassconsider i (12)donkey fgrid of measure (4) combining intensities bright required (Vnm) at points of contact information determined (A (Xn, Ym) ); determine, for each of the points of coordinated determined (A (Xn, Ym)), the value initial of 1'intensité light necessary in at least a position given in the device luminous (1; 2) and in upstream of the mask ( 14; 22), of
    of the light intensity required so that the value at each of these coordinate points is equal to the initial value multiplied by the percentage of light rays passing through the mask (14;
    22), then by the percentage of light rays crossing the ice to choose light to associate the number and the power of the sources of with each of the given positions so that the light intensity at this given position is equal to the initial value orient the light sources in each of the given positions so that they emit towards the points of determined coordinates (A (Xn, piloted light associates connect the sources (1; 2) independently of one of light what they
    1'autre.
    ; 2) obtained in are according to one the device able to be from the process
    Lighting device of the preceding claims characterized in that:
    the light device (1; 2) comprises a mask (14;
    be partially traversed by the light, one or (12) disposed downstream of the mask (14; 22);
    - the or at least one of the light sources (25, 26) and the mask (14; 22) are arranged relative to each other so that the mask (14; 22) receives directly or indirectly the light rays emitted by the light source (s) and that only part of these light rays pass through the mask (14; 22), and - the light source (s) are arranged so that the light rays leaving the device luminous (1; 2) form a signaling light beam.
    5. Light device (1; 2) according to claim 4 characterized in that the light device (1; 2) comprises several light sources and in that the light sources (26) have an arrangement and connections in the device light allowing them to be controlled independently of one another.
    6. Light device (1; 2) according to claim 4 or according to claim 5, characterized in that the light source or sources (26) are arranged opposite the mask (14; 22).
    7. Light device (1; 2) according to one of claims 4 to 6 characterized in that the mask receives light rays reflected by shaped optical parts.
    8. Luminous device (2) according to one of claims 4 to 7, characterized in that:
    - The mask (22) comprises a plate (24) able to be partially traversed by light, said plate (24) comprising a front face (244) visible from the outside and a rear face (243) opposite the front face (244), the mask also comprising a coating (23) disposed on the rear face (243) of the plate (24) and comprising at least one perforated area (231) covered by the plate (24);
    - The mask (24) and the or at least one of the light sources (26) are arranged so that the open area (321) is visible from the outside when the light device (2) is on.
    9. Light device (1) according to one of claims 4 to 7, characterized in that it comprises:
    a segmentation piece (13) comprising one or more through cavities (130);
    one or more light sources upstream of the segmentation piece (130);
    said light device (1) being arranged so that the through cavity or cavities receive directly or indirectly the light from at least one light source;
    and in that the mask (14) closes at least one through cavity (130) of the segmentation piece (13).
    10. Light device (1) according to claim 9, several through cavities (130), and in that the mask (14) comprises at least one perforated zone (142) and in that the mask the part are arranged one relative to each other so that the perforated area is arranged opposite at least one through cavity (130).
    11. Luminous device (1) according to claim 9 or
    10, characterized in that the light device (1) comprises several light sources, in that the segmentation piece (13) comprises several cavities and in that said light device (1) is arranged so that each cavity through (130) directly or indirectly receives light from at least one separate light source.
    12. Lighting device (1;
    [2" id="c-fr-0002]
    2) according to one of claims 4 to
    11 characterized in that
    22) is made from a diffusing and translucent material.
    13. Lighting device
    2) according to
    One of; 22) is made from a material allowing 5 to 20% of the light reaching it to pass through.
    14. Light device (1; 2) according to one of claims 4 to 13 characterized in that the light beam
    5 signaling performs the function of a brake light.
    15. Light device (1; 2) according to one of claims 4 to 13 characterized in that the signaling light beam performs the function of a night position light.
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    同族专利:
    公开号 | 公开日
    CN109488892B|2021-12-14|
    US20190078751A1|2019-03-14|
    FR3071033B1|2021-11-19|
    US10808906B2|2020-10-20|
    CN109488892A|2019-03-19|
    EP3453956A1|2019-03-13|
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    WO2015090069A1|2013-12-21|2015-06-25|珠海市唯能车灯实业有限公司|High backlight brake light|
    EP3208528A1|2016-02-18|2017-08-23|Valeo Vision|Lighting assembly for lighting and/or signalling of a motor vehicle|
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    GB1591013A|1978-05-30|1981-06-10|Lucas Industries Ltd|High contrast lamp assembly|
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    JPH0664926B2|1988-06-30|1994-08-22|市光工業株式会社|Vehicle lighting|
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    TWI482140B|2011-04-29|2015-04-21|Geo Semiconductor Inc|System and method for improving color and brightness uniformity of backlit lcd displays|
    CN204440008U|2015-01-09|2015-07-01|深圳清溢光电股份有限公司|The conjunction beam system that optical mask chromium plate is repaired|
    CN105628344B|2016-01-29|2019-02-01|深圳英伦科技股份有限公司|Backlight module and its light transmission uniformity detection system and its LED mix pearl matching method|DE102017117392A1|2017-08-01|2019-02-07|HELLA GmbH & Co. KGaA|Lighting device for vehicles|
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    DE102020109841A1|2020-04-08|2021-10-14|OSRAM CONTINENTAL GmbH|ARRANGEMENT AND VEHICLE|
    法律状态:
    2019-03-15| PLSC| Publication of the preliminary search report|Effective date: 20190315 |
    2019-09-30| PLFP| Fee payment|Year of fee payment: 3 |
    2020-09-30| PLFP| Fee payment|Year of fee payment: 4 |
    2021-09-30| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1758449A|FR3071033B1|2017-09-12|2017-09-12|PROCEDURE FOR OBTAINING A LUMINOUS DEVICE WHOSE OFF ASPECT IS DIFFERENT FROM THE ON ASPECT|
    FR1758449|2017-09-12|FR1758449A| FR3071033B1|2017-09-12|2017-09-12|PROCEDURE FOR OBTAINING A LUMINOUS DEVICE WHOSE OFF ASPECT IS DIFFERENT FROM THE ON ASPECT|
    EP18193457.1A| EP3453956A1|2017-09-12|2018-09-10|Method for obtaining a luminous device with different appearance when turned on and turned off|
    US16/129,363| US10808906B2|2017-09-12|2018-09-12|Method for obtaining a luminous device the turned-off aspect of which is different from the turned-on aspect|
    CN201811065355.3A| CN109488892B|2017-09-12|2018-09-12|Method for obtaining a lighting device having a different off configuration from an on configuration|
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