• 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:
    A lens for a motor vehicle lighting device, the lens comprising a rear face intended to be oriented towards a light source of the lighting device, and a convex front face (18) intended to be oriented towards a road surface at illuminating, the lens (10) having a vertical median plane (P) intended to be substantially orthogonal to the roadway, the front face having a first diffusion zone (Z1) having microstructures (20) adapted to diffuse the light emitted by the light source, the first diffusion zone (Z1) extending along the median plane (P), the front face further comprising at least two second diffusion zones (Z21, Z22) each having microstructures (20) adapted to diffusing the light emitted by the light source, the two second diffusion zones lying on either side of the vertical median plane, the microstructures of the second zones of diffusion fusion (Z21, Z22) having a depth strictly greater than the depth of the microstructures (20) of the first diffusion zone (Z1).
    公开号:FR3048485A1
    申请号:FR1651753
    申请日:2016-03-02
    公开日:2017-09-08
    发明作者:Marie Pellarin；David Bourdin；Stephane Andre
    申请人:Valeo Vision SA；
    IPC主号:
    专利说明:

    The invention relates to the field of lenses for a motor vehicle lighting device, and in particular for lighting devices adapted to perform the functions of dipped beam headlamps and headlamps. road.
    This type of device often comprises two light sources respectively associated with one of these functions, one of the light sources being for example illuminated during the implementation of the dipped beam function, both being the implementation of the high beam function. Generally, this type of device further comprises an element, such as a folder or a mask, configured to generate a cut line within the light beam generated by the device, in particular during the implementation of the light function. crossing. The configuration of the cut-off line is prescribed by regulations, which stipulate, for example, that the cut-off line forms a demarcation at the given light gradient between the area of the illuminated space and the dark area above it. One of the drawbacks in the current lighting devices lies in the fact that during the implementation of the high beam function, the cut in question remains clearly marked and forms a dark band between the beams of high beam and low beam. But this clear demarcation between the two beams is likely to disrupt the driver's vision. The invention improves the situation. For this purpose, the invention relates to a lens for a motor vehicle lighting device, the lens comprising a rear face intended to be oriented in the direction of a light source of the lighting device, and a front face intended to be oriented towards a pavement to be illuminated, the lens having a vertical median plane intended to be substantially orthogonal to the pavement, the front face having a first diffusion zone having microstructures adapted to diffuse the light emitted by the light source, the first zone diffusion region extending along the vertical median plane, the front face further comprising at least two second diffusion zones each having microstructures adapted to diffuse the light emitted by the light source, the two second diffusion zones being on the one hand and other of the vertical median plane, the microstructures of the second zones of d an illusion having a depth strictly greater than the depth of the microstructures of the first diffusion zone.
    According to one aspect of the invention, the ratio between the depth of the microstructures of the second diffusion zones and the depth of the microstructures of the first diffusion zone is between 1.5 and 3.
    According to one aspect of the invention, the depth of the microstructures of the first diffusion zone is between 1.5 μm and 4 μm.
    According to one aspect of the invention, the depth of the microstructures of the second diffusion zones is between 3 μm and 8 μm.
    According to one aspect of the invention, the depth of the microstructures of a second diffusion zone is strictly greater than the depth of the microstmctures of the other second diffusion zone.
    According to one aspect of the invention, within a given diffusion zone, the microstmctures all have substantially the same depth.
    According to one aspect of the invention, the microstmctures have a maximum radius of between 0.5 mm and 1 mm.
    According to one aspect of the invention, the first diffusion zone has a general band shape extending along the vertical median plane.
    According to one aspect of the invention, the first diffusion zone has a generally circular shape.
    According to one aspect of the invention, the first diffusion zone has a width of between 20% and 60% of a diameter of the lens.
    According to one aspect of the invention, the front face comprises a third diffusion zone extending substantially orthogonal to the median plane, the third diffusion zone extending from a lower end of the first and second diffusion zones towards the one end of the front face of the lens.
    According to one aspect of the invention, the third diffusion zone has microstmctures adapted to diffuse the light emitted by the light source, the microstmctures of the third zone having a depth substantially identical to the depth of the microstmctures of the first diffusion zone. .
    According to one aspect of the invention, the first and third diffusion zones jointly define on the front face of the lens a coimex diffusion region.
    According to one aspect of the invention, the front face has, at a lower end, a region shaped to deflect a portion of the light from the light source for the illumination of gantry points. The invention also relates to a lighting device, in particular a motor vehicle, characterized in that it comprises at least one light source configured to emit light and a lens according to any preceding claim arranged to receive at least a portion of the light emitted by the light source.
    According to one aspect of the invention, the lighting device comprises a first light source associated with a low beam function of the lighting device, a second light source associated with a high beam function of the lighting device. lighting, and a cutoff element adapted to generate a cut line within a light beam emitted by the lighting device. The invention will be better understood on reading the detailed description which follows, given solely by way of example, and with reference to the appended figures, in which: FIG. 1 is a schematic illustration of a device of FIG. lighting according to the invention; FIGS. 2a and 2b illustrate the light beams produced by the device of FIG. 1 during the implementation of one and the other of two functions of the device of FIG. 1; - Figure 3 is a front view of a lens according to the invention; and - Figure 4 illustrates a sectional view of microstmctures of the lens of Figure 3.
    FIG. 1 illustrates a lighting device 2 according to the invention, hereinafter device 2.
    In the context of the invention, the device 2 is advantageously a motor vehicle lighting device, that is to say that it is intended to be integrated with a motor vehicle.
    In addition, the device 2 is advantageously a front projector, that is to say a headlight.
    Advantageously, the device 2 is adapted for the implementation of two distinct lighting functions: a low beam function, called "code" function, and a high beam function, called "road" function.
    The light beam generated by the device 2 during the implementation of the "code" function is illustrated in FIG. 2a. It has, in its upper part, a cut C which demarcates the area illuminated by the beam and located below the cut C, the dark and unlit area above it.
    For example, the cut has a first straight portion in the left portion and a second straight portion in the right portion. The second rectilinear portion is for example located at a different height of the first portion. These two portions are separated by an inclined intermediate portion.
    The light beam generated by the device 2 during the implementation of the "road" function is illustrated in FIG. 2b. The beam has substantially the same configuration as in Figure 2a in the lower part, and further has an illuminated area above the cut C, which then separates the two illuminated areas.
    Again with reference to Figure 1, the device 2 comprises a housing 4, at least one light source 6, an element 8 configured to generate the cut C, and a lens 10 according to the invention.
    The housing 4 is configured to house the light source or sources 6. It is further configured to reflect the light emitted by these sources towards the lens 10.
    The housing 4 comprises for example an upper portion 12 and a lower portion 14 respectively associated with at least one of the two functions of the device 2. More specifically, the upper portion 12 is associated with the code and route functions, and the lower portion 14 is associated with the only route function.
    The upper part 12 comprises for example a plurality of curved half-shells reported to each other in pairs at side edges of the latter, and whose respective concavities are turned towards the element 8. Each shell has for example a form of ellipsoid portion.
    For example, the upper part 12 comprises three such shells.
    The lower portion 14 is for example in the form of a shell whose concavity is turned towards the element 8 and the upper portion 12 of the housing 4. It has for example a general shape of ellipsoid portion.
    Alternatively, the lower portion 14 comprises a plurality of such shells reported to each other in pairs at side edges thereof, and whose respective concavities are turned towards the element 8 and the upper portion 12.
    The inner face of the upper 12 and lower 14 portions is configured to reflect the light emitted by the light source or sources 6.
    The light source (s) 6 form the light emitting core of the device 2.
    Advantageously, the device 2 comprises two light sources 6 independent of one another.
    Thus, the device 2 comprises a first light source 6i associated with the code function and the road function, and a second light source 62 associated with the only road function.
    The source 6i is arranged in the casing so as to emit light in the direction of the internal face of the upper part 12 of the casing 4. It is for example arranged at a focus of the shells of the upper part 12. practical, it is for example arranged at the level of element 8
    The source 62 is arranged in the housing so as to emit light towards the inner face of the lower part of the housing 4. It is for example arranged at a focus of the lower part 14.
    The light sources each comprise, for example, one or more light emitting elements, such as light-emitting diodes optionally coupled to a phosphor material configured to convert a portion of the light emitted by these elements to obtain a resulting light of selected color. This resulting light is for example white. The element 8 is configured to generate the cutoff C in the beam produced by the device 2. The element 8 comprises a portion forming a folder, that is to say a reflective cover of shape chosen to give the cutoff C the chosen form. The portion forming the folder is for example arranged substantially horizontally (in the direction of the orientation of Figure 1). It is located at the front end of the element 8.
    The folder has for example a left edge intended to form the first straight portion of the cut C, a right edge offset in height relative to the left edge and intended to form the second straight portion of the cut C, and an intermediate edge inclined to form the inclined intermediate portion of the cutoff C. The element 8 further comprises a portion forming a support for the light source or sources 6. As illustrated in Figure 1, this portion is located at the rear of the element 8, as opposed to the portion forming the folder which is located at the front.
    In the example of Figure 1, these two portions have been represented as comings between them. Alternatively, they are separated from each other.
    Referring to Figure 3, the lens 10 is configured to shape the light that it receives from the sources 6 and the housing 4 so as to generate the output beam (shown in Figure 2a or 2b depending on the function implemented. artwork).
    The lens is on the optical path of the light provided by the light sources after reflection on the inner faces of the housing. For example, the lens is held in a fixed position relative to the housing 4 via a frame (not shown).
    In the context of the invention, and as described hereinafter, the lens 10 is further configured to blur the cutoff C, in particular during the implementation of the route function.
    The lens 10 is a spherical type lens. It is advantageously convergent type. In front view, the lens has a generally circular shape. The diameter of the lens 10 (in the sense of this general circular shape) is for example between 35 mm and 85 mm.
    The lens 10 is for example made from glass. Alternatively, it is made from polymethyl methacrylate (acronym PMMA) or polycarbonate (acronym PC).
    The lens 10 has a substantially horizontal optical axis (in the direction of the orientation of Figure 1). This optical axis is for example substantially at the same height as one of the edges of the element 8, for example its left edge.
    The lens is arranged opposite the housing 4. Advantageously, it is centered with respect to the housing 4.
    The lens 10 has a rear face 16 intended to be oriented towards the housing 4, and a front face 18 for facing a roadway to be illuminated.
    The rear face 16 forms an entrance face of the light in the lens 10. The rear face is for example flat. However, alternatively, the rear face has a convex shape, or any shape.
    The front face 18 forms an exit face of the light. The front face 18 is for example curved. Alternatively, it has any shape. For example, alternatively, it is flat.
    The lens has a median plane P intended to be substantially vertical with respect to the pavement to be illuminated. Here, a median plane means a plane that separates the right part of the lens from its left part, in particular in front view of the lens. In the example of Figure 3, the lens is shown in front view, the plane P being orthogonal to the plane of Figure 3.
    Optionally, as illustrated in FIG. 3, the lens 10 is substantially symmetrical with respect to this plane P. However, it is not excluded that the lens is not symmetrical with respect to this plane.
    Optionally, as illustrated in FIG. 3, the lens has an upper flat and / or a lower flat each defining a substantially flat surface and substantially orthogonal to the plane P. The flats are for example designed to reduce the vertical bulk of the lens. For example, for a lens diameter of 70 mm, the flats are provided so that the height of the lens along the plane P is substantially equal to 60 mm.
    In the context of the invention, the front face 18 have microstructures 20 adapted to diffuse the light passing through the lens, in particular to blur the cutoff C.
    As illustrated in FIG. 4, the term "microstmctures" means roughnesses formed on the surface of the front face 18. By considering a zone 10 of the front face 18, these mgosities can be distributed regularly, that is, say that the pattern defined by the hollows and bumps is regular within the given area, or else distributed unequally.
    These microstructures are for example in the form of depressions in the surface of the front face.
    Advantageously, the microstructures have a mouthpiece of substantially circular shape. The radius of this mouth forms a maximum radius of the microstructure considered. In the context of the invention, the maximum radius microstmctures 20 is advantageously between 0.5 mm and 1 mm.
    The microstructures 20 also have a measured depth, detailed below.
    With reference to FIG. 3, the front face 18 has a first diffusion zone ZI comprising microstmctures 20 adapted to diffuse the light coming from the sources 6, and two second diffusion zones Z2i, Z22 also including microstmctures equally adapted to diffuse the light. light from sources 6. These microstmctures have particular vocation to blur cut C
    The depth of the microstmctures 20 of the first diffusion zone Z1 is strictly less than the depth of the microstmctures 20 of the second diffusion zones Z2i, Z22.
    More specifically, the first zone ZI extends on the front face 18 along the median plane P. Advantageously, the plane P forms a plane of symmetry of the zone Z1.
    Zone ZI has a width (i.e. a dimension transverse to the plane P) of between 20% and 60% of the diameter of the lens.
    Within the zone Z1, the microstmctures advantageously all have substantially the same configuration, and in particular substantially the same depth.
    The microstructure depth of zone Z1 is advantageously between 1.5 μm and 4 μm.
    In addition, the microstmctures are optionally regularly distributed within this zone. For example, they are regularly distributed concentrically with respect to a given point. This point is for example the center of the front face, which is for example halfway up the front face 18 along the plane P. Alternatively, the spatial distribution of microstmctures 20 is not concentric. It is for example substantially matrix, the microstructures being arranged in rows and columns. These lines and columns are for example orthogonal, respectively parallel to the plane P. Alternatively, their distribution within the zone ZI is irregular.
    The zone ZI is for example in the form of a band extending along the plane P. This band has for example a generally rectangular shape. The transverse edges of this strip are substantially perpendicular to the plane P, the longitudinal edges being located each on one side and the other of the plane P symmetrically with respect to each other with respect to the plane P. The upper transverse edge of the strip corresponds for example to the upper end of the front face 18. The lower transverse edge is for example at a distance from the transverse edge greater than half the length of the front face according to the plane P .
    In this configuration, zones Z2i and Z22 are located on either side of zone Z1. Alternatively, zone Z1 has a generally circular shape (shown in dashed lines in FIG. 3).
    Advantageously, the center of zone Z1 is then merged with the center of concentricity of microstructures 20 when the latter are arranged concentrically. For example, in the example of Figure 3, this center is substantially in the center of the front face. This facilitates the design of the lens since it is then easy to ensure that no microstructure is located on the boundary of the zone Z1.
    In certain embodiments such as that of FIG. 3, the upper end of the zone Z1 is located away from the upper end of the front face of the lens along the plane P. In these embodiments, the zones Z2i and Z22 are border along the plane P in the region of the front face located between the upper end of the lens and the upper end of the zone Zl.
    Alternatively, the upper end of zone Z1 is located at the upper end of the front face of the lens. For example, the upper end of the zone Z1 is formed by a portion of the edge delimited by the upper flat surface and the front face (for example by a point of this edge, in which case the zone Z1 is tangential to the end superior of the front face, or by a segment of this edge).
    In certain embodiments, such as those of FIG. 3, the lower end of the zone Z1 is formed by a rope of the general shape of a circle, said rope being orthogonal to the plane P. In other words, the zone Z1 has a general shape of a circle. whose lower end is truncated.
    As described in more detail below, regardless of the shape of the zone Z1, the lower end of the zone Z1 is bordered by a third diffusion zone.
    The second zones Z2i, Z2i extend on both sides of the plane P. They advantageously extend to the lateral edges of the lens 10. Their lower end is situated for example at the same level as the lower end of the plane. zone ZI along the plane P. The respective shapes of these two zones are for example symmetrical to one another with respect to the plane P.
    In some embodiments such as that of Figure 3, the upper ends are for example at the upper end of the front face, for example at the upper flat. Alternatively, depending on the configuration of the zone Z1, and in particular as a function of the width thereof when it is strip-shaped, this upper end may be located away from the flat.
    As previously, within zones Z2i, Z22, the microstmctures 20 advantageously have substantially all the same configuration, in particular substantially the same depth.
    The depth of the microstructures 20 of the zones Z2i, Z22 is advantageously between 3 and 8 pm.
    In addition, the ratio between the depth of the microstructures of the second diffusion zones Z2i, Z22 and the depth of the microstructures of the first diffusion zone Z1 is between 1.5 and 3.
    Furthermore, advantageously, the depth of the microstructures 20 of one of the zones Z2i, Z22 is greater than the depth of the microstructures of the other of these zones.
    Advantageously, the greatest depth is observed within the zone Z2i, located opposite the edge of the bender 8 which is on the optical axis of the lens 10. In the example of the Figures in which the The left edge of the folder is located on the optical axis of the lens, the microstructures 20 of the zone Z22 are deeper than those of the zone Z2i.
    For example, in one embodiment, the depth of the microstructures 20 of the zone Z2i is 4.7 μm, that of the microstructures of the zone 12 being substantially 5.4 μm. The depth of the microstructures of the zone Z1 is then for example substantially 2.4 μm.
    As for the first diffusion zone Z1, the microstmctures of these second zones are for example regularly distributed within zones Z2i, Z22. They are arranged concentrically, or according to a matrix arrangement, or even according to any regular arrangement.
    Alternatively, they are not distributed regularly.
    Still with reference to FIG. 3, the front face 18 advantageously furthermore comprises a third diffusion zone Z3 extending transversely to the median plane. For example, it extends from a side edge of the lens to the opposite side edge. Advantageously, the shape of zone Z3 is substantially symmetrical with respect to plane P.
    The diffusion zone Z3 has microstructures 20 adapted to diffuse the light passing through it. Advantageously, the depth of the microstructures of zone Z3 is similar to that of zone Z1. In addition, their arrangement is advantageously identical to that of zone Z1.
    Zone Z3 is adjacent to zone ZI and zones Z2i, Z22. It extends from the lower end of these areas towards the lower end of the lens. Its upper end is border of the respective lower ends of the zones Zl, Z2i, Zl2. For example, this upper end extends from one side to the other of the front face substantially orthogonal to the plane P.
    The zone Z3 forms, together with the zone Z1, a related diffusion region of the front face. In other words, the region formed by these zones is a continuous region in which the properties of the microstructures are advantageously substantially constant.
    Optionally, the front face 18 further has, at its lower end, a region 22 shaped to deflect the light that arrives for the illumination of gantry points.
    In known manner, these gantry points correspond to elements, such as traffic signs, which are located at a point higher than the beam formed by the device 2, and this as well in road function as function code . This region 22 is thus configured for the deflection of a small portion of the light for the illumination of these high points, for example in directions prescribed by regulations.
    This region 22 is for example adjacent to the zone Z3, and extends between the lower end of the latter and the lower edge of the lens (optionally delimited by the lower flat).
    Advantageously, the zones Z1, Z2i, Z12, Z3 and 22 occupy substantially all of the front face.
    The method of operation of the device 2 will now be described with reference to the Figures.
    During the supply of electrical energy sources 6, for example from the electrical energy provided by a power source of the device 2 (not shown), these sources emit light towards the inner face of the corresponding portion of the housing 4. This light is reflected in the direction of the lens 10, which shapes this light. In particular, this image images the edges of the folder 8, which results in the presence of the cutoff C within the light beam generated.
    In code function, only the source 6i is fed, so that the resulting beam corresponds to that illustrated in FIG. 2a (the possible illuminated areas for the gantry points due to the presence of the region 22 being not shown).
    In road function, the sources 6i and 62 are both powered, the resulting beam being illustrated in FIG. 2b.
    Due to the presence of the Zl, Z2i, Z22, Z3 diflusion zones, and in particular the selective depth of the microstmctures of these zones, in road function, the cutoff C appears more messed up than for the known devices.
    In particular, the blur of the cut C is greater than the distance from the axis than in the axis, for example for lateral positions spaced more than 5 ° to the left and to the right of the axis (the two positions at 5 ° on either side of the axis being classically called 5 ° L and 5 ° R, (L for left, R for right).
    In practice, the presence of zones Z2i and Z22 on the sides of the front face of the lens tends to reduce the light gradient in the lateral zones of the cutoff from the light source specifically associated with the road function.
    For example, in code function, the cutoff gradient is between 0.15 and 0.40 for positions within 10 ° of either side of the axis (i.e. for positions between 10 ° L and 10 ° R).
    For these same positions, the gradient of the cut in the road function is between 0.03 and 0.15.
    In known devices, the gradients are substantially identical in both route and code functions.
    A method of manufacturing a lens 10 according to the invention will now be described.
    The lens 10 is advantageously manufactured by molding using a mold. The mold has an inner face for forming the front face of the lens. This internal face of the mold has microstructures of complementary configuration to that of the microstructures that the front face of the lens is intended to present.
    The microstructures of the mold are, for example, formed in a known manner. For example, for an irregular distribution of the microstmctures, they are formed by sanding, or by electrochemical erosion. For a regular distribution of the microstmctures, the mold microstmctures are for example formed by machining the mold at high speed.
    In practice, in the face of this mold, the microstructures are arranged in such a way as to define complementary zones of the zones Z1 to Z3 and of the region 22, and which conform the lens material or a precursor thereof so as to define these areas.
    Once the lens demolded, it is for example subjected to possible optional treatments known.
    The lens according to the invention has several advantages.
    Indeed, it makes it possible to reduce the risk that the presence of the cut-off C is likely to generate for the driver in particular in the road function, and in particular to reduce the discomfort produced by this cut at the lateral ends of the generated beam, which are the most likely to pose a problem.
    In addition, this result is obtained in a simple manner in that it does not require profound changes in the lighting device, including its geometric configuration.
    In the above description, the device 2 has been described as comprising a housing 4 having reflective surfaces configured to reflect the light emitted by the sources towards the lens 10.
    In an alternative configuration, the device 2 is devoid of housing 4 whose inner faces are reflective.
    The device 2 then comprises a support on which the sources 6 are arranged. The support is for example arranged behind the element 8 and orthogonal to the optical axis of the lens. The sources 6i and 62 are arranged above and below the optical axis.
    The device further comprises, for each source, an optical shaping element arranged opposite the corresponding source and configured to focus the light emitted by the corresponding source on the folder of the element 8.
    The relative configuration of the folder and the lens is, for example, unchanged.
    权利要求:
    Claims (16)
    [1" id="c-fr-0001]
    A lens for a motor vehicle lighting device, the lens comprising a rear face (16) intended to be oriented towards a light source (6) of the lighting device, and a front face (18) for to be oriented towards a roadway to be illuminated, the lens (10) having a vertical median plane (P) intended to be substantially orthogonal to the roadway, the front face having a first diffusion zone (Z1) having adapted microstructures (20) for diffusing the light emitted by the light source, the first diffusion zone (Zl) extending along the median plane (P), the front face further comprising at least two second diffusion zones (Z2i, Z22) each presenting microstructures (20) adapted to diffuse the light emitted by the light source, the two second scattering zones lying on either side of the vertical median plane, the microstructures of the second s diffusion zones (Z2 ,, Z22) having a depth strictly greater than the depth of the microstructures (20) of the first diffusion zone (Zl).
    [2" id="c-fr-0002]
    2. The lens of claim 1, wherein the ratio between the depth of the microstructures of the second diffusion zones (Z2i, Z22) and the depth of the microstructures of the first diffusion zone (Zl) is between 1.5 and 3.
    [3" id="c-fr-0003]
    3. A lens according to claim 1 or 2, wherein the depth of the microstructures of the first diffusion zone (Zl) is between 1.5 pm and 4 pm.
    [4" id="c-fr-0004]
    4. A lens according to any one of the preceding claims, wherein the depth of the microstructures of the second diffusion zones (Z2i, Z22) is between 3 pm and 8 pm.
    [5" id="c-fr-0005]
    5. Lens according to any one of the preceding claims, wherein the depth of the microstructures of a second diffusion zone is strictly greater than the depth of the microstructures of the other second diffusion zone.
    [6" id="c-fr-0006]
    6. A lens according to any one of the preceding claims, wherein, within a given diffusion zone, the microstructures all have substantially the same depth.
    [7" id="c-fr-0007]
    7. A lens according to any one of the preceding claims, wherein the microstructures have a maximum radius of between 0.5 mm and 1 mm.
    [8" id="c-fr-0008]
    8. Lens according to any one of the preceding claims, wherein the first diffusion zone (Zl) has a general shape of strip extending along the vertical median plane.
    [9" id="c-fr-0009]
    9. Lens according to one of claims 1-7, wherein the first diffusion zone has a generally circular shape.
    [10" id="c-fr-0010]
    A lens according to any one of the preceding claims, wherein the first diffusion zone has a width of between 20% and 60% of a diameter of the lens.
    [11" id="c-fr-0011]
    11. A lens according to any one of the preceding claims, wherein the front face comprises a third diffusion zone (Z3) extending substantially orthogonal to the median plane (P), the third diffusion zone extending from a lower end of the first and second diffusion zones towards one end of the front face (18) of the lens.
    [12" id="c-fr-0012]
    12. The lens according to claim 11, wherein the third diffusion zone (Z3) has microstructures (20) adapted to diffuse the light emitted by the light source, the microstructures of the third zone having a depth substantially identical to the depth microstructures of the first diffusion zone (Zl).
    [13" id="c-fr-0013]
    A lens according to claim 11 or 12, wherein the first and third scattering zones (Z1, Z3) together define on the front face (18) of the lens a related diffusion region.
    [14" id="c-fr-0014]
    14. A lens according to any one of the preceding claims, wherein the front face has, at a lower end, a region (22) shaped to deflect a portion of the light from the light source for illumination. of gantry points.
    [15" id="c-fr-0015]
    15. A lighting device, especially a motor vehicle, characterized in that it comprises at least one light source (6) configured to emit light and a lens (10) according to any preceding claim arranged for receiving at least a portion of the light emitted by the light source (6).
    [16" id="c-fr-0016]
    16. Lighting device according to claim 15, comprising a first light source (6i) associated with a low beam function of the lighting device, a second light source (62) associated with a high beam function. the lighting device, and a cutoff element (8) adapted to generate a cutoff line (C) within a light beam emitted by the lighting device.
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    FR2867257A1|2005-09-09|Lighting and/or signalling device for motor vehicle, has dioptric unit whose rear side is divided into angular sectors, where each sector is limited towards back side by elementary rotational surface
    FR2950672A1|2011-04-01|OPTICAL MODULE WITH FOLDER FORMED BY A DIOPTER TRANSPARENT MATERIAL / AIR
    FR2643863A1|1990-09-07|UNIFORM APPEARANCE SIGNALING LIGHT, IN PARTICULAR FOR A MOTOR VEHICLE
    FR3079597A1|2019-10-04|OPTICAL MODULE FOR MOTOR VEHICLE
    FR2777976A1|1999-10-29|VARIABLE BEAM PROJECTOR, PARTICULARLY FOR VEHICLES, AND ASSEMBLY OF PROJECTORS OF THIS TYPE
    FR2918441A1|2009-01-09|VEHICLE PROJECTOR
    FR2995061A1|2014-03-07|LUMINOUS DEVICE, IN PARTICULAR LIGHTING AND / OR SIGNALING DEVICE FOR A MOTOR VEHICLE
    同族专利:
    公开号 | 公开日
    EP3214364A1|2017-09-06|
    CN107152648B|2021-03-09|
    FR3048485B1|2019-04-05|
    US10190741B2|2019-01-29|
    US20170254496A1|2017-09-07|
    CN107152648A|2017-09-12|
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    法律状态:
    2017-03-31| PLFP| Fee payment|Year of fee payment: 2 |
    2017-09-08| PLSC| Publication of the preliminary search report|Effective date: 20170908 |
    2018-03-29| PLFP| Fee payment|Year of fee payment: 3 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 5 |
    2021-03-30| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1651753A|FR3048485B1|2016-03-02|2016-03-02|IMPROVED LENS FOR LIGHTING DEVICE OF MOTOR VEHICLE|
    FR1651753|2016-03-02|FR1651753A| FR3048485B1|2016-03-02|2016-03-02|IMPROVED LENS FOR LIGHTING DEVICE OF MOTOR VEHICLE|
    US15/446,529| US10190741B2|2016-03-02|2017-03-01|Lens for lighting device for motor vehicles|
    EP17158768.6A| EP3214364A1|2016-03-02|2017-03-01|Improved lens for a lighting device of a motor vehicle|
    CN201710122358.5A| CN107152648B|2016-03-02|2017-03-02|Improved lens for a lighting device of a motor vehicle|
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