• 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 an interior lighting system (100) of a vehicle comprising two optical modules (1, 1 '), each optical module (1, 1') comprising a plurality of light sources (2, 2 '). selectively activatable, a primary optical element (3, 3 ') having primary members (4, 4') respectively arranged opposite one of the sources (2, 2 ') for collecting the rays emitted by the corresponding source, the primary optical element (3, 3 ') being configured to form an elementary beam (7, 7') depending on the emitted rays, and a secondary optical element (6, 6 ') for the projection of the elementary beam (7, 7 ') in an area of the cockpit. According to the invention, the optical modules (1, 1 ') are configured so that the two elementary beams (7, 7') projected overlap at least partially in said zone of the passenger compartment.
    公开号:FR3079473A1
    申请号:FR1852820
    申请日:2018-03-30
    公开日:2019-10-04
    发明作者:Thierry Fleurence；Nicolas Boiroux；Kaoutar EZZOUAQ；Nirina Rasoldier；Jingjing Xue；Robert Arnaud
    申请人:Valeo Vision SA；
    IPC主号:
    专利说明:

    INTERIOR LIGHTING SYSTEM FOR A MOTOR VEHICLE
    The present invention relates to an interior lighting system of a motor vehicle capable of projecting pixelated light beams forming a pixelated image projection assembly in an area of the passenger compartment.
    Current interior lighting devices integrated into the interior of a motor vehicle have limited functionality. In general, interior lighting devices are limited to lamps integrated in the ceiling light that can act as reading lights as well as other light sources that can create mood lighting, in particular to highlight areas of the cockpit.
    The integration of interior lighting devices into the overhead light requires taking into account the dimensions of congestion in the passenger compartment of the vehicle, so that the development of new functionalities allowing optimized interior lighting is limited.
    More generally, in the field of front lighting of motor vehicles, manufacturers may have to propose a matrix lighting function to perform, on a road scene, an adaptive lighting function called "ADB" or "Adaptive Driving Beam" in English. In known manner, such a lighting and / or signaling device comprises at least one optical module intended to emit longitudinally towards the front of the vehicle a segmented final light beam, composed of a plurality of contiguous elementary beams. Such a module generally comprises a matrix of primary light sources, a plurality of light guides and a projection optic. Each source is associated with a light guide intended to conform the rays emitted into a narrower light brush forming a pixel, generally rectangular or square. By individually and selectively controlling the light sources, it is possible to modulate the elementary beam projected forward which represents an image of the matrix of elementary light sources, and in particular to make dark areas appear in the final beam.
    In another known arrangement, the optical modules as previously described can be associated with reflection means consisting of at least one output reflector to generate indirect imagery, for example, at least a plane, concave or convex mirror or a micro-mirror ray deflection matrix. Such a reflector is capable of receiving and reflecting at least one light beam before it leaves, the light beam being emitted and shaped by a matrix of light sources associated with light guides and then concentrated, in a first direction, by an optical system. additional projection lens type. The reflector is used to deflect, relative to the first direction, the light beam in a second direction which is oriented towards the glazed exit surface of the lighting and / or signaling device.
    Due to their complexity and their bulk, the lighting modules of the prior art are difficult to integrate into the passenger compartment of a vehicle for an interior lighting application.
    The invention is part of this context and aims to improve the definition of the interior light beams of a motor vehicle while making it possible to diversify the images projected into the passenger compartment. To this end, the invention provides an interior lighting system using direct imagery which emits an easily modifiable pixelated light beam. By a simplified and flexible arrangement and a reduced bulk, compatible with the limited space of a passenger compartment, the lighting system according to the invention has the advantage of being able to multiply the interior lighting configurations while ensuring a higher efficiency. .
    The subject of the invention is a vehicle interior lighting system comprising two optical modules, each optical module comprising a plurality of selectively activatable light sources, a primary optical element comprising primary members respectively arranged opposite one of the sources for collecting the rays emitted by the corresponding source, the primary optical element being configured to form an elementary beam as a function of the rays emitted, and a secondary optical element for projecting the elementary beam into an area of the passenger compartment.
    According to a characteristic of the invention, the optical modules are configured so that the two projected elementary beams overlap at least partially in said area of the passenger compartment.
    According to a characteristic of the invention, the optical modules are arranged so as to operate in direct imaging, with a direct stacking of the light sources and of the primary organs.
    According to a first embodiment of the invention, the optical modules are configured so that the two projected elementary beams which overlap at least partially have complementary shapes, the shape of a first elementary beam being the negative of the other elementary beam when all the light sources are activated.
    According to a second embodiment of the invention, the optical modules are configured so that the two projected elementary beams which overlap at least partially have complementary shapes in that, when all the light sources are activated, the areas illuminated by a first elementary beam are superimposed on the dark zones of the other elementary beam, at least one illuminated zone of the first elementary beam extending further so as to partially cover at least one illuminated zone of the other neighboring elementary beam of the dark zone of this elementary beam which the at least one illuminated zone of the first elementary beam covers.
    According to a series of characteristics of the interior lighting system which can be taken alone or in combination, it can be provided that:
    the optical modules respectively have an optical axis and are arranged so that their optical axes are not parallel to each other and converge towards one another,
    the optical axes of the optical modules are inclined relative to each other by an angle of value between 0.5 0 and 3 0 ,
    the optical axes of the optical modules are inclined relative to a vertical axis of the vehicle by an angle value of between 5 0 and 15 0 ,
    - Each optical module has a space requirement, in a longitudinal direction parallel to the optical axis of this optical module, between 15 and 25 millimeters.
    According to another series of characteristics of the interior lighting system which can be taken alone or in combination, it can be provided that:
    - the primary members and the primary optical element of at least one optical module form a single piece,
    - the primary optical elements of the two optical modules form a single piece,
    - The secondary optical elements of the two optical modules form a single piece.
    According to another characteristic of the interior lighting system, provision may be made for the primary members of a first optical module to be arranged to form a first matrix network and the primary members of a second optical module to be arranged to form a second matrix network , the first and second matrix networks being of complementary forms.
    According to different characteristics of the interior lighting system according to the invention taken alone or in combination, it can be provided that:
    - the light sources are light-emitting diodes, which may be able to be mounted on the surface of a printed circuit board,
    the primary and secondary optical elements are configured to form in the elementary beam a trapezoidal image of each of the outputs of the primary members,
    - a plurality of primary organs has a square section,
    - a plurality of primary organs has a round section.
    Other characteristics and advantages of the invention will appear more clearly on reading the detailed description of the embodiments of the invention, given below by way of illustrative and nonlimiting examples and based on the attached figures. , in which the interior lighting system of a motor vehicle capable of emitting a pixelated light beam has been illustrated and among which:
    - Figure i illustrates a possibility of integration of the interior lighting system according to the invention in the passenger compartment of a motor vehicle;
    - Figure 2 is a perspective view of the interior lighting system of the invention according to a first arrangement of the optical modules making up this interior lighting system;
    - Figure 3 is a rear perspective view of the interior lighting system of the invention according to a second arrangement of the optical modules making up this interior lighting system, and making visible the elementary light beams projected by each of these modules and brought to overlap;
    - Figure 4 is a schematic representation of the interior lighting system of the invention, seen from the side to make more particularly visible the inclination relative to one another of the optical elements making up the two optical modules;
    - And Figure 5 is a schematic view of the shape complementarity of two elementary light beams projected at the output of the optical modules making up the interior lighting system, and which according to the invention are at least partially superimposed to give a pixelated image.
    If the figures show the invention in detail for its implementation, they can of course be used to better define the invention if necessary. Similarly, it is recalled that, for all of the figures, the same elements are designated by the same references. It will also be understood that the embodiments of the invention illustrated by the figures are given by way of non-limiting example. Consequently, other configurations of the interior lighting system according to the invention can be achieved, in particular by variations in the arrangement and sizing of the primary elementary light sources, of the primary optical element in particular of the primary members, as well as the secondary optical element.
    In the following description, with particular reference to the trihedra L, V, T present in FIGS. 2 to 4, the orientations will be adopted without limitation:
    - longitudinal L, defined by a longitudinal axis of elongation of the interior lighting system of the invention which makes it possible to define a rear-to-front arrangement of the elements which compose it, in particular of a plurality of light sources , a primary optical element and a secondary optical element;
    - vertical V, with reference to a vertical axis perpendicular to the ground on which the vehicle is traveling; and
    - transverse T, with reference to an axis perpendicular to the longitudinal and vertical axes described above in a direction substantially parallel to the ground on which the vehicle is traveling.
    FIG. I illustrates the installation of an optical system 200 in a passenger compartment of a motor vehicle to form an interior lighting system 100 which is configured to illuminate the passenger compartment in a reading-type application and arranged for this purpose, for example , in the ceiling light 50 front center of the vehicle. In this configuration, the interior lighting system 100 is configured to project elementary light beams overlapping at least partially, as will be described in more detail below, to form at least one lighting area 51 that can extend over a surface, for example a glazed surface of the vehicle, or a volume which may include, for example, the dashboard and the seat of the front seats of the vehicle.
    It is understood that any other installation of the interior lighting system 100 in the passenger compartment is possible, for example in a central rear ceiling lamp, laterally above the doors, for example at the level of the comfort handles, or even in a console front and / or rear panel.
    As will be described, the interior lighting system 100 according to the invention comprises light sources whose selective activation makes it possible to generate elementary beams which can vary over time, by their periodicity, their intensities and / or their colors so as to form, in at least one area of the passenger compartment, at least one clear pixelated static and / or dynamic image such as, for example, a background image, a logo or even a pictogram.
    FIG. 2 illustrates the optical system 200, capable of forming here an interior lighting system 100, in which two optical modules 1, 1 ’are arranged side by side, here in a transverse direction. According to the invention, each optical module 1, 1 ′ comprises, from rear to front along a longitudinal axis, a plurality of light sources 2, 2 ′, a primary optical element 3, 3 ′ and a secondary optical element 6, 6 'configured to allow the projection of an elementary beam 7, 7' (visible in FIG. 3) in an area of the passenger compartment.
    The primary optical element 3, 3 ’has a rear part in which primary organs 4, 4’ are arranged respectively opposite the light sources 2, 2 ’and a front part which forms a lens 5, 5’.
    The light sources 2, 2 ’are generally formed by light-emitting diodes also called" LEDs "mounted on the surface of a printed circuit board, not shown here, and which can be controlled individually. Due to its application to a passenger compartment of a motor vehicle, the space dedicated to the installation of the interior lighting system is limited. For this, it is necessary to use light sources of small dimensions, which can for example be light-emitting diodes of the SMD type, English acronym for “Surface Mounted Device”, or else COB type diodes, English acronym for “ Chip On Board ”.
    The primary optical element 3, 3 ’, arranged in front of the light sources 2, 2’ so as to be on the path of the rays emitted by these light sources, is capable of modifying the distribution of these emitted rays. To this end and as illustrated, the primary members 4, 4 ′ formed in the rear part of the primary optical element can respectively take the form of a light guide, all of these light guides thus formed constituting a pixel optical system.
    The light guides extend generally longitudinally, having at their opposite longitudinal ends an entry face of the light rays emitted by the light sources 2, 2 ’and an exit face of these light rays. The light guides can have a square, rectangular and / or round cross-section, it being understood that the shape of the light guides can be identical or different within the same optical module 1, 1 ’. Each light guide is thus coupled to a light-emitting diode so that the major part of the light rays emitted by a light-emitting diode enters the light guide which is dedicated to it by an entry face of this guide and are guided up to 'to the corresponding exit face from which the rays emerge shaped as a narrower light brush forming a square or rectangular or even round pixel.
    The lens 5, 5 forming the front part of the primary optical element 3, 3 ’comprises an entry plane diopter 10, 10’ and an exit face of substantially hemispherical profile. Each lens 5, 5 ’of a primary optical element 3, 3’ can thus take the form of a convex planar converging lens. The primary members 4, 4 ′, each formed by a light guide, are arranged projecting from the entry plane diopter 10, 10 ′ so that the exit face of each guide is arranged in the plane of the planing diopter. Entrance.
    The primary members 4, 4 ’can be produced separately from the primary optical element 3, 3’ forming a lens 5, 5 ’. However, in a preferred embodiment of the invention, the primary members 4, 4 ′ form, with the primary optical element 3, 3 ’of at least one 1.1’ optical module, a single piece. In the example illustrated, each 1.1 ′ module comprises a primary optical element 3, 3 ′ and primary organs 4, 4 ′ made in one piece, and the two primary optical elements 3, 3 ′, and the primary organs 4, 4 'integrated, can form a single and common part for the two 1,1' optical modules.
    In this way, although made distinct from each other by the specific arrangement of the light guides that they manage and the light beams that the activation of their own light sources can generate, the primary optical elements 3, 3 'of the optical modules 1, 1' can together form a single piece 30. In this single piece, the primary optical elements 3, 3 'respectively form first and second optical zones 31, 32 separated one from the other by an optically neutral connection zone 33 which is little or not crossed by the rays emitted by the light sources 2, 2 '.
    More particularly, FIG. 2 makes this substantially flat connection zone 33, which separates the two optical zones 31, 32, particularly visible, taking the form of a spherical lens as defined above.
    The configuration of the interior lighting system 100, and more particularly the position of the primary optical element 3, 3 'which forms the lens 5, 5' and of the secondary optical element 6, 6 'of projection, is such that the exit faces of the light guides formed in the plane of the entry plane diopter 10, 10 ′ are arranged substantially in the focal plane object of the secondary optical element 6, 6 ′ of projection.
    The secondary optical element 6, 6 'of projection here forms an additional lens, preferably biconvex, and is capable of concentrating at the output an elementary beam 7, 7' of adaptive light along an optical axis 8, 8 '(visible in the figure 3) determined as a function of the arrangement and orientation of this secondary optical element and of all of the optical components of the corresponding optical module, with a view to projecting an image of the light sources 2, 2 ′ longitudinally forward .
    Advantageously, the primary optical elements 3, 3 ’and secondary 6, 6’ are configured to form in the elementary beam 7,7 ’a trapezoidal image of each of the outputs of the light guides forming the primary organs 4, 4’.
    In the example illustrated in FIG. 2, and in accordance with what has been described for the primary optical elements, the secondary optical elements 6, 6 ′ of the two optical modules 1, 1 ′ form a single piece, it being understood that the additional lenses of the secondary optical elements 6, 6 ′ may have optical configurations and / or inclinations distinct from one another.
    Due to the space constraints previously described, the longitudinal dimensions of the interior lighting system which comprises the two optical modules 1, 1 ′ must be approximately of the order of 20 mm.
    To allow the integration of all the components of the interior lighting system in this space, the optical modules i, i 'are arranged so as to operate in direct imaging, with a direct stacking along the longitudinal axis of the light sources. 2, 2 ', primary members 4, 4', primary optical elements 3, 3 'and secondary optical elements 6, 6'.
    In a preferred implementation of the interior lighting system 100, each optical module 1, 1 ′ has, in a longitudinal direction parallel to the optical axis 8, 8 ’, a space between 15 and 25 mm.
    FIG. 3 illustrates an interior lighting system 100 according to the invention which includes a particular arrangement of the optical modules composing it. More particularly, the two optical modules 1, 1 ’are here superimposed one on the other in a vertical direction. This arrangement does not in any way modify the number and the nature of the components of the 1.1 ′ optical modules which, as previously described, each comprise, from the rear to the front, a plurality of light sources 2, 2 ′, an element primary optic 3, 3 'forming a lens 5, 5' and associated with primary members 4, 4 'respectively opposite one of the light sources and a secondary optical element 6, 6' forming an additional lens for projecting a elementary beam 7, 7 ′ in a zone of the passenger compartment.
    In this FIG. 3, in accordance with what has been described above in relation to FIG. 2, the primary optical elements 3, 3 ′ of the optical modules are formed in one and the same part, as are the secondary optical elements 6 6 ′, and this FIG. 3 illustrates the fact that the optical modules can be arranged in any orientation since, as will be described below, the primary and secondary optical elements of each optical module are configured to that the elementary light beams that they participate in projecting overlap at least partially.
    Furthermore, FIG. 3 allows a representation of the optical system with a different angle of view than that of FIG. 2, which makes it possible to better see one of the differences between one and the other of the modules, namely the arrangement. primary members projecting from the entry face of the lens forming part of the primary optical element.
    Each optical module comprises primary members, or light guides, respectively facing a light source and arranged in three rows.
    In the first optical module 1, eight primary members are arranged in three rows, with three primary members in the first row, two primary members in the second row, and again three primary members in the third row. The light guides arranged in the same row are spaced from each other, with a transverse spacing, that is to say in the direction of the series of guides on the row, substantially equal to the transverse dimension of a guide of light at the level of the entry plane diopter of the primary optical element. And the light guides are offset transversely from one row to the other so as to have a staggered arrangement, with a transverse offset of one line in two.
    In the second optical module 1 ’, seven primary members are arranged in three rows, with two primary members in the first row, three primary members in the second row, and again two primary members in the third row. In accordance with what has been described for the first optical module, the light guides arranged in the same row are spaced from one another, with a transverse spacing, that is to say in the direction of the series of guides on the row, substantially equal to the transverse dimension of a light guide at the level of the entry plane diopter of the primary optical element. And the light guides are offset transversely from one row to the other so as to have a staggered arrangement, with a transverse offset of one line in two.
    The orientation of FIG. 3 also makes it possible to schematically illustrate the elementary light beams projected, it being understood that what will be mentioned subsequently in relation to the arrangement of the optical modules of FIG. 3 is valid for the other arrangements and in particular the one illustrated in figure 2.
    There is shown in Figure 3, for each of the optical modules 1, 1 ', the path of a ray emitted by a light source 2, 2' and caused to pass successively through a primary member 4, 4 ', the front part of the associated primary optical element 3, 3 'then the associated secondary optical element 6, 6'.
    According to the invention, the optical modules 1, 1 'are configured so that the two elementary light beams 7, 7' projected at the output of the secondary optical elements 6, 6 'overlap at least partially to give, in an area of the passenger compartment, a pixelated image 9 illustrated by FIG. 5. To achieve the superimposition of the elementary light beams 7, 7 'projected, the optical modules 1, 1' are arranged so that their optical axes 8, 8 'are not not parallel to each other and converge towards each other. To this end, the additional lenses of the secondary optical elements 6, 6 ', and / or the lenses 5, 5' forming the front part of the primary optical elements 3, 3 ', and / or the primary optical elements as a whole, can have different optical configurations and / or inclinations from one another in order to ensure a deflection of at least one elementary light beam 7, 7 'and achieve convergence of the two elementary light beams 7, 7' towards each other.
    In the illustrated embodiment, a ray emitted by a first light source 2 of the first optical module 1 propagates by successive reflections in the first primary member 4 arranged opposite the first light source, leaves the first primary optical element 3 by the output diopter of the first lens 5 in a first direction 7a, in the direction of the first secondary optical element 6. This first secondary optical element 6 forming additional lens ensures, by its shape and its arrangement in
    Μ in the passenger compartment, the deviation of the radius in a second direction 7b, inclined relative to the first direction 7a. All of the rays emitted by the first light sources 2 associated with the first optical module 1 thus form a first elementary light beam 7 projected into the passenger compartment.
    Similarly, a ray emitted by a second light source 2 'from the second optical module 1' propagates by successive reflections in the second primary member 4 'arranged opposite the second light source, leaves the second primary optical element 3' by the output diopter of the second lens 5 'in a third direction 7'a, in the direction of the second secondary optical element 6'. This second secondary optical element 6 'forming an additional lens ensures, by its shape and its arrangement in the passenger compartment, the deviation of the radius in a fourth direction 7’b, inclined relative to the third direction 7’a. All of the rays emitted by the second light sources 2 ’associated with the second optical module 1 thus form a second elementary light beam 7’ projected into the passenger compartment.
    The longitudinal axis of the optical system can be arbitrarily defined as merging with the optical axis of the first optical module 1. The components of the first optical module 1 are arranged relative to each other so that the rays emitted by the first light sources allow a projection along this first optical axis on a determined area of the passenger compartment. At least one of the primary optical element or the secondary optical element of the second optical module has an inclination relative to the primary optical element, respectively the secondary optical element of the first optical module, so that the rays emitted by the second light sources of the second optical module, and therefore from a position offset transversely (FIG. 2) or vertically (FIG. 3) relative to the starting position taken by the first light sources of the first optical module, can result in a projection onto the same specific area of the passenger compartment.
    In other words, and as shown schematically in FIG. 4, this time giving a side view, the second primary optical element 3 'and / or the second secondary optical element 6' extend mainly in planes of extension P3 ', P6' inclined with respect to the extension planes P3, P6 in which the first primary optical element 3 'and / or the first secondary optical element 6' extend respectively. In FIG. 4, by way of nonlimiting example, the planes of extension of the primary optical elements 3, 3 ′ are inclined relative to each other by a first angle a and the planes of extension of the secondary optical elements 6, 6 'are inclined relative to each other by a second angle β, it being understood that the inclination illustrated here is accentuated to make it perceptible in the figure.
    It is understood that, in this embodiment, the second elementary beam 7 ′ of the second optical module 1 ′, deflected with respect to the optical axis 8 ′, converges towards the optical axis 8 and is superimposed on the elementary beam 7 of the optical module 1 to create a final pixelated image 9. In a preferred embodiment of the invention, the optical axes 8, 8 ′ of the optical modules 1, 1 ′ are inclined relative to each other of a value angle between 0.5 0 and 3 0 . In addition, the optical axes 8, 8 ′ of the optical modules 1, 1 ′ can be inclined relative to a vertical axis of the vehicle, substantially perpendicular to the main plane defined by the roof and / or the floor of said vehicle, by a value angle between 5 0 and 15 0 .
    As stated above, according to a characteristic of the invention, the primary optical elements of each of the optical modules form a single and same part. And it can be the same for the secondary optical elements of each of the optical modules. It is understood that such a one-piece arrangement of the primary optical elements makes it possible to facilitate the positioning of these primary optical elements in the optical system relative to the other components. The mounting operation is simplified and made less costly, but it should be noted that it above all makes it possible to ensure the correct positioning of the main extension plane of a primary optical element relative to the extension plane of the 'other. In this way, and in particular when the secondary optical elements of the two optical modules are also made in one piece, it is possible to ensure the correct superposition of the projected elementary light beams.
    FIG. 5 schematically illustrates the complementary form of the images of the two elementary beams 7, 7 'projected by the secondary optical elements 6, 6' at the output of the optical modules 1, 1 'and which overlap at least partially to create a final pixelated image 9 in an area of the vehicle interior.
    To this end, the light sources 2, 2 ’associated with the light guides forming the primary members 4, 4’ are arranged, respectively, in first and second matrix arrays, distinct from one another but of complementary shapes. In other words, the first light guides associated with the first optical module are arranged in a matrix of X rows and Y columns, here three rows and five columns, in which the first light guides and the first associated light sources take first locations of the matrix X, Y, and the second light guides associated with the second optical module are arranged in the same matrix of X rows and Y columns, here three rows and five columns in which the second light guides and the second sources associated light sources take second locations of the matrix distinct from the first corresponding locations. We can thus define the matrix of X rows and Y columns as a checkerboard, with the arrangement of the first guides of the first optical module which corresponds to an occupation of the white boxes and the arrangement of the second guides of the second optical module which corresponds to a occupation of additional black boxes. It is understood that a first light guide, arranged on the first matrix network and whose location is defined by a given row and column, corresponds to an empty location on the second matrix network.
    It follows from the above that, when all the light sources 2, 2 ′ are activated, the shape of the first elementary beam 7 which results from the arrangement of the first matrix array of light sources 2 of the first optical module i is the negative of the shape of the second elementary beam 7 ′ resulting from the arrangement of the second matrix array of light sources 2 ′ of the second optical module 1 ′.
    In the example illustrated and as shown in particular in FIG. 5, when all the first light sources 2 are on, the first elementary beam 7 at the output of the first optical module 1 has a checkerboard configuration which includes correspondingly lit areas the exit faces of the light guides of the primary members 4 and dark areas corresponding to the areas located between the exit faces. Similarly, when all the second light sources 2 ′ are on, the second elementary beam 7 ′ at the output of the second optical module 1 ′ has a checkerboard configuration complementary in negative to that emitted by the first elementary beam 7.
    As a result, at the outlet of the interior lighting system 100, in the area of the passenger compartment on which the two elementary light beams are projected which are superimposed, the illuminated areas of the first elementary beam 7 emitted by the first optical module 1 are superimposed on the dark areas of the second elementary beam 7 'emitted by the second optical module 1'. To prevent parasitic dark areas from remaining after superposition of the elementary beams 7, 7 ′ complementary or else to avoid any difference in contrast between the complementary illuminated areas, it is possible to extend the emission surface by at least one area illuminated by the first elementary beam 7 so that it partially covers at least one illuminated area of the second elementary beam 7 'adjacent to the dark area forming a negative of said illuminated area of the first elementary beam 7. By enlarging the surface emission of the illuminated areas, the final image 9 obtained by the superposition of the elementary beams 7, 7 ′ and projected into the passenger compartment is a complete, homogeneous and clear image.
    The optical system of the interior lighting system 100 according to the invention has the advantage of being flexible. Thus, in order to increase the lighting functions in the passenger compartment, it is possible to act on the configuration of the elementary beams 7, 7 ′ in order to diversify the final pixelated image 9, in particular according to the needs of the users. of the vehicle. To this end, provision may be made to combine a first matrix network of primary organs 4 of square sections of the first optical module 1 with a second matrix network of primary organs 4 'of round sections of the second optical module 1', or else provide primary organs of different section within the same matrix network.
    As a variant, provision can be made to act on the light sources 2, 2 ’, in particular by selective control of these. Indeed, the individual control of the light sources 2, 2 ′, in particular by switching on or off the light-emitting diodes, allows variations in shapes, light intensities or colors of the pixels of the elementary beams 7, 7 ′ and by consequence of the final pixelated image 9. This control does not require any modification of the optical system according to the invention and makes it possible to diversify the interior lighting functions by projecting into the passenger compartment, for example, a logo, a pictogram or an image high definition ambience.
    The foregoing description clearly explains how the invention makes it possible to achieve the objectives which it has set for itself, and in particular to propose a simplified and compact interior lighting system which comprises two optical modules capable of each forming an elementary beam. pixelated in order to obtain a pixelated image projected in at least one area of the passenger compartment. The interior lighting system according to the invention improves the definition of the projected image and increases the functionality of interior lighting for a motor vehicle.
    The invention cannot be limited to the embodiments specifically given in this document by way of nonlimiting examples, and extends in particular to all equivalent means and to any technically operative combination of these means. Thus, the features, variants and different embodiments of the invention can be associated with each other, in various combinations, as long as they are not incompatible or mutually exclusive. One can in particular imagine variants of the invention comprising only a selection of the characteristics described, since, in accordance with the invention, the interior lighting system comprises two optical modules configured so that the two projected elementary beams are superimposed at least partially io in an area of the passenger compartment of a motor vehicle.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    1. Interior lighting system (100) of a vehicle comprising two optical modules (1, 1 '), each optical module (1, 1') comprising a plurality of light sources (2, 2 ') which can be selectively activated, one primary optical element (3, 3 ') comprising primary members (4, 4') respectively arranged opposite one of the light sources (2, 2 ') to collect the rays emitted by the corresponding source, the optical element primary (3, 3 ') being configured to form an elementary beam (7, 7') function of the emitted rays, and a secondary optical element (6, 6 ') for the projection of the elementary beam (7, 7') in a cabin area, characterized in that the optical modules (1,1 ') are configured so that the two elementary beams (7, 7') projected at least partially overlap in said area of the cabin.
    [2" id="c-fr-0002]
    2. Interior lighting system (100) according to claim 1, characterized in that the optical modules (1, Γ) are arranged so as to operate in direct imaging, with a direct stacking of light sources (7, 7 ') and primary organs (4,4 ').
    [3" id="c-fr-0003]
    3. Interior lighting system (100) according to claim 1 or 2, characterized in that the optical modules (1, 1 ') are configured so that the two elementary beams (7, 7') projected which are at least partially superimposed have complementary shapes, the shape of a first elementary beam being the negative of the other elementary beam when all the light sources (2, 2 ') are activated.
    [4" id="c-fr-0004]
    4. Interior lighting system (100) according to claim 1 or 2, characterized in that the optical modules (1, Γ) are configured so that the two elementary beams (7, 7 ') projected which overlap at least partially have complementary shapes in that, when all the light sources (2, 2 ') are activated, the illuminated areas of a first elementary beam are superimposed on the dark areas of the other elementary beam, at least one area illuminated by the first elementary beam further extending so as to partially cover at least one illuminated zone of the other elementary beam adjacent to the dark zone of this elementary beam that the at least one illuminated zone of the first elementary beam covers.
    [5" id="c-fr-0005]
    5. Interior lighting system (100) according to any one of the preceding claims, characterized in that the optical modules (1, Γ) respectively have an optical axis (8, 8 ') and are arranged so that their axes optics (8, 8 ') are not parallel to each other.
    [6" id="c-fr-0006]
    6. Interior lighting system (100) according to claim 5, characterized in that the optical axes (8, 8 ') of the optical modules (1, Γ) are inclined relative to each other by value angle between 0.5 ° and 3 °.
    [7" id="c-fr-0007]
    7. Interior lighting system (100) according to claim 5, characterized in that the optical axes (8, 8 ') of the optical modules (1, 1) are inclined relative to a vertical axis of the vehicle by a value angle between 5 ° and 15 °.
    [8" id="c-fr-0008]
    8. Interior lighting system according to any one of the preceding claims, characterized in that the primary members (4, 4 ') and the primary optical element (3, 3') of at least one optical module (1 , Γ) form a single piece.
    [9" id="c-fr-0009]
    9. Interior lighting system (100) according to any one of the preceding claims, characterized in that the primary optical elements (3, 3 ') of the two optical modules (1, Γ) form a single piece.
    [10" id="c-fr-0010]
    10. Interior lighting system (100) according to any one of the preceding claims, characterized in that the primary members (4) of a first optical module (1) are arranged to form a first matrix network and the primary members (4 ') of a second optical module (Γ) are arranged to form a second matrix network, the first and second matrix networks being of complementary shapes.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3073185A1|2016-09-28|Lighting module for motor vehicle headlight and headlight provided with at least one such module
    FR3039880B1|2019-10-11|LIGHTING AND / OR SIGNALING DEVICE FOR MOTOR VEHICLE
    EP3210829A1|2017-08-30|Lighting system for motor vehicle passenger compartment
    EP2012056A1|2009-01-07|Luminous signalling device for an automobile
    EP3546291A1|2019-10-02|Interior lighting system for a motor vehicle
    FR3023600A1|2016-01-15|LUMINOUS MODULE OF A MOTOR VEHICLE
    EP1502814A1|2005-02-02|Vehicle headlight with dipped beam light and cornering light
    EP3267096B1|2020-09-30|Lighting and/or signalling device for a motor vehicle
    EP3350506A1|2018-07-25|Light-beam-projecting device comprising a digital screen and headlamp equipped with such a device
    EP3301347A1|2018-04-04|Lighting device for a motor vehicle comprising a light guide
    WO2018050594A1|2018-03-22|Optical system for a pixelized light beam
    FR3079474A1|2019-10-04|OPTICAL SYSTEM FOR MOTOR VEHICLE
    EP3381748A1|2018-10-03|Interior lighting module for a motor vehicle
    FR3039881A1|2017-02-10|LIGHTING AND / OR SIGNALING DEVICE FOR MOTOR VEHICLE
    FR3066251A1|2018-11-16|LUMINAIRE AND LIGHTING MODULE FOR A VEHICLE INTERIOR
    FR3065785A1|2018-11-02|PROJECTION LENS FOR MOTOR VEHICLE PROJECTOR
    FR3056691B1|2019-06-28|OPTICAL MODULE FOR A MOTOR VEHICLE PROJECTOR WITH ADAPTIVE LIGHTING FUNCTION, COMPRISING AN OPTICAL LIGHT BEAM REFLECTING SYSTEM
    FR3039882A1|2017-02-10|LIGHTING AND / OR SIGNALING DEVICE FOR MOTOR VEHICLE
    FR2912806A1|2008-08-22|Headlight e.g. turn signal lamp, for motor vehicle, has individual headlights co-operating for forming global light distribution, where additional optic of each individual headlight is associated with each LED of each individual headlight
    EP3511608A1|2019-07-17|Optical module for motor vehicle
    FR3038694A1|2017-01-13|CONFIGURED LIGHT DEVICE FOR TRANSMITTING A SEGMENTED LIGHT BEAM, IN PARTICULAR FOR A MOTOR VEHICLE, AND PROJECTOR PROVIDED WITH SUCH A DEVICE.
    FR3086770A1|2020-04-03|PROJECTION OPTICAL SYSTEM AND LIGHT MODULE FOR VEHICLE
    EP3054209B1|2019-10-23|Lighting device for a motor vehicle
    WO2020126388A1|2020-06-25|Device for lighting the passenger compartment of a motor vehicle, the device being capable of projecting a pixelised light beam
    FR3086032A1|2020-03-20|LIGHTING SYSTEM FOR VEHICLE
    同族专利:
    公开号 | 公开日
    US10696219B2|2020-06-30|
    FR3079473B1|2020-10-02|
    US20190299851A1|2019-10-03|
    EP3546291A1|2019-10-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP2357399A1|2010-02-16|2011-08-17|Koito Manufacturing Co., Ltd.|Optical unit|
    EP2607164A1|2011-12-19|2013-06-26|Valeo Vision|Lighting module generating interleaved illuminated bands|
    DE102015115579A1|2015-09-16|2017-03-16|Hella Kgaa Hueck & Co.|Lighting device for the interior of a vehicle|
    EP3208530A1|2016-02-22|2017-08-23|Valeo Vision|Device for projecting light beams provided with light source arrays, lighting module and vehicle headlamp provided with such a device|
    EP3210829A1|2016-02-24|2017-08-30|Valeo Vision|Lighting system for motor vehicle passenger compartment|
    US20180087732A1|2016-09-29|2018-03-29|Valeo Vision|Lighting device generating stripe segmented beam for a motor-vehicle headlamp|
    US4916658A|1987-12-18|1990-04-10|International Business Machines Corporation|Dynamic buffer control|
    US8553334B2|2011-11-16|2013-10-08|Delphi Technologies, Inc.|Heads-up display system utilizing controlled reflections from a dashboard surface|
    US10059175B2|2014-03-13|2018-08-28|Ford Global Technologies, Llc|Autonomous vehicle with automatic window shade|
    US10119676B2|2016-06-10|2018-11-06|Osram Gmbh|Lighting device, corresponding lamp and method|
    FR3056500B1|2016-09-28|2020-09-04|Valeo Vision|INTERIOR LIGHTING SYSTEM FOR AUTONOMOUS MOTOR VEHICLES|
    FR3056495B1|2016-09-28|2020-05-29|Valeo Vision|INTERIOR LIGHTING DEVICE FOR A MOTOR VEHICLE|FR3062096A1|2017-01-26|2018-07-27|Valeo Vision|DEVICE FOR MONITORING A MATRIX OF LIGHT SOURCES FOR THE INTERIOR LIGHTING OF THE CABIN OF A MOTOR VEHICLE|
    FR3079474B1|2018-03-30|2020-10-02|Valeo Vision|OPTICAL SYSTEM FOR MOTOR VEHICLES|
    法律状态:
    2019-03-29| PLFP| Fee payment|Year of fee payment: 2 |
    2019-10-04| PLSC| Search report ready|Effective date: 20191004 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 3 |
    2021-03-30| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1852820|2018-03-30|
    FR1852820A|FR3079473B1|2018-03-30|2018-03-30|INTERIOR LIGHTING SYSTEM FOR MOTOR VEHICLES|FR1852820A| FR3079473B1|2018-03-30|2018-03-30|INTERIOR LIGHTING SYSTEM FOR MOTOR VEHICLES|
    EP19164742.9A| EP3546291A1|2018-03-30|2019-03-22|Interior lighting system for a motor vehicle|
    US16/368,237| US10696219B2|2018-03-30|2019-03-28|Interior lighting system for a motor vehicle|
    [返回顶部]