EP3301351A1 - Integral mounting for luminous device with micro-mirror array - Google Patents

Integral mounting for luminous device with micro-mirror array Download PDF

Info

Publication number
EP3301351A1
EP3301351A1 EP17192239.6A EP17192239A EP3301351A1 EP 3301351 A1 EP3301351 A1 EP 3301351A1 EP 17192239 A EP17192239 A EP 17192239A EP 3301351 A1 EP3301351 A1 EP 3301351A1
Authority
EP
European Patent Office
Prior art keywords
support
optical
microsystem
light
shaping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP17192239.6A
Other languages
German (de)
French (fr)
Inventor
Joel LI
Sylvain CHANEZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP3301351A1 publication Critical patent/EP3301351A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/37—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to the field of lighting and light signaling, in particular for a motor vehicle. More particularly, the invention relates to a signaling light device capable of producing luminous pictograms by means of an electromechanical microsystem with a matrix of micro-mirrors.
  • the published patent document US 2015/0175054 A1 discloses a light device for a motor vehicle headlamp.
  • the device comprises a light source of the laser type, an electromechanical microsystem serving as a deflector of the laser light, a phosphor phosphor element able to convert the monochromatic light reflected by the deflector, and an optical device comprising several lenses receiving the white light from the phosphor element.
  • the deflector can be controlled so as to modulate the light image thus produced.
  • the device comprises a support for supporting these different elements.
  • the support consists of several parts assembled to each other, directly or indirectly as for example via the housing of the device or the projector. Such an assembly, however, results in forming tolerance chains decreasing the relative positioning accuracy of the various elements.
  • the deflector is disposed on the inner face of a wall of the support, whereas this type component is usually fixed on a printed circuit board, such a platen being potentially bulky, especially when many electronic components are needed for the control of the deflector.
  • the invention aims to overcome at least one of the disadvantages of the state of the art mentioned above. More particularly, the object of the invention is to propose a solution ensuring precise positioning of the optical components of a light device comprising an electromechanical microsystem provided with one or more mirrors.
  • the subject of the invention is a luminous module support, in particular for a motor vehicle, comprising: an area for receiving at least one light source; a reception zone of an optical device for shaping the light emitted by the light source (s); a reception zone of an electromechanical microsystem with at least one mirror capable of receiving the rays coming from the optical shaping device; and a reception zone of at least one projection optical device receiving the rays reflected by the mirror (s) of the electromechanical microsystem; remarkable in that the support forms a cavity with an opening and comprises an outer surface around said opening, said surface forming the receiving zone of the microsystem.
  • the support comprises an integral body, preferably made of aluminum, said body forming the reception zones of the light source or sources, the optical shaping device and the optical device of FIG. projection.
  • the support comprises a plate adapted to be fixed to the body in order to partially close the cavity and comprising the outer surface forming the receiving zone of the microsystem.
  • the cavity is covered with an antireflection coating, and / or absorbent, preferably black.
  • the cavity is delimited by the receiving zone of the optical shaping device and the receiving zone of the projection optical device.
  • At least one, preferably each, of the reception zones of the optical devices comprises an orifice made in the support and a shoulder around said orifice.
  • the device comprises, within the cavity, a cantilevered tongue with an orifice intended to be traversed by the light reflected by the microsystem towards the projection optical device.
  • the invention also relates to a light device, in particular for a motor vehicle, comprising: a support; at least one light source disposed on the support; an optical device for shaping the light emitted by the light source or sources, said device being disposed on the support; a microsystem electromechanical with at least one mirror adapted to receive the rays from the optical shaping device, said microsystem being disposed on the support; and an optical projection device adapted to receive the light reflected by the mirror (s) of the electromechanical microsystem, said device being disposed on the support; remarkable in that the support is in accordance with the invention.
  • the light source or sources, the optical shaping device and the microsystem form a first optical axis
  • the said microsystem and the optical projection device form a second optical axis, the angle between said optical axes being between 40 ° and 65 °, preferably between 45 ° and 60 °.
  • the light source (s) are of the electroluminescence diode type on a plate arranged on a radiator fixed on the reception zone of said light source (s).
  • the light source (s), of the electroluminescence diode type are arranged via a base directly on the radiator fixed on the reception zone of said light source (s). .
  • the optical shaping device comprises a biconvex lens and / or the projection device comprises a biconvex lens and a biconcave lens.
  • the or each lens of the optical device or devices is held in place by a flange, fixed for example by screwing, gluing, soldering, crimping, pegging, by means of ankle or rivets, or any other means of attachment, or by the combination of two or more of these means.
  • the optical shaping device has a diameter greater than twice, preferably three times, that of the optical projection device.
  • the microsystem is on a printed circuit board, said plate being fixed to the support so as to press said microsystem against the reception zone of said microsystem.
  • the light device is a signal rear light capable of forming pictograms in the light beam produced, said pictograms being a function of a programming of the microsystem.
  • the measurements of the invention are interesting in that they make it possible to ensure exact positioning of the various components, including the electromechanical microsystem while it is on a printed circuit board.
  • the figure 1 is a perspective representation of a light device 2 according to the invention.
  • the light device 2 is in this case a light signaling device for a motor vehicle. It comprises, essentially a support 4, optical components disposed on the support 4 and a printed circuit board 6 with electronic components and an electromechanical optical microsystem 8.
  • the latter comprises a matrix of micro-mirrors adapted to be pivotally controlled by individual way.
  • Such a microsystem is commonly called a micro-mirror array or DMD (acronym for "Digital Micromirror Device”).
  • DMD digital Micromirror Device
  • Each mirror can take two positions: it can tilt from 10 to 15 ° along the same axis so as to reflect the light either towards a diffusion lens or towards an absorbing surface. They say he switched "on” or “off” this regime is therefore binary.
  • Such a microsystem is in itself well known to those skilled in the art.
  • the support 4 of the light device 2 comprises a body 10 on which is mounted a radiator 12.
  • the latter comprises an extended portion 12.1 receiving a plate 14 with one or more light sources 16, for example of the electroluminescence diode type.
  • the radiator 12 also includes fins 12.2 extending substantially parallel to each other from the extended portion 12.1.
  • the body 10 comprises a receiving zone 10.1 of the radiator 12 supporting the light source 16.
  • the body forms a recess 18 opposite the light source 16.
  • the bottom of this recess 18 forms a reception zone 10.2 of a shaping lens 20.
  • the latter forms an optical device for shaping the light emitted by the light source 16.
  • the body 10 forms a cavity (not visible at the figure 1 ) with an opening on the underside 10.3 of said body.
  • the electromechanical microsystem 8 is disposed vis-à-vis this opening to receive the light beam formed by the forming lens 20.
  • the body 10 also comprises a receiving zone 10.4 of an optical projection device 22.
  • the latter may comprise two lenses, only one of which is visible at the figure 1 .
  • the body 10 is advantageously in one piece, for example aluminum. It is the same for the radiator 12.
  • Each of these two elements can be achieved by machining or molding followed possibly by machining operations.
  • the figure 2 illustrates the optical components of the luminous device 2 of the figure 1 . These can be observed include a diaphragm 24 formed by a tongue 24.1 provided with a 24.2 orifice. The latter is disposed between the electromechanical microsystem 8 and the optical projection device 22. The role of the diaphragm is to cut the light rays which propagate too far from the nominal position to ensure a good definition, that is to say to say a good dive, from the image created by the system.
  • the projection optical device 22 comprises a first lens 22.1 of the convergent type and a second lens 22.2 of the divergent type. The second lens has a substantial thickness to the point of having a generally cylindrical shape.
  • the lens 20 for shaping the beam of light emitted by the light source 16 is a converging lens biconvex, configured to form a beam converging towards the optical microsystem and illuminating the optical surface of said system. It can be seen that the light source 16, the shaping lens 20 and the microsystem 8 are aligned along a first optical axis 26.1 and that said microsystem 8, the diaphragm 24 and the optical projection device 22 are aligned along a second axis optical 26.2.
  • the angle ⁇ formed by these two optical axes is advantageously between 40 ° and 70 °, preferably between 50 ° and 70 °, or between 40 ° and 65 °, or between 45 ° and 60 °.
  • the Figures 3 and 4 illustrate the luminous device of the figure 1 , without the plate and the electromechanical microsystem, seen from the underside of the support.
  • the support 4 further comprises an element 28 for partially closing the cavity 30 within the body 10.
  • This element 28 is formed by a plate 28.1 provided, at a peripheral portion, with means for attachment to the body 10, such as in particular holes for receiving fixing screws.
  • the plate 28.1 is also provided, at a central portion, with an opening 28.2. This is intended to allow light from the shaping lens 20 to meet the optical part of the electromechanical microsystem disposed opposite the opening 28.2 in question.
  • the element 28 may for this purpose include pads 28.3 forming bearing surfaces of the electromechanical microsystem. These pads 28.3, advantageously three in number to be isostatic, form surfaces comparable to point surfaces.
  • the electromechanical microsystem attached to the printed circuit board can then be fixed to the support so that the electromechanical microsystem is in pressure on the pads 28.3, thus ensuring contact and hence exact positioning in the direction perpendicular to the face 10.3 of the body 10.
  • Means for positioning the plate, in the plane of said plate may be provided, such as pins through holes in the plate and in the body 10 at the face 10.3.
  • the tab 24.1 forming the diaphragm comprises at its end opposite the orifice 24.2 two orifices 24.3 cooperating with positioning rods embedded in the body. It also includes a 24.4 central mounting hole relative to the positioning holes 24.3, said orifice receiving a fixing screw engaging with the body 10.
  • the body 10 comprises in the cavity 30 a recess forming a bearing surface of the tongue 24.1 , allowing it to pass under element 28 (according to the point of view of the figure 3 ).
  • the orifice 24.2 is located at the end of the tongue 24.1 which is situated on the side of the shaping lens 20, so as to avoid any obstruction of the light beam propagating from the lens 20 of the formatting towards the electromechanical microsystem.
  • the proximity between this beam and the edge of the tongue 24.1 at the orifice 24.2 is visible at the figure 2 .
  • the figure 4 corresponds to the figure 3 , where however the element 28 is absent.
  • the first lens 22.1 of the projection optical device 22 is held in place on the body 10 by means of a first flange 32.
  • This can have an open profile, in this case U, with the opening directed to the forming lens 20.
  • the shaping lens 20 and the first lens 22.1 are in fact very close to one another so that no space is available for a flange portion between the two lenses.
  • the first flange 32 is advantageously fixed to the body 10 by screws engaging in threaded holes made in said body.
  • the figure 5 is a sectional view of the light device of the figure 1 , the section being in a median longitudinal plane, that is to say in a plane generally parallel to the plane of the figure 1 and passing in the center of the device.
  • the device in section at the figure 5 is shown without the printed circuit board and without the electromechanical microsystem.
  • the shaping lens 20 comprises two attachment lugs 20.1 and 20.2 ( figure 2 ), these two ears being advantageously diametrically opposed. They are housed in cavities formed in the body 10, so as to ensure an angular orientation of the forming lens 20, the latter may not be symmetrical in revolution.
  • a second flange 34 in this case circular and closed, is disposed on the peripheral edge of the forming lens 20, including the ears, and is fixed to the body by means of screws.
  • the second lens 22.2 of the projection optical device is held in place by a third flange 36, also disposed on the peripheral edge of the second lens 22.2 and is fixed to the body by means of screws.
  • the shaping lens 20 and the second lens 22.2 are placed from outside the body by insertion into the respective receiving areas.
  • the first lens 22.1 is, in turn, put in place via the cavity 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

L'invention a pour objet un support (4) de module lumineux (2), notamment pour véhicule automobile, comprenant une zone de réception d'au moins une source lumineuse (16) ; une zone de réception d'un dispositif optique de mise en forme de la lumière émise par la ou les sources lumineuses (16) ; une zone de réception d'un microsystème électromécanique avec au moins un miroir apte à recevoir les rayons provenant du dispositif optique de mise en forme ; et une zone de réception d'au moins un dispositif optique de projection (22) recevant les rayons réfléchis par le ou les miroirs du microsystème électromécanique (8). Le support (4) forme une cavité (30) avec une ouverture et comprend une surface extérieure autour de ladite ouverture, ladite surface formant la zone de réception du microsystème électromécanique.The subject of the invention is a support (4) for a light module (2), in particular for a motor vehicle, comprising a reception zone for at least one light source (16); a reception area of an optical device for shaping the light emitted by the light source (s) (16); a reception zone of an electromechanical microsystem with at least one mirror capable of receiving the rays coming from the optical shaping device; and a reception zone of at least one projection optical device (22) receiving the rays reflected by the mirror (s) of the electromechanical microsystem (8). The support (4) forms a cavity (30) with an opening and includes an outer surface around said opening, said surface forming the receiving zone of the electromechanical microsystem.

Description

L'invention a trait au domaine de l'éclairage et de la signalisation lumineuse, notamment pour véhicule automobile. Plus particulièrement, l'invention a trait à un dispositif lumineux de signalisation apte à produire des pictogrammes lumineux au moyen d'un microsystème électromécanique avec une matrice de micro-miroirs.The invention relates to the field of lighting and light signaling, in particular for a motor vehicle. More particularly, the invention relates to a signaling light device capable of producing luminous pictograms by means of an electromechanical microsystem with a matrix of micro-mirrors.

Le document de brevet publié US 2015/0175054 A1 divulgue un dispositif lumineux pour projecteur de véhicule automobile. Le dispositif comprend une source lumineuse du type laser, un microsystème électromécanique servant de déflecteur de la lumière du laser, un élément luminophore du type phosphore apte à convertir la lumière monochromatique réfléchie par le déflecteur, et un dispositif optique comprenant plusieurs lentilles recevant la lumière blanche provenant de l'élément luminophore. Le déflecteur peut être piloté de manière à moduler l'image lumineuse ainsi produite. Le dispositif comprend un support pour supporter ces différents éléments. Le support est constitué de plusieurs parties assemblées les unes aux autres, directement ou indirectement comme par exemple via le boîtier du dispositif ou du projecteur. Un tel assemblage a cependant pour conséquence de former des chaînes de tolérances diminuant la précision de positionnement relatif des différents éléments. Dans certaines configurations optiques, notamment lorsque la source lumineuse est très proche du déflecteur, des tolérances serrées sont requise pour atteindre un résultat satisfaisant. De plus, dans cet enseignement, le déflecteur est disposé sur la face intérieure d'une paroi du support, alors que ce type composant est habituellement fixé sur une platine avec circuit imprimé, une telle platine étant potentiellement encombrante, notamment lorsque de nombreux composants électroniques sont nécessaires pour le contrôle du déflecteur.The published patent document US 2015/0175054 A1 discloses a light device for a motor vehicle headlamp. The device comprises a light source of the laser type, an electromechanical microsystem serving as a deflector of the laser light, a phosphor phosphor element able to convert the monochromatic light reflected by the deflector, and an optical device comprising several lenses receiving the white light from the phosphor element. The deflector can be controlled so as to modulate the light image thus produced. The device comprises a support for supporting these different elements. The support consists of several parts assembled to each other, directly or indirectly as for example via the housing of the device or the projector. Such an assembly, however, results in forming tolerance chains decreasing the relative positioning accuracy of the various elements. In certain optical configurations, especially when the light source is very close to the deflector, tight tolerances are required to achieve a satisfactory result. In addition, in this teaching, the deflector is disposed on the inner face of a wall of the support, whereas this type component is usually fixed on a printed circuit board, such a platen being potentially bulky, especially when many electronic components are needed for the control of the deflector.

L'invention a pour objectif de pallier au moins un des inconvénients de l'état de la technique susmentionné. Plus particulièrement, l'invention a pour objectif de proposer une solution assurant un positionnement précis des composants optiques d'un dispositif lumineux comprenant un microsystème électromécanique pourvu d'un ou plusieurs miroirs.The invention aims to overcome at least one of the disadvantages of the state of the art mentioned above. More particularly, the object of the invention is to propose a solution ensuring precise positioning of the optical components of a light device comprising an electromechanical microsystem provided with one or more mirrors.

L'invention a pour objet un support de module lumineux, notamment pour véhicule automobile, comprenant : une zone de réception d'au moins une source lumineuse ; une zone de réception d'un dispositif optique de mise en forme de la lumière émise par la ou les sources lumineuses ; une zone de réception d'un microsystème électromécanique avec au moins un miroir apte à recevoir les rayons provenant du dispositif optique de mise en forme ; et une zone de réception d'au moins un dispositif optique de projection recevant les rayons réfléchis par le ou les miroirs du microsystème électromécanique ; remarquable en ce que le support forme une cavité avec une ouverture et comprend une surface extérieure autour de ladite ouverture, ladite surface formant la zone de réception du microsystème.The subject of the invention is a luminous module support, in particular for a motor vehicle, comprising: an area for receiving at least one light source; a reception zone of an optical device for shaping the light emitted by the light source (s); a reception zone of an electromechanical microsystem with at least one mirror capable of receiving the rays coming from the optical shaping device; and a reception zone of at least one projection optical device receiving the rays reflected by the mirror (s) of the electromechanical microsystem; remarkable in that the support forms a cavity with an opening and comprises an outer surface around said opening, said surface forming the receiving zone of the microsystem.

Selon un mode avantageux de l'invention, le support comprend un corps d'un seul tenant, préférentiellement en aluminium, ledit corps formant les zones de réception de la ou des sources lumineuses, du dispositif optique de mise en forme et du dispositif optique de projection.According to an advantageous embodiment of the invention, the support comprises an integral body, preferably made of aluminum, said body forming the reception zones of the light source or sources, the optical shaping device and the optical device of FIG. projection.

Selon un mode avantageux de l'invention, le support comprend une plaque apte à être fixée au corps en vue de refermer partiellement la cavité et comprenant la surface extérieure formant la zone de réception du microsystème.According to an advantageous embodiment of the invention, the support comprises a plate adapted to be fixed to the body in order to partially close the cavity and comprising the outer surface forming the receiving zone of the microsystem.

Selon un mode avantageux de l'invention, la cavité est recouverte d'un revêtement antireflet, et/ou absorbant, préférentiellement noir.According to an advantageous embodiment of the invention, the cavity is covered with an antireflection coating, and / or absorbent, preferably black.

Selon un mode avantageux de l'invention, la cavité est délimitée par la zone de réception du dispositif optique de mise en forme et la zone de réception du dispositif optique de projection.According to an advantageous embodiment of the invention, the cavity is delimited by the receiving zone of the optical shaping device and the receiving zone of the projection optical device.

Selon un mode avantageux de l'invention, au moins une, préférentiellement chacune, des zones de réception des dispositifs optiques comprend un orifice pratiqué dans le support et un épaulement autour dudit orifice.According to an advantageous embodiment of the invention, at least one, preferably each, of the reception zones of the optical devices comprises an orifice made in the support and a shoulder around said orifice.

Selon un mode avantageux de l'invention, le dispositif comprend au sein de la cavité une languette en porte-à-faux avec un orifice destiné à être traversé par la lumière réfléchie par le microsystème vers le dispositif optique de projection.According to an advantageous embodiment of the invention, the device comprises, within the cavity, a cantilevered tongue with an orifice intended to be traversed by the light reflected by the microsystem towards the projection optical device.

L'invention a également pour objet un dispositif lumineux, notamment pour véhicule automobile, comprenant : un support ; au moins une source lumineuse disposée sur le support ; un dispositif optique de mise en forme de la lumière émise par la ou les sources lumineuses, ledit dispositif étant disposé sur le support ; un microsystème électromécanique avec au moins un miroir apte à recevoir les rayons provenant du dispositif optique de mise en forme, ledit microsystème étant disposé sur le support ; et un dispositif optique de projection apte à recevoir la lumière réfléchie par le ou les miroirs du microsystème électromécanique, ledit dispositif étant disposé sur le support ; remarquable en ce que le support est conforme à l'invention.The invention also relates to a light device, in particular for a motor vehicle, comprising: a support; at least one light source disposed on the support; an optical device for shaping the light emitted by the light source or sources, said device being disposed on the support; a microsystem electromechanical with at least one mirror adapted to receive the rays from the optical shaping device, said microsystem being disposed on the support; and an optical projection device adapted to receive the light reflected by the mirror (s) of the electromechanical microsystem, said device being disposed on the support; remarkable in that the support is in accordance with the invention.

Selon un mode avantageux de l'invention, la ou les sources lumineuses, le dispositif optique de mise en forme et le microsystème forment un premier axe optique, et ledit microsystème et le dispositif optique de projection forment un deuxième axe optique, l'angle entre lesdits axes optiques étant compris entre 40° et 65°, préférentiellement entre 45° et 60°.According to an advantageous embodiment of the invention, the light source or sources, the optical shaping device and the microsystem form a first optical axis, and the said microsystem and the optical projection device form a second optical axis, the angle between said optical axes being between 40 ° and 65 °, preferably between 45 ° and 60 °.

Selon un mode avantageux de l'invention, la ou les sources lumineuses sont du type diode à électroluminescence sur une platine disposées sur un radiateur fixé sur la zone de réception de ladite ou desdites sources lumineuses. Selon un autre mode avantageux de l'invention, alternatif au mode ci-avant, la ou les sources lumineuses, du type diode à électroluminescence, sont disposées via une embase directement sur le radiateur fixé sur la zone de réception de ladite ou desdites sources lumineuses.According to an advantageous embodiment of the invention, the light source (s) are of the electroluminescence diode type on a plate arranged on a radiator fixed on the reception zone of said light source (s). According to another advantageous embodiment of the invention, which is an alternative to the above mode, the light source (s), of the electroluminescence diode type, are arranged via a base directly on the radiator fixed on the reception zone of said light source (s). .

Selon un mode avantageux de l'invention, le dispositif optique de mise en forme comprend une lentille biconvexe et/ou le dispositif de projection comprend une lentille biconvexe et une lentille biconcave.According to an advantageous embodiment of the invention, the optical shaping device comprises a biconvex lens and / or the projection device comprises a biconvex lens and a biconcave lens.

Selon un mode avantageux de l'invention, la ou chacune des lentilles du ou des dispositifs optique est maintenue en place par une bride, fixée par exemple par vissage, collage, soudure, sertissage, bouterollage, par le biais de cheville ou de rivets, ou tout autre moyen de fixation, ou par la combinaison de deux ou plusieurs de ces moyens.According to an advantageous embodiment of the invention, the or each lens of the optical device or devices is held in place by a flange, fixed for example by screwing, gluing, soldering, crimping, pegging, by means of ankle or rivets, or any other means of attachment, or by the combination of two or more of these means.

Selon un mode avantageux de l'invention, le dispositif optique de mise en forme présente un diamètre supérieur à deux fois, préférentiellement trois fois, celui du dispositif optique de projection.According to an advantageous embodiment of the invention, the optical shaping device has a diameter greater than twice, preferably three times, that of the optical projection device.

Selon un mode avantageux de l'invention, le microsystème est sur une platine à circuit imprimé, ladite platine étant fixée au support de manière à plaquer ledit microsystème contre la zone de réception dudit microsystème.According to an advantageous embodiment of the invention, the microsystem is on a printed circuit board, said plate being fixed to the support so as to press said microsystem against the reception zone of said microsystem.

Selon un mode avantageux de l'invention, le dispositif lumineux est un feu arrière de signalisation apte à former des pictogrammes dans le faisceau lumineux produit, lesdits pictogrammes étant fonction d'une programmation du microsystème.According to an advantageous embodiment of the invention, the light device is a signal rear light capable of forming pictograms in the light beam produced, said pictograms being a function of a programming of the microsystem.

Les mesures de l'invention sont intéressantes en ce qu'elles permettent d'assurer un positionnement exact des différents composants, y compris le microsystème électromécanique alors que celui-ci est sur une platine à circuit imprimé.The measurements of the invention are interesting in that they make it possible to ensure exact positioning of the various components, including the electromechanical microsystem while it is on a printed circuit board.

D'autres caractéristiques et avantages de la présente invention seront mieux compris à l'aide de la description et des dessins parmi lesquels

  • La figure 1 est une représentation en perspective d'un dispositif lumineux conforme à l'invention ;
  • La figure 2 est une représentation en perspective des composants optiques du dispositif lumineux de la figure 1 ;
  • La figure 3 est une vue du dessous du support du dispositif lumineux de la figure 1 ;
  • La figure 4 correspond à la figure 3 où la plaque de fermeture partielle de la cavité du support est absente ;
  • La figure 5 est une vue en coupe longitudinale médiane du dispositif lumineux de la figure 1.
Other features and advantages of the present invention will be better understood from the description and the drawings among which
  • The figure 1 is a perspective representation of a light device according to the invention;
  • The figure 2 is a perspective representation of the optical components of the light device of the figure 1 ;
  • The figure 3 is a view from below of the support of the luminous device of the figure 1 ;
  • The figure 4 corresponds to the figure 3 where the partial closing plate of the cavity of the support is absent;
  • The figure 5 is a view in median longitudinal section of the light device of the figure 1 .

Les figures 1 à 5 illustrent un mode de réalisation de l'invention, étant entendu que d'autres modes de réalisation sont envisageables.The Figures 1 to 5 illustrate an embodiment of the invention, it being understood that other embodiments are possible.

La figure 1 est une représentation en perspective d'un dispositif lumineux 2 conforme à l'invention. Le dispositif lumineux 2 est en l'occurrence un dispositif de signalisation lumineuse pour véhicule automobile. Il comprend, essentiellement un support 4, des composants optiques disposés sur le support 4 et une platine à circuit imprimé 6 avec des composants électroniques et un microsystème optique électromécanique 8. Ce dernier comprend une matrice de micro-miroirs aptes à être commandés en pivotement de manière individuelle. Un tel microsystème est couramment appelé matrice de micro-miroirs ou DMD (acronyme pour « Digital Micromirror Device »). Chaque miroir peut prendre deux positions : il peut s'incliner de 10 à 15° suivant le même axe de façon à réfléchir la lumière soit vers une lentille de diffusion soit vers une surface absorbante. On dit qu'il commute « on » ou « off », ce régime est donc binaire. Un tel microsystème est en soi bien connu de l'homme de métier.The figure 1 is a perspective representation of a light device 2 according to the invention. The light device 2 is in this case a light signaling device for a motor vehicle. It comprises, essentially a support 4, optical components disposed on the support 4 and a printed circuit board 6 with electronic components and an electromechanical optical microsystem 8. The latter comprises a matrix of micro-mirrors adapted to be pivotally controlled by individual way. Such a microsystem is commonly called a micro-mirror array or DMD (acronym for "Digital Micromirror Device"). Each mirror can take two positions: it can tilt from 10 to 15 ° along the same axis so as to reflect the light either towards a diffusion lens or towards an absorbing surface. They say he switched "on" or "off" this regime is therefore binary. Such a microsystem is in itself well known to those skilled in the art.

Le support 4 du dispositif lumineux 2 comprend un corps 10 sur lequel est monté un radiateur 12. Ce dernier comprend une portion étendue 12.1 recevant une platine 14 avec une ou plusieurs sources lumineuses 16, par exemple du type diode à électroluminescence. Le radiateur 12 comprend également des ailettes 12.2 s'étendant essentiellement parallèlement l'une à l'autre depuis la portion étendue 12.1. Le corps 10 comprend une zone de réception 10.1 du radiateur 12 supportant la source lumineuse 16. Le corps forme un évidement 18 en vis-à-vis de la source lumineuse 16. Le fond de cet évidement 18 forme une zone de réception 10.2 d'une lentille 20 de mise en forme. Cette dernière forme un dispositif optique de mise en forme de la lumière émise par la source lumineuse 16. Le corps 10 forme une cavité (non visible à la figure 1) avec une ouverture sur la face inférieure 10.3 dudit corps. Le microsystème électromécanique 8 est disposé en vis-à-vis de cette ouverture afin de recevoir le faisceau lumineux formé par la lentille 20 de mise en forme. Le corps 10 comprend également une zone de réception 10.4 d'un dispositif optique de projection 22. Ce dernier peut comprendre deux lentilles dont une seule est visible à la figure 1.The support 4 of the light device 2 comprises a body 10 on which is mounted a radiator 12. The latter comprises an extended portion 12.1 receiving a plate 14 with one or more light sources 16, for example of the electroluminescence diode type. The radiator 12 also includes fins 12.2 extending substantially parallel to each other from the extended portion 12.1. The body 10 comprises a receiving zone 10.1 of the radiator 12 supporting the light source 16. The body forms a recess 18 opposite the light source 16. The bottom of this recess 18 forms a reception zone 10.2 of a shaping lens 20. The latter forms an optical device for shaping the light emitted by the light source 16. The body 10 forms a cavity (not visible at the figure 1 ) with an opening on the underside 10.3 of said body. The electromechanical microsystem 8 is disposed vis-à-vis this opening to receive the light beam formed by the forming lens 20. The body 10 also comprises a receiving zone 10.4 of an optical projection device 22. The latter may comprise two lenses, only one of which is visible at the figure 1 .

Le corps 10 est avantageusement d'un seul tenant, par exemple en aluminium. Il en va de même pour le radiateur 12. Chacun de ces deux éléments peut être réalisé par usinage ou moulage suivi éventuellement d'opérations d'usinage.The body 10 is advantageously in one piece, for example aluminum. It is the same for the radiator 12. Each of these two elements can be achieved by machining or molding followed possibly by machining operations.

La figure 2 illustre les composants optiques du dispositif lumineux 2 de la figure 1. On peut observer ceux-ci comprennent un diaphragme 24 formé par une languette 24.1 pourvue d'un orifice 24.2. Ce dernier est disposé entre le microsystème électromécanique 8 et le dispositif optique de projection 22. Le rôle du diaphragme est de couper les rayons lumineux qui se propagent de manière trop éloignée de la position nominale afin d'assurer une bonne définition, c'est-à-dire un bon piqué, de l'image créée par le système. Le dispositif optique de projection 22 comprend une première lentille 22.1 du type convergente et une deuxième lentille 22.2 du type divergente. La deuxième lentille présente une épaisseur importante au point de présenter une forme généralement cylindrique. La lentille 20 de mise en forme du faisceau de la lumière émise par la source lumineuse 16 est une lentille convergente biconvexe, configurée pour former un faisceau convergent vers le microsystème optique et éclairant la surface optique dudit système. On peut observer que la source lumineuse 16, la lentille 20 de mise en forme et le microsystème 8 sont alignés suivant un premier axe optique 26.1 et que ledit microsystème 8, le diaphragme 24 et le dispositif optique de projection 22 sont alignés suivant un deuxième axe optique 26.2. L'angle α formé par ces deux axes optiques est avantageusement compris entre 40° et 70°, préférentiellement entre 50° et 70°, ou entre 40° et 65°, ou encore entre 45° et 60°.The figure 2 illustrates the optical components of the luminous device 2 of the figure 1 . These can be observed include a diaphragm 24 formed by a tongue 24.1 provided with a 24.2 orifice. The latter is disposed between the electromechanical microsystem 8 and the optical projection device 22. The role of the diaphragm is to cut the light rays which propagate too far from the nominal position to ensure a good definition, that is to say to say a good dive, from the image created by the system. The projection optical device 22 comprises a first lens 22.1 of the convergent type and a second lens 22.2 of the divergent type. The second lens has a substantial thickness to the point of having a generally cylindrical shape. The lens 20 for shaping the beam of light emitted by the light source 16 is a converging lens biconvex, configured to form a beam converging towards the optical microsystem and illuminating the optical surface of said system. It can be seen that the light source 16, the shaping lens 20 and the microsystem 8 are aligned along a first optical axis 26.1 and that said microsystem 8, the diaphragm 24 and the optical projection device 22 are aligned along a second axis optical 26.2. The angle α formed by these two optical axes is advantageously between 40 ° and 70 °, preferably between 50 ° and 70 °, or between 40 ° and 65 °, or between 45 ° and 60 °.

Les figures 3 et 4 illustrent le dispositif lumineux de la figure 1, sans la platine et le microsystème électromécanique, vu depuis la face inférieure du support.The Figures 3 and 4 illustrate the luminous device of the figure 1 , without the plate and the electromechanical microsystem, seen from the underside of the support.

A la figure 3, on peut observer que le support 4 comprend, en outre, un élément 28, de fermeture partielle de la cavité 30, au sein du corps 10. Cet élément 28 est formé par une plaque 28.1 pourvue, à une portion périphérique, de moyens de fixation au corps 10, comme notamment des orifices destinés à recevoir des vis de fixation. La plaque 28.1 est également pourvue, à une portion centrale, d'une ouverture 28.2. Celle-ci est destinée à permettre à la lumière provenant de la lentille 20 de mise en forme à rencontrer la partie optique du microsystème électromécanique disposé en face de l'ouverture 28.2 en question. L'élément 28 peut à cet effet comprendre des plots 28.3 formant des surfaces d'appui du microsystème électromécanique. Ces plots 28.3, avantageusement au nombre de trois afin d'être isostatiques, forment des surfaces assimilables à des surfaces ponctuelles. Le microsystème électromécanique fixé à la platine à circuit imprimé peut alors être fixée au support de manière à ce que le microsystème électromécanique soit en pression sur les plots 28.3, assurant ainsi un contact et, partant, un positionnement exact suivant la direction perpendiculaire à la face 10.3 du corps 10. Des moyens de positionnement de la platine, suivant le plan de ladite platine, peuvent être prévus, comme notamment des piges traversant des orifices dans la platine et dans le corps 10 au niveau de la face 10.3.To the figure 3 it can be observed that the support 4 further comprises an element 28 for partially closing the cavity 30 within the body 10. This element 28 is formed by a plate 28.1 provided, at a peripheral portion, with means for attachment to the body 10, such as in particular holes for receiving fixing screws. The plate 28.1 is also provided, at a central portion, with an opening 28.2. This is intended to allow light from the shaping lens 20 to meet the optical part of the electromechanical microsystem disposed opposite the opening 28.2 in question. The element 28 may for this purpose include pads 28.3 forming bearing surfaces of the electromechanical microsystem. These pads 28.3, advantageously three in number to be isostatic, form surfaces comparable to point surfaces. The electromechanical microsystem attached to the printed circuit board can then be fixed to the support so that the electromechanical microsystem is in pressure on the pads 28.3, thus ensuring contact and hence exact positioning in the direction perpendicular to the face 10.3 of the body 10. Means for positioning the plate, in the plane of said plate, may be provided, such as pins through holes in the plate and in the body 10 at the face 10.3.

Toujours à la figure 3 ainsi qu'à la figure 4, on peut observer le diaphragme 24 dans la cavité 30 ainsi que son mode de fixation. La languette 24.1 formant le diaphragme comprend à son extrémité opposée à l'orifice 24.2 deux orifices 24.3 coopérant avec des tiges de positionnement encastrées dans le corps. Elle comprend également un orifice de fixation 24.4 central par rapport aux orifices 24.3 de positionnement, ledit orifice recevant une vis de fixation engageant avec le corps 10. A cet effet, le corps 10 comprend dans la cavité 30 un évidement formant une surface d'appui de la languette 24.1, permettant à celle-ci de passer sous l'élément 28 (suivant le point de vue de la figure 3). Il est intéressant de noter que l'orifice 24.2 est situé à l'extrémité de la languette 24.1 qui est située du côté de la lentille 20 de mise en forme, de manière à éviter toute obstruction du faisceau lumineux se propageant de la lentille 20 de mise en forme vers le microsystème électromécanique. La proximité entre ce faisceau et le bord de la languette 24.1 au niveau de l'orifice 24.2 est visible à la figure 2.Always at the figure 3 as well as figure 4 the diaphragm 24 can be seen in the cavity 30 as well as its method of attachment. The tab 24.1 forming the diaphragm comprises at its end opposite the orifice 24.2 two orifices 24.3 cooperating with positioning rods embedded in the body. It also includes a 24.4 central mounting hole relative to the positioning holes 24.3, said orifice receiving a fixing screw engaging with the body 10. For this purpose, the body 10 comprises in the cavity 30 a recess forming a bearing surface of the tongue 24.1 , allowing it to pass under element 28 (according to the point of view of the figure 3 ). It is interesting to note that the orifice 24.2 is located at the end of the tongue 24.1 which is situated on the side of the shaping lens 20, so as to avoid any obstruction of the light beam propagating from the lens 20 of the formatting towards the electromechanical microsystem. The proximity between this beam and the edge of the tongue 24.1 at the orifice 24.2 is visible at the figure 2 .

La figure 4 correspond à la figure 3, où toutefois l'élément 28 est absent. On peut y observer que la première lentille 22.1 du dispositif optique de projection 22 est maintenue en place sur corps 10 au moyen d'une première bride 32. Celle-ci peut présenter un profil ouvert, en l'occurrence en U, avec l'ouverture dirigée vers la lentille 20 de mise en forme. La lentille 20 de mise en forme et la première lentille 22.1 sont en effet très proches l'une de l'autre au point qu'aucune place n'est disponible pour une portion de bride entre les deux lentilles. La première bride 32 est avantageusement fixée au corps 10 par des vis engageant dans des trous filetés pratiqués dans ledit corps.The figure 4 corresponds to the figure 3 , where however the element 28 is absent. It can be seen that the first lens 22.1 of the projection optical device 22 is held in place on the body 10 by means of a first flange 32. This can have an open profile, in this case U, with the opening directed to the forming lens 20. The shaping lens 20 and the first lens 22.1 are in fact very close to one another so that no space is available for a flange portion between the two lenses. The first flange 32 is advantageously fixed to the body 10 by screws engaging in threaded holes made in said body.

La figure 5 est une vue en coupe du dispositif lumineux de la figure 1, la coupe étant suivant un plan longitudinal médian, c'est-à-dire suivant un plan généralement parallèle au plan de la figure 1 et passant au centre du dispositif. Le dispositif en coupe à la figure 5 est représenté sans la platine à circuit imprimé et sans le microsystème électromécanique.The figure 5 is a sectional view of the light device of the figure 1 , the section being in a median longitudinal plane, that is to say in a plane generally parallel to the plane of the figure 1 and passing in the center of the device. The device in section at the figure 5 is shown without the printed circuit board and without the electromechanical microsystem.

On peut y observer les deux axes optiques 26.1 et 26.2, ainsi que le montage de lentilles. En effet, la lentille 20 de mise en forme comprend deux oreilles de fixation 20.1 et 20.2 (figure 2), ces deux oreilles étant avantageusement diamétralement opposées. Elles sont logées dans des cavités formées dans le corps 10, de manière à assurer une orientation angulaire de la lentille 20 de mise en forme, celle-ci pouvant ne pas être symétrique en révolution. Une deuxième bride 34, en l'occurrence circulaire et fermée, est disposée sur le bord périphérique de la lentille 20 de mise en forme, y compris les oreilles, et est fixée au corps au moyen de vis. Similairement, la deuxième lentille 22.2 du dispositif optique de projection est maintenue en place par une troisième bride 36, également disposée sur le bord périphérique de la deuxième lentille 22.2 et est fixée au corps au moyen de vis.The two optical axes 26.1 and 26.2 can be observed, as well as the lens assembly. Indeed, the shaping lens 20 comprises two attachment lugs 20.1 and 20.2 ( figure 2 ), these two ears being advantageously diametrically opposed. They are housed in cavities formed in the body 10, so as to ensure an angular orientation of the forming lens 20, the latter may not be symmetrical in revolution. A second flange 34, in this case circular and closed, is disposed on the peripheral edge of the forming lens 20, including the ears, and is fixed to the body by means of screws. Similarly, the second lens 22.2 of the projection optical device is held in place by a third flange 36, also disposed on the peripheral edge of the second lens 22.2 and is fixed to the body by means of screws.

La lentille 20 de mise en forme et la deuxième lentille 22.2 sont mises en place depuis l'extérieur du corps par insertion dans les zones de réception respectives. La première lentille 22.1 est, quant à elle, mise en place via la cavité 30.The shaping lens 20 and the second lens 22.2 are placed from outside the body by insertion into the respective receiving areas. The first lens 22.1 is, in turn, put in place via the cavity 30.

Claims (15)

Support (4) de module lumineux (2), notamment pour véhicule automobile, comprenant : - une zone de réception (10.1) d'au moins une source lumineuse (16) ; - une zone de réception (10.2) d'un dispositif optique de mise en forme de la lumière émise par la ou les sources lumineuses (16) ; - une zone de réception d'un microsystème électromécanique (8) avec au moins un miroir apte à recevoir les rayons provenant du dispositif optique de mise en forme ; et - une zone de réception (10.4) d'au moins un dispositif optique de projection (22) recevant les rayons réfléchis par le ou les miroirs du microsystème électromécanique (8) ; caractérisé en ce que
le support (4) forme une cavité (30) avec une ouverture et comprend une surface extérieure autour de ladite ouverture, ladite surface formant la zone de réception du microsystème électromécanique (8).Support (4) for a light module (2), in particular for a motor vehicle, comprising: - a reception zone (10.1) of at least one light source (16); - a reception zone (10.2) of an optical device for shaping the light emitted by the light source (s) (16); - A receiving zone of an electromechanical microsystem (8) with at least one mirror adapted to receive the rays from the optical shaping device; and - a reception zone (10.4) of at least one projection optical device (22) receiving the rays reflected by the mirror or mirrors of the electromechanical microsystem (8); characterized in that
the support (4) forms a cavity (30) with an opening and comprises an outer surface around said opening, said surface forming the receiving zone of the electromechanical microsystem (8). Support (4) selon la revendication 1, caractérisé en ce que le support (4) comprend un corps (10) d'un seul tenant, préférentiellement en aluminium, ledit corps formant les zones de réception (10.1, 10.2, 10.4) de la ou des sources lumineuses (16), du dispositif optique de mise en forme et du dispositif optique de projection (22).Support (4) according to claim 1, characterized in that the support (4) comprises a body (10) in one piece, preferably aluminum, said body forming the receiving zones (10.1, 10.2, 10.4) of the or light sources (16), the optical shaping device and the projection optical device (22). Support (4) selon la revendication 2, caractérisé en ce que le support (4) comprend une plaque (28.1) apte à être fixée au corps (10) en vue de refermer partiellement la cavité (30) et comprenant la zone de réception du microsystème électromécanique (8).Support (4) according to claim 2, characterized in that the support (4) comprises a plate (28.1) adapted to be fixed to the body (10) in order to partially close the cavity (30) and comprising the receiving zone of the electromechanical microsystem (8). Support (4) selon l'une des revendications 1 à 3, caractérisé en ce que la cavité (30) est recouverte d'un revêtement antireflet et/ou absorbant, préférentiellement noir.Support (4) according to one of claims 1 to 3, characterized in that the cavity (30) is covered with an antireflection coating and / or absorbent, preferably black. Support (4) selon l'une des revendications 1 à 4, caractérisé en ce que la cavité (30) est délimitée par la zone de réception (10.2) du dispositif optique de mise en forme et la zone de réception (10.4) du dispositif optique de projection (22).Support (4) according to one of claims 1 to 4, characterized in that the cavity (30) is delimited by the receiving zone (10.2) of the optical device of shaping and the receiving area (10.4) of the projection optical device (22). Support (4) selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins une, préférentiellement chacune, des zones de réception (10.2, 10.4) des dispositifs optiques de mise en forme et de projection (22) comprend un orifice pratiqué dans le support (4) et un épaulement autour dudit orifice.Support (4) according to one of claims 1 to 5, characterized in that at least one, preferably each, reception areas (10.2, 10.4) optical shaping devices and projection (22) comprises a orifice formed in the support (4) and a shoulder around said orifice. Support (4) selon l'une des revendications 1 à 6, caractérisé en ce qu'il comprend au sein de la cavité (30) une languette (24.1) en porte-à-faux et avec un orifice (24.2) destiné à être traversé par la lumière réfléchie par le microsystème électromécanique (8) vers le dispositif optique de projection (22).Support (4) according to one of claims 1 to 6, characterized in that it comprises within the cavity (30) a tongue (24.1) cantilever and with a hole (24.2) intended to be traversed by the light reflected by the electromechanical microsystem (8) to the projection optical device (22). Dispositif lumineux (2), notamment pour véhicule automobile, comprenant : - un support (4) ; - au moins une source lumineuse (16) disposée sur le support (4) ; - un dispositif optique de mise en forme de la lumière émise par la ou les sources lumineuses (16), ledit dispositif étant disposé sur le support (4) ; - un microsystème électromécanique (8) avec au moins un miroir apte à recevoir les rayons provenant du dispositif optique de mise en forme, ledit microsystème étant disposé sur le support (4) ; et - un dispositif optique de projection (22) apte à recevoir la lumière réfléchie par le ou les miroirs du microsystème électromécanique (8), ledit dispositif étant disposé sur le support (4) ; caractérisé en ce que
le support (4) est conforme à l'une des revendications 1 à 7.Luminous device (2), in particular for a motor vehicle, comprising: a support (4); at least one light source (16) disposed on the support (4); an optical device for shaping the light emitted by the light source (s) (16), said device being disposed on the support (4); an electromechanical microsystem (8) with at least one mirror capable of receiving the rays coming from the optical shaping device, said microsystem being disposed on the support (4); and - an optical projection device (22) adapted to receive the light reflected by the mirror or mirrors of the electromechanical microsystem (8), said device being disposed on the support (4); characterized in that
the support (4) is according to one of claims 1 to 7. Dispositif (2) selon la revendication 8, caractérisé en ce que la ou les sources lumineuses (16), le dispositif optique de mise en forme et le microsystème (8) forment un premier axe optique (26.1), et ledit microsystème et le dispositif optique de projection (22) forment un deuxième axe optique (26.2), l'angle entre lesdits axes optiques étant compris entre 40° et 65°, préférentiellement entre 45° et 60°.Device (2) according to claim 8, characterized in that the light source (s) (16), the optical shaping device and the microsystem (8) form a first optical axis (26.1), and said microsystem and the device optical projection (22) form a second optical axis (26.2), the angle between said optical axes being between 40 ° and 65 °, preferably between 45 ° and 60 °. Dispositif (2) selon l'une des revendications 8 et 9, caractérisé en ce que la ou les sources lumineuses (16) sont du type diode à électroluminescence sur une platine (14) disposée(s) sur un radiateur (12) fixé sur la zone de réception (10.1) de ladite ou desdites sources lumineuses (16).Device (2) according to one of claims 8 and 9, characterized in that the light source (s) (16) are of the electroluminescence diode type on a plate (14) arranged on a radiator (12) fixed on the receiving area (10.1) of said light source (s) (16). Dispositif (2) selon l'une des revendications 8 à 10, caractérisé en ce que le dispositif optique de mise en forme comprend une lentille (20) de mise en forme qui est biconvexe et/ou le dispositif de projection (22) comprend une première lentille (22.1) qui est biconvexe et une deuxième lentille (22.2) qui est biconcave.Device (2) according to one of claims 8 to 10, characterized in that the optical shaping device comprises a forming lens (20) which is biconvex and / or the projection device (22) comprises a first lens (22.1) which is biconvex and a second lens (22.2) which is biconcave. Dispositif (2) selon la revendication 11, caractérisé en ce que la ou chacune des lentilles (20, 22.1, 22.2) du ou des dispositifs optiques de mise en forme et de projection (22) est maintenue en place par une bride (32, 34, 36).Device (2) according to claim 11, characterized in that the or each of the lenses (20, 22.1, 22.2) of the optical shaping or projection device (22) is held in place by a flange (32, 34, 36). Dispositif (2) selon l'une des revendications 8 à 12, caractérisé en ce que le dispositif optique de mise en forme présente un diamètre supérieur à deux fois, préférentiellement trois fois, celui du dispositif optique de projection (22).Device (2) according to one of claims 8 to 12, characterized in that the optical shaping device has a diameter greater than two times, preferably three times, that of the projection optical device (22). Dispositif (2) selon l'une des revendications 8 à 13, caractérisé en ce que le microsystème électromécanique (8) est sur une platine à circuit imprimé (6), ladite platine étant fixée au support (4) de manière à plaquer ledit microsystème contre la zone de réception dudit microsystème.Device (2) according to one of claims 8 to 13, characterized in that the electromechanical microsystem (8) is on a printed circuit board (6), said plate being fixed to the support (4) so as to flatten said microsystem against the reception zone of said microsystem. Dispositif (2) selon l'une des revendications 8 à 14, caractérisé en ce qu'il est un feu arrière de signalisation apte à former des pictogrammes dans le faisceau lumineux produit, lesdits pictogrammes étant fonction d'une programmation du microsystème.Device (2) according to one of claims 8 to 14, characterized in that it is a signal rear light capable of forming pictograms in the light beam produced, said pictograms being a function of a programming of the microsystem.
EP17192239.6A 2016-09-28 2017-09-20 Integral mounting for luminous device with micro-mirror array Pending EP3301351A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1659227A FR3056685B1 (en) 2016-09-28 2016-09-28 MONOBLOC BRACKET FOR LUMINOUS DEVICES WITH MICRO-MIRRORS MATRIX

Publications (1)

Publication Number Publication Date
EP3301351A1 true EP3301351A1 (en) 2018-04-04

Family

ID=57396688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17192239.6A Pending EP3301351A1 (en) 2016-09-28 2017-09-20 Integral mounting for luminous device with micro-mirror array

Country Status (4)

Country Link
US (1) US10619818B2 (en)
EP (1) EP3301351A1 (en)
CN (1) CN107869695B (en)
FR (1) FR3056685B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4328483A1 (en) * 2022-08-25 2024-02-28 ZKW Group GmbH Method for automatically assembling a light module for a motor vehicle headlight

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112839145A (en) * 2019-11-22 2021-05-25 余姚舜宇智能光学技术有限公司 TOF camera module, manufacturing method thereof and electronic equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050237620A1 (en) * 2004-04-23 2005-10-27 Nien-Hui Hsu Heat dissipation structure for optical engine
US20060078266A1 (en) * 2004-10-08 2006-04-13 Wu Chao H Optical engine and an image projector having the optical engine
US20080259290A1 (en) * 2007-04-23 2008-10-23 Coretronic Corporation Projection apparatus
JP2014106270A (en) * 2012-11-26 2014-06-09 Nippon Seiki Co Ltd Display device
US20150092435A1 (en) * 2013-10-02 2015-04-02 Koito Manufacturing Co., Ltd. Vehicle headlamp
WO2016050503A1 (en) * 2014-10-02 2016-04-07 Valeo Vision Symbol-displaying signalling device for a motor vehicle, and signal light equipped with such a lighting device
JP2016091976A (en) * 2014-11-11 2016-05-23 株式会社小糸製作所 Vehicle lamp fitting

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086882A (en) * 1992-11-09 1994-05-18 林晓丹 Method with prism design decoration with rainbow colours light fixture
US5796094A (en) * 1993-02-26 1998-08-18 Donnelly Corporation Vehicle headlight control using imaging sensor
US7655894B2 (en) * 1996-03-25 2010-02-02 Donnelly Corporation Vehicular image sensing system
GB2342467B (en) * 1998-10-09 2003-06-04 Donnelly Corp A light-reponsive vehicle control such as an electro-optic rearview mirror system that is adaptive to vehicle configuration
DE19946351B4 (en) * 1999-09-28 2010-04-08 Automotive Lighting Reutlingen Gmbh Headlights for vehicles
US6890090B2 (en) * 2001-08-08 2005-05-10 Automotive Lighting Reutlingen Gmbh Headlight for a motor vehicle
US6992573B2 (en) * 2002-11-05 2006-01-31 Donnelly Corporation Vehicle rearview mirror system with protocol detection
WO2012124522A1 (en) * 2011-03-15 2012-09-20 シャープ株式会社 Light-emitting device, illumination device, headlamp, and vehicle
US8992056B2 (en) * 2012-02-03 2015-03-31 I/O Controls Corporation Vehicle headlight and alert system
EP2894086B1 (en) * 2012-09-07 2017-12-20 Mitsubishi Electric Corporation Vehicle headlight device
AT513738B1 (en) * 2012-12-20 2014-07-15 Zizala Lichtsysteme Gmbh Lighting unit for a headlight
US9658447B2 (en) * 2013-12-09 2017-05-23 Texas Instruments Incorporated Multiple illumination sources for DMD lighting apparatus and methods
CN203949561U (en) * 2014-03-22 2014-11-19 珠海市春秋光学仪器有限公司 Red point sighting lens graduation adjusting device and open optics red point sighting lens
US10107467B2 (en) * 2014-06-26 2018-10-23 Texas Instruments Incorporated Methods and apparatus for illumination with DMD and laser modulated adaptive beam shaping
TWM498387U (en) * 2014-06-30 2015-04-01 Ligitek Electronics Co Ltd Light emitting diode module package structure having thermal-electric separated function and electrical connection module
FR3038697B1 (en) * 2015-07-10 2017-08-11 Valeo Vision METHOD FOR CONTROLLING A BRIGHT BEAM AND LIGHTING AND / OR SIGNALING MODULE THEREOF
CN205191235U (en) * 2015-10-27 2016-04-27 常志刚 Led projection lamp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050237620A1 (en) * 2004-04-23 2005-10-27 Nien-Hui Hsu Heat dissipation structure for optical engine
US20060078266A1 (en) * 2004-10-08 2006-04-13 Wu Chao H Optical engine and an image projector having the optical engine
US20080259290A1 (en) * 2007-04-23 2008-10-23 Coretronic Corporation Projection apparatus
JP2014106270A (en) * 2012-11-26 2014-06-09 Nippon Seiki Co Ltd Display device
US20150092435A1 (en) * 2013-10-02 2015-04-02 Koito Manufacturing Co., Ltd. Vehicle headlamp
WO2016050503A1 (en) * 2014-10-02 2016-04-07 Valeo Vision Symbol-displaying signalling device for a motor vehicle, and signal light equipped with such a lighting device
JP2016091976A (en) * 2014-11-11 2016-05-23 株式会社小糸製作所 Vehicle lamp fitting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4328483A1 (en) * 2022-08-25 2024-02-28 ZKW Group GmbH Method for automatically assembling a light module for a motor vehicle headlight

Also Published As

Publication number Publication date
FR3056685B1 (en) 2021-01-15
FR3056685A1 (en) 2018-03-30
US20180087739A1 (en) 2018-03-29
CN107869695A (en) 2018-04-03
CN107869695B (en) 2022-06-24
US10619818B2 (en) 2020-04-14

Similar Documents

Publication Publication Date Title
EP4065882B1 (en) Light module of a motor vehicle equipped with an optical element
EP3999380B1 (en) Lighting device for a motor vehicle
CA2810700C (en) Optical module of an illuminating and/or signalling device of a motor vehicle
CA2810385A1 (en) Optical module of an illuminating and/or signalling device of a motor vehicle
FR2858043A1 (en) Light e.g. headlight for vehicle e.g. automobile, has semiconductor light emitting unit to emit light from fixed lighting region and support unit to adjust center of region on fixed position with respect to reference unit
EP3521692B1 (en) Dual-function light module with common lit surface
WO2016050624A1 (en) Luminous device of vehicle with means for positioning an electronic board
EP3190335B1 (en) Luminous device provided with a curved wavelength conversion element, and headlight comprising such a luminous device
EP3301351A1 (en) Integral mounting for luminous device with micro-mirror array
EP3239598B1 (en) Rotary light module
EP3300952A1 (en) Variable interior lighting device for vehicle
EP2926049B1 (en) Vehicle signalling device with three-dimensional effect
FR3047210A1 (en) LUMINOUS DEVICE WITH REINFORCING PLATE
FR3056686A1 (en) FIXING A MICRO-MIRROR ARRAY IN A LIGHT DEVICE
EP2853804B1 (en) Lighting and/or signalling module with a plurality of rotary optical systems
FR2726628A1 (en) MOTOR VEHICLE HEADLIGHT COMPRISING TWO SEPARATE REFLECTORS AND MEANS OF ADJUSTING ORIENTATION
EP3115681A1 (en) Light module for motor vehicle headlight
FR2853718A1 (en) LIGHTING PROJECTOR FOR A MOTOR VEHICLE COMPRISING MEANS FOR SPREADING THE LIGHT BEAM
FR3062458A1 (en) LIGHT BEAM PROJECTION MODULE FOR LIGHT EMITTING DEVICE OF MOTOR VEHICLE
EP4184054B1 (en) Safety lighting device
FR3077117A1 (en) LUMINOUS MODULE FOR A MOTOR VEHICLE, AND LIGHTING AND / OR SIGNALING DEVICE EQUIPPED WITH SUCH A MODULE
EP1475268A1 (en) Arrangement for positioning and fastening an equipment element in a motor vehicle
WO2023186942A1 (en) Light module comprising a device for adjusting the orientation of a light beam
FR2749236A1 (en) Temporary support for rear lamp assembly during motor vehicle assembly
FR3146110A1 (en) Optical signaling unit intended to be integrated into a motor vehicle headlight

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180928

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20211015

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230528