• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a light module, especially lighting and / or signaling, for a motor vehicle, the module being able to emit a first predetermined regulatory photometric beam, the module comprising at least: a first light source associated with the first beam regulatory photometric device capable of emitting light, - a first optical guide, said first guide having a coupling face of the light emitted by the first light source and a decoupling face of the light coupled in the first guide, the first guide being arranged to allow the propagation of light from its coupling face to its decoupling face, - an additional optical element arranged to receive light from the decoupling face of the first guide, the additional optical element comprising a light input face and a light output face, the module being characterized in that at least one of the input and output faces of the additional optical element comprises optical arrangements able to deviate from the light coming from the decoupling face so as to at least partially form the photometry of said first predetermined regulatory photometric beam.
    公开号:FR3024529A1
    申请号:FR1457377
    申请日:2014-07-30
    公开日:2016-02-05
    发明作者:Christophe Valois；Frederic Luu；Stephane Riou
    申请人:Valeo Vision Belgique SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a light module fitted to a motor vehicle, comprising at least one optical guide and an additional optical element. The invention has applications in the field of vehicles traveling on roads and, in particular, motor vehicles. Currently, it is known to use, in the road lighting devices or the signaling devices or in the lighting devices of the passenger compartment of the vehicle, one or more optical guides for propagating a light beam. Such optical guides make it possible to carry out photometric functions while offering great freedom of style, for example by curving these guides. However, it has been found that it can be complex to obtain with the aid of a curved guide a predetermined regulatory photometric beam, that is to say having a desired luminous flux distributed in a predetermined manner over an angular range regulatory. Indeed, although such optical guides make it possible to obtain a luminous flux sufficient for the realization of a given photometric function, it is difficult to obtain the regulatory angular range of this function while keeping a complete aesthetic freedom as to the realization of this guide. The object of the invention is to remedy this drawback. The subject of the invention is thus a light module, in particular for lighting and / or signaling, for a motor vehicle, the module being able to emit a first predetermined regulatory photometric beam 25, the module comprising at least: a first light source associated with the first prescribed regulatory photometric beam and capable of emitting light, - a first optical guide, said first guide comprising a coupling face 30 of the light emitted by the first light source and a decoupling face of the light coupled in the first guide, the first guide being arranged to allow the propagation of light from its coupling face to its decoupling face, an additional optical element arranged to receive light from the decoupling face of the first guide, the additional optical element having a light input face and a light output face, the characterized in that at least one of the input and output faces of the additional optical element comprises optical arrangements capable of deflecting the light coming from the decoupling face so as to form at least partially the photometry of said first predetermined regulatory photometric beam. Advantageously, the optical arrangements are arranged exclusively vis-à-vis the decoupling face of the first guide. Possibly the width of a layout is less than or equal to the width of the guide. The first optical guide may advantageously be a guide of circular section and curved profile. The light emitted by the light source and penetrating into the guide via the coupling face thus propagates in the guide by total internal reflection against the walls of the guide.
    [0002] The invention thus proposes to add in the light module an additional optical element to the first guide which makes it possible to obtain the photometry of the first predetermined regulatory photometric beam, without modifying the structure and in particular the curvature of the guide. It is therefore possible to obtain said predetermined regulatory photometric beam while keeping a great freedom of realization of the guide. The light module according to the invention may comprise one or more of the following features: the first guide comprises a reflection face, opposite to the decoupling face, which may be smooth. In this case, the rays entering the first guide via the coupling face propagate in the first guide to meet the reflection face, so as to be reflected towards the decoupling face and thus out of the guide via this face of decoupling; - The reflection face comprises a succession of prisms, each prism forming with the prism following a bottom angle. Each prism can thus be formed by at least two inclined faces relative to each other, the prisms are arranged to straighten light propagating in the first guide so that this light leaves the decoupling face by presenting a sufficient luminous flux to the realization of the first predetermined regulatory photometric beam. By luminous flux is meant the amount of light contained in an angular range. In this case, the angular range can be shifted with respect to the regulatory photometric range of the first beam and / or have a narrower range than that of the regulatory photometric range of the first beam, - the optical arrangements are arranged to straighten the light coming from the decoupling face so that this light leaves the output face in an angular range including the angular range of the first predetermined regulatory photometry beam, the optical arrangements are arranged only on the input face of the optical element additional. The exit face can be in this case smooth. In a variant, the optical arrangements can be arranged only on the output face of the additional optical element, or else on the input and output faces of the additional optical element, the optical arrangements are arranged so as to follow the profile, including the entire profile, of the first guide. In this case the optical arrangements can be arranged in a row. Advantageously, the arrangements can be evolving along the row and for example have a height and / or a width and / or an evolutionary step. If desired, each layout can be centered on the guide. the optical arrangements form several rows of optical arrangements disposed adjacent to each other, each arrangement is formed by a convex rib, the convex rib is a cylindrical rib of vertical generator. Alternatively, the convex rib may be a torus, each arrangement is formed by a ripple, that is to say by a convex rib followed by a concave recess. This type of arrangement has the advantage of being easier to industrialize than a convex rib which has a sharp angle, the corrugation is a cylindrical corrugation of vertical generatrix. Advantageously, the rib and the recess are cylindrical, of the same generatrix and their direction forming a continuous curve, the set of arrangements forms a succession of continuous corrugations, - the additional optical element is formed by a closing glass of the light module . Alternatively, the additional optical element may be an intermediate screen disposed between the first guide and an ice of the light module, the first light source is able to emit white light through the coupling face of the first guide. The first regulatory photometric beam can in this case form a diurnal light function (DRL), the module is able to emit a second predetermined regulatory photometric beam distinct from the first predetermined regulatory photometric beam, the module comprising a second light source associated with the second predetermined regulatory photometric beam, wherein the second light source is adapted to emit amber light through the coupling face of the first guide. The second regulatory photometric beam can in this case form a direction indicator function, the first and second light sources each comprise at least one semiconductor light emitting chip. In this case, the first and second sources may belong to the same light-emitting diode of the multi-chip type, the first and second light sources are mounted on the same support, for example the same printed circuit board, the first light source is also associated to the second predetermined regulatory photometric beam, the first light source being able to emit light at a reduced light intensity with respect to the light emitted for the first predetermined regulatory photometric beam. The second regulatory photometric beam can in this case form a position light function, the module comprising: a second light source associated with the second predetermined regulatory light beam and capable of emitting light, a second optical guide, said second guide comprising a coupling face of the light emitted by the second light source and a decoupling face of the light coupled in the second guide, the second guide being arranged to allow the propagation of light from its coupling face to its face of decoupling, the module being characterized in that at least one of the input and output faces of the additional optical element comprises other optical arrangements able to deviate from the light coming from the decoupling face of the second guide so as to at least partially form the photometry of said second regulatory light beam pre determined. In this case, the first and second guides can form the same part. The invention will be better understood on reading the appended figures, which are provided by way of example and are not limiting in nature, in which: FIGS. 1 and 2 respectively show in perspective and in section a light module according to a first embodiment of the invention, and - Figures 3 and 4 respectively show in perspective and in section a light module according to a second embodiment of the invention, and is shown in Figure 1 and 2 a light module 1 lighting system for a motor vehicle according to a first embodiment of the invention. The module 1 is capable of emitting a first prescribed regulatory light beam F1 of DRL daytime running light type. The first beam F1 requires a given luminous flux and distributed in a determined manner over an angular range P1 The module 1 comprises a first light source 2 capable of emitting light and associated with the first beam F1.
    [0003] The module 1 further comprises a first optical guide 3 of circular section and curved profile. The first optical guide 3 comprises a coupling face 31 of the light emitted by the first light source 1 and a smooth decoupling front face 32 of the light coupled in the first guide.
    [0004] The first guide 3 further comprises a reflection rear face 33, opposite to the decoupling front face 32. The reflection face 33 is provided with a succession of prisms 34, each prism forming with the prism at a bottom angle. It can thus be seen in FIG. 2 that each prism 34 is formed by at least two inclined faces relative to one another. The first light source 2 thus emits r rays in the first guide 3 via the coupling face 31 which propagate by total internal reflection to meet the rear reflection face 33, so as to be reflected by the prisms 34 towards the decoupling face 32 and thus out of the guide via this decoupling face.
    [0005] FIG. 2 shows that the prisms 34 are arranged to straighten the r rays propagating in the first guide so that these r r rays leave the decoupling face 32 by presenting a sufficient luminous flux to the realization of the first predetermined regulatory photometric beam . However, it can be seen that the angular range P1 'of the r rays coming out of the decoupling face 32 is shifted and has a limited range with respect to the regulatory photometric range P1 of the first beam F1. In other words, the r rays leaving the light guide 3 form a partial beam which, although having a light flux sufficient to perform the DRL function, does not provide the regulatory photometry of this function DRL. For this purpose, the module 1 comprises an additional optical element 4, formed by a closing glass of the light module, arranged to receive light coming from the decoupling face 32 of the first guide 3.
    [0006] The additional optical element 4 having a light input face 41 and a smooth light output face 42. The input face 41 of the additional optical element 4 comprises optical arrangements 43 arranged in a row exclusively in with respect to the decoupling face 32 of the first guide 3 and so as to follow the curved profile of the first guide 3. In addition, the width of each arrangement 43 is less than or equal to the width of the decoupling face 32 of the guide 3. As illustrated in Figure 2, each arrangement 43 is formed by a corrugation, i.e. by a convex rib followed by a concave recess. Furthermore, each corrugation 43 is a cylindrical corrugation of vertical generatrix so as to exclusively impact the horizontal distribution of the light rays passing through the additional optical element 4. The set of arrangements 43 forms a continuous wave along the additional optical element 4. It can be seen in FIG. 2 that the arrangements 43 are able to deviate from the light coming from the decoupling face 32 and thus to straighten this light so that this light leaves the exit face in a corresponding angular range P1 to the angular range of the first predetermined regulatory photometry beam F1. In other words, the arrangements 43 make it possible to spread the rays of light r leaving the decoupling face and thus both to widen the range P1 'and to shift it so as to form the range P1. The module 1 thus makes it possible to obtain a regulatory F1 beam of the DRL type without, however, modifying the aesthetics of the module related to the curvature of the optical guide 3.
    [0007] FIGS. 3 and 4 show a light module 5 according to a second embodiment of the invention. The module 5 is capable of emitting a first prescribed regulatory light beam F1 of DRL daytime running light type, a second predetermined directional lighting photometric beam F2 of the direction indicator type T1 and a third predetermined regulation light photometric beam F3 of the PL position light type. The first, second and third beams F1, F2 and F3 each require a given luminous flux and distributed in a determined manner over an angular range. The module 5 comprises a first light source 21 capable of emitting white light and associated with the first beam F1, a second light source 22 capable of emitting amber light and associated with the second beam F2 and a third light source 23 able to emit white light associated with the third beam F3. The sources 21, 22 and 23 are mounted on the same printed circuit board 24. In addition, the sources 22 and 23 belong to the same light-emitting diode of the multi-chip type.
    [0008] The module 5 comprises first and second optical guides 61 and 62 of circular section and curved profile, similar to the optical guide 3 of the embodiment of Figure 2. The first light source 21 and emits rays in the first guide 61 while that the second and third sources 22 and 23 each emit rays, simultaneously or not, in the second guide 62. The module 5 further comprises an additional optical element 7, formed by a closure glass of the light module, arranged so as to receiving light from each of the decoupling faces of the first and second guides 61 and 62. The additional optical element 7 having a light input face 71 and a smooth light output face 72. The face of The inlet 71 of the additional optical element 7 has optical arrangements 73 arranged in several rows arranged adjacent to one another and opposite the first mistletoe. 61. These arrangements 73 are similar to the arrangements 43 of the module 1 of Figure 2. The input face 71 also comprises arrangements 74 arranged in row and vis-à-vis the decoupling face of the second guide 62 Each arrangement 74 is formed by a convex rib of vertical generatrix. In addition, the height and pitch of the ribs 74 progressively decreases along the additional optical element 7 with the distance to the light sources 22 and 23. It can be seen in FIG. 4 that the arrangements 74 make it possible to spread the light r2 and r3 respectively emitted by the sources 22 and 23 leaving the decoupling face and thus respectively expand the range P2 'and refocus the range P3' so as to form the P2 and P3 ranges. The module 1 thus makes it possible to obtain beams F1, F2 and F3 of the DRL, Tl and PL regulatory type without, however, modifying the aesthetics of the module related to the curvatures of the optical guides 61 and 62.
    [0009] The embodiments of the invention forming the basis of the present description are not limiting, provided that they make it possible to obtain the technical effects as claimed.
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. Luminous module, in particular lighting and / or signaling, for a motor vehicle, the module being able to emit a first predetermined regulatory photometric beam, the module comprising at least: a first light source associated with the first predetermined and suitable regulatory photometric beam to emit light, - a first optical guide, said first guide having a coupling face of the light emitted by the first light source and a decoupling face of the light coupled in the first guide, the first guide being arranged to allow the propagation of light from its coupling face towards its decoupling face; - an additional optical element arranged to receive light coming from the decoupling face of the first guide, the additional optical element comprising an input face of light and a light output face, the module being characterized in that at least one of the input and output faces of the additional optical element comprises optical arrangements able to deviate from the light coming from the decoupling face so as to at least partially form the photometry of said first predetermined regulatory photometric beam.
    [0002]
    2. The light module according to the preceding claim, wherein the first guide comprises a reflection face, opposite to the decoupling face, the reflection face comprises a succession of prisms, each prism forming with the prism at a bottom angle.
    [0003]
    3. Light module according to claim 2, wherein the prisms are arranged to straighten light propagating in the first guide so that this light leaves the decoupling face by having a sufficient light flux to the realization of the first photometric beam. predetermined regulatory
    [0004]
    4. Module according to one of claims 1 to 3, wherein the optical arrangements are arranged to straighten the light from the decoupling face so that this light leaves the exit face in an angular range including at the angular range of the first predetermined regulatory photometry beam.
    [0005]
    5. The light module according to one of claims 1 to 4, wherein the optical arrangements are arranged only on the input face of the additional optical element.
    [0006]
    6. Module according to one of claims 1 to 5, wherein each arrangement is formed by a convex rib.
    [0007]
    7. Module according to claim 6, wherein the convex rib is a cylindrical rib of vertical generatrix.
    [0008]
    8. Module according to one of claims 1 to 5, wherein each arrangement is formed by a corrugation.
    [0009]
    9. Module according to claim 8, wherein the corrugation is a cylindrical corrugation of vertical generator.
    [0010]
    10. Module according to claim 9, wherein the set of arrangements forms a succession of continuous corrugations.
    [0011]
    11. Light module according to one of claims 1 to 10, wherein the additional optical element is formed by a closing crystal of the light module.
    [0012]
    12. Light module according to one of claims 1 to 11, characterized in that the module is adapted to emit a second predetermined regulatory photometric beam distinct from the first predetermined regulatory photometric beam, the module comprising: a second light source associated with the second regulatory light beam predetermined and able to emit light, - a second optical guide, said second guide having a coupling face of the light emitted by the second light source and a decoupling face of the light coupled in the second guide, the second guide being arranged to allow propagation of the light from its coupling face to its decoupling face, the module being characterized in that at least one of the input and output faces of the additional optical element comprises other optical arrangements able to deviate from the light from the face of d coupling the second guide so as to at least partially form the photometry of said second predetermined regulatory photometric beam.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3024529B1|2016-09-02|
    EP2980469A1|2016-02-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10101795A1|2001-01-17|2002-07-18|Bosch Gmbh Robert|Flashing light, especially front flashing light, for motor vehicles has boundary light source in part of light conducting element in part of path of light from flashing light source|
    EP1391755A2|2002-08-21|2004-02-25|Hella KG Hueck & Co.|Vehicle lamp|
    US20060067084A1|2004-09-24|2006-03-30|Schefenacker Vision Systems Germany Gmbh|Light guide for lights, in particular for motor vehicle lights|
    EP2476947A2|2011-01-14|2012-07-18|Valeo Vision|Lighting or signalling device with an optical guide for an automobile vehicle|
    EP2541128A2|2011-06-30|2013-01-02|Valeo Vision|Optical device and signalling and / or lighting system|
    FR2977654A1|2011-07-04|2013-01-11|Automotive Lighting Reutlingen|LIGHTING DEVICE FOR A VEHICLE WITH A COVER PLATE OBLIGED SUBJECT TO THE DIRECTION OF DISPLACEMENT|
    US20130114277A1|2011-11-08|2013-05-09|Zizala Lichtsysteme Gmbh|Lightguide Element|
    WO2014105424A2|2012-12-28|2014-07-03|3M Innovative Properties Company|Stacked lightguide tailight article|
    EP3258166A1|2016-06-14|2017-12-20|Honda Motor Co., Ltd.|Vehicular lighting with light guides|
    JP6777432B2|2016-06-15|2020-10-28|スタンレー電気株式会社|Vehicle lighting|
    JP6883418B2|2016-12-19|2021-06-09|株式会社小糸製作所|Vehicle lamp|
    DE102019103855B4|2019-02-15|2021-09-30|Lisa Dräxlmaier GmbH|Vehicle interior lighting device|
    EP3875847A1|2020-03-02|2021-09-08|ZKW Group GmbH|Signal light device for a motor vehicle headlight|
    DE102020109136A1|2020-04-02|2021-10-07|Bayerische Motoren Werke Aktiengesellschaft|Lighting device for a motor vehicle|
    法律状态:
    2015-07-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-05| PLSC| Search report ready|Effective date: 20160205 |
    2016-07-29| PLFP| Fee payment|Year of fee payment: 3 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 5 |
    2019-07-31| PLFP| Fee payment|Year of fee payment: 6 |
    2020-07-31| PLFP| Fee payment|Year of fee payment: 7 |
    2021-07-29| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1457377A|FR3024529B1|2014-07-30|2014-07-30|LIGHT MODULE WITH OPTICAL GUIDE FOR MOTOR VEHICLE|FR1457377A| FR3024529B1|2014-07-30|2014-07-30|LIGHT MODULE WITH OPTICAL GUIDE FOR MOTOR VEHICLE|
    EP15178278.6A| EP2980469A1|2014-07-30|2015-07-24|Light module with optical waveguide for a motor vehicle|
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