EP2957823B1 - Rotary lighting and/or signalling module - Google Patents
Rotary lighting and/or signalling module Download PDFInfo
- Publication number
- EP2957823B1 EP2957823B1 EP15171671.9A EP15171671A EP2957823B1 EP 2957823 B1 EP2957823 B1 EP 2957823B1 EP 15171671 A EP15171671 A EP 15171671A EP 2957823 B1 EP2957823 B1 EP 2957823B1
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- European Patent Office
- Prior art keywords
- frame
- light source
- lighting
- screen
- module
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- 230000003287 optical effect Effects 0.000 claims description 39
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- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000009131 signaling function Effects 0.000 description 28
- 230000006870 function Effects 0.000 description 18
- 230000001105 regulatory effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000009828 non-uniform distribution Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000005286 illumination Methods 0.000 description 1
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- 239000002964 rayon Substances 0.000 description 1
Images
Classifications
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- 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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/19—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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
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- 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
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
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- 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
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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- 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
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- 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 / or signaling, in particular for motor vehicles. More particularly, the invention relates to a lighting and / or signaling module for a motor vehicle, as well as to a headlight comprising such a module.
- EP2902701 A1 which belongs to the state of the art according to Article 54 (3) EPC, shows a lighting and / or signaling module for a motor vehicle, comprising at least a light source, a reflector and a light guide.
- the reflector is movable under the effect of an actuator, and the light source is fixed relative to the actuator.
- the light guide is integral with the reflector support.
- the document FR 2 817 212 describes a motor vehicle headlight with a directional lighting function better known by the acronym DBL (Dynamic Bending Light).
- the projector includes an optical system whose direction of illumination is changed by rotation, an output shaft coupled to the optical system to drive the optical system, a motor, and a rotation transmission mechanism coupled to the motor to drive it. transmits the rotation of the motor to the output shaft, wherein the motor, the output shaft and the rotation transmission mechanism are placed in a housing body, and a rotating shaft of the motor is supported by the housing body .
- a support shaft of an intermediate gear placed between the motor and the output shaft is directly supported by the housing body.
- the document EP 1 285 812 describes a projector comprising a movable assembly provided with a reflector and a light source, and a fixed assembly at least partially bordering the movable assembly which can rotate, relative to the fixed assembly, about a first vertical axis for azimuth adjustment, and around a horizontal transverse axis for elevation adjustment.
- the purpose of such an arrangement is to keep the operating clearances constant between the fixed parts and the moving parts.
- the document EP 2 423 047 describes a headlight of a motor vehicle designed to combine the night lighting function with the daytime signaling function known by the English acronym DRL (Daytime Running Light). Night lighting is obtained by a fixed lighting module, while DRL type lighting is achieved by means of an array of light-emitting diodes which can be retracted into a position internal to the projector.
- DRL Daytime Running Light
- the object of the invention is to provide a module and a lighting and / or signaling projector capable of providing at least two lighting and / or signaling functions, and of simple and compact construction.
- the invention relates to a lighting and / or signaling module in particular for a motor vehicle, comprising means for optical deflection of light rays emitted by a first light source, as well as a frame comprising at least one screen capable of taking a position on the path of the light rays deflected by said optical deflection means.
- the optical deflection means and said frame are mounted so as to be able to rotate while the first light source remains fixed, and control means are able to send control instructions to actuators controlling on the one hand the rotation of said deflection means. optics and the chassis and the other switching on and off of said first light source.
- optical deflection means and the first light source cooperate to fulfill a regulatory lighting and / or signaling function.
- the frame can be mounted to be able to rotate independently of the rotation of the optical deflection means. It advantageously comprises two screens, said frame being mounted movable in rotation to pass from a first extreme position in which a first screen of the frame is placed opposite a second light source which is distinct and fixed with respect to said first light source, to a second extreme position in which the second screen of the frame is placed opposite the second light source.
- the invention also relates to a lighting and / or signaling headlamp for a motor vehicle, comprising a housing and at least one lighting and / or signaling module, in which the lighting and / or signaling module is compliant. to what has been described above.
- the projector can advantageously comprise three lighting and / or signaling modules.
- a lighting and / or signaling module 10 is fixed in a housing (not shown) of a projector, and it comprises a first actuator 12 integral with the housing, a first axis 14 driven in rotation by the first actuator 12 and integral with a support 16, as well as a frame 18 which comprises at least one screen transparent to light and which is mounted around the support 16 so that the at least one screen of the frame can be placed opposite one side of the support.
- This frame is mounted movable in rotation, and this independently of the support, so that the frame can rotate around the support, while the latter remains fixed or otherwise rotates.
- the first actuator 12 comprises an electric motor, driven by control means (not visible on the figures 1 and 2 ) and able to transmit a control instruction to said motor, and transmission means in rotation between the motor and the first axis.
- the first axis 14 supports the support 16 in its lower part, and the first axis 14 is substantially vertical, but it could have another orientation.
- the support 16 of the module 10 comprises a first reflecting face 20 playing the role of a reflector capable of providing a lighting and / or regulatory signaling function. This function is fulfilled by the cooperation of the reflector 20 with a first light source 22.
- the first light source 22 is fixed relative to the actuator.
- a lighting and / or signaling function complies with the regulations in force.
- This lighting and / or regulatory signaling function can be a daytime signaling function, commonly referred to by the name DRL (from the acronym “Daytime Running Light”), or else a daytime running light function. crossing, commonly referred to as "code”, or a lighting function commonly referred to as "road”.
- DRL daytime Running Light
- code a daytime running light function. crossing
- the first reflecting face 20 thus ensures the formation of a regulatory lighting and / or signaling beam directed towards the front of the vehicle.
- the first light source 22 is a semiconductor source, and preferably of the light emitting diode (LED) type, and is substantially aligned with the first axis 14.
- the expression “substantially aligned” is understood to mean that the distance between the geometric center of the light-emitting diode 22 and the axis of rotation of the support 16 is not greater than the dimensions of the light-emitting diode 22
- the latter can be fixed and positioned on a printed circuit board 24, itself fixed in the housing (not shown) of the projector.
- the support 16 of the module 10 also comprises a second face 26 opposite the first face forming the reflector 20 and providing a second function.
- This second function can be either a regulatory daytime signaling function, or a regulatory crossing and / or main road lighting function, or an aspect function.
- the module 10 may include an upper pivot 36 collinear with the first axis 14 via the support 16 to increase the precision of the relative positioning of the first light source 22 with respect to the reflector 20.
- the frame 18 is made of a material transparent to light and it comprises two screens 28 and 30 which extend substantially vertically in the module, mutually parallel. Each screen has a peripheral edge 38 and an upper edge 40.
- the screens are connected on the one hand at their upper end by transverse connecting walls 32 which are connected perpendicularly to the lateral ends of the upper edge of the screen, forming a base. upper, in particular for stiffening the frame, and on the other hand at their lower end by a structural element of the frame 46 which forms a lower base substantially parallel to the horizontal walls.
- the screens preferably take the form of a sheet light guide, with a central portion of the sheet having a curved profile, the curvature of which substantially follows the direction of rotation of the frame.
- the frame is thus arranged in the module so that it surrounds the support, with the first screen 28 or the second screen 30 which is able, depending on the position of the frame, to take the active position upstream of the support, that is to say say on the path of the light rays when the optical deflection means reflect light rays emitted by the first light source 22 towards the output of the module.
- the central part of the web of each screen can carry decoupling means, in particular prisms, for the deflection of the rays reflected by the reflector and passing through the screen. Provision can in particular be made for the optical devices to be distributed non-uniformly over the central part of the web relative to the direction of rotation of the frame. The advantage of such a non-uniform distribution of the optical devices can be found in a progression of the optical effect produced by the passage of the rays through the screen, as it rotates towards the active position.
- Other structural differences may appear, such as for example the fact that one of the screens of the frame carries light decoupling elements, arranged or not to form patterns, for example on all or part of its surface for the function of 'aspect, while the other screen does not have such an aspect to remain neutral.
- the module comprises a second actuator (not shown) integral with the housing, controlled like the first actuator by control means not shown here, and a second axis 44 driven in rotation by the second actuator.
- the second axis 44 extends parallel to the first axis of rotation of the support, between the actuator and the structural element 46 of the frame which extends transversely, perpendicularly to the second axis.
- the second actuator comprises, in a manner equivalent to the first actuator 12, an electric motor and transmission means in rotation between the motor and the second axis 44.
- a possible arrangement of the two actuators and of the two axes is illustrated in the figures, it being understood that other types of arrangement may be chosen by those skilled in the art.
- the structural element of the frame 46 extends substantially perpendicularly the lower end of the at least one screen, extending across the first axis of rotation of the support.
- the structural element of the frame has a through bore, not visible in the figures, capable of allowing passage to the first axis of rotation.
- the second axis 44 here consists of two rods which are each connected to the structural element of the frame 46 and to the second actuator, and which are arranged diametrically on either side of the shaft forming the first axis 14.
- the second actuator is controlled as a function of a control instruction received from control means of the module, so as to make the frame pivot around the second axis and so as to move the screen between a retracted position, in which the screen is not or hardly visible, and an active position, in which the screen is upstream of the support.
- upstream is understood to mean the position in which the screen is arranged between the support and the front of the vehicle, towards which the lighting and / or signaling functions are directed.
- a second light source 34 fixed and positioned on a printed circuit board, advantageously the carrier board also for the first light source 22, capable of illuminating the screen of the chassis. which is in the active position upstream of the support. Provision is made for the second light source to be arranged at a determined distance from the first light source so that the screen of the frame, when it is in the active position upstream of the support, is placed in line with the second source of light. light and can be illuminated by it.
- the second light source 34 is fixed relative to the first light source 22 and it remains fixed while the support and / or the frame rotates. It can consist of one or more light-emitting diodes (LED).
- the first screen or the second screen of the frame 18 which is found in this active position upstream of the support is placed in line with the second light source 34 so as to be able to thus perform a regulatory signaling function if the second source light is on.
- the entry face of the frame for the light rays emitted by this second light source is formed by the upper edge of the screen while the exit faces are arranged in the peripheral edge.
- a lighting and / or signaling function is thus performed, distinct from that performed by the reflection of light rays from the first light source.
- the peripheral part of the screen can have a prism oriented in one way or another to return the light from the second source 34 to the front of the vehicle to fulfill a signaling function and / or to the rear to participate. to the aspect function.
- the second light source 34 can be switched on in addition to the first light source 22 so that the peripheral part 38 of the first screen 28, facing the reflector, emits light. This makes it possible to use a first screen of the frame 18 in addition to the reflector 20.
- a preferred use of the two light sources is to keep the second source constantly on and to increase the intensity of the second light source if one. wishes to perform a signaling function, or to turn on the first light source if one wishes to perform a lighting function.
- the rotation of the frame can advantageously be controlled independently of that of the support.
- the control device sends an instruction to the second actuator to set the chassis or not.
- the rotation of the chassis is played on in order to place in front of the reflector alternately a first screen, neutral, or a second screen carrying decoupling elements of light, arranged or not to form patterns for example. Provision can thus be made to rotate the frame around the support which remains stationary and to turn on the second light source when it is the screen bearing patterns in its center which is opposite this source to produce a scenario of welcoming the driver before entering the vehicle.
- the module is initially in a rest position P1 (the position illustrated on figure 2 ): the module 10 is oriented so that the aspect face 26 is oriented towards the front of the vehicle, to be visible from outside the vehicle.
- a screen of the frame, here the first screen 28, is arranged opposite the aspect face, upstream of the latter.
- a signaling function is advantageously carried out, by switching on the second light source above the first screen which, for the light rays penetrating through its upper edge, acts as an optical guide with an exit face arranged in periphery.
- the appearance function of the second face 26 of the support 16 can thus be accompanied by the signaling function provided by the chassis 18.
- This signaling function can be used before starting the vehicle, essentially for aesthetic reasons, or when '' daytime running, to perform or participate in the so-called DRL (Day Running Light) daytime lighting function
- control means When the control means receive information I1 for triggering night lighting, either by the driver or by visibility sensors for example, the control means generate a control instruction C1 to the first actuator for the rotation of the associated support, in order to rotate the support by 180 ° and move the reflecting face to the active position P2, facing the front of the vehicle.
- control means prepare a control instruction C2 for the first light source to force its ignition and allow the emission of light rays on the reflecting face.
- control means carry out a test T1 to find out whether the support has arrived in an active functional position. As long as the answer is negative, that is to say that the angular position of the optical system formed by the support is not included in the range of values defined by the manufacturer, the ignition control instruction n ' is not sent to the first light source and it remains off. As soon as the response is positive, i.e.
- the control instruction C2 is sent and the first light source is turned on and emits light rays in the direction of the reflective face of the support.
- an angular range of +/- 2 ° is provided around the stop position of the reflector in the active position, in which the manufacturer considers that the rotation of the reflector does not disturb the path of the rays reflected at the exit. module, or at least that the resulting disturbances are acceptable in order to comply with the regulatory conditions of the lighting and / or signaling function performed.
- the module adopts, automatically or on the basis of control information I2 received by the control means, a different configuration in which the support 16 of the module 10 is rotated by 180 ° relative to the configuration of the figure 2 , so as to resume the rest position P1 and present the second face 26 facing the front of the vehicle, to thus perform the appearance and / or lighting and / or signaling function also described above.
- the first light source is turned off before the holder leaves the active position.
- the control means send simultaneously, or almost simultaneously, a control instruction C3 to the first actuator for the rotation of the support and a control instruction C4 to extinguish the first light source.
- the support is ordered so that the reflector is in the active position P3 (position visible on the figure 1 ) as soon as the vehicle is moving and the aspect function is no longer required.
- the control means give instruction C5 to the second actuator to bring one of the screens into the active position upstream of the reflector.
- control means prepare an instruction C6 for switching on the second light source, so as to allow the emission of light rays into the web of the screen placed under the second light source.
- control means carry out a T2 test to find out whether the optical system formed by the chassis has arrived in an active functional position. As long as the response is negative, i.e. the angular position of the chassis is not within a second range of values defined by the manufacturer, the ignition control instruction is not sent to the first light source and it remains off.
- the second range of values may be the same as the first range of values, that is to say +/- 2 ° in the numerical example given here by way of nonlimiting example, or else that on the contrary, it can be different, and preferably larger than the first range of values.
- the disturbances that the rotation of the frame can generate on the rays emitted by the second light source can be considered legally less penalizing, because they impact a signaling function, than the disturbances generated by the rotation of the reflector and of the associated frame on the rays emitted by the first light source which impact a lighting function.
- the command command C6 is sent and the second light source is on and emits light rays in the direction of the first screen arriving under the second light source.
- the lighting function can also be directional, that is to say of the DBL type (Dynamic Bending Light), thanks to the actuator 12 of the module 10, which can control a rotation of the reflector of a few degrees around the first axis. .
- the rotation of the screen is controlled so that the screen again remains in the axis of emission of the rays reflected by the reflector, so that no scattering of the rays results from this directional lighting.
- the first light source remains on even if the angle of rotation of the reflector is greater than the threshold defined by the angular range described above, since the screen follows the rotation of the support.
- the beams generated by the module (s) which have been described above can constitute beams complementary to regulatory beams generated by conventional devices, or else they can together constitute regulatory lighting and / or beams. or signaling.
- the characteristic according to which the light source is switched off prior to the rotational movement of the optical system formed by the support and / or the frame, before being switched on again only under conditions of angular position of the optical system makes it possible to benefit from the multiple combinations possible in the lighting and / or signaling functions of the vehicle offered by the possible rotations of the reflector support and of the chassis without however presenting the risk of non-regulatory lighting or signaling.
- the headlight of a motor vehicle in order to perform lighting and / or signaling functions, may include one or more modules identical to that which has been described, arranged in series in a housing.
- a series of several modules advantageously three, provision may be made to make the support of each module and the frame of each module rotatable by actuators which can be controlled independently of each other, to ensure greater flexibility in the lighting and / or signaling functions, and each of the modules will be associated with a control device capable of carrying out the instructions for implementing the ignition control method according to the invention, this control device being able to be common to the three modules.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Description
L'invention a trait au domaine de l'éclairage et/ou de la signalisation, notamment pour véhicules automobiles. Plus particulièrement, l'invention a trait à un module d'éclairage et/ou de signalisation pour véhicule automobile, ainsi qu'à un projecteur comprenant un tel module.The invention relates to the field of lighting and / or signaling, in particular for motor vehicles. More particularly, the invention relates to a lighting and / or signaling module for a motor vehicle, as well as to a headlight comprising such a module.
Le document
Le document
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L'invention a pour objectif de proposer un module et un projecteur d'éclairage et/ou de signalisation aptes à assurer au moins deux fonctions d'éclairage et/ou de signalisation, et de construction simple et compacte.The object of the invention is to provide a module and a lighting and / or signaling projector capable of providing at least two lighting and / or signaling functions, and of simple and compact construction.
L'invention concerne un module d'éclairage et/ou de signalisation notamment pour véhicule automobile, comportant des moyens de déviation optique de rayons lumineux émis par une première source de lumière, ainsi qu'un châssis comportant au moins un écran apte à prendre une position sur le trajet des rayons lumineux déviés par lesdits moyens de déviation optique. Les moyens de déviation optique et ledit châssis sont montés mobile en rotation tandis que la première source de lumière reste fixe, et des moyens de commande sont aptes à envoyer des instructions de commande à des actionneurs commandant d'une part la rotation desdits moyens de déviation optique et du châssis et d'autre l'allumage et l'extinction de ladite première source de lumière.The invention relates to a lighting and / or signaling module in particular for a motor vehicle, comprising means for optical deflection of light rays emitted by a first light source, as well as a frame comprising at least one screen capable of taking a position on the path of the light rays deflected by said optical deflection means. The optical deflection means and said frame are mounted so as to be able to rotate while the first light source remains fixed, and control means are able to send control instructions to actuators controlling on the one hand the rotation of said deflection means. optics and the chassis and the other switching on and off of said first light source.
Dans un tel module, on comprend que les moyens de déviation optique et la première source de lumière coopèrent pour remplir une fonction d'éclairage et/ou de signalisation réglementaire.In such a module, it is understood that the optical deflection means and the first light source cooperate to fulfill a regulatory lighting and / or signaling function.
Le châssis peut être monté mobile en rotation indépendamment de la rotation des moyens de déviation optique. Il comporte avantageusement deux écrans, ledit châssis étant monté mobile en rotation pour passer d'une première position extrême dans laquelle un premier écran du châssis est disposé en regard d'une deuxième source lumineuse distincte et fixe par rapport à ladite première source lumineuse, à une deuxième position extrême dans laquelle le second écran du châssis est disposé en regard de la deuxième source lumineuse.The frame can be mounted to be able to rotate independently of the rotation of the optical deflection means. It advantageously comprises two screens, said frame being mounted movable in rotation to pass from a first extreme position in which a first screen of the frame is placed opposite a second light source which is distinct and fixed with respect to said first light source, to a second extreme position in which the second screen of the frame is placed opposite the second light source.
En outre l'invention possède les caractéristiques suivantes, considérées isolément ou en combinaison :
- au moins un des deux écrans porte des moyens optiques aptes à dévier les rayons lumineux le traversant lorsqu'il est en position active en amont des moyens de déviation optique ;
- les moyens optiques portés par un premier desdits deux écrans sont différents des moyens optiques portés par le second desdits deux écrans ;
- lesdites sources lumineuses consistent en des sources à semi-conducteurs, et notamment des diodes électroluminescentes.
- at least one of the two screens carries optical means capable of deflecting the light rays passing through it when it is in the active position upstream of the optical deflection means;
- the optical means carried by a first of said two screens are different from the optical means carried by the second of said two screens;
- said light sources consist of semiconductor sources, and in particular light-emitting diodes.
L'invention concerne également un projecteur d'éclairage et/ou de signalisation pour véhicule automobile, comprenant un boîtier et au moins un module d'éclairage et/ou de signalisation, dans lequel le module d'éclairage et/ou de signalisation est conforme à ce qui a été décrit précédemment. Le projecteur peut comporter avantageusement trois modules d'éclairage et/ou de signalisation.The invention also relates to a lighting and / or signaling headlamp for a motor vehicle, comprising a housing and at least one lighting and / or signaling module, in which the lighting and / or signaling module is compliant. to what has been described above. The projector can advantageously comprise three lighting and / or signaling modules.
D'autres caractéristiques et avantages de la présente invention apparaitront plus clairement à l'aide de la description et des dessins parmi lesquels :
- la
figure 1 est une vue en perspective de trois quart avant d'un module d'éclairage et/ou de signalisation selon un premier mode de réalisation de l'invention, représenté ici dans une première position avec une face d'aspect neutre d'un support qui est tournée vers l'avant du véhicule et avec un écran d'un châssis qui est en regard de cette face d'aspect ; et - la
figure 2 est une vue, similaire à celle de lafigure 1 , du module représenté dans une deuxième position avec un support inchangé et un châssis tourné à 180° pour que l'écran soit en regard d'une face formant réflecteur, à l'opposé de la face d'aspect.
- the
figure 1 is a three-quarter front perspective view of a lighting and / or signaling module according to a first embodiment of the invention, shown here in a first position with a face of neutral appearance of a support which is turned towards the front of the vehicle and with a screen of a frame which is opposite this aspect face; and - the
figure 2 is a view, similar to that of thefigure 1 , of the module shown in a second position with an unchanged support and a frame rotated through 180 ° so that the screen is facing a face forming a reflector, opposite the appearance face.
Dans la description qui va suivre, on adoptera à titre non limitatif une orientation longitudinale, verticale et transversale selon l'orientation traditionnellement utilisée dans l'automobile et indiquée par le trièdre L, V, T reporté sur la
Selon l'invention, un module d'éclairage et/ou de signalisation 10 est fixé dans un boitier (non représenté) d'un projecteur, et il comporte un premier actionneur 12 solidaire du boitier, un premier axe 14 entrainé en rotation par le premier actionneur 12 et solidaire d'un support 16, ainsi qu'un châssis 18 qui comporte au moins un écran transparent à la lumière et qui est monté autour du support 16 de sorte que le au moins un écran du châssis puisse être disposé en regard de l'une des faces du support. Ce châssis est monté mobile en rotation, et ce de façon indépendante du support, de telle manière que le châssis peut tourner autour du support, pendant que celui-ci reste fixe ou tourne par ailleurs.According to the invention, a lighting and / or
Le premier actionneur 12 comprend un moteur électrique, piloté par des moyens de commande (non visibles sur les
Le support 16 du module 10 comprend une première face réfléchissante 20 jouant le rôle d'un réflecteur apte à assurer une fonction d'éclairage et/ou de signalisation réglementaire. Cette fonction est remplie par la coopération du réflecteur 20 avec une première source de lumière 22. La première source de lumière 22 est fixe par rapport à l'actionneur.The
On entend par « réglementaire » le fait qu'une fonction d'éclairage et/ou de signalisation est conforme à la réglementation en vigueur. Cette fonction d'éclairage et/ou de signalisation réglementaire peut être une fonction de signalisation de jour, communément désigné par l'appellation DRL (de l'acronyme anglo-saxon « Daytime Running Light »), ou bien une fonction d'éclairage de croisement, communément désignée « code », ou encore une fonction d'éclairage communément désignée « route ». La première face réfléchissante 20 assure ainsi la formation d'un faisceau d'éclairage et/ou de signalisation réglementaire dirigé vers l'avant du véhicule.By “regulatory” is meant the fact that a lighting and / or signaling function complies with the regulations in force. This lighting and / or regulatory signaling function can be a daytime signaling function, commonly referred to by the name DRL (from the acronym “Daytime Running Light”), or else a daytime running light function. crossing, commonly referred to as "code", or a lighting function commonly referred to as "road". The first reflecting
La première source de lumière 22 est une source à semi-conducteurs, et de préférence du type diode à électroluminescence (LED), et elle est sensiblement alignée sur le premier axe 14. On entend par l'expression « sensiblement alignée » que la distance entre le centre géométrique de la diode électroluminescente 22 et l'axe de rotation du support 16 n'est pas supérieure aux dimensions de la diode électroluminescente 22. Cette dernière peut être fixée et positionnée sur une carte de circuits imprimés 24, elle-même fixée dans le boitier (non représenté) du projecteur.The
Le support 16 du module 10 comporte également une deuxième face 26 opposée à la première face formant le réflecteur 20 et assurant une deuxième fonction. Cette deuxième fonction peut être soit une fonction de signalisation de jour réglementaire, soit une fonction d'éclairage de croisement et/ou de route réglementaire, soit une fonction d'aspect.The
Tel qu'illustré, le module 10 peut comporter un pivot supérieur 36 colinéaire avec le premier axe 14 par l'intermédiaire du support 16 pour accroître la précision du positionnement relatif de la première source de lumière 22 par rapport au réflecteur 20.As illustrated, the
Le châssis 18 est réalisé dans un matériau transparent à la lumière et il comporte deux écrans 28 et 30 qui s'étendent sensiblement verticalement dans le module, parallèles entre eux. Chaque écran présente un bord périphérique 38 et un bord supérieur 40. Les écrans sont reliés d'une part à leur extrémité supérieure par des parois de liaison transversales 32 qui se raccordent perpendiculairement aux extrémités latérales du bord supérieur de l'écran en formant une base supérieure notamment de rigidification du châssis, et d'autre part à leur extrémité inférieure par une un élément de structure du châssis 46 qui forme une base inférieure sensiblement parallèle aux parois horizontales. Les écrans prennent de préférence la forme d'un guide de lumière en nappe, avec une partie centrale de la nappe qui présente un profil galbé dont la courbure suit sensiblement la direction de rotation du châssis. Le châssis est ainsi agencé dans le module de sorte qu'il entoure le support, avec le premier écran 28 ou le deuxième écran 30 qui est apte selon la position du châssis à prendre la position active en amont du support, c'est-à-dire sur le trajet des rayons lumineux lorsque les moyens de déviation optique réfléchissent des rayons lumineux émis par la première source de lumière 22 vers la sortie du module.The
La partie centrale de la nappe de chaque écran peut porter des moyens de découplage, notamment des prismes, pour la déviation des rayons réfléchis par le réflecteur et traversant l'écran. On peut notamment prévoir que les dispositifs optiques soient répartis non uniformément sur la partie centrale de la nappe par rapport à la direction de rotation du châssis. L'intérêt d'une telle répartition non uniforme des dispositifs optiques peut se retrouver dans une progressivité de l'effet optique rendu par le passage des rayons à travers l'écran, au fur et à mesure de sa rotation vers la position active.The central part of the web of each screen can carry decoupling means, in particular prisms, for the deflection of the rays reflected by the reflector and passing through the screen. Provision can in particular be made for the optical devices to be distributed non-uniformly over the central part of the web relative to the direction of rotation of the frame. The advantage of such a non-uniform distribution of the optical devices can be found in a progression of the optical effect produced by the passage of the rays through the screen, as it rotates towards the active position.
On peut prévoir que les deux écrans 28 et 30 présentent des surfaces optiques différentes, l'un présentant par exemple une surface neutre, apte à ne pas gêner la diffusion des rayons lumineux émis par la première source 22 et déviés par le réflecteur, tandis que l'autre peut comporter des dispositifs optiques tels qu'ils viennent d'être décrits avec une répartition non uniforme, ou bien des dispositifs optiques dont l'agencement peut former un ou plusieurs motifs représentatifs par exemple d'une marque que l'on souhaite mettre en évidence lors d'une fonction de signalisation. D'autres différences structurelles peuvent apparaître, comme par exemple le fait que l'un des écrans du châssis porte des éléments de découplage de la lumière, agencés ou non pour former des motifs par exemple sur tout ou partie de sa surface pour la fonction d'aspect, tandis que l'autre écran ne présente pas un tel aspect pour rester neutre.Provision can be made for the two
Tel que cela a été décrit précédemment, on peut prévoir, dans un mode de réalisation particulièrement intéressant et riche en combinaisons possibles de fonctions d'éclairage et/ou de signalisation, notamment dans le cas où les écrans portent des dispositifs optiques qui leur sont propres, que ce châssis 18 soit monté mobile en rotation de façon indépendante du support 16, de telle manière que le châssis peut tourner autour du support, pendant que celui-ci reste fixe ou tourne par ailleurs. A cet effet, le module comporte un deuxième actionneur (non-représenté) solidaire du boîtier, piloté comme le premier actionneur par des moyens de commande ici non représentés, et un deuxième axe 44 entraîné en rotation par le deuxième actionneur. Le deuxième axe 44 s'étend parallèlement au premier axe de rotation du support, entre l'actionneur et l'élément de structure 46 du châssis qui s'étend transversalement, perpendiculairement au deuxième axe.As has been described above, it is possible to provide, in a particularly interesting embodiment rich in possible combinations of lighting and / or signaling functions, in particular in the case where the screens carry optical devices which are specific to them. , that this
Le deuxième actionneur comporte, de façon équivalente au premier actionneur 12, un moteur électrique et des moyens de transmission en rotation entre le moteur et le deuxième axe 44. Un agencement possible des deux actionneurs et des deux axes est illustré sur les figures, étant entendu que d'autres types d'agencement pourront être choisis par l'homme du métier. Dans les modes de réalisation représentés, l'élément de structure du châssis 46 prolonge sensiblement perpendiculairement l'extrémité inférieure du au moins un écran, en s'étendant en travers du premier axe de rotation du support. L'élément de structure du châssis comporte un alésage traversant, non visible sur les figures, apte à laisser passage au premier axe de rotation.The second actuator comprises, in a manner equivalent to the
Le deuxième axe 44 consiste ici en deux tiges qui sont chacune reliées à l'élément de structure du châssis 46 et au deuxième actionneur, et qui sont disposées diamétralement de part et d'autre de l'arbre formant le premier axe 14.The
Le deuxième actionneur est piloté en fonction d'une instruction de commande reçue en provenance de moyens de commande du module, de manière à faire pivoter autour du deuxième axe le châssis et de manière à déplacer de la sorte l'écran entre une position escamotée, dans laquelle l'écran n'est pas ou peu visible, et une position active, dans laquelle l'écran est en amont du support. On entend par « en amont » la position dans laquelle l'écran est disposé entre le support et l'avant du véhicule, vers lequel les fonctions d'éclairage et/ou de signalisation sont dirigées.The second actuator is controlled as a function of a control instruction received from control means of the module, so as to make the frame pivot around the second axis and so as to move the screen between a retracted position, in which the screen is not or hardly visible, and an active position, in which the screen is upstream of the support. The term “upstream” is understood to mean the position in which the screen is arranged between the support and the front of the vehicle, towards which the lighting and / or signaling functions are directed.
Dans le module selon l'invention, on peut prévoir une deuxième source de lumière 34, fixée et positionnée sur une carte de circuits imprimés, avantageusement la carte porteuse par ailleurs de la première source de lumière 22, apte à éclairer l'écran du châssis qui se trouve en position active en amont du support. On prévoit que la deuxième source de lumière soit disposée à une distance déterminée de la première source de lumière pour que l'écran du châssis, lorsqu'il est dans la position active en amont du support, soit disposé au droit de la deuxième source de lumière et puisse être illuminé par celle-ci. La deuxième source de lumière 34 est fixe par rapport à la première source de lumière 22 et elle reste fixe tandis que le support et/ou le châssis tourne. Elle peut être constituée d'une ou plusieurs diodes électroluminescentes (LED).In the module according to the invention, it is possible to provide a second
De la sorte, le premier écran ou le deuxième écran du châssis 18 se retrouvant dans cette position active en amont du support est disposé au droit de la deuxième source de lumière 34 de manière à pouvoir assurer ainsi une fonction de signalisation réglementaire si la deuxième source de lumière est allumée. La face d'entrée du châssis pour les rayons lumineux émis par cette deuxième source de lumière est formée par le bord supérieur de l'écran tandis que les faces de sortie sont aménagées dans le bord périphérique. On réalise ainsi une fonction d'éclairage et/ou de signalisation, distincte de celle réalisée par la réflexion des rayons lumineux de la première source de lumière. La partie périphérique de l'écran peut présenter un prisme orienté de telle ou telle façon pour procéder au renvoi de la lumière de la deuxième source 34 vers l'avant du véhicule pour remplir une fonction de signalisation et/ou vers l'arrière pour participer à la fonction d'aspect.In this way, the first screen or the second screen of the
La deuxième source de lumière 34 peut être allumée en plus de la première source de lumière 22 afin que la partie périphérique 38 du premier écran 28, en regard du réflecteur, émette de la lumière. Cela permet d'utiliser un premier écran du châssis 18 en complément du réflecteur 20. Un usage préféré des deux sources de lumière est de garder la deuxième source constamment allumée et d'augmenter l'intensité de la deuxième source de lumière si l'on souhaite exercer une fonction de signalisation, ou bien d'allumer la première source de lumière si l'on souhaite exercer une fonction d'éclairage.The second
Dans des variantes de réalisation non représentées, on pourra prévoir que le châssis ne présente qu'un seul écran, apte à prendre une position escamotée ou une position active en amont du support.In alternative embodiments not shown, provision may be made for the frame to have only one screen, capable of taking a retracted position or an active position upstream of the support.
On peut avantageusement selon l'invention piloter la rotation du châssis indépendamment de celle du support. Selon les conditions de circulation, de luminosité, et/ou les instructions du conducteur, le dispositif de commande envoie une instruction au deuxième actionneur pour mettre ou non en rotation le châssis. Avantageusement, lorsque le réflecteur est tourné vers l'avant du véhicule, on joue sur la rotation du châssis pour disposer devant le réflecteur alternativement un premier écran, neutre, ou un deuxième écran porteur d'éléments de découplage de la lumière, agencés ou non pour former des motifs par exemple. On pourra ainsi prévoir de faire tourner le châssis autour du support qui reste fixe et d'allumer la deuxième source de lumière lorsque c'est l'écran porteur de motifs en son centre qui est en regard de cette source pour réaliser un scénario d'accueil du conducteur avant son entrée dans le véhicule.According to the invention, the rotation of the frame can advantageously be controlled independently of that of the support. Depending on traffic conditions, lighting conditions, and / or the driver's instructions, the control device sends an instruction to the second actuator to set the chassis or not. Advantageously, when the reflector is turned towards the front of the vehicle, the rotation of the chassis is played on in order to place in front of the reflector alternately a first screen, neutral, or a second screen carrying decoupling elements of light, arranged or not to form patterns for example. Provision can thus be made to rotate the frame around the support which remains stationary and to turn on the second light source when it is the screen bearing patterns in its center which is opposite this source to produce a scenario of welcoming the driver before entering the vehicle.
Dans le cas d'un châssis à un écran, on peut piloter la présence ou non de l'écran en position active, c'est-à-dire devant la face du support tournée vers l'avant du véhicule, tandis que dans le cas d'un châssis à deux écrans, on peut ainsi choisir quel écran du châssis est en amont du réflecteur ou de la face d'aspect du support, selon la fonction d'éclairage et/ou de signalisation qu'on souhaite effectuer.In the case of a frame with one screen, it is possible to control whether or not the screen is in the active position, that is to say in front of the face of the support facing the front of the vehicle, while in the In the case of a frame with two screens, it is thus possible to choose which screen of the frame is upstream of the reflector or of the aspect face of the support, depending on the lighting and / or signaling function that is to be performed.
On va maintenant décrire le procédé de commande d'allumage et d'extinction de la source lumineuse pendant le déplacement en rotation des éléments du module.A description will now be given of the method for controlling the switching on and off of the light source during the rotational displacement of the elements of the module.
Le module est initialement dans une position de repos P1 (la position illustrée sur la
Lorsque les moyens de commande reçoivent une information I1 de déclenchement d'éclairage de nuit, soit par le conducteur, soit par des capteurs de visibilité par exemple, les moyens de commande génèrent une instruction de commande C1 au premier actionneur pour la mise en rotation du support associé, afin de faire pivoter de 180° le support et faire passer la face réfléchissante en position active P2, tournée vers l'avant du véhicule.When the control means receive information I1 for triggering night lighting, either by the driver or by visibility sensors for example, the control means generate a control instruction C1 to the first actuator for the rotation of the associated support, in order to rotate the support by 180 ° and move the reflecting face to the active position P2, facing the front of the vehicle.
Dans le même temps, les moyens de commande préparent une instruction de commande C2 à la première source de lumière pour forcer son allumage et permettre l'émission de rayons lumineux sur la face réfléchissante. Selon l'invention, les moyens de commande procèdent à un test T1 pour savoir si le support est arrivé dans une position fonctionnelle active. Tant que la réponse est négative, c'est-à-dire que la position angulaire du système optique formé par le support n'est pas comprise dans la plage de valeurs définie par le constructeur, l'instruction de commande d'allumage n'est pas envoyée à la première source lumineuse et celle-ci reste éteinte. Dès que la réponse est positive, c'est-à-dire que la position angulaire du système optique est comprise dans la plage de valeurs définie par le constructeur, l'instruction de commande C2 est envoyée et la première source de lumière est allumée et émet des rayons lumineux en direction de la face réfléchissante du support. Le fait d'avoir attendu que la position du réflecteur soit correcte avant de lancer l'allumage de la première source lumineuse permet d'éviter une réflexion des rayons aléatoires due à la rotation du réflecteur pénétrant dans le champ des rayons émis.At the same time, the control means prepare a control instruction C2 for the first light source to force its ignition and allow the emission of light rays on the reflecting face. According to the invention, the control means carry out a test T1 to find out whether the support has arrived in an active functional position. As long as the answer is negative, that is to say that the angular position of the optical system formed by the support is not included in the range of values defined by the manufacturer, the ignition control instruction n ' is not sent to the first light source and it remains off. As soon as the response is positive, i.e. the angular position of the optical system is within the range of values defined by the manufacturer, the control instruction C2 is sent and the first light source is turned on and emits light rays in the direction of the reflective face of the support. The fact of having waited for the position of the reflector to be correct before starting the ignition of the first light source makes it possible to avoid a reflection of the random rays due to the rotation of the reflector entering the field of the rays emitted.
A titre d'exemple, on prévoit une plage angulaire de +/- 2° autour de la position d'arrêt du réflecteur en position active, dans laquelle le constructeur estime que la rotation du réflecteur ne perturbe pas le trajet des rayons réfléchis en sortie du module, ou tout au moins que les perturbations qui en découlent sont acceptables pour respecter les conditions règlementaires de la fonction d'éclairage et/ou de signalisation effectuée.By way of example, an angular range of +/- 2 ° is provided around the stop position of the reflector in the active position, in which the manufacturer considers that the rotation of the reflector does not disturb the path of the rays reflected at the exit. module, or at least that the resulting disturbances are acceptable in order to comply with the regulatory conditions of the lighting and / or signaling function performed.
On comprend que, lorsque la fonction d'éclairage et/ou de signalisation assurée par le réflecteur 20 n'est pas utilisée, le module adopte, automatiquement ou sur la base d'une information de commande I2 reçue par les moyens de commande, une configuration différente dans laquelle le support 16 du module 10 est mis en rotation de 180° par rapport à la configuration de la
On vient de décrire un procédé de commande d'allumage d'une source lumineuse dans un module dans lequel aucun châssis n'est prévu mobile en rotation autour du support. On va décrire maintenant un procédé équivalent lorsque l'on prévoit un châssis comportant au moins un écran apte à venir se placer en regard du réflecteur du support, et au droit d'une seconde source lumineuse pour une fonction de signalisation complémentaire.We have just described a method of controlling the ignition of a light source in a module in which no frame is provided to be movable in rotation around the support. An equivalent method will now be described when a frame is provided comprising at least one screen capable of being placed opposite the reflector of the support, and in line with a second light source for a complementary signaling function.
Le support est commandé pour que le réflecteur se trouve en position active P3 (position visible sur la
Dans le même temps, les moyens de commande préparent une instruction C6 pour l'allumage de la deuxième source de lumière, de manière à permettre l'émission de rayons lumineux dans la nappe de l'écran disposé sous la deuxième source de lumière. Selon l'invention, les moyens de commande procèdent à un test T2 pour savoir si le système optique formé par le châssis est arrivé dans une position fonctionnelle active. Tant que la réponse est négative, c'est-à-dire que la position angulaire du châssis n'est pas comprise dans une deuxième plage de valeurs définie par le constructeur, l'instruction de commande d'allumage n'est pas envoyée à la première source lumineuse et celle-ci reste éteinte. On comprend que la deuxième plage de valeurs peut être la même que la première plage de valeurs, c'est-à-dire +/-2° dans l'exemple numérique donné ici à titre d'exemple non limitatif, ou bien qu'elle peut au contraire être différente, et préférentiellement plus grande que la première plage de valeurs. En effet, les perturbations que la rotation du châssis peut générer sur les rayons émis par la deuxième source de lumière peuvent être jugées réglementairement moins pénalisantes, car impactant une fonction de signalisation, que les perturbations générées par la rotation du réflecteur et du châssis associé sur les rayons émis par la première source de lumière qui impactent une fonction d'éclairage. Dès que la réponse au test T2 est positive, c'est-à-dire que la position angulaire du système optique est comprise dans la plage de valeurs définie par le constructeur, l'instruction de commande C6 est envoyée et la deuxième source de lumière est allumée et émet des rayons lumineux en direction du premier écran arrivé sous la deuxième source de lumière. Le fait d'avoir attendu que la position du châssis soit correcte avant de lancer l'allumage de la deuxième source lumineuse permet d'éviter une réflexion interne des rayons non homogène sur la nappe formant l'écran en position active, et d'éviter ainsi que seule une partie du bord périphérique de l'écran soit illuminée.At the same time, the control means prepare an instruction C6 for switching on the second light source, so as to allow the emission of light rays into the web of the screen placed under the second light source. According to the invention, the control means carry out a T2 test to find out whether the optical system formed by the chassis has arrived in an active functional position. As long as the response is negative, i.e. the angular position of the chassis is not within a second range of values defined by the manufacturer, the ignition control instruction is not sent to the first light source and it remains off. It will be understood that the second range of values may be the same as the first range of values, that is to say +/- 2 ° in the numerical example given here by way of nonlimiting example, or else that on the contrary, it can be different, and preferably larger than the first range of values. In fact, the disturbances that the rotation of the frame can generate on the rays emitted by the second light source can be considered legally less penalizing, because they impact a signaling function, than the disturbances generated by the rotation of the reflector and of the associated frame on the rays emitted by the first light source which impact a lighting function. As soon as the response to the T2 test is positive, i.e. the angular position of the optical system is within the range of values defined by the manufacturer, the command command C6 is sent and the second light source is on and emits light rays in the direction of the first screen arriving under the second light source. The fact of having waited for the position of the frame to be correct before starting the ignition of the second light source makes it possible to avoid non-uniform internal reflection of the rays on the web forming the screen in the active position, and to avoid as well as only a part of the peripheral edge of the screen is illuminated.
La fonction d'éclairage peut également être directionnelle, c'est-à-dire du type DBL (Dynamic Bending Light), grâce à l'actionneur 12 du module 10, qui peut commander une rotation du réflecteur de quelques degrés autour du premier axe. Lorsque le châssis est monté mobile en rotation de façon indépendante de la rotation du réflecteur, on commande la rotation de l'écran pour que là encore l'écran reste dans l'axe d'émission des rayons réfléchis par le réflecteur, pour qu'aucune dispersion des rayons ne résulte de cet éclairage directionnel. On comprend que dans ce cas, la première source lumineuse reste allumée même si l'angle de rotation du réflecteur est supérieur au seuil défini par la plage angulaire décrite ci-avant, puisque l'écran suit la rotation du support.The lighting function can also be directional, that is to say of the DBL type (Dynamic Bending Light), thanks to the
Il convient de noter que les faisceaux générés par le ou les modules qui ont été décrits plus haut peuvent constituer des faisceaux complémentaires à des faisceaux réglementaires générés par des dispositifs conventionnels, ou bien qu'ils peuvent constituer ensemble des faisceaux réglementaires d'éclairage et/ou de signalisation.It should be noted that the beams generated by the module (s) which have been described above can constitute beams complementary to regulatory beams generated by conventional devices, or else they can together constitute regulatory lighting and / or beams. or signaling.
La description qui précède explique clairement comment l'invention permet d'atteindre les objectifs qu'elle s'est fixés et notamment de proposer un module d'éclairage et/ou de signalisation dans lequel un châssis vient en complément d'un support rotatif d'un réflecteur apte à dévier les rayons lumineux émis par une source de lumière, pour apporter une complémentarité à la fonction de signalisation notamment, et de proposer un procédé de commande d'allumage d'une source de lumière associée pour éviter la diffusion de rayons lumineux non contrôlés et qui peuvent gêner les utilisateurs de la route en amont du véhicule. La caractéristique selon laquelle la source de lumière est éteinte préalablement au déplacement en rotation du système optique formé par le support et/ou le châssis, avant d'être rallumé que sous des conditions de position angulaire du système optique, permet de bénéficier des multiples combinaisons possibles dans les fonctions d'éclairage et/ou de signalisation du véhicule qu'offrent les rotations possibles du support de réflecteur et du châssis sans pour autant présenter le risque d'un éclairage ou d'une signalisation non réglementaire.The foregoing description clearly explains how the invention makes it possible to achieve the objectives that it has set for itself and in particular to provide a lighting and / or signaling module in which a frame complements a rotating support. 'a reflector capable of deflecting the light rays emitted by a light source, in order to complement the signaling function in particular, and to provide a method of controlling the ignition of an associated light source to avoid the diffusion of rays lights that are not controlled and that may disturb road users ahead of the vehicle. The characteristic according to which the light source is switched off prior to the rotational movement of the optical system formed by the support and / or the frame, before being switched on again only under conditions of angular position of the optical system, makes it possible to benefit from the multiple combinations possible in the lighting and / or signaling functions of the vehicle offered by the possible rotations of the reflector support and of the chassis without however presenting the risk of non-regulatory lighting or signaling.
On comprend que le projecteur d'un véhicule automobile, pour réaliser des fonctions d'éclairage et/ou de signalisation, peut comporter un ou plusieurs modules identiques à celui qui a été décrit, disposés en série dans un boîtier. Dans le cas d'une série de plusieurs modules, avantageusement trois, on pourra prévoir de rendre rotatif le support de chaque module et le châssis de chaque module par des actionneurs pouvant être pilotés de façon indépendante les uns des autres, pour assurer une plus grande souplesse dans les fonctions d'éclairage et/ou de signalisation, et chacun des modules sera associé à un dispositif de commande apte à réaliser les instructions de mise en œuvre du procédé de commande d'allumage selon l'invention, ce dispositif de commande pouvant être commun aux trois modules.It will be understood that the headlight of a motor vehicle, in order to perform lighting and / or signaling functions, may include one or more modules identical to that which has been described, arranged in series in a housing. In the case of a series of several modules, advantageously three, provision may be made to make the support of each module and the frame of each module rotatable by actuators which can be controlled independently of each other, to ensure greater flexibility in the lighting and / or signaling functions, and each of the modules will be associated with a control device capable of carrying out the instructions for implementing the ignition control method according to the invention, this control device being able to be common to the three modules.
Claims (9)
- Lighting and/or signalling module, notably for a motor vehicle, comprising optical means (20) for deflecting light rays emitted by a first light source (22), and a frame (18) comprising at least one screen (28, 30) capable of assuming a position on the path of the light rays deflected by said optical deflection means, characterized in that said optical deflection means and said frame are mounted to be rotationally mobile while the first light source remains fixed, and in that control means are capable of sending command instructions to actuators controlling, on the one hand, the rotation of said optical deflection means and of said frame and, on the other hand, the switching on and the switching off of said first light source.
- Module according to Claim 1, characterized in that said frame (18) is mounted to be rotationally mobile independently of the rotation of the optical deflection means (20).
- Module according to Claim 2, characterized in that the control means make it possible, upon a rotation of the optical deflection means (20), for said screen (28, 30) to remain in the axis of remission of the rays deflected by said optical deflection means (20).
- Lighting module according to one of Claims 1 to 3,
characterized in that the frame (18) comprises two screens (28, 30), said frame being mounted to be rotationally mobile to switch from a first extreme position in which a first screen (28) of the frame is disposed facing a second light source (34) that is distinct from and fixed with respect to said first light source (22), to a second extreme position in which the second screen of the frame (30) is disposed facing the second light source. - Module according to Claim 4, characterized in that at least one of the two screens (28, 30) bears optical means capable of deflecting the light rays passing through it when it is in active position upstream of the optical deflection means (20).
- Module according to the preceding claim,
characterized in that the optical means borne by a first of said two screens (28, 30) are different from the optical means borne by the second of said two screens. - Module according to any one of the preceding claims,
characterized in that said light sources (22, 34) consist of semiconductor sources. - Lighting and/or signalling headlight for a motor vehicle, comprising a housing and at least one lighting and/or signalling module, characterized in that the lighting and/or signalling module conforms to one of Claims 1 to 7.
- Headlight according to the preceding claim,
characterized in that it comprises at least two lighting and/or signalling modules.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1455507A FR3022328B1 (en) | 2014-06-16 | 2014-06-16 | ROTARY LIGHTING AND / OR SIGNALING MODULE |
Publications (2)
Publication Number | Publication Date |
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EP2957823A1 EP2957823A1 (en) | 2015-12-23 |
EP2957823B1 true EP2957823B1 (en) | 2021-01-06 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15171671.9A Active EP2957823B1 (en) | 2014-06-16 | 2015-06-11 | Rotary lighting and/or signalling module |
Country Status (4)
Country | Link |
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US (1) | US20150369439A1 (en) |
EP (1) | EP2957823B1 (en) |
CN (1) | CN105270253B (en) |
FR (1) | FR3022328B1 (en) |
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JP1523888S (en) * | 2014-08-28 | 2015-05-18 | ||
FR3056683B1 (en) * | 2016-09-26 | 2019-04-05 | Valeo Vision | LUMINOUS MODULE, IN PARTICULAR LIGHTING AND / OR SIGNALING FOR MOTOR VEHICLE |
CN112806794B (en) * | 2020-12-31 | 2022-06-21 | 江西服装学院 | Display device and dress display device |
CN114353027B (en) * | 2021-12-24 | 2024-08-06 | 广州市莱帝亚照明股份有限公司 | Mounting method of reversible LED lamp |
Citations (1)
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EP2902701A1 (en) * | 2014-02-04 | 2015-08-05 | Valeo Vision | Rotary lighting and/or signalling module with stationary light source |
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US4663696A (en) * | 1985-01-31 | 1987-05-05 | Koito Siesakusho Co., Ltd. | Dual purpose lamp assembly for use, for example, as a combined fog and cornering lamp on a motor vehicle |
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JP2002160581A (en) | 2000-11-24 | 2002-06-04 | Koito Mfg Co Ltd | Vehicular lighting tool and driving apparatus for rotation |
FR2828851B1 (en) | 2001-08-21 | 2003-12-12 | Valeo Vision | LIGHTING APPARATUS, PARTICULARLY A SPOTLIGHT, AUTOMOTIVE |
FR2857921B1 (en) * | 2003-07-24 | 2006-11-24 | Valeo Vision | FIXED LIGHT PROJECTOR OF TURN FOR MOTOR VEHICLE |
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JP2008004512A (en) * | 2006-06-26 | 2008-01-10 | Ichikoh Ind Ltd | Vehicle auxiliary headlight |
FR2915556B1 (en) * | 2007-04-25 | 2009-07-17 | Valeo Vision Sa | MOTOR VEHICLE PROJECTOR COMPRISING AN OPTICAL MODULE PROVIDED WITH A MOBILE MASK |
JP4997052B2 (en) * | 2007-10-01 | 2012-08-08 | 株式会社小糸製作所 | Vehicle headlamp |
JP2009301980A (en) * | 2008-06-17 | 2009-12-24 | Koito Mfg Co Ltd | Lamp unit |
JP5934508B2 (en) * | 2008-10-20 | 2016-06-15 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | LED lighting |
JP5029570B2 (en) * | 2008-10-30 | 2012-09-19 | 市光工業株式会社 | Vehicle headlamp |
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FR2970543A1 (en) * | 2011-01-14 | 2012-07-20 | Valeo Vision | OPTICALLY GUIDED LIGHTING OR SIGNALING DEVICE FOR MOTOR VEHICLE |
DE202011005617U1 (en) * | 2011-04-27 | 2011-06-27 | Automotive Lighting Reutlingen GmbH, 72762 | Light module of a motor vehicle headlight |
JP5815995B2 (en) * | 2011-06-08 | 2015-11-17 | 株式会社小糸製作所 | Optical unit for vehicular lamp |
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TWM485349U (en) * | 2013-12-12 | 2014-09-01 | Nan-Xin Jiang | Rocker arm type lamp color-changing device |
JP6161732B2 (en) * | 2014-01-30 | 2017-07-12 | 三菱電機株式会社 | Headlight device |
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2014
- 2014-06-16 FR FR1455507A patent/FR3022328B1/en active Active
-
2015
- 2015-06-11 EP EP15171671.9A patent/EP2957823B1/en active Active
- 2015-06-15 US US14/739,263 patent/US20150369439A1/en not_active Abandoned
- 2015-06-16 CN CN201510333872.4A patent/CN105270253B/en active Active
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EP2902701A1 (en) * | 2014-02-04 | 2015-08-05 | Valeo Vision | Rotary lighting and/or signalling module with stationary light source |
Also Published As
Publication number | Publication date |
---|---|
CN105270253A (en) | 2016-01-27 |
FR3022328B1 (en) | 2016-06-10 |
FR3022328A1 (en) | 2015-12-18 |
CN105270253B (en) | 2019-07-26 |
EP2957823A1 (en) | 2015-12-23 |
US20150369439A1 (en) | 2015-12-24 |
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