EP3234453A1 - Dispositif d'eclairage et/ou de signalisation comportant un guide de lumiere - Google Patents
Dispositif d'eclairage et/ou de signalisation comportant un guide de lumiereInfo
- Publication number
- EP3234453A1 EP3234453A1 EP15820498.2A EP15820498A EP3234453A1 EP 3234453 A1 EP3234453 A1 EP 3234453A1 EP 15820498 A EP15820498 A EP 15820498A EP 3234453 A1 EP3234453 A1 EP 3234453A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diode
- light
- guide
- plastic
- emitting diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—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]
-
- 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
- F21S41/192—Details of lamp holders, terminals or connectors
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/24—Light guides
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/29—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/19—Attachment of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/19—Attachment of light sources or lamp holders
- F21S43/195—Details of lamp holders, terminals or connectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/247—Light guides with a single light source being coupled into the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/251—Light guides the light guides being used to transmit light from remote light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/27—Attachment thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/0015—Fastening arrangements intended to retain light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/045—Light guides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/0006—Coupling light into the fibre
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
- G02B6/0008—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type the light being emitted at the end of the fibre
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Definitions
- the present invention relates to a lighting and / or signaling device comprising a light-emitting diode and a light guide adapted to conduct light from the diode. It relates more particularly to means for fixing the diode with respect to the light guide.
- Lighting modules are thus known for a motor vehicle comprising a housing fixed to the vehicle structure and closed by a projection window, a signaling and / or light-emitting diode lighting device being housed inside the module. .
- This type of signaling and / or lighting device comprises an optical guide disposed opposite the light emitting diodes to achieve the desired guidance of the light.
- Means for fixing the light guide with respect to the light-emitting diode are to be provided so that, on the one hand, the required distance between these two components is respected, and on the other hand the diode is correctly centered with respect to the face of the light-emitting diode. entrance of the light guide. It is indeed necessary that all the rays emitted by the light emitting diode enter the light guide by breaking, so as to limit the loss of efficiency of the lighting and to avoid oversizing the diodes to obtain a desired photometric performance .
- tubular light tubes are disclosed at the end of which a light-emitting diode is fixed, so that all the light rays coming from the diode enter by refraction into the light-emitting diode.
- the light guide to an exit face determined so that the rays come out of the projector at the desired inclination.
- embodiments are disclosed in which the tubular light guide is attached to a a support piece which has, on the one hand, means for receiving the guide and, on the other hand, means for receiving a printed circuit board, on which are arranged both a light-emitting diode and electronic circuits suitable for supplying electricity. current the light emitting diode.
- the stacking of these three parts generates a congestion that can be detrimental in an area where, for aesthetic issues or issues of regulatory standards, the concept of compactness is important.
- the present invention proposes a lighting and / or signaling device as described above, in which the fixation of the light guide with respect to the position of the light-emitting diode is optimized.
- the invention proposes a device comprising a light-emitting diode and a light guide adapted to conduct light coming from said diode, as well as means for fixing the diode with respect to one end of the light guide to ensure the position of a light-emitting diode.
- input face of the guide facing the diode characterized in that the light guide carries male fastening means adapted to cooperate with female fastening means carried by a plastic part carrying the light emitting diode and electrical circuits made directly on said plastic part in the immediate vicinity of the diode.
- MID technology plastic Interconnect Device
- the plastic part which also carries female means to cooperate with a male end integral with the guide. from light.
- the plastic part does not carry the diode and its power circuits on a rigid or flexible circuit board but directly on its surface.
- the light emitting diode is then diode type on a base (also called submount). It can be seen that the number of parts for setting up the light guide in front of the diode is in fact reduced, which reduces the rib chains and avoids a corresponding dispersion of the light flow. It is not necessary to oversize the diode to compensate for this dispersion.
- Hot Embossing it is expected that the plastic part carries the diode and corrective tracks in a flat central portion.
- the presence of an intermediate piece has been replaced by a modified light guide and a modified electrical circuitry without, however, complicating the design and manufacture of the light guide since only a male part, serving to position the the female part of the clip, is necessary protruding from the guide.
- This ensures the positioning function without degrading the optical performance of the light guide and without complicating its manufacture, the difficult demolding of parts of the prior art can penalize their optical function.
- the male part of the fastening means is formed by a plate disposed at the end of the light guide and protruding laterally of the guide to form prominent means adapted to cooperate with the female fastening means carried by the plastic part.
- the plate is made of a transparent material that can guide the light rays from the light-emitting diode.
- this plate forming the male part of the fixing means is integral with the light guide;
- the plate forming the male part of the fixing means has a variable thickness, in particular by the fact that the thickness is reduced in the center of this plate, right of the light guide and the diode.
- the male part can advantageously integrate a collimation structure like Fresnel lens;
- the plastic support part of the diode has a planar central part for receiving the diode and electrical circuits as well as parts peripherals which protrude around said flat central portion and which form said female fastening means;
- the diode support plastic part is obtained by hot stamping, incorporating into the plastic material a metal sheet on which are formed electrical circuits for supply and control of the light emitting diode.
- a greater thickness of metal is provided centered around the light emitting diode;
- the support piece can also integrate the connector function, either by a card edge connector technique, or with any type of connector inserted in force, with the electrical contacts of the connector electrically connected, by a conductive glue or a solder paste for example, the electrical circuits made on the plastic material of said support piece;
- the diode support plastic part is made of conductive polymer material, that is to say with a conductivity greater than 1 Wm "1 .k " 1 .
- the material may be a polyamide, polypropylene, or polystyrene, loaded with thermally conductive fibers;
- the plastic support piece may comprise a through-hole adapted to receive a diode mounted so that the fastening elements and the connection of the diode are attached to one face of the support piece opposite to the direction of emission of the rays; luminous output of the diode;
- the invention also relates to a motor vehicle comprising a lighting and / or signaling module, in which at least one light guide and a light emitting diode are housed for light emission and guiding, characterized in that the guide and the diode are fixed relative to each other in a device as described above.
- the female part of the fastening means is made by a plastic part that is reported on the module or this female part is directly made on the housing of a lighting module and / or signaling of a motor vehicle.
- FIG. 1 is a perspective view of a lighting and / or signaling device according to the invention, comprising in particular a tubular light guide and means for fixing a light-emitting diode disposed at one end of this guide. ;
- FIGS. 2 and 3 are perspective views of the male and female parts of the device illustrated in FIG. 1, according to a first embodiment of the invention
- FIGS. 4 and 5 are perspective views and side section of the assembly of the two parts shown in Figures 2 and 3;
- Figures 6, 7 and 8 are views similar to Figures 2, 3 and 4 for a second embodiment of the invention.
- the lighting and / or signaling device comprises a tubular light guide 2, at a proximal end 4 which are arranged means 6 for fixing a light source.
- This device is particularly adapted to be placed in the housing of a lighting and / or signaling module of a motor vehicle, the light emitted by the light source being received and driven by the light guide from a surface of the light source.
- input 8 opposite the source to an exit face formed by a surface of revolution of the tubular guide.
- the guide comprises a reflection face 10 of the current rays in the guide, comprising for example prisms that return the rays to the exit face at an incident angle allowing their refraction out of the guide, and out of the module to perform the desired lighting and / or signaling function.
- the light source is formed by a light-emitting diode 12, which is carried by a plastic part 14 also carrying electrical circuits 16 for supplying and controlling the diode, represented for example by a bold line in FIG. 5, and possibly covered with protective care by a varnish.
- the support member 14 and the guide 2 are adapted to cooperate to ensure the relative position of the diode relative to the entrance face of the light guide. More specifically, they each have suitable shapes to perform on the one hand guide in position of the guide in the plastic part to an active position in which the input face of the guide is located in line with the diode, and to achieve on the other hand the locking of the guide in this active position.
- the light guide has male fastening means adapted to cooperate with corresponding female fastening means carried by the plastic diode support piece, so that it is the guide which is inserted and blocked in position in the plastic part.
- the light guide 2 has at its proximal end 4 a plate 18 extending in transverse projection tubular portion of the guide.
- the guide extends along a predetermined curvilinear axis XX ', and the plate extends transversely to this predetermined direction.
- the guide and the plate are made in one piece, in transparent polymer, of the polycarbonate (PC) or polymethyl methacrylate (PMMA) type, or any other suitable polymer, that is to say in a transparent material which can be crossed by the light rays emitted by the diode.
- the plate protrudes laterally from the guide and thus forms prominent means which will be detailed later as the male fastening means in the description of two embodiments.
- the corresponding female fixing means are carried by the plastic part and peripheral parts 20 of this plastic part, which rise projecting on either side of a central part.
- plane 22 which carries the diode 12 and the electrical circuits 16 centered around the diode.
- the plastic support piece also comprises a housing 24 adapted to receive at least partly a connector 25, visible in Figures 7 and 8, which is connected to the electrical circuit made in the plastic material of the support piece.
- a first embodiment of the means for fixing the light guide with respect to the light-emitting diode will now be described with reference to FIGS. 2 to 5.
- the plate forms a flange at the end of the light guide.
- the flange has a diameter greater than the diameter of the tube so that, as previously described, the plate protrudes laterally from the tube.
- two notches 26 are arranged diametrically opposite.
- the diode support piece has the shape of a housing 28 with a bottom wall having the flat central portion 22 and peripheral portions 20 which protrude around this wall. background.
- peripheral portions comprise two lateral longitudinal walls 30, which form transverse stops for the guide plate and which thus guide longitudinally the insertion of the plate, as well as a transverse end wall 32. At the opposite of this wall transversal, the absence of peripheral parts allows the insertion of the plate in the support part.
- the longitudinal walls have a sectional variation between the thicker base and the free end, opposite the bottom wall, finer.
- the thicknesses are determined in such a way that the distance between the bases of the longitudinal walls is smaller than the diameter of the plate at the end of the guide, preventing insertion at this level of the light guide. This avoids insertion of the guide to hit the diode.
- the guide is inserted above and the shoulders of the longitudinal walls form a vertical guide edge 34 on which can rest in support of the end plate of the guide. It can be seen that the side walls and the shoulder form a guiding path for this plate.
- Two posts 36 protrude outwardly from the side walls, towards the inside of the diode support piece, so as to narrow the passage for the plate.
- the user must force on the plate during insertion to allow passage to the plate, deforming the plastic part by spacing the side walls.
- the light guide is in the active position when the lateral uprights penetrate the notches formed in the plate. It is understood that, so that the user does not go beyond this active position during the force insertion of the guide, the plate abuts against the transverse end wall.
- This transverse end wall comprises substantially at its center a vertical abutment means 38 protruding from the wall towards the inside of the support piece, and disposed at a distance from the bottom wall slightly greater than the addition of the height of the shoulder relative to the bottom wall and the thickness of the plate extending the light guide.
- the plate, and the associated guide are thus locked in position, on the one hand in the plane of the bottom wall by the cooperation of the uprights of the support piece and the notches of the plate, and on the other hand in the third dimension, perpendicular to the bottom wall, by blocking the plate between firstly the stop means carried by the end wall and secondly the shoulders of the side walls.
- FIGS. 6 to 8 A second embodiment illustrated in FIGS. 6 to 8 is now described.
- the lighting and / or signaling device according to this second embodiment has a structure close to that of the device described above.
- the light guide 2 has at its end a plate 18 forming male fastening means adapted to cooperate with female fastening means carried by a diode support plastic part 14, on which electrical circuits for supplying and controlling the diode are made, by way of nonlimiting example at a flat central portion of the part 22.
- devices differ on structural details such as the shape of the plate and the shape of the support piece.
- the plate has a trapezoidal shape disposed at the end of the light guide.
- the small base of the trapezium forms a tenon pointing towards the outside of the guide.
- the side walls 42, connecting the bases of the trapezium, are machined near the large base to form stop walls 44 when the guide is in position in the diode support part.
- the diode support part also has the shape of a housing 28 with peripheral parts, among which two lateral longitudinal walls 30 and a transverse end wall 32.
- the transverse end wall has a central opening 46 of shape adapted to allow passage to the tenon of the plate extending the light guide.
- a type of tenon / mortise cooperation that allows mounting of the guide in the diode support piece with polarizing means to ensure the correct orientation of the exit face 10 of the light guide.
- the edges of the wall defining the central opening form vertical abutment means to prevent the release of the plate relative to the workpiece perpendicular to the plane defined by the bottom wall.
- stop means specific to this embodiment are provided to define the active position of the light guide. In the direction of insertion, the plate abuts against the transverse end wall.
- the abutment walls 44 formed on the side walls of the plate cooperate with shoulders 48 arranged at the free end of the longitudinal side walls.
- the user must force on the plate during insertion to allow passage to the plate, deforming the plastic part by spacing the side walls.
- the light guide is in the active position when the side walls of the plate have exceeded the shoulders arranged at the free end of the longitudinal side walls.
- the plate extending the light guide and the receiving housing of this plate, since the light guide carries means of male fasteners adapted to cooperate with female fastening means carried by a plastic part carrying the light emitting diode and electrical circuits, directly made on the plastic material of the guide support piece.
- the thickness of this plate is variable, in particular in that a smaller thickness is provided in the direct extension of the tubular guide.
- this smaller thickness is at the right of the diode so that the light rays coming from the diode to enter by refraction in the tubular guide have a less significant thickness of transparent material to pass through.
- the diode support plastic part either by a housing that is then fixed on the lighting module and / or signaling (as is the case in the embodiments illustrated in the figures), or directly in the thickness of the housing forming the lighting module and / or signaling in which the device according to the invention is installed.
- Another variant consists of a specific arrangement of the diode, mounted according to a so-called “reverse-led” technique, in which the carrier plate carrying electrical circuits has a hole enabling the diode to be placed in position through this hole, the dome of the diode being oriented on the side of a first face of the support plate while the electrical contacts of the diode are arranged on the side of the opposite face of the support plate, this opposite face carrying the conductive tracks to be connected to the diode.
- MID molded interconnected device
- the hot stamping technique used here consists of producing a metal sheet, depositing this sheet on the part of the support piece intended to carry the conductive tracks, if necessary with a heat activatable glue placed between the sheet and the support piece, and in a hot stamping step of the plastic part to press the sheet thereon.
- a preliminary step is to give the sheet the desired thickness of metal, and possibly varying thicknesses.
- a hot press is applied against the sheet, under temperature conditions adapted to plastically deform the material of the support piece.
- the face of the press brought into contact with the metal sheet has ribs which project from this face in a corresponding arrangement to the arrangement of the conductive tracks that it is desired to integrate on the support plate.
- the hot deformation of the support plate generates the formation of housing shapes complementary to those of the ribs projecting from the press.
- the metal layers are pushed into these housings and the integrated metal in the volume of the support plate forms conductive tracks.
- Thickness means a thickness greater than 20 microns, preferably between 20 and 200 microns.
- the device according to the invention finds particular application in a lighting module and / or signaling of a motor vehicle. It can be implanted in the vehicle for indoor or outdoor lighting.
- This device has the advantage of an assembly of the guide and the diode support in which a male fixing part is carried by the guide, so that it is easier to obtain by molding than if it bore female parts, hardly extrudable.
- the support piece is advantageously a molded interconnected device, so as to make possible the dual function of the support part, namely the support of the electrical circuits and the support of the diode.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Planar Illumination Modules (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1462953A FR3030685B1 (fr) | 2014-12-19 | 2014-12-19 | Dispositif d'eclairage et/ou de signalisation comportant un guide de lumiere |
PCT/EP2015/080554 WO2016097322A1 (fr) | 2014-12-19 | 2015-12-18 | Dispositif d'eclairage et/ou de signalisation comportant un guide de lumiere |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3234453A1 true EP3234453A1 (fr) | 2017-10-25 |
Family
ID=52684455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15820498.2A Withdrawn EP3234453A1 (fr) | 2014-12-19 | 2015-12-18 | Dispositif d'eclairage et/ou de signalisation comportant un guide de lumiere |
Country Status (5)
Country | Link |
---|---|
US (1) | US20170363267A1 (fr) |
EP (1) | EP3234453A1 (fr) |
CN (1) | CN107110459A (fr) |
FR (1) | FR3030685B1 (fr) |
WO (1) | WO2016097322A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102409212B1 (ko) * | 2016-10-14 | 2022-06-15 | 루미리즈 홀딩 비.브이. | 가요성 조명 스트립을 포함하는 차량등 어셈블리 |
FR3063049B1 (fr) * | 2017-02-23 | 2021-06-25 | Valeo Vision | Module lumineux pour vehicule automobile |
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- 2015-12-18 EP EP15820498.2A patent/EP3234453A1/fr not_active Withdrawn
- 2015-12-18 US US15/536,721 patent/US20170363267A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
---|---|
FR3030685A1 (fr) | 2016-06-24 |
CN107110459A (zh) | 2017-08-29 |
WO2016097322A1 (fr) | 2016-06-23 |
US20170363267A1 (en) | 2017-12-21 |
FR3030685B1 (fr) | 2019-11-29 |
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