WO2024061835A1 - Vehicle lighting device configured to perform a third brake light function - Google Patents

Vehicle lighting device configured to perform a third brake light function Download PDF

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Publication number
WO2024061835A1
WO2024061835A1 PCT/EP2023/075667 EP2023075667W WO2024061835A1 WO 2024061835 A1 WO2024061835 A1 WO 2024061835A1 EP 2023075667 W EP2023075667 W EP 2023075667W WO 2024061835 A1 WO2024061835 A1 WO 2024061835A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
optical module
primary
light device
pattern
Prior art date
Application number
PCT/EP2023/075667
Other languages
French (fr)
Inventor
Cedric Gillet
Christophe Valois
Richard GELOEN
Alexandre Franc
Original Assignee
Valeo Vision
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Vision filed Critical Valeo Vision
Publication of WO2024061835A1 publication Critical patent/WO2024061835A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/30—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces
    • B60Q1/302—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating rear of vehicle, e.g. by means of reflecting surfaces mounted in the vicinity, e.g. in the middle, of a rear window
    • 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
    • F21S43/20—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
    • F21S43/239—Light guides characterised by the shape of the light guide plate-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
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • 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
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • 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
    • F21S43/255—Filters
    • 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
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/35—Brake lights
    • 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
    • F21W2103/00—Exterior vehicle lighting devices for signalling purposes
    • F21W2103/60—Projection of signs from lighting devices, e.g. symbols or information being projected onto the road

Definitions

  • the present invention relates to a vehicle lighting device configured to perform a high-mounted brake light function. It finds a particular but non-limiting application in motor vehicles.
  • a lighting device for a vehicle configured to perform a raised brake light function comprises: - a box configured to accommodate optical modules, - a primary optical module configured to perform the raised brake light function, - a secondary optical module configured to perform a function of projecting a light pattern onto a reflection surface, - an exit window including a pattern.
  • the primary optical module includes: - electronic support, - a plurality of light sources (approximately eighteen) arranged on the electronic support and configured to emit light rays, - a plurality of reflectors on which the light rays of the light sources are reflected to form a primary light beam which exits towards the outside of the motor vehicle.
  • the secondary optical module is configured to perform a function of projecting a light pattern onto an output lens, said light pattern reflecting on a reflection surface.
  • the secondary optical module includes: - another electronic medium, - a plurality of light sources (approximately fifty-four) arranged on the electronic support and configured to emit light rays to form a secondary light beam which passes through an exit glass to form said light pattern which is reflected on the reflection surface.
  • a disadvantage of this state of the art is that the assembly formed by the housing, the optical module support, the primary optical module and the secondary optical module is bulky in the vertical dimension.
  • the present invention aims to propose a lighting device for a vehicle configured to perform a raised brake light function which makes it possible to resolve the mentioned drawback.
  • the invention proposes a lighting device for a vehicle configured to perform a raised brake light function and comprising: - a box configured to accommodate optical modules, - a primary optical module configured to perform the raised brake light function, - a secondary optical module configured to perform a function of projecting a light pattern onto a reflection surface, - an exit window comprising a pattern and configured to close said housing, characterized in that: - said primary optical module is a flat light guide, and - said secondary optical module is a flat light guide.
  • said light device may also include one or more additional characteristics taken alone or in all technically possible combinations, among the following.
  • said reflection surface is a rear window of said vehicle.
  • said secondary optical module comprises prisms or screen printing.
  • said light device comprises at least one primary light source configured to generate primary light rays which cooperate with said primary optical module so as to create a primary light beam along an axis of emission of said light rays primaries.
  • said light device comprises at least one secondary light source configured to generate secondary light rays which cooperate with said secondary optical module so as to create a secondary light beam in a direction transverse to an axis of emission of said secondary light rays.
  • said at least one primary light source and said at least one secondary light source are respectively arranged on opposite faces of the same electronic support disposed between said primary optical module and said secondary optical module.
  • said at least one primary light source and said at least one secondary light source can be activated independently of each other.
  • said outlet glass comprises a first part integrating said pattern and a second part arranged on either side of the first part configured to make a junction with said housing.
  • said second part of said closing glass is opaque.
  • said light device is a raised brake light.
  • the light device comprises more than two primary light sources.
  • the light device comprises more than two secondary light sources.
  • said at least one primary light source and said at least one secondary light source are semiconductor light sources.
  • said primary optical module comprises an end comprising a face facing which at least one primary light source is arranged.
  • said secondary optical module comprises an end comprising a face facing which at least one secondary light source is arranged.
  • the first central part of the outlet glass is transparent.
  • the first central part of the outlet glass is semi-transparent.
  • the first central part of the outlet glass is diffusing.
  • FIG. 1 illustrates a diagram of a lighting device for a vehicle configured to perform a high-mounted brake light function, said lighting device comprising a housing, a primary optical module which is a flat light guide, a secondary optical module which is a light guide flat, and an outlet glass, according to a non-limiting embodiment of the invention
  • FIG. 1 illustrates a schematic longitudinal view of a rear spoiler of a vehicle comprising said light device of the , according to a non-limiting embodiment
  • FIG. 1 illustrates a schematic cross-sectional view of the light device of the , according to a non-limiting embodiment.
  • the lighting device 1 for a vehicle is described with reference to Figures 1 to 3.
  • the vehicle 2 is a motor vehicle.
  • motor vehicle we mean any type of motorized vehicle. This embodiment is taken as a non-limiting example in the remainder of the description. In the remainder of the description, the vehicle 2 is thus otherwise called motor vehicle 2.
  • the vehicle axis Ox is represented on the .
  • the motor vehicle 2 comprises said light device 1.
  • the light device 1 is configured to achieve: - an f1 raised brake light function (called CHMSL for “Center High Mounted Spot Light”), otherwise called third brake light, and - a projection function f2 of a light pattern m1 (illustrated on the ) on a reflection surface 20 (illustrated in Figures 2 to 3) of said motor vehicle 2.
  • CHMSL Center High Mounted Spot Light
  • a projection function f2 of a light pattern m1 illustrated on the
  • the reflection surface 20 is the rear window of said motor vehicle 2, thus called rear window 20 in the following description.
  • Said light device 1 is thus a raised brake light which integrates an additional function, the f2 function.
  • the light device 1 is arranged in a rear spoiler 21, otherwise called spoiler 21 (illustrated in Figures 1 and 2) of the motor vehicle 2 which is installed on the rear window 20 of the motor vehicle 2.
  • the spoiler 21 extends substantially perpendicular to the vehicle axis Ox in a direction Oy.
  • This non-limiting embodiment is taken as a non-limiting example in the remainder of the description.
  • the light device 1 includes: - a box 10, - a primary optical module 12 configured to perform the function of raised brake light f1, - a secondary optical module 13 configured to carry out the projection function f2 of a light pattern m1 on the reflection surface 20, - an exit window 14.
  • the light device 1 further comprises: - at least one primary light source 120, otherwise called light source 120, - at least one secondary light source 130, otherwise called light source 130.
  • the light device 1 comprises more than two primary light sources 120. In a non-limiting alternative embodiment, it comprises between 20 and 60 primary light sources 120. In a non-limiting example, it comprises 30 primary light sources 120. In a non-limiting embodiment, the light device 1 comprises more than two secondary light sources 130. In a non-limiting alternative embodiment, it comprises between 20 and 60 secondary light sources 130. In a non-limiting embodiment, it comprises between 20 and 60 secondary light sources 130. a non-limiting example, it comprises 30 secondary light sources 130. These non-limiting embodiments are taken as non-limiting examples in the remainder of the description.
  • the housing 10 is configured to accommodate the primary optical module 12, the secondary optical module 13, and the primary light sources 120 and the secondary light sources 130.
  • the primary optical module 12 is a flat light guide, as illustrated in the sectional view of the which illustrates a section of said primary optical module 12. This makes it possible to return the light along the Oz axis. It is otherwise called primary light guide 12, or light guide 12.
  • the primary optical module 12 extends longitudinally in the housing 10 substantially along the axis Oy along the spoiler 21 of the motor vehicle 2 when the light device 1 is installed in said spoiler 21.
  • the primary optical module 12 cooperates with the primary light sources 120. As illustrated in Figures 1 to 3, the primary optical module 12 together the primary light sources 120 is configured to generate a beam primary light fx1 in a first direction d1 substantially horizontal (ie substantially parallel to the vehicle axis Ox) towards the outside of the motor vehicle 1 to perform the function of raised brake light f1.
  • the housing 10 includes a window 101 of transparent material configured to let the primary light beam fx1 pass.
  • the primary optical module 12 comprises an end 12.1 comprising a face 12.10 facing which the primary light sources 120 are arranged. For reasons of clarity on the , only a primary light source 120 has been illustrated. In non-limiting embodiments not illustrated, the primary optical module 12 is fixed to the housing 10 by screwing, stapling or clipping.
  • the secondary optical module 13 is a flat light guide, as illustrated in the sectional view of the which illustrates a section of said secondary optical module 13. It is otherwise called secondary light guide 13, or light guide 13.
  • the secondary optical module 13 extends longitudinally in the housing 10 substantially along the axis Oy along the spoiler 21 of the motor vehicle 2 when the light device 1 is installed in said spoiler 21.
  • the secondary optical module 13 cooperates with the secondary light sources 130.
  • the secondary optical module 13 is configured to generate a secondary light beam fx2 in a second direction d2 substantially vertical along an axis Oz (ie substantially perpendicular to the vehicle axis Ox) downwards to carry out the projection function f2 of a light pattern m1.
  • the secondary light beam f2 passes through the exit glass 14 comprising a pattern m0 (illustrated on the ) so as to create the m1 light pattern (illustrated on the ) which is reflected on the rear window 20 of the motor vehicle 2.
  • the reflection surface 20, here the rear window makes it possible to create a holographic projection visible from the outside of the motor vehicle 2 but not from the inside of the motor vehicle 2.
  • the holographic projection on the rear window 20 thus does not disturb the driver.
  • the secondary optical module 13 comprises an end 13.1 comprising a face 13.10 facing which the secondary light sources 130 are arranged. For reasons of clarity on the , only a secondary light source 130 has been illustrated.
  • the secondary optical module 13 comprises prisms or screen printing.
  • the secondary optical module 13 is fixed to the housing 10 by screwing, stapling or clipping.
  • the secondary optical module 13 is different from the primary optical module 12. As illustrated in the , in this case, the light guide 13 is placed behind the light guide 13 in the depth of the housing 10, namely in the direction of the vehicle axis Ox.
  • the primary light sources 120 and the secondary light sources 130 are semiconductor light sources.
  • the semiconductor light sources are part of a light-emitting diode or a laser diode.
  • light-emitting diode we mean any type of light-emitting diode, whether in non-limiting examples of LEDs (“Light Emitting Diode” in English), OLEDs (“Organic LED” in English), AMOLEDs (“Active-Matrix”). -Organic LED” in English), or even FOLEDs (“Flexible OLED” in English).
  • the light device 1 further comprises an electronic support 16, otherwise called PCBA card (“Printed Circuit Board Assembly” in English) configured to accommodate the primary light sources 120 and the secondary light sources 130 It comprises two opposite faces 16.1 and 16.2. As illustrated on the , the primary light sources 120 and the secondary light sources 130 are arranged on the electronic support 16 and respectively on each of its opposite faces 16.1, 16.2. As illustrated on the , the light guide 12 and the light guide 13 are arranged on either side of the electronic support 16. They thus extend into the depth of the housing 10, the secondary optical module 13 being located behind the primary optical module 12 and therefore further from the exit window 14 in the direction of the vehicle axis Ox. The electronic support 16 is thus arranged between the primary optical module 12 and the secondary optical module 13 in the direction of the vehicle axis Ox. This electronic support 16 makes it possible to have primary light sources 12 and secondary light sources 13 in a compact environment in z. In non-limiting embodiments not illustrated, the electronic support 16 is fixed to the housing 10 by screwing, stapling, clipping.
  • PCBA card Print Circuit Board Assembly
  • the primary light sources 120 and the secondary light sources 130 can be activated independently of each other. This makes it possible to control the high-mounted brake light function f1 and the projection function f2 of a light pattern m1 independently of each other.
  • the primary light sources 120 emit primary light rays r1 (illustrated in the and the ), otherwise called light rays r1, which cooperate with the light guide 12 so as to create a primary light beam fx1 (illustrated in Figures 1 to 3) along an emission axis ax1 of said primary light rays r1 to carry out the function high-mounted brake light f1.
  • the secondary light sources 130 emit secondary light rays r2 (illustrated in the and the ), otherwise called light rays r2, which cooperate with the light guide 13 so as to create the secondary light beam fx2 (illustrated in Figures 1 to 3) in a direction transverse to an axis of emission ax2 of said secondary light rays r2 to carry out the projection function f2 of the light pattern m1.
  • the outlet glass 14 is configured to close the housing 10. It includes: - a first central part 140 integrating said pattern m0, otherwise called window 140, - a second part 141 arranged on either side of the central part 140 which acts as a mask.
  • the first central part 140 of the exit window 14 is transparent, i.e. it lets light pass through, or is diffusing (it allows the light rays r2 to be diffused).
  • the central part 140 is crossed by the secondary light beam fx2 so as to create a light pattern m1 as illustrated in the .
  • the light pattern m1 is thus visible through this central part 140 but also thanks to its downward reflection along the axis Oz on the reflection surface 20, here on the rear window of the motor vehicle 20.
  • the pattern m0 is a logo of a manufacturer.
  • the secondary light sources 130 thus illuminate the logo m0 which is upside down .
  • the second part 141, the outlet window 14, is configured to make the connection, otherwise called a junction, between the outlet window 14 and the housing 10.
  • the second part 141 of the outlet glass 14 is made of PC (polycarbonate).
  • the PC provides a robust external face, which does not break unlike PMMA (poly-methyl methacrylate).
  • the second part 141 of the outlet glass 14 is made of PMMA.
  • the first part 140 is made of ABS (“acrylonitrile butadiene styrene”), vinyl, PET (“Polyethylene Terephthalate”), PMMA, or PC.
  • the pattern m0 of the outlet glass 14 is produced according to different non-limiting embodiments presented below.
  • the pattern m0 is formed by bi-injection.
  • the outlet glass 14 is bi-injected. This makes it possible to create the central part 140 with the pattern m0 and the second part 141.
  • the pattern m0 is formed using a screen-printed or printed film.
  • the exit window 14 includes a window on which the screen-printed or printed film is assembled (i.e. placed and glued).
  • the film is made of ABS (“acrylonitrile butadiene styrene”), vinyl, PET (“Polyethylene Terephthalate”), PMMA or PC.
  • the outlet window 14 is completely transparent.
  • the outlet window 14 is bi-material with a first transparent part 140 and a second opaque part 141. This allows to manage light leaks at the junction with the housing 10, the outlet glass junction 14 – housing 10 being made via the opaque part 141.
  • the pattern m0 is formed by a film overmolded in the outlet glass 14. There is no more assembly.
  • the outlet glass 14 is completely transparent.
  • the outlet glass 14 is bi-material with a first transparent part 140 and a second opaque part 141.
  • the film is made of ABS (“acrylonitrile butadiene styrene”), vinyl, PET (“Polyethylene Terephthalate”), PMMA or PC.
  • the film is overmolded using an IML (“In Mold Labeling”) process.
  • IML In Mold Labeling
  • the IML process includes the steps of forming and cutting a screen-printed film, placing it in a mold where a resin is injected.
  • the IML process being known to those skilled in the art, it is not described in further detail here.
  • the film is overmolded using an IMD process (“In Mold Decoration” in English).
  • IMD process includes the steps of unrolling a screen-printed film in a mold, forming it, and injecting a resin into the mold.
  • the IMD process being known to those skilled in the art, it is not described in further detail here.
  • the pattern m0 is formed by a laser screen printing process.
  • the screen printing process is laser ablation (called “laser ablation”).
  • An opaque paint is applied to the exit glass 14, then an ablation of the pattern m0 by laser is carried out.
  • the outlet glass 14 is transparent.
  • the screen printing process is laser engraving (called “laser etching”).
  • Opaque paint is applied to a transparent or translucent film. The film is applied to the exit glass 14. Then, the pattern m0 is engraved by laser on the film.
  • the pattern m0 is formed by a hot stamping process (called “hot stamping”).
  • hot stamping A die is mounted and heated on the exit glass 14.
  • a plastic film with a hot-melt layer and opaque ink is inserted between the die and the outlet glass 14, the die exerting pressure on the film. When the matrix heats up, the opaque ink is transferred to the protrusions of the outlet glass 14 which forms a relief of the pattern m0.
  • the pattern m0 is formed by a pad printing process (called “tampo-print”).
  • stampo-print A stamp which includes the pattern m0 in relief is dipped in ink and is applied to the exit glass 14 by exerting pressure on it. The pattern m0 is thus transferred to the output glass 14.
  • a single primary light source 120 is associated with the primary optical module 12.
  • a single secondary light source 130 is associated with the secondary optical module. 13.
  • the secondary optical module 13 and the primary optical module 12 are combined. They thus form a single flat light guide. In this case, there are junctions between the secondary optical module 13 and the primary optical module 12 all along the electronic support 16.
  • the first central part 140 of the exit glass 14 is semi-transparent.
  • the invention described has in particular the following advantages: - it makes it possible to integrate in the same light device 1 the raised brake light function f1 and the projection function f2 while reducing the vertical bulk of the light device 1 due to the removal of the reflectors of the state of the prior art and their replacement by a flat light guide, - it makes it possible to respect the defined height of a rear raised brake light for any type of vehicle 2, - it thus makes it possible to adapt to very inclined rear windows and of smaller dimensions than for conventional vehicles, as in the case of coupe motor vehicles; thus, the light device 1 can easily be integrated into this type of rear glasses, - it makes it possible to reduce the number of electronic media. This thus reduces the cost of the light device 1.
  • the integration of a single electronic support facilitates the manufacture of the light device 1, - it makes it possible to reduce the number of primary light sources 120 and the number of secondary light sources 130, and consequently the cost of the light device 1.

Abstract

The invention relates to a lighting device (1) configured to perform a third brake light function and comprising: - a housing (10) configured to receive optical modules (12, 13), - a primary optical module (12) configured to perform the third brake function, - a secondary optical module (13) configured to perform a function of projecting a light pattern onto a reflection surface (20), and - an output lens (14) comprising a pattern and configured to close the housing (10), characterised in that: - the primary optical module (12) is a flat light guide, and - the secondary optical module (13) is a flat light guide.

Description

Dispositif lumineux de véhicule configuré pour réaliser une fonction de feu de stop surélevéVehicle lighting device configured to perform a high-mounted brake light function
La présente invention se rapporte à un dispositif lumineux pour véhicule configuré pour réaliser une fonction de feu de stop surélevé. Elle trouve une application particulière mais non limitative dans les véhicules automobiles.The present invention relates to a vehicle lighting device configured to perform a high-mounted brake light function. It finds a particular but non-limiting application in motor vehicles.
Dans le domaine des véhicules automobiles, un dispositif lumineux pour véhicule configuré pour réaliser une fonction de feu de stop surélevé connu de l’homme du métier comprend :
- un boîtier configuré pour accueillir des modules optiques,
- un module optique primaire configuré pour réaliser la fonction de feu de stop surélevé,
- un module optique secondaire configuré pour réaliser une fonction de projection d’un motif lumineux sur une surface de réflexion,
- une glace de sortie comprenant un motif.In the field of motor vehicles, a lighting device for a vehicle configured to perform a raised brake light function known to those skilled in the art comprises:
- a box configured to accommodate optical modules,
- a primary optical module configured to perform the raised brake light function,
- a secondary optical module configured to perform a function of projecting a light pattern onto a reflection surface,
- an exit window including a pattern.
Le module optique primaire comprend :
- un support électronique,
- une pluralité de sources de lumière (environ dix-huit) disposées sur le support électronique et configurées pour émettre des rayons lumineux,
- une pluralité de réflecteurs sur laquelle les rayons lumineux des sources de lumière se reflètent pour former un faisceau lumineux primaire qui sort vers l’extérieur du véhicule automobile.The primary optical module includes:
- electronic support,
- a plurality of light sources (approximately eighteen) arranged on the electronic support and configured to emit light rays,
- a plurality of reflectors on which the light rays of the light sources are reflected to form a primary light beam which exits towards the outside of the motor vehicle.
Le module optique secondaire est configuré pour réaliser une fonction de projection d’un motif lumineux sur une glace de sortie, ledit motif lumineux se reflétant sur une surface de réflexion. Le module optique secondaire comprend :
- un autre support électronique,
- une pluralité de sources de lumière (environ cinquante-quatre) disposées sur le support électronique et configurées pour émettre des rayons lumineux pour former un faisceau lumineux secondaire qui passe au travers d’une glace de sortie pour former ledit motif lumineux qui se reflète sur la surface de réflexion. The secondary optical module is configured to perform a function of projecting a light pattern onto an output lens, said light pattern reflecting on a reflection surface. The secondary optical module includes:
- another electronic medium,
- a plurality of light sources (approximately fifty-four) arranged on the electronic support and configured to emit light rays to form a secondary light beam which passes through an exit glass to form said light pattern which is reflected on the reflection surface.
Un inconvénient de cet état de la technique est que l’ensemble formé par le boîtier, le support de modules optiques, le module optique primaire et le module optique secondaire, est encombrant dans la dimension verticale. A disadvantage of this state of the art is that the assembly formed by the housing, the optical module support, the primary optical module and the secondary optical module is bulky in the vertical dimension.
Dans ce contexte, la présente invention vise à proposer un dispositif lumineux pour véhicule configuré pour réaliser une fonction de feu de stop surélevé qui permet de résoudre l’inconvénient mentionné. In this context, the present invention aims to propose a lighting device for a vehicle configured to perform a raised brake light function which makes it possible to resolve the mentioned drawback.
A cet effet, l’invention propose un dispositif lumineux pour véhicule configuré pour réaliser une fonction de feu de stop surélevé et comprenant :
- un boîtier configuré pour accueillir des modules optiques,
- un module optique primaire configuré pour réaliser la fonction de feu de stop surélevé,
- un module optique secondaire configuré pour réaliser une fonction de projection d’un motif lumineux sur une surface de réflexion,
- une glace de sortie comprenant un motif et configurée pour fermer ledit boîtier,
caractérisé en ce que :
- ledit module optique primaire est un guide de lumière plat, et
- ledit module optique secondaire est un guide de lumière plat.To this end, the invention proposes a lighting device for a vehicle configured to perform a raised brake light function and comprising:
- a box configured to accommodate optical modules,
- a primary optical module configured to perform the raised brake light function,
- a secondary optical module configured to perform a function of projecting a light pattern onto a reflection surface,
- an exit window comprising a pattern and configured to close said housing,
characterized in that:
- said primary optical module is a flat light guide, and
- said secondary optical module is a flat light guide.
Ainsi, comme on le verra en détail par la suite, le fait de remplacer les réflecteurs par le guide de lumière primaire plat va permettre de réduire considérablement l’encombrement vertical du dispositif lumineux et le nombre de sources de lumière primaires utilisées. Thus, as will be seen in detail later, replacing the reflectors with the flat primary light guide will make it possible to considerably reduce the vertical bulk of the light device and the number of primary light sources used.
Selon des modes de réalisation non limitatifs, ledit dispositif lumineux peut comporter en outre une ou plusieurs caractéristiques supplémentaires prises seules ou selon toutes les combinaisons techniquement possibles, parmi les suivantes. According to non-limiting embodiments, said light device may also include one or more additional characteristics taken alone or in all technically possible combinations, among the following.
Selon un mode de réalisation non limitatif, ladite surface de réflexion est une lunette arrière dudit véhicule.According to a non-limiting embodiment, said reflection surface is a rear window of said vehicle.
Selon un mode de réalisation non limitatif, ledit module optique secondaire comprend des prismes ou une sérigraphie.According to a non-limiting embodiment, said secondary optical module comprises prisms or screen printing.
Selon un mode de réalisation non limitatif, ledit dispositif lumineux comprend au moins une source de lumière primaire configurée pour générer des rayons lumineux primaires qui coopèrent avec ledit module optique primaire de sorte à créer un faisceau lumineux primaire suivant un axe d’émission desdits rayons lumineux primaires.According to a non-limiting embodiment, said light device comprises at least one primary light source configured to generate primary light rays which cooperate with said primary optical module so as to create a primary light beam along an axis of emission of said light rays primaries.
Selon un mode de réalisation non limitatif, ledit dispositif lumineux comprend au moins une source de lumière secondaire configurée pour générer des rayons lumineux secondaires qui coopèrent avec ledit module optique secondaire de sorte à créer un faisceau lumineux secondaire suivant une direction transversale à un axe d’émission desdits rayons lumineux secondaires.According to a non-limiting embodiment, said light device comprises at least one secondary light source configured to generate secondary light rays which cooperate with said secondary optical module so as to create a secondary light beam in a direction transverse to an axis of emission of said secondary light rays.
Selon un mode de réalisation non limitatif, ladite au moins une source de lumière primaire et ladite au moins une source de lumière secondaire sont disposées respectivement sur les faces opposées d’un même support électronique disposé entre ledit module optique primaire et ledit module optique secondaire.According to a non-limiting embodiment, said at least one primary light source and said at least one secondary light source are respectively arranged on opposite faces of the same electronic support disposed between said primary optical module and said secondary optical module.
Selon un mode de réalisation non limitatif, ladite au moins une source de lumière primaire et ladite au moins une source de lumière secondaire sont activables indépendamment l’une de l’autre.According to a non-limiting embodiment, said at least one primary light source and said at least one secondary light source can be activated independently of each other.
Selon un mode de réalisation non limitatif, ladite glace de sortie comprend une première partie intégrant ledit motif et une deuxième partie disposée de part et d’autre de la première partie configurée pour faire une jonction avec ledit boîtier.According to a non-limiting embodiment, said outlet glass comprises a first part integrating said pattern and a second part arranged on either side of the first part configured to make a junction with said housing.
Selon un mode de réalisation non limitatif, ladite deuxième partie de ladite glace de fermeture est opaque.According to a non-limiting embodiment, said second part of said closing glass is opaque.
Selon un mode de réalisation non limitatif, ledit dispositif lumineux est un feu de stop surélevé.According to a non-limiting embodiment, said light device is a raised brake light.
Selon un mode de réalisation non limitatif, le dispositif lumineux comprend plus de deux sources de lumière primaires.According to a non-limiting embodiment, the light device comprises more than two primary light sources.
Selon un mode de réalisation non limitatif, le dispositif lumineux comprend plus de deux sources de lumière secondaires.According to a non-limiting embodiment, the light device comprises more than two secondary light sources.
Selon un mode de réalisation non limitatif, ladite au moins une source de lumière primaire et ladite au moins une source de lumière secondaire sont des sources de lumière à semi-conducteur.According to a non-limiting embodiment, said at least one primary light source and said at least one secondary light source are semiconductor light sources.
Selon un mode de réalisation non limitatif, ledit module optique primaire comprend une extrémité comprenant une face en regard de laquelle au moins une source de lumière primaire est disposée.According to a non-limiting embodiment, said primary optical module comprises an end comprising a face facing which at least one primary light source is arranged.
Selon un mode de réalisation non limitatif, ledit module optique secondaire comprend une extrémité comprenant une face en regard de laquelle au moins une source de lumière secondaire est disposée.According to a non-limiting embodiment, said secondary optical module comprises an end comprising a face facing which at least one secondary light source is arranged.
Selon un mode de réalisation non limitatif, la première partie centrale de la glace de sortie est transparente.According to a non-limiting embodiment, the first central part of the outlet glass is transparent.
Selon un mode de réalisation non limitatif, la première partie centrale de la glace de sortie est semi-transparente.According to a non-limiting embodiment, the first central part of the outlet glass is semi-transparent.
Selon un mode de réalisation non limitatif, la première partie centrale de la glace de sortie est diffusante.According to a non-limiting embodiment, the first central part of the outlet glass is diffusing.
L’invention et ses différentes applications seront mieux comprises à la lecture de la description qui suit et à l’examen des figures qui l’accompagnent :The invention and its various applications will be better understood on reading the following description and examining the accompanying figures:
illustre un schéma d’un dispositif lumineux pour véhicule configuré pour réaliser une fonction de feu de stop surélevé, ledit dispositif lumineux comprenant un boîtier, un module optique primaire qui est un guide de lumière plat, un module optique secondaire qui est un guide de lumière plat, et une glace de sortie, selon un mode de réalisation non limitatif de l’invention, illustrates a diagram of a lighting device for a vehicle configured to perform a high-mounted brake light function, said lighting device comprising a housing, a primary optical module which is a flat light guide, a secondary optical module which is a light guide flat, and an outlet glass, according to a non-limiting embodiment of the invention,
illustre un vue schématique longitudinale d’un un becquet arrière d’un véhicule comprenant ledit dispositif lumineux de la , selon un mode de réalisation non limitatif, illustrates a schematic longitudinal view of a rear spoiler of a vehicle comprising said light device of the , according to a non-limiting embodiment,
illustre une vue en coupe schématique transversale du dispositif lumineux de la , selon un mode de réalisation non limitatif. illustrates a schematic cross-sectional view of the light device of the , according to a non-limiting embodiment.
Les éléments identiques, par structure ou par fonction, apparaissant sur différentes figures conservent, sauf précision contraire, les mêmes références.Identical elements, by structure or function, appearing in different figures retain, unless otherwise specified, the same references.
Le dispositif lumineux 1 pour véhicule selon l’invention est décrit en référence aux figures 1 à 3. Dans un mode de réalisation non limitatif, le véhicule 2 est un véhicule automobile. Par véhicule automobile, on entend tout type de véhicule motorisé. Ce mode de réalisation est pris comme exemple non limitatif dans la suite de la description. Dans la suite de la description, le véhicule 2 est ainsi autrement appelé véhicule automobile 2. L’axe véhicule Ox est représenté sur la . Le véhicule automobile 2 comprend ledit dispositif lumineux 1. The lighting device 1 for a vehicle according to the invention is described with reference to Figures 1 to 3. In a non-limiting embodiment, the vehicle 2 is a motor vehicle. By motor vehicle we mean any type of motorized vehicle. This embodiment is taken as a non-limiting example in the remainder of the description. In the remainder of the description, the vehicle 2 is thus otherwise called motor vehicle 2. The vehicle axis Ox is represented on the . The motor vehicle 2 comprises said light device 1.
Le dispositif lumineux 1 est configuré pour réaliser :
- une fonction de feu de stop surélevé f1 (appelée en anglais CHMSL pour « Center High Mounted Spot Light »), autrement appelé troisième feu de stop, et
- une fonction de projection f2 d’un motif lumineux m1 (illustré sur la ) sur une surface de réflexion 20 (illustré sur les figures 2 à 3) dudit véhicule automobile 2. Dans un mode de réalisation non limitatif, la surface de réflexion 20 est la lunette arrière dudit véhicule automobile 2, ainsi appelée lunette arrière 20 dans la suite de la description. The light device 1 is configured to achieve:
- an f1 raised brake light function (called CHMSL for “Center High Mounted Spot Light”), otherwise called third brake light, and
- a projection function f2 of a light pattern m1 (illustrated on the ) on a reflection surface 20 (illustrated in Figures 2 to 3) of said motor vehicle 2. In a non-limiting embodiment, the reflection surface 20 is the rear window of said motor vehicle 2, thus called rear window 20 in the following description.
Ledit dispositif lumineux 1 est ainsi un feu de stop surélevé qui intègre une fonction supplémentaire, la fonction f2.Said light device 1 is thus a raised brake light which integrates an additional function, the f2 function.
Dans un mode de réalisation non limitatif, le dispositif lumineux 1 est disposé dans un becquet arrière 21, autrement appelé becquet 21 (illustré sur les figures 1 et 2) du véhicule automobile 2 qui est installé sur la lunette arrière 20 du véhicule automobile 2. Le becquet 21 s’étend sensiblement perpendiculairement à l’axe véhicule Ox dans une direction Oy. Ce mode de réalisation non limitatif est pris comme exemple non limitatif dans la suite de la description. In a non-limiting embodiment, the light device 1 is arranged in a rear spoiler 21, otherwise called spoiler 21 (illustrated in Figures 1 and 2) of the motor vehicle 2 which is installed on the rear window 20 of the motor vehicle 2. The spoiler 21 extends substantially perpendicular to the vehicle axis Ox in a direction Oy. This non-limiting embodiment is taken as a non-limiting example in the remainder of the description.
Tel qu’illustré sur la , le dispositif lumineux 1 comprend :
- un boîtier 10,
- un module optique primaire 12 configuré pour réaliser la fonction de feu de stop surélevé f1,
- un module optique secondaire 13 configuré pour réaliser la fonction de projection f2 d’un motif lumineux m1 sur la surface de réflexion 20,
- une glace de sortie 14.As illustrated on the , the light device 1 includes:
- a box 10,
- a primary optical module 12 configured to perform the function of raised brake light f1,
- a secondary optical module 13 configured to carry out the projection function f2 of a light pattern m1 on the reflection surface 20,
- an exit window 14.
Le dispositif lumineux 1 comprend en outre :
- au moins une source de lumière primaire 120, autrement appelée source de lumière 120,
- au moins une source de lumière secondaire 130, autrement appelée source de lumière 130.The light device 1 further comprises:
- at least one primary light source 120, otherwise called light source 120,
- at least one secondary light source 130, otherwise called light source 130.
Dans un mode de réalisation non limitatif, le dispositif lumineux 1 comprend plus de deux sources de lumière primaires 120. Dans une variante de réalisation non limitative, il comprend entre 20 et 60 sources de lumière primaires 120. Dans un exemple non limitatif, il comprend 30 sources de lumière primaires 120. Dans un mode de réalisation non limitatif, le dispositif lumineux 1 comprend plus de deux sources de lumière secondaires 130. Dans une variante de réalisation non limitative, il comprend entre 20 et 60 sources de lumière secondaires 130. Dans un exemple non limitatif, il comprend 30 sources de lumière secondaires 130. Ces modes de réalisation non limitatifs sont pris comme exemples non limitatifs dans la suite de la description.In a non-limiting embodiment, the light device 1 comprises more than two primary light sources 120. In a non-limiting alternative embodiment, it comprises between 20 and 60 primary light sources 120. In a non-limiting example, it comprises 30 primary light sources 120. In a non-limiting embodiment, the light device 1 comprises more than two secondary light sources 130. In a non-limiting alternative embodiment, it comprises between 20 and 60 secondary light sources 130. In a non-limiting embodiment, it comprises between 20 and 60 secondary light sources 130. a non-limiting example, it comprises 30 secondary light sources 130. These non-limiting embodiments are taken as non-limiting examples in the remainder of the description.
Tel qu’illustré sur les figures 1 et 2, le boîtier 10 est configuré pour accueillir le module optique primaire 12, le module optique secondaire 13, et les sources de lumière primaires 120 et les sources de lumière secondaires 130.As illustrated in Figures 1 and 2, the housing 10 is configured to accommodate the primary optical module 12, the secondary optical module 13, and the primary light sources 120 and the secondary light sources 130.
Le module optique primaire 12 est un guide de lumière plat, tel qu’illustré sur la vue en coupe de la qui illustre une section dudit module optique primaire 12. Cela permet de renvoyer la lumière selon l’axe Oz. Il est autrement appelé guide de lumière primaire 12, ou guide de lumière 12. Le module optique primaire 12 s’étend longitudinalement dans le boîtier 10 sensiblement selon de l’axe Oy le long du becquet 21 du véhicule automobile 2 lorsque le dispositif lumineux 1 est installé dans ledit becquet 21. Le module optique primaire 12 coopère avec les sources de lumière primaires 120. Tel qu’illustré sur les figures 1 à 3, le module optique primaire 12 ensemble les sources de lumière primaire 120 est configuré pour générer un faisceau lumineux primaire fx1 dans une première direction d1 sensiblement horizontale (i.e. sensiblement parallèle à l’axe véhicule Ox) vers l’extérieur du véhicule automobile 1 pour réaliser la fonction de feu de stop surélevé f1. Tel qu’illustré sur la , le boîtier 10 comprend une fenêtre 101 en matériau transparent configurée pour laisser passer le faisceau lumineux primaire fx1. Tel qu’illustré sur la , le module optique primaire 12 comprend une extrémité 12.1 comprenant une face 12.10 en regard de laquelle les sources de lumière primaires 120 sont disposées. Pour des raisons de clarté sur la , seule une source de lumière primaire 120 a été illustrée. Dans des modes de réalisation non limitatifs non illustrés, le module optique primaire 12 est fixé au boîtier 10 par vissage, agrafage ou clipsage. The primary optical module 12 is a flat light guide, as illustrated in the sectional view of the which illustrates a section of said primary optical module 12. This makes it possible to return the light along the Oz axis. It is otherwise called primary light guide 12, or light guide 12. The primary optical module 12 extends longitudinally in the housing 10 substantially along the axis Oy along the spoiler 21 of the motor vehicle 2 when the light device 1 is installed in said spoiler 21. The primary optical module 12 cooperates with the primary light sources 120. As illustrated in Figures 1 to 3, the primary optical module 12 together the primary light sources 120 is configured to generate a beam primary light fx1 in a first direction d1 substantially horizontal (ie substantially parallel to the vehicle axis Ox) towards the outside of the motor vehicle 1 to perform the function of raised brake light f1. As illustrated on the , the housing 10 includes a window 101 of transparent material configured to let the primary light beam fx1 pass. As illustrated on the , the primary optical module 12 comprises an end 12.1 comprising a face 12.10 facing which the primary light sources 120 are arranged. For reasons of clarity on the , only a primary light source 120 has been illustrated. In non-limiting embodiments not illustrated, the primary optical module 12 is fixed to the housing 10 by screwing, stapling or clipping.
Le module optique secondaire 13 est un guide de lumière plat, tel qu’illustré sur la vue en coupe de la qui illustre une section dudit module optique secondaire 13. Il est autrement appelé guide de lumière secondaire 13, ou guide de lumière 13. Le module optique secondaire 13 s’étend longitudinalement dans le boîtier 10 sensiblement selon de l’axe Oy le long du becquet 21 du véhicule automobile 2 lorsque le dispositif lumineux 1 est installé dans ledit becquet 21. Le module optique secondaire 13 coopèrent avec les sources de lumière secondaires 130. Tel qu’illustré sur les figures 1 à 3, le module optique secondaire 13 est configuré pour générer un faisceau lumineux secondaire fx2 dans une deuxième direction d2 sensiblement verticale selon un axe Oz (i.e. sensiblement perpendiculaire à l’axe véhicule Ox) vers le bas pour réaliser la fonction de projection f2 d’un motif lumineux m1. Le faisceau lumineux secondaire f2 traverse la glace de sortie 14 comprenant un motif m0 (illustré sur la ) de sorte à créer le motif lumineux m1 (illustré sur la ) qui se reflète sur la lunette arrière 20 du véhicule automobile 2. La surface de réflexion 20, ici la lunette arrière permet de créer une projection holographique visible depuis l’extérieur du véhicule automobile 2 mais pas depuis l’intérieur du véhicule automobile 2. La projection holographique sur la lunette arrière 20 ne gêne pas ainsi le conducteur. Tel qu’illustré sur la , le module optique secondaire 13 comprend une extrémité 13.1 comprenant une face 13.10 en regard de laquelle les sources de lumière secondaires 130 sont disposées. Pour des raisons de clarté sur la , seule une source de lumière secondaire 130 a été illustrée. Dans un mode de réalisation non limitatif, le module optique secondaire 13 comprend des prismes ou une sérigraphie. Cela permet de dévier les rayons lumineux secondaires r2 (décrits plus loin) générés par les sources de lumière secondaires 130 dans la bonne direction, à savoir la deuxième direction d2. Dans des modes de réalisation non limitatifs non illustrés, le module optique secondaire 13 est fixé au boîtier 10 par vissage, agrafage ou clipsage. The secondary optical module 13 is a flat light guide, as illustrated in the sectional view of the which illustrates a section of said secondary optical module 13. It is otherwise called secondary light guide 13, or light guide 13. The secondary optical module 13 extends longitudinally in the housing 10 substantially along the axis Oy along the spoiler 21 of the motor vehicle 2 when the light device 1 is installed in said spoiler 21. The secondary optical module 13 cooperates with the secondary light sources 130. As illustrated in Figures 1 to 3, the secondary optical module 13 is configured to generate a secondary light beam fx2 in a second direction d2 substantially vertical along an axis Oz (ie substantially perpendicular to the vehicle axis Ox) downwards to carry out the projection function f2 of a light pattern m1. The secondary light beam f2 passes through the exit glass 14 comprising a pattern m0 (illustrated on the ) so as to create the m1 light pattern (illustrated on the ) which is reflected on the rear window 20 of the motor vehicle 2. The reflection surface 20, here the rear window, makes it possible to create a holographic projection visible from the outside of the motor vehicle 2 but not from the inside of the motor vehicle 2. The holographic projection on the rear window 20 thus does not disturb the driver. As illustrated on the , the secondary optical module 13 comprises an end 13.1 comprising a face 13.10 facing which the secondary light sources 130 are arranged. For reasons of clarity on the , only a secondary light source 130 has been illustrated. In a non-limiting embodiment, the secondary optical module 13 comprises prisms or screen printing. This makes it possible to deflect the secondary light rays r2 (described later) generated by the secondary light sources 130 in the right direction, namely the second direction d2. In non-limiting embodiments not illustrated, the secondary optical module 13 is fixed to the housing 10 by screwing, stapling or clipping.
Dans un mode de réalisation non limitatif, le module optique secondaire 13 est différent du module optique primaire 12. Tel qu’illustré sur la , dans ce cas, le guide de lumière 13 est placé derrière le guide de lumière 13 dans la profondeur du boîtier 10, à savoir dans le sens de l’axe véhicule Ox. In a non-limiting embodiment, the secondary optical module 13 is different from the primary optical module 12. As illustrated in the , in this case, the light guide 13 is placed behind the light guide 13 in the depth of the housing 10, namely in the direction of the vehicle axis Ox.
Dans un mode de réalisation non limitatif, les sources de lumière primaires 120 et les sources de lumière secondaires 130 sont des sources de lumière à semi-conducteur. Dans un mode de réalisation non limitatif, les sources de lumière à semi-conducteur font partie d’une diode électroluminescente ou d’une diode laser. Par diode électroluminescente, on entend tout type de diodes électroluminescentes, que ce soit dans des exemples non limitatifs des LED (« Light Emitting Diode » en anglais), des OLED (« Organic LED » en anglais), des AMOLED (« Active-Matrix-Organic LED » en anglais), ou encore des FOLED (« Flexible OLED » en anglais). In a non-limiting embodiment, the primary light sources 120 and the secondary light sources 130 are semiconductor light sources. In a non-limiting embodiment, the semiconductor light sources are part of a light-emitting diode or a laser diode. By light-emitting diode we mean any type of light-emitting diode, whether in non-limiting examples of LEDs (“Light Emitting Diode” in English), OLEDs (“Organic LED” in English), AMOLEDs (“Active-Matrix”). -Organic LED” in English), or even FOLEDs (“Flexible OLED” in English).
Dans un mode de réalisation non limitatif, le dispositif lumineux 1 comprend en outre un support électronique 16, autrement appelé carte PCBA (« Printed Circuit Board Assembly » en anglais) configuré pour accueillir les sources de lumière primaires 120 et les sources de lumière secondaires 130. Elle comprend deux faces 16.1 et 16.2 opposées. Tel qu’illustré sur la , les sources de lumière primaires 120 et les sources de lumière secondaires 130 sont disposées sur le support électronique 16 et respectivement sur chacune de ses faces opposées 16.1, 16.2. Tel qu’illustré sur la , le guide de lumière 12 et le guide de lumière 13 sont disposés de part et d’autre du support électronique 16. Ils s’étendent ainsi dans la profondeur du boîtier 10, le module optique secondaire 13 se trouvant derrière le module optique primaire 12 et donc plus loin de la glace de sortie 14 dans le sens de l’axe véhicule Ox. Le support électronique 16 est ainsi disposé entre le module optique primaire 12 et le module optique secondaire 13 dans le sens de l’axe véhicule Ox. Ce support électronique 16 permet d’avoir des sources de lumière primaires 12 et des sources de lumière secondaires 13 dans un environnement compact en z. Dans des modes de réalisation non limitatifs non illustrés, le support électronique 16 est fixé au boîtier 10 par vissage, agrafage, clipsage.In a non-limiting embodiment, the light device 1 further comprises an electronic support 16, otherwise called PCBA card (“Printed Circuit Board Assembly” in English) configured to accommodate the primary light sources 120 and the secondary light sources 130 It comprises two opposite faces 16.1 and 16.2. As illustrated on the , the primary light sources 120 and the secondary light sources 130 are arranged on the electronic support 16 and respectively on each of its opposite faces 16.1, 16.2. As illustrated on the , the light guide 12 and the light guide 13 are arranged on either side of the electronic support 16. They thus extend into the depth of the housing 10, the secondary optical module 13 being located behind the primary optical module 12 and therefore further from the exit window 14 in the direction of the vehicle axis Ox. The electronic support 16 is thus arranged between the primary optical module 12 and the secondary optical module 13 in the direction of the vehicle axis Ox. This electronic support 16 makes it possible to have primary light sources 12 and secondary light sources 13 in a compact environment in z. In non-limiting embodiments not illustrated, the electronic support 16 is fixed to the housing 10 by screwing, stapling, clipping.
Dans un mode de réalisation non limitatif, les sources de lumière primaires 120 et les sources de lumière secondaires 130 sont activables indépendamment l’une de l’autre. Cela permet de contrôler la fonction de feu de stop surélevé f1 et la fonction de projection f2 d’un motif lumineux m1 de façon indépendante l’une de l’autre.In a non-limiting embodiment, the primary light sources 120 and the secondary light sources 130 can be activated independently of each other. This makes it possible to control the high-mounted brake light function f1 and the projection function f2 of a light pattern m1 independently of each other.
Tel qu’illustré sur la , les sources de lumière primaires 120 émettent des rayons lumineux primaires r1 (illustrés sur la et la ), autrement appelés rayons lumineux r1, qui coopèrent avec le guide de lumière 12 de sorte à créer un faisceau lumineux primaire fx1 (illustré sur les figures 1 à 3) suivant un axe d’émission ax1 desdits rayons lumineux primaires r1 pour réaliser la fonction de feu de stop surélevé f1.As illustrated on the , the primary light sources 120 emit primary light rays r1 (illustrated in the and the ), otherwise called light rays r1, which cooperate with the light guide 12 so as to create a primary light beam fx1 (illustrated in Figures 1 to 3) along an emission axis ax1 of said primary light rays r1 to carry out the function high-mounted brake light f1.
Tel qu’illustré sur la , les sources de lumières secondaires 130 émettent des rayons lumineux secondaires r2 (illustrés sur la et la ), autrement appelés rayons lumineux r2, qui coopèrent avec le guide de lumière 13 de sorte à créer le faisceau lumineux secondaire fx2 (illustré sur les figures 1 à 3) suivant une direction transversale à un axe d’émission ax2 desdits rayons lumineux secondaires r2 pour réaliser la fonction de projection f2 du motif lumineux m1.As illustrated on the , the secondary light sources 130 emit secondary light rays r2 (illustrated in the and the ), otherwise called light rays r2, which cooperate with the light guide 13 so as to create the secondary light beam fx2 (illustrated in Figures 1 to 3) in a direction transverse to an axis of emission ax2 of said secondary light rays r2 to carry out the projection function f2 of the light pattern m1.
Tel qu’illustré sur la , la glace de sortie 14 est configurée pour fermer le boîtier 10. Elle comprend :
- une première partie centrale 140 intégrant ledit motif m0, autrement appelée fenêtre 140,
- une deuxième partie 141 disposée de part et d’autre de la partie centrale 140 qui fait office de masque.As illustrated on the , the outlet glass 14 is configured to close the housing 10. It includes:
- a first central part 140 integrating said pattern m0, otherwise called window 140,
- a second part 141 arranged on either side of the central part 140 which acts as a mask.
La première partie centrale 140 de la glace de sortie 14 est transparente, à savoir elle laisse passer la lumière, ou est diffusante (elle permet de diffuser les rayons lumineux r2). Tel qu’illustré sur la , la partie centrale 140 est traversée par le faisceau lumineux secondaire fx2 de sorte à créer un motif lumineux m1 tel qu’illustré sur la . Le motif lumineux m1 est ainsi visible au travers de cette partie centrale 140 mais également grâce à sa réflexion vers le bas selon l’axe Oz sur la surface de réflexion 20, ici sur la lunette arrière du véhicule automobile 20. Il y a ainsi un effet dédoublé du motif lumineux m1 On obtient ainsi un logo lumineux m1 dit holographique. Dans un mode de réalisation non limitatif, le motif m0 est un logo d’un constructeur. On notera que pour avoir un logo lumineux m1 à l’endroit sur la lunette arrière 20, on a un tracé à l’envers du logo m0 sur la partie centrale 140 de la glace de sortie 14. La illustre le logo lumineux m1 à l’envers qui résulte du logo m0 (non visible sur la ) traversé par le faisceau lumineux secondaire fx2, et le logo lumineux m1 à l’endroit qui résulte de la réflexion du logo lumineux m1 sur la lunette arrière 20. Les sources de lumière secondaires 130 illuminent ainsi le logo m0 qui est à l’envers. La deuxième partie 141 la glace de sortie 14 est configurée pour faire la liaison, autrement appelée jonction, entre la glace de sortie 14 et le boîtier 10.The first central part 140 of the exit window 14 is transparent, i.e. it lets light pass through, or is diffusing (it allows the light rays r2 to be diffused). As illustrated on the , the central part 140 is crossed by the secondary light beam fx2 so as to create a light pattern m1 as illustrated in the . The light pattern m1 is thus visible through this central part 140 but also thanks to its downward reflection along the axis Oz on the reflection surface 20, here on the rear window of the motor vehicle 20. There is thus a split effect of the m1 luminous pattern We thus obtain a so-called holographic m1 luminous logo. In a non-limiting embodiment, the pattern m0 is a logo of a manufacturer. Note that to have a luminous logo m1 right side up on the rear window 20, we have a reverse tracing of the logo m0 on the central part 140 of the exit window 14. The illustrates the illuminated m1 logo upside down which results from the m0 logo (not visible on the ) crossed by the secondary light beam fx2, and the luminous logo m1 at the location which results from the reflection of the luminous logo m1 on the rear window 20. The secondary light sources 130 thus illuminate the logo m0 which is upside down . The second part 141, the outlet window 14, is configured to make the connection, otherwise called a junction, between the outlet window 14 and the housing 10.
Dans un mode de réalisation non limitatif, la deuxième partie 141 de la glace de sortie 14 est en PC (polycarbonate). Le PC permet d’avoir une face externe robuste, qui ne casse pas contrairement à du PMMA (poly-méthacrylate de méthyle). Dans un autre mode de réalisation non limitatif, la deuxième partie 141 de la glace de sortie 14 est en PMMA. Dans des modes de réalisation non limitatifs, la première partie 140 est en ABS (« acrylonitrile butadiène styrène »), vinyle, PET (« Polyéthylène Téréphtalate »), PMMA, ou PC.In a non-limiting embodiment, the second part 141 of the outlet glass 14 is made of PC (polycarbonate). The PC provides a robust external face, which does not break unlike PMMA (poly-methyl methacrylate). In another non-limiting embodiment, the second part 141 of the outlet glass 14 is made of PMMA. In non-limiting embodiments, the first part 140 is made of ABS (“acrylonitrile butadiene styrene”), vinyl, PET (“Polyethylene Terephthalate”), PMMA, or PC.
Le motif m0 de la glace de sortie 14 est réalisé selon différents modes de réalisation non limitatifs présentés ci-après.The pattern m0 of the outlet glass 14 is produced according to different non-limiting embodiments presented below.
Dans un premier mode de réalisation non limitatif, le motif m0 est formé par bi-injection. Ainsi, la glace de sortie 14 est bi-injectée. Cela permet de créer la partie centrale 140 avec le motif m0 et la deuxième partie 141.In a first non-limiting embodiment, the pattern m0 is formed by bi-injection. Thus, the outlet glass 14 is bi-injected. This makes it possible to create the central part 140 with the pattern m0 and the second part 141.
Dans un deuxième mode de réalisation non limitatif, le motif m0 est formé au moyen d’un film sérigraphié ou imprimé. La glace de sortie 14 comprend une fenêtre sur laquelle le film sérigraphié ou imprimé est assemblé (à savoir posé et collé). Dans des modes de réalisation non limitatifs, le film est en ABS (« acrylonitrile butadiène styrène »), vinyle, PET (« Polyéthylène Téréphtalate »), PMMA ou PC. Dans une première variante de réalisation non limitatif, la glace de sortie 14 est complètement transparente Dans une deuxième variante de réalisation non limitatif, la glace de sortie 14 est bi-matière avec une première partie transparente 140 et une deuxième partie opaque 141. Cela permet de gérer les fuites de lumière à la jonction avec le boîtier 10, la jonction glace de sortie 14 – boîtier 10 se faisant via la partie opaque 141. In a second non-limiting embodiment, the pattern m0 is formed using a screen-printed or printed film. The exit window 14 includes a window on which the screen-printed or printed film is assembled (i.e. placed and glued). In non-limiting embodiments, the film is made of ABS (“acrylonitrile butadiene styrene”), vinyl, PET (“Polyethylene Terephthalate”), PMMA or PC. In a first non-limiting alternative embodiment, the outlet window 14 is completely transparent. In a second non-limiting alternative embodiment, the outlet window 14 is bi-material with a first transparent part 140 and a second opaque part 141. This allows to manage light leaks at the junction with the housing 10, the outlet glass junction 14 – housing 10 being made via the opaque part 141.
Dans un troisième mode de réalisation non limitatif, le motif m0 est formé par un film surmoulé dans la glace de sortie 14. Il n’y a plus d’assemblage. Dans une première variante de réalisation non limitatif, la glace de sortie 14 est complètement transparente Dans une deuxième variante de réalisation non limitatif, la glace de sortie 14 est bi-matière avec une première partie transparente 140 et une deuxième partie opaque 141. Dans des modes de réalisation non limitatifs, le film est en ABS (« acrylonitrile butadiène styrène »), vinyle, PET (« Polyéthylène Téréphtalate »), PMMA ou PC. In a third non-limiting embodiment, the pattern m0 is formed by a film overmolded in the outlet glass 14. There is no more assembly. In a first non-limiting alternative embodiment, the outlet glass 14 is completely transparent. In a second non-limiting alternative embodiment, the outlet glass 14 is bi-material with a first transparent part 140 and a second opaque part 141. In non-limiting embodiments, the film is made of ABS (“acrylonitrile butadiene styrene”), vinyl, PET (“Polyethylene Terephthalate”), PMMA or PC.
Dans une première variante de réalisation non limitative, le film est surmoulé au moyen d’un procédé IML (« In Mould Labeling » en anglais). Pour rappel, le procédé IML comprend les étapes de former et découper un film sérigraphié, de le placer dans un moule où une résine est injectée. Le procédé IML étant connu de l’homme du métier, il n’est pas décrit plus en détails ici.In a first non-limiting embodiment, the film is overmolded using an IML (“In Mold Labeling”) process. As a reminder, the IML process includes the steps of forming and cutting a screen-printed film, placing it in a mold where a resin is injected. The IML process being known to those skilled in the art, it is not described in further detail here.
Dans une deuxième variante de réalisation non limitative, le film est surmoulé au moyen d’un procédé IMD (« In Mould Decoration » en anglais). Pour rappel, le procédé IMD comprend les étapes de dérouler un film sérigraphié dans un moule, de le former, et d’injecter une résine dans le moule. Le procédé IMD étant connu de l’homme du métier, il n’est pas décrit plus en détails ici.In a second non-limiting embodiment, the film is overmolded using an IMD process (“In Mold Decoration” in English). As a reminder, the IMD process includes the steps of unrolling a screen-printed film in a mold, forming it, and injecting a resin into the mold. The IMD process being known to those skilled in the art, it is not described in further detail here.
Dans un quatrième mode de réalisation non limitatif, le motif m0 est formé par un procédé de sérigraphie par laser. Dans une première variante de réalisation non limitative, le procédé de sérigraphie est une ablation par laser (appelé en anglais « laser ablation »). Une peinture opaque est appliquée sur la glace de sortie 14, puis une ablation du motif m0 par laser est réalisée. Dans un mode de réalisation non limitatif, la glace de sortie 14 est transparente. Dans une deuxième variante de réalisation non limitative, le procédé de sérigraphie est une gravure par laser (appelé en anglais « laser etching »). Une peinture opaque est appliquée sur un film transparent ou translucide. Le film est appliqué sur la glace de sortie 14. Puis, le motif m0 est gravé par laser sur le film. In a fourth non-limiting embodiment, the pattern m0 is formed by a laser screen printing process. In a first non-limiting embodiment, the screen printing process is laser ablation (called “laser ablation”). An opaque paint is applied to the exit glass 14, then an ablation of the pattern m0 by laser is carried out. In a non-limiting embodiment, the outlet glass 14 is transparent. In a second non-limiting embodiment, the screen printing process is laser engraving (called “laser etching”). Opaque paint is applied to a transparent or translucent film. The film is applied to the exit glass 14. Then, the pattern m0 is engraved by laser on the film.
Dans un cinquième mode de réalisation non limitatif, le motif m0 est formé par un procédé d’estampage à chaud (appelé en anglais « hot stamping »). Une matrice est montée et chauffée sur la glace de sortie 14. Un film plastique avec une couche thermofusible et de l’encre opaque est inséré entre la matrice et la glace de sortie 14, la matrice exerçant une pression sur le film. Lorsque la matrice chauffe, l’encre opaque est transférée sur des excroissances de la glace de sortie 14 ce qui forme un relief du motif m0. In a fifth non-limiting embodiment, the pattern m0 is formed by a hot stamping process (called “hot stamping”). A die is mounted and heated on the exit glass 14. A plastic film with a hot-melt layer and opaque ink is inserted between the die and the outlet glass 14, the die exerting pressure on the film. When the matrix heats up, the opaque ink is transferred to the protrusions of the outlet glass 14 which forms a relief of the pattern m0.
Dans un sixième mode de réalisation non limitatif, le motif m0 est formé par un procédé de tampographie (appelé en anglais « tampo-print »). Un tampon qui comprend le motif m0 en relief est trempé dans de l’encre et est appliqué sur la glace de sortie 14 en exerçant une pression dessus. Le motif m0 est ainsi transféré sur la glace de sortie 14.In a sixth non-limiting embodiment, the pattern m0 is formed by a pad printing process (called “tampo-print”). A stamp which includes the pattern m0 in relief is dipped in ink and is applied to the exit glass 14 by exerting pressure on it. The pattern m0 is thus transferred to the output glass 14.
Bien entendu la description de l’invention n’est pas limitée aux modes de réalisation décrits ci-dessus et au domaine décrit ci-dessus. Ainsi, dans un autre mode de réalisation non limitatif, une seule source de lumière primaire 120 est associée au module optique primaire 12. Ainsi, dans un autre mode de réalisation non limitatif, une seule source de lumière secondaire 130 est associée le module optique secondaire 13. Ainsi, dans un autre mode de réalisation non limitatif, le module optique secondaire 13 et le module optique primaire 12 sont confondus. Ils ne forment ainsi qu’un seul et même guide de lumière plat. Dans ce cas, il existe des jonctions entre le module optique secondaire 13 et le module optique primaire 12 tout au long de du support électronique 16. Ainsi, dans un autre mode de réalisation non limitatif, la première partie centrale 140 de la glace de sortie 14 est semi-transparente.Of course the description of the invention is not limited to the embodiments described above and to the field described above. Thus, in another non-limiting embodiment, a single primary light source 120 is associated with the primary optical module 12. Thus, in another non-limiting embodiment, a single secondary light source 130 is associated with the secondary optical module. 13. Thus, in another non-limiting embodiment, the secondary optical module 13 and the primary optical module 12 are combined. They thus form a single flat light guide. In this case, there are junctions between the secondary optical module 13 and the primary optical module 12 all along the electronic support 16. Thus, in another non-limiting embodiment, the first central part 140 of the exit glass 14 is semi-transparent.
Ainsi, l’invention décrite présente notamment les avantages suivants :
- elle permet d’intégrer dans un même dispositif lumineux 1 la fonction de feu de stop surélevé f1 et la fonction de projection f2 tout en réduisant l’encombrement vertical du dispositif lumineux 1 du fait de la suppression des réflecteurs de l’état de la technique antérieur et de leur remplacement par un guide de lumière plat,
- elle permet de respecter la hauteur définie d’un feu de stop surélevé arrière pour tout type de véhicule 2,
- elle permet ainsi de s’adapter à des lunettes arrières très inclinées et de dimensions plus réduites que pour des véhicules classiques, comme dans le cas de véhicules automobiles coupés ; ainsi, le dispositif lumineux 1 est facilement intégrable dans ce type de lunettes arrières,
- elle permet de réduire le nombre de supports électroniques. Cela réduit ainsi le coût du dispositif lumineux 1. L’intégration d’un seul support électronique facilite la fabrication du dispositif lumineux 1,
- elle permet de réduire le nombre de sources de lumière primaires 120 et le nombre de sources de lumière secondaires 130, et par conséquent le coût du dispositif lumineux 1.
Thus, the invention described has in particular the following advantages:
- it makes it possible to integrate in the same light device 1 the raised brake light function f1 and the projection function f2 while reducing the vertical bulk of the light device 1 due to the removal of the reflectors of the state of the prior art and their replacement by a flat light guide,
- it makes it possible to respect the defined height of a rear raised brake light for any type of vehicle 2,
- it thus makes it possible to adapt to very inclined rear windows and of smaller dimensions than for conventional vehicles, as in the case of coupe motor vehicles; thus, the light device 1 can easily be integrated into this type of rear glasses,
- it makes it possible to reduce the number of electronic media. This thus reduces the cost of the light device 1. The integration of a single electronic support facilitates the manufacture of the light device 1,
- it makes it possible to reduce the number of primary light sources 120 and the number of secondary light sources 130, and consequently the cost of the light device 1.

Claims (10)

  1. Dispositif lumineux (1) configuré pour réaliser une fonction de feu de stop surélevé (f1) et comprenant :
    - un boîtier (10) configuré pour accueillir des modules optiques (12, 13),
    - un module optique primaire (12) configuré pour réaliser la fonction de feu de stop surélevé (f1),
    - un module optique secondaire (13) configuré pour réaliser une fonction de projection (f2) d’un motif lumineux (m1) sur une surface de réflexion (20),
    - une glace de sortie (14) comprenant un motif (m0) et configurée pour fermer ledit boîtier (10),
    caractérisé en ce que :
    - ledit module optique primaire (12) est un guide de lumière plat, et
    - ledit module optique secondaire (13) est un guide de lumière plat.     Light device (1) configured to perform a raised brake light function (f1) and comprising:
    - a housing (10) configured to accommodate optical modules (12, 13),
    - a primary optical module (12) configured to perform the high-mounted brake light function (f1),
    - a secondary optical module (13) configured to perform a projection function (f2) of a light pattern (m1) on a reflection surface (20),
    - an outlet window (14) comprising a pattern (m0) and configured to close said housing (10),
    characterized in that:
    - said primary optical module (12) is a flat light guide, and
    - said secondary optical module (13) is a flat light guide.
  2. Dispositif lumineux (1) selon la revendication 1, selon lequel ladite surface de réflexion (20) est une lunette arrière dudit véhicule (2).Light device (1) according to claim 1, wherein said reflection surface (20) is a rear window of said vehicle (2).
  3. Dispositif lumineux (1) selon l’une quelconque des revendications précédentes, selon lequel ledit module optique secondaire (13) comprend des prismes (131) ou une sérigraphie.Light device (1) according to any one of the preceding claims, according to which said secondary optical module (13) comprises prisms (131) or screen printing.
  4. Dispositif lumineux (1) selon l’une quelconque des revendications précédentes, selon lequel ledit dispositif lumineux (1) comprend au moins une source de lumière primaire (120) configurée pour générer des rayons lumineux primaires (r1) qui coopèrent avec ledit module optique primaire (12) de sorte à créer un faisceau lumineux primaire (fx1) suivant un axe d’émission (ax1) desdits rayons lumineux primaires (r1).Light device (1) according to any one of the preceding claims, according to which said light device (1) comprises at least one primary light source (120) configured to generate primary light rays (r1) which cooperate with said primary optical module (12) so as to create a primary light beam (fx1) along an emission axis (ax1) of said primary light rays (r1).
  5. Dispositif lumineux (1) selon l’une quelconque des revendications précédentes, selon lequel ledit dispositif lumineux (1) comprend au moins une source de lumière secondaire (130) configurée pour générer des rayons lumineux secondaires (r2) qui coopèrent avec ledit module optique secondaire (13) de sorte à créer un faisceau lumineux secondaire (fx2) suivant une direction transversale à un axe d’émission (ax2) desdits rayons lumineux secondaires (r2).Light device (1) according to any one of the preceding claims, according to which said light device (1) comprises at least one secondary light source (130) configured to generate secondary light rays (r2) which cooperate with said secondary optical module (13) so as to create a secondary light beam (fx2) in a direction transverse to an emission axis (ax2) of said secondary light rays (r2).
  6. Dispositif lumineux (1) selon la revendication 3 et la revendication 4, selon lequel ladite au moins une source de lumière primaire (120) et ladite au moins une source de lumière secondaire (130) sont disposées respectivement sur les faces opposées (16.1, 16.2) d’un même support électronique (16) disposé entre ledit module optique primaire (12) et ledit module optique secondaire (13).Light device (1) according to claim 3 and claim 4, according to which said at least one primary light source (120) and said at least one secondary light source (130) are arranged respectively on opposite faces (16.1, 16.2 ) of the same electronic support (16) disposed between said primary optical module (12) and said secondary optical module (13).
  7. Dispositif lumineux (1) selon la revendication 4 et la revendication 5, ou la revendication 6, selon lequel ladite au moins une source de lumière primaire (120) et ladite au moins une source de lumière secondaire (130) sont activables indépendamment l’une de l’autre. Light device (1) according to claim 4 and claim 5, or claim 6, according to which said at least one primary light source (120) and said at least one secondary light source (130) can be activated independently. the other.
  8. Dispositif lumineux (1) selon l’une quelconque des revendications précédentes, selon lequel ladite glace de sortie (14) comprend une première partie (140) intégrant ledit motif (m0) et une deuxième partie (141) disposée de part et d’autre de la première partie (140) configurée pour faire une jonction avec ledit boîtier (10).Light device (1) according to any one of the preceding claims, according to which said outlet glass (14) comprises a first part (140) integrating said pattern (m0) and a second part (141) arranged on either side of the first part (140) configured to make a junction with said housing (10).
  9. Dispositif lumineux (1) selon l’une quelconque des revendications précédentes, selon lequel ladite deuxième partie (141) de ladite glace de fermeture est opaque.Light device (1) according to any one of the preceding claims, according to which said second part (141) of said closing glass is opaque.
  10. Dispositif lumineux (1) selon l’une quelconque des revendications précédentes, selon lequel ledit dispositif lumineux (1) est un feu de stop surélevé.Light device (1) according to any one of the preceding claims, according to which said light device (1) is a high-mounted brake light.
PCT/EP2023/075667 2022-09-19 2023-09-18 Vehicle lighting device configured to perform a third brake light function WO2024061835A1 (en)

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FRFR2209410 2022-09-19
FR2209410A FR3139885A1 (en) 2022-09-19 2022-09-19 Vehicle lighting device configured to perform a high-mounted brake light function

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EP0603777B1 (en) * 1992-12-22 1997-02-26 Hughes Aircraft Company Holographic center high mounted stoplight system
US5709453A (en) * 1994-08-16 1998-01-20 Krent; Edward D. Vehicle lighting having remote light source
EP2965972A1 (en) * 2014-07-09 2016-01-13 Valeo Vision Module forming a bodywork element for motor vehicles contributing to the exterior esthetics of the vehicle
FR3037298A1 (en) * 2015-06-09 2016-12-16 Valeo Vision Belgique STOP LIGHT FOR REAR WINDOW OF MOTOR VEHICLE
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EP3527426A1 (en) * 2018-02-16 2019-08-21 Audi Ag Display device for a motor vehicle and motor vehicle with same
CN111692570B (en) * 2020-04-07 2022-08-30 武汉路特斯汽车有限公司 Structure and control method for projecting light show on vehicle exterior trim

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603777B1 (en) * 1992-12-22 1997-02-26 Hughes Aircraft Company Holographic center high mounted stoplight system
US5709453A (en) * 1994-08-16 1998-01-20 Krent; Edward D. Vehicle lighting having remote light source
EP2965972A1 (en) * 2014-07-09 2016-01-13 Valeo Vision Module forming a bodywork element for motor vehicles contributing to the exterior esthetics of the vehicle
FR3037298A1 (en) * 2015-06-09 2016-12-16 Valeo Vision Belgique STOP LIGHT FOR REAR WINDOW OF MOTOR VEHICLE
WO2018069792A1 (en) * 2016-10-14 2018-04-19 Hella Saturnus Slovenija Proizvodnja Svetlobne Opreme Za Motorna In Druga Vozila, D.O.O. Additional brake light for rear vehicle window having light guides
FR3067443A1 (en) * 2017-06-08 2018-12-14 Seat S.A. LIGHTING DEVICE FOR VEHICLE, AND ASSOCIATED HAY
US20180361916A1 (en) * 2017-06-19 2018-12-20 Valeo North America, Inc. Display system to display outside the vehicle
DE102017120244A1 (en) * 2017-09-04 2019-03-07 HELLA GmbH & Co. KGaA Additional brake light for vehicles
EP3527426A1 (en) * 2018-02-16 2019-08-21 Audi Ag Display device for a motor vehicle and motor vehicle with same
CN111692570B (en) * 2020-04-07 2022-08-30 武汉路特斯汽车有限公司 Structure and control method for projecting light show on vehicle exterior trim

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