WO2021209694A1 - Lens intended to close a lamp housing for a motor vehicle, comprising a wall and at least one light guide - Google Patents

Lens intended to close a lamp housing for a motor vehicle, comprising a wall and at least one light guide Download PDF

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Publication number
WO2021209694A1
WO2021209694A1 PCT/FR2021/050401 FR2021050401W WO2021209694A1 WO 2021209694 A1 WO2021209694 A1 WO 2021209694A1 FR 2021050401 W FR2021050401 W FR 2021050401W WO 2021209694 A1 WO2021209694 A1 WO 2021209694A1
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WO
WIPO (PCT)
Prior art keywords
partition
light guide
glass
motor vehicle
light
Prior art date
Application number
PCT/FR2021/050401
Other languages
French (fr)
Inventor
Rodolphe Peron
Damien SCHNURIGER
Original Assignee
Psa Automobiles Sa
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 Psa Automobiles Sa filed Critical Psa Automobiles Sa
Priority to EP21716490.4A priority Critical patent/EP4136384A1/en
Priority to CN202180028652.4A priority patent/CN115398145A/en
Publication of WO2021209694A1 publication Critical patent/WO2021209694A1/en

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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
    • 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
    • F21S43/237—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
    • F21S43/242—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
    • F21S43/26—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

Definitions

  • the present invention relates to the technical field of lighting and signaling of motor vehicles.
  • each motor vehicle be equipped with light signaling devices, so as to be able to warn other road users of the position of the motor vehicle and of the intentions of its driver.
  • An optical unit consists of an optical box, in which are present lighting devices such as high beam, tail light, reversing light, indicator light and position light.
  • the optical box is closed by a transparent glass, in order to protect the lighting devices from bad weather while allowing them to be seen by other road users.
  • the luminous devices are thus confined in optical boxes, closed by panes of planar or substantially planar shape.
  • the optical units are thus of little varied, little distinctive shapes.
  • the present invention aims to provide an original arrangement of an optical system through a glass, so as to allow the production of optical units of various and distinctive shapes.
  • the invention provides a lens intended to close an optical housing for a motor vehicle, comprising a partition and at least one light guide.
  • the invention is remarkable in that the partition is at least partially opaque and in that at least one light guide passes through said partition, so that a proximal end of the light guide is opposite. screw on an internal face of the septum and a distal end of the lumen guide is opposite an external face of the septum.
  • the invention provides the passage of one or more light guides through a glass, so that the end of at least one light guide is visible on the outside of an optical unit closed by said glass.
  • the visible face of the optical unit closed by the glass according to the invention has a three-dimensional shape that is much more distinctive than the flat or substantially flat shapes of current glasses.
  • the invention therefore proposes an original arrangement of a light guide through a lens, so as to allow the production of optical units of varied and distinctive shapes.
  • ice is meant a partition intended to close an opening of an optical housing, so as to prevent the introduction of humidity and dust through said opening.
  • the outer face of the partition is concave in shape. This embodiment advantageously makes it possible to position the distal end of the light guide passing through the partition, inside an optical housing.
  • the partition is opaque to daylight. This embodiment advantageously makes it possible to accentuate the aesthetics of the visible face of the optical unit, for example by allowing a color match between the external face of the partition and the body of a motor vehicle.
  • At least one light guide is of longitudinal shape. According to a preferred embodiment, at least one light guide is of planar shape.
  • the internal face of the partition is covered by a transparent support layer.
  • the backing layer is preferably transparent to daylight.
  • support layer is meant a layer giving the partition a stable or substantially stable mechanical strength during normal use as a lens for an optical unit.
  • the support layer also covers a proximal end of at least one light guide passing through the septum.
  • the distal end of at least one light guide has a shape favorable to the emission of a light beam through said end, at an angle of emission greater than 30 °, preferably for an emission angle greater than 40 ° or greater than 70 °.
  • a favorable shape can be a beveled, convex and / or grained shape.
  • the invention also relates to an optical unit comprising a window for a motor vehicle, closed by a window described above.
  • the invention also relates to a method of manufacturing a lens intended to close an optical housing for a motor vehicle, implementing the following steps:
  • the internal face of the partition is covered by a support layer as described above.
  • FIG. 1 shows a schematic longitudinal section of a mirror according to the invention
  • FIG. 2 shows a schematic longitudinal section of an optical unit comprising an optical box closed by a glass illustrated in Figure 1;
  • FIG. 3 represents a first step in the manufacture of an ice cream according to the invention
  • FIG. 4 shows a second step in the manufacture of an ice according to the invention
  • FIG. 5 shows a third step in the manufacture of an ice cream according to the invention
  • FIG. 6 represents a fourth step in the manufacture of an ice cream according to the invention.
  • the invention provides an original arrangement of an optical system through a glass, so as to allow the production of optical units of various and distinctive shapes.
  • Figure 1 illustrates a first non-limiting embodiment of a glass 2 according to the invention, intended to close an optical housing of an optical unit for a motor vehicle.
  • the mirror comprises an opaque partition 4, preferably black in color.
  • the partition is delimited by an internal face 6, intended to be facing the inside of an optical box, and an external face 8 opposite the internal face 6, intended to be in contact with the environment. outside the optical box.
  • the external face 8 of the partition is of concave shape, preferably of elliptical shape.
  • the internal face 6 is parallel or substantially parallel to the external face 8.
  • the thickness of the partition 4, defined in a direction normal to the external face 8, is between 2 mm and 10 mm, preferably between 2 mm and 5 mm.
  • the partition 4 is formed from a polymer-based material.
  • partition 4 is made from polymethyl methacrylate, also known by the abbreviation PMMA.
  • the ice 2 is crossed by two light guides 10 of planar shape.
  • the light guides are arranged so as to be parallel or substantially parallel to each other.
  • Each lumen guide 10 has a proximal end 12, facing the internal face 6 of the partition, and a distal end 14, facing the external face 8 of the partition.
  • the proximal ends 12A, 12B of the light guides are intended to be illuminated by light devices present in an optical box, and the distal ends 14A, 14B to project the light beams emitted by said devices outside the optical box.
  • the proximal and distal ends of a The same light guide can be moved a distance between 1 cm and 50 cm, preferably between 5 cm and 10 cm.
  • the distal ends of the light guides are preferably adapted according to the light signal emitted by the light devices illuminating them.
  • the light guide 10A is bevelled at its distal end 14A, in order to orient the light beam emitted in a desired direction.
  • the distal end 14B of the light guide 10B is convex in shape and its surface is grained, in order to promote a greater diffusion angle of the emitted light beam.
  • the light guides 10 are secured to the partition by known means, of the bonding, welding or other type.
  • a weld 16 produced by ultrasound connects each light guide 10 to the partition 4.
  • the welds 20 are made by vibration, ultrasound or light radiation (LASER).
  • the glass 2 also comprises a support layer 18, covering the proximal ends 12 of the light guides as well as the internal face 6 of the partition 4.
  • the support layer is transparent to daylight. and made from polymethyl methacrylate.
  • the support layer can advantageously enhance the mechanical strength of the partition, so as to allow the shape of the ice to be preserved during normal use.
  • the thickness of the support layer defined in a direction normal to the internal face 6 of the partition is between 2 mm and 10 mm, preferably between 2 mm and 5 mm.
  • the support layer 18 is provided with teeth 20, at its periphery, intended to bear against the edges of an optical housing, as illustrated below.
  • the support layer is held against the internal face 6 of the partition, so as to subsequently prevent the introduction of a liquid or a gas between the support layer 18 and the partition 4.
  • ultrasonic welds 20 are made between the partition 4 and the support layer 18, at their periphery, so as to seal the space between the partition and the support layer.
  • the welds 20 are made by vibration, ultrasound or light radiation (LASER).
  • Figure 2 now illustrates a schematic section of an optical unit 22 for a motor vehicle, comprising an optical box 24 closed by a glass 2 described above.
  • the optical box 24 comprises light devices 26 of the light-emitting diode type, arranged opposite the proximal ends 12 of the light guides, so as to allow the diffusion of light beams emitted by said devices, at the distal ends 14 light guides.
  • the lens 2 is held to the optical box 24, in a hermetic manner, by means of welds 20 made between the teeth 20 and the optical box.
  • the welds 20 are made by vibration, ultrasound or light radiation (LASER).
  • the lens 2 according to the invention allows the positioning of the distal ends 14 of the light guides outside the optical housing 24.
  • the light beams emitted by the distal ends of the light guides 10 do not are not likely to be deflected and / or absorbed by a transparent or partially transparent wall closing off the optical box.
  • the invention allows better control of the angles of photometric visibility of the light signals emitted by the optical unit 22.
  • the partial presence of the light guides outside the optical unit 24 gives an appearance in three dimensions of the visible face of the optical unit 22. It is thus possible to produce very diverse and varied shapes, so as to allow greater differentiation between the optical blocks, by playing for example on the positioning of the light guides between them and / or the protruding length of the light guides.
  • the present invention also relates to a method of manufacturing an ice cream 2 described above.
  • the manufacturing method according to the invention implements a first perforation step illustrated in Figure 3. During this step, passages 28 are formed through a partition 4 as described above.
  • the passages are dimensioned so as to allow the insertion of light guides 10 of planar shape, during a second step illustrated in Figure 4.
  • the light guides are secured to the partition by known means, such as glue or welds 16 made by ultrasound.
  • the internal face 6 of the partition is covered by a support layer 18.
  • the support layer is of complementary shape to the internal face 6, so as to facilitate their superposition .
  • the partition 4 and the support layer 18 are secured in a sealed manner by known means, such as glue or welds 20 produced by ultrasound.
  • the partition 4, the light guides 10 and the support layer 18 are made from a common material, polymethyl methacrylate, in order to facilitate and guarantee a good weld between them.

Abstract

The invention relates to a lens intended to close a lamp housing for a motor vehicle, comprising a wall and at least one light guide. The lens (2) has a wall (4) and at least one light guide (10A, 10B). The wall (4) is at least partially opaque, and at least one light guide (10A, 10B) passes through said wall (4), such that a proximal end (12A, 12B) of the light guide (10A, 10B) is opposite an inner face (6) of the wall (4) and a distal end (14A, 14B) of the light guide (10A, 10B) is opposite an outer face (8) of the wall (4).

Description

Description Description
« La présente invention revendique la priorité de la demande française 2003747 déposée le 15.04.2020 dont le contenu (texte, dessins et revendications) est ici incorporé par référence. » “The present invention claims the priority of French application 2003747 filed on April 15, 2020, the content of which (text, drawings and claims) is incorporated here by reference. "
Titre de l’invention : Glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumière Title of the invention: Glass intended to close an optical box for a motor vehicle, comprising a partition and at least one light guide
[0001] La présente invention concerne le domaine technique de l’éclairage et de la signalisation des véhicules automobiles. The present invention relates to the technical field of lighting and signaling of motor vehicles.
[0002] La réglementation impose que chaque véhicule automobile soit équipé de dispositifs lumineux de signalisation, de manière à pouvoir avertir les autres utilisateurs de la route de la position du véhicule automobile et des intentions de son conducteur. The regulations require that each motor vehicle be equipped with light signaling devices, so as to be able to warn other road users of the position of the motor vehicle and of the intentions of its driver.
[0003] Afin de faciliter l’assemblage des dispositifs d’éclairage et de signalisation sur les véhicules automobiles, ceux-ci sont regroupés dans des blocs optiques. Un bloc optique se compose d’un boîtier optique, dans lequel sont présents des dispositifs lumineux du type feu de route, feu arrière, feu de recul, feu de clignotant et feu de position. Le boîtier optique est obturé par une glace transparente, afin de protéger les dispositifs lumineux des intempéries tout en permettant leur visibilité par les autres utilisateurs de la route. Les dispositifs lumineux sont ainsi confinés dans des boîtiers optiques, obturés par des glaces de forme plane ou sensiblement plane. Les blocs optiques sont ainsi de formes peu variées, peu distinctives. [0003] In order to facilitate the assembly of lighting and signaling devices on motor vehicles, they are grouped together in optical units. An optical unit consists of an optical box, in which are present lighting devices such as high beam, tail light, reversing light, indicator light and position light. The optical box is closed by a transparent glass, in order to protect the lighting devices from bad weather while allowing them to be seen by other road users. The luminous devices are thus confined in optical boxes, closed by panes of planar or substantially planar shape. The optical units are thus of little varied, little distinctive shapes.
[0004] La présente invention vise à proposer un agencement original d’un système optique à travers une glace, de sorte à permettre la réalisation de blocs optiques de formes variées et distinctives. The present invention aims to provide an original arrangement of an optical system through a glass, so as to allow the production of optical units of various and distinctive shapes.
[0005] À cet effet, l’invention propose une glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumière. L’invention est remarquable en ce que la cloison est au moins partiellement opaque et en ce qu’au moins un guide de lumière traverse ladite cloison, de sorte qu’une extrémité proximale du guide de lumière soit en vis-à- vis d’une face interne de la cloison et qu’une extrémité distale du guide de lumière soit en vis-à-vis d’une face externe de la cloison. To this end, the invention provides a lens intended to close an optical housing for a motor vehicle, comprising a partition and at least one light guide. The invention is remarkable in that the partition is at least partially opaque and in that at least one light guide passes through said partition, so that a proximal end of the light guide is opposite. screw on an internal face of the septum and a distal end of the lumen guide is opposite an external face of the septum.
[0006] En d’autres termes, l’invention propose le passage d’un ou plusieurs guides de lumière à travers une glace, de sorte que l’extrémité d’au moins un guide de lumière soit apparente à l’extérieur d’un bloc optique obturé par ladite glace. Ainsi, la face visible du bloc optique obturé par la glace selon l’invention, présente une forme en trois dimensions nettement plus distinctives que les formes planes ou sensiblement plane des glaces actuelles. L’invention propose donc un agencement original d’un guide de lumière à travers une glace, de sorte à permettre la réalisation de blocs optiques de formes variées et distinctives. In other words, the invention provides the passage of one or more light guides through a glass, so that the end of at least one light guide is visible on the outside of an optical unit closed by said glass. Thus, the visible face of the optical unit closed by the glass according to the invention has a three-dimensional shape that is much more distinctive than the flat or substantially flat shapes of current glasses. The invention therefore proposes an original arrangement of a light guide through a lens, so as to allow the production of optical units of varied and distinctive shapes.
[0007] Par le terme « glace », on entend une cloison destinée à obturer une ouverture d’un boîtier optique, de sorte à empêcher l’introduction d’humidité et de poussières par ladite ouverture. By the term "ice" is meant a partition intended to close an opening of an optical housing, so as to prevent the introduction of humidity and dust through said opening.
[0008] Selon une variante de réalisation de l’invention, la face externe de la cloison est de forme concave. Ce mode de réalisation permet avantageusement de positionner l’extrémité distale du guide de lumière traversant la cloison, à l’intérieur d’un boîtier optique. [0008] According to an alternative embodiment of the invention, the outer face of the partition is concave in shape. This embodiment advantageously makes it possible to position the distal end of the light guide passing through the partition, inside an optical housing.
[0009] Selon une autre variante de réalisation de l’invention, la cloison est opaque à la lumière du jour. Ce mode de réalisation permet avantageusement d’accentuer l’esthétisme de la face visible du bloc optique, par exemple en permettant un accord de couleur entre la face externe de la cloison et la carosserie d’un véhicule automobile. [0009] According to another variant embodiment of the invention, the partition is opaque to daylight. This embodiment advantageously makes it possible to accentuate the aesthetics of the visible face of the optical unit, for example by allowing a color match between the external face of the partition and the body of a motor vehicle.
[0010] Selon une autre variante de réalisation de l’invention, au moins un guide de lumière est de forme longitudinale. Selon un mode de réalisation préférée, au moins un guide de lumière est de forme plane. [0010] According to another variant embodiment of the invention, at least one light guide is of longitudinal shape. According to a preferred embodiment, at least one light guide is of planar shape.
[0011] Selon une autre variante de réalisation de l’invention, la face interne de la cloison est recouverte par une couche de support transparente. La couche de support est de préférence transparente à la lumière du jour. Par les termes « couche de support », on entend une couche conférant à la cloison une tenue mécanique stable ou sensiblement stable lors d’une utilisation normale en tant que glace pour bloc optique. De préférence, la couche de support recouvre également une extrémité proximale d’au moins un guide de lumière traversant la cloison. [0012] Selon une autre variante de réalisation de l’invention, l’extrémité distale d’au moins un guide de lumière, comporte une forme favorable à l’émission d’un faisceau lumineux à travers ladite extrémité, selon un angle d’émission supérieur à 30°, de préférence pour un angle d’émission supérieur à 40° ou supérieur à 70°. Une forme favorable peut être une forme biseautée, convexe et/ou grainée. According to another variant embodiment of the invention, the internal face of the partition is covered by a transparent support layer. The backing layer is preferably transparent to daylight. By the terms “support layer” is meant a layer giving the partition a stable or substantially stable mechanical strength during normal use as a lens for an optical unit. Preferably, the support layer also covers a proximal end of at least one light guide passing through the septum. According to another variant embodiment of the invention, the distal end of at least one light guide has a shape favorable to the emission of a light beam through said end, at an angle of emission greater than 30 °, preferably for an emission angle greater than 40 ° or greater than 70 °. A favorable shape can be a beveled, convex and / or grained shape.
[0013] L’invention concerne également un bloc optique comprenant une glace pour véhicule automobile, obturé par une glace décrite ci-dessus. The invention also relates to an optical unit comprising a window for a motor vehicle, closed by a window described above.
[0014] L’invention concerne aussi un procédé de fabrication d’une glace destinée à obturer un boîtier optique pour un véhicule automobile, mettant en oeuvre les étapes suivantes : The invention also relates to a method of manufacturing a lens intended to close an optical housing for a motor vehicle, implementing the following steps:
[0015] - perforation d’une cloison au moins partiellement opaque, de sorte à ménager au moins un passage à travers la cloison ; puis [0015] - perforation of an at least partially opaque partition, so as to provide at least one passage through the partition; then
[0016] - insertion d’un guide de lumière dans au moins un passage, de sorte qu’une extrémité proximale du guide de lumière soit en vis-à-vis d’une face interne de la cloison et qu’une extrémité distale du guide de lumière soit en vis-à-vis d’une face externe de la cloison ; puis - Insertion of a light guide in at least one passage, so that a proximal end of the light guide is vis-à-vis an internal face of the partition and a distal end of the light guide is vis-à-vis an external face of the partition; then
[0017] - solidarisation du guide de lumière à la cloison. [0017] - securing of the light guide to the partition.
[0018] Selon une variante de réalisation, la face interne de la cloison est recouverte par une couche de support telle que décrite ci-dessus. According to an alternative embodiment, the internal face of the partition is covered by a support layer as described above.
[0019] D’autres avantages et caractéristiques pourront ressortir plus clairement de la description qui va suivre. [0019] Other advantages and characteristics will emerge more clearly from the description which follows.
[0020] L’invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d’exemple non limitative et faite en se référant aux dessins dans lesquels : The invention will be better understood on reading the description which follows, given solely by way of non-limiting example and made with reference to the drawings in which:
[0021] [Fig. 1] représente une coupe longitudinale schématique d’une glace selon l’invention ; [0021] [Fig. 1] shows a schematic longitudinal section of a mirror according to the invention;
[0022] [Fig. 2] représente une coupe longitudinale schématique d’un bloc optique comprenant un boîtier optique obturé par une glace illustrée par la figure 1 ; [0022] [Fig. 2] shows a schematic longitudinal section of an optical unit comprising an optical box closed by a glass illustrated in Figure 1;
[0023] [Fig. 3] représente une première étape de fabrication d’une glace selon l’invention ; [0023] [Fig. 3] represents a first step in the manufacture of an ice cream according to the invention;
[0024] [Fig. 4] représente une deuxième étape de fabrication d’une glace selon l’invention ; [0025] [Fig. 5] représente une troisième étape de fabrication d’une glace selon l’invention ; [0024] [Fig. 4] shows a second step in the manufacture of an ice according to the invention; [0025] [Fig. 5] shows a third step in the manufacture of an ice cream according to the invention;
[0026] [Fig. 6] représente une quatrième étape de fabrication d’une glace selon l’invention. [0026] [Fig. 6] represents a fourth step in the manufacture of an ice cream according to the invention.
[0027] Dans ces figures, les mêmes références sont utilisées pour désigner les mêmes éléments. In these figures, the same references are used to designate the same elements.
[0028] Pour rappel, l’invention propose un agencement original d’un système optique à travers une glace, de sorte à permettre la réalisation de blocs optiques de formes variées et distinctives. As a reminder, the invention provides an original arrangement of an optical system through a glass, so as to allow the production of optical units of various and distinctive shapes.
[0029] La figure 1 illustre un premier mode de réalisation non limitatif d’une glace 2 selon l’invention, destinée à obturer un boîtier optique d’un bloc optique pour véhicule automobile. [0029] Figure 1 illustrates a first non-limiting embodiment of a glass 2 according to the invention, intended to close an optical housing of an optical unit for a motor vehicle.
[0030] Selon ce premier mode de réalisation, la glace comprend une cloison 4 opaque, de préférence de couleur noire. La cloison est délimitée par une face interne 6, destinée à être en vis-à-vis de l’intérieur d’un boîtier optique, et une face externe 8 opposée à la face interne 6, destinée à être en contact avec l’environnement extérieur au boîtier optique. According to this first embodiment, the mirror comprises an opaque partition 4, preferably black in color. The partition is delimited by an internal face 6, intended to be facing the inside of an optical box, and an external face 8 opposite the internal face 6, intended to be in contact with the environment. outside the optical box.
[0031] Selon le présent exemple, la face externe 8 de la cloison est de forme concave, de préférence de forme elliptique. La face interne 6 est parallèle ou sensiblement parallèle à la face externe 8. According to the present example, the external face 8 of the partition is of concave shape, preferably of elliptical shape. The internal face 6 is parallel or substantially parallel to the external face 8.
[0032] L’épaisseur de la cloison 4, définie selon une direction normale à la face externe 8, est comprise entre 2 mm et 10 mm, de préférence entre 2 mm et 5 mm. La cloison 4 est formée à partir d’un matériau à base de polymère. À titre d’exemple non limitatif, la cloison 4 est réalisée à partir de polyméthacrylate de méthyle, également connu sous l’abrégé PMMA. The thickness of the partition 4, defined in a direction normal to the external face 8, is between 2 mm and 10 mm, preferably between 2 mm and 5 mm. The partition 4 is formed from a polymer-based material. By way of non-limiting example, partition 4 is made from polymethyl methacrylate, also known by the abbreviation PMMA.
[0033] La glace 2 est traversée par deux guides de lumière 10 de forme plane. Les guides de lumière sont agencés de sorte à être parallèles ou sensiblement parallèles entre eux. Chaque guide de lumière 10 comporte une extrémité proximale 12, en vis-à-vis de la face interne 6 de la cloison, et une extrémité distale 14, en vis-à-vis de la face externe 8 de la cloison. Les extrémités proximales 12A, 12B des guides de lumières sont destinées à être éclairées par des dispositifs lumineux présents dans un boîtier optique, et les extrémités distales 14A, 14B à projeter à l’extérieur du boîtier optique les faisceaux lumineux émis par lesdits dispositifs. Les extrémités proximales et distales d’un même guide de lumière peuvent être éloignées d’une distance comprise entre 1 cm et 50 cm, de préférence entre 5 cm et 10 cm. The ice 2 is crossed by two light guides 10 of planar shape. The light guides are arranged so as to be parallel or substantially parallel to each other. Each lumen guide 10 has a proximal end 12, facing the internal face 6 of the partition, and a distal end 14, facing the external face 8 of the partition. The proximal ends 12A, 12B of the light guides are intended to be illuminated by light devices present in an optical box, and the distal ends 14A, 14B to project the light beams emitted by said devices outside the optical box. The proximal and distal ends of a The same light guide can be moved a distance between 1 cm and 50 cm, preferably between 5 cm and 10 cm.
[0034] Les extrémités distales des guides de lumière sont de préférence adaptées en fonction du signal lumineux émis par les dispositifs lumineux les éclairant. Selon le présent exemple, le guide de lumière 10A est biseauté au niveau de son extrémité distale 14A, afin d’orienter le faisceau lumineux émis selon une direction souhaitée. L’extrémité distale 14B du guide de lumière 10B est de forme convexe et sa surface est grainée, afin de favoriser un angle de diffusion plus important du faisceau lumineux émis. The distal ends of the light guides are preferably adapted according to the light signal emitted by the light devices illuminating them. According to the present example, the light guide 10A is bevelled at its distal end 14A, in order to orient the light beam emitted in a desired direction. The distal end 14B of the light guide 10B is convex in shape and its surface is grained, in order to promote a greater diffusion angle of the emitted light beam.
[0035] Les guides de lumière 10 sont solidarisés à la cloison par des moyens connus, de type collage, soudage ou autre. Selon le présent exemple, une soudure 16 réalisée par ultrasons relie chaque guide de lumière 10 à la cloison 4. De préférence, les soudures 20 sont réalisées par vibrations, ultrasons ou rayonnement lumineux (LASER). The light guides 10 are secured to the partition by known means, of the bonding, welding or other type. According to the present example, a weld 16 produced by ultrasound connects each light guide 10 to the partition 4. Preferably, the welds 20 are made by vibration, ultrasound or light radiation (LASER).
[0036] La glace 2 comporte également une couche de support 18, recouvrant les extrémités proximales 12 des guides de lumière ainsi que la face interne 6 de la cloison 4. Selon le présent exemple, la couche de support est transparente à la lumière du jour et réalisée à partir de polyméthacrylate de méthyle. La couche de support peut avantageusement renforcer la tenue mécanique de la cloison, de manière à permettre la préservation de la forme de la glace lors d’une utilisation normale. Selon le présent exemple, l’épaisseur de la couche de support définie selon une direction normale à la face interne 6 de la cloison est comprise entre 2 mm et 10 mm, de préférence entre 2 mm et 5 mm. The glass 2 also comprises a support layer 18, covering the proximal ends 12 of the light guides as well as the internal face 6 of the partition 4. According to the present example, the support layer is transparent to daylight. and made from polymethyl methacrylate. The support layer can advantageously enhance the mechanical strength of the partition, so as to allow the shape of the ice to be preserved during normal use. According to the present example, the thickness of the support layer defined in a direction normal to the internal face 6 of the partition is between 2 mm and 10 mm, preferably between 2 mm and 5 mm.
[0037] La couche de support 18 est munie de dents 20, au niveau de sa périphérie, destinées à prendre appui contre les bords d’un boîtier optique, comme illustré ci-dessous. The support layer 18 is provided with teeth 20, at its periphery, intended to bear against the edges of an optical housing, as illustrated below.
[0038] De préférence, la couche de support est maintenue contre la face interne 6 de la cloison, de manière à prévenir ultérieurement l’introduction d’un liquide ou d’un gaz entre la couche de support 18 et la cloison 4. Selon le présent exemple, des soudures 20 par ultrasons sont réalisées entre la cloison 4 et la couche de support 18, au niveau de leur périphérie, de sorte à rendre étanche l’espace entre la cloison et la couche de support. De préférence, les soudures 20 sont réalisées par vibrations, ultrasons ou rayonnement lumineux (LASER). [0039] La figure 2 illustre à présent une coupe schématique d’un bloc optique 22 pour véhicule automobile, comprenant un boîtier optique 24 obturé par une glace 2 décrite ci-dessus. Le boîtier optique 24 comprend des dispositifs lumineux 26 de type diodes électroluminescents, agencés en vis-à-vis des extrémités proximales 12 des guides de lumières, de manière à permettre la diffusion de faisceaux lumineux émis par lesdits dispositifs, au niveau des extrémités distales 14 des guides de lumière. La glace 2 est maintenue au boîtier optique 24, de façon hermétique, par l’intermédiaire de soudures 20 réalisées entre les dents 20 et le boîtier optique. De préférence, les soudures 20 sont réalisées par vibrations, ultrasons ou rayonnement lumineux (LASER). Preferably, the support layer is held against the internal face 6 of the partition, so as to subsequently prevent the introduction of a liquid or a gas between the support layer 18 and the partition 4. According to In the present example, ultrasonic welds 20 are made between the partition 4 and the support layer 18, at their periphery, so as to seal the space between the partition and the support layer. Preferably, the welds 20 are made by vibration, ultrasound or light radiation (LASER). Figure 2 now illustrates a schematic section of an optical unit 22 for a motor vehicle, comprising an optical box 24 closed by a glass 2 described above. The optical box 24 comprises light devices 26 of the light-emitting diode type, arranged opposite the proximal ends 12 of the light guides, so as to allow the diffusion of light beams emitted by said devices, at the distal ends 14 light guides. The lens 2 is held to the optical box 24, in a hermetic manner, by means of welds 20 made between the teeth 20 and the optical box. Preferably, the welds 20 are made by vibration, ultrasound or light radiation (LASER).
[0040] De façon avantageuse, la glace 2 selon l’invention permet le positionnement des extrémités distales 14 des guides de lumière à l’extérieur du boîtier optique 24. Ainsi, les faisceaux lumineux émis par les extrémités distales des guides de lumière 10 ne sont pas susceptibles d’être déviés et/ou absorber par une paroi transparente ou partiellement transparente obturant le boîtier optique. De ce fait, l’invention permet un meilleur contrôle des angles de visibilité photométrique des signaux lumineux émis par le bloc optique 22. Selon un autre avantage, la présence partielle des guides de lumière à l’extérieur du boîtier optique 24 confère un aspect en trois dimensions de la face visible du bloc optique 22. Il est ainsi possible de réaliser des formes très diverses et variées, de sorte à permettre une plus grande différenciation entre les bloques optiques, en jouant par exemple sur le positionnement des guides lumières entre eux et/ou la longueur saillante des guides de lumières. Advantageously, the lens 2 according to the invention allows the positioning of the distal ends 14 of the light guides outside the optical housing 24. Thus, the light beams emitted by the distal ends of the light guides 10 do not are not likely to be deflected and / or absorbed by a transparent or partially transparent wall closing off the optical box. As a result, the invention allows better control of the angles of photometric visibility of the light signals emitted by the optical unit 22. According to another advantage, the partial presence of the light guides outside the optical unit 24 gives an appearance in three dimensions of the visible face of the optical unit 22. It is thus possible to produce very diverse and varied shapes, so as to allow greater differentiation between the optical blocks, by playing for example on the positioning of the light guides between them and / or the protruding length of the light guides.
[0041] La présente invention porte également sur un procédé de fabrication d’une glace 2 décrite ci-dessus. The present invention also relates to a method of manufacturing an ice cream 2 described above.
[0042] Le procédé de fabrication selon l’invention, met en œuvre une première étape de perforation illustrée par la figure 3. Lors de cette étape, des passages 28 sont ménagés à travers une cloison 4 telle que décrite ci-dessus. The manufacturing method according to the invention implements a first perforation step illustrated in Figure 3. During this step, passages 28 are formed through a partition 4 as described above.
[0043] Les passages sont dimensionnés de manière à permettre l’insertion de guides de lumière 10 de forme plane, lors d’une deuxième étape illustrée par la figure 4. The passages are dimensioned so as to allow the insertion of light guides 10 of planar shape, during a second step illustrated in Figure 4.
[0044] Lors d’une troisième étape illustrée par la figure 5, les guides de lumière sont solidarisés à la cloison par des moyens connus, de type colle ou soudures 16 réalisées par ultrasons. [0045] Lors d’une quatrième étape illustrée par la figure 6, la face interne 6 de la cloison est recouverte par une couche de support 18. La couche de support est de forme complémentaire à la face interne 6, de manière faciliter leur superposition. [0046] Lors d’une cinquième étape illustrée par la figure 1 , la cloison 4 et la couche de support 18 sont solidarisée de façon étanche par des moyens connus, de type colle ou soudures 20 réalisées par ultrasons. De préférence, la cloison 4, les guides de lumière 10 et la couche de support 18 sont réalisées à partir d’un matériau commun, le polyméthacrylate de méthyle, afin de faciliter et garantir une bonne soudure entre elles. In a third step illustrated in Figure 5, the light guides are secured to the partition by known means, such as glue or welds 16 made by ultrasound. In a fourth step illustrated in Figure 6, the internal face 6 of the partition is covered by a support layer 18. The support layer is of complementary shape to the internal face 6, so as to facilitate their superposition . In a fifth step illustrated in Figure 1, the partition 4 and the support layer 18 are secured in a sealed manner by known means, such as glue or welds 20 produced by ultrasound. Preferably, the partition 4, the light guides 10 and the support layer 18 are made from a common material, polymethyl methacrylate, in order to facilitate and guarantee a good weld between them.

Claims

REVENDICATIONS
[Revendication 1] Glace (2) destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison (4) et au moins un guide de lumière (10A, 10B), caractérisé en ce que la cloison (4) est au moins partiellement opaque et en ce qu’au moins un guide de lumière (1 OA, 10B) traverse ladite cloison (4) de sorte qu’une extrémité proximale (12A, 12B) du guide de lumière (10A, 10B) soit en vis-à-vis d’une face interne (6) de la cloison (4) et qu’une extrémité distale (14A, 14B) du guide de lumière (1 OA, 10B) soit en vis-à-vis d’une face externe (8) de la cloison (4). [Claim 1] Glass (2) intended to close an optical housing for a motor vehicle, comprising a partition (4) and at least one light guide (10A, 10B), characterized in that the partition (4) is at least partially opaque and in that at least one light guide (1 OA, 10B) passes through said partition (4) so that a proximal end (12A, 12B) of the light guide (10A, 10B) is facing -vis an internal face (6) of the partition (4) and that a distal end (14A, 14B) of the light guide (1 OA, 10B) is opposite an external face ( 8) of the partition (4).
[Revendication 2] Glace (2) selon la revendication 1 , caractérisée en ce que la face externe (8) de la cloison (4) est de forme concave. [Claim 2] Glass (2) according to claim 1, characterized in that the external face (8) of the partition (4) is of concave shape.
[Revendication 3] Glace (2) selon la revendication 1 ou 2, caractérisée en ce que la cloison (4) est opaque à la lumière du jour. [Claim 3] Glass (2) according to claim 1 or 2, characterized in that the partition (4) is opaque to daylight.
[Revendication 4] Glace (2) selon l’une des revendications 1 à 3, caractérisée en ce qu’au moins un guide de lumière (10A, 10B) est de forme longitudinale. [Claim 4] Glass (2) according to one of claims 1 to 3, characterized in that at least one light guide (10A, 10B) is of longitudinal shape.
[Revendication 5] Glace (2) selon l’une des revendications 1 à 4, caractérisée en ce que la face interne (6) de la cloison (4) est recouverte par une couche de support (18) transparente. [Claim 5] Glass (2) according to one of claims 1 to 4, characterized in that the internal face (6) of the partition (4) is covered by a transparent support layer (18).
[Revendication 6] Glace (2) selon la revendication 5, caractérisée en ce que la couche de support (18) recouvre également une extrémité proximale (12A, 12B) d’au moins un guide de lumière (1 OA, 10B) traversant la cloison (4). [Claim 6] Lens (2) according to claim 5, characterized in that the support layer (18) also covers a proximal end (12A, 12B) of at least one light guide (1 OA, 10B) passing through the partition (4).
[Revendication 7] Glace (2) selon l’une des revendications 1 à 6, caractérisée en ce que l’extrémité distale (14A, 14B) d’au moins un guide de lumière (10A, 10B), comporte une forme biseautée, convexe et/ou grainée, permettant l’émission d’un faisceau lumineux à travers ladite extrémité, selon un angle d’émission supérieur à 30°. [Claim 7] Lens (2) according to one of claims 1 to 6, characterized in that the distal end (14A, 14B) of at least one light guide (10A, 10B) has a bevelled shape, convex and / or grained, allowing the emission of a light beam through said end, at an emission angle greater than 30 °.
[Revendication 8] Bloc optique (22) pour véhicule automobile, comprenant une glace (2) selon l’une des revendications 1 à 7, obturant une ouverture d’un boîtier optique (24). [Revendication 9] Procédé de fabrication d’une glace (2) destinée à obturer un boîtier optique pour un véhicule automobile, caractérisé en ce que le procédé met en œuvre les étapes suivantes : [Claim 8] Optical unit (22) for a motor vehicle, comprising a glass (2) according to one of claims 1 to 7, closing an opening of an optical housing (24). [Claim 9] A method of manufacturing a lens (2) intended to close an optical box for a motor vehicle, characterized in that the method implements the following steps:
- perforation d’une cloison (4) au moins partiellement opaque de sorte à ménager au moins un passage (28) à travers la cloison (4) ; puis - Perforating a partition (4) at least partially opaque so as to provide at least one passage (28) through the partition (4); then
- insertion d’un guide de lumière (10A, 10B) dans au moins un passage (28) de sorte qu’une extrémité proximale (12A, 12B) du guide de lumière (10A, 10B) soit en vis-à-vis d’une face interne (6) de la cloison (4) et qu’une extrémité distale (14A, 14B) du guide de lumière (10A, 10B) soit en vis-à-vis d’une face externe (8) de la cloison (4) ; puis - insertion of a light guide (10A, 10B) in at least one passage (28) so that a proximal end (12A, 12B) of the light guide (10A, 10B) is opposite 'an internal face (6) of the partition (4) and that a distal end (14A, 14B) of the light guide (10A, 10B) is opposite an external face (8) of the partition (4); then
- solidarisation du guide de lumière (10A, 10B) à la cloison (4). [Revendication 10] Procédé de fabrication d’une glace (2) selon la revendication 9, caractérisé en ce que la face interne (6) de la cloison (4) est recouverte par une couche de support (18) transparente. - securing of the light guide (10A, 10B) to the partition (4). [Claim 10] A method of manufacturing an ice (2) according to claim 9, characterized in that the internal face (6) of the partition (4) is covered by a transparent support layer (18).
PCT/FR2021/050401 2020-04-15 2021-03-10 Lens intended to close a lamp housing for a motor vehicle, comprising a wall and at least one light guide WO2021209694A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP21716490.4A EP4136384A1 (en) 2020-04-15 2021-03-10 Lens intended to close a lamp housing for a motor vehicle, comprising a wall and at least one light guide
CN202180028652.4A CN115398145A (en) 2020-04-15 2021-03-10 Lens for closing an optical housing of a motor vehicle, comprising a baffle and at least one light guide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2003747A FR3109427A1 (en) 2020-04-15 2020-04-15 Glass intended to close an optical housing for a motor vehicle, comprising a partition and at least one light guide
FRFR2003747 2020-04-15

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WO2021209694A1 true WO2021209694A1 (en) 2021-10-21

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EP (1) EP4136384A1 (en)
CN (1) CN115398145A (en)
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748981A1 (en) * 1977-11-02 1979-05-03 Reitter & Schefenacker Kg Vehicle lighting unit comprises reflector with light bulb and cover - which is two-ply laminate of clear polycarbonate and transparent opt. coloured PMMA
EP2681485A1 (en) * 2011-03-04 2014-01-08 Automotive Lighting Italia S.p.A. Automotive lighting unit
DE102012022277A1 (en) * 2012-11-14 2014-05-15 Volkswagen Aktiengesellschaft Lighting device, particularly for vehicle, has lens with layer of panel material and another layer of same or another panel material, where structuring is arranged in one layer outside light image of light source
FR3002895A1 (en) * 2013-03-05 2014-09-12 Peugeot Citroen Automobiles Sa DIRECTION CHANGE INDICATION DEVICE OF A VEHICLE WITH A LIGHT GUIDE AND OPALIN SCREEN
FR3014787A1 (en) * 2013-12-12 2015-06-19 Peugeot Citroen Automobiles Sa LIGHT SIGNALING DIPOSITIVE
FR3046579A1 (en) * 2016-01-11 2017-07-14 Peugeot Citroen Automobiles Sa OPTICAL BLOCK COMPRISING A SIGNALING LIGHT WITH A FLAT LIGHT GUIDE OF ITS EXTERIOR ICE
EP3492807A1 (en) * 2017-11-30 2019-06-05 PSA Automobiles SA Lighting device with guide(s) for source light(s) of invisible photon(s), for a vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748981A1 (en) * 1977-11-02 1979-05-03 Reitter & Schefenacker Kg Vehicle lighting unit comprises reflector with light bulb and cover - which is two-ply laminate of clear polycarbonate and transparent opt. coloured PMMA
EP2681485A1 (en) * 2011-03-04 2014-01-08 Automotive Lighting Italia S.p.A. Automotive lighting unit
DE102012022277A1 (en) * 2012-11-14 2014-05-15 Volkswagen Aktiengesellschaft Lighting device, particularly for vehicle, has lens with layer of panel material and another layer of same or another panel material, where structuring is arranged in one layer outside light image of light source
FR3002895A1 (en) * 2013-03-05 2014-09-12 Peugeot Citroen Automobiles Sa DIRECTION CHANGE INDICATION DEVICE OF A VEHICLE WITH A LIGHT GUIDE AND OPALIN SCREEN
FR3014787A1 (en) * 2013-12-12 2015-06-19 Peugeot Citroen Automobiles Sa LIGHT SIGNALING DIPOSITIVE
FR3046579A1 (en) * 2016-01-11 2017-07-14 Peugeot Citroen Automobiles Sa OPTICAL BLOCK COMPRISING A SIGNALING LIGHT WITH A FLAT LIGHT GUIDE OF ITS EXTERIOR ICE
EP3492807A1 (en) * 2017-11-30 2019-06-05 PSA Automobiles SA Lighting device with guide(s) for source light(s) of invisible photon(s), for a vehicle

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CN115398145A (en) 2022-11-25
EP4136384A1 (en) 2023-02-22
FR3109427A1 (en) 2021-10-22

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