EP3052854A1 - Lighting device with an open partition for shifting the area of impact of solar beams passing through a lens - Google Patents

Lighting device with an open partition for shifting the area of impact of solar beams passing through a lens

Info

Publication number
EP3052854A1
EP3052854A1 EP14787225.3A EP14787225A EP3052854A1 EP 3052854 A1 EP3052854 A1 EP 3052854A1 EP 14787225 A EP14787225 A EP 14787225A EP 3052854 A1 EP3052854 A1 EP 3052854A1
Authority
EP
European Patent Office
Prior art keywords
partition
lens
lighting device
space
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14787225.3A
Other languages
German (de)
French (fr)
Other versions
EP3052854B1 (en
Inventor
Filipe Videira
Alain CARROUGET
Gilles Moynier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
Peugeot Citroen 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 Peugeot Citroen Automobiles SA filed Critical Peugeot Citroen Automobiles SA
Publication of EP3052854A1 publication Critical patent/EP3052854A1/en
Application granted granted Critical
Publication of EP3052854B1 publication Critical patent/EP3052854B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers

Definitions

  • the invention relates to lighting devices which comprise a lens and which are exposed to sunlight.
  • the term "lighting device” is understood here to mean a luminous device capable of providing at least one illumination function, chosen from among the lighting and signaling.
  • Some systems which are at least from time to time exposed to the sun, include at least one lighting device having a lens participating in an illumination function. This is for example the case of certain vehicles, possibly of the automotive type.
  • This lens is housed in a space that is partially delimited by a partition of a plastic part which defines in particular a functional and / or decorative mask, and by an ice (glass or plastic).
  • the lens may at times receive incident solar rays that have passed through the ice. This reception depends on the relative position of the lighting device (and thus the system it equips) relative to the sun.
  • the paths of these solar rays are deflected (focused) by the lens towards an area that includes a portion of the partition of the mask defining part.
  • the impacts of these deflected solar rays on this part of partition locally cause a very strong increase in temperature, especially when the color of the partition is black, which induces degradation or melting of the plastic material.
  • the partition portion may be coated with a reflective layer (for example a metallization) intended to reflect a large part of the deflected solar rays. But this changes the appearance of the partition, even its color, which is detrimental to aesthetics.
  • a reflective layer for example a metallization
  • Another solution consists in removing from the lens the partition defining the mask so that the deflected solar rays are no longer substantially focused on it. But this induces an increase in the dimensions and weight of the lighting device, which is rarely acceptable.
  • Yet another solution is to create a wall above and on the outside of the lens to prevent sunlight from reaching it. But this induces an increase in the size and weight of the lighting device, and is disadvantageous in terms of aesthetics.
  • the invention therefore aims to improve the situation.
  • a lighting device comprising a first part comprising a first partition which partially delimits a first space accommodating a lens which participates in a first illumination function and which is capable of focusing solar rays substantially in a predefined part of the first partition.
  • its first partition comprises an opening encompassing the predefined part so that the solar rays issuing from the lens terminate in an unfocused manner in a selected zone of the second partition.
  • the lighting device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular:
  • the first partition may comprise a face oriented towards the lens and having a chosen color
  • the second partition may comprise a face oriented towards the first partition and having this chosen color; the color chosen may be black;
  • its second piece may at least partially delimit a second space which is located next to the first
  • its second part may surround the lens to provide a mask function.
  • the second partition is an extension of this mask, placed behind the first
  • - Its lens can be semi-elliptical.
  • the invention also proposes an optical unit comprising at least one lighting device of the type of that presented above.
  • the invention also proposes a vehicle, possibly of automobile type, and comprising at least one optical block of the type of that presented above.
  • FIG. 1 schematically illustrates, in a perspective view of the front side, a small portion of an optical unit comprising a first exemplary embodiment of a lighting device according to the invention
  • FIG. 2 schematically illustrates, in a perspective view of the front side, a part of the lighting device of FIG. 1, without the first part and before it is integrated in an optical unit,
  • FIG. 3 schematically illustrates, in a perspective view of the front side, a part of a second exemplary embodiment of a lighting device according to the invention, without the first part and before its
  • FIG. 4 schematically illustrates, in a sectional view along the axis IV-IV of FIG. 1, a part of the optical block of FIG.
  • the invention aims in particular to provide a lighting device D for filling at least one lighting function (lighting or signaling).
  • the lighting device D is intended to be part of an optical block BO (very partially shown in FIGS. 1 and 4) of a vehicle. , possibly of automotive type. But the invention is not limited to this application. Indeed, a lighting device D, according to the invention, can equip any type of system, equipment, device or device, including interior or exterior walls of buildings.
  • optical block BO can be both a headlight (or headlight), a rear light.
  • FIGS. 1 and 4 show schematically a portion of an optical block BO comprising a first exemplary embodiment of a lighting device D according to the invention.
  • This optical block BO comprises a LV box (very partially illustrated) housing the lighting device D.
  • a lighting device D comprises at least a first piece P1, a lens L and a second piece P2.
  • the first piece P1 comprises a first partition C1 which partially defines a first space E1 housing a lens L which participates in a first illumination function.
  • this lens L is of semi-elliptical shape.
  • this lens L is placed behind a light source (not shown) in order to shape in a predefined manner (depending on its first illumination function) the photons it delivers.
  • This light source has a technology that depends on the first lighting function in which it participates.
  • this first illumination function can be a function of low beam (or code) and / or high beam.
  • the first partition C1 is placed to the right of the lens L. Therefore, the left part of the first space E1 is here delimited by an ice (glass or plastic), not shown and by which can penetrate the incident solar rays.
  • the lighting device D can also and optionally comprise an additional metallized mask R placed in the extension of the lens L in the vicinity of its mask ML and intended to reflect the photons. .
  • the first partition C1 defines for example a mask whose at least the face which is oriented towards the lens L has a chosen color, for example black.
  • the first piece P1 can be made by molding or injection of a plastic or synthetic material, such as PMMA.
  • the periphery of the lens L is preferably surrounded by a piece ML which defines a mask against which an edge of the first piece P1 (and
  • this mask ML is preferably identical to that of the first partition C1 (here black).
  • the lens L focuses solar rays incident substantially in a predefined part of the first partition C1, as illustrated in FIG. 4.
  • the invention proposes that the latter (C1) comprises an opening OP encompassing its predefined part. Moreover, for this opening OP to be visible, the invention proposes, as illustrated in FIGS. 1 to 4, to place a second partition
  • This second partition C2 is advantageously a part which is added to a second part P2 forming part of the lighting device D and already ensuring
  • the solar rays deflected by the lens L pass through the opening OP, where they are substantially focused by this lens L, and end in a non-focused manner in a selected zone Z of the second partition C2 which is placed a short distance behind the first partition C1.
  • these solar rays arrive defocused on the chosen zone Z (see FIG. 4), they are no longer liable to locally induce degradation, either on the first partition C1 or on the second partition C2.
  • At least the face of the second partition C2, which is oriented towards the first partition C1 may have the chosen color of the face of the first partition C1 which is oriented towards the lens L.
  • this selected color is black as indicated above.
  • the second piece P2 can be made by molding or injection of a plastic or synthetic material, such as PMMA.
  • the second piece P2 delimits at least partially a second space E2 which is situated next to the first space E1 and which houses at least one element
  • the second partition C2 thus constitutes an extension of this second piece P2 which is placed behind the first partition C1.
  • this second illumination function can be a function of position (or pilot) or fog lamp
  • warning light or flashing light
  • DRL daytime running light
  • the second piece P2 is the mask ML which surrounds the periphery of the lens L, and therefore the second partition C2 constitutes an extension of this mask ML which is placed behind the first partition C1.
  • a third piece P3 at least partially delimits a second space E2 which is located next to the first space E1 and which houses at least one element
  • This third piece P3 is possibly part of the lighting device D.
  • the invention offers several advantages, among which: it avoids having to integrate an additional piece in the lighting device, and therefore does not induce an increase in its bulk,

Abstract

The invention relates to a lighting device (D) comprising a first part (P1) having a first partition (C1) partially defining a first space (E1) housing a lens (L) participating in a first lighting function and used to focus solar beams substantially in a predefined portion of the first partition (C1), and a second part (P2) having a second partition (C2) placed at least behind the pre-defined portion. The first partition (C1) comprises an opening (OP) containing the pre-defined portion such that the solar beams from the lens (L) reach a selected area (Z) of the second partition (C2) in a non-focused manner.

Description

DISPOSITIF D'ÉCLAIRAGE À CLOISON OUVERTE POUR DÉCALER LA ZONE D'IMPACT DE RAYONS SOLAIRES TRAVERSANT UNE LENTILLE  OPEN-PARTITION LIGHTING DEVICE FOR OFFSETTING THE SOLAR-RAY IMPACT ZONE CROSSING A LENS
L'invention concerne les dispositifs d'éclairage qui comportent une lentille et qui sont exposés à la lumière du soleil. The invention relates to lighting devices which comprise a lens and which are exposed to sunlight.
On entend ici par « dispositif d'éclairage » un dispositif lumineux pouvant assurer au moins une fonction d'éclairement, choisie parmi l'éclairage et la signalisation.  The term "lighting device" is understood here to mean a luminous device capable of providing at least one illumination function, chosen from among the lighting and signaling.
Certains systèmes, qui sont au moins de temps en temps exposés au soleil, comprennent au moins un dispositif d'éclairage muni d'une lentille participant à une fonction d'éclairement. C'est par exemple le cas de certains véhicules, éventuellement de type automobile. Cette lentille est logée dans un espace qui est délimité partiellement par une cloison d'une pièce en matière plastique qui définit notamment un masque fonctionnel et/ou décoratif, et par une glace (en verre ou en matière plastique).  Some systems, which are at least from time to time exposed to the sun, include at least one lighting device having a lens participating in an illumination function. This is for example the case of certain vehicles, possibly of the automotive type. This lens is housed in a space that is partially delimited by a partition of a plastic part which defines in particular a functional and / or decorative mask, and by an ice (glass or plastic).
En raison de cet agencement, la lentille peut recevoir à certains instants des rayons solaires incidents qui ont traversé la glace. Cette réception dépend effectivement de la position relative du dispositif d'éclairage (et donc du système qu'il équipe) par rapport au soleil. Les trajets de ces rayons solaires sont défléchis (focalisés) par la lentille en direction d'une zone qui comprend une partie de la cloison de la pièce définissant un masque. Les impacts de ces rayons solaires défléchis sur cette partie de cloison provoquent localement une très forte augmentation de la température, en particulier lorsque la couleur de la cloison est noire, ce qui induit une dégradation, voire la fonte, du matériau plastique. Because of this arrangement, the lens may at times receive incident solar rays that have passed through the ice. This reception depends on the relative position of the lighting device (and thus the system it equips) relative to the sun. The paths of these solar rays are deflected (focused) by the lens towards an area that includes a portion of the partition of the mask defining part. The impacts of these deflected solar rays on this part of partition locally cause a very strong increase in temperature, especially when the color of the partition is black, which induces degradation or melting of the plastic material.
Afin d'éviter cette dégradation ou cette fonte, on peut revêtir la partie de cloison d'une couche réfléchissante (par exemple une métallisation) destinée à réfléchir une grande partie des rayons solaires défléchis. Mais cela modifie l'aspect de la cloison, voire sa couleur, ce qui nuit à l'esthétisme.  In order to avoid this degradation or melting, the partition portion may be coated with a reflective layer (for example a metallization) intended to reflect a large part of the deflected solar rays. But this changes the appearance of the partition, even its color, which is detrimental to aesthetics.
Une autre solution consiste à écarter de la lentille la cloison définissant le masque afin que les rayons solaires défléchis ne soient plus sensiblement focalisés sur elle. Mais cela induit une augmentation des dimensions et du poids du dispositif d'éclairage, ce qui est rarement acceptable. Another solution consists in removing from the lens the partition defining the mask so that the deflected solar rays are no longer substantially focused on it. But this induces an increase in the dimensions and weight of the lighting device, which is rarely acceptable.
Encore une autre solution consiste à ajouter dans le dispositif 5 d'éclairage un écran thermique en métal. Mais cela augmente les coûts, et s'avère pénalisant sur le plan de l'esthétisme. Yet another solution is to add in the lighting device 5 a metal heat shield. But this increases the costs, and is penalizing in terms of aesthetics.
Encore une autre solution consiste à créer un muret au-dessus et sur le côté extérieur de la lentille afin d'empêcher les rayons solaires de l'atteindre. Mais cela induit une augmentation des dimensions et du poids du ) dispositif d'éclairage, et s'avère pénalisant sur le plan de l'esthétisme.  Yet another solution is to create a wall above and on the outside of the lens to prevent sunlight from reaching it. But this induces an increase in the size and weight of the lighting device, and is disadvantageous in terms of aesthetics.
L'invention a donc pour but d'améliorer la situation.  The invention therefore aims to improve the situation.
Elle propose notamment à cet effet un dispositif d'éclairage comprenant une première pièce comportant une première cloison qui délimite partiellement un premier espace logeant une lentille qui participe à une 5 première fonction d'éclairement et qui est propre à focaliser des rayons solaires sensiblement dans une partie prédéfinie de la première cloison.  In particular, it proposes for this purpose a lighting device comprising a first part comprising a first partition which partially delimits a first space accommodating a lens which participates in a first illumination function and which is capable of focusing solar rays substantially in a predefined part of the first partition.
Ce dispositif d'éclairage se caractérise par le fait :  This lighting device is characterized by the fact:
- qu'il comprend une seconde pièce comportant une seconde cloison placée au moins derrière la partie prédéfinie de la première cloison, et  it comprises a second part comprising a second partition placed at least behind the predefined portion of the first partition, and
) - que sa première cloison comprend une ouverture englobant la partie prédéfinie de sorte que les rayons solaires issus de la lentille aboutissent de façon non focalisée dans une zone choisie de la seconde cloison.  its first partition comprises an opening encompassing the predefined part so that the solar rays issuing from the lens terminate in an unfocused manner in a selected zone of the second partition.
Grâce à la présence d'une ouverture dans la première cloison et à l'existence de cette seconde cloison placée derrière cette ouverture, les 5 rayons solaires défléchis par la lentille sont désormais focalisés dans une zone qui est dépourvue de matière plastique et donc ne peuvent dégrader ni la première cloison, ni la seconde cloison.  Thanks to the presence of an opening in the first partition and the existence of this second partition placed behind this opening, the 5 solar rays deflected by the lens are now focused in an area that is devoid of plastic and therefore can not degrade neither the first partition nor the second partition.
Le dispositif d'éclairage selon l'invention peut comporter d'autres caractéristiques qui peuvent être prises séparément ou en combinaison, et ) notamment :  The lighting device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular:
- la première cloison peut comprendre une face orientée vers la lentille et présentant une couleur choisie, et la seconde cloison peut comprendre une face orientée vers la première cloison et présentant cette couleur choisie ; la couleur choisie peut être noire ; the first partition may comprise a face oriented towards the lens and having a chosen color, and the second partition may comprise a face oriented towards the first partition and having this chosen color; the color chosen may be black;
- dans un premier mode de réalisation, sa seconde pièce peut délimiter au moins partiellement un second espace qui est situé à côté du premier in a first embodiment, its second piece may at least partially delimit a second space which is located next to the first
5 espace, derrière la première cloison, et loge au moins un élément participant à une seconde fonction d'éclairement ; 5 space, behind the first partition, and houses at least one element participating in a second illumination function;
- dans un second mode de réalisation, sa seconde pièce peut entourer la lentille pour assurer une fonction de masque. Dans ce cas, la seconde cloison constitue une extension de ce masque, placée derrière la première in a second embodiment, its second part may surround the lens to provide a mask function. In this case, the second partition is an extension of this mask, placed behind the first
) cloison ; ) partition;
- sa lentille peut être semi-elliptique.  - Its lens can be semi-elliptical.
L'invention propose également un bloc optique comprenant au moins un dispositif d'éclairage du type de celui présenté ci-avant.  The invention also proposes an optical unit comprising at least one lighting device of the type of that presented above.
L'invention propose également un véhicule, éventuellement de type 5 automobile, et comprenant au moins un bloc optique du type de celui présenté ci-avant.  The invention also proposes a vehicle, possibly of automobile type, and comprising at least one optical block of the type of that presented above.
D'autres caractéristiques et avantages de l'invention apparaîtront à l'examen de la description détaillée ci-après, et des dessins annexés (obtenus en CAO/DAO, d'où le caractère apparemment discontinu de certaines lignes), ) sur lesquels :  Other features and advantages of the invention will appear on examining the detailed description below, and the accompanying drawings (obtained in CAD / DAO, hence the apparently discontinuous character of certain lines), in which:
- la figure 1 illustre schématiquement, dans une vue en perspective du côté avant, une petite partie d'un bloc optique comprenant un premier exemple de réalisation d'un dispositif d'éclairage selon l'invention,  FIG. 1 schematically illustrates, in a perspective view of the front side, a small portion of an optical unit comprising a first exemplary embodiment of a lighting device according to the invention,
- la figure 2 illustre schématiquement, dans une vue en perspective du côté 5 avant, une partie du dispositif d'éclairage de la figure 1 , sans la première pièce et avant son intégration dans un bloc optique,  FIG. 2 schematically illustrates, in a perspective view of the front side, a part of the lighting device of FIG. 1, without the first part and before it is integrated in an optical unit,
- la figure 3 illustre schématiquement, dans une vue en perspective du côté avant, une partie d'un second exemple de réalisation d'un dispositif d'éclairage selon l'invention, sans la première pièce et avant son FIG. 3 schematically illustrates, in a perspective view of the front side, a part of a second exemplary embodiment of a lighting device according to the invention, without the first part and before its
) intégration dans un bloc optique, et ) integration into an optical block, and
- la figure 4 illustre schématiquement, dans une vue en coupe selon l'axe IV- IV de la figure 1 , une partie du bloc optique de la figure 1 . L'invention a notamment pour but de proposer un dispositif d'éclairage D permettant de remplir au moins une fonction d'éclairement (éclairage ou signalisation). FIG. 4 schematically illustrates, in a sectional view along the axis IV-IV of FIG. 1, a part of the optical block of FIG. The invention aims in particular to provide a lighting device D for filling at least one lighting function (lighting or signaling).
Dans ce qui suit, on considère, à titre d'exemple non limitatif, que le 5 dispositif d'éclairage D est destiné à faire partie d'un bloc optique BO (très partiellement représenté sur les figures 1 et 4) d'un véhicule, éventuellement de type automobile. Mais l'invention n'est pas limitée à cette application. En effet, un dispositif d'éclairage D, selon l'invention, peut équiper tout type de système, équipement, appareil ou dispositif, y compris des murs intérieurs ou ) extérieurs de bâtiment.  In what follows, it is considered, by way of nonlimiting example, that the lighting device D is intended to be part of an optical block BO (very partially shown in FIGS. 1 and 4) of a vehicle. , possibly of automotive type. But the invention is not limited to this application. Indeed, a lighting device D, according to the invention, can equip any type of system, equipment, device or device, including interior or exterior walls of buildings.
On notera que le bloc optique BO peut être aussi bien un phare (ou projecteur avant), qu'un feu arrière.  It will be noted that the optical block BO can be both a headlight (or headlight), a rear light.
On a schématiquement illustré sur les figures 1 et 4 une partie d'un bloc optique BO comprenant un premier exemple de réalisation d'un dispositif 5 d'éclairage D selon l'invention. Ce bloc optique BO comprend un boîtier BT (très partiellement illustré) logeant le dispositif d'éclairage D.  FIGS. 1 and 4 show schematically a portion of an optical block BO comprising a first exemplary embodiment of a lighting device D according to the invention. This optical block BO comprises a LV box (very partially illustrated) housing the lighting device D.
Comme illustré sur les figures 1 à 4, un dispositif d'éclairage D, selon l'invention, comprend au moins une première pièce P1 , une lentille L et une seconde pièce P2.  As illustrated in FIGS. 1 to 4, a lighting device D according to the invention comprises at least a first piece P1, a lens L and a second piece P2.
) La première pièce P1 comporte une première cloison C1 qui délimite partiellement un premier espace E1 logeant une lentille L qui participe à une première fonction d'éclairement.  ) The first piece P1 comprises a first partition C1 which partially defines a first space E1 housing a lens L which participates in a first illumination function.
Par exemple, et comme illustré non limitativement sur la figure 4, cette lentille L est de forme semi-elliptique.  For example, and as illustrated without limitation in FIG. 4, this lens L is of semi-elliptical shape.
5 On notera que cette lentille L est placée derrière une source de lumière (non illustrée) afin de mettre en forme de façon prédéfinie (dépendant de sa première fonction d'éclairement) les photons qu'elle délivre. Cette source de lumière présente une technologie qui dépend de la première fonction d'éclairement à laquelle elle participe. A titre d'exemple non limitatif, It will be noted that this lens L is placed behind a light source (not shown) in order to shape in a predefined manner (depending on its first illumination function) the photons it delivers. This light source has a technology that depends on the first lighting function in which it participates. By way of non-limiting example,
) cette première fonction d'éclairement peut être une fonction de feu de croisement (ou code) et/ou de feu de route. ) this first illumination function can be a function of low beam (or code) and / or high beam.
Dans l'exemple illustré, la première cloison C1 est placée à droite de la lentille L. Par conséquent, la partie gauche du premier espace E1 est ici délimitée par une glace (en verre ou en matière plastique), non représentée et par laquelle peuvent pénétrer les rayons solaires incidents. In the example illustrated, the first partition C1 is placed to the right of the lens L. Therefore, the left part of the first space E1 is here delimited by an ice (glass or plastic), not shown and by which can penetrate the incident solar rays.
On notera, comme illustré non limitativement sur la figure 1 , que le dispositif d'éclairage D peut également et éventuellement comprendre un 5 masque métallisé R supplémentaire placé dans le prolongement de la lentille L au voisinage de son masque ML et destiné à réfléchir les photons.  It will be noted, as illustrated in non-limiting manner in FIG. 1, that the lighting device D can also and optionally comprise an additional metallized mask R placed in the extension of the lens L in the vicinity of its mask ML and intended to reflect the photons. .
La première cloison C1 définit par exemple un masque dont au moins la face qui est orientée vers la lentille L présente une couleur choisie, par exemple noire.  The first partition C1 defines for example a mask whose at least the face which is oriented towards the lens L has a chosen color, for example black.
) La première pièce P1 peut être réalisée par moulage ou injection d'une matière plastique ou synthétique, comme par exemple en PMMA.  ) The first piece P1 can be made by molding or injection of a plastic or synthetic material, such as PMMA.
On notera, comme illustré, que la périphérie de la lentille L est de préférence entourée d'une pièce ML qui définit un masque contre lequel viennent sensiblement s'appuyer un bord de la première pièce P1 (et It will be noted, as illustrated, that the periphery of the lens L is preferably surrounded by a piece ML which defines a mask against which an edge of the first piece P1 (and
5 notamment un bord de sa première cloison C1 ). La couleur de ce masque ML est de préférence identique à celle de la première cloison C1 (ici noire). 5 in particular an edge of its first partition C1). The color of this mask ML is preferably identical to that of the first partition C1 (here black).
En raison de son agencement, la lentille L focalise des rayons solaires incidents sensiblement dans une partie prédéfinie de la première cloison C1 , comme illustré sur la figure 4.  Due to its arrangement, the lens L focuses solar rays incident substantially in a predefined part of the first partition C1, as illustrated in FIG. 4.
) Pour éviter que cette focalisation ne dégrade la matière plastique dans laquelle peut être réalisée la première cloison C1 , l'invention propose que cette dernière (C1 ) comprenne une ouverture OP englobant sa partie prédéfinie. Par ailleurs, pour que cette ouverture OP soit visible, l'invention propose, comme illustré sur les figures 1 à 4, de placer une seconde cloison ) To prevent this focus from degrading the plastic material in which the first partition C1 can be made, the invention proposes that the latter (C1) comprises an opening OP encompassing its predefined part. Moreover, for this opening OP to be visible, the invention proposes, as illustrated in FIGS. 1 to 4, to place a second partition
5 C2 au moins derrière la partie prédéfinie de la première cloison C1 , c'est-à- dire en aval de cette dernière (C1 ) si l'on se réfère au sens de propagation des photons des rayons solaires qui sont défléchis par la lentille L. Cette seconde cloison C2 est avantageusement une partie qui est ajoutée à une seconde pièce P2 faisant partie du dispositif d'éclairage D et assurant déjàC2 at least behind the predefined part of the first partition C1, that is to say downstream of the latter (C1) if one refers to the direction of propagation of the photons of the solar rays which are deflected by the lens L. This second partition C2 is advantageously a part which is added to a second part P2 forming part of the lighting device D and already ensuring
) une fonction spécifique au sein de ce dernier (D). ) a specific function within the latter (D).
Ainsi, les rayons solaires défléchis par la lentille L traversent l'ouverture OP, là où ils sont sensiblement focalisés par cette lentille L, et aboutissent de façon non focalisée dans une zone choisie Z de la seconde cloison C2 qui est placée à une faible distance derrière la première cloison C1 . Ces rayons solaires arrivant défocalisés sur la zone choisie Z (voir figure 4), ils ne risquent plus d'induire localement une dégradation, ni sur la première cloison C1 , ni sur la seconde cloison C2. Thus, the solar rays deflected by the lens L pass through the opening OP, where they are substantially focused by this lens L, and end in a non-focused manner in a selected zone Z of the second partition C2 which is placed a short distance behind the first partition C1. As these solar rays arrive defocused on the chosen zone Z (see FIG. 4), they are no longer liable to locally induce degradation, either on the first partition C1 or on the second partition C2.
5 Afin de rendre encore moins visible l'ouverture OP, au moins la face de la seconde cloison C2, qui est orientée vers la première cloison C1 , peut présenter la couleur choisie de la face de la première cloison C1 qui est orientée vers la lentille L. Par exemple, cette couleur choisie est noire comme indiqué précédemment.  In order to make the opening OP even less visible, at least the face of the second partition C2, which is oriented towards the first partition C1, may have the chosen color of the face of the first partition C1 which is oriented towards the lens L. For example, this selected color is black as indicated above.
) La seconde pièce P2 peut être réalisée par moulage ou injection d'une matière plastique ou synthétique, comme par exemple en PMMA.  ) The second piece P2 can be made by molding or injection of a plastic or synthetic material, such as PMMA.
Dans le premier exemple de réalisation illustré sur les figures 1 , 2 et 4, la seconde pièce P2 délimite au moins partiellement un second espace E2 qui est situé à côté du premier espace E1 et qui loge au moins un élément In the first exemplary embodiment illustrated in FIGS. 1, 2 and 4, the second piece P2 delimits at least partially a second space E2 which is situated next to the first space E1 and which houses at least one element
5 participant à une seconde fonction d'éclairement. La seconde cloison C2 constitue donc une extension de cette seconde pièce P2 qui est placée derrière la première cloison C1 . 5 participating in a second illumination function. The second partition C2 thus constitutes an extension of this second piece P2 which is placed behind the first partition C1.
A titre d'exemple non limitatif, cette seconde fonction d'éclairement peut être une fonction de feu de position (ou veilleuse) ou de feu antibrouillard By way of nonlimiting example, this second illumination function can be a function of position (or pilot) or fog lamp
) ou de feu d'avertissement (ou clignotant) ou encore une fonction de feu de jour (ou DRL (pour « Daytime running Light (or Lamp) » - signalisation lumineuse allumée automatiquement lorsque le véhicule est mis en fonctionnement pendant le jour)). ) or a warning light (or flashing light) or a daytime running light (or DRL) function (illuminated automatically when the vehicle is operated during the day) .
Dans le second exemple de réalisation illustré sur la figure 3, la In the second exemplary embodiment illustrated in FIG.
5 seconde pièce P2 est le masque ML qui entoure la périphérie de la lentille L, et donc la seconde cloison C2 constitue une extension de ce masque ML qui est placée derrière la première cloison C1 . On notera que dans cet exemple, une troisième pièce P3 délimite au moins partiellement un second espace E2 qui est situé à côté du premier espace E1 et qui loge au moins un élémentThe second piece P2 is the mask ML which surrounds the periphery of the lens L, and therefore the second partition C2 constitutes an extension of this mask ML which is placed behind the first partition C1. Note that in this example, a third piece P3 at least partially delimits a second space E2 which is located next to the first space E1 and which houses at least one element
) participant à une seconde fonction d'éclairement (similaire à celle présentée ci-avant). Cette troisième pièce P3 fait éventuellement partie du dispositif d'éclairage D. ) participating in a second illumination function (similar to the one presented above). This third piece P3 is possibly part of the lighting device D.
L'invention offre plusieurs avantages, parmi lesquels : - elle évite d'avoir à intégrer une pièce additionnelle dans le dispositif d'éclairage, et donc n 'induit pas d'augmentation de son encombrement, The invention offers several advantages, among which: it avoids having to integrate an additional piece in the lighting device, and therefore does not induce an increase in its bulk,
- elle évite d'avoir à effectuer un traitement additionnel de la première cloison, - elle ne nuit pas à l 'esthétisme. - it avoids having to perform an additional treatment of the first partition, - it does not detract from the aesthetics.

Claims

REVENDICATIONS
1 . Dispositif d'éclairage (D) comprenant une première pièce (P1 ) comportant une première cloison (C1 ) délimitant partiellement un premier espace (E1 ) logeant une lentille (L), participant à une première fonction d'éclairement et propre à focaliser des rayons solaires sensiblement dans une partie prédéfinie de ladite première cloison (C1 ), caractérisé en ce qu'il comprend une seconde pièce (P2) comportant une seconde cloison (C2) placée au moins derrière ladite partie prédéfinie, et en ce que ladite première cloison (C1 ) comprend une ouverture (OP) englobant ladite partie prédéfinie de sorte que lesdits rayons solaires issus de ladite lentille (L) aboutissent de façon non focalisée dans une zone choisie (Z) de ladite seconde cloison (C2). 1. Lighting device (D) comprising a first part (P1) comprising a first partition (C1) partially delimiting a first space (E1) housing a lens (L), participating in a first illumination function and able to focus the rays substantially in a predefined part of said first partition (C1), characterized in that it comprises a second part (P2) comprising a second partition (C2) placed at least behind said predefined part, and in that said first partition ( C1) comprises an opening (OP) encompassing said predefined part so that said solar rays issuing from said lens (L) terminate unfocused in a selected zone (Z) of said second partition (C2).
2. Dispositif selon la revendication 1 , caractérisé en ce que ladite première cloison (C1 ) comprend une face orientée vers ladite lentille (L) et présentant une couleur choisie, et ladite seconde cloison (C2) comprend une face orientée vers ladite première cloison (C1 ) et présentant ladite couleur choisie.  2. Device according to claim 1, characterized in that said first partition (C1) comprises a face facing said lens (L) and having a chosen color, and said second partition (C2) comprises a face facing said first partition ( C1) and having said chosen color.
3. Dispositif selon la revendication 2, caractérisé en ce que ladite couleur choisie est noire.  3. Device according to claim 2, characterized in that said selected color is black.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que ladite seconde pièce (P2) entoure ladite lentille (L) pour assurer une fonction de masque (ML), et en ce que ladite seconde cloison (C2) constitue une extension de ce masque (ML) placée derrière ladite première cloison (C1 ).  4. Device according to one of claims 1 to 3, characterized in that said second piece (P2) surrounds said lens (L) to provide a mask function (ML), and in that said second partition (C2) constitutes an extension of this mask (ML) placed behind said first partition (C1).
5. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que ladite seconde pièce (P2) délimite au moins partiellement un second espace (E2) situé à côté dudit premier espace (E1 ), derrière ladite première cloison (C1 ) et logeant au moins un élément participant à une seconde fonction d'éclairement.  5. Device according to one of claims 1 to 3, characterized in that said second piece (P2) defines at least partially a second space (E2) located next to said first space (E1), behind said first partition (C1) and housing at least one element participating in a second illumination function.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que ladite lentille (L) est semi-elliptique.  6. Device according to one of claims 1 to 5, characterized in that said lens (L) is semi-elliptical.
7. Bloc optique (BO), caractérisé en ce qu'il comprend au moins un dispositif d'éclairage (D) selon l'une des revendications précédentes. 7. Optical block (BO), characterized in that it comprises at least one lighting device (D) according to one of the preceding claims.
8. Véhicule, caractérisé en ce qu'il comprend au moins un bloc optique (BO) selon la revendication 7. 8. Vehicle, characterized in that it comprises at least one optical block (BO) according to claim 7.
9. Véhicule selon la revendication 8, caractérisé en ce qu'il est de type automobile.  9. Vehicle according to claim 8, characterized in that it is automotive type.
EP14787225.3A 2013-10-04 2014-09-29 Lighting device with an open partition for shifting the area of impact of solar beams passing through a lens Active EP3052854B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1359654A FR3011517B1 (en) 2013-10-04 2013-10-04 OPEN-ROOM LIGHTING DEVICE FOR OFFSETTING THE SOLAR-RAY IMPACT ZONE CROSSING A LENS
PCT/FR2014/052442 WO2015049444A1 (en) 2013-10-04 2014-09-29 Lighting device with an open partition for shifting the area of impact of solar beams passing through a lens

Publications (2)

Publication Number Publication Date
EP3052854A1 true EP3052854A1 (en) 2016-08-10
EP3052854B1 EP3052854B1 (en) 2017-09-13

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EP14787225.3A Active EP3052854B1 (en) 2013-10-04 2014-09-29 Lighting device with an open partition for shifting the area of impact of solar beams passing through a lens

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EP (1) EP3052854B1 (en)
CN (1) CN105637286B (en)
ES (1) ES2643486T3 (en)
FR (1) FR3011517B1 (en)
WO (1) WO2015049444A1 (en)

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FR3045131A1 (en) * 2015-12-15 2017-06-16 Valeo Vision LUMINOUS MODULE COMPRISING A THERMALLY CONDUCTIVE MASK

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DE4120503A1 (en) * 1991-06-21 1992-12-24 Bosch Gmbh Robert Vehicle double headlamp unit - has spacer accommodating mfg. tolerances at coupling point between adjacent reflectors
FR2759765B1 (en) * 1997-02-18 1999-06-04 Valeo Vision ELLIPTICAL PROJECTOR, PARTICULARLY FOR MOTOR VEHICLE
DE102009004295A1 (en) * 2009-01-10 2010-07-15 Hella Kgaa Hueck & Co. Headlight for motor vehicle, has opening radially enclosing projection module in region of projection lens, at distance from module such that module is received in housing with rigid and pivotable structures
RU2536586C2 (en) * 2009-10-22 2014-12-27 Марсель Петер Герард МАЕС Signalling system having improved contrast
JP2011100555A (en) * 2009-11-04 2011-05-19 Koito Mfg Co Ltd Headlight for vehicle
JP5471596B2 (en) * 2010-03-01 2014-04-16 市光工業株式会社 Vehicle lighting
DE102010055332A1 (en) * 2010-12-21 2012-06-21 Volkswagen Ag Lighting device e.g. head light for vehicle e.g. motor car, has auxiliary light source provided in housing such that light emission is provided to interior of housing and emitted light beams are not directly emitted on light cover lens
FR2983279B1 (en) * 2011-11-24 2015-08-21 Valeo Vision OPAQUE AND MOBILE ELEMENT PREVENTING THE FOCUSING OF SOLAR RAYS IN A PROJECTOR
DE202012005795U1 (en) * 2012-06-14 2012-07-09 Automotive Lighting Reutlingen Gmbh Lighting device of a motor vehicle

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Also Published As

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CN105637286A (en) 2016-06-01
FR3011517A1 (en) 2015-04-10
EP3052854B1 (en) 2017-09-13
CN105637286B (en) 2019-03-22
FR3011517B1 (en) 2015-12-04
ES2643486T3 (en) 2017-11-23
WO2015049444A1 (en) 2015-04-09

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