EP0790458A1 - Signal light comprising rows of optical elements and opaque or semiopaque stripes - Google Patents

Signal light comprising rows of optical elements and opaque or semiopaque stripes Download PDF

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Publication number
EP0790458A1
EP0790458A1 EP97400326A EP97400326A EP0790458A1 EP 0790458 A1 EP0790458 A1 EP 0790458A1 EP 97400326 A EP97400326 A EP 97400326A EP 97400326 A EP97400326 A EP 97400326A EP 0790458 A1 EP0790458 A1 EP 0790458A1
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EP
European Patent Office
Prior art keywords
optical elements
rows
opaque
pitch
light according
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Granted
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EP97400326A
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German (de)
French (fr)
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EP0790458B1 (en
Inventor
Jean Girard
Alain Coutin
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Valeo Vision SAS
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Valeo Vision SAS
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/255—Filters

Definitions

  • the present invention relates generally to signaling lights for motor vehicles.
  • a signaling light comprising a light source such as a filament lamp, a flow recuperator, a closing indicator as well as an intermediate screen placed between the flow recuperator and the indicator.
  • the signaling function When it is desired to give such a signal light extinguished a red tint, while the signaling function must be of another color (for example amber for a direction indicator flashing light, or white for a reversing light or a front position light), it is conventional to tint the indicator in pink and to provide on the external face of the intermediate screen a set of opaque or semi-opaque red regions, for example in the form of parallel preferably horizontal bands.
  • This known light also comprises on the internal face of the sight glass optical arrangements for scattering light, such as spherical balls or preferably convex toric surfaces.
  • Figures 1 and 2 of the accompanying drawings which illustrate a known intermediate screen E and the associated external indicator V, to position the opaque bands B so that they have the same pitch as the rows of toroids of the sight glass, preferably by symmetrically overlapping the horizontal planes PT which extend to the transitions between two adjacent rows of tori Ti and Ti + 1.
  • These black bands are in fact the images, formed by the toroids, of the opaque bands B present on the intermediate screen.
  • the present invention aims to overcome this drawback of the state of the art, and to propose a signaling light of the aforementioned type which, while retaining a similar appearance, remaining homogeneous, when it is off, generates a signaling beam n 'having more the aforementioned defect, and be of very good homogeneity.
  • the present invention provides a signaling light for a motor vehicle, comprising a light source such as a filament lamp, a flux recuperator, a closing indicator as well as an intermediate screen placed between the flux recuperator and the indicator, the intermediate screen having on its outer face a set of opaque or semi-opaque bands of a regular pitch, and the light comprising a set of optical elements arranged in parallel rows of a regular pitch, the bands being parallel to said rows of optical elements, characterized in that the ratio of the pitch of the strips to the pitch of the rows of optical elements is different from an integer.
  • a light 40 for closing a light comprises on its inner face a network of optical elements, in this case convex toroids 41, arranged in a plurality of adjacent horizontal rows R1, ..., Rn, in a manner known per se.
  • tori are surfaces which have, respectively in horizontal section and in vertical section, circular profiles of different radii, this in order to ensure a spreading of the different light in horizontal direction and in vertical direction.
  • All the rows of toroids have the same height, with a vertical pitch P3 in this case chosen equal to 3 mm.
  • the intermediate screen 30 has on its external face a plurality of horizontal and parallel opaque or semi-opaque strips 31, produced for example by screen printing.
  • These bands 31 delimit two by two of the transparent bands 32 for the passage of the light emitted from inside the light.
  • These bands have a regular pitch and preferably a constant width.
  • the opaque bands 31 are positioned so that a first band 31c situated at an intermediate height on the sight glass symmetrically overlaps an intermediate transition plane PTc between two rows of adjacent toroids Ri, Ri + 1, and of such that two opaque bands 31h and 31b situated respectively along the upper edge and the lower edge of the screen 30 or of a determined area of it are not located astride two rows of tori as for the band 31c, but are located, in the vertical direction substantially at the center of a corresponding row of toroids, respectively R1 and Rn.
  • the strips 31 are distributed with a regular pitch, on the one hand between the intermediate strip 31c and the upper strip 31h, and on the other hand between the intermediate strip 31c and the lower strip 31b.
  • each row of toroid / strip couple behaves optically in a different way and the result, as shown in FIG. 5, is a photometric reading which is completely homogeneous, and in particular devoid of any dark area or less light likely to make the beam non-compliant with regulations.
  • the effect rendered by the bands when the fire is out is substantially identical to that obtained in the case of FIG. 1, and in particular a good homogeneity of its appearance is preserved.
  • the intermediate screen and the indicator are common to two different light functions, the aforementioned PTc transition plane separating the two illuminating surfaces.
  • the ratio between the pitch P3 of the rows of toroids and the pitch P1 or P2 of the bands is in one case 1.06, and in the other of 1.076.
  • FIG. 6 illustrates a concrete embodiment of a set of signaling lights equipped with an intermediate screen as described above, namely a flashing direction indicator light and a reversing light.
  • It comprises a base 10 defining two cavities 11a, 11b, the bottoms of which constitute flux recovery mirrors 12a, 12b, for example of the parabolic type. In each cavity penetrates from the bottom a lamp, respectively 20a, 20b.
  • the intermediate screen 30 covers the two cavities, the transition plane PTc symmetrically overlapped by the opaque strip 31c constituting the border between the illuminating surfaces of the two lights.
  • An indicator 40 comprising the optical elements 41 extends along and outside the screen 30. This indicator is tinted pink over its entire extent.
  • the upper light is a direction indicator flashing light and, to emit the required amber color, the part of the screen 30 situated above the transition plane PTc is tinted green.
  • the lower light is a reversing light and, to emit the required white color, the part of the screen 30 situated below the transition plane PTc is tinted blue.
  • the screen 30 is preferably produced by molding in two stages.
  • the present invention also applies to any situation where opaque or semi-opaque bands coexist with parallel rows of optical elements provided elsewhere than on the indicator.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Abstract

The indicator light comprises a light source such as a filament lamp with a flux recovery element and a cover plate (40). Beneath the lamp and the cover plate there is an intermediate screen (30). The intermediate screen has on its external face a set of opaque and semi-opaque bands (31) of regular step size. The cover plate includes a set of parallel rows of optical lens elements (41), extending parallel to the opaque and semi-opaque bands on the intermediate plate. These lens elements may be convex, with cylindrical or spherical sections. The ratio of the step size of the opaque bands (P1) and that of the lens elements (P3) is not an integer number, but is preferably in the range 1.02 - 1.15.

Description

La présente invention a trait d'une façon générale aux feux de signalisation pour véhicules automobiles.The present invention relates generally to signaling lights for motor vehicles.

Elle concerne plus particulièrement un feu de signalisation comprenant une source lumineuse telle qu'une lampe à filament, un récupérateur de flux, un voyant de fermeture ainsi qu'un écran intermédiaire placé entre le récupérateur de flux et le voyant.It relates more particularly to a signaling light comprising a light source such as a filament lamp, a flow recuperator, a closing indicator as well as an intermediate screen placed between the flow recuperator and the indicator.

Lorsque l'on souhaite donner à un tel feu de signalisation éteint une teinte rouge, alors que la fonction de signalisation doit être d'une autre couleur (par exemple ambre pour un feu clignotant indicateur de direction, ou blanche pour un feu de recul ou un feu de position avant), il est classique de teinter le voyant en rose et de prévoir sur la face externe de l'écran intermédiaire un ensemble de régions rouges opaques ou semi-opaques, par exemple en forme de bandes parallèles de préférence horizontales.When it is desired to give such a signal light extinguished a red tint, while the signaling function must be of another color (for example amber for a direction indicator flashing light, or white for a reversing light or a front position light), it is conventional to tint the indicator in pink and to provide on the external face of the intermediate screen a set of opaque or semi-opaque red regions, for example in the form of parallel preferably horizontal bands.

Ce feu connu comporte également sur la face interne du voyant des aménagements optiques de diffusion de la lumière, telles que des billes sphériques ou des surfaces toriques de préférence convexes.This known light also comprises on the internal face of the sight glass optical arrangements for scattering light, such as spherical balls or preferably convex toric surfaces.

Afin notamment de donner au feu lorsqu'il est éteint un aspect aussi homogène que possible, il est classique, comme le montrent les figures 1 et 2 des dessins annexés qui illustrent un écran intermédiaire connu E et le voyant extérieur associé V, de positionner les bandes opaques B de telle sorte qu'elles présentent le même pas que les rangées de tores du voyant, de préférence en chevauchant symétriquement les plans horizontaux PT qui s'étendent aux transitions entre deux rangées adjacentes de tores Ti et Ti+1.In particular in order to give the fire when it is extinguished an aspect as homogeneous as possible, it is conventional, as shown in Figures 1 and 2 of the accompanying drawings which illustrate a known intermediate screen E and the associated external indicator V, to position the opaque bands B so that they have the same pitch as the rows of toroids of the sight glass, preferably by symmetrically overlapping the horizontal planes PT which extend to the transitions between two adjacent rows of tori Ti and Ti + 1.

Cette solution est cependant désavantageuse en ce qu'elle provoque dans le relevé photométrique du feu des zones sombres tout à fait indésirables car elles empêchent au feu d'être conforme aux règlements en certains points de mesure de la grille photométrique.This solution is however disadvantageous in that it causes completely undesirable dark areas in the photometric reading of the fire because they prevent the fire from complying with the regulations at certain measurement points of the photometric grid.

Plus précisément, si l'on se réfère à la figure 3 des dessins, on constate qu'il existe dans l'allure du faisceau obtenu, définie par un ensemble de courbes isocandéla, deux bandes horizontales B1 et B2 dans lesquelles la lumière est absente, ou tout au moins largement insuffisante.More specifically, if we refer to Figure 3 of the drawings, we see that there are in the shape of the beam obtained, defined by a set of isocandela curves, two horizontal bands B1 and B2 in which light is absent , or at least largely insufficient.

Ces bandes noires sont en fait les images, formés par les tores, des bandes opaques B présentes sur l'écran intermédiaire.These black bands are in fact the images, formed by the toroids, of the opaque bands B present on the intermediate screen.

Un tel phénomène se rencontrerait également si les billes ou tores du voyant étaient remplacés par des stries cylindriques horizontales.Such a phenomenon would also be encountered if the sight glass balls or toroids were replaced by horizontal cylindrical streaks.

Ce problème peut également se rencontrer lorsque des bandes opaques chevauchent des plans de transition horizontaux entre des aménagements optiques prévus non pas sur la face interne du voyant, mais ailleurs et notamment sur la face interne de l'écran intermédiaire.This problem can also be encountered when opaque strips overlap horizontal transition planes between optical arrangements provided not on the internal face of the indicator, but elsewhere and in particular on the internal face of the intermediate screen.

La présente invention vise à pallier cet inconvénient de l'état de la technique, et à proposer un feu de signalisation du type précité qui, tout en conservant un aspect similaire, restant homogène, lorsqu'il est éteint, engendre un faisceau de signalisation n'ayant plus le défaut précité, et soit d'une très bonne homogénéité.The present invention aims to overcome this drawback of the state of the art, and to propose a signaling light of the aforementioned type which, while retaining a similar appearance, remaining homogeneous, when it is off, generates a signaling beam n 'having more the aforementioned defect, and be of very good homogeneity.

Ainsi la présente invention propose un feu de signalisation pour véhicule automobile, comprenant une source lumineuse telle qu'une lampe à filament, un récupérateur de flux, un voyant de fermeture ainsi qu'un écran intermédiaire placé entre le récupérateur de flux et le voyant, l'écran intermédiaire possédant sur sa face externe un ensemble de bandes opaques ou semi-opaques d'un pas régulier, et le feu comportant un ensemble d'éléments optiques disposés selon des rangées parallèles d'un pas régulier, les bandes étant parallèles auxdites rangées d'éléments optiques, caractérisé en ce que le rapport entre le pas des bandes et le pas des rangées d'éléments optiques est différent d'un nombre entier.Thus, the present invention provides a signaling light for a motor vehicle, comprising a light source such as a filament lamp, a flux recuperator, a closing indicator as well as an intermediate screen placed between the flux recuperator and the indicator, the intermediate screen having on its outer face a set of opaque or semi-opaque bands of a regular pitch, and the light comprising a set of optical elements arranged in parallel rows of a regular pitch, the bands being parallel to said rows of optical elements, characterized in that the ratio of the pitch of the strips to the pitch of the rows of optical elements is different from an integer.

Des aspects préférés, mais non limitatifs, du dispositif selon l'invention sont les suivants :

  • les éléments optiques sont prévus sur une face interne du voyant.
  • le rapport entre le pas des bandes et le pas des rangées d'éléments optiques est légèrement supérieur à l'unité.
  • ledit rapport est de l'ordre de 1,02 à 1,15.
  • une première bande disposée dans une partie centrale du feu est centrée sur un plan de transition entre deux rangées adjacentes d'éléments optiques, et des deuxième et troisième bandes disposées de part et d'autre de ladite première bande et éloignées de celle-ci sont centrées sur une rangée respective d'éléments optiques.
  • les éléments optiques sont convexes et choisis parmi les stries cylindriques, les billes sphériques et les tores.
  • les rangées d'éléments optiques et les bandes s'étendent soit horizontalement, soit verticalement.
  • le voyant présente une teinte rose, les bandes opaques ou semi-opaques sont de couleur rouge, et la teinte de l'écran intermédiaire est complémentaire de celle du voyant.
  • dans le cas où le feu comprend deux sources lumineuses reçues dans deux cavités fermées par deux régions d'un écran intermédiaire commun, le rapport entre le pas des bandes et le pas des rangées d'éléments optiques est différent d'une région à l'autre.
  • ladite partie centrale du feu sépare lesdites régions.
  • l'écran intermédiaire présente deux teintes différentes dans ses deux régions, et ladite première bande masque la transition entre les teintes.
Preferred, but not limiting, aspects of the device according to the invention are as follows:
  • the optical elements are provided on an internal face of the sight glass.
  • the ratio between the pitch of the strips and the pitch of the rows of optical elements is slightly greater than unity.
  • said ratio is of the order of 1.02 to 1.15.
  • a first strip arranged in a central part of the light is centered on a transition plane between two adjacent rows of optical elements, and second and third strips arranged on either side of said first strip and distant from it are centered on a respective row of optical elements.
  • the optical elements are convex and chosen from cylindrical ridges, spherical balls and tori.
  • the rows of optical elements and the strips extend either horizontally or vertically.
  • the indicator has a pink tint, the opaque or semi-opaque bands are red, and the tint of the intermediate screen is complementary to that of the indicator.
  • in the case where the light comprises two light sources received in two cavities closed by two regions of a common intermediate screen, the ratio between the pitch of the strips and the pitch of the rows of optical elements is different from one region to the other.
  • said central part of the light separates said regions.
  • the intermediate screen has two different colors in its two regions, and said first strip masks the transition between colors.

D'autres aspects, buts et avantages de la présente invention apparaîtront mieux à la lecture de la description détaillée suivante d'une forme de réalisation préférée de celle-ci, donnée à titre d'exemple et faite en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue de face d'un voyant et d'un écran intermédiaire, vu par transparence, d'un feu de signalisation de l'art antérieur,
  • la figure 2 est une vue en coupe verticale du voyant et de l'écran intermédiaire de la figure 1,
  • la figure 3 illustre par un ensemble de courbes isocandéla l'allure photométrique du faisceau engendré avec le voyant et l'écran intermédiaire des figures 1 et 2,
  • la figure 4 est une vue de face d'un voyant et d'un écran intermédiaire, vu par transparence selon l'invention,
  • la figure 5 illustre par un ensemble de courbes isocandéla l'allure photométrique du faisceau engendré avec le voyant et l'écran intermédiaire de la figure 4, et
  • la figure 6 est une vue en coupe verticale d'un feu de signalisation incorporant un voyant et un écran intermédiaire selon l'invention.
Other aspects, aims and advantages of the present invention will appear better on reading the description following detailed description of a preferred embodiment thereof, given by way of example and made with reference to the appended drawings, in which:
  • FIG. 1 is a front view of an indicator light and an intermediate screen, seen by transparency, of a signaling light of the prior art,
  • FIG. 2 is a view in vertical section of the indicator and of the intermediate screen of FIG. 1,
  • FIG. 3 illustrates by a set of isocandela curves the photometric appearance of the beam generated with the indicator and the intermediate screen of FIGS. 1 and 2,
  • FIG. 4 is a front view of an indicator and an intermediate screen, seen by transparency according to the invention,
  • FIG. 5 illustrates by a set of isocandela curves the photometric appearance of the beam generated with the indicator and the intermediate screen of FIG. 4, and
  • Figure 6 is a vertical sectional view of a signaling light incorporating an indicator and an intermediate screen according to the invention.

En référence tout d'abord à la figure 4, un voyant de fermeture 40 d'un feu selon l'invention comporte sur sa face intérieure un réseau d'éléments optiques, en l'espèce des tores convexes 41, disposés selon une pluralité de rangées horizontales adjacentes R1, ..., Rn, de façon connue en soi.Referring firstly to FIG. 4, a light 40 for closing a light according to the invention comprises on its inner face a network of optical elements, in this case convex toroids 41, arranged in a plurality of adjacent horizontal rows R1, ..., Rn, in a manner known per se.

On rappellera ici que des tores sont des surfaces qui présentent, respectivement en section horizontale et en section verticale, des profils circulaires de rayons différents, ceci afin d'assurer un étalement de la lumière différent en direction horizontale et en direction verticale.It will be recalled here that tori are surfaces which have, respectively in horizontal section and in vertical section, circular profiles of different radii, this in order to ensure a spreading of the different light in horizontal direction and in vertical direction.

Toutes les rangées de tores présentent la même hauteur, avec un pas vertical P3 en l'espèce choisi égal à 3 mm.All the rows of toroids have the same height, with a vertical pitch P3 in this case chosen equal to 3 mm.

L'écran intermédiaire 30 présente sur sa face externe une pluralité de bandes opaques ou semi-opaques horizontales et parallèles 31, réalisées par exemple par sérigraphie.The intermediate screen 30 has on its external face a plurality of horizontal and parallel opaque or semi-opaque strips 31, produced for example by screen printing.

Ces bandes 31 délimitent deux à deux des bandes transparentes 32 de passage de la lumière émise à partir de l'intérieur du feu.These bands 31 delimit two by two of the transparent bands 32 for the passage of the light emitted from inside the light.

Ces bandes présentent un pas régulier et de préférence une largeur constante.These bands have a regular pitch and preferably a constant width.

Dans le présent exemple, on positionne les bandes opaques 31 de telle sorte qu'une première bande 31c située à une hauteur intermédiaire sur le voyant chevauche symétriquement un plan de transition intermédiaire PTc entre deux rangées de tores adjacentes Ri, Ri+1, et de telle sorte que deux bandes opaques 31h et 31b situées respectivement le long du bord supérieur et du bord inférieur de l'écran 30 ou d'une zone déterminée de celui-ci soient non pas situées à cheval sur deux rangées de tores comme pour la bande 31c, mais soient situées, en direction verticale sensiblement au centre d'une rangée de tores correspondante, respectivement R1 et Rn.In the present example, the opaque bands 31 are positioned so that a first band 31c situated at an intermediate height on the sight glass symmetrically overlaps an intermediate transition plane PTc between two rows of adjacent toroids Ri, Ri + 1, and of such that two opaque bands 31h and 31b situated respectively along the upper edge and the lower edge of the screen 30 or of a determined area of it are not located astride two rows of tori as for the band 31c, but are located, in the vertical direction substantially at the center of a corresponding row of toroids, respectively R1 and Rn.

Les bandes 31 sont réparties avec un pas régulier, d'une part entre la bande intermédiaire 31c et la bande supérieure 31h, et d'autre part entre la bande intermédiaire 31c et la bande inférieure 31b.The strips 31 are distributed with a regular pitch, on the one hand between the intermediate strip 31c and the upper strip 31h, and on the other hand between the intermediate strip 31c and the lower strip 31b.

Du fait que les deux bandes extrêmes occupent à chaque fois des positions relatives différentes par rapport aux rangées de tores adjacentes, il en résulte un décalage progressif des bandes par rapport aux rangées de tores, à partir de la position chevauchante de la bande 31c jusqu'aux positions des bandes extrêmes 31h, 31b.Because the two end bands each occupy different relative positions with respect to the adjacent rows of toroids, this results in a progressive shift of the bands with respect to the rows of toroids, from the overlapping position of the band 31c up to at the positions of the end bands 31h, 31b.

De par ce décalage progressif, chaque couple rangée de tores/bande se comporte optiquement de façon différente et il en résulte, comme le montre la figure 5, un relevé photométrique qui est tout à fait homogène, et en particulier dépourvu de toute zone sombre ou moins éclairée susceptible de rendre le faisceau non conforme aux règlements. Dans le même temps, l'effet rendu par les bandes lorsque le feu est éteint est sensiblement identique à celui obtenu dans le cas de la figure 1, et en particulier une bonne homogénéité de son aspect est conservée.Because of this progressive shift, each row of toroid / strip couple behaves optically in a different way and the result, as shown in FIG. 5, is a photometric reading which is completely homogeneous, and in particular devoid of any dark area or less light likely to make the beam non-compliant with regulations. At the same time, the effect rendered by the bands when the fire is out is substantially identical to that obtained in the case of FIG. 1, and in particular a good homogeneity of its appearance is preserved.

Dans le cas d'espèce, l'écran intermédiaire et le voyant sont communs à deux fonctions lumineuses différentes, le plan de transition PTc précité séparant les deux plages éclairantes.In this case, the intermediate screen and the indicator are common to two different light functions, the aforementioned PTc transition plane separating the two illuminating surfaces.

Du fait que le nombre de rangées de tores dans les deux plages éclairantes est différent, il en résulte que le pas entre les bandes est également différent d'une plage à l'autre.Because the number of rows of toroids in the two lighting areas is different, it follows that the pitch between the strips is also different from one area to another.

Avec l'exemple concret tel qu'illustré sur la figure 4, on aboutit pour les bandes situées au-dessus de la bande intermédiaire 31c, à un pas P1 de 3,18 mm et, pour les bandes situées au-dessous de la bande intermédiaire 31c, à un pas P2 de 3,23 mm.With the concrete example as illustrated in FIG. 4, one arrives for the bands situated above the intermediate band 31c, at a pitch P1 of 3.18 mm and, for the bands situated below the band intermediate 31c, at a pitch P2 of 3.23 mm.

Ainsi le rapport entre le pas P3 des rangées de tores et le pas P1 ou P2 des bandes est dans un cas de 1,06, et dans l'autre de 1,076.Thus the ratio between the pitch P3 of the rows of toroids and the pitch P1 or P2 of the bands is in one case 1.06, and in the other of 1.076.

Selon la configuration, la taille et le nombre des différents éléments, on aura recours dans la pratique à un rapport entre pas compris le plus souvent entre 1,02 et 1,15.Depending on the configuration, the size and the number of different elements, in practice we will use a ratio between not usually between 1.02 and 1.15.

Alternativement, on peut bien entendu augmenter le nombre de bandes opaques 31 entre une bande chevauchant deux rangées de tores et une bande centrée sur une rangée de tores, pour obtenir dans ce cas un rapport entre pas inférieur à 1.Alternatively, it is of course possible to increase the number of opaque strips 31 between a strip overlapping two rows of toroids and a strip centered on a row of toroids, in this case to obtain a ratio between steps of less than 1.

On a illustré sur la figure 6 une forme de réalisation concrète d'un ensemble de feux de signalisation équipé d'un écran intermédiaire tel que décrit ci-dessus, à savoir un feu clignotant indicateur de direction et un feu de recul.FIG. 6 illustrates a concrete embodiment of a set of signaling lights equipped with an intermediate screen as described above, namely a flashing direction indicator light and a reversing light.

Il comprend un socle 10 définissant deux cavités 11a, 11b dont les fonds constituent des miroirs récupérateurs de flux 12a, 12b, par exemple du genre parabolique. Dans chaque cavité pénètre à partir du fond une lampe, respectivement 20a, 20b.It comprises a base 10 defining two cavities 11a, 11b, the bottoms of which constitute flux recovery mirrors 12a, 12b, for example of the parabolic type. In each cavity penetrates from the bottom a lamp, respectively 20a, 20b.

L'écran intermédiaire 30 recouvre les deux cavités, le plan de transition PTc chevauché symétriquement par la bande opaque 31c constituant la frontière entre les plages éclairantes des deux feux. Un voyant 40 comportant les éléments optiques 41 s'étend le long et à l'extérieur de l'écran 30. Ce voyant est teinté en rose sur toute son étendue.The intermediate screen 30 covers the two cavities, the transition plane PTc symmetrically overlapped by the opaque strip 31c constituting the border between the illuminating surfaces of the two lights. An indicator 40 comprising the optical elements 41 extends along and outside the screen 30. This indicator is tinted pink over its entire extent.

Le feu supérieur est un feu clignotant indicateur de direction et, pour émettre la couleur ambre requise, la partie de l'écran 30 située au dessus du plan de transition PTc est teintée en vert.The upper light is a direction indicator flashing light and, to emit the required amber color, the part of the screen 30 situated above the transition plane PTc is tinted green.

Le feu inférieur est un feu de recul et, pour émettre la couleur blanche requise, la partie de l'écran 30 située au-dessous du plan de transition PTc est teintée en bleu. A cet effet, l'écran 30 est de préférence réalisé par moulage en deux étapes.The lower light is a reversing light and, to emit the required white color, the part of the screen 30 situated below the transition plane PTc is tinted blue. To this end, the screen 30 is preferably produced by molding in two stages.

Lorsque cet ensemble de deux feux est éteint, la combinaison de la teinte rose du voyant 40 et de la couleur rouge des bandes opaques 31 lui donne un aspect rouge homogène, qui se marie bien avec d'autres feux adjacents de teinte rouge (feu de position, feu stop, feu de brouillard arrière,...).When this set of two lights is off, the combination of the pink shade of the indicator light 40 and the red color of the opaque bands 31 gives it a homogeneous red appearance, which goes well with other adjacent lights of red shade ( position, brake light, rear fog light, ...).

Bien entendu, la présente invention n'est nullement limitée à la forme de réalisation décrite et représentée, mais l'homme du métier saura y apporter toute variante ou modification conforme à son esprit.Of course, the present invention is in no way limited to the embodiment described and shown, but a person skilled in the art will know how to make any variant or modification in accordance with his spirit.

En particulier, la présente invention s'applique également à toute situation où des bandes opaques où semi-opaques coexistent avec des rangées parallèles d'éléments optiques prévues ailleurs que sur le voyant.In particular, the present invention also applies to any situation where opaque or semi-opaque bands coexist with parallel rows of optical elements provided elsewhere than on the indicator.

Claims (12)

Feu de signalisation pour véhicule automobile, comprenant une source lumineuse telle qu'une lampe à filament (20a; 20b), un récupérateur de flux (12a; 12b), un voyant de fermeture (40) ainsi qu'un écran intermédiaire (30) placé entre le récupérateur de flux et le voyant, l'écran intermédiaire possédant sur sa face externe un ensemble de bandes opaques ou semi-opaques (31) d'un pas régulier, et le feu comportant un ensemble d'éléments optiques (41) disposés selon des rangées parallèles d'un pas régulier, les bandes (31) étant parallèles auxdites rangées d'éléments optiques, caractérisé en ce que le rapport entre le pas (P1; P2) des bandes et le pas (P3) des rangées d'éléments optiques est différent d'un nombre entier.Signaling light for a motor vehicle, comprising a light source such as a filament lamp (20a; 20b), a flux recuperator (12a; 12b), a closing indicator (40) and an intermediate screen (30) placed between the flow recuperator and the indicator, the intermediate screen having on its external face a set of opaque or semi-opaque strips (31) of regular pitch, and the light comprising a set of optical elements (41) arranged in parallel rows of regular pitch, the bands (31) being parallel to said rows of optical elements, characterized in that the ratio between the pitch (P1; P2) of the bands and the pitch (P3) of the rows d optical elements is different from an integer. Feu de signalisation selon la revendication 1, caractérisé en ce que les éléments optiques (41) sont prévus sur une face interne du voyant (40).Signaling light according to claim 1, characterized in that the optical elements (41) are provided on an internal face of the sight glass (40). Feu de signalisation selon la revendication 1 ou 2, caractérisé en ce que le rapport entre le pas (P1; P2) des bandes (31) et le pas (P3) des rangées d'éléments optiques (41) est légèrement supérieur à l'unité.Signaling light according to claim 1 or 2, characterized in that the ratio between the pitch (P1; P2) of the strips (31) and the pitch (P3) of the rows of optical elements (41) is slightly greater than the unit. Feu de signalisation selon la revendication 3, caractérisé en ce que ledit rapport est de l'ordre de 1,02 à 1,15.Signaling light according to claim 3, characterized in that said ratio is of the order of 1.02 to 1.15. Feu de signalisation selon l'une des revendications 1 à 4, caractérisé en ce qu'une première bande (31c) disposée dans une partie centrale du feu est centrée sur un plan de transition (PTc) entre deux rangées adjacentes (Ri, Ri+1) d'éléments optiques (41), et en ce que des deuxième et troisième bandes (31h, 31b) disposées de part et d'autre de ladite première bande et éloignées de celle-ci sont centrées sur une rangée respective (R1, Rn) d'éléments optiques.Signaling light according to one of claims 1 to 4, characterized in that a first strip (31c) disposed in a central part of the light is centered on a transition plane (PTc) between two adjacent rows (Ri, Ri + 1) of optical elements (41), and in that second and third bands (31h, 31b) disposed of on either side of said first strip and spaced therefrom are centered on a respective row (R1, Rn) of optical elements. Feu de signalisation selon l'une des revendications 1 à 5, caractérisé en ce que les éléments optiques (41) sont convexes et choisis parmi les stries cylindriques, les billes sphériques et les tores.Signaling light according to one of claims 1 to 5, characterized in that the optical elements (41) are convex and chosen from cylindrical ridges, spherical balls and toroids. F e u de signalisation selon l'une des revendications 1 à 6, caractérisé en ce que les rangées d'éléments optiques (41) et les bandes (31) s'étendent horizontalement.Signaling light according to one of Claims 1 to 6, characterized in that the rows of optical elements (41) and the strips (31) extend horizontally. Feu de signalisation selon l'une des revendications 1 à 6, caractérisé en ce que les rangées d'éléments optiques (41) et les bandes (31) s'étendent verticalement.Signaling light according to one of Claims 1 to 6, characterized in that the rows of optical elements (41) and the strips (31) extend vertically. Feu de signalisation selon l'une des revendications 1 à 8, caractérisé en ce que le voyant (40) présente une teinte rose, en ce que les bandes opaques ou semi-opaques (31) sont de couleur rouge, et en ce que la teinte de l'écran intermédiaire (30) est complémentaire de celle du voyant.Signaling light according to one of Claims 1 to 8, characterized in that the indicator (40) has a pink tint, in that the opaque or semi-opaque bands (31) are red, and in that the shade of the intermediate screen (30) is complementary to that of the indicator. F e u de signalisation selon l'une des revendications précédentes, comprenant deux sources lumineuses (20a, 20b) reçues dans deux cavités (11a, 11b) fermées par deux régions d'un écran intermédiaire commun (30), caractérisé en ce que le rapport entre le pas (P1, P2) des bandes et le pas (P3) des rangées d'éléments optiques est différent d'une région à l'autre.F signaling according to one of the preceding claims, comprising two light sources (20a, 20b) received in two cavities (11a, 11b) closed by two regions of a common intermediate screen (30), characterized in that the ratio between the pitch (P1, P2) of the strips and the pitch (P3) of the rows of optical elements is different from one region to another. Feu de signalisation selon les revendications 5 et 10 prises en combinaison, caractérisé en ce que ladite partie centrale du feu sépare lesdites régions.Signaling light according to claims 5 and 10 taken in combination, characterized in that said central part of the light separates said regions. Feu de signalisation selon la revendication 10, caractérisé en ce que l'écran intermédiaire (30) présente deux teintes différentes dans ses deux régions, et en ce que ladite première bande (31c) masque la transition entre les teintes.Signaling light according to claim 10, characterized in that the intermediate screen (30) has two different colors in its two regions, and in that said first strip (31c) masks the transition between the colors.
EP97400326A 1996-02-16 1997-02-13 Signal light comprising rows of optical elements and opaque or semiopaque stripes Expired - Lifetime EP0790458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9601940 1996-02-16
FR9601940A FR2745062B1 (en) 1996-02-16 1996-02-16 SIGNAL LIGHT COMPRISING ROWS OF OPTICAL ELEMENTS AND OPAQUE OR SEMI-OPAQUE STRIPS

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EP0790458A1 true EP0790458A1 (en) 1997-08-20
EP0790458B1 EP0790458B1 (en) 2002-11-13

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EP97400326A Expired - Lifetime EP0790458B1 (en) 1996-02-16 1997-02-13 Signal light comprising rows of optical elements and opaque or semiopaque stripes

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EP (1) EP0790458B1 (en)
DE (1) DE69716978T2 (en)
ES (1) ES2186849T3 (en)
FR (1) FR2745062B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842818B1 (en) * 1996-11-15 2003-09-17 Valeo Vision Signal light with two different signalling functions especially for vehicles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427549A1 (en) * 1978-05-30 1979-12-28 Lucas Industries Ltd LAMP ESPECIALLY WITH REFLECTOR
EP0180145A1 (en) * 1984-10-26 1986-05-07 Neiman Lighting and signalling device, especially for motor vehicles
EP0306399A1 (en) * 1987-09-03 1989-03-08 Valeo Vision Masked light for motor vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427549A1 (en) * 1978-05-30 1979-12-28 Lucas Industries Ltd LAMP ESPECIALLY WITH REFLECTOR
EP0180145A1 (en) * 1984-10-26 1986-05-07 Neiman Lighting and signalling device, especially for motor vehicles
EP0306399A1 (en) * 1987-09-03 1989-03-08 Valeo Vision Masked light for motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0842818B1 (en) * 1996-11-15 2003-09-17 Valeo Vision Signal light with two different signalling functions especially for vehicles

Also Published As

Publication number Publication date
EP0790458B1 (en) 2002-11-13
ES2186849T3 (en) 2003-05-16
DE69716978T2 (en) 2003-08-28
FR2745062A1 (en) 1997-08-22
FR2745062B1 (en) 1998-05-07
DE69716978D1 (en) 2002-12-19

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