EP1367318A1 - Feu de signalisation comportant une pièce optique réalisant une fonction de signalisation de manière autonome - Google Patents
Feu de signalisation comportant une pièce optique réalisant une fonction de signalisation de manière autonome Download PDFInfo
- Publication number
- EP1367318A1 EP1367318A1 EP03291049A EP03291049A EP1367318A1 EP 1367318 A1 EP1367318 A1 EP 1367318A1 EP 03291049 A EP03291049 A EP 03291049A EP 03291049 A EP03291049 A EP 03291049A EP 1367318 A1 EP1367318 A1 EP 1367318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- signaling
- optical axis
- source
- reflection
- 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.)
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- 230000009131 signaling function Effects 0.000 title claims description 12
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Images
Classifications
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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
- F21S43/235—Light guides
- F21S43/247—Light guides with a single light source being coupled into the light guide
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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
- F21S43/10—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]
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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
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
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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
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
Definitions
- the invention proposes a signaling light in particular for a motor vehicle.
- the invention more particularly provides a signaling, in particular for a motor vehicle, of the type having a central optical axis oriented from rear to front, according to the direction of propagation of the light beam emitted by the fire, a generally point light source arranged on this optical axis, and a solid optical part, at least in part of revolution around the optical axis, which is carried out in a transparent material with a higher refractive index than air, of the type in which the optical part has a surface of entry, and a generally transverse exit surface which is designed to transmit light rays forward, in a direction generally parallel to the optical axis, e so as to perform a specific signaling function.
- This type of traffic light generally requires a substantially parabolic reflector, arranged axially at the back of the optical part to collect the light rays emitted by the light source and to focus them on the surface of the optical part.
- the structure of the parabolic reflector limits the front opening of the traffic light, i.e. the area of the outlet surface.
- the small axial thickness of the light therefore implies a small exit surface, so that the luminance of the fire by area unit is important.
- signal lights of known types are not suitable for the use of a small light source dimension, such as a light emitting diode, which emits its luminous flux in a solid angle of determined value, less than one hundred and eighty degrees.
- the sources luminaires conventionally used in signaling lights are filament lamps, which emit light overall in all directions from the filament.
- the invention aims to remedy the aforementioned drawbacks, by offering a traffic light which may have a low axial thickness, while having sufficient outlet surface to perform the signaling function, and which is adapted to the use of a light source such as a diode emitting.
- the invention also aims to minimize the number of parts necessary to perform the signaling function, and to minimize manufacturing costs.
- the invention proposes a signaling light for the type described above, characterized in that the optical part has a generally transverse reflection surface which is arranged axially opposite the outlet surface, and that the entry surface is arranged axially between the reflection surface and the output surface, so that the light rays which enter the optical part through the input surface are reflected by the reflection surface towards the exit surface.
- Figures 1 and 2 show a signaling 10 which is carried out in accordance with a first mode for carrying out the invention.
- This signal light 10 comprises an optical part full 12 which serves as both a luminous flux recuperator and a light flux diffuser for a light source overall point, here consisting of a light emitting diode 14.
- Diode 14 has been shown mounted on a circuit board. support 16, at the rear, which allows in particular its connection to a power supply network and a control unit (not shown).
- the diodes 14 are available in several colors, it is to say that it is possible to choose the coloring of the luminous flux emitted by diode 14.
- the color of the diode 14 according to the signaling function to be performed by example red for a fog light function, or white for a reversing light function.
- the optical part 12 and the diode 14 are arranged coaxially along a central optical axis A-A which extends generally horizontally from left to right, in considering figure 2.
- the diode 14 has at the rear a connection box 18 substantially cylindrical and at the front a globe of diffusion luminous 20 substantially hemispherical centered on the axis optics A-A, convex towards the front.
- connection box 18 includes means for fixing and electrical connection (not shown) for the mounting of the diode 14 on the plate 16.
- diode 14 is a light source point S, which emits light rays radially, generally forward, from the center S of the hemisphere forming the globe 20.
- the center S generally corresponds to the heart of the source luminous, i.e. the point of the source from which seems to come most of the luminous flux.
- a diode 14 is chosen whose opening is close to 180 degrees, i.e. it emits rays bright at a solid angle of 180 degrees, centered around the optical axis A-A.
- the optical part 12 is a form of revolution around the optical axis A-A, and it is made of a material transparent with a higher refractive index than the air, which here constitutes the ambient environment surrounding the room 12.
- the optical part 12 is produced in a single piece by molding in transparent plastic such as, for example, polymethyl methacrylate (PMMA).
- transparent plastic such as, for example, polymethyl methacrylate (PMMA).
- the optical part 12 has an entry surface 22, a reflection surface 24, and an exit surface 26.
- the entry surface 22 here has a hemispherical shape concave, the center of which generally coincides with the center S of the light source 14.
- the reflection surface 24 generally extends in a plane transverse to the optical axis A-A, passing through the center S of the light source 14.
- the reflecting surface 24 has the shape of a crown centered on the optical axis A-A, which includes an annular part interior 28, optically neutral, and an annular part exterior 30.
- the two annular parts 28, 30 are contained overall in the same transverse plane.
- the inner annular part 28 is planar and it extends transversely outwards, from the peripheral edge 32 from the entry surface 22 to the inner peripheral edge 34 of the outer annular part 30.
- the outer annular part 30 is formed by a series of reflective rings 36 coaxial along the optical axis A-A.
- the outer annular part 30 is generally designed on the same principle as a stepped type lens.
- each reflecting crown 36 is a line segment which is tilted forward and towards the axis optics A-A.
- the reflective crowns 36 are staggered radially outwards, two reflecting rings 36 successive being separated by an optically neutral crown 38.
- each neutral crown 38 is here a line segment that is tilted forward and outward.
- the generating reflective crowns 36 are substantially parallel, and the length of these generators decreases gradually as one moves away from the axis A-A.
- the acute angle which defines each generator of a neutral ring 38 with the optical axis A-A, increases gradually as one moves away from the axis A-A.
- the reflection surface 24 is coated, on its rear face, a layer of reflective material, for example based of aluminum, so that the light rays, which are transmitted inside the optical part 12, and which reach the reflecting crowns 36, are reflected towards the surface of exit 26.
- the reflective material can only be deposited on reflective crowns 36, since only the crowns reflective 36 are intended to reflect light rays which participate in the signaling function.
- the exit surface 26 of the optical part 12 extends generally in a transverse plane, axially opposite the reflection surface 24.
- the outlet surface 26 has an annular part 40 whose generator is a straight line which describes an angle inclination ⁇ , relative to the optical axis A-A, so that generally form a truncated cone, the apex of which is forward.
- the generating the annular part 40 can be an arc of a circle, so as to form a convex spherical cap.
- the outlet surface 26 comprises a central part 42 in convex spherical cap shape which is centered on the axis optics A-A.
- the center C of the central part 42 is offset axially backwards from the center S of the entry surface 22.
- the central part 42 defines, with the center S of the source light 14, a solid angle ⁇ of determined value.
- the value of the solid angle ⁇ is determined as a function of the angle of incidence of the light rays which are emitted by the source 14 and which directly reach the outlet surface 26, after crossing the entry surface 22.
- the value of the solid angle ⁇ must be such that the part central 42 collects all the light rays whose angle tilt, relative to the tilt angle of the generator of the annular part 40, is insufficient to allow their total backward reflection.
- the value of the solid angle ⁇ is, for example, equal to about a hundred degrees.
- the diameter outside of the outer annular part 30 of the surface of reflection 24 is equal to the outside diameter of the annular part 40 of the outlet surface 26.
- the optical part 12 therefore comprises a peripheral cylindrical surface 44 which connects the surface of reflection 24 at the exit surface 26.
- entry surface 22 is interposed axially between the reflection surface 24 and the exit surface 26.
- the light source 14 is here arranged axially between the reflection surface 24 and the output surface 26.
- central part 42 of the surface of outlet 26 works like a converging lens whose focus is the center S of the light source 14.
- the light rays R2 which are emitted by the source 14, and which reach the annular part 40, directly after crossing the entry surface 22, are reflected on this annular part 40, according to the principle of total reflection, towards the reflecting crowns 36 of the annular part outside 30 of the reflection surface 24.
- R2 rays are reflected on the crowns reflective 36 and they are returned to the annular part 40 of the outlet surface 26.
- the angle of inclination ⁇ of the generator of the part annular 40 is chosen so that, after reflecting on reflective rings 36, light rays R2 pass through the annular part 40 while refracting towards the front, in a direction substantially parallel to the optical axis A-A.
- the crowns 38 of the outer annular part 30 of the reflection surface 24 are optically neutral, i.e. that they have no optical function, because they cannot be reached by the R2 light rays reflected on the part annular 40 of the outlet surface 26.
- the diameter of the peripheral edge 34 of the annular part exterior 30 is determined globally by the point of impact, on the reflection surface 24, of the nearest light ray R2p of the solid angle ⁇ . Indeed, the more a light ray R2 is close to the solid angle ⁇ , the greater the impact point on the surface reflection 24 is close to the optical axis A-A.
- the inner annular part 28 of the surface of reflection 24 does not receive the light rays R2 which are reflect on the annular part 40 of the outlet surface 26. It is therefore optically neutral
- the transverse dimension of the central part 42 of the outlet area 26 is mainly determined by the axial depth of the optical part 12, since this value is related to the value of the solid angle ⁇ which is fixed.
- a small axial depth of the optical part 12 so that the area of the central part 42 of the outlet surface 26 is much less than the area of the part annular 40.
- the annular part 40 occupies for example eighty percent of outlet surface 26.
- the invention makes it possible, for example, to produce a signaling 10 whose axial depth is less than thirty millimeters, for a front opening, i.e. for a overall dimensions at the exit of the light 10, at least eighty millimeters.
- each reflecting crown 36 is faceted, that is to say that it comprises a series of facets of elementary reflections (not shown), which are for example circumferentially adjacent to each other.
- Each facet is provided to spatially distribute the light rays forward so that the traffic light 10 forms at the front a lighting beam performing a function of regulatory signage chosen.
- each facet has an optimized profile to achieve at the front of the traffic light 10, on a measurement screen, an image generally in the form of diamond.
- the diamond is not regular. It must have a height, along a vertical axis, less than its width, along an axis horizontal. So the profile of each facet must be optimized to allow a shape to form on the measurement screen approximates the diamond sought here.
- the input surface 22 and the light source 14 of the second embodiment are arranged symmetrically respectively with respect to the input surface 22 and to the source light 14 of the first embodiment, according to a symmetry with respect to a transverse plane.
- the power supply of the light source 14 is more complex to design, because it must be carried out by the front of the light 10. It may be necessary, for example, to run a power cable in front of the surface of exit 26.
- the reflecting surface 24 here has the shape of a cap spherical centered on the optical axis A-A, whose radius is large enough for the reflection surface 24 to be generally transverse, and whose axial depth is substantially equal to the axial depth of the optical part 12.
- the outer peripheral edge of the reflecting surface 24 is here directly connected to the outer peripheral edge of the outlet surface 26.
- the radius of the reflecting surface 24 and the axial distance between the reflection surface 24 and the source 14 are chosen, so that the majority of the light rays emitted by the source 14 is reflected on the reflecting surface 24 according to the principle of total reflection.
- the light rays R3 which are contained in a solid angle ⁇ of determined value, from the source 14, cannot have a sufficient angle of inclination relative to to the reflection surface 24, to reflect on the principle of total reflection on the reflection surface 24.
- the solid angle ⁇ delimits, in the reflection surface 24, a central part 45, and an annular part 47.
- the rear face of the central portion 45 is coated with a layer of reflective material and it has facets of reflection (not shown), of so that the rays R3, which are contained in the solid angle ⁇ , are reflected towards the exit surface 26.
- the outlet surface 26 has the shape of a centered crown on the optical axis A-A, which includes an annular part interior 46, optically neutral, and an annular part exterior 48.
- the inner annular part 46 is planar, and it extends transversely outwards, from the peripheral edge 32 from the entry surface 22 to the inner peripheral edge 50 of the outer annular part 48.
- the outer annular part 48 of the outlet surface 26 is made here in the form of a Fresnel lens, which comprises a series of concentric annular dioptres 52.
- the operation of the light 10 according to the second mode of achievement is as follows.
- the light rays R4 which are emitted outside the angle solid ⁇ are reflected on the annular part 47 of the surface reflection 24, according to the principle of total reflection, and then they reach the outer annular part 48 of the outlet surface 26.
- the spokes luminous R4 are refracted by the dioptres 52 so that they are emitted forward in a direction substantially parallel to the optical axis A-A, to perform the signaling function.
- the light rays R3 which reach the central part 45 from the reflecting surface 24 are reflected towards the part outer annular 48 of the outlet surface 26, where they are refracted by the dioptres 52 towards the front.
- the inner annular part 46 of the outlet surface 26 is optically neutral, since it does not receive no light rays coming from the diode 14.
- the invention therefore makes it possible to produce a signaling light 10 having a large outlet surface 26, for a small axial size.
- the signaling light 10 allows exploit the majority of the light flux emitted by a source point, such as a diode 14, to perform a function of regulatory signage.
- the part optic 12 is optically “autonomous”, ie it performs the signaling function on its own, without it being necessary to add a reflector and / or diffusion glass.
- the optical part 12 achieves both the recovery of the light rays emitted by the source 14 and the distribution of light rays at the front so as to achieve selected signaling function.
- the signaling light 10 according to the invention can be arranged inside a case comprising a glass external protection, for example in a case which groups together all traffic lights associated with the different functions regulations.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Communication System (AREA)
- Holo Graphy (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
- la source lumineuse est agencée au moins partiellement entre la surface de réflexion et la surface de sortie ;
- la source lumineuse est une diode électroluminescente comportant un globe de diffusion lumineuse ;
- la surface d'entrée a globalement la forme d'une calotte sphérique concave dont le centre coïncide globalement avec le coeur de la source lumineuse, de manière que les rayons lumineux émis par la source pénètrent dans la pièce optique, globalement sans se réfracter ;
- le globe de diffusion lumineuse a la forme d'une calotte sphérique convexe dont le centre coïncide globalement avec le centre de la surface d'entrée ;
- la surface de réflexion est revêtue d'une couche de matériau réfléchissant, par exemple une couche d'aluminium ;
- la surface de réflexion comporte des couronnes de réflexion qui sont inclinées vers l'axe optique et vers l'avant ;
- la surface de sortie est formée par une série de dioptres qui dévient les rayons lumineux provenant de la surface de réflexion, de manière que les rayons lumineux soient émis vers l'avant suivant une direction globalement parallèle à l'axe optique ;
- la surface d'entrée est orientée vers l'arrière, et la surface de sortie comporte au moins une partie annulaire dont la génératrice décrit un angle d'inclinaison, par rapport à l'axe optique, tel que les rayons lumineux émis par la source se réfléchissent sur cette partie annulaire, selon le principe de la réflexion totale, vers la surface de réflexion ;
- la surface de sortie comporte une partie centrale globalement en forme de calotte sphérique convexe, dont le centre est décalé axialement vers l'arrière, par rapport au centre de la surface d'entrée, de manière que les rayons lumineux, émis par la source, qui atteignent la partie centrale, se réfractent vers l'avant suivant une direction sensiblement parallèle à l'axe optique ;
- la partie centrale définit avec la source un angle solide de valeur déterminée, qui contient globalement les rayons lumineux dont l'angle d'inclinaison, par rapport à l'angle d'inclinaison de la génératrice de la partie annulaire, est insuffisant pour permettre leur réflexion totale sur la surface de sortie ;
- la surface d'entrée est orientée vers l'avant, et la surface de réflexion comporte au moins une partie annulaire dont la génératrice décrit un angle d'inclinaison, par rapport à l'axe optique, tel que les rayons lumineux émis par la source se réfléchissent sur cette partie annulaire, selon le principe de la réflexion totale, vers la surface de sortie ;
- la figure 1 est une vue éclatée en perspective de trois quarts arrière avec arrachement qui représente un feu de signalisation réalisé conformément aux enseignements de l'invention selon un premier mode de réalisation ;
- la figure 2 est une vue en coupe axiale qui représente le feu de signalisation de la figure 1 ;
- la figure 3 est une vue similaire à celle de la figure 2 qui représente un feu de signalisation réalisé conformément aux enseignements de l'invention selon un deuxième mode de réalisation.
Claims (12)
- Feu de signalisation (10), notamment pour un véhicule automobile, du type comportant un axe optique central (A-A) orienté de l'arrière vers l'avant, suivant le sens de propagation du faisceau lumineux émis par le feu (10), une source lumineuse (14) globalement ponctuelle disposée sur cet axe optique (A-A), et une pièce optique pleine (12), au moins en partie de révolution autour de l'axe optique (A-A), qui est réalisée dans une matière transparente d'indice de réfraction supérieur à celui de l'air, du type dans lequel la pièce optique (12) comporte une surface d'entrée (22), et une surface de sortie (26) globalement transversale qui est conçue pour transmettre les rayons lumineux (R) vers l'avant, suivant une direction globalement parallèle à l'axe optique (A-A), de manière à réaliser une fonction de signalisation déterminée,
caractérisé en ce que la pièce optique (12) comporte une surface de réflexion (24) globalement transversale qui est agencée axialement en vis-à-vis de la surface de sortie (26) ;
et en ce que la surface d'entrée (22) est agencée axialement entre la surface de réflexion (24) et la surface de sortie (26),
de manière que les rayons lumineux (R) qui pénètrent dans la pièce optique (12) par la surface d'entrée (22) soient réfléchis par la surface de réflexion (24) vers la surface de sortie (26). - Feu de signalisation (10) selon la revendication précédente, caractérisé en ce que la source lumineuse (14) est agencée au moins partiellement entre la surface de réflexion (24) et la surface de sortie (26).
- Feu de signalisation (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la source lumineuse (14) est une diode électroluminescente comportant un globe de diffusion lumineuse (20).
- Feu de signalisation (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface d'entrée (22) a globalement la forme d'une calotte sphérique concave dont le centre (S) coïncide globalement avec le coeur de la source lumineuse (14), de manière que les rayons lumineux (R) émis par la source (14) pénètrent dans la pièce optique (12), globalement sans se réfracter.
- Feu de signalisation (10) selon la revendication précédente, prise en combinaison avec la revendication 3, caractérisé en ce que le globe de diffusion lumineuse (20) a la forme d'une calotte sphérique convexe dont le centre coïncide globalement avec le centre (S) de la surface d'entrée (22).
- Feu de signalisation (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface de réflexion (24) est revêtue d'une couche de matériau réfléchissant, par exemple une couche d'aluminium.
- Feu de signalisation (10) selon la revendication précédente, caractérisé en ce que la surface de réflexion (24) comporte des couronnes de réflexion (36) qui sont inclinées vers l'axe optique (A-A) et vers l'avant.
- Feu de signalisation (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface de sortie (26) est formée par une série de dioptres (52) qui dévient les rayons lumineux (R) provenant de la surface de réflexion (24), de manière que les rayons lumineux (R) soient émis vers l'avant suivant une direction globalement parallèle à l'axe optique (A-A).
- Feu de signalisation (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la surface d'entrée (22) est orientée vers l'arrière, et en ce que la surface de sortie (26) comporte au moins une partie annulaire (40) dont la génératrice décrit un angle d'inclinaison (α), par rapport à l'axe optique (A-A), tel que les rayons lumineux (R) émis par la source (14) se réfléchissent sur cette partie annulaire (40), selon le principe de la réflexion totale, vers la surface de réflexion (24).
- Feu de signalisation (10) selon la revendication précédente, prise en combinaison avec la revendication 4 ou 5, caractérisé en ce que la surface de sortie (26) comporte une partie centrale (42) globalement en forme de calotte sphérique convexe, dont le centre (C) est décalé axialement vers l'arrière, par rapport au centre (S) de la surface d'entrée (22), de manière que les rayons lumineux (R1), émis par la source (14), qui atteignent la partie centrale (42), se réfractent vers l'avant suivant une direction sensiblement parallèle à l'axe optique (A-A).
- Feu de signalisation (10) selon la revendication précédente, caractérisé en ce que la partie centrale (42) définit avec la source (14) un angle solide (β) de valeur déterminée, qui contient globalement les rayons lumineux (R1) dont l'angle d'inclinaison, par rapport à l'angle d'inclinaison de la génératrice de la partie annulaire (40), est insuffisant pour permettre leur réflexion totale sur la surface de sortie (26).
- Feu de signalisation (10) selon la revendication 8, caractérisé en ce que la surface d'entrée (22) est orientée vers l'avant, et en ce que la surface de réflexion (24) comporte au moins une partie annulaire (47) dont la génératrice décrit un angle d'inclinaison, par rapport à l'axe optique (A-A), tel que les rayons lumineux (R) émis par la source (14) se réfléchissent sur cette partie annulaire (47), selon le principe de la réflexion totale, vers la surface de sortie (26).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0206756 | 2002-05-31 | ||
| FR0206756A FR2840388B1 (fr) | 2002-05-31 | 2002-05-31 | Feu de signalisation comportant une piece optique realisant une fonction de signalisation de maniere autonome |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1367318A1 true EP1367318A1 (fr) | 2003-12-03 |
| EP1367318B1 EP1367318B1 (fr) | 2004-10-06 |
Family
ID=29415182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03291049A Expired - Lifetime EP1367318B1 (fr) | 2002-05-31 | 2003-04-30 | Feu de signalisation comportant une pièce optique réalisant une fonction de signalisation de manière autonome |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20040207993A1 (fr) |
| EP (1) | EP1367318B1 (fr) |
| JP (1) | JP2004134357A (fr) |
| AT (1) | ATE278908T1 (fr) |
| DE (1) | DE60300076T2 (fr) |
| ES (1) | ES2229194T3 (fr) |
| FR (1) | FR2840388B1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1589282A1 (fr) * | 2004-04-21 | 2005-10-26 | C.R.F. Società Consortile per Azioni | Feu pour véhicules, sous forme de plaque mince |
| ITMI20121399A1 (it) * | 2012-08-07 | 2014-02-08 | Artemide Spa | Lampada di illuminazione a led |
| FR3032517A1 (fr) * | 2015-02-05 | 2016-08-12 | Valeo Vision | Dispositif lumineux de vehicule |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4677256B2 (ja) * | 2005-03-17 | 2011-04-27 | キヤノン株式会社 | 発光装置 |
| JP4585390B2 (ja) * | 2005-06-23 | 2010-11-24 | アルプス電気株式会社 | 環状導光体 |
| JP4733009B2 (ja) * | 2006-01-30 | 2011-07-27 | 豊田合成株式会社 | 車両用灯具 |
| KR101363938B1 (ko) * | 2012-07-13 | 2014-02-19 | 케이에스씨비 주식회사 | 자동차 후미등 |
| DE102013207716A1 (de) * | 2013-04-26 | 2014-10-30 | Zumtobel Lighting Gmbh | LED-Leuchte mit einer Lichtleiter-Anordnung |
| JP6629601B2 (ja) * | 2016-01-21 | 2020-01-15 | 株式会社エンプラス | 光束制御部材、発光装置、面光源装置および表示装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5707130A (en) * | 1995-12-21 | 1998-01-13 | Reitter & Schefenacker Gmbh & Co. Kg | Taillight for vehicles, especially for motor vehicles |
| WO1999009349A1 (fr) * | 1997-08-12 | 1999-02-25 | Decoma International Inc. | Lentille bireflective |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6289914A (ja) * | 1985-05-31 | 1987-04-24 | Sumitomo Electric Ind Ltd | 光素子一体型光導波路およびその製法 |
| DE3904657A1 (de) * | 1989-02-16 | 1990-08-23 | Vdo Schindling | Zeigerinstrument |
| US5046805A (en) * | 1990-07-16 | 1991-09-10 | Simon Jerome H | Tapered optical waveguides for uniform energy (light) distribution including energy bridging |
| JPH0651129A (ja) * | 1992-07-27 | 1994-02-25 | Inoue Denki Kk | 照明装置 |
| US5613751A (en) * | 1995-06-27 | 1997-03-25 | Lumitex, Inc. | Light emitting panel assemblies |
| US6473554B1 (en) * | 1996-12-12 | 2002-10-29 | Teledyne Lighting And Display Products, Inc. | Lighting apparatus having low profile |
| JPH10260404A (ja) * | 1997-03-18 | 1998-09-29 | Seiko Epson Corp | 照明装置、液晶表示装置及び電子機器 |
| US6305813B1 (en) * | 1999-08-11 | 2001-10-23 | North American Lighting, Inc. | Display device using a light guide for exterior automotive lighting |
-
2002
- 2002-05-31 FR FR0206756A patent/FR2840388B1/fr not_active Expired - Lifetime
-
2003
- 2003-04-30 AT AT03291049T patent/ATE278908T1/de not_active IP Right Cessation
- 2003-04-30 DE DE60300076T patent/DE60300076T2/de not_active Expired - Lifetime
- 2003-04-30 ES ES03291049T patent/ES2229194T3/es not_active Expired - Lifetime
- 2003-04-30 EP EP03291049A patent/EP1367318B1/fr not_active Expired - Lifetime
- 2003-05-23 JP JP2003146441A patent/JP2004134357A/ja active Pending
- 2003-05-29 US US10/449,044 patent/US20040207993A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5707130A (en) * | 1995-12-21 | 1998-01-13 | Reitter & Schefenacker Gmbh & Co. Kg | Taillight for vehicles, especially for motor vehicles |
| WO1999009349A1 (fr) * | 1997-08-12 | 1999-02-25 | Decoma International Inc. | Lentille bireflective |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1589282A1 (fr) * | 2004-04-21 | 2005-10-26 | C.R.F. Società Consortile per Azioni | Feu pour véhicules, sous forme de plaque mince |
| ITMI20121399A1 (it) * | 2012-08-07 | 2014-02-08 | Artemide Spa | Lampada di illuminazione a led |
| EP2696226A1 (fr) * | 2012-08-07 | 2014-02-12 | ARTEMIDE S.p.A. | Dispositif d'éclairage à DEL |
| US9063257B2 (en) | 2012-08-07 | 2015-06-23 | Artemide S.P.A. | LED illumination lamp |
| FR3032517A1 (fr) * | 2015-02-05 | 2016-08-12 | Valeo Vision | Dispositif lumineux de vehicule |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2229194T3 (es) | 2005-04-16 |
| US20040207993A1 (en) | 2004-10-21 |
| EP1367318B1 (fr) | 2004-10-06 |
| DE60300076D1 (de) | 2004-11-11 |
| DE60300076T2 (de) | 2005-11-10 |
| JP2004134357A (ja) | 2004-04-30 |
| ATE278908T1 (de) | 2004-10-15 |
| FR2840388A1 (fr) | 2003-12-05 |
| FR2840388B1 (fr) | 2004-07-30 |
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