EP1422470A1 - Dispositif projecteur pour véhicule automobile avec plage éclairante élargie - Google Patents
Dispositif projecteur pour véhicule automobile avec plage éclairante élargie Download PDFInfo
- Publication number
- EP1422470A1 EP1422470A1 EP03292834A EP03292834A EP1422470A1 EP 1422470 A1 EP1422470 A1 EP 1422470A1 EP 03292834 A EP03292834 A EP 03292834A EP 03292834 A EP03292834 A EP 03292834A EP 1422470 A1 EP1422470 A1 EP 1422470A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projector device
- lens
- face
- light
- reflector
- 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
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000009792 diffusion process Methods 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 description 13
- 241001080024 Telles Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004438 eyesight Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
- F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
-
- 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/36—Combinations of two or more separate reflectors
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/337—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector having a structured surface, e.g. with facets or corrugations
Definitions
- the present invention relates to a projector device intended for be used in particular in a motor vehicle, which provides a beach illuminant widened compared to some devices projectors the state of the technical.
- the main purpose of the invention is to propose a improvement in existing elliptical-type spotlighting devices, which have in particular an illuminating surface of very small size.
- beach illuminating, or illuminating surface denotes a zone, at the exit of a projector device, where the light comes from.
- the projector device according to the invention essentially finds its application in use as low beam, but it could nevertheless be used in any other type of projector device city.
- the description of the invention in the context of low beam therefore in no way limiting to this application alone.
- the first family is that of so-called parabolic projectors.
- a light beam is generated by a source small sized luminous device arranged in a reflector, or mirror.
- the projection on the road of the light rays reflected by a reflector appropriate to obtain directly a light beam obeying the different constraints imposed by the standards.
- Such a projector device may possibly be supplemented by an ice-type exit surface, which can be provided for example with streaks to modify the beam bright, for example by spreading it in width.
- This family of projectors includes so-called free-surface projectors, or complex surfaces, which allow to directly obtain a light beam with a line cutoff desired. The illuminating surface of this type of projectors is relatively important.
- the second family is that of so-called elliptical projectors. It is in this type of projectors that the object of the invention finds its main interest.
- a spot of light concentration is generated by a light source arranged in a mirror.
- the light concentration spot is then projected onto the road by a convergent lens, for example a plano-convex lens.
- the spot of light concentration is partially obscured by example by means of a metal cover disposed within the device projector.
- FIG. 1 An essential problem of these solutions appears in Figure 1.
- a projector device 100 of elliptical type comprising in particular a light source 101, a reflector 102, an intermediate 103, a cover 104, a projection lens 105 and a lens holder 106.
- a light source 101 a light source 101
- a reflector 102 a reflector 102
- an intermediate 103 a cover 104
- a projection lens 105 and a lens holder 106.
- the Fresnel rings or the frosted ring not shown, we use light signals 107 of direct light, ie light coming directly from the source 101 without being reflected by the reflector 102.
- the signals light 106 pass through intermediate 103 via openings arranged for this purpose.
- a projector device that allows, while retaining the classic structure of elliptical spotlight devices, to get a more illuminating range important than that of the devices of the state of the art without change the structure of existing intermediaries, and in particular without weaken them by opening openings.
- the lens it is proposed to deform an area of the lens to deflect a portion of the light signals reaching said lens to send these signals to a ring reflector disposed around the lens.
- the light signals that are diverted can be from the direct or indirect light; in addition, the deformation of the lens is such that it allows a contribution of light as well in the high part as in the lower part of the ring reflector so as to homogenize the beach complementary illuminant produced by the ring reflector. This characteristic remains valid even in the presence of a cache in the device projector.
- the zone of deformation of the lens is preferably chosen not to change the main light beam, initially produced by the lens, which must meet certain standards.
- provision may be made to ensure continuity between the projection lens and the ring reflector in the visual impression of the whole, that is to say that an antagonistic driver does not see any unlighted area between the initial illuminating surface produced by the lens and the complementary illuminating surface produced by the reflector in ring.
- the invention therefore essentially relates to a projector device including a light source emitting a set of light signals, a main reflector to reflect at least a part said main light signals and a projection lens for broadcasting a light beam, characterized in that the projection lens has at least one protuberance for deflecting a set of signals illuminated towards a ring reflector disposed on the periphery of the lens projection.
- the ring reflector may consist of a single piece or a juxtaposition of reflective elements. It can also be under the shape of a ring portion only.
- Another object of the invention is a motor vehicle equipped with minus a headlamp device having at least one of the characteristics which have just been described.
- Figures 2 to 4 we have shown schematically a projector device 200 according to the invention.
- Figure 2 shows a light source 201 disposed within of a main reflector 202.
- a projection lens 203 is traversed by its center by an optical axis 204, the optical axis 204 also supporting the light source 201.
- the intermediate and the cache, which may be present in some embodiments, of the projector device 200 have not been shown.
- the projection lens 203 is surrounded by a ring reflector 205. It also has on its exit face 207, ie the face accessible from outside the projector device, two deformed zones 206 which contrast with the usually smooth appearance of this exit face. These areas correspond to protuberances; they mark a break by showing a prominent area on at least one of the faces usually smooth lenses used.
- the protuberances are disposed on substantially all of the lateral periphery of the lens 203. By lateral circumference is the area of the lens located near its periphery, with the exception of the high and low peaks of this lens. In other examples of embodiment, the protuberances 206 can be join at its high and low peaks and thus perform a ride complete lens 203.
- the light source 201 produces a set of light signals 208 of which a part is brought to meet the protuberances 206, that this either directly, it is the case of the direct light, or after reflection, it is the case of the so-called indirect light, at the level of the main reflector 202.
- the light signals encountering a protuberance 206 are deflected, preferably radially, ie in a plane approximately perpendicular, within 10 degrees, to the optical axis 204. They then reach the reflective surface of the ring reflector 205, and are broadcast in a predetermined direction.
- streaks 209 are made to places where reflective light is not or little used in the main beam produced by the projector device 200. Thus, will favor the arrangement of striations at the level of an upper cheek 210 of the main reflector 202.
- the number and arrangement of streaks 209 is determined to achieve a uniform distribution of light intensity reflected by the ring reflector 205.
- the streaks 209 are not essential for certain elliptical projectors that do not possess no cache.
- FIGS. 3 and 4 show two different examples of deviation, according to two possibilities of device according to the invention.
- FIG. 3 which represents a horizontal section of the lens of projection 203 associated with the ring reflector 205.
- Light rays incident 211 of direct and / or indirect light, reach the lens 203 at level of an entry surface 212 of this lens.
- Light rays not necessarily contained in a horizontal plane, those which are shown correspond to a projection on the plane represented by rays encountering the protuberance 206 at this plane.
- the incident rays 211 undergo a first deviation at the level of the input surface 212 and are directed to one of the protuberances 206 disposed on an exit face 207 of the projection lens 203.
- Each protuberance 206 corresponds to a prism which is characterized in particular by a first face 213 and a second face 214.
- the first face 213 is a reflection face of the incident rays 211.
- the reflection face is flat; it is arranged so that a angle defined between a normal to this surface and the rays that come the hitting is greater than a limit angle of reflection, so that the rays 211 incidents are totally reflected at the surface of reflection 213.
- the light rays 211 are then directed towards the second face 214, which is a diffusion face.
- the light signals may or may not be a new deviation at the level of the diffusion face 214 to be sent to the reflective face of the ring reflector 205.
- the shape the reflective surface of the ring reflector 205 is such that the light signals are reflected in a direction previously determined. Typically, a horizontal section of this surface reflective is a parabola bow.
- the signals reflected by the ring reflector 205 are diffused in a direction substantially parallel to the optical axis, plus precisely in a direction corresponding to the normalized point B50L.
- the set of light signals scattered by the ring reflector 205 constitutes a complementary beam 216 which is therefore produced by a complementary illuminating surface.
- Complementary illuminating surface thus corresponds to the surface of the reflector ring 205 actually used to reflect light signals.
- the complementary beam 216 obtained in this embodiment is relatively narrow and is not directly adjacent to the light beam principal directly from the projection lens 203.
- Embodiments of the invention are provided in the invention.
- projector 200 for example that illustrated in FIG. 4, in which a complementary light beam 217 is wider than the beam complementary light 216.
- a reflection face is provided. 215 which is no longer flat, but curved. Normal to the reflection face 215 has a direction that varies in every point of this reflection face; in consequently, incident light signals 211, which arrive in parallel directions on this face, are not reflected in directions parallel as they were in the example of Figure 3. Curvature of the reflection face 215 is calculated so that the incident rays are transmitted to the entire reflecting surface of the ring reflector 205.
- a larger complementary beam 217 is thus obtained which, by elsewhere, because of the proximity between the ring reflector 205 and the lens projection 203, is directly adjacent to the main light beam directly produced by the lens 203.
- a diffusion face 214 curve instead of or in combination of the face of reflection curve 215, a diffusion face 214 curve to obtain also an expanded complementary light beam 217.
- the different deviations suffered by the rays bright at the protuberances 206 have the effect of diffusing radially, ie in a plane approximately perpendicular to the optical axis 204, a set of light rays which are thus likely to reach the reflecting surface of the ring reflector in the whole of its circumference, that the protuberances 206 meet or not at the upper and lower ends of the lens 203.
- this embodiment notably makes it possible to avoid making streaks 209 on the reflector for to be able to reach the lower part of the protuberances 206 in the case where the projector device has a cache.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
- des feux de position, d'intensité et de portée faible ;
- des feux de croisement, ou codes, d'intensité plus forte et de portée sur la route avoisinant 70 mètres, qui sont utilisés essentiellement la nuit et dont la répartition du faisceau lumineux est telle qu'elle permet de ne pas éblouir le conducteur d'un véhicule croisé ;
- des feux de route longue portée, et des feux de complément de type longue portée, dont la zone de vision sur la route avoisine 200 mètres, et qui doivent être éteints lorsque l'on croise un autre véhicule afin de ne pas éblouir son conducteur ;
- des projecteurs perfectionnés, dits bimodes, qui cumulent les fonctions de feux de croisement et de feu de route en incorporant un cache amovible ;
- des feux anti-brouillard.
- d'une part, un conducteur antagoniste risque d'être trompé par la petite taille de la plage éclairante, et croire ainsi que le véhicule produisant une telle plage éclairante est plus éloigné qu'il ne l'est en réalité;
- d'autre part, le contraste visuel entre le dispositif projecteur elliptique et les éléments qui l'entourent est très important. Or ce contraste accentue fortement les effets d'éblouissements pour le conducteur antagoniste. En effet, on sait que, à niveau d'éclairement identique, plus la plage éclairante est petite, plus la concentration de lumière est importante sur au moins une partie de la rétine d'un oeil, et plus le phénomène d'éblouissement est fort.
- une première solution consistant en l'utilisation d'anneaux de Fresnel qui entourent la lentille et un intermédiaire, l'intermédiaire étant une pièce qui permet de maintenir la lentille et qui est solidaire du réflecteur;
- une deuxième solution consistant en l'utilisation d'un anneau dépoli qui entoure l'intermédiaire et la lentille.
- en présence du cache 104, il est difficile d'envoyer de la lumière dans la partie basse de l'anneau ; la plage éclairante complémentaire, et donc la plage éclairante totale, n'est alors pas homogène ;
- l'intermédiaire 103 doit être ouvert le plus possible afin de faire parvenir à l'anneau autant de lumière directe que possible, et afin de lui donner un aspect homogène, notamment en l'absence de cache. Cependant, en ouvrant l'intermédiaire 103, on fragilise le dispositif projecteur 100, car, du fait du poids important de la lentille 105, les risques de rupture sont augmentés de façon significative en cas de choc.
- chaque protubérance est disposée au niveau d'au moins une partie du pourtour de la lentille de projection ;
- l'ensemble des signaux déviés est constitué de signaux de lumière directe et/ou indirecte;
- une partie supérieure du réflecteur principal comporte au moins une strie pour dévier des signaux lumineux vers une partie inférieure de la lentille de projection ;
- la déviation des signaux lumineux déviés par chaque protubérance s'effectue radialement ;
- au moins une protubérance est en forme de strie présentant une première face, dite face de réflexion, et une deuxième face, dite face de diffusion, les signaux lumineux déviés par chaque protubérance étant essentiellement, notamment totalement, réfléchis par la face de réflexion puis essentiellement, notamment totalement diffusés par la face de diffusion ;
- la face de diffusion et/ou la face de réflexion sont courbées pour dévier les signaux lumineux sur la totalité de la largeur du réflecteur en anneau ;
- le réflecteur en anneau présente une section horizontale parabolique ;
- les signaux lumineux déviés reçus par le réflecteur en anneau sont réfléchis dans une direction voisine d'un axe optique du dispositif projecteur ;
- le dispositif projecteur comporte une source lumineuse secondaire pour produire des signaux lumineux essentiellement, notamment exclusivement destinés à être déviés par au moins une desdites protubérances ;
- chaque protubérance est disposée sur une face de sortie de la lentille de projection.
- à la figure 1, déjà décrite, une représentation schématique d'un dispositif projecteur elliptique de l'état de la technique présentant une plage éclairante élargie ;
- à la figure 2, une représentation schématique d'un dispositif projecteur selon l'invention ;
- à la figure 3, une coupe horizontale d'une partie d'un premier exemple de réalisation du dispositif projecteur selon l'invention ;
- à la figure 4, une coupe horizontale d'une partie d'un deuxième exemple de réalisation du dispositif projecteur selon l'invention.
Claims (12)
- Dispositif projecteur (200) comprenant notamment une source lumineuse (201) émettant un ensemble de signaux lumineux, un réflecteur principal (202) pour réfléchir au moins une partie desdits signaux lumineux et une lentille de projection (203) pour diffuser un faisceau lumineux principal, caractérisé en ce que la lentille de projection (203) comporte au moins une protubérance (206) pour dévier un ensemble de signaux lumineux vers un réflecteur en anneau (205) disposé à la périphérie de la lentille de projection (203).
- Dispositif projecteur (200) selon la revendication précédente caractérisé en ce que chaque protubérance (206) est disposée au niveau d'au moins une partie du pourtour de la lentille de projection (203).
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce que l'ensemble des signaux déviés est constitué de signaux de lumière directe et/ou indirecte.
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce qu' une partie supérieure du réflecteur principal (202) comporte au moins une strie (209) pour dévier des signaux lumineux vers une partie inférieure de la lentille de projection (203).
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce que la déviation des signaux lumineux déviés par chaque protubérance (206) s'effectue radialement.
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce que au moins une protubérance (206) est en forme de strie présentant une première face (213;215), dite face de réflexion, et une deuxième face (214), dite face de diffusion, les signaux lumineux déviés par chaque protubérance (206) étant essentiellement, notamment totalement, réfléchis par la face de réflexion (213;215) puis essentiellement, notamment totalement, diffusés par la face de diffusion (214).
- Dispositif projecteur (200) selon la revendication précédente caractérisé en ce que la face de diffusion (214) et/ou la face de réflexion (213;215) sont courbées pour dévier les signaux lumineux sur l'essentiel, notamment la totalité, de la largeur du réflecteur en anneau (205).
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce que le réflecteur en anneau (205) présente une section horizontale parabolique.
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce que les signaux lumineux déviés reçus par le réflecteur en anneau (205) sont réfléchis dans une direction voisine d'un axe optique (204) du dispositif projecteur (200).
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce qu'il comporte une source lumineuse secondaire pour produire des signaux lumineux essentiellement, notamment exclusivement, destinés à être déviés par au moins une desdites protubérances (206).
- Dispositif projecteur (200) selon l'une au moins des revendications précédentes caractérisé en ce que chaque protubérance (206) est disposée sur une face de sortie (207) de la lentille de projection (203).
- Véhicule automobile équipé d'un dispositif projecteur (200) selon l'une au moins des revendications précédentes.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0214912 | 2002-11-22 | ||
| FR0214912A FR2847656B1 (fr) | 2002-11-22 | 2002-11-22 | Dispositif projecteur avec plage eclairante elargie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1422470A1 true EP1422470A1 (fr) | 2004-05-26 |
| EP1422470B1 EP1422470B1 (fr) | 2017-04-12 |
Family
ID=32187820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03292834.3A Expired - Lifetime EP1422470B1 (fr) | 2002-11-22 | 2003-11-14 | Dispositif projecteur pour véhicule automobile avec plage éclairante élargie |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1422470B1 (fr) |
| FR (1) | FR2847656B1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2792938A3 (fr) * | 2013-04-17 | 2015-09-09 | Valeo Vision | Module optique et dispositif d'éclairage et/ou de signalisation pour véhicule automobile |
| CN105121946A (zh) * | 2013-04-02 | 2015-12-02 | 市光工业株式会社 | 车辆用灯具 |
| US9829689B2 (en) | 2013-05-14 | 2017-11-28 | Ledil Oy | Light guide for modifying a light distribution pattern |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2878020B1 (fr) * | 2004-11-18 | 2008-12-19 | Valeo Vision Sa | Dispositif d'eclairage et/ou de signalisation pour automobile produisant un faisceau lumineux sur le cote d'un vehicule automobile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949226A (en) * | 1988-06-24 | 1990-08-14 | Koito Seisakusko Co., Ltd. | Projector-type lighting device of expanded outline appearance for use as a vehicular headlamp or the like |
| FR2770618A1 (fr) * | 1997-11-04 | 1999-05-07 | Valeo Vision | Projecteur du genre elliptique a plage eclairante agrandie |
| EP1052449A2 (fr) * | 1999-05-10 | 2000-11-15 | Hella KG Hueck & Co. | Projecteur pour véhicules |
-
2002
- 2002-11-22 FR FR0214912A patent/FR2847656B1/fr not_active Expired - Fee Related
-
2003
- 2003-11-14 EP EP03292834.3A patent/EP1422470B1/fr not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4949226A (en) * | 1988-06-24 | 1990-08-14 | Koito Seisakusko Co., Ltd. | Projector-type lighting device of expanded outline appearance for use as a vehicular headlamp or the like |
| FR2770618A1 (fr) * | 1997-11-04 | 1999-05-07 | Valeo Vision | Projecteur du genre elliptique a plage eclairante agrandie |
| EP1052449A2 (fr) * | 1999-05-10 | 2000-11-15 | Hella KG Hueck & Co. | Projecteur pour véhicules |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105121946A (zh) * | 2013-04-02 | 2015-12-02 | 市光工业株式会社 | 车辆用灯具 |
| EP2985522A4 (fr) * | 2013-04-02 | 2017-02-22 | Ichikoh Industries, Ltd. | Optique de véhicule |
| CN105121946B (zh) * | 2013-04-02 | 2018-03-02 | 市光工业株式会社 | 车辆用灯具 |
| EP2792938A3 (fr) * | 2013-04-17 | 2015-09-09 | Valeo Vision | Module optique et dispositif d'éclairage et/ou de signalisation pour véhicule automobile |
| US9829689B2 (en) | 2013-05-14 | 2017-11-28 | Ledil Oy | Light guide for modifying a light distribution pattern |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2847656B1 (fr) | 2006-04-14 |
| EP1422470B1 (fr) | 2017-04-12 |
| FR2847656A1 (fr) | 2004-05-28 |
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