EP1544538B1 - Vehicle headlight with a lamp holder - Google Patents

Vehicle headlight with a lamp holder Download PDF

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Publication number
EP1544538B1
EP1544538B1 EP04293038A EP04293038A EP1544538B1 EP 1544538 B1 EP1544538 B1 EP 1544538B1 EP 04293038 A EP04293038 A EP 04293038A EP 04293038 A EP04293038 A EP 04293038A EP 1544538 B1 EP1544538 B1 EP 1544538B1
Authority
EP
European Patent Office
Prior art keywords
ring
light source
reflector
side wall
locking
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.)
Not-in-force
Application number
EP04293038A
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German (de)
French (fr)
Other versions
EP1544538A1 (en
Inventor
Jean-Louis Velay
Benoît Lery
Jonathan Blandin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
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Valeo Vision SAS
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Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1544538A1 publication Critical patent/EP1544538A1/en
Application granted granted Critical
Publication of EP1544538B1 publication Critical patent/EP1544538B1/en
Not-in-force legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/194—Bayonet attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/30—Ventilation or drainage of lighting devices
    • F21S45/33—Ventilation or drainage of lighting devices specially adapted for headlamps

Definitions

  • the present invention relates to a projector device equipped with a lamp holder for receiving and maintaining a light source. Its main purpose is to facilitate the establishment of the light source on a projector device.
  • All of the projectors that have just been mentioned comprise at least one light source and a reflector comprising at least one optical system, each optical system being each composed of a light source associated with a reflector composed of a set of surfaces.
  • reflective devices whose arrangement and orientation are defined to produce a particular light beam.
  • a light source 100 essentially comprises a bulb 101, fixed on a base 102 serving as a bulb holder.
  • the base 102 may consist of several concentric cylindrical portions 103; fixing lugs 104 are arranged radially around a periphery of the cylindrical portion of the base which is furthest from the bulb 101.
  • the fixing lugs are three in number and are evenly distributed around the periphery of the base.
  • the three fixing lugs 104 may be of whose lateral part is not curved.
  • the second ring has a circular central orifice 207, which is completed by three recesses 208.
  • the recesses 208 are used for the introduction of the fixing lugs 104 in the collar 203. They can be of variable size, depending on the size of the leg 104 which they must accommodate.
  • the circular side wall 206 has three recesses 209 which create a space allowing the rotation of the fixing lugs 104 during a rotational movement of the light source 100 relative to the reflector 200 to perform the locking operation.
  • the first ring 204 and the second ring 205 are closed, that is to say that, considered separately, they constitute a complete loop around a central orifice.
  • Document US Pat. No. 4,947,294 shows an exemplary embodiment of such a collar.
  • the flange 203 was made of a thermoplastic material; it had to be secured to the reflector 200 by means of various fastening elements, screws, rings ... Due to the reduction of the size of the reflectors used, the thermal stresses have evolved, and the thermoplastic materials do not prove more heat-resistant enough to withstand the temperature concentrations observed on a projector device turned on for a while.
  • the collars made of thermoplastic material were then replaced by collars made of materials more resistant to heat, for example aluminum, magnesium or various metal alloys. In addition to their resistance to heat, the manufacture of fastening flanges in such materials has made it possible to produce one-piece projecting devices, in which the reflector made of these same materials and the fastening flange constitute a single piece obtained by molding.
  • a connector 105 allowing the power supply of the bulb 101, is secured to the base 102.
  • the connector 105 is for example made in the form of a bend.
  • the present invention is applicable to all the projectors devices, mentioned above, which are equipped with light sources whose fixing lugs are arranged radially on a base of the light source, as shown in Figure 1 .
  • the light source 100 is intended to be fixed on a reflector, of the type shown in FIGS. 2 and 3 by a single fastening operation, decomposable into a translational movement, to introduce the light source bulb through the light source. a cavity at the top of the reflector, combined with a rotational movement, for locking the light source on the reflector.
  • a reflector 200 in which the light source 100 has been placed, is represented at different angles.
  • the reflector 200 consists of an outer face 201, and a non-visible inner face.
  • the inner face is also called the optical surface of the reflector: it is it which is responsible for reflecting the light rays emitted by the light source 100 when the latter is fixed on the reflector 200 and the bulb 101 radiates.
  • the reflector 200 has a circular opening 202 formed approximately at its top. Typically, there is a fastening flange 203 at the opening 202.
  • the fastening collar serves as a lamp holder element.
  • the flange 203 used in the state of the art, consists of a first ring 204, said lower ring, flat, closed and facing the opening of the reflector, of a second ring 205, said upper ring, flat and closed, the first ring 204, the second ring 205 and the circular opening 202 of the reflector 200 being concentric, and a circular side wall 206 connecting the first ring 204 to the second ring 205.
  • Ring means a coin circular, or approximately circular, having a circular or approximately circular central orifice.
  • the fixing lugs rotate in the recesses 209, wedged between the first ring 204 and the second ring 205.
  • the light sources that can be used have high dimensional dispersions, especially at their base, or base; the fastening lugs may therefore rub strongly, or even hang, during the locking operation which is rendered difficult.
  • the positioning quality of the light source with respect to the optical surface, defined by a plane perpendicular to the optical axis of the projector device considered, is thus degraded.
  • Such a problem was not encountered with the use of thermoplastic materials in the manufacture of the fastening flanges, these materials being able to deform relatively easily to enable the locking operation.
  • the projector device solves the problems that have just been mentioned.
  • a projector device equipped with a flange for fixing a light source, said flange being firstly made of a material resistant to heat, and secondly characterized by a certain flexibility , comparable to that of the thermoplastic materials previously used, so that the locking operation of the light source on the projector device is done without excessive friction, unacceptable, fastening lugs.
  • the fastening flange especially at the level of the upper ring.
  • the latter is no longer closed, but has a set of discontinuities such that the upper ring has a set of sufficiently flexible blades to facilitate the locking operation.
  • the flexibility of the blades also provides a guarantee as to the quality of positioning of the light source with respect to the optical surface, the flexible tabs exerting a uniform support on the base of the light source.
  • Another object of the invention is a motor vehicle equipped with a projector device having the main characteristics and possibly one or more of the secondary characteristics which have just been mentioned.
  • a reflector 400 involved in the projector device according to the invention comprises in particular an outer face 401, an inner face 402 and a circular opening 403 formed approximately at its top.
  • the reflector 400 is intended to receive a light source of the type of that shown in FIG. 1.
  • the light source is intended to be received and held by a fixing flange 404, which, in the example in question, is slightly away from the opening 403: holding tabs 405 support the flange 404 within a few centimeters of the opening 403 so that a central space 406 is created between the flange and the opening 403, thus allowing a good evacuation of the generated heat by the light source.
  • the flange 404 is disposed directly at the level of the opening 403, as is the case in the state of the art shown in FIGS. 2 and 3.
  • the flange 404 consists of a first ring 407, said lower ring, flat, closed and facing the opening 403 of the reflector 400, a second ring 408, said upper ring , flat, the first ring 407, the second ring 408 and the circular opening 403 of the reflector 400 being concentric, and a circular side wall 409 connecting the first ring 407 to the second ring 408.
  • the second ring 408 has a central hole circular 410, which is completed by three recesses 411. As in the state of the art, the recesses 411 are used for the introduction of the fixing lugs 104 in the collar 404.
  • the second ring 408 is not closed: it has a set of discontinuities 412 which, considered separately, the second ring 408 does not constitute a complete loop around its central hole 410.
  • Disco 412 in the example shown, are three in number; they are, considering the direction of locking of the light source on the reflector 400, in continuity, the extension of the recesses 411.
  • the circular side wall 409 has three recesses 413 which create a space allowing the rotation of the fixing lugs 104 during the lock operation.
  • the recesses 413 are also three in number, and are, considering the locking direction of the light source on the reflector 400, in continuity, the extension, discontinuities 412; said discontinuities being moreover extended over the entire thickness of the side wall 409, as well as the recesses 411.
  • Such an architecture makes it possible to obtain three flexible tabs 414, one end of which is close to each discontinuity 412 is free.
  • the flexible tabs 414 make it possible to obtain a structure of the upper ring 408 which is much less rigid than that of the state of the art.
  • the flexible tabs 414 are profiled: their thickness increases from their free end towards their end embedded in the side wall 409, as can be seen in FIG. 4. The stresses are thus homogeneously distributed. mechanical during the locking operation, eliminating any risk of breakage flexible tabs 414.
  • it is expected to have, at the free end of each flexible tab 414, a boss 415 directed towards the first 407.
  • the bosses 415 allow the flexible tabs 414 come to exert a homogeneous pressure on the base 103 of the light source so as to keep it ideally placed after the locking operation completed. Providing the bosses 415 at the ends of the flexible tabs 414 makes them easier to cross for the fastening lugs 104.
  • the non-return device opposes a rotational movement of the light source in a direction opposite to the locking direction.
  • the anti-return device consists of a piece 416 of the side wall 409 which then constitutes a support zone of a protuberance 417 oriented towards the inside of the collar 404. It is arranged, considering the opposite direction of the locking direction. , in the extension of one of the discontinuities 412 and one of the recesses 413.
  • a cavity 418 is formed in the side wall 409 between the first ring 407 and the said zone. support 416 of the non-return device.
  • the non-return device is thus not in contact, at its support zone 416, with the first ring 407.
  • the non-return device therefore allows a certain freedom of movement, in a radial direction, so that it does not permanently block the light source 100 in the attachment flange 404.
  • a force makes it possible, thanks to the flexibility thus provided, to rotate in the direction opposite to the locking direction, for example to change the light source.
  • a locking abutment 419 which is in the form of a wall, contained in the thickness and height of the side wall 409; contacting a fastening tab 104 with one of the locking abutments 419 marks the end of the locking operation.
  • the projector device according to the invention therefore has the advantage of having a reflector associated with a flange which can be made in a single piece, in a material having good thermal properties to resist the heat released by the light source, while providing a great ease when performing the operation of locking the light source in the fastening flange.
  • the projector device according to the invention is able to accept the dimensional variations of the lamps without disturbing the assembly or operation.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The device has a fixation flange with a lower ring and an upper ring presenting three upsets (411) and three discontinuities formed in the extension of the upsets. A lateral circular wall connecting the rings has three recesses placed in the extension of the discontinuities so that three flexible lugs (414) are obtained. The recesses create spaces permitting the rotation of fixation lugs of a light source while locking the source. An independent claim is also included for a motor vehicle equipped with a projector device.

Description

La présente invention a pour objet un dispositif projecteur équipé d'un porte-lampe destiné à recevoir et à maintenir une source lumineuse. Elle a essentiellement pour but de faciliter la mise en place de la source lumineuse sur un dispositif projecteur.The present invention relates to a projector device equipped with a lamp holder for receiving and maintaining a light source. Its main purpose is to facilitate the establishment of the light source on a projector device.

Le domaine de l'invention est, d'une façon générale, celui des projecteurs de véhicule automobile. Dans ce domaine, on connaît différents types de projecteurs, parmi lesquels on trouve essentiellement :

  • 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 feux anti-brouillard...
The field of the invention is, in general, that of motor vehicle headlights. In this field, we know different types of projectors, among which we find essentially:
  • position, intensity and low range lights;
  • low beam, or codes, of greater intensity and range on the road of about 70 meters, which are used mainly at night and whose distribution of the light beam is such that it does not dazzle the driver of a crossover vehicle;
  • long-range headlamps, and long-range supplement lights, whose vision zone on the road is approximately 200 meters, and which must be extinguished when crossing another vehicle so as not to dazzle its driver;
  • fog lights ...

L'ensemble des dispositifs projecteurs qui viennent d'être mentionnés comprennent au moins une source lumineuse et un réflecteur comportant au moins un système optique, chaque système optique étant composé chacun d'une source lumineuse associée à un réflecteur composé d'un ensemble de surfaces réfléchissantes dont la disposition et l'orientation sont définies de manière à produire un faisceau lumineux particulier.All of the projectors that have just been mentioned comprise at least one light source and a reflector comprising at least one optical system, each optical system being each composed of a light source associated with a reflector composed of a set of surfaces. reflective devices whose arrangement and orientation are defined to produce a particular light beam.

Un exemple de source lumineuse qu'il est possible d'utiliser est du type de celui représenté à la figure 1. Sur cette figure, une source lumineuse 100 comporte essentiellement une ampoule 101, fixée sur une embase 102 servant de support d'ampoule. L'embase 102 peut être constituée de plusieurs parties cylindriques concentriques 103 ; des pattes de fixation 104 sont disposées radialement sur un pourtour de la partie cylindrique de l'embase qui est la plus éloignée de l'ampoule 101. De préférence, comme c'est le cas par exemple avec les sources lumineuses HB3 et HB4, les pattes de fixation sont au nombre de trois et sont régulièrement réparties sur le pourtour de l'embase. Les trois pattes de fixation 104 peuvent être de dont la partie latérale n'est pas courbée.An example of a light source that can be used is of the type shown in FIG. 1. In this figure, a light source 100 essentially comprises a bulb 101, fixed on a base 102 serving as a bulb holder. The base 102 may consist of several concentric cylindrical portions 103; fixing lugs 104 are arranged radially around a periphery of the cylindrical portion of the base which is furthest from the bulb 101. Preferably, as is the case for example with the light sources HB3 and HB4, the fixing lugs are three in number and are evenly distributed around the periphery of the base. The three fixing lugs 104 may be of whose lateral part is not curved.

Le deuxième anneau présente un orifice central circulaire 207, qui est complété par trois décrochements 208. Les décrochements 208 servent à l'introduction des pattes de fixation 104 dans la collerette 203. Ils peuvent être de taille variable, dépendant de la taille de la patte de fixation 104 qu'ils doivent accueillir. La paroi latérale circulaire 206 présente trois évidements 209 qui créent un espace permettant la rotation des pattes de fixation 104 lors d'un mouvement de rotation de la source lumineuse 100 par rapport au réflecteur 200 pour réaliser l'opération de verrouillage.The second ring has a circular central orifice 207, which is completed by three recesses 208. The recesses 208 are used for the introduction of the fixing lugs 104 in the collar 203. They can be of variable size, depending on the size of the leg 104 which they must accommodate. The circular side wall 206 has three recesses 209 which create a space allowing the rotation of the fixing lugs 104 during a rotational movement of the light source 100 relative to the reflector 200 to perform the locking operation.

Le premier anneau 204 et le deuxième anneau 205 sont fermés, c'est à dire que, considérés séparément, ils constituent une boucle complète autour d'un orifice central. Le document US 4 947 294 montre un exemple de réalisation d'une telle collerette.The first ring 204 and the second ring 205 are closed, that is to say that, considered separately, they constitute a complete loop around a central orifice. Document US Pat. No. 4,947,294 shows an exemplary embodiment of such a collar.

Dans l'état de la technique, on utilise désormais des collerettes monobloc, le premier anneau 204, le deuxième anneau 205 et la paroi latérale 206 constituant une unique pièce obtenue par moulage. Initialement, la collerette 203 était réalisée dans une matière thermoplastique ; elle devait être solidarisée sur le réflecteur 200 au moyen de différents éléments de fixation, de type vis, bagues... Du fait de la réduction de la taille des réflecteurs utilisés, les contraintes thermiques ont évolué, et les matériaux thermoplastiques ne s'avèrent plus assez résistants à la chaleur pour supporter les concentrations de température observées sur un dispositif projecteur allumé pendant un certain temps. Les collerettes en matériau thermoplastiques on alors été remplacées par des collerettes réalisées dans des matériaux plus résistants à la chaleur, par exemple l'aluminium, le magnésium ou divers alliages métalliques. Outre leur résistance à la chaleur, la fabrication des collerettes de fixation dans de tels matériaux a rendu possible la réalisation de dispositifs projecteurs monoblocs, où le réflecteur, réalisé dans ces mêmes matériaux, et la collerette de fixation constituent une pièce unique obtenue par moulage.In the state of the art, one now uses monobloc flanges, the first ring 204, the second ring 205 and the side wall 206 constituting a single piece obtained by molding. Initially, the flange 203 was made of a thermoplastic material; it had to be secured to the reflector 200 by means of various fastening elements, screws, rings ... Due to the reduction of the size of the reflectors used, the thermal stresses have evolved, and the thermoplastic materials do not prove more heat-resistant enough to withstand the temperature concentrations observed on a projector device turned on for a while. The collars made of thermoplastic material were then replaced by collars made of materials more resistant to heat, for example aluminum, magnesium or various metal alloys. In addition to their resistance to heat, the manufacture of fastening flanges in such materials has made it possible to produce one-piece projecting devices, in which the reflector made of these same materials and the fastening flange constitute a single piece obtained by molding.

Cependant, on rencontre des difficultés avec l'utilisation de tels matériaux pour la réalisation des collerettes de fixation : ces matériaux ne sont pas souples ; il se déforment beaucoup moins facilement que les matériaux thermoplastiques précédemment utilisés pour la fabrication des collerettes. L'opération de verrouillage des sources lumineuses dans les collerettes de fixation pose alors un problème. dimensions variables pour réaliser un détrompage lors d'une opération de fixation sur un support d'ampoules. Un connecteur 105, permettant l'alimentation électrique de l'ampoule 101, est solidarisé avec l'embase 102. Afin de limiter l'encombrement de la source lumineuse, le connecteur 105 est par exemple réalisé sous la forme d'un coude.However, there are difficulties with the use of such materials for the production of fastening collars: these materials are not flexible; they deform much less easily than the thermoplastic materials previously used for the manufacture of collars. The operation of locking the light sources in the fastening flanges then poses a problem. variable dimensions to perform a keying during a fixing operation on a bulb holder. A connector 105, allowing the power supply of the bulb 101, is secured to the base 102. In order to limit the size of the light source, the connector 105 is for example made in the form of a bend.

D'une façon générale, la présente invention est applicable à l'ensemble des dispositifs projecteurs, précédemment mentionnés, qui sont équipés de sources lumineuses dont les pattes de fixation sont disposés radialement sur une embase de la source lumineuse, comme montré à la figure 1.In general, the present invention is applicable to all the projectors devices, mentioned above, which are equipped with light sources whose fixing lugs are arranged radially on a base of the light source, as shown in Figure 1 .

La source lumineuse 100 est destinée à être fixée sur un réflecteur, du type de celui représenté aux figures 2 et 3 par une opération de solidarisation unique, décomposable en un mouvement de translation, pour introduire l'ampoule de la source lumineuse au travers d'une cavité ménagée au sommet du réflecteur, combiné à un mouvement de rotation, pour effectuer le verrouillage de la source lumineuse sur le réflecteur.The light source 100 is intended to be fixed on a reflector, of the type shown in FIGS. 2 and 3 by a single fastening operation, decomposable into a translational movement, to introduce the light source bulb through the light source. a cavity at the top of the reflector, combined with a rotational movement, for locking the light source on the reflector.

Sur ces figures, un réflecteur 200, dans lequel on a placé la source lumineuse 100, est représenté sous des angles différents. Le réflecteur 200 est constitué d'une face externe 201, et d'une face interne non visible. La face interne est également appelée surface optique du réflecteur : c'est elle qui est chargée de réfléchir les rayons lumineux émis par la source lumineuse 100 quand cette dernière est fixée sur le réflecteur 200 et que l'ampoule 101 rayonne.In these figures, a reflector 200, in which the light source 100 has been placed, is represented at different angles. The reflector 200 consists of an outer face 201, and a non-visible inner face. The inner face is also called the optical surface of the reflector: it is it which is responsible for reflecting the light rays emitted by the light source 100 when the latter is fixed on the reflector 200 and the bulb 101 radiates.

Le réflecteur 200 comporte une ouverture circulaire 202 ménagée approximativement à son sommet. Typiquement, on dispose une collerette de fixation 203 au niveau de l'ouverture 202. La collerette de fixation sert d'élément porte-lampe. La collerette 203, utilisée dans l'état de la technique, est constituée d'un premier anneau 204, dit anneau inférieur, plat, fermé et en regard de l'ouverture du réflecteur, d'un deuxième anneau 205, dit anneau supérieur, plat et fermé, le premier anneau 204, le deuxième anneau 205 et l'ouverture circulaire 202 du réflecteur 200 étant concentriques, et d'une paroi latérale circulaire 206 reliant le premier anneau 204 au deuxième anneau 205. Par anneau, on désigne une pièce circulaire, ou approximativement circulaire, présentant un orifice central circulaire, ou approximativement circulaire. Par anneaux plats, on désigne les anneauxThe reflector 200 has a circular opening 202 formed approximately at its top. Typically, there is a fastening flange 203 at the opening 202. The fastening collar serves as a lamp holder element. The flange 203, used in the state of the art, consists of a first ring 204, said lower ring, flat, closed and facing the opening of the reflector, of a second ring 205, said upper ring, flat and closed, the first ring 204, the second ring 205 and the circular opening 202 of the reflector 200 being concentric, and a circular side wall 206 connecting the first ring 204 to the second ring 205. Ring means a coin circular, or approximately circular, having a circular or approximately circular central orifice. By flat rings, we designate the rings

En effet, une fois introduites dans les dégagements 208, les pattes de fixation entrent en rotation dans les évidements 209, coincés entre le premier anneau 204 et le deuxième anneau 205. Or les sources lumineuses susceptibles d'être utilisées présentent de fortes dispersions dimensionnelles, notamment au niveau de leur embase, ou culot ; les pattes de fixation risquent donc de frotter fortement, voire de se bloquer, lors de l'opération de verrouillage qui s'en trouve rendue délicate. La qualité de positionnement de la source lumineuse vis à vis de la surface optique, définie par un plan perpendiculaire à l'axe optique du dispositif projecteur considéré, est ainsi dégradée. Un tel problème ne se rencontrait pas avec l'utilisation de matériaux thermoplastiques dans la fabrication des collerettes de fixation, ces matériaux pouvant se déformer relativement facilement pour permettre l'opération de verrouillage.Indeed, once introduced into the clearances 208, the fixing lugs rotate in the recesses 209, wedged between the first ring 204 and the second ring 205. However, the light sources that can be used have high dimensional dispersions, especially at their base, or base; the fastening lugs may therefore rub strongly, or even hang, during the locking operation which is rendered difficult. The positioning quality of the light source with respect to the optical surface, defined by a plane perpendicular to the optical axis of the projector device considered, is thus degraded. Such a problem was not encountered with the use of thermoplastic materials in the manufacture of the fastening flanges, these materials being able to deform relatively easily to enable the locking operation.

Le dispositif projecteur selon l'invention permet de résoudre les problèmes qui viennent d'être évoqués. Dans l'invention, on propose un dispositif projecteur équipé d'une collerette de fixation d'une source lumineuse, la dite collerette étant d'une part réalisée dans une matière résistante à la chaleur, et d'autre part caractérisé par une certaine souplesse, comparable à celle des matériaux thermoplastiques précédemment utilisés, pour que l'opération de verrouillage de la source lumineuse sur le dispositif projecteur se fasse sans frottement excessif, rédhibitoire, des pattes de fixation.The projector device according to the invention solves the problems that have just been mentioned. In the invention, there is provided a projector device equipped with a flange for fixing a light source, said flange being firstly made of a material resistant to heat, and secondly characterized by a certain flexibility , comparable to that of the thermoplastic materials previously used, so that the locking operation of the light source on the projector device is done without excessive friction, unacceptable, fastening lugs.

Pour atteindre cet objectif, on propose notamment, dans l'invention, de modifier la structure de la collerette de fixation, notamment au niveau de l'anneau supérieur. Dans l'invention, ce dernier n'est plus fermé, mais présente un ensemble de discontinuités telles que l'anneau supérieur comporte un ensemble de lames suffisamment flexibles pour faciliter l'opération de verrouillage. La flexibilité des lames apporte par ailleurs une garantie quant à la qualité de positionnement de la source lumineuse vis à vis de la surface optique, les pattes flexibles exerçant un appui uniforme sur l'embase de la source lumineuse.To achieve this objective, it is proposed in particular, in the invention, to modify the structure of the fastening flange, especially at the level of the upper ring. In the invention, the latter is no longer closed, but has a set of discontinuities such that the upper ring has a set of sufficiently flexible blades to facilitate the locking operation. The flexibility of the blades also provides a guarantee as to the quality of positioning of the light source with respect to the optical surface, the flexible tabs exerting a uniform support on the base of the light source.

L'invention concerne donc principalement un dispositif projecteur comportant notamment :

  • une source lumineuse comportant notamment une ampoule, une embase servant de support d'ampoule, et un ensemble de pattes de fixation disposées radialement sur l'embase ;
  • un réflecteur, comportant une ouverture circulaire pour introduire l'ampoule, une collerette de fixation pour maintenir la source lumineuse suite à une opération de verrouillage de la source lumineuse consistant notamment en un mouvement de rotation dans un sens de verrouillage de la source lumineuse par rapport à la collerette,
  • la collerette de fixation étant formée d'un premier anneau plat, plein et en regard de l'ouverture du réflecteur, d'un deuxième anneau plat, le premier anneau, le deuxième anneau et l'ouverture circulaire du réflecteur étant concentriques, et d'une paroi latérale circulaire reliant le premier anneau au deuxième anneau,
le deuxième anneau présentant un ensemble de décrochements pour introduire les pattes de fixation de la source lumineuse, caractérisé en ce que chaque décrochement est prolongé, en considérant le sens de verrouillage, d'une discontinuité, chaque discontinuité du deuxième anneau étant prolongée, en considérant le sens de verrouillage, par un évidement de la paroi latérale, de telle sorte que le deuxième anneau présente un ensemble de pattes flexibles.The invention therefore mainly relates to a projector device comprising in particular:
  • a light source comprising in particular a bulb, a base serving as a bulb holder, and a set of fixing lugs arranged radially on the base;
  • a reflector, having a circular opening for introducing the bulb, a fixing flange for holding the light source following a locking operation of the light source consisting in particular of a rotational movement in a direction of locking the light source relative to at the collar,
  • the fixing flange being formed of a first flat ring, solid and opposite the opening of the reflector, of a second flat ring, the first ring, the second ring and the circular opening of the reflector being concentric, and a circular side wall connecting the first ring to the second ring,
the second ring having a set of recesses for introducing the fastening lugs of the light source, characterized in that each recess is extended, considering the direction of locking, of a discontinuity, each discontinuity of the second ring being extended, considering the locking direction, by a recess of the side wall, so that the second ring has a set of flexible tabs.

Le dispositif projecteur selon l'invention peut, outre les caractéristiques principales qui viennent d'être mentionnées, présenter une ou plusieurs des caractéristiques secondaires suivantes :

  • la collerette de fixation comporte au moins un élément anti-retour, chaque élément anti-retour étant constitué d'une protubérance orientée vers l'intérieur de la collerette pour gêner un mouvement, dans un sens opposé au sens de verrouillage, d'une des pattes de fixation, chaque protubérance étant supportée au niveau d'une zone de la paroi latérale précédant, en considérant le sens de verrouillage, un des évidements de la paroi latérale ;
  • chaque zone de support d'une protubérance est détachée du premier anneau, une cavité étant ménagée, dans la paroi latérale, entre le premier anneau et la zone de support considérée ;
  • chaque patte flexible présente une extrémité libre à l'extrémité de laquelle est disposé un bossage en regard du premier anneau, chaque bossage étant destiné à venir en appui sur l'embase de la source lumineuse, au moins après l'opération de verrouillage ;
  • au moins une des pattes flexibles est profilée ;
  • au moins un évidement de la paroi latérale comporte une butée de verrouillage pour marquer la fin du mouvement en rotation, dans le sens de verrouillage, de la source lumineuse par rapport à la collerette de fixation ;
  • le réflecteur et la collerette de fixation constituent une pièce monobloc ;
  • le réflecteur et la collerette de fixation sont en aluminium, en magnésium ou en un alliage comportant au moins de l'aluminium et/ou du magnésium.
The projector device according to the invention may, in addition to the main characteristics which have just been mentioned, have one or more of the following secondary characteristics:
  • the fixing flange comprises at least one non-return element, each non-return element consisting of a protuberance oriented towards the inside of the flange to impede a movement, in a direction opposite to the locking direction, of one of the fixing lugs, each protuberance being supported at a region of the preceding side wall, considering the locking direction, one of the recesses of the side wall;
  • each support zone of a protrusion is detached from the first ring, a cavity being formed in the side wall between the first ring and the support zone considered;
  • each flexible tab has a free end at the end of which is disposed a boss facing the first ring, each boss being intended to bear against the base of the light source, at least after the locking operation;
  • at least one of the flexible tabs is profiled;
  • at least one recess of the side wall has a locking abutment to mark the end of the rotational movement, in the locking direction, of the light source with respect to the attachment flange;
  • the reflector and the fastening flange constitute a single piece;
  • the reflector and the attachment collar are made of aluminum, magnesium or an alloy comprising at least aluminum and / or magnesium.

Un autre objet de l'invention est un véhicule automobile équipé d'un dispositif projecteur présentant les caractéristiques principales et éventuellement une ou plusieurs des caractéristiques secondaires qui viennent d'être mentionnées.Another object of the invention is a motor vehicle equipped with a projector device having the main characteristics and possibly one or more of the secondary characteristics which have just been mentioned.

L'invention et ses différentes applications seront mieux comprises à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent. Celles-ci ne sont présentées qu'à titre indicatif et nullement limitatif de l'invention. Les figures montrent :

  • à la figure 1, déjà décrite, une représentation d'une source lumineuse, existant dans l'état de la technique, et également utilisée dans les dispositifs projecteurs selon l'invention ;
  • à la figure 2, également déjà décrite, une première représentation d'un dispositif projecteur de l'état de la technique ;
  • à la figure 3, également déjà décrite, une deuxième représentation d'un dispositif projecteur de l'état de la technique ;
  • à la figure 4, une première vue d'un exemple de dispositif projecteur selon l'invention ;
  • à la figure 5, une deuxième vue de l'exemple de dispositif projecteur selon l'invention montré à la figure 4 ;
  • à la figure 6, une troisième vue de l'exemple de dispositif projecteur selon l'invention montré aux figures 4 et 5 ;
  • à la figure 7, une quatrième vue de l'exemple de dispositif projecteur selon l'invention montré aux figures 4 à 6.
The invention and its various applications will be better understood by reading the following description and examining the figures that accompany it. These are presented only as an indication and in no way limitative of the invention. The figures show:
  • in Figure 1, already described, a representation of a light source, existing in the state of the art, and also used in the projectors devices according to the invention;
  • in Figure 2, also already described, a first representation of a projector device of the state of the art;
  • in Figure 3, also already described, a second representation of a projector device of the state of the art;
  • in Figure 4, a first view of an exemplary projector device according to the invention;
  • in FIG. 5, a second view of the exemplary projector device according to the invention shown in FIG. 4;
  • in Figure 6, a third view of the example of a projector device according to the invention shown in Figures 4 and 5;
  • in FIG. 7, a fourth view of the exemplary projector device according to the invention shown in FIGS. 4 to 6.

Les éléments apparaissant dans différentes figures sont, sauf précision contraire, désignées par les mêmes références, éventuellement utilisées dans les figures déjà décrites. Les figures 4, 5, 6 et 7 montrant, sous des angles de vue différents, un même exemple de dispositif projecteur selon l'invention, ces trois figures sont décrites simultanément.The elements appearing in different figures are, unless otherwise specified, designated by the same references, possibly used in the figures already described. Figures 4, 5, 6 and 7 showing, under different angles of view, the same example of a projector device according to the invention, these three figures are described simultaneously.

Sur ces figures, un réflecteur 400 intervenant dans le dispositif projecteur selon l'invention, comporte notamment une face externe 401, une face interne 402 et une ouverture circulaire 403 ménagée approximativement à son sommet. Le réflecteur 400 est destiné à recevoir une source lumineuse du type de celle montrée à la figure 1. La source lumineuse est destinée à être reçue et maintenue par une collerette de fixation 404, qui, dans l'exemple considéré, est légèrement éloignée de l'ouverture 403 : des pattes de maintien 405 supportent la collerette 404 à quelques centimètres de l'ouverture 403 de telle sorte qu'un espace central 406 est créé entre la collerette et l'ouverture 403, permettant ainsi une bonne évacuation de la chaleur générée par la source lumineuse. Dans d'autres exemples de réalisation du dispositif projecteur selon l'invention, la collerette 404 est disposée directement au niveau de l'ouverture 403, comme c'est le cas dans l'état de la technique montré aux figures 2 et 3.In these figures, a reflector 400 involved in the projector device according to the invention, comprises in particular an outer face 401, an inner face 402 and a circular opening 403 formed approximately at its top. The reflector 400 is intended to receive a light source of the type of that shown in FIG. 1. The light source is intended to be received and held by a fixing flange 404, which, in the example in question, is slightly away from the opening 403: holding tabs 405 support the flange 404 within a few centimeters of the opening 403 so that a central space 406 is created between the flange and the opening 403, thus allowing a good evacuation of the generated heat by the light source. In other exemplary embodiments of the projector device according to the invention, the flange 404 is disposed directly at the level of the opening 403, as is the case in the state of the art shown in FIGS. 2 and 3.

Comme dans l'état de la technique, la collerette 404 est constituée d'un premier anneau 407, dit anneau inférieur, plat, fermé et en regard de l'ouverture 403 du réflecteur 400, d'un deuxième anneau 408, dit anneau supérieur, plat, le premier anneau 407, le deuxième anneau 408 et l'ouverture circulaire 403 du réflecteur 400 étant concentriques, et d'une paroi latérale circulaire 409 reliant le premier anneau 407 au deuxième anneau 408. Le deuxième anneau 408 présente un orifice central circulaire 410, qui est complété par trois décrochements 411. Comme dans l'état de la technique, les décrochements 411 servent à l'introduction des pattes de fixation 104 dans la collerette 404. Contrairement aux collerettes de l'état de la technique, le deuxième anneau 408 n'est pas fermé : il possède un ensemble de discontinuités 412 qui font que, considéré séparément, le deuxième anneau 408 ne constitue pas une boucle complète autour de son orifice central 410. Les discontinuités 412, dans l'exemple représenté, sont au nombre de trois ; elles se trouvent, en considérant le sens de verrouillage de la source lumineuse sur le réflecteur 400, dans la continuité, le prolongement, des décrochements 411.As in the state of the art, the flange 404 consists of a first ring 407, said lower ring, flat, closed and facing the opening 403 of the reflector 400, a second ring 408, said upper ring , flat, the first ring 407, the second ring 408 and the circular opening 403 of the reflector 400 being concentric, and a circular side wall 409 connecting the first ring 407 to the second ring 408. The second ring 408 has a central hole circular 410, which is completed by three recesses 411. As in the state of the art, the recesses 411 are used for the introduction of the fixing lugs 104 in the collar 404. Unlike the collars of the state of the art, the second ring 408 is not closed: it has a set of discontinuities 412 which, considered separately, the second ring 408 does not constitute a complete loop around its central hole 410. Disco 412, in the example shown, are three in number; they are, considering the direction of locking of the light source on the reflector 400, in continuity, the extension of the recesses 411.

Par ailleurs, la paroi latérale circulaire 409 présente trois évidements 413 qui créent un espace permettant la rotation des pattes de fixation 104 lors de l'opération de verrouillage. Les évidements 413 sont également au nombre de trois, et se trouvent, en considérant le sens de verrouillage de la source lumineuse sur le réflecteur 400, dans la continuité, le prolongement, des discontinuités 412 ; lesdites discontinuités étant par ailleurs étendues sur toute l'épaisseur de la paroi latérale 409, tout comme les décrochements 411. Une telle architecture permet d'obtenir trois pattes flexibles 414, dont une extrémité, voisine de chaque discontinuité 412 est libre. Les pattes flexibles 414 permettent d'obtenir une structure de l'anneau supérieur 408 beaucoup moins rigide que celle de l'état de la technique. Une fois introduites dans les décrochements 411, les pattes de fixation 104 peuvent être glissées dans les évidements 413 sans rencontrer de forces de frottements excessives, les pattes flexibles 414 pouvant être légèrement déplacées vers le haut, c'est-à-dire axialement.Furthermore, the circular side wall 409 has three recesses 413 which create a space allowing the rotation of the fixing lugs 104 during the lock operation. The recesses 413 are also three in number, and are, considering the locking direction of the light source on the reflector 400, in continuity, the extension, discontinuities 412; said discontinuities being moreover extended over the entire thickness of the side wall 409, as well as the recesses 411. Such an architecture makes it possible to obtain three flexible tabs 414, one end of which is close to each discontinuity 412 is free. The flexible tabs 414 make it possible to obtain a structure of the upper ring 408 which is much less rigid than that of the state of the art. Once introduced into the recesses 411, the fixing lugs 104 can be slid into the recesses 413 without encountering excessive frictional forces, the flexible lugs 414 being able to be slightly displaced upwards, that is to say axially.

Dans certains exemples de réalisation, les pattes flexibles 414 sont profilées : leur épaisseur augmente de leur extrémité libre vers leur extrémité encastrée dans la paroi latérale 409, comme c'est visible à la figure 4. On répartit ainsi, de façon homogène, les contraintes mécaniques lors de l'opération de verrouillage, éliminant alors tout risque de casse des pattes flexibles 414. Dans l'invention, on prévoit de disposer, au niveau de l'extrémité libre de chaque patte flexible 414, un bossage 415 dirigé vers le premier anneau 407. Les bossages 415 permettent aux pattes flexibles 414 de venir exercer une pression homogène sur l'embase 103 de la source lumineuse de manière à la maintenir idéalement placée une fois l'opération de verrouillage achevée. Le fait de disposer les bossages 415 à l'extrémité des pattes flexibles 414 les rend plus faciles à franchir pour les pattes de fixation 104.In some exemplary embodiments, the flexible tabs 414 are profiled: their thickness increases from their free end towards their end embedded in the side wall 409, as can be seen in FIG. 4. The stresses are thus homogeneously distributed. mechanical during the locking operation, eliminating any risk of breakage flexible tabs 414. In the invention, it is expected to have, at the free end of each flexible tab 414, a boss 415 directed towards the first 407. The bosses 415 allow the flexible tabs 414 come to exert a homogeneous pressure on the base 103 of the light source so as to keep it ideally placed after the locking operation completed. Providing the bosses 415 at the ends of the flexible tabs 414 makes them easier to cross for the fastening lugs 104.

Dans l'invention, on propose de placer dans la collerette 404 au moins un dispositif anti-retour. Le dispositif anti-retour s'oppose à un mouvement de rotation de la source lumineuse dans un sens opposé au sens de verrouillage. Le dispositif anti-retour consiste en un morceau 416 de la paroi latérale 409 qui constitue alors une zone de support d'une protubérance 417 orientée vers l'intérieur de la collerette 404. Il est disposé, en considérant le sens inverse du sens de verrouillage, dans le prolongement d'une des discontinuités 412 et d'un des évidements 413. Une cavité 418 est ménagée dans la paroi latérale 409 entre le premier anneau 407 et ladite zone de support 416 du dispositif anti-retour. Le dispositif anti-retour n'est ainsi pas en contact, au niveau de sa zone de support 416, avec le premier anneau 407. Le dispositif anti-retour permet donc une certaine liberté de mouvement, dans une direction radiale, de telle sorte qu'il ne bloque pas définitivement la source lumineuse 100 dans la collerette de fixation 404. Un effort permet, grâce à la flexibilité ainsi apportée, d'effectuer une rotation dans le sens opposé au sens de verrouillage, pour par exemple changer la source lumineuse.In the invention, it is proposed to place in the flange 404 at least one anti-return device. The non-return device opposes a rotational movement of the light source in a direction opposite to the locking direction. The anti-return device consists of a piece 416 of the side wall 409 which then constitutes a support zone of a protuberance 417 oriented towards the inside of the collar 404. It is arranged, considering the opposite direction of the locking direction. , in the extension of one of the discontinuities 412 and one of the recesses 413. A cavity 418 is formed in the side wall 409 between the first ring 407 and the said zone. support 416 of the non-return device. The non-return device is thus not in contact, at its support zone 416, with the first ring 407. The non-return device therefore allows a certain freedom of movement, in a radial direction, so that it does not permanently block the light source 100 in the attachment flange 404. A force makes it possible, thanks to the flexibility thus provided, to rotate in the direction opposite to the locking direction, for example to change the light source.

Dans certains perfectionnements du dispositif selon l'invention, on prévoit de disposer dans au moins un des évidements 413 une butée de verrouillage 419, qui se présente sous la forme d'un muret, contenu dans l'épaisseur et la hauteur de la paroi latérale 409 ; l'entrée en contact d'une patte de fixation 104 avec une des butées de verrouillage 419 marque la fin de l'opération de verrouillage.In some improvements of the device according to the invention, provision is made in at least one of the recesses 413 a locking abutment 419, which is in the form of a wall, contained in the thickness and height of the side wall 409; contacting a fastening tab 104 with one of the locking abutments 419 marks the end of the locking operation.

Le dispositif projecteur selon l'invention présente donc l'avantage de présenter un réflecteur associé à une collerette qui peuvent être réalisés en une pièce monobloc, dans un matériau présentant de bonnes propriétés thermiques pour résister à la chaleur dégagée par la source lumineuse, tout en offrant une grande aisance lors de la réalisation de l'opération de verrouillage de la source lumineuse dans la collerette de fixation. De plus, le dispositif projecteur selon l'invention est capable d'accepter les variations dimensionnelles des lampes sans perturber ni l'assemblage ni le fonctionnement.The projector device according to the invention therefore has the advantage of having a reflector associated with a flange which can be made in a single piece, in a material having good thermal properties to resist the heat released by the light source, while providing a great ease when performing the operation of locking the light source in the fastening flange. In addition, the projector device according to the invention is able to accept the dimensional variations of the lamps without disturbing the assembly or operation.

Claims (9)

  1. Headlamp device comprising in particular:
    - a light source (100) comprising in particular a bulb (101), a base (102) serving as a bulb support, and a set of fixing tabs (104) arranged radially on the base;
    - a reflector (400), comprising a circular opening (403) for inserting the bulb (101), a fixing collar (404) for holding the light source (100) following an operation of locking the light source which consists in particular in a rotational movement in the locking direction of the light source (100) with respect to the collar (404), the fixing collar (404) being formed of a first flat ring (407) which is solid and faces the opening (402) of the reflector (400), a second flat ring (408), the first ring (407), the second ring (408) and the circular opening (403) of the reflector (400) being concentric, and a circular side wall (409) which connects the first ring (407) to the second ring (408),
    the second ring (408) having a set of notches (411) for inserting the fixing tabs (104) of the light source (100), characterized in that each notch (411) is extended, in the locking direction, by a discontinuity (412), each discontinuity (412) of the second ring (408) being extended, in the locking direction, by a recess (413) of the side wall (409), such that the second ring (408) has a set of axially flexible tabs (414).
  2. Headlamp device according to the preceding claim, characterized in that the fixing collar (404) comprises at least one non-return element, each non-return element consisting of a protrusion (417) which is oriented towards the inside of the collar (404) so as to prevent any movement, in a direction opposite the locking direction, of one of the fixing tabs (104), each protrusion (417) being supported at a zone (416) of the side wall (409) which precedes, in the locking direction, one of the recesses (413) of the side wall (409).
  3. Headlamp device according to the preceding claim, characterized in that each support zone for a protrusion (417) is detached from the first ring (407), a cavity (418) being formed, in the side wall (409), between the first ring (407) and the support zone (416) in question.
  4. Headlamp device according to at least one of the preceding claims, characterized in that each flexible tab (414) has a free end, at the end of which a boss (415) is arranged facing the first ring (407), each boss (415) being designed to come to bear against the base (102) of the light source (100), at least after the locking operation.
  5. Headlamp device according to at least one of the preceding claims, characterized in that at least one of the flexible tabs (414) is profiled.
  6. Headlamp device according to at least one of the preceding claims, characterized in that at least one recess (413) of the side wall (409) comprises a locking stop (419) to mark the end of the rotational movement, in the locking direction, of the light source (100) with respect to the fixing collar (404).
  7. Headlamp device according to at least one of the preceding claims, characterized in that the reflector (400) and the fixing collar (404) form a single piece.
  8. Headlamp device according to at least one of the preceding claims, characterized in that the reflector (400) and the fixing collar (404) are made of aluminium, of magnesium or of an alloy comprising at least aluminium and/or magnesium.
  9. Motor vehicle equipped with a headlamp device according to at least one of the preceding claims.
EP04293038A 2003-12-19 2004-12-17 Vehicle headlight with a lamp holder Not-in-force EP1544538B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0315116A FR2864205B1 (en) 2003-12-19 2003-12-19 PROJECTOR DEVICE WITH LAMP HOLDER
FR0315116 2003-12-19

Publications (2)

Publication Number Publication Date
EP1544538A1 EP1544538A1 (en) 2005-06-22
EP1544538B1 true EP1544538B1 (en) 2006-08-02

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EP04293038A Not-in-force EP1544538B1 (en) 2003-12-19 2004-12-17 Vehicle headlight with a lamp holder

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EP (1) EP1544538B1 (en)
AT (1) ATE335164T1 (en)
DE (1) DE602004001746T2 (en)
ES (1) ES2270317T3 (en)
FR (1) FR2864205B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660723B (en) * 2008-10-10 2011-08-10 海洋王照明科技股份有限公司 Projection lamp provided with vibration damper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007022028B4 (en) * 2007-05-11 2016-10-20 Automotive Lighting Reutlingen Gmbh Lighting device for a vehicle, in particular motor vehicle headlights
CN101556028B (en) * 2008-04-09 2010-12-08 海洋王照明科技股份有限公司 Projection lamp

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Publication number Priority date Publication date Assignee Title
FR1522356A (en) * 1967-03-09 1968-04-26 Sev Marchal Automotive Headlight Lamp Mounting Device
FR2638406B1 (en) * 1988-11-03 1990-12-07 Neiman Sa MOTOR VEHICLE PROJECTOR
US4947294A (en) * 1989-04-24 1990-08-07 General Motors Corporation Headlamp assembly
US5010455A (en) * 1990-05-07 1991-04-23 General Motors Corporation Headlamp assembly
US6027236A (en) * 1997-12-04 2000-02-22 Honda Giken Kogyo Kabushiki Kaisha Light assembly for a vehicle having a collar and socket locking connection
DE10140267B4 (en) * 2001-08-16 2007-02-01 Hella Kgaa Hueck & Co. Headlights for vehicles
US6634777B1 (en) * 2002-04-24 2003-10-21 Guide Corporation Molded retention features for internal movable reflector lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660723B (en) * 2008-10-10 2011-08-10 海洋王照明科技股份有限公司 Projection lamp provided with vibration damper

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DE602004001746D1 (en) 2006-09-14
ES2270317T3 (en) 2007-04-01
FR2864205B1 (en) 2006-10-27
FR2864205A1 (en) 2005-06-24
DE602004001746T2 (en) 2007-10-04
EP1544538A1 (en) 2005-06-22
ATE335164T1 (en) 2006-08-15

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