EP0750157B1 - Improved motor vehicle headlamp of the elliptical type - Google Patents

Improved motor vehicle headlamp of the elliptical type Download PDF

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Publication number
EP0750157B1
EP0750157B1 EP96401350A EP96401350A EP0750157B1 EP 0750157 B1 EP0750157 B1 EP 0750157B1 EP 96401350 A EP96401350 A EP 96401350A EP 96401350 A EP96401350 A EP 96401350A EP 0750157 B1 EP0750157 B1 EP 0750157B1
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EP
European Patent Office
Prior art keywords
headlight according
reflector
parts
headlight
occulter
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.)
Expired - Lifetime
Application number
EP96401350A
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German (de)
French (fr)
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EP0750157A2 (en
EP0750157A3 (en
Inventor
Antonio Lopez Vasco
Fermin Gonzalez Gallegos
Vincente Vallejo Fernandez
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Valeo Vision SAS
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Valeo Vision SAS
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Publication date
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Publication of EP0750157A2 publication Critical patent/EP0750157A2/en
Publication of EP0750157A3 publication Critical patent/EP0750157A3/en
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Publication of EP0750157B1 publication Critical patent/EP0750157B1/en
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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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof
    • 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
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • 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
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Definitions

  • the present invention relates to projectors of the elliptical type for motor vehicles.
  • a projector of this kind is conventionally composed a lamp mounted in the region of the first focus of a elliptical type mirror, and a converging lens whose focal plane passes through the second focal point of the mirror to project the image present in the second foyer onto the road.
  • This projector is supplemented if necessary by a concealer placed substantially in said focal plane, so as to form a cut beam whose limits are defined by an upper edge of the screen.
  • either the lens is directly integrated into the projector glass, i.e. the projector has a separate, generally smooth, front window of the lens.
  • the lamp holder PL is assembled to the mirror M, the back of it, around a lamp hole.
  • the projector additionally comprises an intermediate piece PI, which is mounted on the edge of the front opening of the mirror M by extending it forward.
  • This piece PI includes a screen or blackout E intended to give the bundle the desired cutoff profile, as well as a ring B intended to receive and maintain a lens Le par its edges.
  • Such a conventional projector comprises at least three separate parts, which are assembled axially according to arrows F1. This results in a long and expensive, with further alignment problems different parts, this alignment being particularly critical to get a good light beam quality.
  • the lamp holder is essentially formed on one of these parts only, which complicates the manufacture of the part in question, either because it requires the prior assembly of two parts, either because that it makes the production of the part by molding difficult, if not impossible.
  • the present invention aims to propose a new projector construction of the elliptical type, which further simplifies the mounting of the projector.
  • Another object of the present invention is to draw take advantage of this simplified construction to facilitate the integration of the projector in a motor vehicle.
  • the present invention provides a projector for motor vehicle of the type disclosed in JP-U-04-5007, this projector being as defined in claim 1.
  • an elliptical projector which comprises a lamp La, a lens Le, and two parts 100 and 200 suitable for being assembled one to the other perpendicular to the optical axis x-x of the projector, according to arrows F2, to form a lamp holder, a mirror, an intermediate concealer part and a lens holder ring.
  • these two parts end up in a horizontal plane passing through the x-x axis, this however not being in any way limiting.
  • the upper part 100 has a zone PL 'forming upper half lamp holder, an area M 'forming a half mirror upper, a zone PI 'forming an intermediate half-part upper, and a zone B 'forming upper half-ring.
  • the lower part includes a PL zone " forming a lower half lamp holder, an area M “forming lower half mirror, a PI "area forming a half part lower intermediate, and a zone B “forming a half-ring lower.
  • the PI "part, projecting towards the top and in one piece, a screen or screen E is placing substantially in the focal plane of the lens Le.
  • the projector according to Figure 2 also includes a spring R to hold the lamp La on the lamp holder.
  • Parts 100 and 200 can be produced, each in one piece, preferably in any suitable material by molding. So we can make alloy parts aluminum, zinc alloy, resin thermosetting or high melt resin temperature, this enumeration however being in no way limiting. So we can make parts 100 and 200 by stamping sheet steel, brass, aluminum or any other material likely to be stamped.
  • the fixing of the two parts 100, 200 is carried out by for example by gluing, by screwing or by clipping.
  • the upper part 100 comprises, from the rear towards the front, the upper half lamp holder PL ', the half mirror upper M 'laterally bordered by two assembly wings 101, 102, and the upper intermediate half-part PI ' consisting of a generally planar upper wall 130 and horizontal bordered laterally by two recesses vertical on a posterior part of its depth.
  • the half-part PI ' has two feet extending down to the plane of connection with the lower part 200. In these two feet are formed two vertical lights 105, 106 se ending at their lower end with a straight edge (only edge 108 being visible) located near the plane connection, for purposes explained below.
  • the intermediate half PI ends at the front by a front wall in which a semicircular opening surrounded by a bead 110 projecting forward, in which are formed, in cooperation with said front wall, two grooves side 111, 112 intended to cooperate with a rib lens timing device Le.
  • the bead 110 forms the upper half-ring B 'for maintaining the lens.
  • two wings 113, 114 project to the sides in planes perpendicular to the optical axis x-x.
  • the lower part has, from the rear to front, PL "lower half lamp holder, half mirror lower M “laterally bordered by two assembly wings 201, 202 intended to be applied against the wings 101, 102 of part 100, and the intermediate half-part lower PI "consisting of a lower wall 230 generally flat and horizontal bordered laterally by two vertical recesses on a rear part of its depth.
  • the half-part PI has two uprights extending upwards up to the connection plane with the upper part 100. In these two uprights two lights are formed vertical 205, 206 ending at their end lower by a straight edge (only edge 208 being visible) located near the connection plane, at purposes explained below.
  • the intermediate half PI ends at the front by a front wall in which a semicircular opening surrounded by a bead 210 projecting forward, in which are formed, in cooperation with said front wall, two grooves side 211, 212 intended to cooperate with the rib of lens setting Le.
  • the bead 210 forms the half-ring lower B "lens retainer.
  • two wings 213, 214 project to the sides in planes perpendicular to the optical axis x-x and are intended to be locate in the vertical extension of the wings 113, 114 of piece 100.
  • the two parts 100, 200 are assembled one against the other, by trapping the Le lens, and held assembled using a set of metal staples A.
  • pawns of centering engaging in holes are indicated at P, and the holes are indicated at T.
  • Figure 5 shows in detail the structure of the lamp holder for its half PL ', with the retaining spring of the lamp interposed between an outgoing flange 215 of said lamp holder, provided at the free end of an axial part 217, and an annular plate 300.
  • the lateral recesses of the two intermediate half-parts PI 'and PI "jointly define two large openings lateral O1 and 02 heat evacuation.
  • aligned wings 113, 213 and 114, 214 can be used as flanges for the mounting the projector on the vehicle body.
  • FIGS. 9 to 12 we have represented a second embodiment of the projector, which this time is composed of two parts 300, 400 which assemble in a direction perpendicular to the axis optical, but horizontal, with a connection plane vertical.
  • the left piece 300 (in looking at the projector from the front) has a part PL ' forming a left half-lamp holder, a part M 'forming left half mirror, half intermediate part PI 'and half a ring B '.
  • the part 300 comprises a lateral wing 301 extending in a vertical plane over the entire height of the room, substantially in the middle region of the mirror. She also includes a wing 302 extending in a plane vertical passing in the vicinity of the optical axis, on most of the depth of the projector, above and below the room. Wing 302 has a series of centering pins P.
  • the intermediate part PI ' consists of a zone enlarged 304, of rectangular section with rounded corners, in which a side light 306 is formed ventilation.
  • This intermediate part PI ' is closed at the rear by a transverse wall in which is formed a half-opening 310, generally semi-elliptical, for the passage of light. It's closed at the front by a transverse wall in which is formed a circular half-opening to receive the Le lens, this opening being bordered by a bead 307 in which a groove 308 is formed for reception a peripheral retaining rib belonging to the Le lens.
  • a mounting half-ring B ' is thus defined of the lens.
  • wing 302 are formed from rear fittings 303 and earlier 305 intended to cooperate with staples assembly A.
  • the part 300 further comprises, extending to approximately 45 ° upwards and backwards from the base of the half-opening, the first part of the screen or screen oblique E 'which has in its upper part, projecting in direction of room 400 from the vertical plane of connection of the two parts 300 and 400, an extension 312.
  • the part 400 is essentially produced symmetrically from part 300 and has a wing lateral 401 extending in the same vertical plane as wing 301, also over the entire height of the projector. It also includes a wing 402 intended to be attached to wing 302 over its entire extent. Wing 402 has a series of holes T intended to receive the centering pins P during assembly.
  • the intermediate half-part PI " is symmetrical with the intermediate half PI ", with a side light 406 ventilation. It is also closed at the back by a transverse wall in which a half-opening is formed 410 which, with the half-opening 310, defines a generally elliptical opening for the passage of the light from the second focal point of the mirror towards the lens Le.
  • the PI "intermediate half-part is closed at the front by a transverse wall in which a half-opening is formed circular bordered by a bead 407 in which is formed a groove 408 for receiving a peripheral retaining rib belonging to the lens The. This defines a half-ring B "for mounting the lens.
  • wing 402 are formed from rear fittings 403 and earlier 405 intended to cooperate with the arrangements counterparts 303, 305 of part 300 for the clipping of assembly clips A.
  • the part 300 further comprises, extending to approximately 45 ° upwards and backwards from the base of the half-opening 410, a second concealer part or oblique screen E "which has a recess intended for receive the extension 312 of the half screen E '.
  • Figures 13 and 14 illustrate a third mode of realization of the invention, which differs from that of Figures 9 to 12 essentially by an arrangement different from the La lamp.
  • the light output can be increased to the extent that the solid angle, seen from the source, from the mirror part occupied by the lamp holder can be reduced.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Description

La présente invention concerne les projecteurs du genre elliptique pour véhicules automobiles.The present invention relates to projectors of the elliptical type for motor vehicles.

Un projecteur de ce genre se compose classiquement d'une lampe montée dans la région du premier foyer d'un miroir de type elliptique, et d'une lentille convergente dont le plan focal passe par le second foyer du miroir pour projeter sur la route l'image présente au second foyer.A projector of this kind is conventionally composed a lamp mounted in the region of the first focus of a elliptical type mirror, and a converging lens whose focal plane passes through the second focal point of the mirror to project the image present in the second foyer onto the road.

Ce projecteur est complété le cas échéant par un occulteur placé sensiblement dans ledit plan focal, de manière à former un faisceau coupé dont les limites sont définies par une arête supérieure de l'occulteur.This projector is supplemented if necessary by a concealer placed substantially in said focal plane, so as to form a cut beam whose limits are defined by an upper edge of the screen.

Par ailleurs, soit la lentille est directement intégrée à la glace du projecteur, soit le projecteur comporte une glace distincte, généralement lisse, en avant de la lentille.By the way, either the lens is directly integrated into the projector glass, i.e. the projector has a separate, generally smooth, front window of the lens.

On a représenté sur la figure 1 ces divers éléments, dans leur construction classique.These various elements have been represented in FIG. 1, in their classic construction.

Ainsi l'on trouve une lampe La montée dans un porte-lampe PL et fixée à celui-ci par un crochet élastique ou ressort R. Le porte-lampe PL est assemblé au miroir M, à l'arrière de celui-ci, autour d'un trou de lampe. Le projecteur comprend en outre une pièce intermédiaire PI, qui est montée sur le bord de l'ouverture frontale du miroir M en prolongeant celui-ci vers l'avant. Cette pièce PI comporte un écran ou occulteur E destiné à donner au faisceau le profil de coupure souhaité, ainsi qu'une bague B destinée à recevoir et à maintenir une lentille Le par ses bords.So we find a lamp mounted in a lamp holder PL and attached to it by an elastic hook or spring R. The lamp holder PL is assembled to the mirror M, the back of it, around a lamp hole. The projector additionally comprises an intermediate piece PI, which is mounted on the edge of the front opening of the mirror M by extending it forward. This piece PI includes a screen or blackout E intended to give the bundle the desired cutoff profile, as well as a ring B intended to receive and maintain a lens Le par its edges.

Ainsi un tel projecteur classique comporte au moins trois pièces distinctes, qui sont assemblées axialement selon les flèches F1. Il en résulte un montage long et coûteux, avec en outre des problèmes d'alignement des différentes pièces, cet alignement étant particulièrement critique pour obtenir un faisceau lumineux de bonne qualité. Thus such a conventional projector comprises at least three separate parts, which are assembled axially according to arrows F1. This results in a long and expensive, with further alignment problems different parts, this alignment being particularly critical to get a good light beam quality.

On connaít également par le document JP-U-04-5007 publié le 17/01/92 un projecteur du genre elliptique dans lequel le miroir, la bague porte-lentille et la partie intermédiaire qui relie le miroir à la bague sont réalisés en deux parties assemblées l'une à l'autre dans une direction transversale à l'axe optique.We also know from document JP-U-04-5007 published 01/17/92 an elliptical projector in which the mirror, the lens holder ring and the part intermediate that connects the mirror to the ring are made in two parts assembled to each other in a direction transverse to the optical axis.

Cette solution connue simplifie effectivement la fabrication du projecteur.This known solution effectively simplifies the projector manufacturing.

Toutefois, le porte-lampe est formé pour l'essentiel sur l'une de ces parties seulement, ce qui complique la fabrication de la partie en question, soit parce qu'elle nécessite l'assemblage préalable de deux pièces, soit parce qu'elle rend la réalisation de la pièce par moulage difficile, voire impossible.However, the lamp holder is essentially formed on one of these parts only, which complicates the manufacture of the part in question, either because it requires the prior assembly of two parts, either because that it makes the production of the part by molding difficult, if not impossible.

La présente invention vise à proposer une nouvelle construction de projecteur du genre elliptique, qui simplifie encore le montage du projecteur.The present invention aims to propose a new projector construction of the elliptical type, which further simplifies the mounting of the projector.

Un autre objet de la présente invention est de tirer profit de cette construction simplifiée pour faciliter l'intégration du projecteur dans un véhicule automobile.Another object of the present invention is to draw take advantage of this simplified construction to facilitate the integration of the projector in a motor vehicle.

Ainsi la présente invention propose un projecteur pour véhicule automobile du type divulgué dans JP-U-04-5007, ce projecteur étant tel que défini dans la revendication 1. Thus the present invention provides a projector for motor vehicle of the type disclosed in JP-U-04-5007, this projector being as defined in claim 1.

Certains aspects preférés mais non limitatifs de ce projecteur sont définis dans les revendications dépendantes. Some preferred but non-limiting aspects of this projector are defined in the claims dependent.

D'autres aspects, buts et avantages de la présente invention apparaítront mieux à la lecture de la description détaillée suivante de formes de réalisation préférées de celle-ci, donnée à titre d'exemple non limitatif et faite en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue schématique en coupe axiale d'un projecteur du genre elliptique de la technique antérieure,
  • la figure 2 est une vue schématique en coupe axiale d'un projecteur du genre elliptique selon l'invention,
  • la figure 3 est une vue en perspective éclatée d'un projecteur selon une première forme de réalisation concrète de l'invention,
  • la figure 4 est une vue en coupe horizontale axiale du projecteur de la figure 3, assemblé,
  • la figure 5 est une vue en coupe horizontale axiale d'un détail de la figure 4,
  • la figure 6 est une vue en coupe verticale axiale du projecteur des figures 3 à 5, assemblé,
  • la figure 7 est une vue en élévation de côté du projecteur des figures 3 à 6, assemblé,
  • la figure 8 est une vue de face du projecteur des figures 3 à 7, assemblé,
  • la figure 9 est une vue en perspective éclatée d'un projecteur selon une deuxième forme de réalisation concrète de l'invention,
  • la figure 10 est une vue de dessus en plan du projecteur de la figure 9, assemblé,
  • la figure 11 est une vue en coupe horizontale axiale du projecteur des figures 9 et 10, assemblé,
  • la figure 12 est une vue de côté en élévation d'une partie du projecteur des figures 9 et 10,
  • la figure 13 est une vue de côté en élévation d'une partie d'un projecteur selon une troisième forme de réalisation de l'invention, et
  • la figure 14 est une vue de face du projecteur de la figure 13.
    • Other aspects, aims and advantages of the present invention will appear better on reading the following detailed description of preferred embodiments thereof, given by way of non-limiting example and made with reference to the accompanying drawings, in which :
  • FIG. 1 is a schematic view in axial section of a projector of the elliptical type of the prior art,
  • FIG. 2 is a schematic view in axial section of a projector of the elliptical type according to the invention,
  • FIG. 3 is an exploded perspective view of a projector according to a first concrete embodiment of the invention,
  • FIG. 4 is a view in axial horizontal section of the headlight of FIG. 3, assembled,
  • FIG. 5 is a view in axial horizontal section of a detail in FIG. 4,
  • FIG. 6 is a view in axial vertical section of the headlight of FIGS. 3 to 5, assembled,
  • FIG. 7 is a side elevation view of the projector of FIGS. 3 to 6, assembled,
  • FIG. 8 is a front view of the projector of FIGS. 3 to 7, assembled,
  • FIG. 9 is an exploded perspective view of a projector according to a second concrete embodiment of the invention,
  • FIG. 10 is a top plan view of the projector of FIG. 9, assembled,
  • FIG. 11 is a view in axial horizontal section of the headlight of FIGS. 9 and 10, assembled,
  • FIG. 12 is a side elevation view of part of the headlight of FIGS. 9 and 10,
  • FIG. 13 is a side elevation view of part of a headlight according to a third embodiment of the invention, and
  • FIG. 14 is a front view of the projector of FIG. 13.

    • En référence tout d'abord à la figure 2, on a représenté schématiquement un projecteur elliptique selon l'invention, qui comprend une lampe La, une lentille Le, et deux pièces 100 et 200 aptes à être assemblées l'une à l'autre perpendiculairement à l'axe optique x-x du projecteur, selon les flèches F2, pour former un porte-lampe, un miroir, une partie intermédiaire porte-occulteur et une bague porte-lentille. Dans le présent exemple, ces deux parties s'aboutent dans un plan horizontal passant par l'axe x-x, ceci n'étant toutefois nullement limitatif.Referring first to Figure 2, we have schematically represented an elliptical projector according to the invention, which comprises a lamp La, a lens Le, and two parts 100 and 200 suitable for being assembled one to the other perpendicular to the optical axis x-x of the projector, according to arrows F2, to form a lamp holder, a mirror, an intermediate concealer part and a lens holder ring. In this example, these two parts end up in a horizontal plane passing through the x-x axis, this however not being in any way limiting.

    La pièce supérieure 100 comporte une zone PL' formant demi porte-lampe supérieur, une zone M' formant demi-miroir supérieur, une zone PI' formant demi-partie intermédiaire supérieure, et une zone B' formant demi-bague supérieure.The upper part 100 has a zone PL 'forming upper half lamp holder, an area M 'forming a half mirror upper, a zone PI 'forming an intermediate half-part upper, and a zone B 'forming upper half-ring.

    De même, la pièce inférieure comporte une zone PL" formant demi porte-lampe inférieur, une zone M" formant demi-miroir inférieur, une zone PI" formant demi-partie intermédiaire inférieure, et une zone B" formant demi-bague inférieure. En outre, la partie PI" porte, en saillie vers le haut et d'un seul tenant, un occulteur ou écran E se plaçant sensiblement dans le plan focal de la lentille Le.Likewise, the lower part includes a PL zone " forming a lower half lamp holder, an area M "forming lower half mirror, a PI "area forming a half part lower intermediate, and a zone B "forming a half-ring lower. In addition, the PI "part, projecting towards the top and in one piece, a screen or screen E is placing substantially in the focal plane of the lens Le.

    Le projecteur selon la figure 2 comporte également un ressort R pour le maintien de la lampe La sur le porte-lampe.The projector according to Figure 2 also includes a spring R to hold the lamp La on the lamp holder.

    Ainsi l'assemblage des deux pièces 100, 200 selon les flèches F2 forme les éléments correspondants précités, la lentille Le étant emprisonnée entre les deux demi-bagues B' et B" après avoir été positionnée, préalablement à l'assemblage, au droit des demi-bagues.Thus the assembly of the two parts 100, 200 according to the arrows F2 form the aforementioned corresponding elements, the lens Le being trapped between the two half-rings B ' and B "after being positioned, before assembly, in line with the half-rings.

    On comprend donc que le montage du projecteur est sensiblement facilité et simplifié.We therefore understand that the mounting of the projector is significantly easier and simplified.

    Les pièces 100 et 200 peuvent être réalisées, chacune d'un seul tenant, en tout matériau approprié, de préférence par moulage. Ainsi l'on peut réaliser des pièces en alliage d'aluminium, en alliage de zinc, en résine thermodurcissable ou en résine thermofusible haute température, cette énumération n'étant toutefois aucunement limitative. Ainsi l'on peut réaliser les pièces 100 et 200 par emboutissage de tôle d'acier, de laiton, d'aluminium ou de toute autre matière susceptible d'être emboutie.Parts 100 and 200 can be produced, each in one piece, preferably in any suitable material by molding. So we can make alloy parts aluminum, zinc alloy, resin thermosetting or high melt resin temperature, this enumeration however being in no way limiting. So we can make parts 100 and 200 by stamping sheet steel, brass, aluminum or any other material likely to be stamped.

    La fixation des deux pièces 100, 200 est réalisée par exemple par collage, par vissage ou par clipsage.The fixing of the two parts 100, 200 is carried out by for example by gluing, by screwing or by clipping.

    En référence maintenant aux figures 3 à 8, on va décrire une première forme de réalisation pratique d'un tel projecteur.Referring now to Figures 3 to 8, we will describe a first practical embodiment of such projector.

    Sur ces figures et sur les suivantes, des éléments ou parties identiques ou similaires à celles de la figure 2 sont désignés dans la mesure du possible par les mêmes signes de référence.In these and the following figures, elements or parts identical or similar to those of figure 2 are designated as far as possible by the same reference signs.

    La pièce supérieure 100 comporte, de l'arrière vers l'avant, le demi-porte-lampe supérieur PL', le demi-miroir supérieur M' bordé latéralement par deux ailes d'assemblage 101, 102, et la demi-partie intermédiaire supérieure PI' constituée d'une paroi supérieure 130 généralement plane et horizontale bordée latéralement par deux évidements verticaux sur une partie postérieure de sa profondeur. A l'avant de ces évidements latéraux, la demi-partie PI' comporte deux pieds s'étendant vers le bas jusqu'au plan de raccordement avec la pièce inférieure 200. Dans ces deux pieds sont formées deux lumières verticales 105, 106 se terminant à leur extrémité inférieure par un bord droit (seul le bord 108 étant visible) situé à proximité du plan de raccordement, à des fins expliquées plus loin.The upper part 100 comprises, from the rear towards the front, the upper half lamp holder PL ', the half mirror upper M 'laterally bordered by two assembly wings 101, 102, and the upper intermediate half-part PI ' consisting of a generally planar upper wall 130 and horizontal bordered laterally by two recesses vertical on a posterior part of its depth. AT the front of these lateral recesses, the half-part PI ' has two feet extending down to the plane of connection with the lower part 200. In these two feet are formed two vertical lights 105, 106 se ending at their lower end with a straight edge (only edge 108 being visible) located near the plane connection, for purposes explained below.

    La demi-partie intermédiaire PI' se termine à l'avant par une paroi frontale dans laquelle est pratiquée une ouverture semi-circulaire entourée par un bourrelet 110 saillant vers l'avant, dans lequel sont formées, en coopération avec ladite paroi frontale, deux gorges latérales 111, 112 destinées à coopérer avec une nervure périphérique de calage de la lentille Le. Le bourrelet 110 forme la demi-bague supérieure B' de maintien de la lentille.The intermediate half PI 'ends at the front by a front wall in which a semicircular opening surrounded by a bead 110 projecting forward, in which are formed, in cooperation with said front wall, two grooves side 111, 112 intended to cooperate with a rib lens timing device Le. The bead 110 forms the upper half-ring B 'for maintaining the lens.

    En outre, à la transition entre la partie formant demi-miroir M' et la partie intermédiaire PI', deux ailes 113, 114 font saillie vers les côtés dans des plans perpendiculaires à l'axe optique x-x.In addition, at the transition from the forming part half mirror M 'and the intermediate part PI', two wings 113, 114 project to the sides in planes perpendicular to the optical axis x-x.

    La pièce inférieure comporte, de l'arrière vers l'avant, le demi-porte-lampe inférieur PL", le demi-miroir inférieur M" bordé latéralement par deux ailes d'assemblage 201, 202 destinées à être appliquées contre les ailes 101, 102 de la pièce 100, et la demi-partie intermédiaire inférieure PI" constituée d'une paroi inférieure 230 généralement plane et horizontale bordée latéralement par deux évidements verticaux sur une partie postérieure de sa profondeur. A l'avant de ces évidements latéraux, la demi-partie PI" comporte deux montants s'étendant vers le haut jusqu'au plan de raccordement avec la pièce supérieure 100. Dans ces deux montants sont formées deux lumières verticales 205, 206 se terminant à leur extrémité inférieure par un bord droit (seul le bord 208 étant visible) situé à proximité du plan de raccordement, à des fins expliquées plus loin.The lower part has, from the rear to front, PL "lower half lamp holder, half mirror lower M "laterally bordered by two assembly wings 201, 202 intended to be applied against the wings 101, 102 of part 100, and the intermediate half-part lower PI "consisting of a lower wall 230 generally flat and horizontal bordered laterally by two vertical recesses on a rear part of its depth. At the front of these lateral recesses, the half-part PI "has two uprights extending upwards up to the connection plane with the upper part 100. In these two uprights two lights are formed vertical 205, 206 ending at their end lower by a straight edge (only edge 208 being visible) located near the connection plane, at purposes explained below.

    par ailleurs, à partir de la paroi inférieure 230 s'étend vers le haut un occulteur E dont le bord supérieur est en l'espèce horizontal.moreover, from the bottom wall 230 extends upwards a concealer E whose upper edge is horizontal in this case.

    La demi-partie intermédiaire PI" se termine à l'avant par une paroi frontale dans laquelle est pratiquée une ouverture semi-circulaire entourée par un bourrelet 210 saillant vers l'avant, dans lequel sont formées, en coopération avec ladite paroi frontale, deux gorges latérales 211, 212 destinées à coopérer avec la nervure de calage de la lentille Le. Le bourrelet 210 forme la demi-bague inférieure B" de retenue de la lentille. The intermediate half PI "ends at the front by a front wall in which a semicircular opening surrounded by a bead 210 projecting forward, in which are formed, in cooperation with said front wall, two grooves side 211, 212 intended to cooperate with the rib of lens setting Le. The bead 210 forms the half-ring lower B "lens retainer.

    En outre, à la transition entre la partie formant demi-miroir M" et la partie intermédiaire PI", deux ailes 213, 214 font saillie vers les côtés dans des plans perpendiculaires à l'axe optique x-x et sont destinées à se situer dans le prolongement vertical des ailes 113, 114 de la pièce 100.In addition, at the transition from the forming part half mirror M "and the intermediate part PI", two wings 213, 214 project to the sides in planes perpendicular to the optical axis x-x and are intended to be locate in the vertical extension of the wings 113, 114 of piece 100.

    Les deux pièces 100, 200 sont assemblées l'une contre l'autre, en emprisonnant la lentille Le, et maintenues assemblées à l'aide d'un ensemble d'agrafes métalliques A.The two parts 100, 200 are assembled one against the other, by trapping the Le lens, and held assembled using a set of metal staples A.

    Il est prévu en l'espèce quatre agrafes, dont deux agrafes arrière coopèrent avec des aménagements prévus au niveau des ailes superposées 101, 201 et 102, 202, les aménagements prévus sur les ailes 102, 202 étant indiqués en 104, 204.Four staples are provided in this case, two of which are rear staples cooperate with arrangements provided for in level of the superimposed wings 101, 201 and 102, 202, the arrangements provided on the wings 102, 202 being indicated in 104, 204.

    En outre, deux agrafes antérieures coopèrent avec les bords droits adjacents des lumières 105, 205 et 106, 206, deux de ces bords étant désignés par 108, 208.In addition, two previous staples cooperate with the adjacent straight edges of lights 105, 205 and 106, 206, two of these edges being designated by 108, 208.

    Pour assurer un alignement satisfaisant des pièces 100, 200 lors de l'assemblage, on peut prévoir en particulier sur les ailes 101, 201, 102, 202 et sur les extrémités supérieures des pieds et des montants, des pions de centrage s'engageant dans des trous. L'un de ces pions est indiqué en P, et les trous sont indiqués en T.To ensure satisfactory alignment of parts 100, 200 during assembly, one can provide in particular on the wings 101, 201, 102, 202 and on the upper ends of feet and uprights, pawns of centering engaging in holes. One of these pawns is indicated at P, and the holes are indicated at T.

    La figure 5 montre en détail la structure du porte-lampe pour sa moitié PL', avec le ressort de maintien de la lampe interposé entre une collerette sortante 215 dudit porte-lampe, prévue à l'extrémité libre d'une partie axiale 217, et une plaque annulaire 300.Figure 5 shows in detail the structure of the lamp holder for its half PL ', with the retaining spring of the lamp interposed between an outgoing flange 215 of said lamp holder, provided at the free end of an axial part 217, and an annular plate 300.

    Comme on l'observe en particulier sur la figure 7, les évidements latéraux des deux demi-parties intermédiaires PI' et PI" définissent conjointement deux larges ouvertures latérales O1 et 02 d'évacuation de chaleur.As seen in particular in Figure 7, the lateral recesses of the two intermediate half-parts PI 'and PI "jointly define two large openings lateral O1 and 02 heat evacuation.

    Les lumières 105, 205 et 106, 206 participent également à l'évacuation de chaleur.Lights 105, 205 and 106, 206 participate also heat dissipation.

    On notera également que les ailes alignées 113, 213 et 114, 214 peuvent être utilisées comme brides pour le montage du projecteur sur la carrosserie du véhicule.It will also be noted that the aligned wings 113, 213 and 114, 214 can be used as flanges for the mounting the projector on the vehicle body.

    Maintenant en référence aux figures 9 à 12, on a représenté une seconde forme de réalisation du projecteur, qui cette fois-ci est composé de deux pièces 300, 400 qui s'assemblent dans une direction perpendiculaire à l'axe optique, mais horizontale, avec un plan de raccordement vertical.Now with reference to FIGS. 9 to 12, we have represented a second embodiment of the projector, which this time is composed of two parts 300, 400 which assemble in a direction perpendicular to the axis optical, but horizontal, with a connection plane vertical.

    Dans cette réalisation, la pièce de gauche 300 (en regardant le projecteur de face) comporte une partie PL' formant demi-porte-lampe gauche, une partie M' formant demi-miroir de gauche, une demi-partie intermédiaire PI' et une demi-bague B'.In this realization, the left piece 300 (in looking at the projector from the front) has a part PL ' forming a left half-lamp holder, a part M 'forming left half mirror, half intermediate part PI 'and half a ring B '.

    On observe que le miroir de type elliptique présente une étendue plus grande que dans la forme de réalisation précédente, en se refermant progressivement jusqu'à la partie intermédiaire.We observe that the elliptical type mirror has greater extent than in the embodiment previous, gradually closing until the intermediate part.

    La pièce 300 comporte une aile latérale 301 s'étendant dans un plan vertical sur toute la hauteur de la pièce, sensiblement dans la région médiane du miroir. Elle comporte également une aile 302 s'étendant dans un plan vertical passant au voisinage de l'axe optique, sur l'essentiel de la profondeur du projecteur, au-dessus et au-dessous de la pièce. L'aile 302 comporte une série de pions de centrage P.The part 300 comprises a lateral wing 301 extending in a vertical plane over the entire height of the room, substantially in the middle region of the mirror. She also includes a wing 302 extending in a plane vertical passing in the vicinity of the optical axis, on most of the depth of the projector, above and below the room. Wing 302 has a series of centering pins P.

    La partie intermédiaire PI' se compose d'une zone élargie 304, de section rectangulaire à coins arrondis, dans laquelle est formée une lumière latérale 306 d'aération. Cette partie intermédiaire PI' est fermée à l'arrière par une paroi transversale dans laquelle est formée une demi-ouverture 310, de forme générale demi-elliptique, pour le passage de la lumière. Elle est fermée à l'avant par une paroi transversale dans laquelle est formée une demi-ouverture circulaire pour recevoir la lentille Le, cette ouverture étant bordée par un bourrelet 307 dans lequel est formée une gorge 308 pour la réception d'une nervure périphérique de maintien appartenant à la lentille Le. On définit ainsi une demi-bague B' de montage de la lentille.The intermediate part PI 'consists of a zone enlarged 304, of rectangular section with rounded corners, in which a side light 306 is formed ventilation. This intermediate part PI 'is closed at the rear by a transverse wall in which is formed a half-opening 310, generally semi-elliptical, for the passage of light. It's closed at the front by a transverse wall in which is formed a circular half-opening to receive the Le lens, this opening being bordered by a bead 307 in which a groove 308 is formed for reception a peripheral retaining rib belonging to the Le lens. A mounting half-ring B 'is thus defined of the lens.

    Par ailleurs, le long des bords supérieur et inférieur de l'aile 302 sont formés des aménagements postérieurs 303 et antérieurs 305 destinés à coopérer avec des agrafes d'assemblage A.By the way, along the top and bottom edges wing 302 are formed from rear fittings 303 and earlier 305 intended to cooperate with staples assembly A.

    La pièce 300 comporte en outre, s'étendant à environ 45° vers le haut et vers l'arrière à partir de la base de la demi-ouverture, une première partie d'occulteur ou écran oblique E' qui comporte dans sa partie haute, en saillie en direction de la pièce 400 à partir du plan vertical de raccordement des deux pièces 300 et 400, un prolongement 312.The part 300 further comprises, extending to approximately 45 ° upwards and backwards from the base of the half-opening, the first part of the screen or screen oblique E 'which has in its upper part, projecting in direction of room 400 from the vertical plane of connection of the two parts 300 and 400, an extension 312.

    La pièce 400 est réalisée essentiellement symétriquement de la pièce 300 et comporte une aile latérale 401 s'étendant dans le même plan vertical que l'aile 301, également sur toute la hauteur du projecteur. Elle comporte également une aile 402 destinée à s'accoler à l'aile 302 sur toute son étendue. L'aile 402 comporte une série de trous T destinés à recevoir les pions de centrage P lors de l'assemblage.The part 400 is essentially produced symmetrically from part 300 and has a wing lateral 401 extending in the same vertical plane as wing 301, also over the entire height of the projector. It also includes a wing 402 intended to be attached to wing 302 over its entire extent. Wing 402 has a series of holes T intended to receive the centering pins P during assembly.

    La demi-partie intermédiaire PI" est symétrique de la demi-partie intermédiaire PI", avec une lumière latérale 406 d'aération. Elle est également fermée à l'arrière par une paroi transversale dans laquelle est formée une demi-ouverture 410 qui, avec la demi-ouverture 310, définit une ouverture généralement elliptique pour le passage de la lumière du second foyer du miroir vers la lentille Le. La demi-partie intermédiaire PI" est fermée à l'avant par une paroi transversale dans laquelle est formée une demi-ouverture circulaire bordée par un bourrelet 407 dans lequel est formée une gorge 408 pour la réception d'une nervure périphérique de maintien appartenant à la lentille Le. On définit ainsi une demi-bague B" de montage de la lentille.The intermediate half-part PI "is symmetrical with the intermediate half PI ", with a side light 406 ventilation. It is also closed at the back by a transverse wall in which a half-opening is formed 410 which, with the half-opening 310, defines a generally elliptical opening for the passage of the light from the second focal point of the mirror towards the lens Le. The PI "intermediate half-part is closed at the front by a transverse wall in which a half-opening is formed circular bordered by a bead 407 in which is formed a groove 408 for receiving a peripheral retaining rib belonging to the lens The. This defines a half-ring B "for mounting the lens.

    Par ailleurs, le long des bords supérieur et inférieur de l'aile 402 sont formés des aménagements postérieurs 403 et antérieurs 405 destinés à coopérer avec les aménagements homologues 303, 305 de la pièce 300 pour le clipsage des agrafes d'assemblage A.By the way, along the top and bottom edges wing 402 are formed from rear fittings 403 and earlier 405 intended to cooperate with the arrangements counterparts 303, 305 of part 300 for the clipping of assembly clips A.

    La pièce 300 comporte en outre, s'étendant à environ 45° vers le haut et vers l'arrière à partir de la base de la demi-ouverture 410, une deuxième partie d'occulteur ou écran oblique E" qui comporte un évidement destiné à recevoir le prolongement 312 du demi-écran E'.The part 300 further comprises, extending to approximately 45 ° upwards and backwards from the base of the half-opening 410, a second concealer part or oblique screen E "which has a recess intended for receive the extension 312 of the half screen E '.

    On observera ici que, grâce à cette constitution de l'écran, on assure que le bord supérieur de celui-ci, défini pratiquement entièrement par la seule pièce 300 du fait de la présence du prolongement 312, est parfaitement continu et régulier, au profit de la qualité de coupure du faisceau engendré.We will observe here that, thanks to this constitution of the screen, we ensure that the upper edge of it, defined almost entirely by the single part 300 of the made of the extension 312, is perfectly continuous and regular, to the benefit of the cut quality of the beam generated.

    Les figures 13 et 14 illustrent un troisième mode de réalisation de l'invention, qui diffère de celui des figures 9 à 12 essentiellement par une disposition différente de la lampe La.Figures 13 and 14 illustrate a third mode of realization of the invention, which differs from that of Figures 9 to 12 essentially by an arrangement different from the La lamp.

    Celle-ci s'étend en effet avec un axe vertical, avec un porte-lampe défini par deux demi-porte-lampes PL' et PL" formés à la base des demi-miroirs M'+M" à l'aplomb du premier foyer.This indeed extends with a vertical axis, with a lamp holder defined by two half-lamp holders PL 'and PL " formed at the base of the half-mirrors M '+ M "directly above the first home.

    Grâce à un tel positionnement de la lampe, le rendement lumineux peut être accru dans la mesure où l'angle solide, vu de la source, de la partie de miroir occupée par le porte-lampe peut être réduite.Thanks to such positioning of the lamp, the light output can be increased to the extent that the solid angle, seen from the source, from the mirror part occupied by the lamp holder can be reduced.

    Bien entendu, la présente invention n'est nullement limitée aux formes de réalisation décrites et représentées, mais l'homme de l'art saura y apporter toute variante ou modification conforme à son esprit, pour autant que l'invention demeure telle que définie par les revendications.Of course, the present invention is by no means limited to the embodiments described and shown, but the person skilled in the art will be able to bring there any variant or modification in accordance with its spirit, provided that the invention remains as defined by the claims.

    Claims (13)

    1. A headlight for a motor vehicle, comprising a lamp (La), a reflector (M) of the elliptical type having a first focus in the vicinity of which the source is situated, and a second focus, together with a convergent lens (Le), focused in the vicinity of the said second focus, a sleeve (B) for mounting the lens and fixed with respect to the reflector, and a lampholder situated in the vicinity of one wall of the reflector for mounting the lamp (La), the reflector and the mounting sleeve being made in two parts (100, 200; 300, 400) which are assembled together in a direction generally at right angles to the optical axis, each piece defining a respective portion (M', M") of the reflector and a respective portion (B', B") of the sleeve, characterised in that the two parts also define two respective portions (PL', PL") of the lampholder.
    2. A headlight according to Claim 1, characterised in that each part (100, 200; 300, 400) comprises, between its respective reflector portion (M', M") and its respective sleeve portion (B', B"), a respective intermediate portion (PI', PI"), at least one of the said respective intermediate portions carrying an occulter (E; E', E").
    3. A headlight according to Claim 2, characterised in that, in each respective intermediate portion (PI', PI"), there are formed ventilation holes (01, 02, 105, 106, 205, 206; 306, 406), extending laterally.
    4. A headlight according to Claim 3, characterised in that each intermediate portion (PI', PI") is widened and has generally vertical flanks in which the said ventilation holes are formed.
    5. A headlight according to one of Claims 1 to 4, characterised in that each part (100, 200; 300, 400) includes integral means for mounting the headlight in the vehicle.
    6. A headlight according to Claim 5, characterised in that the said means consist of generally vertical lateral ears (113, 114, 213, 214; 301, 401).
    7. A headlight according to one of Claims 1 to 6, characterised in that the reflector (M) closes in towards the lens, and in that at least one of the parts (300, 400) defines an occulter (E', E") inclined obliquely upwards and backwards from a respective intermediate portion (PI', PI").
    8. A headlight according to Claim 7, characterised in that the said inclined occulter (E', E") extends from the base of a window aperture (310, 410) formed, for passage of light through it, by the combination of two posterior transverse walls of the said intermediate portions (PI', PI").
    9. A headlight according to one of Claims 1 to 8, characterised in that each part (100, 200; 300, 400) includes, over its axial length, generally flat assembly fins (101, 102, 201, 202; 302, 402) defining a junction plane of the parts.
    10. A headlight according to Claim 9, characterised in that the assembly fins (101, 102, 201, 202; 302, 402) include means (P, T) for centring them in facing relationship.
    11. A headlight according to one of Claims 1 to 10, characterised in that the two parts (300, 400) are joined together in a generally vertical plane in the vicinity of the optical axis (x-x) of the headlight.
    12. A headlight according to Claim 11, characterised in that the lamp (La) is oriented vertically in the reflector (M).
    13. A headlight according to Claim 2 taken in combination with Claim 11 or Claim 12, characterised in that the said occulter is defined by two occulter portions (E', E") formed respectively on the two parts (300, 400), and in that one occulter portion (E') has a lateral extension portion (312) beyond the junction plane, in at least its upper part.
    EP96401350A 1995-06-22 1996-06-20 Improved motor vehicle headlamp of the elliptical type Expired - Lifetime EP0750157B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9507488A FR2735849B1 (en) 1995-06-22 1995-06-22 ELLIPTICAL PROJECTOR WITH IMPROVED CONSTRUCTION FOR A MOTOR VEHICLE
    FR9507488 1995-06-22

    Publications (3)

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    EP0750157A2 EP0750157A2 (en) 1996-12-27
    EP0750157A3 EP0750157A3 (en) 1997-05-28
    EP0750157B1 true EP0750157B1 (en) 2002-12-18

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    DE (1) DE69625409T2 (en)
    ES (1) ES2188732T3 (en)
    FR (1) FR2735849B1 (en)

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    FR2767183B1 (en) * 1997-08-05 1999-10-22 Holophane OPTICAL SYSTEM FOR MOUNTING IN A VEHICLE HEADLIGHT CASE
    DE19838911B4 (en) * 1998-08-27 2010-07-01 Automotive Lighting Reutlingen Gmbh Lighting device of a vehicle
    FR2822928B1 (en) 2001-03-29 2003-05-16 Valeo Vision ELLIPTICAL PROJECTOR FOR A MOTOR VEHICLE, CAPABLE OF GENERATING MULTIPLE LIGHT BEAMS
    DE10140943A1 (en) 2001-08-21 2003-03-06 Hella Kg Hueck & Co vehicle headlights
    US7201507B2 (en) * 2003-12-25 2007-04-10 Ichikoh Industries, Ltd. Projector type vehicle light
    JP4405279B2 (en) * 2004-02-17 2010-01-27 市光工業株式会社 Projector type vehicle lamp
    JP4343003B2 (en) * 2004-03-31 2009-10-14 株式会社小糸製作所 Vehicle headlamp
    JP4661804B2 (en) 2007-03-08 2011-03-30 市光工業株式会社 Projector type lamp
    WO2010025464A1 (en) * 2008-08-29 2010-03-04 Illume Llc Vehicle projector lamp
    DE102021109444A1 (en) 2021-04-15 2022-10-20 HELLA GmbH & Co. KGaA Split lens holder for a lighting device

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    WO2022129392A1 (en) * 2020-12-17 2022-06-23 Valeo Vision Automotive luminous module and method for manufacturing an automotive luminous module

    Also Published As

    Publication number Publication date
    EP0750157A2 (en) 1996-12-27
    DE69625409D1 (en) 2003-01-30
    FR2735849A1 (en) 1996-12-27
    EP0750157A3 (en) 1997-05-28
    ES2188732T3 (en) 2003-07-01
    DE69625409T2 (en) 2003-10-30
    FR2735849B1 (en) 1997-08-22

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