EP0645578B1 - Projector with smooth cover lens, particularly for vehicles, and manufacturing process for the reflector of same - Google Patents
Projector with smooth cover lens, particularly for vehicles, and manufacturing process for the reflector of same Download PDFInfo
- Publication number
- EP0645578B1 EP0645578B1 EP94402109A EP94402109A EP0645578B1 EP 0645578 B1 EP0645578 B1 EP 0645578B1 EP 94402109 A EP94402109 A EP 94402109A EP 94402109 A EP94402109 A EP 94402109A EP 0645578 B1 EP0645578 B1 EP 0645578B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- horizontal
- zones
- offset
- base surface
- 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
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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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
- F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
Definitions
- the invention relates to a projector, in particular a headlamp for motor vehicle.
- a projector of the type comprising a light source such as a filament lamp generally without cup, a reflector having a surface chosen to form, in an axial direction and horizontal illumination, images of the source according to a determined distribution, and a closing window.
- a light source such as a filament lamp generally without cup
- a reflector having a surface chosen to form, in an axial direction and horizontal illumination, images of the source according to a determined distribution, and a closing window.
- it can be a defined surface analytically so as to form images of the source all points of which are located below a cut predetermined.
- FR-A-2 536 502 and FR-A-2 536 503 describe projectors of this type, which respectively define a passing beam and a fog beam essentially by the particular conformation of the reflector surface.
- This type of projector avoids the use not only of a blackout cup or screen, but also to a strongly deviating ice and thus provides good uniformity of spreading of the beam, in particular in direction vertical.
- a disadvantage of this known projector is in that the discontinuities between adjacent streaks of the reflector, and more particularly between two streaks located one above the other, will generate in the overall beam obtained from photometric defects, and especially rising light rays, susceptible dazzle drivers of oncoming vehicles reverse.
- One solution to this problem could be to provide streaks extending over the entire height of the reflective and having a constant profile.
- the design flexibility in this case would be very significantly reduced, and it would become very difficult to form, without using ice, a beam having a satisfactory photometry.
- the present invention aims to overcome this drawback and to propose a projector which, while presenting a lens smooth glass or glass with non-functional ridges, that is to say purely decorative and without optical role, and a reflector provided with reliefs capable of distributing judiciously light, does not include at the level of said reflector substantially no horizontal draft likely to create anomalies in the beam, while offering those skilled in the art great flexibility design of this reflector and therefore of the photometry of the beam emitted.
- the invention provides a projector as defined in claim 1.
- the invention also relates to a manufacturing method a reflector as defined in claim 3.
- Figure 1 is a schematic sectional view of a projector according to the invention.
- Figure 2 shows how the streak areas are distributed over the surface of the reflector according to a flat definition of the network of deviating zones.
- Figure 3 is a front view of the plan area network deviators of figure 2.
- FIG. 4 is a partial view, in horizontal section, of the surface of the reflector of FIGS. 1 and 2, in a first embodiment.
- Figure 5 is equivalent to Figure 4, for a variant embodiment of the invention.
- Figure 6 is equivalent to Figure 3, for a second embodiment.
- a headlamp for a motor vehicle comprising a source luminous 10, in this case a filament lamp, a reflector or mirror 20 of the aforementioned type with defined surface analytically, possibly truncated by two half-planes 21 and 22, and a closing window 30.
- the light source 10 does not have any shading cup or screen, the cut-off being defined solely by the shape of the reflector 20.
- the assembly produces a light beam towards the front of the vehicle, in a direction of illumination ⁇ axial and horizontal.
- the filament can be replaced by the bow of a discharge lamp.
- the ice cream closure 30 is essentially smooth or simply provided with decorative streaks, without optical role, homogenization and the spread of the beam in the horizontal direction being made only by the reflector 20.
- each of the zones 41 on the surface 23 of reflector 20 thereby defining thereon a homologous zone 24 of curvilinear contour (zones 41 have a polygonal contour), and we form at the location of each zone 24 of the reflector a substitution surface forming a streak, this substitution surface 24 being defined with respect to the projection surface (analytically defined surface) 23 by a differential deviation ⁇ , in a horizontal plane, corresponding to the profile that the homologous streak would have if it had been formed on a closing glass.
- the discontinuities resulting from horizontal transition zones are shown on the illumination diagram by lines horizontal glare generating, which are also amplified when it is necessary to coat the mirror with a protective varnish, because the latter tends to deposit irregularly and to focus more or less unpredictable around discontinuities.
- the use of progressive streaks in particular makes it possible to overcome this difficulty.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
L'invention concerne un projecteur, notamment un projecteur pour véhicule automobile.The invention relates to a projector, in particular a headlamp for motor vehicle.
Elle concerne notamment un projecteur du type comportant une source lumineuse telle qu'une lampe à filament généralement dépourvue de coupelle, un réflecteur possédant une surface choisie pour former, dans une direction axiale et horizontale d'éclairement, des images de la source selon une répartition déterminée, et une glace de fermeture. Selon un exemple non limitatif, il peut s'agir d'une surface définie analytiquement de manière à former des images de la source dont tous les points sont situés au-dessous d'une coupure prédéterminée.It relates in particular to a projector of the type comprising a light source such as a filament lamp generally without cup, a reflector having a surface chosen to form, in an axial direction and horizontal illumination, images of the source according to a determined distribution, and a closing window. According to a nonlimiting example, it can be a defined surface analytically so as to form images of the source all points of which are located below a cut predetermined.
Les documents FR-A-2 536 502 et FR-A-2 536 503 décrivent des projecteurs de ce type, qui définissent, respectivement, un faisceau de croisement et un faisceau antibrouillard essentiellement par la conformation particulière de la surface du réflecteur.Documents FR-A-2 536 502 and FR-A-2 536 503 describe projectors of this type, which respectively define a passing beam and a fog beam essentially by the particular conformation of the reflector surface.
Ce type de projecteur évite le recours non seulement à une coupelle ou écran d'occultation, mais également à une glace fortement déviatrice et procure ainsi une bonne uniformité d'étalement du faisceau, notamment en direction verticale.This type of projector avoids the use not only of a blackout cup or screen, but also to a strongly deviating ice and thus provides good uniformity of spreading of the beam, in particular in direction vertical.
Ces projecteurs, de même que des projecteurs conventionnels, ont cependant jusqu'à présent nécessité l'emploi d'une glace de fermeture pourvue de zones déflectrices (telles que des stries ou demi-stries), notamment pour étaler et homogénéiser le faisceau en direction horizontale.These projectors, as well as projectors have so far required the use of a closing glass provided with zones deflectors (such as streaks or half-streaks), especially to spread and homogenize the beam in horizontal direction.
Dans ce cas, lorsque la glace est fortement inclinée - ce qui peut être souhaitable pour des raisons de style - il devient difficile de réaliser ces zones déviatrices, dont l'efficacité se dégrade au fur et à mesure que l'on doit incliner la glace de fermeture.In this case, when the glass is strongly tilted - this which may be desirable for style reasons - it becomes difficult to achieve these deviating zones, of which efficiency degrades as we need to tilt the closing glass.
On connaít certes, en particulier par US-A-1 732 884 un projecteur qui permet de recourir à une glace lisse, en comportant sur la surface du réflecteur des stries ou analogues permettant d'assurer l'étalement requis de la lumière. Ce projecteur est tel que défini dans le préambule de la revendication 1.We certainly know, in particular by US-A-1 732 884 a headlamp which allows the use of smooth glass, with streaks on the surface of the reflector, or analogs to ensure the required spreading of the light. This projector is as defined in the preamble of claim 1.
Toutefois, un inconvénient de ce projecteur connu réside en ce que les discontinuités entre des stries adjacentes du réflecteur, et plus particulièrement entre deux stries situées l'une au-dessus de l'autre, vont engendrer dans le faisceau globalement obtenu des défauts photométriques, et notamment des rayons lumineux montants, susceptibles d'éblouir les conducteurs des véhicules roulant en sens inverse. Une solution à ce problème pourrait consister à prévoir des stries s'étendant sur toute la hauteur du réflecteur et présentant un profil constant. Toutefois, la flexibilité de conception serait dans ce cas très sensiblement réduite, et il deviendrait très difficile de former, sans recourir à la glace, un faisceau présentant une photométrie satisfaisante. However, a disadvantage of this known projector is in that the discontinuities between adjacent streaks of the reflector, and more particularly between two streaks located one above the other, will generate in the overall beam obtained from photometric defects, and especially rising light rays, susceptible dazzle drivers of oncoming vehicles reverse. One solution to this problem could be to provide streaks extending over the entire height of the reflective and having a constant profile. However, the design flexibility in this case would be very significantly reduced, and it would become very difficult to form, without using ice, a beam having a satisfactory photometry.
La présente invention vise à pallier cet inconvénient et à proposer un projecteur qui, tout en présentant une glace une glace lisse ou munie de stries non fonctionnelles, c'est-à-dire purement décorative et sans rôle optique, et un réflecteur pourvu de reliefs capables de répartir judicieusement la lumière, ne comporte au niveau dudit réflecteur sensiblement aucune dépouille horizontale susceptible de créer des anomalies dans le faisceau, tout en offrant à l'homme du métier une grande souplesse de conception de ce réflecteur et donc de la photométrie du faisceau émis.The present invention aims to overcome this drawback and to propose a projector which, while presenting a lens smooth glass or glass with non-functional ridges, that is to say purely decorative and without optical role, and a reflector provided with reliefs capable of distributing judiciously light, does not include at the level of said reflector substantially no horizontal draft likely to create anomalies in the beam, while offering those skilled in the art great flexibility design of this reflector and therefore of the photometry of the beam emitted.
Essentiellement, pour atteindre ce but, l'invention propose un projecteur tel que défini dans la revendication 1.Essentially, to achieve this goal, the invention provides a projector as defined in claim 1.
L'invention concerne également un procédé de fabrication d'un réflecteur tel que défini dans la revendication 3.The invention also relates to a manufacturing method a reflector as defined in claim 3.
Des aspects préférés du projecteur et de son procédé de fabrication sont définis dans les sous-revendications 2 et 4. Preferred aspects of the projector and its method of manufacturing are defined in subclaims 2 and 4.
D'autres caractéristiques et avantages de l'invention apparaitront à la lecture de la description détaillée ci-dessous, faite en référence aux dessins annexés.Other characteristics and advantages of the invention will appear on reading the detailed description below, made with reference to the accompanying drawings.
La figure 1 est une vue schématique en coupe d'un projecteur selon l'invention.Figure 1 is a schematic sectional view of a projector according to the invention.
La figure 2 montre la manière dont les zones de stries sont réparties sur la surface du réflecteur en fonction d'une définition plane du réseau de zones déviatrices.Figure 2 shows how the streak areas are distributed over the surface of the reflector according to a flat definition of the network of deviating zones.
La figure 3 est une vue de face du réseau plan de zones déviatrices de la figure 2.Figure 3 is a front view of the plan area network deviators of figure 2.
La figure 4 est une vue partielle, en coupe horizontale, de la surface du réflecteur des figures 1 et 2, dans une première forme de réalisation.FIG. 4 is a partial view, in horizontal section, of the surface of the reflector of FIGS. 1 and 2, in a first embodiment.
La figure 5 est homologue de la figure 4, pour une variante de réalisation de l'invention.Figure 5 is equivalent to Figure 4, for a variant embodiment of the invention.
La figure 6 est homologue de la figure 3, pour une seconde forme de réalisation.Figure 6 is equivalent to Figure 3, for a second embodiment.
Sur la figure 1, on a représenté très schématiquement un
projecteur pour véhicule automobile, comportant une source
lumineuse 10, en l'espèce une lampe à filament, un réflecteur
ou miroir 20 du type précité à surface définie
analytiquement, éventuellement tronqué par deux demi-plans 21
et 22, et une glace de fermeture 30. La source lumineuse 10
ne comporte aucune coupelle ni écran d'occultation, la
coupure étant définie du seul fait de la forme du réflecteur
20. L'ensemble produit un faisceau lumineux vers l'avant du
véhicule, dans une direction d'éclairement Δ axiale et
horizontale.In Figure 1, there is shown very schematically a
headlamp for a motor vehicle, comprising a source
luminous 10, in this case a filament lamp, a reflector
or
On notera que le filament peut être remplacé par l'arc d'une lampe à décharge.Note that the filament can be replaced by the bow of a discharge lamp.
De façon caractéristique de l'invention, la glace de
fermeture 30 est essentiellement lisse ou simplement munie de
stries décoratives, sans rôle optique, l'homogénéisation et
l'étalement du faisceau en direction horizontale étant
réalisés uniquement par le réflecteur 20.Characteristically of the invention, the
A cet effet, on définit dans un plan 40, perpendiculaire
à la direction d'éclairement Δ, un réseau de zone de stries
en fonction du résultat recherché, d'une manière identique à
ce que l'on aurait défini sur une glace de fermeture
classique, déviatrice, s'étendant perpendiculairement à la
direction d'éclairement Δ.To this end, we define in a
On peut voir sur la figure 3, de face, un réseau de zones déviatrices correspondant à une première forme de réalisation de l'invention, pour un miroir de projecteur gauche. Ces zones déviatrices sont référencées 41 et peuvent être, chacune, attenantes ou non à d'autres zones voisines.We can see in Figure 3, from the front, a network of zones deviators corresponding to a first embodiment of the invention, for a left projector mirror. These deviating zones are referenced 41 and can be, each, whether or not adjoining other neighboring areas.
On projette alors, suivant Δ qui constitue la direction
de projection à cet effet, chacune des zones 41 sur la
surface 23 du réflecteur 20, définissant ainsi sur celui-ci
une zone homologue 24 de contour curviligne (les zones 41 ont
un contour polygonal), et on forme à l'endroit de chaque zone
24 du réflecteur une surface de substitution formant strie,
cette surface de substitution 24 étant définie par rapport à
la surface de projection (surface définie analytiquement) 23
par un écart différentiel δ, dans un plan horizontal,
correspondant au profil qu'aurait la strie homologue si
celle-ci avait été formée sur une glace de fermeture.We then project, according to Δ which constitutes the direction
projection for this purpose, each of the
On peut voir notamment figure 4 le profil de cette strie, dont la forme légèrement bombée présente avec la surface de projection 23 un écart différentiel en direction normale δ de 0,1 à 0,5 mm. Un écart plus important peut toutefois être utilisé si l'on veut donner aux stries un effet prismatique.We can see in particular Figure 4 the profile of this streak, whose slightly curved shape presents with the surface of projection 23 a differential deviation in normal direction δ of 0.1 to 0.5 mm. However, a larger gap can be used if you want to give streaks a prismatic effect.
Sur la figure 4, on a représenté des stries complètes,
c'est-à-dire que les surfaces 24 adjacentes se raccordent
entre elles sans solution de continuité le long de leur arête
commune 25. En variante, on peut prévoir, à la place de ces
stries, des demi-stries, ici encore orientées essentiellement
verticalement, se raccordant les unes aux autres par des
dépouilles 26, comme illustré figure 5, ce qui n'est
aucunement gênant compte tenu de l'orientation
essentiellement verticale de ces demi-stries, les éventuels
défauts dûs aux discontinuités entraínées par les dépouilles
ne se traduisant que par des déviations latérales des rayons
lumineux concernés.In FIG. 4, complete streaks have been shown,
that is to say that the
Dans une seconde forme de réalisation, illustrée en
figure 6 (et correspondant à un projecteur droit), on utilise
des stries dites "évolutives", c'est-à-dire dont le profil
varie continûment lorsqu'on se déplace sur leur longueur, les
différentes zones 41 étant, sur la majeure partie du
réflecteur, des surfaces attenantes se raccordant de façon
continue les unes aux autres en direction horizontale le long
de leur arête commune.In a second embodiment, illustrated in
figure 6 (and corresponding to a right headlamp), we use
so-called "progressive" streaks, that is to say whose profile
varies continuously when moving along their length, the
En effet, dans la première forme de réalisation, les discontinuités résultant des zones de transition horizontale se traduisent sur le diagramme d'éclairement par des lignes horizontales génératrices d'éblouissements, qui sont en outre amplifiées lorsqu'il est nécessaire de revêtir le miroir d'un vernis protecteur, car ce dernier a tendance à se déposer de manière irrégulière et à se concentrer de façon plus ou moins imprévisible autour des discontinuités. L'utilisation de stries évolutives permet notamment de pallier cette difficulté.Indeed, in the first embodiment, the discontinuities resulting from horizontal transition zones are shown on the illumination diagram by lines horizontal glare generating, which are also amplified when it is necessary to coat the mirror with a protective varnish, because the latter tends to deposit irregularly and to focus more or less unpredictable around discontinuities. The use of progressive streaks in particular makes it possible to overcome this difficulty.
Claims (4)
- A headlight, in particular for a motor vehicle, the headlight comprising:a light source (10):a reflector (20) having a base surface (23) that is suitable for forming a determined distribution of images of the source in a lighting direction (Δ) that is axial and horizontal ; the reflector including, over at least a portion of its base surface, an array of zones of polygonal outline in projection onto a plane perpendicular to the axial direction (Δ), in which zones the reflecting surface is offset relative to the base surface so as to obtain a predetermined distribution of light flux; anda closure glass (30) that is essentially free of deflecting stripes so that the configuration of the emitted beam results solely from said predetermined distribution performed by the reflector; said headlight being characterized in that in order to obtain a distribution of light flux that is identical to that which would have been obtained by stripes formed on the closure glass, said offset reflecting surfaces are obtained by projecting a plane array (40) of zones (41) of polygonal outline corresponding to the outline of said stripes in said axial direction onto the base surface. the differential offset (δ) in a horizontal plane between the base surface and the offset surface corresponding to the horizontal profile of a corresponding stripe in the same plane, in that in at least some reflector zones, the offset surfaces are based on stripes whose profile varies continuously going along their length, and in that said offset surfaces over at least a major portion of the reflector (42; 43) are contiguous surfaces that are connected to one another continuously in the horizontal direction along their common edge.
- A headlight according to claim 1, characterized in that the base surface of the reflector is a surface (23) that is analytically defined in such a manner as to form images of the source in which all of the points thereof lie below a predetermined cutoff.
- A method of manufacturing a reflector for a headlight, in particular for a motor vehicle, the reflector (20) being suitable for forming images of the source in a determined distribution. and the projector including a closure glass that is essentially free of deflecting stripes, the method being characterized in that it comprises the following steps:defining a base reflecting surface for the reflector so as to form images of the source in a base distribution in a lighting direction (Δ) that is axial and horizontal;projecting a plane array (40) of volumes (41) of polygonal outline in said axial direction onto at least a portion of the reflecting surface so that the differential offset (δ) in a horizontal plane between the base surface and the offset surface corresponds to the horizontal profile of the volume in the same plane, in that in at least some zones, the horizontal profile of the volume varies continuously between two extreme profiles, and in that two adjacent zones in the vertical direction present extreme profiles that are identical in a horizontal plane of transition between said zones;making a mold for the reflector by machining as a function of data defining the base surface and said volumes; andmolding the reflector using said mold.
- A method according to claim 3, characterized in that the base reflecting surface (23) of the reflector is analytically defined in such a manner as to form images of the source in said axial and horizontal lighting direction (Δ) in which all of the points lie below a predetermined cutoff.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9311403A FR2710393B1 (en) | 1993-09-24 | 1993-09-24 | Smooth glass headlamp, in particular for a motor vehicle, and method for manufacturing the reflector of such a headlamp. |
| FR9311403 | 1993-09-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0645578A2 EP0645578A2 (en) | 1995-03-29 |
| EP0645578A3 EP0645578A3 (en) | 1995-04-26 |
| EP0645578B1 true EP0645578B1 (en) | 1999-03-10 |
Family
ID=9451212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94402109A Expired - Lifetime EP0645578B1 (en) | 1993-09-24 | 1994-09-22 | Projector with smooth cover lens, particularly for vehicles, and manufacturing process for the reflector of same |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5567044A (en) |
| EP (1) | EP0645578B1 (en) |
| JP (1) | JP3579930B2 (en) |
| DE (1) | DE69416922T2 (en) |
| FR (1) | FR2710393B1 (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ287690B6 (en) * | 1996-01-29 | 2001-01-17 | Autopal S. R. O. | Headlight with complex reflector |
| FR2755748B1 (en) * | 1996-11-08 | 1999-01-29 | Valeo Vision | MOTOR VEHICLE PROJECTOR COMPRISING A DISCHARGE LAMP WITH BUSHES AND A MULTI-ZONE REFLECTOR |
| FR2760068B1 (en) * | 1997-02-21 | 1999-05-14 | Valeo Vision | MOTOR VEHICLE PROJECTOR WITH MIRROR WITH SIDE-BY-SIDE ZONES, AND METHOD FOR MANUFACTURING SUCH A MIRROR |
| FR2763666B1 (en) * | 1997-05-23 | 1999-08-13 | Valeo Vision | MOTOR VEHICLE PROJECTOR WITH WIDE BEAM GENERATOR AND WINDOW GLASS |
| FR2774150B1 (en) | 1998-01-28 | 2000-04-14 | Valeo Vision | CROSS-SOURCE PROJECTOR FOR A MOTOR VEHICLE, LIKELY TO TRANSMIT A BEAM WITH A CLEAR CUT |
| FR2774149B1 (en) | 1998-01-28 | 2000-04-14 | Valeo Vision | MOTOR VEHICLE HEADLIGHT, INCLUDING A CROSS-SECTIONAL SOURCE, AND CAPABLE OF GENERATING A BEAM WITH NON-RECTILLINE CUT |
| FR2774151B1 (en) | 1998-01-28 | 2000-04-14 | Valeo Vision | MOTOR VEHICLE PROJECTOR WITH VIRTUAL LIGHT SOURCE |
| FR2782148B1 (en) | 1998-08-10 | 2001-02-09 | Valeo Vision | MOTOR VEHICLE PROJECTOR WITH A TWO-FILAMENT LAMP AND AN IMPROVED MIRROR |
| FR2782549B1 (en) | 1998-08-18 | 2001-03-02 | Valeo Vision | MOTOR VEHICLE PROJECTOR PROVIDED WITH MEANS FOR SELECTIVELY TRANSMITTING A BEAM FOR RIGHT OR LEFT TRAFFIC |
| JP4031600B2 (en) * | 1999-10-01 | 2008-01-09 | 株式会社小糸製作所 | Method for determining reflecting surface of reflector for vehicle lamp |
| FR2800439B1 (en) | 1999-10-29 | 2002-02-15 | Valeo Vision | VEHICLE PROJECT, ESPECIALLY CROSSING PROJECTOR, WITH REDUCED OVERALL |
| FR2804495B1 (en) | 2000-01-31 | 2002-06-07 | Valeo Vision | MOTOR VEHICLE HEADLIGHT, INCLUDING A CROSS-SECTIONAL SOURCE, AND CAPABLE OF GENERATING A BEAM WITH NON-RECTILLINE CUT |
| FR2822929B1 (en) | 2001-03-30 | 2003-12-12 | Valeo Vision | REDUCED OVERALL PROJECTOR FOR MOTOR VEHICLE |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE435946C (en) * | 1925-12-24 | 1926-10-20 | Mikron G M B H | Drawing device with two parallel guide arms connected in series |
| US1732884A (en) * | 1927-02-14 | 1929-10-22 | Indiana Lamp Corp | Reflector for headlights |
| GB435946A (en) * | 1933-07-13 | 1935-10-02 | Machal Projecteurs | Improvements in or relating to machines for the manufacture of corrugated reflectorsespecially for automobile headlights |
| FR986492A (en) * | 1949-03-09 | 1951-08-01 | Holophane | Improvements to reflectors with reflective internal surface |
| US2999924A (en) * | 1957-09-10 | 1961-09-12 | Mottier Felix | Anti-fog lighting projector |
| US3511983A (en) * | 1967-04-10 | 1970-05-12 | Corning Glass Works | Lighting device for dental and surgical procedures |
| US4087682A (en) * | 1976-03-15 | 1978-05-02 | Kolodziej Henry W | Illuminating device |
| FR2460442A1 (en) * | 1979-06-29 | 1981-01-23 | Cibie Projecteurs | NEW PROJECTOR STRUCTURE, IN PARTICULAR OF AUTOMOTIVE PROJECTOR |
| EP0084934A1 (en) * | 1982-01-16 | 1983-08-03 | LUCAS INDUSTRIES public limited company | Lamp reflector |
| FR2536502B1 (en) * | 1982-11-19 | 1987-01-09 | Cibie Projecteurs | CROSSING PROJECTOR FOR MOTOR VEHICLE |
| JP2604646B2 (en) * | 1991-01-28 | 1997-04-30 | 株式会社小糸製作所 | Vehicle headlight reflector |
-
1993
- 1993-09-24 FR FR9311403A patent/FR2710393B1/en not_active Expired - Lifetime
-
1994
- 1994-09-22 DE DE69416922T patent/DE69416922T2/en not_active Expired - Lifetime
- 1994-09-22 EP EP94402109A patent/EP0645578B1/en not_active Expired - Lifetime
- 1994-09-23 US US08/311,552 patent/US5567044A/en not_active Expired - Lifetime
- 1994-09-26 JP JP22987894A patent/JP3579930B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0645578A2 (en) | 1995-03-29 |
| JP3579930B2 (en) | 2004-10-20 |
| DE69416922D1 (en) | 1999-04-15 |
| EP0645578A3 (en) | 1995-04-26 |
| DE69416922T2 (en) | 1999-07-22 |
| FR2710393A1 (en) | 1995-03-31 |
| JPH07169304A (en) | 1995-07-04 |
| US5567044A (en) | 1996-10-22 |
| FR2710393B1 (en) | 1995-12-15 |
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