EP0639740A1 - Vehicle light for signalling - Google Patents

Vehicle light for signalling Download PDF

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Publication number
EP0639740A1
EP0639740A1 EP94401553A EP94401553A EP0639740A1 EP 0639740 A1 EP0639740 A1 EP 0639740A1 EP 94401553 A EP94401553 A EP 94401553A EP 94401553 A EP94401553 A EP 94401553A EP 0639740 A1 EP0639740 A1 EP 0639740A1
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EP
European Patent Office
Prior art keywords
reflector
ridges
lenses
motor vehicles
signaling light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94401553A
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German (de)
French (fr)
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EP0639740B1 (en
Inventor
Alain Buisson
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.)
Compagnie dEquipements Automobiles Axo Scintex SA
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Compagnie dEquipements Automobiles Axo Scintex SA
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Application filed by Compagnie dEquipements Automobiles Axo Scintex SA filed Critical Compagnie dEquipements Automobiles Axo Scintex SA
Publication of EP0639740A1 publication Critical patent/EP0639740A1/en
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Publication of EP0639740B1 publication Critical patent/EP0639740B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors

Definitions

  • the present invention relates to a signaling light for motor vehicles.
  • the invention relates to lights comprising, a reflector with an incandescent lamp and the front face of which is closed by a translucent diffuser.
  • prisms are provided on the reflector. These prisms, seen from the outside, are unsightly.
  • German Patent No. 1,034,954 which includes a parabolic reflector having, on its surface, large convex waves, the reflector being closed by a window having, on its internal face, small projections.
  • Such a fire has various drawbacks. Indeed, the waves are visible from the outside which is unsightly, moreover the light does not present, when lit, a luminous homogeneity, this is due to the fact that the projections are small and separated from each other by flat areas so that, if at the level of the projections the rays are concentrated in the flat areas these are diffused in all directions, this effect being further increased by the large dimension of the waves with respect to the projections.
  • One of the aims of the invention is to produce a light which makes it possible to obtain a regular density of lighting and which, seen from the outside, is aesthetic.
  • the light, object of the present invention is of the type comprising a reflector with reliefs on its surface, an incandescent lamp and a translucent diffuser closing the front face of the reflector and the face of which, facing the reflector, is provided with lenses, said light being characterized in that the reliefs of the reflector are formed by a series of parallel ridges having a width of the order of 0.5 mm, while the lenses of the diffuser are formed by a series of contiguous parallel cylindrical lenses having dimensions larger than those of the ridges and extending in a direction orthogonal to the ridges.
  • the reflector seems without relief which is more harmonious.
  • the reflector is diffusing and associated with the diffuser whose cylindrical lenses are contiguous to each other, a perfectly regular beam is obtained.
  • the ridges are formed by stepped grooves.
  • the ridges are formed by grooves with convex radii.
  • the ridges are formed by grooves with concave radii.
  • the streaks may have facets.
  • the pitch of the lenses is of the order of 6mm.
  • Figure 1 is a horizontal sectional view along line 1-1 of Figure 2.
  • Figure 2 is a sectional view along line 2-2 of Figure 1.
  • Figure 3 Figure 4 and Figure 5 are sectional views on a larger scale showing the internal surface of the diffusing reflector.
  • Figures 3A, 4A and 5A show, in perspective, the streak facets of Figures 3, 4 and 5 respectively.
  • the signaling light shown in the figures comprises a diffusing reflector 1 in the central part of which is housed a lamp 2 mounted in a socket 3 and connected in a known manner to contacts inserted on a suitable electrical circuit.
  • the diffusing reflector comprises a series of parallel ridges 4. These ridges can be stepped as shown in FIG. 3 and have facets 4a.
  • the streaks 4 may have convex radii (see FIG. 4) and have facets 4a (see FIG. 4A).
  • FIGS. 5 and 5A show streaks 4 with concave radii with facets 4a.
  • the front part of the reflector 1 is closed by a diffuser 5, preferably colored and which has, on its internal surface, facing the reflector, a series of parallel cylindrical lenses 7.
  • Such lenses are attached to each other without leaving any space between them.
  • Such lenses can have a pitch of 6mm.
  • the streaks are very small compared to the lenses which improves the desired effect.
  • the cylindrical lenses 7 extend in a direction orthogonal to the ridges 4, the latter having a width of about 0.5mm.
  • the diffusing reflector seen from the outside, gives the impression of a continuous surface and homogeneous lighting is obtained in a determined volume, the illumination density being practically constant in the volume considered.

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

Abstract

Signalling light for motor vehicles, of the type comprising a reflector (1), having reliefs, and an incandescent lamp (2), and the front face of which is closed by a translucent diffuser provided with lenses, characterised in that the reflector comprises a series of parallel striae (4) having a width of the order of 0.5 mm to form a diffusing reflector, whereas the diffuser has, on its face turned towards the reflector, a series of parallel contiguous cylindrical lenses (7) having dimensions greater than those of the striae (4), the said lenses extending in a direction which is orthogonal with respect to the striae. <IMAGE>

Description

La présente invention se rapporte à un feu de signalisation pour véhicules automobiles.The present invention relates to a signaling light for motor vehicles.

L'invention vise des feux comprenant, un réflecteur avec une lampe à incandescence et dont la face avant est fermée par un diffuseur translucide.The invention relates to lights comprising, a reflector with an incandescent lamp and the front face of which is closed by a translucent diffuser.

En général dans les feux de signalisation qui sont destinés à constituer, soit les feux latéraux, soit les feux arrières, soit encore les indicateurs de changement de direction ou les feux de recul, on prévoit, sur le réflecteur, des prismes. Ces prismes, vus de l'extérieur, sont inesthétiques.In general, in the signaling lights which are intended to constitute either the side lights or the rear lights, or even the direction change indicators or the reversing lights, prisms are provided on the reflector. These prisms, seen from the outside, are unsightly.

La technique antérieure connaît le brevet allemand n° 1 034 954 qui comprend un réflecteur parabolique présentant, sur sa surface, de larges ondes convexes, le réflecteur étant fermé par une vitre présentant, sur sa face interne, des petites saillies.The prior art knows German Patent No. 1,034,954 which includes a parabolic reflector having, on its surface, large convex waves, the reflector being closed by a window having, on its internal face, small projections.

Un tel feu présente différents inconvénients. En effet, les ondes sont visibles de l'extérieur ce qui est inesthétique, de plus le feu ne présente pas, allumé, une homogénéïté lumineuse, ceci est dû au fait que les saillies sont petites et séparées entre elles par des plages planes de sorte que, si au droit des saillies les rayons sont concentrés dans les plages planes ceux-ci sont diffusés dans toutes les directions, cet effet étant encore augmenté par la dimension importante des ondes par rapport aux saillies.Such a fire has various drawbacks. Indeed, the waves are visible from the outside which is unsightly, moreover the light does not present, when lit, a luminous homogeneity, this is due to the fact that the projections are small and separated from each other by flat areas so that, if at the level of the projections the rays are concentrated in the flat areas these are diffused in all directions, this effect being further increased by the large dimension of the waves with respect to the projections.

L'un des buts de l'invention est de réaliser un feu qui permet d'obtenir une densité d'éclairement régulière et qui, vu de l'extérieur, soit esthétique.One of the aims of the invention is to produce a light which makes it possible to obtain a regular density of lighting and which, seen from the outside, is aesthetic.

Le feu, objet de la présente invention, est du type comprenant un réflecteur avec des reliefs sur sa surface, une lampe à incandescence et un diffuseur translucide fermant la face antérieure du réflecteur et dont la face, tournée en regard du réflecteur, est pourvue de lentilles, ledit feu étant caractérisé en ce que les reliefs du réflecteur sont constitués par une série de stries parallèles ayant une largeur de l'ordre de 0,5mm, tandis que les lentilles du diffuseur sont formées d'une série de lentilles cylindriques parallèles contiguës ayant des dimensions supérieures à celles des stries et s'étendant dans une direction orthogonale par rapport aux stries.The light, object of the present invention, is of the type comprising a reflector with reliefs on its surface, an incandescent lamp and a translucent diffuser closing the front face of the reflector and the face of which, facing the reflector, is provided with lenses, said light being characterized in that the reliefs of the reflector are formed by a series of parallel ridges having a width of the order of 0.5 mm, while the lenses of the diffuser are formed by a series of contiguous parallel cylindrical lenses having dimensions larger than those of the ridges and extending in a direction orthogonal to the ridges.

Grâce à une telle disposition, vu de l'extérieur, le réflecteur semble sans relief ce qui est plus harmonieux. Ainsi, le réflecteur est diffusant et associé au diffuseur dont les lentilles cylindriques sont attenantes les unes aux autres, on obtient un faisceau parfaitement régulier.Thanks to such an arrangement, seen from the outside, the reflector seems without relief which is more harmonious. Thus, the reflector is diffusing and associated with the diffuser whose cylindrical lenses are contiguous to each other, a perfectly regular beam is obtained.

Suivant un mode de réalisation particulier, les stries sont constituées par des rainures à échelons.According to a particular embodiment, the ridges are formed by stepped grooves.

Suivant une variante de réalisation, les stries sont constituées par des rainures à rayons convexes.According to an alternative embodiment, the ridges are formed by grooves with convex radii.

Suivant encore une variante de réalisation, les stries sont constituées par des rainures à rayons concaves.According to yet another alternative embodiment, the ridges are formed by grooves with concave radii.

Les stries peuvent présenter des facettes.The streaks may have facets.

De préférence, le pas des lentilles est de l'ordre de 6mm.Preferably, the pitch of the lenses is of the order of 6mm.

L'invention va maintenant être décrite avec plus de détails en se référant à des modes de réalisation particuliers donnés à titre d'exemple seulement et représentés aux dessins annexés, dans lesquels :The invention will now be described in more detail with reference to particular embodiments given by way of example only and shown in the accompanying drawings, in which:

Figure 1 est une vue en coupe horizontale suivant la ligne 1-1 de la figure 2.Figure 1 is a horizontal sectional view along line 1-1 of Figure 2.

Figure 2 est une vue en coupe suivant la ligne 2-2 de la figure 1.Figure 2 is a sectional view along line 2-2 of Figure 1.

Figure 3, figure 4 et figure 5 sont des vues en coupe à plus grande échelle montrant la surface interne du réflecteur diffusant.Figure 3, Figure 4 and Figure 5 are sectional views on a larger scale showing the internal surface of the diffusing reflector.

Les figures 3A, 4A et 5A montrent, en perspective, les facettes de stries des figures 3, 4 et 5 respectivement.Figures 3A, 4A and 5A show, in perspective, the streak facets of Figures 3, 4 and 5 respectively.

Le feu de signalisation représenté aux figures comprend un réflecteur diffusant 1 dans la partie centrale duquel est logée une lampe 2 montée dans une douille 3 et reliée d'une manière connue à des contacts insérés sur un circuit électrique convenable.The signaling light shown in the figures comprises a diffusing reflector 1 in the central part of which is housed a lamp 2 mounted in a socket 3 and connected in a known manner to contacts inserted on a suitable electrical circuit.

Le réflecteur diffusant comporte une série de stries parallèles 4. Ces stries peuvent être à échelons comme montré sur la figure 3 et présenter des facettes 4a.The diffusing reflector comprises a series of parallel ridges 4. These ridges can be stepped as shown in FIG. 3 and have facets 4a.

Les stries 4 peuvent être à rayons convexes (voir figure 4) et présenter des facettes 4a (voir figure 4A).The streaks 4 may have convex radii (see FIG. 4) and have facets 4a (see FIG. 4A).

Les figures 5 et 5A montrent des stries 4 à rayons concaves avec des facettes 4a.FIGS. 5 and 5A show streaks 4 with concave radii with facets 4a.

La partie avant du réflecteur 1 est fermée par un diffuseur 5, de préférence coloré et qui présente, sur sa surface interne, tournée en regard du réflecteur, une série de lentilles cylindriques parallèles 7.The front part of the reflector 1 is closed by a diffuser 5, preferably colored and which has, on its internal surface, facing the reflector, a series of parallel cylindrical lenses 7.

Ces lentilles sont attenantes les unes aux autres sans ménager aucun espace entre elles. De telles lentilles peuvent avoir un pas de 6mm.These lenses are attached to each other without leaving any space between them. Such lenses can have a pitch of 6mm.

Ainsi, les stries sont très petites par rapport aux lentilles ce qui améliore l'effet recherché.Thus, the streaks are very small compared to the lenses which improves the desired effect.

Comme on le voit sur les figures 1 et 2, les lentilles cylindriques 7 s'étendent dans une direction orthogonale par rapport aux stries 4, ces dernières ayant une largeur de l'ordre de 0,5mm.As seen in Figures 1 and 2, the cylindrical lenses 7 extend in a direction orthogonal to the ridges 4, the latter having a width of about 0.5mm.

Grâce à cette disposition, le réflecteur diffusant, vu de l'extérieur, donne l'impression d'une surface continue et on obtient un éclairage homogène dans un volume déterminé, la densité d'éclairement étant pratiquement constante dans le volume considéré.Thanks to this arrangement, the diffusing reflector, seen from the outside, gives the impression of a continuous surface and homogeneous lighting is obtained in a determined volume, the illumination density being practically constant in the volume considered.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation qui viennent d'être décrits et représentés. On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'invention.Of course, the invention is not limited to the embodiments which have just been described and shown. Many detailed modifications can be made without departing from the scope of the invention.

Claims (6)

Feu de signalisation pour véhicules automobiles du type comprenant un réflecteur (1) avec des reliefs (4) sur sa surface, une lampe à incandescence (2) et un diffuseur (5) fermant la face antérieure du réflecteur (1) et dont la face, tournée en regard dudit réflecteur (1), est pourvue de lentilles, caractérisé en ce que les reliefs du réflecteur (1) sont constitués par une série de stries parallèles (4) ayant une largeur de l'ordre de 0,5mm, tandis que les lentilles du diffuseur (5) sont formées d'une série de lentilles cylindriques parallèles contiguës ayant des dimensions supérieures à celles des stries (4) et s'étendant dans une direction orthogonale par rapport aux stries (4).Signaling light for motor vehicles of the type comprising a reflector (1) with reliefs (4) on its surface, an incandescent lamp (2) and a diffuser (5) closing the front face of the reflector (1) and the face of which , turned opposite said reflector (1), is provided with lenses, characterized in that the reliefs of the reflector (1) consist of a series of parallel ridges (4) having a width of the order of 0.5 mm, while that the diffuser lenses (5) are formed from a series of contiguous parallel cylindrical lenses having dimensions greater than those of the ridges (4) and extending in a direction orthogonal to the ridges (4). Feu de signalisation pour véhicules automobiles, selon la revendication 1, caractérisé en ce que les stries (4) sont constituées par des rainures à échelons.Signaling light for motor vehicles, according to claim 1, characterized in that the ridges (4) consist of stepped grooves. Feu de signalisation pour véhicules automobiles, selon la revendication 1, caractérisé en ce que les stries (4) sont constituées par des rainures à rayons convexes.Signaling light for motor vehicles, according to claim 1, characterized in that the ridges (4) consist of grooves with convex radii. Feu de signalisation pour véhicules automobiles, selon la revendication 1, caractérisé en ce que les stries (4) sont constituées par des rainures à rayons concaves.Signaling light for motor vehicles, according to claim 1, characterized in that the ridges (4) are formed by grooves with concave radii. Feu de signalisation pour véhicules automobiles, selon la revendication 1, caractérisé en ce que les stries (4) présentent des facettes (4a).Signaling light for motor vehicles, according to claim 1, characterized in that the ridges (4) have facets (4a). Feu de signalisation pour véhicules automobiles, selon la revendication 1, caractérisé en ce que les lentilles cylindriques présentent un pas de l'ordre de 6mm.Signaling light for motor vehicles, according to claim 1, characterized in that the cylindrical lenses have a pitch of the order of 6mm.
EP94401553A 1993-07-20 1994-07-06 Vehicle light for signalling Expired - Lifetime EP0639740B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9308863 1993-07-20
FR9308863A FR2708081B1 (en) 1993-07-20 1993-07-20 Motor vehicle signaling light.

Publications (2)

Publication Number Publication Date
EP0639740A1 true EP0639740A1 (en) 1995-02-22
EP0639740B1 EP0639740B1 (en) 1997-05-28

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EP94401553A Expired - Lifetime EP0639740B1 (en) 1993-07-20 1994-07-06 Vehicle light for signalling

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EP (1) EP0639740B1 (en)
DE (1) DE69403404T2 (en)
ES (1) ES2102787T3 (en)
FR (1) FR2708081B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704267A1 (en) * 1996-02-23 1997-09-04 Valeo Vision Indicator lamp for motor vehicle e.g. car
DE19737550A1 (en) * 1996-09-18 1998-03-19 Valeo Vision Signal lamp for motor vehicle
DE19737549A1 (en) * 1996-09-20 1998-03-26 Valeo Vision Motor vehicle signal light mirror with ribbed surface
EP0889284A2 (en) 1997-07-01 1999-01-07 Hella KG Hueck & Co. Vehicle light
DE19844594A1 (en) * 1998-09-29 2000-05-11 Hella Kg Hueck & Co Light for motor vehicles
EP0915286A3 (en) * 1997-11-05 2001-02-07 Ford Motor Company Automotive Tail Lamp
CN114543046A (en) * 2020-11-25 2022-05-27 株式会社小糸制作所 Vehicle lamp

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951407A1 (en) * 1999-10-26 2001-05-03 Hella Kg Hueck & Co Automobile lamp e.g. rear fog lamp, has light beam passed through optical disc with optical elements having cylindrical lens regions either side of 2 perpendicular centre lines
FR3005717A1 (en) * 2013-05-14 2014-11-21 Peugeot Citroen Automobiles Sa HOMOGENEOUS LIGHTING AND COLOR LIGHTING DEVICE
DE102020108010A1 (en) 2020-03-24 2021-09-30 Bayerische Motoren Werke Aktiengesellschaft Lighting device for a motor vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054934B (en) * 1954-08-03 1959-04-16 Westfaelische Metall Industrie Motor vehicle signal light
FR2107896A1 (en) * 1970-09-23 1972-05-12 Gen Motors Corp
EP0081361A1 (en) * 1981-12-08 1983-06-15 LUCAS INDUSTRIES public limited company Lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054934B (en) * 1954-08-03 1959-04-16 Westfaelische Metall Industrie Motor vehicle signal light
FR2107896A1 (en) * 1970-09-23 1972-05-12 Gen Motors Corp
EP0081361A1 (en) * 1981-12-08 1983-06-15 LUCAS INDUSTRIES public limited company Lamp

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704267A1 (en) * 1996-02-23 1997-09-04 Valeo Vision Indicator lamp for motor vehicle e.g. car
US5945916A (en) * 1996-02-23 1999-08-31 Valeo Vision Indicator light with improved light spreading means
DE19737550A1 (en) * 1996-09-18 1998-03-19 Valeo Vision Signal lamp for motor vehicle
DE19737549A1 (en) * 1996-09-20 1998-03-26 Valeo Vision Motor vehicle signal light mirror with ribbed surface
EP0889284A2 (en) 1997-07-01 1999-01-07 Hella KG Hueck & Co. Vehicle light
EP0915286A3 (en) * 1997-11-05 2001-02-07 Ford Motor Company Automotive Tail Lamp
DE19844594A1 (en) * 1998-09-29 2000-05-11 Hella Kg Hueck & Co Light for motor vehicles
CN114543046A (en) * 2020-11-25 2022-05-27 株式会社小糸制作所 Vehicle lamp

Also Published As

Publication number Publication date
FR2708081A1 (en) 1995-01-27
EP0639740B1 (en) 1997-05-28
FR2708081B1 (en) 1995-09-01
ES2102787T3 (en) 1997-08-01
DE69403404T2 (en) 1997-09-18
DE69403404D1 (en) 1997-07-03

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