FR2576565A3 - Coloured-light signalling lamp for motor vehicles - Google Patents

Coloured-light signalling lamp for motor vehicles Download PDF

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Publication number
FR2576565A3
FR2576565A3 FR8517613A FR8517613A FR2576565A3 FR 2576565 A3 FR2576565 A3 FR 2576565A3 FR 8517613 A FR8517613 A FR 8517613A FR 8517613 A FR8517613 A FR 8517613A FR 2576565 A3 FR2576565 A3 FR 2576565A3
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FR
France
Prior art keywords
light
concave
dioptres
motor vehicles
diopters
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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
FR8517613A
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French (fr)
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FR2576565B3 (en
Inventor
Luciano Bisoglio
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Comind SpA
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Comind SpA
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Publication of FR2576565A3 publication Critical patent/FR2576565A3/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/255Filters

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

Abstract

This coloured-light signalling lamp for motor vehicles comprises a reflector 2 and a transparent diffusing element 5 whose outer surface 8 has opaque areas 10 and whose inner surface 6 has convex refracting surfaces 7 which correspond to the areas of the outer surface which let the light through and are centred on these areas. The areas of this outer surface which let the light through have concave refracting surfaces 9 which in combination with the convex refracting surfaces 7 form a plurality of concave-convex lenses.

Description

La présente invention se rapporte aux feux de signalisation à lumière colorée pour véhicules automobiles du type qui comprend un réflecteur, une lampe dispo sée sensiblement au foyer du réflecteur et un élément transparent diffuseur qui possède une face externe présentant des zones rendues opaques et une face interne composée de dioptres convexes, qui correspondent aux zones de la face externe qui laissent passer la lumière et sont centrés sur ces zones. The present invention relates to colored light signaling lights for motor vehicles of the type which comprises a reflector, a lamp arranged substantially at the focus of the reflector and a transparent diffusing element which has an external face having areas made opaque and an internal face. composed of convex dioptres, which correspond to the zones of the external face which let the light pass and are centered on these zones.

I1 est connu que les stylistes automobiles portent un intérêt aux feux à lumière colorée qui présentent un aspect chromatique neutre lorsqu'ils sont éteints. A cet effet, on a adopté des solutions qui prévoient l'utilisation d'un réticule ou de bandes opaques, d'une teinte neutre, argentée, noire ou de la couleur de la voiture, superposé ou superposées à l'élément transparent coloré qui, normalement, joue également le rôle d'un élément diffuseur. It is known that automotive stylists are interested in lights with colored light which have a neutral chromatic appearance when they are switched off. To this end, solutions have been adopted which provide for the use of a reticle or opaque bands, of a neutral, silver, black or car color, superimposed or superimposed on the colored transparent element which , normally also plays the role of a diffuser element.

Le résultat de ces solutions est de transmettre à l'oeil de l'observateur, lorsque la lampe du feu est éteinte, un reflet chromatique plus intense, et par conséquent plus visible, que celui provenant de l'élément transparent coloré. Pour éviter l'occultation partielle du flux lumineux provenant de la lampe, résultant de la présence du réticule, on a prévu, sur la surface interne de l'élément transparent coloré, les dioptres convergents précités, dont la fonction est de concentrer le flux lumineux dans les ajours du réticule. On a donc pu ainsi adopter des réticules possédant une surf ace plus étendue sans cependant réduire l'intensité du eux lumineux qui émerge de l'élément transparent coloré. The result of these solutions is to transmit to the eye of the observer, when the lamp of the fire is out, a chromatic reflection more intense, and therefore more visible, than that coming from the colored transparent element. To avoid partial obscuring of the light flux coming from the lamp, resulting from the presence of the reticle, the abovementioned converging dioptres, the function of which is to concentrate the light flux, have been provided on the internal surface of the colored transparent element. in the crosshairs. It was thus possible to adopt reticles having a more extensive ace surface without however reducing the intensity of the luminous them which emerges from the colored transparent element.

Si l'on veut encore augmenter la surface du réticule opaque afin d'obtenir, lorsque le feu est éteint, un reflet chromatique du réticule dans une teinte nettement plus intense que celle provenant de l'élément transparent coloré, il est nécessaire d'augmenter la courbure des dioptres convergents. If we still want to increase the surface of the opaque reticle in order to obtain, when the fire is out, a chromatic reflection of the reticle in a shade clearly more intense than that coming from the colored transparent element, it is necessary to increase the curvature of the converging diopters.

Si l'on procède de cette façon, il se pose le problème consistant en ce que les rayons lumineux provenant de la lampe subissent une déviation excessive en traversant l'élément transparent coloré t cette déviation peut être incompatible avec les réglementations en vigueur en matière d'éclairage dans le domaine automobile. If this is done, the problem arises that the light rays coming from the lamp undergo an excessive deflection by passing through the colored transparent element t this deviation may be incompatible with the regulations in force regarding in the automotive field.

Le but de la présente invention est donc de réaliser un feu équipé d'un élément transparent diffuseur qui possède un plus grand rapport entre la surface opaque et la surface qui laisse passer la lumière et qui, de cette façon, donne un résultat esthétique meilleur sans poser le problème précité. Le feu de signalisation selon l'invention est caractérisé en ce que la face externe de l'élément diffuseur présente, dans ses zones qui laissent passer la lumière, des dioptres concaves qui comparent avec lesdits dioptres convexes prévus sur la face interne, pour former une pluralité de lentilles concaves-convexes. The object of the present invention is therefore to produce a fire equipped with a transparent diffusing element which has a greater ratio between the opaque surface and the surface which lets light through and which, in this way, gives a better aesthetic result without pose the aforementioned problem. The signaling light according to the invention is characterized in that the external face of the diffusing element has, in its zones which allow light to pass, concave dioptres which compare with said convex dioptres provided on the internal face, to form a plurality of concave-convex lenses.

Avec cette solution, les rayons lumineux qui frappent la surface interne de l'élément transparent diffuseur sont concentrés vers les zones de la face externe qui laissent passer la lumière en subissant une déviation inférieure à celle qu'on observerait si la face externe ne présentait pas lesdits dioptres concaves. A égalité d'angle de déviation, il est donc possible de disposer d'une plus grande surface totale des zones teintées opaques et, par conséquent, d'obtenir un meilleur effet esthétique. With this solution, the light rays which strike the internal surface of the transparent diffusing element are concentrated towards the zones of the external face which allow the light to pass by undergoing a deviation less than that which would be observed if the external face did not present said concave diopters. With the same deflection angle, it is therefore possible to have a greater total surface area of the opaque tinted areas and, consequently, to obtain a better aesthetic effect.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'un exemple de roalisation et en se référant aux dessins annexés sur lesquels,
la figure 1 est une coupe d'un feu selon l'invention ;
la figure 2 est un détail agrandi de la figure 1
la figure 3 est une coupe d'un feu d'une construction simplifiee.
Other characteristics and advantages of the invention will be better understood on reading the description which follows of an example of alignment and with reference to the appended drawings in which,
Figure 1 is a section through a fire according to the invention;
Figure 2 is an enlarged detail of Figure 1
Figure 3 is a section of a fire of a simplified construction.

Sur les dessins, on a indiqué en 1 le corps d'un feu de signalisation pour véhicules automobiles. Le corps 1 est creux et porte, sur sa surface interne, un réflecteur parabolique 2 formé, par exemple, d'une façon connue en soi, d'une pièce cintrée faite de tôle aluminiée. La partie centrale du corps 1 est munie d'une douille porte-lampe 3 portant une lampe à incandescence 4, dont le fil-ament se trouve sensiblement au foyer du réflecteur 2. In the drawings, the body of a traffic light for motor vehicles has been indicated at 1. The body 1 is hollow and carries, on its internal surface, a parabolic reflector 2 formed, for example, in a manner known per se, of a curved piece made of aluminized sheet. The central part of the body 1 is provided with a lamp holder socket 3 carrying an incandescent lamp 4, the filament of which is located substantially at the focus of the reflector 2.

Sur le bord du corps 1, est fixé un élément transparent diffuseur coloré 5. L'élément diffuseur 5 est formé d'un corps de matière plastique qui présente une série de dioptres sphériques convexes 7 sur sa face interne d'une façon connue en soi. La couleur de l'éÏé- ment diffuseur peut varier selon l'utilisation du feu de signalisation. Pour les feux indicateurs de direction, la couleur est orange tandis que, pour les feux d'arrêt ("feux stop"), la couleur est rouge. On the edge of the body 1, a transparent colored diffusing element 5 is fixed. The diffusing element 5 is formed of a plastic body which has a series of convex spherical dioptres 7 on its internal face in a manner known per se . The color of the diffuser element may vary depending on the use of the traffic light. For the direction indicator lights, the color is orange while for the stop lights the color is red.

Sur sa face externe 8, l'élément diffuseur 1 présente une série de dioptres sphériques concaves 9, centrés sur les dioptres sphériques convexes 7. On its external face 8, the diffusing element 1 has a series of concave spherical dioptres 9, centered on the convex spherical dioptres 7.

La surface 8 qui n'est pas intéressée par les dioptres 9 est revêtue d'une couche opaque 10. Cette co- che 10 peut être obtenue par peinture, su encore elle peut être constituée par une couche de métal déposee par galvanoplastie ou par un autre procédé analogue. The surface 8 which is not interested in the dioptres 9 is coated with an opaque layer 10. This notch 10 can be obtained by painting, or again it can be constituted by a layer of metal deposited by electroplating or by a another similar process.

Parallèlement à la surface 8 de l'élément diffuseur 5, est positionnée une feuille ou vitre transparente 11 qui a pour fonction de protéger des éventuels encrassages, les cavités formées par les dioptres 9. La présente de cette feuille -11 est toutefois facultative. Parallel to the surface 8 of the diffuser element 5, is positioned a transparent sheet or window 11 which has the function of protecting from possible fouling, the cavities formed by the dioptres 9. The present of this sheet -11 is however optional.

Ainsi qu'on l'a représenté sur la figure 3, les dioptres concaves 9 de 11 élément diffuseur 5 peuvent présenter une section sensiblement en U, avec des parois latérales 12 planes et divergentes. Cette solution permet d'obtenir ces dioptres concaves d'une façon simple, par exemple par des fraisages transversaux de l'élément 5. As shown in FIG. 3, the concave diopters 9 of the diffuser element 5 can have a substantially U-shaped section, with side walls 12 that are flat and divergent. This solution makes it possible to obtain these concave diopters in a simple manner, for example by transverse milling of the element 5.

Au contraire, les dioptres convexes présents- sur la surface interne 6 peuvent avoir une surface-cylindrique.On the contrary, the convex diopters present on the internal surface 6 can have a cylindrical surface.

Comme on l'a indiqué schématiquement sur la figure 2, lorsque le feu est allumé, les rayons lumineux R sont concentrés par les ménisques 13 formés par les dioptres 7 et 9, d'une façon telle qu'aucun rayon ne soit intercepté par la couche opaque 10. En outre, la déviation totale subie par un rayon incident R qui frappé la surface interne 6 et sort à travers la surf ace 8 est-plus pe-tite que celle que l'on observerait en l'absence des dioptres 9 (cette déviation est indiquée en traits interrompus sur la figure). As indicated diagrammatically in FIG. 2, when the fire is lit, the light rays R are concentrated by the menisci 13 formed by the dioptres 7 and 9, in such a way that no ray is intercepted by the opaque layer 10. In addition, the total deflection undergone by an incident ray R which strikes the internal surface 6 and exits through the ace surface 8 is smaller than that which would be observed in the absence of the dioptres 9 (this deviation is indicated in broken lines in the figure).

Bien entendu, diverses modifications pourront être apportées par l'homme de l'art au dispositif qui vient d'être décrit uniquement à titre d'exemple non limitatif sans sortir du cadre de l'invention. Par exemple, l'élément 5 peut revêtir la forme dtun cabochon et être fixé à l'intérieur du feu de façon à enfermer la lampe.  Of course, various modifications may be made by those skilled in the art to the device which has just been described solely by way of non-limiting example without departing from the scope of the invention. For example, the element 5 can take the form of a cabochon and be fixed inside the light so as to enclose the lamp.

Claims (3)

REVENDICATIONS 1 - Feu de signalisation à lumière colorée pour véhicules automobiles, du type qui comprend un réflecteur (2), une lampe (4) disposée sensiblement au foyer du réflecteur et un élément transparent diffuseur qui possède une face externe (8) présentant des zones rendues opaques et une face interne portant des dioptres convexes qui correspondent aux zones de la face externe qui laissent passer la lumière, caractérisé en ce que la face externe de l'élément diffuseur présente, dans ses zones qui-laissent passer la lumière, des dioptres concaves (9) qui coopèrent avec lesdits dioptres convexes pour former une pluralité de lentilles concaves-eon- vexes. 1 - Signaling light with colored light for motor vehicles, of the type which comprises a reflector (2), a lamp (4) disposed substantially at the focus of the reflector and a transparent diffusing element which has an external face (8) having rendered areas opaque and an internal face carrying convex dioptres which correspond to the zones of the external face which allow light to pass through, characterized in that the external face of the diffusing element has, in its zones which allow light to pass through, concave dioptres (9) which cooperate with said convex diopters to form a plurality of concave-eon-vex lenses. 2 - Feu de signalisation selon la revendication 1, caractérisé en ce que les dioptres concaves (9) sont formés par des empreintes de section sensiblement semicirculaire. 2 - Signaling light according to claim 1, characterized in that the concave diopters (9) are formed by imprints of substantially semicircular section. 3 - Feu de signalisation selon la revendication 1, caractérisé en ce que les dioptres concaves (9) sont constitues par des empreintes de section sensiblement en 3 - Signaling light according to claim 1, characterized in that the concave diopters (9) are formed by imprints of section substantially in U dont les ailes (12) sont divergentes. U whose wings (12) are divergent.
FR8517613A 1985-01-28 1985-11-28 COLORED LIGHT SIGNAL LIGHT FOR MOTOR VEHICLES Expired FR2576565B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8552911U IT8552911V0 (en) 1985-01-28 1985-01-28 COLORED LIGHT SIGNALING LIGHT FOR MOTOR VEHICLES

Publications (2)

Publication Number Publication Date
FR2576565A3 true FR2576565A3 (en) 1986-08-01
FR2576565B3 FR2576565B3 (en) 1987-02-20

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FR8517613A Expired FR2576565B3 (en) 1985-01-28 1985-11-28 COLORED LIGHT SIGNAL LIGHT FOR MOTOR VEHICLES

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DE (1) DE8533666U1 (en)
ES (1) ES290546U (en)
FR (1) FR2576565B3 (en)
IT (1) IT8552911V0 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604240A1 (en) * 1986-09-18 1988-03-25 Cibie Projecteurs Signalling light incorporating rear reflector elements in particular for motor vehicles
FR2635166A1 (en) * 1988-08-03 1990-02-09 Hella Kg Hueck & Co AUTOMOTIVE HEADLIGHT COMPRISING AN INTERMEDIATE DEFLECTION GLASS
FR2793301A1 (en) * 1999-05-05 2000-11-10 Axo Scintex Cie Equip Automobi Signal lamp for motor vehicles, presenting a uniform external view matching colour of vehicle body work and conforming with different regulations, through use of a banded front lens
EP1338844B1 (en) * 2002-02-21 2020-03-11 Valeo Vision Signal lamp for vehicle comprising an optical element which performs autonomously a signal function
EP4372270A1 (en) * 2022-11-21 2024-05-22 Marelli Automotive Lighting Italy S.p.A. Automotive lighting and/or signaling device with improved screen device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636383A1 (en) * 1986-10-25 1988-04-28 Swf Auto Electric Gmbh SIGNAL LIGHT, ESPECIALLY FOR MOTOR VEHICLES
DE3905779A1 (en) * 1989-02-24 1990-08-30 Reitter & Schefenacker Kg Light, in particular rear light of a motor vehicle
DE4230963A1 (en) * 1992-09-16 1994-03-17 Teves Gmbh Alfred Signal light
DE4324036C2 (en) * 1993-07-17 2003-03-27 Teves Gmbh Alfred Motor vehicle rear light with improved appearance
FR2743405B1 (en) * 1996-01-10 1998-04-03 Valeo Vision SIGNAL LIGHT WITH INTERMEDIATE OPTICAL PROCESSING AND STYLE SCREEN AND METHOD FOR MANUFACTURING THE INTERMEDIATE SCREEN
DE29904473U1 (en) 1999-03-11 1999-05-27 Hella Kg Hueck & Co, 59557 Lippstadt Light for vehicles
DE10053549B4 (en) * 2000-10-28 2009-04-02 Hella Kgaa Hueck & Co. signal light

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604240A1 (en) * 1986-09-18 1988-03-25 Cibie Projecteurs Signalling light incorporating rear reflector elements in particular for motor vehicles
FR2635166A1 (en) * 1988-08-03 1990-02-09 Hella Kg Hueck & Co AUTOMOTIVE HEADLIGHT COMPRISING AN INTERMEDIATE DEFLECTION GLASS
FR2793301A1 (en) * 1999-05-05 2000-11-10 Axo Scintex Cie Equip Automobi Signal lamp for motor vehicles, presenting a uniform external view matching colour of vehicle body work and conforming with different regulations, through use of a banded front lens
EP1338844B1 (en) * 2002-02-21 2020-03-11 Valeo Vision Signal lamp for vehicle comprising an optical element which performs autonomously a signal function
EP4372270A1 (en) * 2022-11-21 2024-05-22 Marelli Automotive Lighting Italy S.p.A. Automotive lighting and/or signaling device with improved screen device

Also Published As

Publication number Publication date
ES290546U (en) 1986-03-16
FR2576565B3 (en) 1987-02-20
DE8533666U1 (en) 1986-01-16
IT8552911V0 (en) 1985-01-28

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