EP0274325B1 - Farbiges Licht abgebende Signalleuchte mit farbloser Abdeckscheibe, insbesondere für Kraftfahrzeuge - Google Patents

Farbiges Licht abgebende Signalleuchte mit farbloser Abdeckscheibe, insbesondere für Kraftfahrzeuge Download PDF

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Publication number
EP0274325B1
EP0274325B1 EP87402936A EP87402936A EP0274325B1 EP 0274325 B1 EP0274325 B1 EP 0274325B1 EP 87402936 A EP87402936 A EP 87402936A EP 87402936 A EP87402936 A EP 87402936A EP 0274325 B1 EP0274325 B1 EP 0274325B1
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EP
European Patent Office
Prior art keywords
indicator lamp
lamp according
transparent
filter
lens
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
EP87402936A
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English (en)
French (fr)
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EP0274325A1 (de
Inventor
Gilbert Dilouya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP0274325A1 publication Critical patent/EP0274325A1/de
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Publication of EP0274325B1 publication Critical patent/EP0274325B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling 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
    • F21S43/255—Filters

Definitions

  • the present invention relates generally to motor vehicle signaling lights, and more particularly relates to a light capable of emitting colored light radiation and having, when it is extinguished, an essentially colorless appearance, and comprising a lamp , a reflector, a colorless transparent closing globe, a colored transparent balloon arranged around the lamp, as well as masking means to attenuate the perceptibility of the color of the balloon when the fire is out.
  • Such a fire is intended, while emitting colored radiation, for example amber or red thanks to the interposition of the filtering balloon, to appear essentially colorless when it is extinguished. It finds its place advantageously either, at the front of the vehicle next to a headlamp, by having an appearance similar to this when they are both switched off, or, in a rear optical unit, for example as rear fog lamp having an appearance similar to a colorless reversing lamp located symmetrically in the other optical unit.
  • the purpose of the masking means is to decrease the perceptibility of the color of the balloon from the outside through the closing globe when the fire is out and for this purpose comprise opaque zones of determined color, or even reflective, the function of which is is to reduce the proportion of light rays likely to penetrate inside the balloon and come out colored, and on the contrary to make the majority of the radiation coming, by diffusion or reflection, from non-transparent areas.
  • opaque or reflective areas are sometimes organized in strips of predetermined widths and steps.
  • common masking means are constituted by a screen printing deposit formed directly on the outer surface of the colored balloon, after its manufacture, for example by molding.
  • colored balloons have, for different lights, different shapes and dimensions, and it is therefore necessary to provide for each type of balloon a different screen printing tool (stamp and plate).
  • the application of pressure is likely to be carried out in a non-uniform manner, which results in inking defects.
  • the present invention aims to overcome the drawbacks of the prior art and to propose simplified means for producing the means for masking the colored balloon in a fire of the type presented in the introduction.
  • Another object of the invention is to provide a signaling light whose masking means and the colorless closing globe cooperate to help reduce the perception of the colored balloon of the fire and give the fire a uniformity of satisfactory appearance.
  • the fire is characterized, in accordance with the present invention, in that the masking means comprise a flexible transparent sheet formed into a developable surface between the ball and the globe and comprising transparent zones and opaque zones of determined color produced by screen printing.
  • a signaling light in accordance with the present invention comprises a lamp 10, a reflector 20, for example of the parabolic type and focused on the filament 11 of the lamp 10, a closing globe or colorless sight glass 30, for example made of transparent plastic, as well as a colored transparent balloon 40, for example of amber color, also made of plastic.
  • the light rays emitted by the filament 11 take on an amber color when passing through the balloon, and are reflected by the reflector 20 to form an amber beam crossing without alteration in color the globe 30 and intended, for example, to fulfill the flashing function. .
  • the colorless closing globe comprising in most cases means of deflection or distribution of the light by refraction, gives it globally a white or gray appearance, the colored balloon 40 being, by the position it occupies, comparatively hardly noticeable, except in the case of direct solar lighting, for example.
  • the means for masking the balloon 40 are constituted by a transparent flexible sheet 50, produced for example from a thin film of polycarbonate, on which is produced, by screen printing, an opaque masking 52 of appropriate geometry .
  • a transparent flexible sheet 50 produced for example from a thin film of polycarbonate, on which is produced, by screen printing, an opaque masking 52 of appropriate geometry .
  • the appearance of the extinguished fire must be white or gray, to ensure satisfactory appearance continuity for example with a spotlight located next to it, we will use in the screen printing process a white or gray ink, preferably shiny appearance, in order to reinforce, in ambient lighting, the white-gray color of the rays re-emitted by the fire towards the outside.
  • the geometry of the masking may take any appropriate configuration.
  • the opacified zones may be in the form of horizontal and / or vertical bands of determined widths and steps, or alternatively of points arranged in a square network, in staggered rows, etc., here again with predetermined dimensions and steps.
  • the geometry of the opaque and transparent zones of the mask 50 can be determined as a function of the types of refractive optical elements provided on the closing globe.
  • the screen-printed opaque zones In order not to excessively attenuate the light output of the fire, the screen-printed opaque zones must leave between them transparent uncoated zones 51 of substantial dimensions; for example, the opaque zones may cover around 40 to 60% of the total surface of the sheet.
  • the flexible sheet 50 is mounted in the fire by penetrating, by its upper and lower edges, into two grooves 54, 55 formed respectively in the upper and lower cheeks of the fire, here constituted by horizontal extensions of the reflector 20.
  • the flexible sheet 50 is mounted in the fire by penetrating, by its upper and lower edges, into two grooves 54, 55 formed respectively in the upper and lower cheeks of the fire, here constituted by horizontal extensions of the reflector 20.
  • other methods of attachment are possible within the spirit of the invention.
  • FIG. 2 shows a signaling light according to a second embodiment of the invention.
  • elements or parts identical or similar to those of Figure 1 are designated by the same reference numbers.
  • FIG. 2 represents a corner light, such as a rear flashing light, capable of emitting a light beam not only towards the rear (rays R1 and R2) but also towards the side (radius R3), the reflector 20 comprising two parts 20a, 20b shaped for this purpose.
  • a corner light such as a rear flashing light
  • the flexible screen-printed sheet 50 is fixed in the fire by being attached to the external surface of the balloon 40.
  • the latter is therefore designed so that its external surface is developable, for example cylindrical with circular base or non-circular .
  • the patterns of the opaque zones 52 of the mask 50 are adapted to the refractive optical elements formed on the surface of the globe 30.
  • the globe 30 is constituted by a generally straight rear part 30a, a lateral part 30b also right, and a corner part 30c, bent at about 90 °, joining the parts 30a and 30b.
  • the part rear comprises a set of balls 32a which are arranged to adapt the beam from the homologous part 20a of the reflector to a given photometry.
  • the balls perform an angular dispersion of the beam in a given interval, while ensuring maximum concentration along the optical axis.
  • a geometry of the masking is designed so as not to create interference figures with the balls 32 a.
  • the appearance of the part 30a of the globe, when the fire is out, must not only be relatively homogeneous over its entire surface, but also not vary greatly when the observer moves in front of the fire.
  • the screen-printed patterns 52a homologous to the balls 32a are parallel strips inclined at approximately 45 °.
  • the lateral part 30b of the globe here comprises deflecting prisms 32b for directing a part of the corresponding beam upwards, for example in order to improve the lateral signaling of the vehicle when the observer is near that, and the opaque screen-printed zones 52b of the masking sheet 50 are points, the sizes and spacing steps of which are different from the steps of the prisms 32b.
  • the part 30c of connection between the parts 30a and 30b of the globe comprises vertical ridges intended to give the beam the required angular coverage, of approximately 90 °, in the horizontal direction.
  • the homologous opaque zones 52c of the sheet are here bands horizontal. It can be noted that in general, the eyes of an observer are located well above the light, which means that these horizontal bands will be "decomposed" by the streaks 32c in a vertical direction, to give this region of the light a homogeneity of satisfactory appearance.
  • the density of the opaque masking zones in the various regions of the sheet will be chosen so that, overall, the brightness and the color of the fire are homogeneous over its entire external surface when it is extinguished.
  • the optimization of the opaque patterns of the sheet will advantageously be carried out by successive tests by observing the fire from different points.
  • FIG. 4 shows a flexible screen-printed sheet 50 which is intended to be placed tightly around a cylindrical colored balloon, as shown in FIG. 5.
  • the sheet comprises a circular part 50d intended to form the face of front end of the mask, while a rectangular part 50e will constitute its lateral surface. Between these two parts extends a narrow folding zone 50f.
  • Tabs 54 for example cooperate with slots (not shown) formed in other parts of the sheet and / or the reflector and / or the balloon to secure the mask).
  • any other method of fixing the sheet could be envisaged without departing from the scope of the invention.
  • the flexible masking sheet 50 will very advantageously be obtained by cutting from a continuous screen printed band. The manufacture and handling of the masks will thus be greatly facilitated.
  • the opaque deposit formed by screen printing on the flexible sheet may also have a reflecting character.
  • the same mask in the form of a screen-printed flexible sheet may be used for two or more lights incorporated in the same optical unit.
  • the mask can occupy any desired position in the space between the ball and the globe. It can also be attached to the globe.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Claims (9)

  1. Signalleuchte für Kraftfahrzeuge, von der Art, die geeignet ist, einen farbigen Lichtstrahl abzugeben und im ausgeschalteten Zustand ein im wesentlichen farbloses Aussehen zu haben, enthaltend eine Lampe (10), einen Reflektor (20), eine farblose, transparente Abdeckscheibe (30), einen farbigen, transparenten Kolben (40), rund um die Lampe angeordnet, sowie Abdeckmittel zur Dämpfung der Wahrnehmbarkeit der Farbe des Kolbens bei ausgeschalteter Leuchte, dadurch gekennzeichnet, daß die Abdeckmittel eine biegsame, transparente Folie (50) enthalten, die zu einer entwickelbaren Fläche zwischen Kolben und Scheibe ausgebildet ist, sowie mit transparenten Bereichen (51) sowie opaken Bereichen (52) einer bestimmten Farbe, die durch Siebdruck hergestellt werden.
  2. Signalleuchte nach Anspruch 1, bei der der Reflektor (20) einander gegenüberliegende Backen enthält,dadurch gekennzeichnet, daß die biegsame Folie mit zwei gegenüberliegenden Kanten an den genannten Backen befestigt ist.
  3. Signalleuchte nach Anspruch 1, dadurch gekennzeichnet, daß die biegsame Folie (50) an der Außenfläche des Kolbens (40) angebaut ist.
  4. Signalleuchte nach einem der Ansprüche 1 bis 3, bei der die Abdeckscheibe (30) mehrere Teile (30a, 30b, 30c) enthält, die jeweils mit unterschiedlichen lichtbrechenden optischen Elementen (32a, 32b, 32c) versehen sind, dadurch gekennzeichnet, daß Teile (50a, 50b, 50c) der biegsamen Folie, die den genannten Teilen der Scheibe entsprechen, opake Bereiche (52a, 52b, 52c) von bestimmter, unterschiedlicher Form und Lage entsprechend den genannten optischen Elementen enthalten, so daß die Leuchte im ausgeschalteten Zustand im wesentlichen homogen aussieht.
  5. Signalleuchte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die opaken Bereiche der Folie aus der Gruppe ausgewählt werden, die Streifen und Punkte enthält.
  6. Signalleuchte nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Kolben (40) orangefarben ist und daß er die Blinkfunktion eines Fahrtrichtungsanzeigers erfüllt.
  7. Signalleuchte nach Anspruch 6, dadurch gekennzeichnet, daß die opaken Bereiche (52) eine Farbe zwischen Weiß und Grau aufweisen.
  8. Signalleuchte nach Anspruch 7, dadurch gekennzeichnet, daß sie an einem Scheinwerfer angebaut ist.
  9. Signalleuchte nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die im Siebdruckverfahren hergestellte biegsame Folie aus einem kontinuierlichen Band ausgeschnitten wird.
EP87402936A 1986-12-23 1987-12-21 Farbiges Licht abgebende Signalleuchte mit farbloser Abdeckscheibe, insbesondere für Kraftfahrzeuge Expired - Lifetime EP0274325B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8618041A FR2608734B1 (fr) 1986-12-23 1986-12-23 Feu de signalisation a faisceau colore et globe de fermeture incolore, notamment pour vehicule automobile
FR8618041 1986-12-23

Publications (2)

Publication Number Publication Date
EP0274325A1 EP0274325A1 (de) 1988-07-13
EP0274325B1 true EP0274325B1 (de) 1991-05-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402936A Expired - Lifetime EP0274325B1 (de) 1986-12-23 1987-12-21 Farbiges Licht abgebende Signalleuchte mit farbloser Abdeckscheibe, insbesondere für Kraftfahrzeuge

Country Status (4)

Country Link
EP (1) EP0274325B1 (de)
DE (1) DE3769775D1 (de)
ES (1) ES2022429B3 (de)
FR (1) FR2608734B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033683A1 (de) * 2005-07-19 2007-01-25 Volkswagen Ag Fahrzeugleuchte
WO2020108277A1 (zh) * 2018-11-29 2020-06-04 深圳市绎立锐光科技开发有限公司 光源系统及照明装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0664926B2 (ja) * 1988-06-30 1994-08-22 市光工業株式会社 車両用灯具
FR2763385B1 (fr) * 1997-05-15 1999-08-06 Valeo Vision Feu de signalisation pour vehicule automobile a synthese additive
JP2000195309A (ja) * 1998-12-25 2000-07-14 Koito Mfg Co Ltd 車両用標識灯
IT249749Y1 (it) * 2000-01-27 2003-05-28 Sirrah S R L Lampada per tubi fluorescenti
FR2910857B1 (fr) * 2006-12-27 2009-08-21 Peugeot Citroen Automobiles Sa Bloc optique de vehicule automobile
FR3123413A1 (fr) * 2021-05-31 2022-12-02 Valeo Vision Dispositif lumineux pour véhicule comprenant un film texturé

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047020A (en) * 1975-10-28 1977-09-06 Noren Products, Inc. Disguised emergency light
GB1591013A (en) * 1978-05-30 1981-06-10 Lucas Industries Ltd High contrast lamp assembly
FR2496229A1 (fr) * 1980-12-17 1982-06-18 Frankani Sa Lanterne de signalisation pour vehicule automobile
GB2108256B (en) * 1981-10-09 1985-09-11 Wipac Dev Limited Vehicle lamp
FR2530781A1 (fr) * 1982-07-23 1984-01-27 Cibie Projecteurs Feux notamment destines aux vehicules automobiles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033683A1 (de) * 2005-07-19 2007-01-25 Volkswagen Ag Fahrzeugleuchte
WO2020108277A1 (zh) * 2018-11-29 2020-06-04 深圳市绎立锐光科技开发有限公司 光源系统及照明装置

Also Published As

Publication number Publication date
ES2022429B3 (es) 1991-12-01
FR2608734B1 (fr) 1989-04-28
EP0274325A1 (de) 1988-07-13
FR2608734A1 (fr) 1988-06-24
DE3769775D1 (de) 1991-06-06

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