EP0071583B1 - Lampe indicatrice de direction pour l'avant de véhicules - Google Patents

Lampe indicatrice de direction pour l'avant de véhicules Download PDF

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Publication number
EP0071583B1
EP0071583B1 EP82830208A EP82830208A EP0071583B1 EP 0071583 B1 EP0071583 B1 EP 0071583B1 EP 82830208 A EP82830208 A EP 82830208A EP 82830208 A EP82830208 A EP 82830208A EP 0071583 B1 EP0071583 B1 EP 0071583B1
Authority
EP
European Patent Office
Prior art keywords
reflector
indicator lamp
direction indicator
light source
transparent element
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
Application number
EP82830208A
Other languages
German (de)
English (en)
Other versions
EP0071583A1 (fr
Inventor
Giovanni Muraca
Gianfranco Mora
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.)
Fiat Auto SpA
Original Assignee
Fiat Auto SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fiat Auto SpA filed Critical Fiat Auto SpA
Publication of EP0071583A1 publication Critical patent/EP0071583A1/fr
Application granted granted Critical
Publication of EP0071583B1 publication Critical patent/EP0071583B1/fr
Expired 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 to a direction indicator lamp for motor vehicles adapted to emit a beam of coloured light.
  • the invention is concerned with a lamp comprising a casing which is closed at the front by a colourless transparent element, the casing housing:
  • DE-B-1 259 747 discloses a direction indicator lamp of the above described type, in which the central opaque disc is applied directly onto the transparent element and the annular screening element is disposed in the transversal plane which contains the front focal point of the reflector.
  • the central opening of the annular element is necessarily very small.
  • This known lamp is affected by the following drawbacks.
  • the central opaque disc applied onto the transparent element tends to create a cone of shade in the light beam which comes out through the transparent element.
  • the transparent element In order to eliminate this shading effect the transparent element must be adequately shaped, e.g. in form of a Fresnel lens.
  • the present invention provides a direction indicator lamp according to the appended claim 1.
  • the central opaque disc is located far from the transparent element and cannot be therefore distinctly seen therethrough when the light source is off.
  • the reflector directs coloured light rays also in directions extending into or through the cone which would be otherwise shaded if the light source were perfectly punctiform.
  • the screening structure of the direction indicator lamp according to the invention allows a substantial portion of those rays pass through the transparent element, thereby lessening the shading effect of the central disc.
  • the casing 1 of a front direction indicator lamp for motor vehicles is closed at the front by a colourless transparent element 2.
  • the casing 1 is closed at the rear by a closure element 3 secured by screws 4 with the interposition of a sealing gasket 5.
  • the casing 1 contains an ellipsoidal reflector, generally indicated 6, having focal points F1, F2 respectively.
  • the ellipsoidal reflector 6 is formed by a main part 7 which is moulded from transparent plastics material coloured according to the colour of the light, for example yellow, which must be emitted by the indicator lamp in accordance with current regulations.
  • the external surface of the part 7 has a reflective layer 8 which is applied by metallization or lacquering.
  • the ellipsoidal reflector 6 is provided with a tubular projection 9 at the rear, enabling it to be fixed to the casing 1.
  • the closure element 3 is provided with a tubular projection 10 which serves as a support for a bulb 11 the filament of which is in correspondence with the rear focal point F1 of the ellipsoidal reflector 6.
  • a screen is fixed to the front edge 6a of the ellipsoidal reflector 6 and comprises a frusto- conical element 12 which converges towards the transparent element 2, a flat annular element 13 which lies in a plane perpendicular to the line passing through the two focal points F1, F2, and a central disc 15 carried by three inclined rods 14 on the internal edge of the annular element 13.
  • the disc 15 has a diameter less than the internal diameter of the annular wall 13 and lies in a plane substantially coincident with that of the edge 6a of the reflector 6.
  • the parts 12, 13, 14, 15 are conveniently made in a single piece by moulding from a white opaque plastics material, and form a screen which allows only those rays emitted by the bulb 11 which are reflected by the reflector 6 and coloured by passing through the part 7 acting as a filter, to pass towards the transparent element.
  • the rays emitted by the bulb 11 directly towards the transparent element 2, however, are intercepted by the screen, which also serves to substantially prevent the coloured internal surface of the reflector 6 from being seen from the exterior, particularly by anyone observing the lamp along the line joining the focal points F1, F2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (4)

1. Lampe indicatrice de direction pour véhicules automobiles réalisée de manière à émettre un faisceau de lumière colorée, comprenant un boîtier (1) qui est fermé à l'avant par un élément transparent incolore (2), le boîtier contenant: un réflecteur (6) en forme de cuvette, sensiblement ellipsoïdal, dont le bord (6a) fait face à l'élément transparent (2); une source de lumière (11) placée au foyer arrière (F1) du réflecteur (6); un filtre coloré (7) appliqué sur la surface interne du réflecteur (6) pour donner la couleur désirée aux rayons de lumière émis par la source de lumière (11); et des moyens formant écran (12, 13, 15) placés entre le réflecteur (16) et l'élément transparent (2), qui comprennent un élément opaque annulaire (13) monté transversalement par rapport a l'axe interfocal du réflecteur (6) et entourant cet axe, et un disque central opaque (15) monté coaxialement audit axe interfocal, pour empêcher sensiblement que le filtre coloré (7) ne soit vu de l'extérieur et pour empêcher les rayons directs émis par la source de lumière (11) d'atteindre l'élément transparent (2), caractérisée en ce que ledit élément annulaire (13) est monté entre les foyers (F1, F2) du réflecteur (6) et que le disque central opaque (15) est monté entre l'élément annulaire (13) et la source de lumière (11).
2. Une lampe indicatrice de direction selon la revendication 1, caractérisée en ce que le disque central opaque (10) présente un diamètre inférieur au diamètre intérieur de l'élément annulaire (12, 13).
3. Une lampe indicatrice de direction selon la revendication 1 ou 2, caractérisée en ce que le disque central opaque (15) est relié au bord intérieur de l'élément annulaire (13) par des barres de support (14).
4. Une lampe indicatrice de direction selon la revendication 3, caractérisée en ce que l'élément annulaire (13), lesdites barres de support (14) et le disque central opaque (15) sont réalisés en une seule pièce.
EP82830208A 1981-07-31 1982-07-16 Lampe indicatrice de direction pour l'avant de véhicules Expired EP0071583B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT6808081 1981-07-31
IT8168080A IT1144616B (it) 1981-07-31 1981-07-31 Fanale anteriore indicatore di direzione per autoveicoli

Publications (2)

Publication Number Publication Date
EP0071583A1 EP0071583A1 (fr) 1983-02-09
EP0071583B1 true EP0071583B1 (fr) 1985-01-16

Family

ID=11307689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830208A Expired EP0071583B1 (fr) 1981-07-31 1982-07-16 Lampe indicatrice de direction pour l'avant de véhicules

Country Status (4)

Country Link
EP (1) EP0071583B1 (fr)
DE (1) DE3261952D1 (fr)
ES (1) ES266523Y (fr)
IT (1) IT1144616B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3362900D1 (en) * 1982-06-19 1986-05-15 Britax Vega Ltd Vehicle lamp assembly
EP0098062B1 (fr) * 1982-06-24 1986-04-09 Britax Vega Limited Feu pour véhicule
IT1224039B (it) * 1988-12-29 1990-09-26 Carello Spa Fanale di segnalazione per veicoli
DE19511164A1 (de) * 1995-03-28 1996-10-02 Teves Gmbh Alfred Fahrzeugleuchte mit Freiformflächenreflektor und brillanter transparenter Abdeckscheibe
JP3155935B2 (ja) * 1997-05-21 2001-04-16 株式会社小糸製作所 車両用灯具
DE19820656A1 (de) 1998-05-08 1999-11-11 Hella Kg Hueck & Co Mehrkammerleuchte für Fahrzeuge
DE19916843B4 (de) * 1999-04-14 2008-05-08 Volkswagen Ag Fahrzeugleuchte
DE19950700A1 (de) * 1999-10-21 2001-04-26 Volkswagen Ag Heckleuchte mit Farbscheibe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198014A (en) * 1937-07-22 1940-04-23 Harry G Ott Optical system
DE1259747B (de) * 1962-07-24 1968-01-25 Elastic Stop Nut Corp Anordnung zum Verhindern von Phantomlicht in einer Signallichtanlage fuer Automobileod. dgl.

Also Published As

Publication number Publication date
IT1144616B (it) 1986-10-29
ES266523Y (es) 1983-07-16
EP0071583A1 (fr) 1983-02-09
DE3261952D1 (en) 1985-02-28
ES266523U (es) 1983-02-01
IT8168080A0 (it) 1981-07-31

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