EP0639740B1 - Feu de signalisation de véhicules automobiles - Google Patents

Feu de signalisation de véhicules automobiles Download PDF

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Publication number
EP0639740B1
EP0639740B1 EP94401553A EP94401553A EP0639740B1 EP 0639740 B1 EP0639740 B1 EP 0639740B1 EP 94401553 A EP94401553 A EP 94401553A EP 94401553 A EP94401553 A EP 94401553A EP 0639740 B1 EP0639740 B1 EP 0639740B1
Authority
EP
European Patent Office
Prior art keywords
reflector
serrations
motor vehicles
cylindrical lenses
vehicles according
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
EP94401553A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0639740A1 (fr
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
Original Assignee
Compagnie dEquipements Automobiles Axo Scintex SA
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 Compagnie dEquipements Automobiles Axo Scintex SA filed Critical Compagnie dEquipements Automobiles Axo Scintex SA
Publication of EP0639740A1 publication Critical patent/EP0639740A1/fr
Application granted granted Critical
Publication of EP0639740B1 publication Critical patent/EP0639740B1/fr
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
    • F21S43/40—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. 1,054,934 which comprises a parabolic reflector having, on its surface, large convex waves, the reflector being closed by a window having, on its internal face, small cylindrical lenses spaced apart from one another. other.
  • Such a fire has various drawbacks. Indeed, the waves are visible from the outside which is unsightly, moreover the light does not present, lit, a luminous homogeneity, this is due to the fact that the cylindrical lenses are small and separated from each other by flat areas of so that, if in line with the cylindrical lenses, the rays are concentrated in the flat areas, these are scattered in all directions, this effect being further increased by the large dimension of the waves compared to the cylindrical lenses.
  • 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 of which the face, facing the reflector, is provided with parallel cylindrical lenses extending in a direction orthogonal to the reliefs, said light being characterized in that the reliefs of the reflector are constituted by a series of parallel ridges having a width of of the order of 0.5 mm, while the parallel cylindrical lenses adjoin each other without leaving any space between them and have dimensions greater than those of 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP94401553A 1993-07-20 1994-07-06 Feu de signalisation de véhicules automobiles Expired - Lifetime EP0639740B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9308863 1993-07-20
FR9308863A FR2708081B1 (fr) 1993-07-20 1993-07-20 Feu de signalisation de véhicules automobiles.

Publications (2)

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

Family

ID=9449390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401553A Expired - Lifetime EP0639740B1 (fr) 1993-07-20 1994-07-06 Feu de signalisation de véhicules automobiles

Country Status (4)

Country Link
EP (1) EP0639740B1 (es)
DE (1) DE69403404T2 (es)
ES (1) ES2102787T3 (es)
FR (1) FR2708081B1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2745365B1 (fr) * 1996-02-23 1998-05-07 Valeo Vision Feu de signalisation a moyens perfectionnes d'etalement de la lumiere
FR2753521B1 (fr) * 1996-09-18 1998-12-04 Valeo Vision Feu de signalisation a cache de lampe perfectionne pour vehicule automobile
FR2753776B1 (fr) * 1996-09-20 1998-12-11 Feu de signalisation a miroir a surface a stries
DE19727982A1 (de) 1997-07-01 1999-01-07 Hella Kg Hueck & Co Leuchte für Fahrzeuge
US5954427A (en) * 1997-11-05 1999-09-21 Ford Motor Company Automotive tail lamp with large rake angle
DE19844594A1 (de) * 1998-09-29 2000-05-11 Hella Kg Hueck & Co Leuchte für Kraftfahrzeuge
DE19951407A1 (de) * 1999-10-26 2001-05-03 Hella Kg Hueck & Co Kraftfahrzeugleuchte
FR3005717A1 (fr) * 2013-05-14 2014-11-21 Peugeot Citroen Automobiles Sa Dispositif d'eclairage a eclairement et couleur homogenes
DE102020108010A1 (de) 2020-03-24 2021-09-30 Bayerische Motoren Werke Aktiengesellschaft Beleuchtungsvorrichtung für ein Kraftfahrzeug
JP7496765B2 (ja) * 2020-11-25 2024-06-07 株式会社小糸製作所 車両用灯具

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1054934B (de) * 1954-08-03 1959-04-16 Westfaelische Metall Industrie Kraftfahrzeug-Signalleuchte
GB1369624A (en) * 1970-09-23 1974-10-09 Gen Motors Corp Faceted reflector for a lighting unit and method of making same
EP0081361A1 (en) * 1981-12-08 1983-06-15 LUCAS INDUSTRIES public limited company Lamp

Also Published As

Publication number Publication date
DE69403404T2 (de) 1997-09-18
FR2708081B1 (fr) 1995-09-01
DE69403404D1 (de) 1997-07-03
FR2708081A1 (fr) 1995-01-27
ES2102787T3 (es) 1997-08-01
EP0639740A1 (fr) 1995-02-22

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