EP0639740A1 - Kfz-Signalleuchte - Google Patents

Kfz-Signalleuchte 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
Authority
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
Other languages
English (en)
French (fr)
Other versions
EP0639740B1 (de
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/de
Application granted granted Critical
Publication of EP0639740B1 publication Critical patent/EP0639740B1/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
    • F21S43/40—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.

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 Kfz-Signalleuchte Expired - Lifetime EP0639740B1 (de)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=9449390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401553A Expired - Lifetime EP0639740B1 (de) 1993-07-20 1994-07-06 Kfz-Signalleuchte

Country Status (4)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704267A1 (de) * 1996-02-23 1997-09-04 Valeo Vision Signalleuchte mit verbesserten Mitteln zur Streuung des Lichts
DE19737550A1 (de) * 1996-09-18 1998-03-19 Valeo Vision Signalleuchte mit verbesserter Lampenabdeckung für Kraftfahrzeuge
DE19737549A1 (de) * 1996-09-20 1998-03-26 Valeo Vision Signalleuchte mit einem Spiegel mit gerillter Oberfläche
EP0889284A2 (de) 1997-07-01 1999-01-07 Hella KG Hueck & Co. Leuchte für Fahrzeuge
DE19844594A1 (de) * 1998-09-29 2000-05-11 Hella Kg Hueck & Co Leuchte für Kraftfahrzeuge
EP0915286A3 (de) * 1997-11-05 2001-02-07 Ford Motor Company Fahrzeug-Heckleuchte

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (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
FR2107896A1 (de) * 1970-09-23 1972-05-12 Gen Motors Corp
EP0081361A1 (de) * 1981-12-08 1983-06-15 LUCAS INDUSTRIES public limited company Leuchte

Patent Citations (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
FR2107896A1 (de) * 1970-09-23 1972-05-12 Gen Motors Corp
EP0081361A1 (de) * 1981-12-08 1983-06-15 LUCAS INDUSTRIES public limited company Leuchte

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704267A1 (de) * 1996-02-23 1997-09-04 Valeo Vision Signalleuchte mit verbesserten Mitteln zur Streuung des Lichts
US5945916A (en) * 1996-02-23 1999-08-31 Valeo Vision Indicator light with improved light spreading means
DE19737550A1 (de) * 1996-09-18 1998-03-19 Valeo Vision Signalleuchte mit verbesserter Lampenabdeckung für Kraftfahrzeuge
DE19737549A1 (de) * 1996-09-20 1998-03-26 Valeo Vision Signalleuchte mit einem Spiegel mit gerillter Oberfläche
EP0889284A2 (de) 1997-07-01 1999-01-07 Hella KG Hueck & Co. Leuchte für Fahrzeuge
EP0915286A3 (de) * 1997-11-05 2001-02-07 Ford Motor Company Fahrzeug-Heckleuchte
DE19844594A1 (de) * 1998-09-29 2000-05-11 Hella Kg Hueck & Co Leuchte für Kraftfahrzeuge

Also Published As

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

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