EP0472890B1 - Mehrkammerleuchte für Kraftfahrzeuge - Google Patents

Mehrkammerleuchte für Kraftfahrzeuge Download PDF

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Publication number
EP0472890B1
EP0472890B1 EP91112094A EP91112094A EP0472890B1 EP 0472890 B1 EP0472890 B1 EP 0472890B1 EP 91112094 A EP91112094 A EP 91112094A EP 91112094 A EP91112094 A EP 91112094A EP 0472890 B1 EP0472890 B1 EP 0472890B1
Authority
EP
European Patent Office
Prior art keywords
shaped
barrel
lines
cylinder
triple prisms
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
EP91112094A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0472890A1 (de
Inventor
Wolfgang Bode
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0472890A1 publication Critical patent/EP0472890A1/de
Application granted granted Critical
Publication of EP0472890B1 publication Critical patent/EP0472890B1/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
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255

Definitions

  • a multi-chamber lamp for motor vehicles is known, the lines of which alternate with triple prisms and lines reflecting external light rectangular barrel-shaped scattering elements, which have the same dimensions in their row height. These height dimensions of the rows continue over the lens sections of the neighboring chambers and should enable a sufficient light yield in the case of a line structure of the optics which is supported in the area of the brake light and the rear fog lamp by an upstream optical disk, the light being directed onto the corresponding barrel-shaped scattering elements is projected.
  • a small installation depth of the lamp chamber is necessary, which should avoid the use of an optics disc upstream of the lens and still apply the radiation values prescribed by law.
  • Such an optical disk has a light-reducing effect and increases manufacturing costs.
  • the usual upstream optical lens can also be omitted in the bright rear fog lamp, since the optically effective surfaces of the circular cone, especially in the vertical radiation plane in the range of + 5 ° and -5 °, reinforce the range for this area Bring the radiation values required by law.
  • the circular cone adjoins the tapered end of a truncated cone, as a result of which there is a better removal of the lens from the molding tool.
  • FIG. 1 shows the detail of the lens of a chamber from a multi-chamber lamp shown in FIG. 5, the lines labeled (1) representing barrel-shaped or cylindrical lenses (3), the lines labeled (2) representing the circular cones (4) ) and the lines labeled (11) the triple prisms (12).
  • the circular cones (4) adjoin each other with flats (5), each making up about 1/4 of the base diameter of the circular cone, so that the greatest optical effectiveness is achieved in the vertical radiation of the light. From the vertical section A-A shown in FIG. 2, the surface profile of the barrel-shaped or cylindrical lenses (3) can be seen compared to the circular-conical scattering elements (4).
  • the course of the rays shows that the parallel rays (6 and 7) coming from the reflector fall on the obtuse-angled surfaces (10) of the circular cone (4) of the angle ( ⁇ ⁇ 148 °) and through them behind the lens, based on the optical axis ( X) at + 5 ° upwards and -5 ° downwards.
  • the parallel beams (8 and 9), which fall on the barrel-shaped or cylindrical lenses (3), on the other hand, are fanned out behind the lens so that they fill an angle of 7.5 ° around the optical axis (Y) and thus fill in Connection with the circular conical scattering elements (4) meet the radiation values for intensity and angle required by ECE regulation.
  • FIG. 2 clearly shows that the circular-conical scattering elements (4) primarily have the task of supplementing the radiation values of the barrel-shaped or cylindrical lenses (3) in the vertical radiation plane and of intensifying them particularly in the area near the lamp.
  • a circular cone (4) greatly enlarged in FIG. 4 shows the different slope angles ( ⁇ ⁇ 16 °) of the circular cone (4) and ( ⁇ ) of the truncated cone (11).
  • the slope angle ( ⁇ ) of the truncated cone is primarily between 70 ° and 90 ° in order to facilitate the molding process of the lens after the injection molding process.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP91112094A 1990-08-10 1991-07-19 Mehrkammerleuchte für Kraftfahrzeuge Expired - Lifetime EP0472890B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4025393A DE4025393C1 (enrdf_load_stackoverflow) 1990-08-10 1990-08-10
DE4025393 1990-08-10

Publications (2)

Publication Number Publication Date
EP0472890A1 EP0472890A1 (de) 1992-03-04
EP0472890B1 true EP0472890B1 (de) 1994-06-29

Family

ID=6412018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112094A Expired - Lifetime EP0472890B1 (de) 1990-08-10 1991-07-19 Mehrkammerleuchte für Kraftfahrzeuge

Country Status (3)

Country Link
EP (1) EP0472890B1 (enrdf_load_stackoverflow)
DE (1) DE4025393C1 (enrdf_load_stackoverflow)
ES (1) ES2055493T3 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685440A1 (fr) * 1991-12-20 1993-06-25 Valeo Vision Glace pour dispositif optique de signalisation equipee d'elements pseudo-catadioptriques.
EP0990838A2 (de) 1998-09-29 2000-04-05 Hella KG Hueck & Co. Leuchte für Kraftfahrzeuge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4324037B4 (de) * 1993-07-17 2006-07-13 Itt Automotive Europe Gmbh Signalleuchte, insbesondere für Kraftfahrzeuge
FR2733949B1 (fr) * 1995-05-09 1997-08-01 Valeo Vision Feu de signalisation multifonctions pour vehicule automobile, equipe d'elements catadioptriques et pseudo-catadioptriques
DE10037007A1 (de) * 2000-07-29 2002-03-07 Hella Kg Hueck & Co Leuchte und Verfahren zur Herstellung eines Rückstrahlers für eine Leuchte

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590357A (en) * 1945-04-18 1947-07-15 Gen Electric Co Ltd Improvements in and relating to lighting fittings
DE933563C (de) * 1953-11-05 1955-09-29 Westland Gummiwerke G M B H Reflektor fuer Strassenfahrzeuge
DE6908341U (de) * 1969-03-01 1969-06-12 Siemens Ag Lichtdurchlaessige abdeckung fuer leuchten
US4332438A (en) * 1979-03-23 1982-06-01 Lucas Industries Limited Lens element
DE3305218C2 (de) * 1983-02-16 1986-03-20 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Mehrkammerleuchte für Kraftfahrzeuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685440A1 (fr) * 1991-12-20 1993-06-25 Valeo Vision Glace pour dispositif optique de signalisation equipee d'elements pseudo-catadioptriques.
EP0549423A1 (fr) * 1991-12-20 1993-06-30 Valeo Vision Glace pour dispositif optique de signalisation équipée d'éléments pseudo-catadioptriques
EP0990838A2 (de) 1998-09-29 2000-04-05 Hella KG Hueck & Co. Leuchte für Kraftfahrzeuge

Also Published As

Publication number Publication date
ES2055493T3 (es) 1994-08-16
DE4025393C1 (enrdf_load_stackoverflow) 1992-01-09
EP0472890A1 (de) 1992-03-04

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