EP0969246B1 - Phare du type projecteur pour véhicules automobiles - Google Patents

Phare du type projecteur pour véhicules automobiles Download PDF

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Publication number
EP0969246B1
EP0969246B1 EP99111394A EP99111394A EP0969246B1 EP 0969246 B1 EP0969246 B1 EP 0969246B1 EP 99111394 A EP99111394 A EP 99111394A EP 99111394 A EP99111394 A EP 99111394A EP 0969246 B1 EP0969246 B1 EP 0969246B1
Authority
EP
European Patent Office
Prior art keywords
lens
projection type
motor vehicles
headlight
edge region
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
EP99111394A
Other languages
German (de)
English (en)
Other versions
EP0969246A2 (fr
EP0969246A3 (fr
Inventor
Michael Werner
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP0969246A2 publication Critical patent/EP0969246A2/fr
Publication of EP0969246A3 publication Critical patent/EP0969246A3/fr
Application granted granted Critical
Publication of EP0969246B1 publication Critical patent/EP0969246B1/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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • F21S41/55—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses

Definitions

  • the invention relates to a headlight according to the projection type for motor vehicles with one or more light sources, at least one reflector and a lens according to the preamble of claim 1.
  • Headlamps according to the projection type are standard in today's motor vehicle construction.
  • the headlight according to the projection type of a light source which is arranged in the focus of a parabolic reflector.
  • the said lamp i. the luminous element must be kept in accordance with fixed position, this fixed position must be fixed relative to the reflector seen.
  • An adjustment of the lamp element out of focus leads to a defocusing of the actual illumination or of the generated light cone.
  • projection lenses are also necessary for headlamps of this type, which collect the light emerging from the reflector and produce the light cone in a corresponding manner.
  • known bulbs such as a parking light and the like are known to be arranged within the headlamp assembly. It is basically important to use the space within the headlamp assembly compact. A particularly important point is the overall depth, which naturally depends on the geometrical optical parameters such as Parabolfocus and lens diameter and lens curvature so focal length and the like in headlamps of this kind. In order to produce a specific illumination or a specific cone of light, a certain basic depth is always minimal. On the one hand, attempts are made to keep the outer shape of the headlamp small, but this leads to an inappropriate unsightly optical design of the headlamp assembly. In many cases, for structural reasons, the trend is to make the lenses relatively small in diameter. That is, the lenses used are so small that they mislead the viewer regarding the achieved function.
  • the headlamp according to the projection type consists of a converging lens with an annular frame. In essence, this frame has only supporting functions. A further function also optical kind does not apply to this frame.
  • a headlamp for vehicles by the projection type includes a light source, a reflector and a lens.
  • the lens is held in a support member surrounding the lens over at least a portion of its circumference.
  • the carrier element is attached to the front edge of the reflector, then has a frustoconical portion in the light exit direction and finally receives the lens.
  • the lens rests with its edge on a step of the support element
  • the invention is therefore based on the object with space-minimized headlamps of the generic type to achieve an optical magnification of the headlamp design without the length, or the depth as such to enlarge or enlarge.
  • the object is achieved according to the invention in a generic headlight according to the projection type for motor vehicles by the features of claim 1.
  • the headlamp is the optically active, i. directly illuminated lens diameter to a non-optically active or not illuminated and edge integrally formed integrally with the lens edge portion extended.
  • the actual headlamp assembly near the lens area appears enlarged, although no larger lens is used.
  • optical magnification but no element is used, which requires a larger space.
  • the essence of the invention consists essentially in the fact that the optical magnification is accomplished by an element which is present anyway in the space of the headlamp and necessary, but is now designed and placed so that it fulfills the above purpose.
  • the lens edge region can also serve for ambient illumination and for optical enlargement of the lens as such.
  • an optically non-active non-illuminated edge region is formed by over-dimensioning the lens diameter.
  • the lens body is so far oversized in terms of its diameter, but that it still fits into the given space, so this is not necessarily increased, because the diameter used only has a focal length condition.
  • the optically non-active edge region thus has no reference to the focal length.
  • the over-dimensioned lens in this way is not illuminated over the entire area, so that the non-illuminated edge area only serves the optical magnification of the lens diameter and thus the headlight optics or the headlamp design. It can be radiated over the said edge area and residual light, but this is not mandatory.
  • the illustrations show the headlamps in side view, whereby only the affected elements are shown.
  • FIG. 1 shows a headlight in which behind a headlight lens 20 around the actual projection lens 1 around in a corresponding orientation a circular ring element 2a is arranged.
  • This annular element 2a is largely parallel to the lens base surface and also visually coated or colored accordingly, so that this results in an apparent increase in the lens diameter and thus the design of the vehicle headlamp.
  • the annular element can, as shown in FIG. 1, be attached to the edge of the lens. Before that, another conventional cover element 10 can be arranged.
  • FIG. 2 shows a headlamp in which the already existing cover element 10 of the lens 1 in the area around the lens is shaped correspondingly largely parallel to the lens base area, and likewise in the form of an annular area 2b.
  • a corresponding coating in the affected annular area then provides for an optically enlarged diameter of the lens and thus an optically enlarged design without the additional space would be necessary because said elements are arranged anyway in the headlight.
  • FIG 3 shows a headlamp according to the invention with a lens 1, which itself has a likewise annular edge contour 2c.
  • This annular and integrally formed edge molding 2c of the projection lens 1 serves to illuminate the environment. That is, this edge portion merely radiates out the unfocused scattered light around the lens.
  • projection lenses of this type also have the signal image function which results from the fact that the inner lens area forms the highly concentrated projection light cone and the outer edge area illuminates a diffuse area weakened in brightness, which provides the oncoming traffic with a glare-free signal image.
  • lenses of this type also result in an optical enlargement of the lens surface, which also fulfills the stated purpose.
  • FIG. 4 shows a headlight according to the invention in which an oversized lens 1 is used.
  • the lens cut and the corresponding projection plane and projection parameters of the reflector mirror are dimensioned so to the lens that only an inner portion of the lens is used directly.
  • the oversized edge region 2c serves only the optical magnification of the headlight design. Also, this design does not increase the length or depth in the headlight, because in this front area and larger lenses accordingly Have space available. The depth, however, is greater to realize a better look.
  • the optics i. the cut of the lens in said used core area is again dimensioned exactly to the entire geometric dimension.

Landscapes

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

Claims (3)

  1. Phare du type projecteur pour véhicules automobiles, avec un ou plusieurs moyens d'éclairage, au moins un réflecteur et au moins une lentille (1), caractérisé en ce que le diamètre optiquement actif, directement éclairé de la lentille est accru d'une région de bord de lentille (2c, 2d) optiquement non active, non directement éclairée par la lumière focale et formée d'un seul tenant sur le bord de la lentille.
  2. Phare du type projecteur pour véhicules automobiles selon la revendication 1, caractérisé en ce que la région de bord (2c, 2d) de la lentille sert à l'éclairage du champ périphérique et au grossissement optique.
  3. Phare du type projecteur pour véhicules automobiles selon la revendication 1 ou 2, caractérisé en ce que la région de bord de lentille (2d) optiquement non active, non éclairée, est formée par un surdimensionnement du diamètre de la lentille.
EP99111394A 1998-07-01 1999-06-11 Phare du type projecteur pour véhicules automobiles Expired - Lifetime EP0969246B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829343 1998-07-01
DE19829343A DE19829343A1 (de) 1998-07-01 1998-07-01 Scheinwerferanordnung nach dem Projektionstyp für Kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0969246A2 EP0969246A2 (fr) 2000-01-05
EP0969246A3 EP0969246A3 (fr) 2001-10-17
EP0969246B1 true EP0969246B1 (fr) 2007-04-11

Family

ID=7872596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111394A Expired - Lifetime EP0969246B1 (fr) 1998-07-01 1999-06-11 Phare du type projecteur pour véhicules automobiles

Country Status (3)

Country Link
EP (1) EP0969246B1 (fr)
AT (1) ATE359482T1 (fr)
DE (2) DE19829343A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038999A1 (de) 2008-08-21 2010-02-25 Hella Kgaa Hueck & Co. Projektionslinse für einen Scheinwerfer eines Kraftfahrzeugs

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011090B4 (de) * 2004-03-06 2007-01-04 Daimlerchrysler Ag Scheinwerfer für Fahrzeuge
DE102006060141A1 (de) 2006-12-18 2008-06-26 Docter Optics Gmbh Scheinwerferlinse für einen Kraftfahrzeugscheinwerfer
DE102010061460A1 (de) * 2010-12-22 2012-06-28 Hella Kgaa Hueck & Co. Projektionsmodul für Fahrzeugscheinwerfer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1393573A (en) * 1920-10-21 1921-10-11 John A Ritter Headlamp
DE1009506B (de) * 1956-04-30 1957-05-29 Westfaelische Metall Industrie Kraftfahrzeugscheinwerfer
US3082320A (en) * 1959-05-01 1963-03-19 Singer Mfg Co Lighting fixtures
FR2550847B1 (fr) * 1983-08-18 1988-07-01 Cibie Projecteurs Projecteur a reflecteur elliptique et a faisceau coupe, pour vehicule automobile
DE3516813A1 (de) * 1985-05-10 1986-11-13 Hella KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
DE3640773A1 (de) * 1986-11-28 1988-06-09 Hella Kg Hueck & Co Scheinwerfer fuer fahrzeuge nach dem projektionsprinzip
AT398337B (de) * 1988-04-27 1994-11-25 Zizala Lichtsysteme Gmbh Fahrzeugscheinwerfer
DE19621254B4 (de) * 1996-05-25 2007-07-12 Automotive Lighting Reutlingen Gmbh Fahrzeugscheinwerfer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008038999A1 (de) 2008-08-21 2010-02-25 Hella Kgaa Hueck & Co. Projektionslinse für einen Scheinwerfer eines Kraftfahrzeugs

Also Published As

Publication number Publication date
DE19829343A1 (de) 2000-01-05
DE59914287D1 (de) 2007-05-24
EP0969246A2 (fr) 2000-01-05
ATE359482T1 (de) 2007-05-15
EP0969246A3 (fr) 2001-10-17

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