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EP0974786B1 - Phare du type projecteur pour véhicules - Google Patents

Phare du type projecteur pour véhicules

Info

Publication number
EP0974786B1
EP0974786B1 EP99111395A EP99111395A EP0974786B1 EP 0974786 B1 EP0974786 B1 EP 0974786B1 EP 99111395 A EP99111395 A EP 99111395A EP 99111395 A EP99111395 A EP 99111395A EP 0974786 B1 EP0974786 B1 EP 0974786B1
Authority
EP
European Patent Office
Prior art keywords
reflector
projection
lens
lamp
reflection
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
EP99111395A
Other languages
German (de)
English (en)
Other versions
EP0974786A3 (fr
EP0974786A2 (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 EP0974786A2 publication Critical patent/EP0974786A2/fr
Publication of EP0974786A3 publication Critical patent/EP0974786A3/fr
Application granted granted Critical
Publication of EP0974786B1 publication Critical patent/EP0974786B1/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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
    • F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
    • 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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors

Definitions

  • the invention relates to a projection system for a motor vehicle with at least one lamp or lamp filament, a reflector system and a projection lens according to claim 1, see e.g. DE 4036031 C.
  • Headlight assemblies for motor vehicles are known in various ways. Nearly all headlamp assemblies for motor vehicles contain two different reflectors for dipped and main beam. The two reflectors mentioned are either arranged side by side in a common headlight housing, or arranged in two separate headlight housings. In both cases, namely the quasi side-by-side arrangement of the reflectors, two light sources or two lamps are also necessary.
  • the provision of low beam and high beam is required by law.
  • the high beam In its geometrical positioning between the light source and the respective reflector, the high beam generates an intense light cone directed across the roadway for illuminating both the roadway and the roadway surroundings in front of the motor vehicle.
  • the said low beam generated in its positioning on the one hand between the lamp and reflector and of course the reflector based on the headlight geometry a cone of light that is directed exclusively at the road and thus has a much shorter range.
  • the so-called dimming of said light on the road should prevent dazzling oncoming traffic.
  • the so-called high beam As soon as the driver visibly approaches a vehicle on the oncoming lane, he switches to low beam to prevent dazzling the oncoming driver.
  • headlight assemblies are known in which two separate light sources are integrated in a common halogen lamp. This said halogen lamp is then assigned to a common reflector. Now changes the driver between dipped beam and high beam, in the manner described above, so only between the two lamp filaments, d. H. the said two light sources switched in the common halogen lamp.
  • this construction described has the advantage that no longer two juxtaposed reflectors are necessary, but that the same function is represented by a common single reflector. This has the consequence that much smaller space in the headlight housing are needed.
  • the two illumination methods are represented by a common reflector because they actually require different reflector geometries. In this respect, such an arrangement is merely a compromise between luminous efficacy and space considerations. The disadvantage, of course, that the luminous efficacy decreases significantly with this quasi-compromise solution, since the reflector can not be optimized for both illumination methods simultaneously.
  • headlight assemblies are known by the so-called projection system.
  • a projection lens is used in particular for generating the high beam, in which the optics in particular the yield of available direct light is significantly increased.
  • Projection lenses are known which have differently ground zones, so that both the dipped beam and the main beam are generated according to the projection type.
  • the invention is therefore the object of developing a headlamp assembly of the generic type such that both the low beam, and the high beam is generated in an efficient manner and directed directed in a corresponding manner and, moreover, the required space is kept compact.
  • the essence of the invention is firstly that two reflector systems are used even in a headlight assembly according to the projection type, namely one for the normal reflection system and the other reflector for the projection system.
  • the projection lens is fixed relative to the reflector of the reflection system.
  • the projection lens is not fixed relative to the reflector of the projection system, but is stationary relative to the reflector of the reflection system.
  • the essential advantage here is that on the one hand, the series arrangement of two reflectors with a common, the two reflectors at a suitable overlapping to each other opening passing, and that exactly such a double reflector system arrangement according to the projection type, d. H. works with a projection lens.
  • said projection lens only collects the light from the projection reflector.
  • the projection reflector is displaceable. That is, not the lens is displaceable together with the projection reflector, but the lens is fixed relative to the reflection reflector and relative to the projection reflector moves. Likewise, an otherwise possible displacement movement of the lamp can be omitted.
  • the lamp, the two reflectors and the lens arranged in alignment on a common optical axis.
  • the relative local strength of the individual elements such as lens and reflection reflector to each other can be done in a preferred embodiment of the invention by a rigid connection.
  • This rigid connection can be given by fixing on a common holding element.
  • This means that the said lens and the reflection reflector are arranged on a common holding frame or holding element.
  • FIG. 1 shows the invention only in its essential elements.
  • the essential elements are the reflection reflector 10, the projection reflector 20, and the lamp 1 and the lens 30.
  • the larger diameter reflection reflector 10 is arranged so that within the same smaller, also parabolic projection reflector 20th Takes place.
  • openings are arranged through which the lamp 1 or the lamp vessel passes.
  • the lens 30 is now positioned at a corresponding distance so that it collects the light reflected from the lamp 1 onto the reflector surface of the projection reflector 20, but not the reflection light of the reflection reflector 10.
  • the arrangement according to the invention is not only functionally advantageous, but it also fulfills the task, keeping the space unaffected compact.
  • Figures 2 and 3 contain only two embodiments of the prior art, which are deliberately avoided with the invention.
  • Figure 2 shows the mobility of the projection reflector, but with the projection lens moves. This leads to a final stroke movement of the lens 30, which protrudes beyond the actually required space in a corresponding position.
  • FIG. 3 shows another possibility in FIG. 3, but due to the movability of the lamp itself, the installation space to the rear must be correspondingly large. This means that even with this design, an increase in the installation space would be the result.

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 (4)

  1. Arrangement projecteur selon le principe de la projection pour un véhicule automobile, comprenant au moins une lampe ou un filament de lampe (1), un système réflecteur et une lentille de projection (30), un réflecteur (10) étant prévu pour le système de réflexion et un réflecteur (20) supplémentaire pour le système de projection, caractérisé en ce que seul le réflecteur (20) du système de projection peut se déplacer le long de l'axe optique et la lentille de projection (30) est fixe par rapport au réflecteur (10) du système de réflexion.
  2. Arrangement projecteur selon le principe de la projection selon la revendication 1, caractérisé en ce que la lampe (1), les deux réflecteurs (10, 20) ainsi que la lentille (30) sont disposés alignés sur un axe optique commun.
  3. Arrangement projecteur selon le principe de la projection selon la revendication 2, caractérisé en ce que la lentille (30) est reliée de manière rigide avec le réflecteur (10) du système de réflexion.
  4. Arrangement projecteur selon le principe de la projection selon la revendication 3, caractérisé en ce que la liaison rigide du réflecteur (10) et de la lentille (30) est réalisée par une fixation sur un élément de maintien commun.
EP99111395A 1998-07-18 1999-06-11 Phare du type projecteur pour véhicules Expired - Lifetime EP0974786B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19832466 1998-07-18
DE19832466A DE19832466A1 (de) 1998-07-18 1998-07-18 Scheinwerferanordnung nach dem Profjektionstyp für ein Kraftfahrzeug

Publications (3)

Publication Number Publication Date
EP0974786A2 EP0974786A2 (fr) 2000-01-26
EP0974786A3 EP0974786A3 (fr) 2001-09-26
EP0974786B1 true EP0974786B1 (fr) 2006-08-16

Family

ID=7874605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99111395A Expired - Lifetime EP0974786B1 (fr) 1998-07-18 1999-06-11 Phare du type projecteur pour véhicules

Country Status (3)

Country Link
EP (1) EP0974786B1 (fr)
AT (1) ATE336692T1 (fr)
DE (2) DE19832466A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004259541A (ja) 2003-02-25 2004-09-16 Cateye Co Ltd 照明器具
DE10353087A1 (de) * 2003-11-13 2005-06-16 Bayerische Motoren Werke Ag Fahrzeugleuchte
DE102006047837A1 (de) * 2006-10-10 2008-04-17 Volkswagen Ag Scheinwerfer für ein Fahrzeug mit einer Tagfahrlichtanordnung
JP4445502B2 (ja) * 2006-10-30 2010-04-07 株式会社シマノ 自転車用照明装置
DE102007049309B4 (de) 2007-10-15 2013-04-11 Automotive Lighting Reutlingen Gmbh Projektionsmodul eines Kraftfahrzeugscheinwerfers
CN102410496A (zh) * 2010-09-20 2012-04-11 刘克迅 光源的聚光装置及其灯具
EP2796778B1 (fr) * 2013-04-26 2017-02-01 Hella KGaA Hueck & Co. Système d'éclairage
DE102014008043A1 (de) * 2014-05-28 2015-12-03 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Fahrzeugscheinwerfer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3826988A1 (de) * 1988-08-09 1990-02-15 Kodak Ag Fahrzeugscheinwerfer
DE4036031C1 (fr) * 1990-11-13 1992-02-27 Hella Kg Hueck & Co, 4780 Lippstadt, De
JP2579256Y2 (ja) * 1992-04-30 1998-08-20 株式会社小糸製作所 光束パターン可変型４灯式前照灯
JP2827147B2 (ja) * 1993-07-09 1998-11-18 株式会社小糸製作所 リフレクタ駆動式車両用配光可変型灯具
FR2767182B1 (fr) * 1997-08-11 1999-09-03 Valeo Vision Projecteur a faisceau variable, notamment pour vehicules

Also Published As

Publication number Publication date
ATE336692T1 (de) 2006-09-15
DE19832466A1 (de) 2000-02-17
EP0974786A3 (fr) 2001-09-26
DE59913776D1 (de) 2006-09-28
EP0974786A2 (fr) 2000-01-26

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