EP1660809A1 - Phare pour v hicules - Google Patents

Phare pour v hicules

Info

Publication number
EP1660809A1
EP1660809A1 EP04764676A EP04764676A EP1660809A1 EP 1660809 A1 EP1660809 A1 EP 1660809A1 EP 04764676 A EP04764676 A EP 04764676A EP 04764676 A EP04764676 A EP 04764676A EP 1660809 A1 EP1660809 A1 EP 1660809A1
Authority
EP
European Patent Office
Prior art keywords
diaphragm shaft
shaft
diaphragm
headlight according
reflector
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
EP04764676A
Other languages
German (de)
English (en)
Other versions
EP1660809B1 (fr
Inventor
Karsten Eichhorn
Franz-Josef Kalze
Christian Schmidt
Ewald Topp
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 EP1660809A1 publication Critical patent/EP1660809A1/fr
Application granted granted Critical
Publication of EP1660809B1 publication Critical patent/EP1660809B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/698—Shaft-shaped screens rotating along its longitudinal axis

Definitions

  • the invention relates to a headlight for vehicles with a two
  • Reflector having focal points and with a diaphragm shaft arranged between a lens and the reflector, which is arranged adjustable in several rotational positions about a horizontal and transverse to the optical axis, the outer surface of the diaphragm shaft having a focal line for each rotational position, which is a light-dark -Border generated a light figure, with a rotary position of the diaphragm shaft for high beam.
  • EP-A-0 900 972 discloses a headlight for vehicles with a cup-shaped reflector having two focal points, to which a lens and an aperture shaft are assigned.
  • the diaphragm shaft extends transversely to the optical axis of the light source arranged in the apex region of the reflector.
  • the diaphragm shaft is rotatably mounted about its axis of rotation and has a circumferentially curved outer surface with several focal lines which, depending on the rotational position of the diaphragm shaft, serve to form light-dark borders of different light figures.
  • the aperture shaft points points
  • Focal lines for symmetrical and asymmetrical low and high beams are arranged on the opposite end regions of the diaphragm shaft, so that the diaphragm shaft can be positioned and adjusted in the predetermined rotational positions. Because of the circumferentially curved outer surface of the diaphragm shaft, the diaphragm shaft shields light rays reflected by the reflector in all rotational positions. As a result, both the focal lines for low beam and the focal line for high beam create a sharp cut-off line. The high beam would go much further without an aperture wave or a cut-off line.
  • the object of the invention is to improve the headlights for vehicles described in the preamble of claim 1 in such a way that the diaphragm shaft has dimensions that are as small as possible and, with a very wide-ranging high beam, can have as many focal lines for low beam functions as possible.
  • This object is achieved according to the invention in that the diaphragm shaft in the rotational position for high beam has a flattening directed towards the upper side of the headlight at least in a region adjacent to the optical axis of the headlight. A flattening is possible because a flattening does not represent a sharp cut-off line and this is unimportant for high beam. Since the diaphragm shaft for high beam one
  • a focal line for low beam can be arranged very close to a longitudinal edge of the flat.
  • the particular advantage of the invention is that the flattening is flat in a rotational position of the diaphragm shaft in the light exit direction. As a result, in the rotary position for high beam, many light rays pass the aperture shaft and the high beam extends very far. In this
  • the thickness of the diaphragm shaft is reduced by 30 to 60%, preferably 40 to 50%, by the flattening.
  • a central plane of the diaphragm shaft in which the axis of rotation of the diaphragm shaft lies, runs through a central region of the flattening.
  • the cross-sectional areas of the diaphragm shaft are approximately symmetrical to the central plane.
  • the flattening is one
  • Base of a recess made in the aperture shaft is formed.
  • the mass of the diaphragm shaft is smaller, the wider the recess is in its longitudinal extent.
  • a shading device is arranged at least below the diaphragm shaft, which runs with its upper edge section adjacent to the diaphragm shaft and, viewed in the light exit direction, is a continuous shielding device for light rays from a light source of the headlamp, the shading device having two shadows , between which the diaphragm shaft is arranged.
  • a first shading shields the area below the aperture shaft and runs with an upper edge in the high beam position of the aperture roller adjacent to an edge of the flattening of the aperture shaft and a second shading runs below and with its flattening of the aperture shaft upper edge region also runs adjacent to an edge of the flattening of the diaphragm shaft.
  • the second shading device is particularly lightweight if it is designed in the form of a strip and, viewed in the light exit direction, lies with its lower long edge region adjacent to the lower side of the diaphragm shaft.
  • FIG. 1 shows a perspective view of a projection module of a headlight for vehicles
  • FIG. 2 shows a vertical central longitudinal section of the projection module with an aperture shaft, which has a flat for high beam and focal lines for low beam on a curved outer surface, the aperture shaft being shown in the high beam position,
  • FIG. 3 shows a vertical central longitudinal section of the projection module with an aperture shaft in a low beam position and two shadows
  • FIG. 4 shows the projection module with diaphragm shaft in a different low beam position in a vertical central longitudinal section
  • FIG. 5 shows a front view of the diaphragm shaft as an individual part with a recess forming a flat for high beam, the recess being shown in two possible widths, and
  • Figures 6 and 7 in a perspective view of the diaphragm shaft as an individual part.
  • a headlight for vehicles shown in the figures is designed as a projection module that has an elliptical reflector 3, a light source 20 arranged in the apex region of the reflector 3, a lens 4 and an aperture shaft 5 arranged between the reflector 3 and the lens 4.
  • a gas discharge lamp is provided as the light source 20 and is provided with an igniter on its base.
  • the lens 4 is inserted into a table-shaped frame 25 which is attached to the front edge region of the reflector 3.
  • the aperture shaft 5 is made by means of die casting, for example from a magnesium or aluminum alloy. It can also consist of an elongated hollow body made of sheet metal, the contour of the lateral surface of the hollow body being produced by generating an internal high pressure (not shown).
  • the diaphragm shaft 5 has a bearing journal 21 which is mounted on the front edge region 17 of the reflector 3.
  • the aperture shaft 5 is mounted perpendicular to the optical axis of the headlamp in the horizontal direction.
  • An end section of the diaphragm shaft 5 is coupled to a drive unit (not shown) serving as drive means, by means of which the diaphragm shaft 5 can be brought into predetermined rotational positions.
  • the drive unit consists of a motor and possibly a gear.
  • a first lateral surface section 22 of the diaphragm shaft 5 is designed such that focal lines 8 of the optical light system are formed in different rotational positions adjusted about the axis of rotation 7 of the diaphragm shaft 5, by means of which light-dark limits of different dimmed light figures, such as, for example, symmetrical and asymmetrical dipped beam for right-hand and left-hand traffic are generated.
  • the first lateral surface section 22 is curved, at least in the region having the focal lines 8, and has at least one surface section running two focal lines, which is designed differently from a cylindrical surface.
  • the first lateral surface section 23 thus runs irregularly in the surface section.
  • a second lateral surface section 22 of the diaphragm shaft 5 has a flattening 9, which is formed by the bottom of a recess 10 made in the diaphragm shaft 5.
  • the thickness of the diaphragm shaft 5 is reduced by 45 to 50% through the recess 10.
  • the recess 10 extends up to free end portions 24 of the diaphragm shaft 5, from which the bearing pins 21 of the diaphragm shaft 5 protrude.
  • a narrower design is shown in FIG Recess 10 shown in dashed lines.
  • the flat 9 is flat and is arranged with its central region adjacent to the axis of rotation 7 of the diaphragm shaft 5 and the optical axis 6 of the headlamp. In the high beam position of the diaphragm shaft 5, the flat flattening 9 runs horizontally and releases almost all of the light beams 26 reflected by the reflector 3. The high beam therefore extends very far.
  • the aperture shaft 5 forms, together with a first and second shading device 11 and 12, a shielding device, so that there are no disturbing effects between the aperture shaft 5 and the lower front edge region 17 of the reflector 3
  • the aperture shaft 5 is arranged between the first and second shaders 11 and 12.
  • the first shader 11 is plate-shaped, arranged between the aperture shaft 5 and the reflector 3 and extends in the high beam position of the aperture shaft 5 with its upper edge 13 up to a maximum of the adjacent edge 15 of the flattening 9 of the aperture shaft 5.
  • the lower edge section of the first shader 11 extends to the front lower edge region 17 of the reflector 3 and is fastened to it.
  • the second shader 12 also extends with its upper edge 14 at most to the adjacent edge 15 of the flattening 9 of the diaphragm shaft 5 and, viewed in the light exit direction, approximately to the lower side of the diaphragm shaft 5 runs obliquely to the horizontal, no light rays 16 interfering with oncoming traffic pass between the aperture shaft 5 and the first shading device 11.

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)
EP04764676A 2003-09-05 2004-09-01 Phare pour vehicules Expired - Lifetime EP1660809B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10340961A DE10340961A1 (de) 2003-09-05 2003-09-05 Scheinwerfer für Fahrzeuge
PCT/EP2004/009711 WO2005024296A1 (fr) 2003-09-05 2004-09-01 Phare pour véhicules

Publications (2)

Publication Number Publication Date
EP1660809A1 true EP1660809A1 (fr) 2006-05-31
EP1660809B1 EP1660809B1 (fr) 2007-05-30

Family

ID=34223377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764676A Expired - Lifetime EP1660809B1 (fr) 2003-09-05 2004-09-01 Phare pour vehicules

Country Status (5)

Country Link
EP (1) EP1660809B1 (fr)
AT (1) ATE363627T1 (fr)
DE (2) DE10340961A1 (fr)
ES (1) ES2288267T3 (fr)
WO (1) WO2005024296A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009027711A1 (de) 2008-08-13 2010-04-01 Saia-Burgess Murten Ag Einstellvorrichtung zum Bewegen einer Einstellkomponente und Scheinwerfer

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4153364B2 (ja) 2003-05-22 2008-09-24 株式会社小糸製作所 車両用前照灯
DE102005021705A1 (de) * 2005-05-11 2006-11-16 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102005021695B4 (de) * 2005-05-11 2014-10-09 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102008010028B4 (de) * 2008-02-20 2016-12-08 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
CZ301827B6 (cs) * 2008-07-21 2010-07-07 Visteon Global Technologies, Inc. Adaptivní projektorový systém pro svetlomety motorových vozidel
DE102008047278A1 (de) 2008-09-16 2010-04-15 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge und Herstellungsverfahren
JP5618312B2 (ja) * 2009-03-12 2014-11-05 株式会社小糸製作所 車両用前照灯
DE102009032019B4 (de) 2009-07-07 2019-05-09 Volkswagen Ag Projektionsscheinwerfer für ein Kraftfahrzeug
DE102009035743A1 (de) * 2009-08-01 2011-02-17 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Kraftfahrzeugscheinwerfer
DE202010001897U1 (de) 2010-01-29 2010-05-06 Automotive Lighting Reutlingen Gmbh Lichtmodul eines Kraftfahrzeugscheinwerfers
AT509821B1 (de) * 2010-04-22 2013-08-15 Zizala Lichtsysteme Gmbh Scheinwerfer für fahrzeuge
AT509816B1 (de) * 2010-04-22 2012-07-15 Zizala Lichtsysteme Gmbh Scheinwerfer für fahrzeuge
AT509830B1 (de) * 2010-04-22 2012-07-15 Zizala Lichtsysteme Gmbh Scheinwerfer für fahrzeuge
DE102010025557A1 (de) * 2010-06-29 2011-12-29 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Scheinwerfer eines Kraftfahrzeugs
DE102010045434B4 (de) 2010-09-15 2018-05-30 HELLA GmbH & Co. KGaA Projektionsscheinwerfer für Fahrzeuge
DE102011087245A1 (de) 2011-11-28 2013-05-29 Automotive Lighting Reutlingen Gmbh Projektionslichtmodul mit einer Blende aus Kunststoffmaterial
DE102011087225A1 (de) 2011-11-28 2013-05-29 Automotive Lighting Reutlingen Gmbh Projektionslichtmodul für einen Kraftfahrzeugscheinwerfer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2927147B2 (ja) * 1993-07-16 1999-07-28 トヨタ自動車株式会社 車両用前照灯装置
JP3224951B2 (ja) * 1994-10-05 2001-11-05 株式会社小糸製作所 投射型自動車用ヘッドランプ
DE19739089A1 (de) * 1997-09-06 1999-03-11 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
DE19909413A1 (de) * 1999-03-04 2000-09-07 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
DE19921907A1 (de) * 1999-05-12 2000-11-16 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge
DE10047207A1 (de) * 2000-09-23 2002-04-11 Hella Kg Hueck & Co Scheinwerfer für Fahrzeuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005024296A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009027711A1 (de) 2008-08-13 2010-04-01 Saia-Burgess Murten Ag Einstellvorrichtung zum Bewegen einer Einstellkomponente und Scheinwerfer

Also Published As

Publication number Publication date
ATE363627T1 (de) 2007-06-15
WO2005024296A1 (fr) 2005-03-17
DE10340961A1 (de) 2005-03-31
EP1660809B1 (fr) 2007-05-30
DE502004003980D1 (de) 2007-07-12
ES2288267T3 (es) 2008-01-01

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