EP1031785A2 - Projecteur pour véhicules - Google Patents

Projecteur pour véhicules Download PDF

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Publication number
EP1031785A2
EP1031785A2 EP00102893A EP00102893A EP1031785A2 EP 1031785 A2 EP1031785 A2 EP 1031785A2 EP 00102893 A EP00102893 A EP 00102893A EP 00102893 A EP00102893 A EP 00102893A EP 1031785 A2 EP1031785 A2 EP 1031785A2
Authority
EP
European Patent Office
Prior art keywords
aperture
headlight according
runs
reflector
focal
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
EP00102893A
Other languages
German (de)
English (en)
Other versions
EP1031785A3 (fr
EP1031785B1 (fr
Inventor
Karsten Dr. Eichhorn
Franz-Josef Kalze
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 EP1031785A2 publication Critical patent/EP1031785A2/fr
Publication of EP1031785A3 publication Critical patent/EP1031785A3/fr
Application granted granted Critical
Publication of EP1031785B1 publication Critical patent/EP1031785B1/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
    • F21S41/68—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
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof

Definitions

  • the invention relates to a headlight for vehicles with a bowl-shaped reflector, with one in the beam path of the reflector arranged lens, with a between the reflector and the lens arranged first aperture, which is used to generate a light-dark boundary a beam of light from the headlight, and with one above the first Aperture arranged second aperture, which is used to generate a second Light-dark border serves.
  • Such a headlight for vehicles is known from DE 43 01 936 A1 become.
  • the headlight has an ellipsoidal reflector with a inner and outer burning area. Between the reflector and a lens a first and a second aperture are arranged.
  • the first aperture is below the arranged optical axis of the reflector, while the second aperture in one Distance above the first aperture is arranged.
  • a gap which is defined by focal lines of the first and second aperture is limited.
  • the first aperture forms a line with its focal line
  • the cut-off line which is a beam of light from the headlight upwards limited
  • the second aperture represents a cut-off line that the Light beam limited at the bottom. This is due to the upper cut-off line Light for the distance and light in front due to the lower cut-off line determined the vehicle. It is disadvantageous here that the lighting is close to the vehicle cannot be adjusted depending on the situation.
  • the object of the invention is that described in the preamble of claim 1 To design headlights for vehicles in such a way that close-up lighting of a Field in front of the vehicle is variable through the second cover of the headlight can be influenced.
  • This object is achieved according to the invention in that the second aperture around an axis of rotation, which is horizontal and transverse to the optical Axis runs, is adjustable in several rotational positions and at least two has different focal lines. The lighting close to the vehicle can be influenced while driving when the second aperture with a electrical drive of the headlamp is coupled.
  • the shaft When the shaft is turned from one rotary position to the other, it changes Position of the cut-off line is not abrupt, but moves continuously, if the second aperture is formed by a bet, the outer surface of each Rotary position has a focal line.
  • the focal lines can have the most varied course if the lateral surface of the second diaphragm at least in one connecting two different focal lines Surface section of the lateral surface deviates and runs irregularly. This allows the shaft to be designed so that the axis of rotation through the Center of gravity or near the center of mass of the shaft and therefore no balancing weights are necessary for the shaft.
  • the distance of the most focal lines to the axis of rotation can be made much smaller than with shafts with cylindrical surfaces. Hence the mass of the wave smaller than cylindrical shafts, and the electric drive means of the shaft can be dimensioned accordingly small.
  • a first focal line is the second Aperture is convex. This reduces the lighting immediately in front of the vehicle.
  • the second focal line is the second Aperture is concave. There is a reduction in side scatter.
  • the first and second focal lines should run symmetrically.
  • the first diaphragm like the second diaphragm, also has different ones Focal lines and builds easily when the first aperture around an axis of rotation, which runs parallel to the axis of rotation of the second aperture, in several Rotational positions are adjustable and at least two different focal lines has, wherein a lateral surface of the first panel at least in two surface section of the lateral surface connecting different focal lines deviates and runs irregularly.
  • the apron lighting is influenced depending on the respective Rotational position of the first diaphragm if the second diaphragm has a gear with the first aperture is coupled.
  • the headlamp has a pot-shaped housing made of plastic (20), whose front opening through a bowl-shaped, translucent End plate (16) is closed. Inside the housing (20) is a ellipsoidal reflector (1) arranged, which by a not shown Adjustment device adjustable about two mutually perpendicular axes is.
  • the ellipsoidal reflector has an opening (19) in the apex area Recording a light source (18)
  • An incandescent lamp serves as the light source (18) or a gas discharge lamp.
  • the light source (18) is in an internal burning location of the ellipsoidal reflector (1).
  • On the front circumferential A frame (17) is attached to the edge of the reflector (1) and carries a lens (2).
  • the lens (2) collects the light from the light source reflected by the reflector (1) (18). Between the reflector (1) and the lens (2) is in a focal range Lens (2) a first aperture (3) arranged.
  • a shaft serves as the diaphragm (3), which is adjustable about an axis of rotation (11) below an optical Axis (6) of the headlamp horizontally and transversely to the light exit direction of the Headlight runs.
  • the diaphragm (3) has several focal lines (12, 13), which have a different course.
  • a focal line of the aperture (3) can be a light-dark boundary of an asymmetrical light beam and a other focal line a symmetrical light-dark boundary of a light beam surrender.
  • a lateral surface of the first diaphragm (3) runs in the circumferential direction and in Irregular direction of the axis of rotation (11). Is above the first aperture (3) a second aperture (4) is arranged.
  • the first and the second aperture (3 and 4) are supported by a holder (21) on the front edge of the reflector (1) is attached.
  • a shaft also serves as the diaphragm (4) has different focal lines (7, 8, 9) and between the focal lines (7,8,9) irregular in the circumferential direction and in the direction of the axis of rotation (5) runs.
  • the axis of rotation (5) of the second diaphragm (4) also runs horizontally and across the light exit direction.
  • the wide apertures (3, 4) are over one Gearbox (15) positively coupled.
  • each rotary position of the first aperture (3) a certain focal line of the second aperture (4) of the respective active one Focal line assigned to the first aperture (3).
  • a first focal line (7) of the second Aperture (4) is convex and symmetrical and a second focal line (8) concave and symmetrical, while a third focal line (9) asymmetrical and convex.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP00102893A 1999-02-27 2000-02-12 Projecteur pour véhicules Expired - Lifetime EP1031785B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19908641A DE19908641A1 (de) 1999-02-27 1999-02-27 Scheinwerfer für Fahrzeuge
DE19908641 1999-02-27

Publications (3)

Publication Number Publication Date
EP1031785A2 true EP1031785A2 (fr) 2000-08-30
EP1031785A3 EP1031785A3 (fr) 2001-11-14
EP1031785B1 EP1031785B1 (fr) 2006-08-30

Family

ID=7899151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00102893A Expired - Lifetime EP1031785B1 (fr) 1999-02-27 2000-02-12 Projecteur pour véhicules

Country Status (2)

Country Link
EP (1) EP1031785B1 (fr)
DE (2) DE19908641A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170547A1 (fr) 2000-07-07 2002-01-09 Valeo Vision Projecteur du genre elliptique notamment pour éclairage de route à photométrie basse améliorée
FR2847655A1 (fr) * 2002-11-21 2004-05-28 Valeo Vision Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents
FR2854226A1 (fr) * 2003-04-23 2004-10-29 Koito Mfg Co Ltd Phare de vehicule a obturateur pour temps de pluie
DE102004063836A1 (de) * 2004-12-24 2006-03-30 Daimlerchrysler Ag Scheinwerfersteuerung
EP2339229A3 (fr) * 2009-12-24 2012-09-12 Koito Manufacturing Co., Ltd Dispositif projecteur pour véhicule automobile
CN102822593A (zh) * 2010-03-31 2012-12-12 黑拉许克联合股份有限公司 汽车的投射式前照灯装置
EP2381167A3 (fr) * 2010-04-22 2014-01-01 Zizala Lichtsysteme GmbH Phare pour véhicules
EP2843298A3 (fr) * 2013-08-30 2015-12-02 SL Corporation Phare pour véhicule

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305624A1 (de) * 2003-02-11 2004-08-19 Volkswagen Ag Scheinwerferanordnung für ein Fahrzeug zur Projektion variabler Lichtgeometrien
DE10355747B4 (de) * 2003-08-28 2014-10-09 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugscheinwerfer zur Erzeugung unterschiedlicher Leuchtfunktionen
DE102006031819A1 (de) * 2006-07-07 2008-01-10 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102007050206A1 (de) 2007-10-20 2009-04-23 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102007050207A1 (de) 2007-10-20 2009-04-23 Hella Kgaa Hueck & Co. Projektionsscheinwerfer für Fahrzeuge
DE102011052552A1 (de) * 2011-08-10 2013-02-14 Hella Kgaa Hueck & Co. Scheinwerfer für Fahrzeuge
DE102011055328B4 (de) * 2011-11-14 2014-03-20 Corian Siedentopf Blende mit mehreren schwenkbeweglich angeordneten Lamellen sowie eine mit einer solchen Blende ausgestattete Leuchte

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301936A1 (fr) 1992-01-27 1993-07-29 Koito Mfg Co Ltd

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1245961A (en) * 1968-01-01 1971-09-15 Lucas Industries Ltd Lighting systems for road vehicles
FR2531518A1 (fr) * 1982-08-03 1984-02-10 Roussel Andre Projecteur antieblouissant pour vehicule automobile
DE3528820C2 (de) * 1985-08-10 1994-02-24 Bosch Gmbh Robert Abblendlicht- oder Nebellichtscheinwerfer für Kraftfahrzeuge
JPH05347101A (ja) * 1992-06-12 1993-12-27 Stanley Electric Co Ltd プロジェクタ型灯具
JP2538132Y2 (ja) * 1992-07-24 1997-06-11 株式会社小糸製作所 投射型自動車用ヘッドランプ
US5373424A (en) * 1992-10-21 1994-12-13 Koito Manufacturing Co., Ltd. Automotive projection headlamp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301936A1 (fr) 1992-01-27 1993-07-29 Koito Mfg Co Ltd

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1170547A1 (fr) 2000-07-07 2002-01-09 Valeo Vision Projecteur du genre elliptique notamment pour éclairage de route à photométrie basse améliorée
FR2811408A1 (fr) * 2000-07-07 2002-01-11 Valeo Vision Projecteur du genre elliptique notamment pour eclairage de route a photometrie basse amelioree
US6561688B2 (en) 2000-07-07 2003-05-13 Valeo Vision Elliptical headlights for motor vehicles
FR2847655A1 (fr) * 2002-11-21 2004-05-28 Valeo Vision Projecteur elliptique pour vehicule automobile emettant des faisceaux d'eclairage differents
EP1422471A3 (fr) * 2002-11-21 2007-12-05 Valeo Vision Projecteur elliptique pour véhicule automobile émettant des faisceaux d'éclairage différents
FR2854226A1 (fr) * 2003-04-23 2004-10-29 Koito Mfg Co Ltd Phare de vehicule a obturateur pour temps de pluie
DE102004063836A1 (de) * 2004-12-24 2006-03-30 Daimlerchrysler Ag Scheinwerfersteuerung
EP2339229A3 (fr) * 2009-12-24 2012-09-12 Koito Manufacturing Co., Ltd Dispositif projecteur pour véhicule automobile
CN102822593A (zh) * 2010-03-31 2012-12-12 黑拉许克联合股份有限公司 汽车的投射式前照灯装置
CN102822593B (zh) * 2010-03-31 2015-03-25 黑拉许克联合股份有限公司 汽车的投射式前照灯装置
EP2381167A3 (fr) * 2010-04-22 2014-01-01 Zizala Lichtsysteme GmbH Phare pour véhicules
EP2843298A3 (fr) * 2013-08-30 2015-12-02 SL Corporation Phare pour véhicule

Also Published As

Publication number Publication date
EP1031785A3 (fr) 2001-11-14
DE50013367D1 (de) 2006-10-12
EP1031785B1 (fr) 2006-08-30
DE19908641A1 (de) 2000-08-31

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