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EP0208895B1 - Projecteur de croisement ou antibrouillard pour véhicules automobiles - Google Patents

Projecteur de croisement ou antibrouillard pour véhicules automobiles Download PDF

Info

Publication number
EP0208895B1
EP0208895B1 EP86107589A EP86107589A EP0208895B1 EP 0208895 B1 EP0208895 B1 EP 0208895B1 EP 86107589 A EP86107589 A EP 86107589A EP 86107589 A EP86107589 A EP 86107589A EP 0208895 B1 EP0208895 B1 EP 0208895B1
Authority
EP
European Patent Office
Prior art keywords
reflector
light
headlight according
beams
optical means
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
EP86107589A
Other languages
German (de)
English (en)
Other versions
EP0208895A3 (en
EP0208895A2 (fr
Inventor
Heinz Kretschmer
Gerhard Dipl.-Ing. Lindae
Ernst Merkl
Peter Perthus
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0208895A2 publication Critical patent/EP0208895A2/fr
Publication of EP0208895A3 publication Critical patent/EP0208895A3/de
Application granted granted Critical
Publication of EP0208895B1 publication Critical patent/EP0208895B1/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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
    • F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas

Definitions

  • the invention relates to a headlight for low beam or fog light of motor vehicles according to the preamble of claim 1.
  • Such a headlight is known from DE-OS 24 25 336, in which two side reflectors and the lens are required to form the additional light beam. The adjustment of the side reflectors and the superimposition of the light beam by the additional light beam cause increased mechanical and optical effort.
  • Such a headlamp is also known from DE 32 18 703 A1, in which only the direct rays (not reflected by the reflector) are used for the generation of the additional light beam, which rays pass through two prismatic lenses arranged on the side of the objective; the light intensity the direct rays are often inadequate and the horizontal extension of both prismatic lenses, which is a multiple of that of the lens, increases the lateral extension of the headlamp.
  • Claim 2 uses that region of the reflector for the formation of the additional light beam, the reflected rays of which are shielded by the diaphragm.
  • Claim 3 shows a way of an easily producible optical means.
  • FIG. 1 shows a headlamp for low beam or fog light of motor vehicles in vertical section in a non-scale, schematic representation
  • FIG. 2 shows a variant of the reflection section generating the additional light beam in viewing direction II in FIG. 1 in a greatly enlarged illustration.
  • a headlight for low beam or fog light of motor vehicles has an overall reflector 10, which a reflector 11 and a reflector cutout 12 essentially form.
  • the vertical and horizontal meridian section of the reflector 11 are higher-order curves, in particular ellipses or parabolas.
  • an incandescent lamp 14 is inserted, the filament (light source) 15 of which lies in the region of the optical axis 16 of the headlight, but is slightly offset with respect to the focal point 17 of the reflector cutout 12.
  • the reflector cutout 12 is part of a paraboloid and is attached to the reflector 11 in the lower region of the overall reflector 10.
  • an aperture 19 is arranged below the axis 16, the edge 20 of which forms the light-dark boundary of the light beam of the low beam or fog light illuminating the roadway.
  • an objective 21 is arranged in front of it, which projects the light onto the road.
  • the inclination and sweep (lateral inclination) essentially determines the front part of the motor vehicle body.
  • horizontally scattering means such as prisms 23 are arranged.
  • the three light beams 18 reflected by the reflector 11 pass through the lens 21 and form the light bundle that illuminates the road and complies with the legislation.
  • the reflector cutout 12, which is designed as part of a paraboloid, reflects the rays 24 below the aperture 19 and the objective 21, as a result of which an additional light beam is formed which effects the illumination of both the apron and the side illumination, ie the illumination of the road edges. These rays 24 are ineffective for the formation of the light beam and do not fall through the lens 21.
  • the horizontally scattering means 23 are not required if the reflector cutout 12 'is part of a paraboloid ellipsoid, the vertical meridian section of which is part of a parabola and the horizontal meridian section of which is part of an ellipsoid, because this alone achieves the desired side illumination.
  • the reflector cutout in FIG. 2 consists of a left and right side part 32, 33 (continuous line), which result from the fact that the original reflector cutout 12 (dashed line) is separated into a left side part 32 and a right side part 33 by a vertical central plane 30 ; both side parts are pivoted about a vertical pivot axis 31 which passes through the light source 15 (FIG. 1) such that the optical axis 32 'of the left side part 32 points to the right, the optical axis 33' of the right side part 33 points to the left, each with respect to the vertical center plane 30.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (6)

  1. Projecteur de croisement ou antibrouillard pour véhicules automobiles, dans lequel les rayons issus d'une source lumineuse sont renvoyés par un réflecteur dont les sections méridiennes verticale et horizontale sont des courbes d'un ordre élevé, comportant un diaphragme situé sur le trajet des rayons réfléchis, engendrant la limite "clair-obscur" du faisceau lumineux, un objectif placé sur le trajet des rayons influencés par le diaphragme pour former le faisceau d'éclairage de la chaussée, des moyens optiques formant un faisceau additionnel élargissant le faisceau principal éclairant l'avant proche et les côtés, les moyens optiques ne recevant que des rayons qui ne sont pas renvoyés sur l'objectif par le réflecteur, caractérisé en ce que les moyens optiques sont des moyens réfléchissants et sont disposés à la partie inférieure et/ou supérieure du réflecteur (11).
  2. Projecteur selon la revendication 1, caractérisé en ce que les moyens optiques comportent, au moins, un réflecteur partiel (12) situé à la partie inférieure du réflecteur (11).
  3. Projecteur selon la revendication 2, caractérisé en ce que le réflecteur partiel (12) est une partie de paraboloïde.
  4. Projecteur selon la revendication 2 ou 3, caractérisé en ce que le réflecteur partiel comporte au moins deux parties latérales, une droite et gauche (32, 33), l'axe optique (32') de la partie gauche (32) et celui (33') de la partie droite (33) étant avantageusement déplacés respectivement vers la droite et vers la gauche, par rotation autour d'un axe vertical (31) passant par la source lumineuse (15).
  5. Projecteur selon la revendication 4, caractérisé en ce que le réflecteur partiel (12') est une partie d'un paraboloïde-ellipsoïde, dont la section méridienne verticale est une portion de parabole et la section méridienne horizontale une portion d'ellipse.
  6. Projecteur selon une des revendications 1 à 3, caractérisé en ce que des moyens de dispersion horizontale des rayons sont disposés sur le parcours du faisceau additionnel (24).
EP86107589A 1985-07-13 1986-06-04 Projecteur de croisement ou antibrouillard pour véhicules automobiles Expired - Lifetime EP0208895B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3525041 1985-07-13
DE3525041A DE3525041C2 (de) 1985-07-13 1985-07-13 Abblendlicht-oder Nebellichtscheinwerfer für Kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0208895A2 EP0208895A2 (fr) 1987-01-21
EP0208895A3 EP0208895A3 (en) 1989-03-22
EP0208895B1 true EP0208895B1 (fr) 1992-09-16

Family

ID=6275688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107589A Expired - Lifetime EP0208895B1 (fr) 1985-07-13 1986-06-04 Projecteur de croisement ou antibrouillard pour véhicules automobiles

Country Status (4)

Country Link
US (1) US4772987A (fr)
EP (1) EP0208895B1 (fr)
JP (1) JPH0789447B2 (fr)
DE (2) DE3525041C2 (fr)

Families Citing this family (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825343A (en) * 1985-12-27 1989-04-25 Ichikoh Industries Limited Projector type headlamp for vehicles
DE3638669A1 (de) * 1986-11-12 1988-05-26 Auer Sog Glaswerke Gmbh Reflektor fuer zahnaerztliche und chirurgische operationsleuchten
JPH0320961Y2 (fr) * 1986-12-23 1991-05-08
DE3718642C1 (de) * 1987-06-04 1988-10-20 Friemann & Wolf Gmbh Abgeblendeter Fahrzeugscheinwerfer fuer Grubenfahrzeuge
US4845598A (en) * 1987-09-22 1989-07-04 Koito Seisakusho Co., Ltd. Headlight for automobile
US4881152A (en) * 1987-09-22 1989-11-14 Koito Seisakusho Co., Ltd. Headlight for automobile
JPS6486401A (en) * 1987-09-29 1989-03-31 Koito Mfg Co Ltd Head light of vehicle
JPH01115001A (ja) * 1987-10-28 1989-05-08 Koito Mfg Co Ltd 車輌用前照灯
JPH01120702A (ja) * 1987-11-05 1989-05-12 Koito Mfg Co Ltd 車輌用前照灯
JPH0731921B2 (ja) * 1988-01-20 1995-04-10 市光工業株式会社 プロジェクタ型の前照灯
JPH01232602A (ja) * 1988-03-11 1989-09-18 Koito Mfg Co Ltd 自動車用前照灯
JP2754678B2 (ja) * 1988-03-22 1998-05-20 市光工業株式会社 自動車用プロジェクター形前照灯
JPH0673241B2 (ja) * 1988-04-04 1994-09-14 株式会社小糸製作所 車輌用前照灯
JPH01254440A (ja) * 1988-04-05 1989-10-11 Koito Mfg Co Ltd 自動車用前照灯
JPH0762961B2 (ja) * 1988-04-08 1995-07-05 株式会社小糸製作所 車輌用前照灯
JPH0770241B2 (ja) * 1988-06-14 1995-07-31 市光工業株式会社 プロジェクタ型前照灯
JPH0412563Y2 (fr) * 1988-08-26 1992-03-26
JP2517368B2 (ja) * 1988-09-27 1996-07-24 株式会社小糸製作所 自動車用前照灯及び自動車用前照灯装置
US5055981A (en) * 1989-02-17 1991-10-08 Koito Manufacturing Co., Ltd. Automotive projector type headlight
JPH03126301U (fr) * 1990-04-04 1991-12-19
DE4010830C2 (de) * 1990-04-04 1998-10-15 Bosch Gmbh Robert Kraftfahrzeugscheinwerfer für Abblendlicht
DE4131483A1 (de) * 1991-09-21 1993-03-25 Bosch Gmbh Robert Scheinwerfer fuer kraftfahrzeuge
US5938323A (en) * 1996-05-24 1999-08-17 Cooper Automotive Products, Inc. Projector light assembly
DE19704426B4 (de) * 1997-02-06 2005-12-15 Automotive Lighting Reutlingen Gmbh Scheinwerfer für Fahrzeuge nach dem Projektionsprinzip
DE19704467B4 (de) * 1997-02-06 2006-07-20 Automotive Lighting Reutlingen Gmbh Fahrzeug-Scheinwerfer
JPH10269805A (ja) * 1997-03-21 1998-10-09 Stanley Electric Co Ltd ヘッドランプ
FR2775640B1 (fr) * 1998-03-04 2000-05-26 Valeo Vision Projecteur de vehicule automobile a miroir dote d'au moins une joue laterale
JP3005687B2 (ja) * 1998-05-28 2000-01-31 スタンレー電気株式会社 灯 具
JP3964089B2 (ja) 2000-01-12 2007-08-22 株式会社小糸製作所 車両用前照灯
JP3488960B2 (ja) * 2000-02-18 2004-01-19 スタンレー電気株式会社 車両用前照灯
JP4257675B2 (ja) 2002-03-27 2009-04-22 株式会社小糸製作所 車両用前照灯
JP4024618B2 (ja) * 2002-08-09 2007-12-19 株式会社小糸製作所 車両用前照灯
FR2849159B1 (fr) * 2002-12-24 2005-02-18 Valeo Vision Projecteur a source lumineuse transversale pour vehicule automobile
US7021804B2 (en) * 2003-08-13 2006-04-04 Guide Corporation Lamp assembly with multi-stage reflector
FR2863342B1 (fr) * 2003-12-05 2007-01-05 Valeo Vision Projecteur verticalise pour vehicule automobile
JP4261448B2 (ja) * 2004-09-17 2009-04-30 株式会社小糸製作所 車両用前照灯
FR2897142B1 (fr) 2006-02-03 2008-03-14 Valeo Vision Sa Module de projecteur lumineux a coupure pour vehicule automobile.
DE102006060029A1 (de) * 2006-12-19 2008-06-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Abblendkappe mit Wendel
JP4970136B2 (ja) * 2007-05-17 2012-07-04 株式会社小糸製作所 車両用前照灯の灯具ユニット
JP4825169B2 (ja) * 2007-05-30 2011-11-30 株式会社小糸製作所 車両用照明灯具
JP4864834B2 (ja) * 2007-08-21 2012-02-01 株式会社小糸製作所 車両用コーナリングランプ
DE102007049309B4 (de) * 2007-10-15 2013-04-11 Automotive Lighting Reutlingen Gmbh Projektionsmodul eines Kraftfahrzeugscheinwerfers
JP5023405B2 (ja) * 2009-01-19 2012-09-12 スタンレー電気株式会社 車両用前照灯ユニット
JP5023406B2 (ja) * 2009-03-30 2012-09-12 スタンレー電気株式会社 車両用前照灯ユニット
DE102010019372A1 (de) * 2010-05-05 2011-11-10 Volkswagen Ag Beleuchtungseinrichtung für ein Kraftfahrzeug
JP5544248B2 (ja) * 2010-08-24 2014-07-09 富士重工業株式会社 車両用前照灯
JP5292657B2 (ja) * 2012-02-17 2013-09-18 スタンレー電気株式会社 車両用ランプ
JP5911380B2 (ja) * 2012-06-11 2016-04-27 スタンレー電気株式会社 車両用灯具ユニット
JP6706183B2 (ja) * 2016-09-21 2020-06-03 日亜化学工業株式会社 光学素子

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US2012338A (en) * 1932-11-23 1935-08-27 Dietrich Friedrich Richard Reflector for lamps
US2074626A (en) * 1934-11-20 1937-03-23 Strange Andrew Lumisden Antidazzle device for vehicle head lamps
CH266987A (de) * 1948-10-04 1950-02-28 Richard Dietrich Friedrich Scheinwerfer.
FR77538E (fr) * 1960-04-20 1962-03-16 Projecteur à grande portée et à fort éclairement rapproché
GB1463313A (en) * 1973-05-25 1977-02-02 Lucas Electrical Ltd Vehicle lamp assembly
US4149229A (en) * 1976-06-18 1979-04-10 Lucas Industries Limited Lamp reflector with downwardly-facing step
JPS5722561U (fr) * 1980-07-09 1982-02-05
FR2509427A1 (fr) * 1981-07-10 1983-01-14 Cibie Projecteurs Projecteur de croisement a reflecteur asymetrique
DE3218703A1 (de) * 1982-05-18 1983-11-24 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter fahrzeugscheinwerfer
DE3241713A1 (de) * 1982-11-11 1984-05-17 Westfälische Metall Industrie KG Hueck & Co, 4780 Lippstadt Abgeblendeter scheinwerfer fuer kraftfahrzeuge
DE3531224A1 (de) * 1985-08-31 1987-03-05 Bosch Gmbh Robert Scheinwerfer fuer abblendlicht oder nebellicht von kraftfahrzeugen

Also Published As

Publication number Publication date
EP0208895A3 (en) 1989-03-22
JPH0789447B2 (ja) 1995-09-27
DE3525041A1 (de) 1987-01-15
JPS6215701A (ja) 1987-01-24
EP0208895A2 (fr) 1987-01-21
DE3525041C2 (de) 1994-06-16
DE3686748D1 (de) 1992-10-22
US4772987A (en) 1988-09-20

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