EP0171646A1 - Scheinwerfer für Abblendlicht oder Nebellicht von Kraftfahrzeugen - Google Patents

Scheinwerfer für Abblendlicht oder Nebellicht von Kraftfahrzeugen Download PDF

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Publication number
EP0171646A1
EP0171646A1 EP85109019A EP85109019A EP0171646A1 EP 0171646 A1 EP0171646 A1 EP 0171646A1 EP 85109019 A EP85109019 A EP 85109019A EP 85109019 A EP85109019 A EP 85109019A EP 0171646 A1 EP0171646 A1 EP 0171646A1
Authority
EP
European Patent Office
Prior art keywords
lens
light
ground
headlight according
converging lens
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.)
Ceased
Application number
EP85109019A
Other languages
German (de)
English (en)
French (fr)
Inventor
Xiem Dipl.-Ing. Guyen
Christian Dipl.-Ing. Liètar
Gerhard Dipl.-Ing. Lindae
Richard Loewe
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 EP0171646A1 publication Critical patent/EP0171646A1/de
Ceased 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21S41/40—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 low beam or fog light of motor vehicles according to the preamble of claim 1.
  • the light-dark boundary which is created by imaging the diaphragm edge, has a color fringe formed by the color decomposition of the white light.
  • a low beam or fog light with such a color fringe does not correspond to the legal regulations on motor vehicle headlights, because only white light is permitted for this; this could be achieved with a three-part lens that has two converging lenses and a diffusing lens with spherically ground lens surfaces.
  • the three-part design of the lens and the total of six ground lens surfaces require a large amount of technical work to manufacture the headlamp.
  • the problem of the technical production outlined in the aforementioned prior art is solved in a simple manner in that the Objective consists of only two lenses and the required aspherical lens surface is already created by the molding tool during the pressing process.
  • the two spherical surfaces of the scattering lens and the spherical surface of the converging lens can be both pressed and ground, with the grinding of any spherical surface which is part of a spherical surface being simple.
  • the pressed aspherical surface of the converging lens can be calculated and manufactured in such a way that a light-dark boundary that is too high in contrast is avoided and sufficient illumination of the room to be illuminated is achieved; one increases the driving safety of the motor vehicle driver and the other makes the traffic signs more clearly recognizable.
  • a headlight for low beam or fog light of motor vehicles has a reflector 10, the vertical meridian section 11 and horizontal meridian section 12 of which are higher-order intersection curves, for example ellipses, parabolas or conic section-like curves.
  • a luminous element 13 is arranged in the region of the optical axis 14 of the headlight, and in the direction of the rays reflected by the reflector 10, ie in front of the light exit opening 15 of the
  • the reflector 10 is an aperture 16, the optically effective edge 17 forms the light-dark boundary of the light beam.
  • the diffusion lens 18 has a flat surface 20 and a spherical surface 21 which is part of a spherical surface. Both surfaces 20, 21 are created by grinding a pressed blank.
  • the converging lens 19 consists of pressed glass, the aspherical surface 23 of which has already been pressed, ie does not require a subsequent grinding process; their spherical surface 22, however, is ground.
  • the concave surface 21 of the diffusing lens 18 and the convex surface 22 of the converging lens 19 are arranged adjacent.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP85109019A 1984-08-17 1985-07-19 Scheinwerfer für Abblendlicht oder Nebellicht von Kraftfahrzeugen Ceased EP0171646A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430273 DE3430273A1 (de) 1984-08-17 1984-08-17 Scheinwerfer fuer abblendlicht oder nebellicht von kraftfahrzeugen
DE3430273 1984-08-17

Publications (1)

Publication Number Publication Date
EP0171646A1 true EP0171646A1 (de) 1986-02-19

Family

ID=6243273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109019A Ceased EP0171646A1 (de) 1984-08-17 1985-07-19 Scheinwerfer für Abblendlicht oder Nebellicht von Kraftfahrzeugen

Country Status (3)

Country Link
EP (1) EP0171646A1 (ja)
JP (1) JPS6149302A (ja)
DE (1) DE3430273A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2306073A3 (de) * 2009-10-05 2013-06-12 Automotive Lighting Reutlingen GmbH Lichtmodul für eine Beleuchtungseinrichtung eines Kraftfahrzeugs
EP2306074A3 (de) * 2009-10-05 2013-06-12 Automotive Lighting Reutlingen GmbH Kraftfahrzeugscheinwerfer mit einem Halbleiterquellen, eine Primäroptik und eine Sekundäroptik aufweisenden Lichtmodul
US8556482B2 (en) 2007-07-26 2013-10-15 Docter Optics Se Method for producing a headlamp lens for a motor-vehicle headlamp
EP2431658A3 (de) * 2010-09-16 2014-01-08 Automotive Lighting Reutlingen GmbH Farbkorrigierende Projektionsoptik für ein Lichtmodul eines Kraftfahrzeug-Scheinwerfers
DE102011004086C5 (de) * 2011-02-14 2016-07-14 Automotive Lighting Reutlingen Gmbh Verfahren zur Herstellung einer farbkorrigierenden Projektionsoptik
CN106322271A (zh) * 2015-07-02 2017-01-11 株式会社小糸制作所 车辆用灯具
JP2018005219A (ja) * 2016-07-08 2018-01-11 ウン，ヒョン−ス ヘッドライト用プラスチック複合レンズ

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT405212B (de) * 1997-01-15 1999-06-25 Photonic Optische Geraete Gmbh Optisches element
JP5510805B2 (ja) * 2010-03-01 2014-06-04 スタンレー電気株式会社 自動二輪車用プロジェクタ型ヘッドランプ
DE102010051597B4 (de) 2010-11-16 2017-05-11 Automotive Lighting Reutlingen Gmbh Optisches Linsenelement, Lichtmodul für einen Kraftfahrzeugscheinwerfer mit einem solchen Linsenelement und Kraftfahrzeugscheinwerfer mit einem solchen Lichtmodul

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191503020A (en) * 1915-02-24 1916-02-03 Arthur Knobloch Improvements in or relating to Lenses.
FR44757E (fr) * 1934-04-20 1935-04-06 Système de phare non éblouissant pour automobiles et autres applications
FR992756A (fr) * 1944-09-09 1951-10-23 Projecteur perfectionné
LU43789A1 (ja) * 1963-05-21 1964-05-21
US3598989A (en) * 1969-01-02 1971-08-10 Sylvania Electric Prod Automotive headlight
GB1248600A (en) * 1967-12-29 1971-10-06 Gte Sylvania Inc Automobile headlights
US4240701A (en) * 1978-06-12 1980-12-23 M.U. Engineering & Manufacturing, Inc. All plastic projection lens assembly with aspheric surface

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191503020A (en) * 1915-02-24 1916-02-03 Arthur Knobloch Improvements in or relating to Lenses.
FR44757E (fr) * 1934-04-20 1935-04-06 Système de phare non éblouissant pour automobiles et autres applications
FR992756A (fr) * 1944-09-09 1951-10-23 Projecteur perfectionné
LU43789A1 (ja) * 1963-05-21 1964-05-21
GB1248600A (en) * 1967-12-29 1971-10-06 Gte Sylvania Inc Automobile headlights
US3598989A (en) * 1969-01-02 1971-08-10 Sylvania Electric Prod Automotive headlight
US4240701A (en) * 1978-06-12 1980-12-23 M.U. Engineering & Manufacturing, Inc. All plastic projection lens assembly with aspheric surface

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8556482B2 (en) 2007-07-26 2013-10-15 Docter Optics Se Method for producing a headlamp lens for a motor-vehicle headlamp
EP2306073A3 (de) * 2009-10-05 2013-06-12 Automotive Lighting Reutlingen GmbH Lichtmodul für eine Beleuchtungseinrichtung eines Kraftfahrzeugs
EP2306074A3 (de) * 2009-10-05 2013-06-12 Automotive Lighting Reutlingen GmbH Kraftfahrzeugscheinwerfer mit einem Halbleiterquellen, eine Primäroptik und eine Sekundäroptik aufweisenden Lichtmodul
EP2431658A3 (de) * 2010-09-16 2014-01-08 Automotive Lighting Reutlingen GmbH Farbkorrigierende Projektionsoptik für ein Lichtmodul eines Kraftfahrzeug-Scheinwerfers
DE102011004086C5 (de) * 2011-02-14 2016-07-14 Automotive Lighting Reutlingen Gmbh Verfahren zur Herstellung einer farbkorrigierenden Projektionsoptik
CN106322271A (zh) * 2015-07-02 2017-01-11 株式会社小糸制作所 车辆用灯具
US10234096B2 (en) 2015-07-02 2019-03-19 Koito Manufacturing Co., Ltd. Vehicle lamp
CN106322271B (zh) * 2015-07-02 2019-03-22 株式会社小糸制作所 车辆用灯具
JP2018005219A (ja) * 2016-07-08 2018-01-11 ウン，ヒョン−ス ヘッドライト用プラスチック複合レンズ

Also Published As

Publication number Publication date
DE3430273A1 (de) 1986-02-27
JPS6149302A (ja) 1986-03-11

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19860423

17Q First examination report despatched

Effective date: 19870107

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19871109

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PERTHUS, PETER

Inventor name: LINDAE, GERHARD, DIPL.-ING.

Inventor name: LOEWE, RICHARD

Inventor name: LIETAR, CHRISTIAN, DIPL.-ING.

Inventor name: GUYEN, XIEM, DIPL.-ING.