EP2019258A1 - Optisches Modul mit Lichtquelle für Scheinwerfer eines Kraftfahrzeugs - Google Patents

Optisches Modul mit Lichtquelle für Scheinwerfer eines Kraftfahrzeugs Download PDF

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Publication number
EP2019258A1
EP2019258A1 EP08160599A EP08160599A EP2019258A1 EP 2019258 A1 EP2019258 A1 EP 2019258A1 EP 08160599 A EP08160599 A EP 08160599A EP 08160599 A EP08160599 A EP 08160599A EP 2019258 A1 EP2019258 A1 EP 2019258A1
Authority
EP
European Patent Office
Prior art keywords
mirror
optical module
light rays
light
face
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.)
Withdrawn
Application number
EP08160599A
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English (en)
French (fr)
Inventor
Sébastien Casenave
Marie Pellarin
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.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
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 Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP2019258A1 publication Critical patent/EP2019258A1/de
Withdrawn legal-status Critical Current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
    • F21S41/40—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
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • 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
    • 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
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F21S41/168—Incandescent light sources, e.g. filament or halogen lamps having a filament arranged transversally to the optical axis of the illuminating device
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/17—Discharge light sources
    • F21S41/172—High-intensity discharge light sources

Definitions

  • the subject of the present invention is an optical module with transverse light source, in particular for an so-called elliptical optical module.
  • the elliptical module according to the invention is intended to be integrated in a projector for a motor vehicle, in particular to emit at least one code-type beam.
  • the object of the invention is essentially to propose a solution making it possible to reduce the space requirement of the floodlighting devices by proposing the use of a transverse light source placed in the optical module in question; the optical module according to the invention allows optimum recovery of the luminous flux produced by the light source thus disposed.
  • An optical module comprises an optical system comprising at least one light source, for example a halogen lamp or a xenon lamp, arranged in a reflector, and which is preferably autonomous, that is to say which is able to be lit. or extinguished separately from the other optical modules of the headlamp device in which it is installed if it comprises several optical modules.
  • a light source for example a halogen lamp or a xenon lamp
  • the present invention is more particularly adapted to the optical modules of the first family.
  • a generic elliptical type projector device is typically of the type of those shown in FIG. figure 1 .
  • a sectional and side view of a dipped beam 100 which essentially comprises a reflector 101, of generally ellipsoidal shape, a light source 102, emitting a plurality of light rays 103 and arranged in the vicinity of top of the reflector 101, and an exit surface 104, for example a plastic ice, a light beam 106.
  • the light rays 103 are passed through, either directly or after reflection on the reflector 101, a projection lens 105, characterized by an input face 110 and an output face 111.
  • the light beam 106 projects the light beam 106 whose orientation and range depend in particular on the arrangement and the optical characteristics of the lens 105, the shape of the reflector 101, the position of the light source 102 within the reflector and the possible presence of a cover and the position thereof.
  • a central portion of the light source 102 is disposed in the focal zone of a first focus F1 of the reflector 101, and the object focus of the projection lens 105 is in the focal zone of a second focus F2. of the reflector 101.
  • any light beam 103 emitted by the central portion of the light source 102 passes through the second focus F2 of the reflector 101 and leaves the projection lens 105 horizontally.
  • a cover 108 is interposed between the reflector 101 and the projection lens 105.
  • the cover 108 is disposed in a plane parallel to the projection lens 105, approximately at the object focal plane of the lens, so that that the image of the cache is emitted to infinity. Due to the presence of such a mask 108, the light beam 106 that is actually emitted by the projector device 100 is not emitted above a cutoff line determined by the shape of an upper portion 109 of the cache 108.
  • the areas of the reflector that are deprived are areas that are used to spread the width of light flux generated by the projector device considered.
  • the object of the invention proposes a solution to the problems that have just been exposed.
  • it is proposed to produce a module in which, despite the presence of a transverse lamp, the luminous flux produced is satisfactory.
  • it is proposed to equip the optical module according to the invention with complementary mirrors which make it possible, in addition to the main reflector, to recover light rays that would have been lost without their presence, in order to integrate them into the overall light beam produced by the projector device in which the optical module according to the invention is integrated.
  • the additional mirrors also perform a spreading of the light beam produced.
  • this first mirror is thus arranged with respect to the main reflector so as to be in the lower part of the module. It is preferably arranged at least partly under the optical axis of the main reflector, and preferably predominantly / entirely below it. It is for example arranged to face the main reflector, with its upper edge at the same height or at a height close to, or at a height less than, that of the light source.
  • transverse position is meant the fact that the lamp extends: in a direction substantially perpendicular to the optical axis, (for example represented by a vector 203 in one of the figures which will be detailed more far), the orientation of the lamp can change, more or less ten degrees, including five degrees, around a direction exactly perpendicular to the optical axis; preferably in a substantially horizontal plane, that is to say in a plane that can be inclined up to plus or minus ten degrees, in particular five degrees, with respect to a plane strictly horizontal.
  • the module comprises a cache
  • the first mirror is disposed between the light source and the cache, with preferably the upper edge of the mirror being below the upper edge of the cache.
  • optical module according to the invention insofar as they do not exclude each other, are combined according to all the possibilities of association to lead to different embodiments of the invention.
  • the present invention also relates to a vehicle headlight comprising the module described above, and the motor vehicle equipped with such projectors.
  • the shape of the first mirror is globally hyperbolic, and that of the second mirror is globally parabolic.
  • the term "globally parabolic”, “globally hyperbolic”, or “globally elliptical” refers to volumes of which a given planar section corresponds to a curve whose generic mathematical representation known to the closest is respectively a parabola, a hyperbola or an ellipse.
  • the light recuperator 213 is in one piece and is made of a transparent material, glass or plastic such as polymethacrylate or polycarbonate. It is disposed at the bottom of the lens 208 and has an edge 222, orthogonal to the plane of the figure 2 which passes through the second focus F3 of the main reflector 201. The light rays reaching the second focus F3, and which are then derived from this second focus F3, give rise to a wave with a cylindrical wavefront.
  • the recuperator has a "corner” (F3) which is the intersection between its upper upper face and its lower face, it is this corner that allows to obtain a cut in the beam coming out of this element. Rays reaching the recuperator "above” this corner do not participate in said beam.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP08160599A 2007-07-25 2008-07-17 Optisches Modul mit Lichtquelle für Scheinwerfer eines Kraftfahrzeugs Withdrawn EP2019258A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0705439A FR2919377B1 (fr) 2007-07-25 2007-07-25 Module optique a source lumineuse transverse pour projecteur automobile

Publications (1)

Publication Number Publication Date
EP2019258A1 true EP2019258A1 (de) 2009-01-28

Family

ID=39154044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08160599A Withdrawn EP2019258A1 (de) 2007-07-25 2008-07-17 Optisches Modul mit Lichtquelle für Scheinwerfer eines Kraftfahrzeugs

Country Status (3)

Country Link
EP (1) EP2019258A1 (de)
JP (1) JP2009032694A (de)
FR (1) FR2919377B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2366940A3 (de) * 2010-03-01 2016-05-11 Stanley Electric Co., Ltd. Projektionsschweinwerfer für Motorräder
CN110094685A (zh) * 2019-06-12 2019-08-06 佛山市升阳光学科技有限公司 一种具有多种工作状态的照明装置
CN114761729A (zh) * 2019-12-20 2022-07-15 Zkw集团有限责任公司 一种用于机动车前照灯的投射模块

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5621785B2 (ja) 2009-12-21 2014-11-12 コニカミノルタ株式会社 偏光板の製造方法
JP5716576B2 (ja) * 2011-06-30 2015-05-13 スタンレー電気株式会社 車両用灯具ユニット
JP5831788B2 (ja) * 2011-07-01 2015-12-09 スタンレー電気株式会社 車両用灯具ユニット
FR2998352B1 (fr) * 2012-11-16 2018-08-10 Valeo Vision Dispositifs d'eclairage et/ou de signalisation pour vehicule automobile
KR101928751B1 (ko) * 2015-12-11 2018-12-13 에스엘 주식회사 차량용 램프
DE112018004366B4 (de) * 2017-11-21 2021-11-04 Hasco Vision Technology Co., Ltd. Optisches System für einen Autoscheinwerfer, Autoscheinwerfer-Baugruppe und Automobil
CN108534085B (zh) * 2018-05-10 2023-05-30 华域视觉科技(上海)有限公司 一种用于pes近光模组的反射镜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213532A2 (de) * 2000-12-05 2002-06-12 Stanley Electric Co., Ltd. Fahrzeugscheinwerfer mit einem verstellbaren Reflektorabschnitt und einem verstellbaren Blendenabschnitt zur selektiven Beleuchtung einer bestimmten Zone vor dem Fahrzeug
EP1219887A2 (de) * 2000-12-25 2002-07-03 Stanley Electric Co., Ltd. Fahrzeugscheinwerfer mit einer verstellbaren Blende und einer verstellbaren Reflektorfläche zur Erzeugung eines Abblend- und Fernlichtbündels
US20040022067A1 (en) * 2002-05-13 2004-02-05 Stanley Electric Co., Ltd. Vehicle lamp and method
US20060120096A1 (en) * 2004-12-03 2006-06-08 Koito Manufacturing Co., Ltd. Vehicle headlamp
EP1855051A1 (de) 2006-05-12 2007-11-14 Valeo Vision Optisches Modul eines Scheinwerfers für Kraftfahrzeuge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1213532A2 (de) * 2000-12-05 2002-06-12 Stanley Electric Co., Ltd. Fahrzeugscheinwerfer mit einem verstellbaren Reflektorabschnitt und einem verstellbaren Blendenabschnitt zur selektiven Beleuchtung einer bestimmten Zone vor dem Fahrzeug
EP1219887A2 (de) * 2000-12-25 2002-07-03 Stanley Electric Co., Ltd. Fahrzeugscheinwerfer mit einer verstellbaren Blende und einer verstellbaren Reflektorfläche zur Erzeugung eines Abblend- und Fernlichtbündels
US20040022067A1 (en) * 2002-05-13 2004-02-05 Stanley Electric Co., Ltd. Vehicle lamp and method
US20060120096A1 (en) * 2004-12-03 2006-06-08 Koito Manufacturing Co., Ltd. Vehicle headlamp
EP1855051A1 (de) 2006-05-12 2007-11-14 Valeo Vision Optisches Modul eines Scheinwerfers für Kraftfahrzeuge
FR2901012A1 (fr) 2006-05-12 2007-11-16 Valeo Vision Sa Module optique de projecteur pour vehicule automobile

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2366940A3 (de) * 2010-03-01 2016-05-11 Stanley Electric Co., Ltd. Projektionsschweinwerfer für Motorräder
CN110094685A (zh) * 2019-06-12 2019-08-06 佛山市升阳光学科技有限公司 一种具有多种工作状态的照明装置
CN110094685B (zh) * 2019-06-12 2024-04-26 佛山市升阳光学科技有限公司 一种具有多种工作状态的照明装置
CN114761729A (zh) * 2019-12-20 2022-07-15 Zkw集团有限责任公司 一种用于机动车前照灯的投射模块
CN114761729B (zh) * 2019-12-20 2024-03-01 Zkw集团有限责任公司 一种用于机动车前照灯的投射模块

Also Published As

Publication number Publication date
FR2919377B1 (fr) 2013-08-23
FR2919377A1 (fr) 2009-01-30
JP2009032694A (ja) 2009-02-12

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