EP0466605B1 - Réflecteur pour un dispositif d'éclairage de véhicule automobile, et projecteur et feu de signalisation incorporant un tel réflecteur - Google Patents

Réflecteur pour un dispositif d'éclairage de véhicule automobile, et projecteur et feu de signalisation incorporant un tel réflecteur Download PDF

Info

Publication number
EP0466605B1
EP0466605B1 EP91401951A EP91401951A EP0466605B1 EP 0466605 B1 EP0466605 B1 EP 0466605B1 EP 91401951 A EP91401951 A EP 91401951A EP 91401951 A EP91401951 A EP 91401951A EP 0466605 B1 EP0466605 B1 EP 0466605B1
Authority
EP
European Patent Office
Prior art keywords
reflector
horizontal
deflection
vertical
light
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
EP91401951A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0466605A1 (fr
Inventor
Eric Blusseau
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 EP0466605A1 publication Critical patent/EP0466605A1/fr
Application granted granted Critical
Publication of EP0466605B1 publication Critical patent/EP0466605B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • 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
    • F21S41/335—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with continuity at the junction between adjacent areas

Definitions

  • the present invention relates generally to automotive lighting, and more particularly to a reflector of new design usable in a headlamp and in a signaling light, as well as a headlamp and a signaling light incorporating such a reflector.
  • a reflector which comprises central and lateral zones of conventional design, and two modified intermediate zones.
  • a reflector is capable of generating a cut beam, in particular a European standard beam with a so-called "V" cut, which has a large width and which defines the two half-planes over a large extent. cut-off (see in particular page 8, lines 1-15 of this request).
  • Another object of this known type of reflector is to ensure that the light rays bypass a cache of direct light located in front of the lamp.
  • patent FR-A-2 634 003 discloses a reflector comprising, between main zones designed to give the beam a certain width, transition zones. This reflector corresponds to the preamble of claim 1. Such transition zones, or hyperbolas, do not, however, make it possible to avoid, by their own fact or by the very fact of the design of the main zones, zones of excessive concentration. of light appear at the level of the ice.
  • the present invention aims to overcome the drawbacks of the prior art and to provide a reflector which, by cooperating with a suitably positioned light source, is able to offer by itself a very wide beam, very homogeneous and defining a possible cut over a very large area, and which generates at the level of the glass a very homogeneous distribution of light, avoiding that a heating of said glass occurs at certain points thereof.
  • Another object of the invention is to propose at the same time a reflector capable of providing a lateral spreading of the beam greater than what was possible with the prior reflectors.
  • the invention firstly relates to a reflector for a lighting device of a motor vehicle as defined in claim 1.
  • a preferred aspect of the reflector is set out in claim 2.
  • the invention relates to a headlight for a motor vehicle having the features of claim 3.
  • the closing glass can be, if desired, substantially inclined relative to the vertical and / or relative to the horizontal.
  • the invention relates to a signaling light for a motor vehicle as defined in claim 5.
  • the lens comprises means for spreading the beam essentially in the vertical direction only.
  • a signaling light for a motor vehicle is proposed as defined in claim 7.
  • the lens comprises means for spreading the beam essentially in the horizontal direction only.
  • the spreading means are preferably constituted by parallel ridges oriented perpendicular to the direction of spreading.
  • the reflector designated by the reference 20, comprises at least in a central region a plurality of reflective zones which are in this case separated from each other by vertical planes parallel to an optical axis defined by the reflector and designated by Ox. The optical role of these zones will be explained later.
  • each of the zones is connected to its neighbor continuously in second order, that is to say that, on either side of the transition plane considered, the planes tangent to the reflecting surface are the same. In other words, there is no kink or break in the reflective surface.
  • y GL and y DL are the end dimensions, to the left and to the right of the center of the reflector, of a central region of the reflector produced according to the invention; at these dimensions, the reflected rays undergo a zero horizontal deviation; y G 2 and y D 2 are dimensions at which the reflected rays undergo a first maximum horizontal deviation; y G and y D are dimensions at which the reflected rays undergo zero horizontal deviation; and y GM and y DM are dimensions at which the reflected rays undergo a second maximum horizontal deviation.
  • ⁇ GF and ⁇ DF are the angles of first maximum horizontal deviation of the reflected rays, of negative signs
  • ⁇ G and ⁇ D are the angles of second maximum horizontal deviation of the reflected rays, of positive signs
  • NB is a dimensionless positive real number expressing the degree of deformation (with respect to a parabolic section) of the central region of the reflector between the dimensions y G and y GL on the one hand and the dimensions y D and y DL on the other go
  • NC is a dimensionless positive real number expressing the degree of deformation (with respect to a parabolic section) of the central region between y G and y D
  • f G and f D are basic focal distances respectively to the left and to the right of the vertex O of the reflector.
  • the equation of the reflecting surface involves yet another group of parameters, the values of which are determined from the parameters mentioned so far and vary according to the dimension according to y, denoted y0 , from the current point on the horizontal generator represented in FIG. 2 with respect to the dimensions of the various axial vertical planes mentioned above.
  • This other group of parameters includes the parameters ⁇ , ⁇ 1, ⁇ , ⁇ 1, f0, x DIF , y S , y M , y L and N.
  • the central region of the reflector in the case where it is desired that the beam obtained comprises a spot of central concentration of light intensity greater than a given threshold (imposed for example by a regulation), is extended on one side or two sides by one or two zones whose horizontal profile is parabolic (zones 204g and 204d), so that all the reflected rays propagate in vertical planes essentially parallel to the optical axis 0x as illustrated.
  • a given threshold imposed for example by a regulation
  • FIG. 3 It is also observed in FIG. 3 that the light rays at the level of the closing glass 30 are well dispersed. More precisely, it appears that the ice is not the seat of any excessive convergence or concentration of light rays.
  • FIGS. 4a and 4b have shown on this subject isolux curves measured on the ice, corresponding respectively to a reflector of conventional design (parabola associated with a standard lamp H4) and to a reflector of the present invention. For each curve is indicated the corresponding value in kilolux. The maximum light intensity obtained is 142 kilolux in the prior art, and 92 kilolux with the present invention.
  • the path of the reflected rays is such that it allows the incorporation of a direct light mask known per se, designated by the reference 11 and shown diagrammatically in dashed lines, without that none of the reflected rays is intercepted by this cache.
  • a signaling light conventionally comprises a lamp incorporating a filament 10, a reflector 20 and a closing globe 30.
  • the reflector and of the parabolic kind, and essentially spherical balls are provided on the surface of the globe for ensure proper dispersion of the beam formed in order to meet photometric regulatory requirements. More specifically, the balls provide dispersion upwards and downwards as well as laterally to the left and to the right, so that the fire appears with satisfactory light intensity when viewed at an angle to the optical axis.
  • a reflector of the type described above is used in order to spread the beam in one direction (horizontal or vertical), while using the globe to spread the beam in the 'other direction (vertical or horizontal).
  • the globe since the globe must only spread in one direction, one can use on it no longer balls, but streaks, horizontal or vertical.
  • This aspect of the invention is particularly interesting in particular from an aesthetic point of view, the current criteria increasingly requiring the use of globes of striated appearance in one direction or the other. With a lamp according to the invention, this can be obtained without requiring significant modification of the components of the lamp, therefore without significantly increasing the cost price.
  • FIG. 9 represents a light, the reflector 20 of which spreads the beam in a horizontal direction (spreading angles ⁇ H ), while the globe 30 is equipped for example on its internal surface with horizontal ridges 31, in particular cylindrical, which spread in a vertical direction according to the spreading angles ⁇ V.
  • the reflector is designed to spread the beam vertically (angles ⁇ V ) while the globe 30 has vertical streaks 31 to perform the horizontal spreading at angles ⁇ H. Such goes particularly well with a projector with vertical streaks on its lens.
  • the concepts as described above are used to make the reflector, since there is then the advantage of obtaining an extremely homogeneous distribution of light at the level of the globe.
  • these concepts apply to a rotation of 90 ° near, obtained simply by permutation of the coordinates x and y.
  • reflectors according to the present invention can be produced by machining a mold using a computer-aided manufacturing apparatus, appropriately programmed and into which the basic parameters necessary will have been introduced after having chosen them. values.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
EP91401951A 1990-07-13 1991-07-12 Réflecteur pour un dispositif d'éclairage de véhicule automobile, et projecteur et feu de signalisation incorporant un tel réflecteur Expired - Lifetime EP0466605B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9008964 1990-07-13
FR9008964A FR2664677A1 (fr) 1990-07-13 1990-07-13 Reflecteur pour un dispositif d'eclairage de vehicule automobile, et projecteur et feu de signalisation incorporant un tel reflecteur.

Publications (2)

Publication Number Publication Date
EP0466605A1 EP0466605A1 (fr) 1992-01-15
EP0466605B1 true EP0466605B1 (fr) 1995-08-23

Family

ID=9398699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91401951A Expired - Lifetime EP0466605B1 (fr) 1990-07-13 1991-07-12 Réflecteur pour un dispositif d'éclairage de véhicule automobile, et projecteur et feu de signalisation incorporant un tel réflecteur

Country Status (4)

Country Link
EP (1) EP0466605B1 (enrdf_load_stackoverflow)
DE (1) DE69112312T2 (enrdf_load_stackoverflow)
ES (1) ES2079599T3 (enrdf_load_stackoverflow)
FR (1) FR2664677A1 (enrdf_load_stackoverflow)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5584573A (en) * 1992-03-02 1996-12-17 Robert Bosch Gmbh Method of producing headlight for vehicle and headlight produced thereby
DE4240594C2 (de) * 1992-03-02 2002-10-24 Bosch Gmbh Robert Kraftfahrzeugscheinwerfer, insbesondere Nebelscheinwerfer, mit horizontaler Lichtstärkeverteilung
DE29519938U1 (de) * 1995-12-15 1996-02-15 Zizala Lichtsysteme Gmbh Doppelreflektorscheinwerfer
FR2751051B1 (fr) * 1996-07-11 1998-11-06 Valeo Vision Projecteur de vehicule automobile comportant un cache de lumiere directe a bras support vertical et un miroir adapte
FR2755748B1 (fr) * 1996-11-08 1999-01-29 Valeo Vision Projecteur de vehicule automobile, comportant une lampe a decharge a occulteurs et un reflecteur multi-zones
ATE376504T1 (de) 1996-12-16 2007-11-15 Valeo Vision Fahrzeugscheinwerfer- einstelleinrichtung des reflektors
FR2760070B1 (fr) * 1997-02-21 1999-05-28 Valeo Vision Projecteur comportant une lampe a deux filaments pour engendrer un faisceau coupe et un faisceau non coupe
FR2760067B1 (fr) * 1997-02-21 1999-05-14 Valeo Vision Projecteur de vehicule automobile a miroir a zones juxtaposees lateralement, et procede de fabrication d'un tel miroir
FR2760068B1 (fr) * 1997-02-21 1999-05-14 Valeo Vision Projecteur de vehicule automobile a miroir a zones juxtaposees lateralement, et procede de fabrication d'un tel miroir
FR2763666B1 (fr) * 1997-05-23 1999-08-13 Valeo Vision Projecteur de vehicule automobile a miroir generateur de faisceau large et a glace striee
FR2767904B1 (fr) * 1997-09-03 1999-11-26 Valeo Vision Miroir de projecteur de vehicule automobile pour virages, et projecteur l'incorporant
FR2776366B1 (fr) 1998-03-19 2000-06-30 Valeo Vision Projecteur de virage pour vehicule automobile, susceptible d'emettre des faisceaux differents
FR2769687B1 (fr) 1997-10-13 2000-03-03 Valeo Vision Ensemble de projecteurs gauche et droit de vehicule automobile, a proprietes photometriques ameliorees
FR2774149B1 (fr) 1998-01-28 2000-04-14 Valeo Vision Projecteur de vehicule automobile, comportant une source transversale et apte a engendrer un faisceau a coupure non rectiligne
FR2774151B1 (fr) 1998-01-28 2000-04-14 Valeo Vision Projecteur de vehicule automobile a source lumineuse virtuelle
FR2774150B1 (fr) 1998-01-28 2000-04-14 Valeo Vision Projecteur a source transversale pour vehicule automobile, susceptilble d'emettre un faisceau a coupure nette
FR2777976B1 (fr) 1998-04-23 2000-06-09 Valeo Vision Projecteur a faisceau variable, notamment pour vehicules, et ensemble de projecteurs de ce type
FR2794845B1 (fr) 1999-06-08 2001-08-17 Valeo Vision Projecteur equipe d'une lampe a double source, notamment projecteur croisement route pour vehicule automobile
JP4031600B2 (ja) * 1999-10-01 2008-01-09 株式会社小糸製作所 車両用灯具の反射鏡の反射面決定方法
FR2803014B1 (fr) * 1999-12-23 2002-05-24 Valeo Vision Feu de signalisation de vehicule automobile, en particulier feu de brouillard, a compacite et plage eclairante ameliorees
FR2803566B1 (fr) 2000-01-07 2002-05-24 Valeo Vision Feu de signalisation apte a engendrer un flux incline, pour vehicule automobile
FR2818210B1 (fr) 2000-12-20 2003-04-11 Valeo Vision Projecteur tournant pour vehicule automobile comportant une lampe a deux sources
JP2002245814A (ja) * 2001-02-20 2002-08-30 Koito Mfg Co Ltd 車両用灯具の反射鏡の反射面決定方法、及び車両用灯具
FR2837908B1 (fr) 2002-03-28 2004-06-11 Valeo Vision Projecteur d'eclairage equipe d'un reflecteur elliptique pivotant et d'une lentille fixe pour la realisation d'un faisceau de virage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609148B1 (fr) * 1986-12-30 1991-07-12 Cibie Projecteurs Projecteur de vehicule automobile comportant un reflecteur a surface complexe a fond modifie
DE68917198T2 (de) * 1988-05-09 1994-11-17 Ichiko Industries Ltd Scheinwerfer für Kraftfahrzeuge.
FR2634003B1 (fr) * 1988-07-05 1991-05-24 Cibie Projecteurs Projecteur de vehicule automobile a reflecteur multi-zones et procede de lissage d'un tel reflecteur
JPH0810561B2 (ja) * 1988-11-30 1996-01-31 市光工業株式会社 前照灯の光学系

Also Published As

Publication number Publication date
FR2664677A1 (fr) 1992-01-17
DE69112312D1 (de) 1995-09-28
EP0466605A1 (fr) 1992-01-15
FR2664677B1 (enrdf_load_stackoverflow) 1994-04-22
DE69112312T2 (de) 1996-01-18
ES2079599T3 (es) 1996-01-16

Similar Documents

Publication Publication Date Title
EP0466605B1 (fr) Réflecteur pour un dispositif d'éclairage de véhicule automobile, et projecteur et feu de signalisation incorporant un tel réflecteur
EP1762776B1 (fr) Procédé de construction d'un module de projecteur lumineux pour véhicule automobile
EP0373065B1 (fr) Projecteur de véhicule automobile, comportant un réflecteur à surface complexe à zones intermédiaires modifiées
EP3147557B1 (fr) Element optique primaire pour module lumineux de vehicule automobile
EP2871406B1 (fr) Elément optique primaire, module lumineux et projecteur pour véhicule automobile
EP0250284B1 (fr) Projecteur de croisement sans coupelle à concentration décalée
EP0312442B1 (fr) Projecteur de route de faible hauteur à grande récupération de flux pour véhicule automobile
EP0250313B1 (fr) Projecteur additionnel à un projecteur de croisement pour véhicule automobile
EP0256930B1 (fr) Projecteur antibrouillard à filament transversal pour véhicule automobile
WO2023006673A1 (fr) Module lumineux pour phare de vehicule
EP1870633A1 (fr) Module de projecteur avec diode électroluminescente
FR2609148A1 (fr) Projecteur de vehicule automobile comportant un reflecteur a surface complexe a fond modifie
EP0628765B1 (fr) Projecteur du genre elliptique pour véhicule automobile
EP0645578A2 (fr) Projecteur à glace lisse, notamment pour véhicule automobile, et procédé de fabrication du réflecteur d'un tel projecteur
FR2609146A1 (fr) Projecteur de vehicule automobile comportant un reflecteur parabolique a fond modifie
FR2602306A1 (fr) Projecteur croisement-route a deux filaments transversaux pour vehicule automobile
FR2634003A1 (fr) Projecteur de vehicule automobile a reflecteur multi-zones et procede de lissage d'un tel reflecteur
FR2773604A1 (fr) Projecteur du genre elliptique pour vehicule automobile
EP0933586B1 (fr) Projecteur de véhicule automobile, comportant une source transversale et apte à engendrer un faisceau à coupure non rectiligne
EP3575675B1 (fr) Module lumineux a coupure avec reflecteur a zones
EP0736726B1 (fr) Projecteur de véhicule automobile capable d'émettre un faisceau délimité par une coupure à deux demi-plans décalés en hauteur
EP1400748A1 (fr) Dispositif projecteur de véhicule automobile à miroir et élément de déviation conjugués avec coupure non plate
FR2898662A1 (fr) Procede de construction d'un module de projecteur lumineux pour vehicule automobile, module et projecteur
FR2614247A1 (fr) Feu de signalisation a plage eclairante large et a haut rendement pour vehicule automobile.
FR2782149A1 (fr) Projecteur de vehicule automobile pourvu d'une lampe a deux filaments et d'un miroir perfectionnes

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

Kind code of ref document: A1

Designated state(s): DE ES GB IT

17P Request for examination filed

Effective date: 19920309

17Q First examination report despatched

Effective date: 19931008

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VALEO VISION

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REF Corresponds to:

Ref document number: 69112312

Country of ref document: DE

Date of ref document: 19950928

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19951009

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2079599

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070711

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070717

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070710

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070719

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080712

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080714

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080714