EP1596126A1 - Signal- bzw Beleuchtungseinrichtung mit einem optischen Teil zur selbstständigen Erzeugung eines vorschriftsmässigen Lichtbündels - Google Patents

Signal- bzw Beleuchtungseinrichtung mit einem optischen Teil zur selbstständigen Erzeugung eines vorschriftsmässigen Lichtbündels Download PDF

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Publication number
EP1596126A1
EP1596126A1 EP05291025A EP05291025A EP1596126A1 EP 1596126 A1 EP1596126 A1 EP 1596126A1 EP 05291025 A EP05291025 A EP 05291025A EP 05291025 A EP05291025 A EP 05291025A EP 1596126 A1 EP1596126 A1 EP 1596126A1
Authority
EP
European Patent Office
Prior art keywords
zone
annular
annular zone
optical
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.)
Granted
Application number
EP05291025A
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English (en)
French (fr)
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EP1596126B1 (de
Inventor
Patrice Collot
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
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Valeo Vision SAS
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Publication of EP1596126A1 publication Critical patent/EP1596126A1/de
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Publication of EP1596126B1 publication Critical patent/EP1596126B1/de
Not-in-force legal-status Critical Current
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/0091—Reflectors for light sources 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • 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
    • F21S43/31—Optical layout thereof
    • F21S43/315—Optical layout thereof 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors

Definitions

  • the invention proposes a device for lighting or signaling in particular for a motor vehicle.
  • the invention more particularly proposes a device lighting or signaling, in particular for a vehicle automotive, planned to achieve a regulatory beam lighting or signaling, having an optical axis oriented from the back to the front, on which is arranged a source which is intended to emit a luminous flux towards the front, an optical part that is arranged at the front of the source light, which is generally centered on the optical axis, and which is intended to collect the light rays emitted by the source by means of its back side of entrance and to distribute the rays bright forward, through its front exit face, following at least one determined direction, of the type in which the piece optics includes, from its center to its periphery, an area center consisting of a Fresnel lens, a first zone provided on the exit side with elements prismatic working in refraction, and a second zone provided on the side of the entrance face with elements prismatic working in total reflection.
  • a signaling device of this type is described and represented in particular in document FR-A-2 507 741.
  • the entrance face of the optical part allows you to recover most of the light beam emitted by a lamp.
  • the light rays are diffused towards the front, by the exit face of the optical part, according to directions substantially parallel to the optical axis.
  • the optical part therefore constitutes a recuperator for the luminous flux emitted by the lamp.
  • This signaling device requires an ice cream deviation, which is arranged at the front of the optical part and which is provided, on its rear face of entry, of dioptric elements cylindrical, in order to achieve a photometric distribution in accordance with the regulations in force in signaling.
  • Diversion ice may consist of ice closing of the signaling device or by an ice intermediate, called intermediate screen, which is arranged between the recuperator and the closing glass.
  • the present invention aims in particular to provide a improvement to the signaling device described in the document FR-A-2,507,741.
  • the present invention aims at simplifying the signaling device and to reduce its manufacturing cost in removing the intermediate screen.
  • the invention proposes a lighting device or of the type described above, characterized in that what the exit face of the central area and / or the exit face of the first annular zone consist of several annular sectors of distinct profiles, in axial section, and in that that the exit face of the second annular zone is provided of refractive optical elements, the annular sectors of distinct profiles of the exit face of the central area and / or the first annular zone and the refractive optical elements of the second annular zone distributing the light rays towards forward following non-parallel directions so that the luminous flux emitted by the source forms, at the exit of the room optical, the regulatory beam of lighting or signaling.
  • FIGS. 1 to 3 show a fire signaling 10 of a motor vehicle which is realized according to the teachings of the invention and which is provided to achieve a regulatory signaling beam corresponding to a given signaling function, by example a direction indicator light function.
  • a traffic light fulfilling a function direction indicator light shall form, on a measuring screen placed at ten meters, an image which has the overall shape of a cross.
  • This cross is defined by characteristic points that are arranged on the measurement screen and which must receive each a luminous intensity whose value must be understood within a specified interval.
  • a traffic light producing a reversing light function must form, on the measurement screen, a rectangle of determined dimensions and whose length is parallel to the horizontal plane.
  • the signaling beam is globally centered on a longitudinal optical axis A-A which is oriented from the rear towards the front, which corresponds to an orientation of the left towards the right considering FIGS. 1 to 4.
  • the traffic light 10 comprises a light source 12 which is constituted here by the filament of a lamp 14 and which is arranged on the optical axis A-A.
  • the lamp 14 is mounted inside a housing 15, at through a rear transverse wall 17 of the housing 15.
  • the lamp 14 can be mounted on an intermediate part called mask which is itself attached to the housing 15.
  • the lamp 14 can be encapsulated in a globe or balloon 13 in colored transparent material.
  • the traffic light 10 comprises an optical part 16, at the front of the light source 12, which is mounted on the face before 19 of the rear transverse wall 17.
  • the optical part 16 is generally centered on the axis optical A-A, and it is intended to collect light rays emitted by the source 12 by means of its input rear face 18 and to distribute the light rays forward, through its exit front panel 20.
  • the entrance face 18 has globally a form of revolution around the optical axis A-A.
  • the optical part 16 comprises, respectively from its center towards its periphery, a central zone Z 0 , a first annular zone Z 1 , a second annular zone Z 2 , and a peripheral annular zone Z 3 .
  • the four zones Z 0 , Z 1 , Z 2 , Z 3 are here adjacent two by two by their peripheral circumferential edges.
  • the central zone Z 0 consists of a Fresnel lens which has an input rear face 22 extending in a transverse plane.
  • the central zone Z 0 retrieves, for example, the light rays emitted by the source 12 at a solid angle of about twenty degrees centered on the optical axis AA.
  • the first annular zone Z 1 has an inlet rear face 24 of generally frustoconical shape and of decreasing diameter towards the front.
  • the first annular zone Z 1 retrieves, for example, the light rays emitted by the source 12 at an angle of between twenty and forty five degrees with respect to the optical axis AA.
  • the second annular zone Z 2 comprises an input rear face 26 which is provided with prismatic elements 28 of revolution about the optical axis AA, these prismatic elements 28 being designed to work in total reflection.
  • the second annular zone Z 2 retrieves, for example, the light rays emitted by the source 12 at an angle of between forty five and sixty degrees with respect to the optical axis AA.
  • the peripheral annular zone Z 3 consists of a series of juxtaposed juxtaposed juxtaposed elements working in total reflection, each prismatic element 30 having an input facet 32, a total reflection facet 34, and an output facet 36. input facets 32 are separated from each other by recesses 38.
  • the peripheral annular zone Z 3 retrieves, for example, the light rays emitted by the source 12 at an angle of between sixty and one hundred and twenty degrees with respect to the optical axis AA.
  • the input face 18 of the optical part 16 is made according to the teachings of FR-A-2,507,741. We will therefore refer to this document to obtain more details on the technical characteristics of the entrance face 18, including page 4, line 29, to page 8, line 14.
  • the optical part 16 according to the invention differs from that described in document FR-A-2 507 741 mainly by its exit face 20.
  • the outlet face 40 of the central zone Z 0 and the outlet face 42 of the first annular zone Z 1 comprise prismatic elements working in refraction.
  • the outlet face 40 of the central zone Z 0 and the outlet face 42 of the first annular zone Z 1 consist of several annular sectors of distinct profiles, in axial section, which distribute the radii luminous forward in non-parallel directions.
  • the profile of the annular sectors is determined in a manner that the luminous flux emitted by the source 12 forms, directly at the output of optical part 16, the regulatory beam of signaling.
  • the outlet face 40 of the central zone Z 0 comprises, in the center, a transverse circular facet 44 surrounded by two concentric rings which are each composed of four annular sectors 46, 48, 50, 52.
  • the annular sectors 46, 48, 50, 52 of the two rings are here aligned radially in pairs which delimits, in the central zone Z 0 , four angular sectors a1, a2, a3, a4.
  • the angular sectors a1, a2, a3, a4 are delimited by lines in dotted line.
  • the central zone Z 0 here admits a first plane of symmetry P1 which extends horizontally along the optical axis AA, and a second plane of symmetry P2 which extends vertically along the optical axis AA.
  • the central zone Z 0 here comprises two angular sectors, respectively upper a1 and lower a2, which are symmetrical with respect to the first plane of symmetry and which have an angular dimension greater than the angular dimension of the two other angular sectors, respectively left a3 and right a4.
  • the annular sectors 46, 48 of the central zone Z 0 which are arranged in the upper angular sectors a1 and lower a2 have a profile which defines facets oriented on the opposite side to the optical axis AA
  • the annular sectors 50, 52 of the central zone Z 0 which are arranged in the left angular sectors a3 and right a4 have a profile which defines facets oriented towards the optical axis AA.
  • the central zone Z 0 distributes the light rays received on its input face 22 partly upwards and partly downwards relative to the axis. optical AA, and partly to the sides of the optical axis AA, so as to fulfill the regulatory requirements for luminous intensity in the different parts of the signaling beam.
  • the prismatic elements consist of annular sectors 54, 56, 58, 60, which are distributed here in angular sectors a1, a2, a3, a4 identical to those of the central zone Z 0 .
  • the first annular zone Z 1 thus admits the same plane of symmetry P1, P2 as the central zone Z 0 .
  • the circumferential ends of the annular sectors 58, 60 arranged in the left angular sectors a3 and right a4 are aligned radially with the circumferential ends of the annular sectors 50, 52 corresponding to the central zone Z 0 .
  • the annular sectors 54, 56 of the first annular zone Z 1 which are arranged in the angular sectors upper a1 and lower a2 have an inclination, with respect to the optical axis AA, which is less than the inclination of the annular sectors 58, 60 which are arranged in the left angular sectors a3 and right a4.
  • the outlet face 62 of the second annular zone A2 is provided with refractive optical elements 64, called tori, which distribute the light rays forward in non-parallel directions so as to complete the regulatory signaling beam. made by the central zone Z 0 and the first annular zone Z 1 .
  • the refractive optical elements 64 of the second annular zone Z 2 constitute a mesh of elementary facets, generally in the form of cushions, designed to each individually produce a luminous brush having specific photometric characteristics capable of completing several parts of the regulatory signaling beam.
  • the refractive optical elements 64 form here contiguous cushions but the cushions could be arranged from non-joined way, or following non-joined lines.
  • Each optical refractive element 64 can be provided to deflect the light symmetrically with respect to an axis longitudinal or be provided to deflect the light to one side determined from the optical axis A-A.
  • the refractive optical elements 64 of the second annular zone Z 2 consist of substantially parallel ridges.
  • the exit surface 62 of the second annular zone Z 2 may comprise several zones each having striations parallel to a given direction, the determined direction being different for each zone so that each zone completes the signaling beam in a distinct region of the beam. signaling.
  • refractive optical elements 64 are conceivable such that prismatic elements forming circular crowns centered on the optical axis A-A, each ring having a defined number of angular sectors of distinct profiles.
  • the peripheral annular zone Z 3 of the traffic light 10 differs from the rear peripheral zone of document FR-A-2 507 741 in that the profile of the exit facets 36 of each prismatic element 30, in axial section, is provided for distributing the light rays forward in non-parallel directions so as to complete the regulatory signaling beam produced by the central zone Z 0 , by the first annular zone Z 1 , and by the second zone ring Z 2 .
  • the housing 15 of the traffic light 10 is closed at the front of the exit face 20 of the optical part 16 by a protective glass 66.
  • the protective glass 66 isolates the exit face 20 from the optical part 16 with respect to the external environment.
  • the protective glass 66 is transparent and it has no means to deflect the light rays, in such a way that the light rays coming from the exit face 20 of the optical part 16 pass through the protective glass 66 without to be deviated.
  • the optical characteristics of the different zones Z 0 , Z 1 , Z 2 , Z 3 of the optical part 16 must be adapted to take account of the deviation of the light rays as they pass through the protective glass 66.
  • streaks, or optical elements of refraction of another type can be arranged on the face rear of the protective glass 66 so as to achieve a part of the distribution of light rays in the beam regulatory signaling.
  • the peripheral annular zone Z 3 may be replaced by a mask 68 made of opaque material, which forms an annular housing for the lamp 14.
  • the mask 68 is fixed on the rear transverse wall 17 of the housing 15 and has a circular opening 70 at the front which is closed by the optical part 16 according to the invention, that is to say by the central zone Z 0 , the first annular zone Z 1 and the second annular zone Z 2 .
  • the optical part 16 is fixed on the mask 68.
  • Such a signaling light 10 makes it possible to fulfill the intended function even in the absence of a peripheral annular zone Z 3 , since its luminous efficiency is sufficient to fulfill the regulatory requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP05291025A 2004-05-13 2005-05-12 Signal- bzw Beleuchtungseinrichtung mit einem optischen Teil zur selbstständigen Erzeugung eines vorschriftsmässigen Lichtbündels Not-in-force EP1596126B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0405225 2004-05-13
FR0405225A FR2870323B1 (fr) 2004-05-13 2004-05-13 Dispositif d'eclairage ou de signalisation comportant une piece optique qui realise un faisceau reglementaire de maniere autonome

Publications (2)

Publication Number Publication Date
EP1596126A1 true EP1596126A1 (de) 2005-11-16
EP1596126B1 EP1596126B1 (de) 2007-05-30

Family

ID=34942277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291025A Not-in-force EP1596126B1 (de) 2004-05-13 2005-05-12 Signal- bzw Beleuchtungseinrichtung mit einem optischen Teil zur selbstständigen Erzeugung eines vorschriftsmässigen Lichtbündels

Country Status (5)

Country Link
EP (1) EP1596126B1 (de)
AT (1) ATE363626T1 (de)
DE (1) DE602005001228T2 (de)
ES (1) ES2288290T3 (de)
FR (1) FR2870323B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008052635A1 (de) * 2006-10-30 2008-05-08 Bayerische Motoren Werke Aktiengesellschaft Fahrzeugscheinwerfer
WO2012055950A1 (de) * 2010-10-28 2012-05-03 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für fahrzeuge

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018115229A1 (de) * 2018-03-29 2019-10-02 Automotive Lighting Reutlingen Gmbh Licht-Zwischenscheibe für eine Kraftfahrzeugleuchte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549934A1 (fr) * 1983-07-27 1985-02-01 Cibie Projecteurs Dispositif emetteur de lumiere, notamment pour l'eclairage et la signalisation automobile, comportant un systeme recuperateur de flux perfectionne
FR2627256A1 (fr) * 1988-02-15 1989-08-18 Cibie Projecteurs Feu de signalisation a plage eclairante large et homogene pour vehicule automobile
EP0354961A1 (de) * 1988-02-05 1990-02-21 Nauchno-Proizvodstvennoe Obiedinenie Po Avtoelektronike I Avtotraktornomu Elektrooborudovaniju Ganzgepresster kollimator
EP0509679A2 (de) * 1991-04-16 1992-10-21 Britax Vega Limited Fahrzeugleuchte
FR2836208A1 (fr) * 2002-02-21 2003-08-22 Valeo Vision Feu de signalisation comportant une piece optique realisant une fonction de signalisation de maniere autonome

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549934A1 (fr) * 1983-07-27 1985-02-01 Cibie Projecteurs Dispositif emetteur de lumiere, notamment pour l'eclairage et la signalisation automobile, comportant un systeme recuperateur de flux perfectionne
EP0354961A1 (de) * 1988-02-05 1990-02-21 Nauchno-Proizvodstvennoe Obiedinenie Po Avtoelektronike I Avtotraktornomu Elektrooborudovaniju Ganzgepresster kollimator
FR2627256A1 (fr) * 1988-02-15 1989-08-18 Cibie Projecteurs Feu de signalisation a plage eclairante large et homogene pour vehicule automobile
EP0509679A2 (de) * 1991-04-16 1992-10-21 Britax Vega Limited Fahrzeugleuchte
FR2836208A1 (fr) * 2002-02-21 2003-08-22 Valeo Vision Feu de signalisation comportant une piece optique realisant une fonction de signalisation de maniere autonome

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008052635A1 (de) * 2006-10-30 2008-05-08 Bayerische Motoren Werke Aktiengesellschaft Fahrzeugscheinwerfer
WO2012055950A1 (de) * 2010-10-28 2012-05-03 Hella Kgaa Hueck & Co. Beleuchtungsvorrichtung für fahrzeuge

Also Published As

Publication number Publication date
ATE363626T1 (de) 2007-06-15
FR2870323A1 (fr) 2005-11-18
EP1596126B1 (de) 2007-05-30
DE602005001228T2 (de) 2008-01-24
DE602005001228D1 (de) 2007-07-12
ES2288290T3 (es) 2008-01-01
FR2870323B1 (fr) 2006-08-04

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