EP1850064A1 - Vorrichtung zur Beleuchtung oder Signalisierung mit Tiefenwirkung - Google Patents

Vorrichtung zur Beleuchtung oder Signalisierung mit Tiefenwirkung Download PDF

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Publication number
EP1850064A1
EP1850064A1 EP07290461A EP07290461A EP1850064A1 EP 1850064 A1 EP1850064 A1 EP 1850064A1 EP 07290461 A EP07290461 A EP 07290461A EP 07290461 A EP07290461 A EP 07290461A EP 1850064 A1 EP1850064 A1 EP 1850064A1
Authority
EP
European Patent Office
Prior art keywords
screen
face
screens
stack
optical
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
EP07290461A
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English (en)
French (fr)
Other versions
EP1850064B1 (de
Inventor
Alcina Tanghe
Benjamin Thierry
Jean-Claude Gasquet
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 date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of EP1850064A1 publication Critical patent/EP1850064A1/de
Application granted granted Critical
Publication of EP1850064B1 publication Critical patent/EP1850064B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide
    • 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
    • F21S41/24—Light guides
    • 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
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • 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
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities

Definitions

  • the present invention relates to a lighting or signaling device having a depth appearance.
  • the main purpose of the invention is to propose a solution to meet the demands of constant innovation from car manufacturers, particularly in terms of the style of certain types of automotive headlamps; for this purpose, it proposes a particular technical embodiment adaptable to different types of lighting and / or signaling devices.
  • the invention proposes a lighting or signaling device in which a particular output block of the device under consideration is constituted, said output block consisting of a stack of screens independent of each other; each screen comprises a plurality of optical patterns, made in its thickness, capable of deflecting light signals emitted by a light source of the device in question; the spread of the light beam at the output of the lighting or signaling device considered is thus adjustable in a first direction of diffusion, corresponding, for each screen considered, to a direction parallel to a plane defined by said screen and containing the optical patterns , and in a second direction of diffusion, corresponding to a direction parallel to a plane generally perpendicular to the planes defined by the screens, the spreading according to the second diffusion plane depending on the relative position of the different screens.
  • the invention therefore essentially relates to a lighting or signaling device for a motor vehicle, including in particular at least one light source emitting a light beam, consisting of a plurality of signals light, in the direction of an output block of the lighting or signaling device, characterized in that the output block comprises in particular a stack of screens, said stack consisting of at least a first screen and a second screen, each screen having an input face receiving the light signals and an output face, the input face and the output face of each screen being joined by an upper face and a lower face defining between them a thickness of screen, at least one of the screens comprising at least one optical pattern made in the thickness of the screen in question, consisting of a through cavity formed in the screen that includes it.
  • the present invention also relates to a screen of the stack of screens present in the lighting or signaling device having the main characteristics and possibly one or more secondary characteristics which have just been mentioned, said screen having a face d an input and an output face, the input face and the output face of each screen being joined by an upper face and a lower face defining a screen thickness, characterized in that the screen comprises at least one pattern optical made in the thickness of the screen considered.
  • the present invention also relates to a motor vehicle equipped with a lighting or signaling device comprising the main characteristics and possibly one or more additional features just mentioned.
  • FIG. 1 there is shown an example screen or optical system 100 according to the invention, intended to be positioned at an output block of a lighting or signaling device, including a motor vehicle.
  • the screen 100 is made of a transparent material, ie a material that can be traversed by the light; in a particular example, the material used is polymethylmethacrylate (PMMA) or special polycarbonate (PC) guide.
  • PMMA polymethylmethacrylate
  • PC special polycarbonate
  • the screen 100 is in the form of a plate, with an input face 101 intended to receive light signals 200, visible in FIG. 2, an exit face 102 visible from the outside of the lighting or signaling device. wherein the screen 100 is intended to be positioned, an upper face 103 and a lower face not visible in the figures.
  • two screens 100 are of the same shape if they are identical in terms of dimensions and relative positions of the four faces that have just been mentioned.
  • the measurement of the distance between the lower face and the upper face gives the thickness of the screen 100.
  • the upper face and the lower face are flat and parallel, thus giving the screen a plate shape. They could also be regulated surfaces, that is to say generated by a line that moves according to a predetermined law. They could also be flat and not be parallel to each other, and thus form an angle between them.
  • the embodiment with flat surfaces, or set according to the same law, is a particularly advantageous feature during a stacking operation of the screens 100, stacking which will be detailed later.
  • the input face 101 and the exit face 102 are curved, their radius of curvature being infinite, the input faces 101 and output 102 then having a generator for a straight line.
  • the term "curve” qualifies lines, rows or surfaces whose radius may tend towards infinity, the rows or rows then being straight lines and the surfaces of the planes.
  • the curves defined by the sections of these input faces and emerging in a longitudinal or transverse plane are not necessarily parallel. Their shape is determined primarily by the function of the device they equip, and by the position of said device on the vehicle considered.
  • each optical pattern 104 consists of a through cavity, which creates a hole in the thickness of the screen 100, thus constituting dioptres.
  • the optical patterns are here arranged in a first curved row 105 and in a second curved row 106, parallel to the input face 101, the first curved row 105 being the row closest to said input face.
  • the first curved row 105 consists of convergent type optical patterns 107, whereas the second curved row 106 consists of divergent or convergent optical patterns 108.
  • FIG. 2 shows a second example of a screen or optical system 100 ', seen from above, that is by positioning itself above the upper face 103.
  • the input faces 101' and output 102 ' are straight, aligned with an axis OY, essentially for the sake of simplification of the figure.
  • the input face 101 ' receives a plurality of light signals 200, which are derived from a light beam emitted by at least one light source, not shown, of the lighting or signaling device according to the invention.
  • the light source may be of conventional type, that is to say a halogen or xenon lamp, or light emitting diode type.
  • the light beams reach the input face 101 'in the form of a parallel beam, all of these light signals being parallel to each other; the light signals reach the input face 101 while being perpendicular to the latter; the light signals reaching the input face 101 being perpendicular to the latter constitute a light plane.
  • the light signals are here oriented along an axis OX, an axis OZ directed upwards and perpendicular to the upper face 103 completing the two other axes which have just been cited to form an orthogonal reference (OX, OY, OZ).
  • the axis OZ is vertical.
  • a parallel beam can be obtained according to different technical solutions, in particular by using a lamp associated with a windshield, or a lamp associated with a Fresnel screen, or a lamp associated with a reflector, or a light-emitting diode associated with a lighting system. Fresnel, directly made on the input face 101 or 101 'of the optical system 100 or 100'.
  • This Fresnel system may consist of a conventional Fresnel lens, preferably of revolution around the emission axis of the light source used. It may also consist of a Fresnel cylindrical lens, preferably linear to simplify manufacture, and in particular demolding. In the latter case, the beam is collimated only in the plane parallel to the screen constituting the optical system 100 or 100 '.
  • optical patterns 104 contained in the material of the screens according to the invention ensures the return of a portion of the light, for example sunlight, which would penetrate into the device. lighting or signaling by the exit face of the screen in question, thus giving a glittering appearance to the device under consideration, even when the light source that it comprises is not lit and also masks the actual sources to the origin of the beams, thus improving the homogeneity of the lit system.
  • FIG. 3-A shows a first example of a stack 300, along the axis OZ, of optical systems or screens having the same shape as the shape of the screen 100.
  • the input faces 101 of each screen 100 are aligned, the exit faces 102 of each screen 100 are curved, so that the stack 300 has an overall exit face 301 consisting of the juxtaposition of the exit faces 102 of each screen 100, continuously rounded, the face of global output 301 having no discontinuities or inflection zones.
  • the output of the lighting or signaling device comprising the stack 300 thus provides a distribution 302 of the output light beam, with a main convergence point 303 of the output light beam. .
  • the output of the lighting or signaling device comprising the stack 300' is obtained with a distribution 305 of the output light beam, with as many convergence points 306 of the overall output beam as there are screens 100 ', five in this case.
  • the points of convergence 306 are aligned in a direction parallel to the input faces 101 '; they are thus contained in a vertical plane.
  • FIG. 4-A shows an example of stack 400 in which the screens 100 are progressively shifted along the axis OX.
  • FIG. 4-B at the output of the lighting or signaling device comprising the stack 400, a distribution 401 of the output light beam is obtained, with as many convergence points 402 of the overall output beam. that there are screens 100, five in the present case.
  • the convergence points 402 are aligned in a direction parallel to the entry face 101, they are thus contained in an oblique plane.
  • FIG. 5-A, respectively 5-B, shows an example of stack 500, respectively 500 ', in which the screens 100 are arranged so as to have an overall exit face 501, respectively 501', respectively hollow.
  • a distribution 502 of the output light beam is obtained, with as many points of convergence 503 of the overall output beam. that there are screens 100, five in the present case.
  • the convergence points 503 are arranged in a curve parallel to the overall output face 501.
  • the optical patterns it is chosen not to superimpose, along the vertical axis, corresponding to the axis OZ, the optical patterns.
  • the stacking operation of the different screens can be performed by any appropriate technique.
  • This ink converts the light energy emitted by a laser into heat energy which allows one or more screens constituting the stack to be locally heated and consequently to ensure the connection by thermofusion of the thermoplastic material. It is also possible to ensure this connection via suitable mechanical systems.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP20070290461 2006-04-24 2007-04-13 Vorrichtung zur Beleuchtung oder Signalisierung mit Tiefenwirkung Active EP1850064B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0603640A FR2900220B1 (fr) 2006-04-24 2006-04-24 Dispositif d'eclairage ou de signalisation avec effet de profondeur.

Publications (2)

Publication Number Publication Date
EP1850064A1 true EP1850064A1 (de) 2007-10-31
EP1850064B1 EP1850064B1 (de) 2015-05-06

Family

ID=37496634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070290461 Active EP1850064B1 (de) 2006-04-24 2007-04-13 Vorrichtung zur Beleuchtung oder Signalisierung mit Tiefenwirkung

Country Status (5)

Country Link
US (1) US20070247862A1 (de)
EP (1) EP1850064B1 (de)
JP (1) JP2007294459A (de)
CN (1) CN101063515A (de)
FR (1) FR2900220B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013225950A1 (de) 2013-12-13 2015-06-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung
FR3044744A1 (fr) * 2015-12-08 2017-06-09 Peugeot Citroen Automobiles Sa Dispositif d’eclairage a guide de lumiere comprenant des trous polygonaux pour reflechir des photons
EP2347173B1 (de) * 2008-11-04 2017-08-02 Günther Conzatti Beleuchtungseinrichtung mit reduzierter blendwirkung
WO2023275100A1 (fr) * 2021-06-30 2023-01-05 Valeo Vision Module d'éclairage automobile vertical avec aspects éclairés jour et nuit identiques

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2928110B1 (fr) 2008-03-03 2010-06-11 Valeo Vision Systeme optique avec fonction principale pour vehicule automobile
AT507530B1 (de) * 2008-11-04 2013-05-15 Al Systems Gmbh Lichtleitelement für eine beleuchtungseinrichtung sowie beleuchtungseinrichtung
AT518163B1 (de) * 2016-02-17 2017-08-15 Zkw Group Gmbh Lichtleiter für einen Fahrzeugscheinwerfer
IT201600121517A1 (it) * 2016-11-30 2018-05-30 Automotive Lighting Italia Spa Fanale automobilistico comprendente una porzione di emissione luminosa ad effetto opalescente
CN109539156B (zh) * 2019-02-01 2024-01-23 华域视觉科技(上海)有限公司 一种车灯***和车灯

Citations (5)

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US2480178A (en) * 1946-05-08 1949-08-30 Ivan H Zinberg Light conductor
EP0911574A2 (de) * 1997-10-21 1999-04-28 Compagnie D'equipements Automobiles Axo Scintex Lichtabgabeoptik für Fahrzeugsignalleuchten
US20030007344A1 (en) * 1995-06-27 2003-01-09 Parker Jeffery R. Light emitting panel assemblies
FR2831943A1 (fr) * 2001-11-02 2003-05-09 Koito Mfg Co Ltd Lampe de vehicule a diodes photoemissives
US20030156329A1 (en) * 2002-02-20 2003-08-21 Wilkinson Kerry E. Optical screen apparatus having alternate opaque and clear layers and method of making such apparatus

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US5365412A (en) * 1993-01-07 1994-11-15 Ford Motor Company Low profile illuminator
US20020058931A1 (en) * 1995-06-27 2002-05-16 Jeffrey R. Parker Light delivery system and applications thereof
US5613751A (en) * 1995-06-27 1997-03-25 Lumitex, Inc. Light emitting panel assemblies
US6185356B1 (en) * 1995-06-27 2001-02-06 Lumitex, Inc. Protective cover for a lighting device
US5975711A (en) * 1995-06-27 1999-11-02 Lumitex, Inc. Integrated display panel assemblies
US7108414B2 (en) * 1995-06-27 2006-09-19 Solid State Opto Limited Light emitting panel assemblies
US20040135273A1 (en) * 1995-06-27 2004-07-15 Parker Jeffery R. Methods of making a pattern of optical element shapes on a roll for use in making optical elements on or in substrates
US5692827A (en) * 1996-03-01 1997-12-02 Ford Motor Company Tail lamp for an automotive vehicle using an elongated hyperbolic cylinder
US6739744B2 (en) * 1997-07-02 2004-05-25 Lumitex, Inc. Light delivery systems and applications thereof
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US6591049B2 (en) * 1997-07-02 2003-07-08 Lumitex, Inc. Light delivery systems and applications thereof
US20050024849A1 (en) * 1999-02-23 2005-02-03 Parker Jeffery R. Methods of cutting or forming cavities in a substrate for use in making optical films, components or wave guides
US6752505B2 (en) * 1999-02-23 2004-06-22 Solid State Opto Limited Light redirecting films and film systems
US6827456B2 (en) * 1999-02-23 2004-12-07 Solid State Opto Limited Transreflectors, transreflector systems and displays and methods of making transreflectors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2480178A (en) * 1946-05-08 1949-08-30 Ivan H Zinberg Light conductor
US20030007344A1 (en) * 1995-06-27 2003-01-09 Parker Jeffery R. Light emitting panel assemblies
EP0911574A2 (de) * 1997-10-21 1999-04-28 Compagnie D'equipements Automobiles Axo Scintex Lichtabgabeoptik für Fahrzeugsignalleuchten
FR2831943A1 (fr) * 2001-11-02 2003-05-09 Koito Mfg Co Ltd Lampe de vehicule a diodes photoemissives
US20030156329A1 (en) * 2002-02-20 2003-08-21 Wilkinson Kerry E. Optical screen apparatus having alternate opaque and clear layers and method of making such apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2347173B1 (de) * 2008-11-04 2017-08-02 Günther Conzatti Beleuchtungseinrichtung mit reduzierter blendwirkung
DE102013225950A1 (de) 2013-12-13 2015-06-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung
WO2015086307A1 (de) 2013-12-13 2015-06-18 Automotive Lighting Reutlingen Gmbh Kraftfahrzeugbeleuchtungseinrichtung
FR3044744A1 (fr) * 2015-12-08 2017-06-09 Peugeot Citroen Automobiles Sa Dispositif d’eclairage a guide de lumiere comprenant des trous polygonaux pour reflechir des photons
WO2017098107A1 (fr) * 2015-12-08 2017-06-15 Peugeot Citroen Automobiles Sa Dispositif d'éclairage à guide de lumière comprenant des trous polygonaux pour réfléchir des photons
WO2023275100A1 (fr) * 2021-06-30 2023-01-05 Valeo Vision Module d'éclairage automobile vertical avec aspects éclairés jour et nuit identiques
FR3124844A1 (fr) * 2021-06-30 2023-01-06 Valeo Vision Module d’éclairage automobile vertical avec aspects éclairés jour et nuit identiques

Also Published As

Publication number Publication date
CN101063515A (zh) 2007-10-31
EP1850064B1 (de) 2015-05-06
FR2900220A1 (fr) 2007-10-26
JP2007294459A (ja) 2007-11-08
FR2900220B1 (fr) 2008-07-18
US20070247862A1 (en) 2007-10-25

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