EP2244006A1 - Optische Vorrichtung, insbesondere zur Beleuchtung und/oder Signalisierung für Kraftfahrzeug - Google Patents

Optische Vorrichtung, insbesondere zur Beleuchtung und/oder Signalisierung für Kraftfahrzeug Download PDF

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Publication number
EP2244006A1
EP2244006A1 EP10159629A EP10159629A EP2244006A1 EP 2244006 A1 EP2244006 A1 EP 2244006A1 EP 10159629 A EP10159629 A EP 10159629A EP 10159629 A EP10159629 A EP 10159629A EP 2244006 A1 EP2244006 A1 EP 2244006A1
Authority
EP
European Patent Office
Prior art keywords
mirror
light source
light
optical
lighting
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Withdrawn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
EP10159629A
Other languages
English (en)
French (fr)
Inventor
Whilk Goncalves
Etienne Pauty
Otavio-Henrique Reis
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 EP2244006A1 publication Critical patent/EP2244006A1/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Withdrawn legal-status Critical Current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
    • 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
    • F21S41/10—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
    • F21S41/30—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
    • F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
    • F21S41/332—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with continuity 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
    • 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
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source

Definitions

  • the invention relates to an optical device, especially for a motor vehicle, such as a lighting or signaling device.
  • the photometry of the front and rear signaling functions of a motor vehicle includes so-called 'zones of visibility' zones which typically extend over angular ranges from about 45 ° on the inside of the vehicle to about 80 ° on the outside of the vehicle, these angles being measured in a plane horizontal with respect to an optical axis. These visibility zones also have a vertical opening of about 10 ° on either side of the horizontal plane.
  • the light intensities to be ensured in these areas of visibility are relatively low, being of the order for example of Candela at 0.01 Candela.
  • the optical technician is faced with the fact that cheek walls, the shape of the traffic light ice, the depth of the fire cavity, can affect the visibility of the fire.
  • Solutions to overcome this problem of visibility of the lights would be to add streaks and / or prisms on the ice of exit of the fire, or on walls of the function, to use internal reflections or the guidance of the light inside ice or add dioptres.
  • the invention aims in particular to overcome the aforementioned drawbacks.
  • the second mirror is arranged to create a virtual auxiliary light source, in front of the light source and in particular at a location separate from the focal point (s) of the first mirror.
  • the invention because of the creation of a virtual light source, in addition to the real light source, especially above geometrically diaphragmated areas of the fire, it is possible to illuminate areas of visibility without change exterior fire style and further to solve, if any, visibility problems, difficult to solve otherwise.
  • the second mirror may be distinct from the first mirror, this second mirror being in particular arranged at a non-zero distance from the first mirror.
  • the virtual auxiliary light source is outside the optical device.
  • the virtual auxiliary light source may be in the vicinity of an ice, preferably being outside the optical device, in particular in front of the ice of the optical device
  • the virtual light source is formed inside the optical device.
  • the second mirror has a substantially ellipsoid sector-shaped reflection face, or alternatively, in the form of a paraboloid sector.
  • the second mirror comprises first and second optical foci, the first being placed substantially on the light source, in particular, if necessary, on a filament of the light source when this is formed of a filament lamp, and the second optical focus corresponding to the virtual auxiliary source.
  • the second mirror has a substantially annular shape, closed or open, for example a substantially half-annular shape, optionally with, in cross section, a shape of elliptical sector or parabola.
  • the second mirror is placed substantially in the extension of the first mirror.
  • the second mirror can be placed together with the first mirror, these mirrors being, if desired, made in one piece or alternatively separately.
  • the second mirror is arranged in such a way that the second beam is directed substantially downwards and / or to the right or to the left when the optical device is assembled on the motor vehicle, which device can then be used for example for a front position lamp of the vehicle.
  • the second mirror has a reflection face having a symmetry of revolution, especially around the optical axis.
  • the area of the second mirror is smaller than that of the first mirror.
  • the first mirror has substantially a paraboloid sector shape or as an ellipsoid variant.
  • the device may comprise a housing and the first mirror is disposed in this housing, and at least one inner wall of the housing at least partially intercepts the geometric path of the first light beam, in particular because the first light source is placed at a depth relatively important in the case.
  • the device according to the invention comprises an ice through which the first and second light beams propagate and the second mirror is arranged so that the second beam arrives on an area of ice with streaks and / or prisms to diffuse the light.
  • this area of the ice is relatively small, for example this area spanning less than 30% or 20% or 10% of the ice surface.
  • the device is arranged to produce a lighting or signaling light that is visible in areas of visibility, which extend for example over an angular range, measured in a substantially horizontal plane, ranging from about 45 ° to the inside of the vehicle up to about 80 ° towards the outside of the vehicle, these angles being measured with respect to the optical axis.
  • These areas of visibility may also have a vertical opening for example of about 10 ° on either side of the horizontal plane.
  • the device is arranged to serve as a direction indicator light, a front or rear position light, or a stop light.
  • the optical device comprises a single light source.
  • the angular aperture of the first beam is smaller than that of the second beam from the virtual auxiliary source.
  • the second beam from the virtual auxiliary source has an average propagation axis forming a non-zero angle with the optical axis.
  • the light source 3 may for example be an incandescent lamp such as a P21W or P215W lamp, a halogen lamp such as a H21W lamp, or one or more LEDs.
  • the second mirror 4 is arranged to create a virtual auxiliary light source, in front of the light source 3 and at a location distinct from the focal point (s) of the first mirror 2.
  • the second mirror 4 has two foci, one F1 being substantially on a filament 7 of the lamp 3 and the other F2 focus being outside the traffic light 1, in front of an ice 8 of the traffic light .
  • the second beam generated in association with the second mirror 4 converges towards this second focus F2 so as to generate the virtual light source, as shown in FIG. figure 4 .
  • the second beam comprises light rays R having an angle of inclination A2 with respect to the optical axis X greater than the maximum angle of inclination of the rays of the first beam with respect to this optical axis X.
  • An example of an inclination angle A1 for a radius associated with the first mirror 2 is illustrated on the figure 4 .
  • the first mirror 2 has substantially a paraboloid sector shape with a circular edge 20, with a central orifice 11 for the passage of the lamp 3.
  • the first mirror 2 may have a reflective surface or a set of reflective surfaces whose edges have evolutive rays in both directions. This type of surface is still called 'pillow'.
  • the second mirror 4 is distinct from the first mirror 2, this second mirror 4 having a circular edge 21 at a non-zero distance from the edge 20 of the first mirror 2.
  • the second mirror 4 comprises a closed annular inner reflection face 9, with a cross-sectional shape of elliptical or parabolic sector.
  • the mirrors 2 and 4 are placed in a housing 10 having a relatively large depth so that, in the absence of the second mirror 4, visibility areas could not be reached.
  • the diameter of the second mirror 4 is smaller than that of the first mirror 2.
  • the second mirror 4 is placed substantially in the extension of the first mirror 2.
  • the second mirror 4 may be placed together with the first mirror 2, these mirrors being, if desired, made in one piece or separately.
  • the second mirror 4 is arranged so that the second beam is directed, from the focus F2, substantially downwardly when the device optical 1 is assembled on the motor vehicle, this device 1 can then be used for example for a front position lamp of the vehicle.
  • the second beam instead of being directed downward, may be, if desired, directed to the right or left.
  • the area of the second mirror 4 is smaller than that of the first mirror 2.
  • the first mirror 2 may have a substantially paraboloidal sector shape and the second mirror 4 shaped ellipsoid sector.
  • the mirror 8 of the device 1 through which the first and second light beams and the second mirror are propagated may be arranged in such a way that the second beam arrives at an area 15 of the ice provided with ridges and / or prisms 16.
  • this area of ice 8 is relatively small, for example this area spanning less than 30% or 20% or 10% of the ice surface.
  • the second mirror 4 can be arranged at a small non-zero distance from the first mirror 2.
  • the device 1 is arranged to serve as a direction indicator light, a front or rear position light, or a stop light.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP10159629A 2009-04-24 2010-04-12 Optische Vorrichtung, insbesondere zur Beleuchtung und/oder Signalisierung für Kraftfahrzeug Withdrawn EP2244006A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0952714A FR2944747B1 (fr) 2009-04-24 2009-04-24 Dispositif optique, notamment d'eclairage et/ou de signalisation de vehicule automobile

Publications (1)

Publication Number Publication Date
EP2244006A1 true EP2244006A1 (de) 2010-10-27

Family

ID=41258484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10159629A Withdrawn EP2244006A1 (de) 2009-04-24 2010-04-12 Optische Vorrichtung, insbesondere zur Beleuchtung und/oder Signalisierung für Kraftfahrzeug

Country Status (3)

Country Link
EP (1) EP2244006A1 (de)
BR (1) BRPI1004401A2 (de)
FR (1) FR2944747B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112624B4 (de) * 2013-07-18 2021-05-12 Hyundai Motor Company Führungsleuchten-Vorrichtung für ein Fahrzeug

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798132A (en) * 1928-04-25 1931-03-31 Paul A Bredsvold Automobile head lamp
FR2590351A1 (fr) * 1985-11-15 1987-05-22 Cibie Projecteurs Feu de signalisation a double fonction pour vehicule
FR2759149A1 (fr) * 1997-02-06 1998-08-07 Bosch Gmbh Robert Projecteur pour vehicule
EP1291240A2 (de) * 2001-09-07 2003-03-12 Hella KG Hueck & Co. Fahrzeugscheinwerfer
US20040027836A1 (en) * 2002-08-09 2004-02-12 Koito Manufacturing Co., Ltd. Projection-type vehicular headlamp having improved lateral illumination
EP1724519A2 (de) * 2005-05-18 2006-11-22 Ichikoh Industries, Ltd. Kfz-Scheinwerfergerät
EP1790906A1 (de) * 2005-11-24 2007-05-30 Valeo Vision Beleuchtungs- oder Signaleinrichtung für Kraftfahrzeuge

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1798132A (en) * 1928-04-25 1931-03-31 Paul A Bredsvold Automobile head lamp
FR2590351A1 (fr) * 1985-11-15 1987-05-22 Cibie Projecteurs Feu de signalisation a double fonction pour vehicule
FR2759149A1 (fr) * 1997-02-06 1998-08-07 Bosch Gmbh Robert Projecteur pour vehicule
EP1291240A2 (de) * 2001-09-07 2003-03-12 Hella KG Hueck & Co. Fahrzeugscheinwerfer
US20040027836A1 (en) * 2002-08-09 2004-02-12 Koito Manufacturing Co., Ltd. Projection-type vehicular headlamp having improved lateral illumination
EP1724519A2 (de) * 2005-05-18 2006-11-22 Ichikoh Industries, Ltd. Kfz-Scheinwerfergerät
EP1790906A1 (de) * 2005-11-24 2007-05-30 Valeo Vision Beleuchtungs- oder Signaleinrichtung für Kraftfahrzeuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112624B4 (de) * 2013-07-18 2021-05-12 Hyundai Motor Company Führungsleuchten-Vorrichtung für ein Fahrzeug

Also Published As

Publication number Publication date
BRPI1004401A2 (pt) 2012-02-14
FR2944747A1 (fr) 2010-10-29
FR2944747B1 (fr) 2015-10-09

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