EP4303482B1 - Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes - Google Patents

Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes Download PDF

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Publication number
EP4303482B1
EP4303482B1 EP22183552.3A EP22183552A EP4303482B1 EP 4303482 B1 EP4303482 B1 EP 4303482B1 EP 22183552 A EP22183552 A EP 22183552A EP 4303482 B1 EP4303482 B1 EP 4303482B1
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EP
European Patent Office
Prior art keywords
light
lighting
primary optics
lighting unit
primary
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.)
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Application number
EP22183552.3A
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German (de)
English (en)
Other versions
EP4303482A1 (fr
Inventor
Nina Brauner
Sunjung Park
Kristijan Velebit
Dominic Gottsman
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ZKW Group GmbH
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ZKW Group GmbH
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Filing date
Publication date
Application filed by ZKW Group GmbH filed Critical ZKW Group GmbH
Priority to EP22183552.3A priority Critical patent/EP4303482B1/fr
Priority to KR1020230071046A priority patent/KR20240007063A/ko
Priority to JP2023100658A priority patent/JP7577163B2/ja
Priority to US18/218,398 priority patent/US11940113B2/en
Priority to CN202310822159.0A priority patent/CN117366508A/zh
Publication of EP4303482A1 publication Critical patent/EP4303482A1/fr
Application granted granted Critical
Publication of EP4303482B1 publication Critical patent/EP4303482B1/fr
Active 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
    • F21S41/10—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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel 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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • 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
    • 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
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/10—Protection of lighting devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/17—Arrangement or contour of the emitted light for regions other than high beam or low beam
    • F21W2102/19—Arrangement or contour of the emitted light for regions other than high beam or low beam for curves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the lighting device is assumed to be arranged horizontally.
  • side by side means “side by side.”
  • side by side can also be understood as synonymous with “one above the other” or “one below the other.”
  • the invention relates to a motor vehicle headlight comprising such a lighting device.
  • a holding element is provided that is transparent, in particular translucent and/or light-conducting. This configuration allows, for example, the primary optics devices and the holding element to be manufactured together in an injection molding process.
  • So-called stray light i.e., light from a light source that is undesirably coupled into the holder via its primary optics device, can propagate through total internal reflection in the holder and exit at undesirable locations.
  • light from the light source of a first lighting unit can exit in the area of a second lighting unit and exit into the exterior via the secondary optics device of the second lighting unit, which can negatively influence the light distribution generated by the second lighting unit.
  • WO 2017/054020 A1 discloses a lighting device for motor vehicle headlights.
  • an overcoupling protection device is arranged in the body between two adjacent receiving through-openings, wherein the overcoupling protection device is formed from a through-opening in the body, wherein the through-opening of the overcoupling protection device is delimited by two side surfaces, which side surfaces face the receiving through-openings in which the primary optical devices are arranged, and wherein at least one of the side surfaces, namely that side surface or those side surfaces whose opposite boundary surface of a receiving through-opening is contacted by the primary optical device arranged in the receiving through-opening, has light deflecting means which are designed to deflect at least a part, preferably all of the light rays which enter the body from the primary optical device which faces the side surface and contacts the opposite boundary surface and impinge on the side surface, in such a way that this part of the light rays does not enter the adjacent lighting unit or does not impinge on the secondary optical device of the adjacent lighting unit.
  • a primary optics device contacts the boundary surface(s) directly, in particular over a large area, or, as described further below, a contact element is provided with which the connection is realized.
  • the holding element and the primary optics devices are formed in one piece and preferably consist of the same material.
  • a primary optics device contacts the holding element at exactly two opposite boundary surfaces.
  • the light deflection means are configured to deflect incident light rays in such a way that the deflected light beam has a larger up/down component (z-component) than the incident light beam, and/or the light deflection means are configured to deflect incident light rays opposite to a light emission direction of the respective lighting unit).
  • the directional information refers to an assumed horizontal arrangement of the lighting device, as described above. If the arrangement is rotated relative to this assumed arrangement, the directions naturally change accordingly. For example, if the arrangement is rotated 90°, the up/down components become left/right components.
  • Light rays are thus deflected more strongly upwards or downwards and either propagate in the holding element or emerge from it, directed so far up or down and upwards/downwards that they do not hit the secondary optics or generally do not enter the adjacent lighting unit.
  • the light deflection means comprise one or more light deflection surfaces which deflect the incident light rays in such a way that these light rays do not enter the adjacent lighting unit or do not impinge on a region of the secondary optical device which is assigned to an adjacent lighting unit.
  • the light rays are generally deflected in such a way that they are not deflected forward, so that they cannot reach the secondary optics of the adjacent secondary optics device.
  • the primary optical devices of the at least two lighting units each have a main light emission direction, wherein, for example, the main light emission directions are aligned substantially in the same direction, in particular parallel to one another.
  • the side surfaces of the overcoupling protection device each run parallel to a main light emission direction of the primary optics device of the adjacent lighting unit.
  • the side surfaces of the overcoupling protection device run vertically.
  • the light deflection means are designed in the form of a grain or comprise grooves or are designed in the form of grooves, wherein the grooves preferably extend in the horizontal direction, in particular in the direction of a main light emission direction of the primary optical device of the adjacent lighting unit.
  • the grooves are straight grooves, thus extending along a straight longitudinal direction, and preferably adjacent grooves are parallel to each other.
  • the grooves can be formed in a cross-section, in particular in a cross-section normal to their longitudinal direction, e.g. triangular, in the form of a partial or semicircle, prismatic, rounded, etc.
  • each primary optical device comprises one or more projection optical elements, wherein preferably, if there are two or more projection optical elements, these are arranged in at least one row.
  • Each of these projection optics elements can be designed as a separate projection lens.
  • Each projection optics element can generate its own part of the light distribution of the lighting unit, e.g. a light segment.
  • the projection elements can be directly adjacent to one another and are preferably firmly connected to one another, in particular formed in one piece, particularly preferably from the same material.
  • the rows run horizontally and transversely, in particular at 90° to the light emission direction X1, X2 of the respective lighting unit.
  • the projection optics device is connected to the holding element by means of at least one external projection optics element.
  • the at least one primary optics device contacts the at least one boundary surface via a wedge-shaped contact element which is arranged between the boundary surface and the primary optics device, and wherein a narrower wedge surface of the contact element contacts the primary optics device and an opposite, wider wedge surface contacts the boundary surface.
  • the contact element is preferably formed from the same material as the holding element and the primary optics device; preferably, the holding element, contact element, and primary optics device are formed integrally with one another.
  • the contact element or the contact elements can be designed, in particular geometrically, in such a way that light is deflected backwards, i.e. in a direction away from the secondary optical devices and/or can be designed, in particular geometrically, in such a way that light is prevented from being coupled out of the contact element/the contact elements.
  • At least the light source of a lighting unit is designed as an LED or of the light-emitting diode type, and wherein, if several light sources are provided, these are preferably arranged in one or more rows.
  • the rows of light sources are assigned to the rows of the primary optics device, for example, in such a way that at least one light source/LED, preferably exactly one light source (LED), is assigned to each projection optics element, wherein the assigned light sources/LED are preferably assigned exclusively to this one projection optics element.
  • at least one light source/LED preferably exactly one light source (LED)
  • LED light source
  • the light sources of one lighting unit can preferably be controlled independently of those of other lighting units.
  • the light sources of a lighting unit can be controlled independently of the other light sources of this lighting unit, or groups of light sources of a lighting unit can be controlled by other groups of light sources of the lighting unit.
  • the primary optical elements are, for example, lenses, in particular biconvex lenses.
  • the light sources are preferably each located - viewed in the direction of light propagation - in front of a focal point of their primary optical element and are imaged in an enlarged manner, the image of the light source being in particular a virtual image.
  • the secondary optical devices are preferably arranged such that their focal point is generated substantially in the magnified image of the light source, in particular LED, formed by the primary optical element - in particular virtual.
  • the secondary optics devices are projection optics.
  • the at least one projection optical device or projection optical elements of the at least one projection optical device are biconvex.
  • the secondary optics devices are designed as a secondary optics device component.
  • a diaphragm in particular a wall-shaped diaphragm, is arranged between at least two lighting units, which extends from the holding element to the secondary optical devices.
  • the panel or the plurality of panels and the holding element preferably have an upper and a lower part which can be plugged together one above the other.
  • a diaphragm rests against the holding element (100) so that no light from the lighting unit can enter adjacent lighting units via a distance between the diaphragms and the holding elements.
  • the one or more diaphragms run approximately parallel to the main light emission direction of an adjacent lighting unit or parallel to the angle bisector of the main light emission directions of the two adjacent lighting units.
  • the one or more panels are in particular flat and extend essentially vertically.
  • the primary optics devices 12 each comprise precisely one primary optics element 12a, while the primary optics devices 22 each comprise a plurality of primary optics elements 22a arranged side by side in a horizontal row.
  • the four primary optics devices 12, 22 are also arranged in a row.
  • the rows run horizontally and transversely, in particular at 90° to a (main) light emission direction X1, X2 of the respective lighting unit 10, 20.
  • Each of these primary optical elements 12a, 22a can be designed as a separate projection lens.
  • the primary optical elements 12a, 22a are biconvex.
  • the light sources 11, 21 are preferably designed as LEDs, with each primary optical element 12a, 22a preferably being assigned its own LED 11, 21.
  • Each LED 11, 21, together with its primary optical element 12a, 22a, can generate an image of the light source, in particular an enlarged image, for example in the form of a light segment.
  • the primary optical elements can be directly adjacent to one another and are preferably firmly connected to one another, in particular formed in one piece, particularly preferably from the same material.
  • the light sources of one lighting unit can preferably be controlled independently of those of other lighting units.
  • the light sources of a lighting unit can be controlled independently of the other light sources of this lighting unit, or groups of light sources of a lighting unit can be controlled by other groups of light sources of the lighting unit.
  • the light sources are preferably each located - viewed in the direction of light propagation - in front of a focal point of their primary optical element and are imaged in an enlarged manner, the image of the light source being in particular a virtual image.
  • the secondary optical devices are preferably arranged such that their focal point is generated substantially in the magnified image of the light source, in particular LED, formed by the primary optical element - in particular virtual image.
  • the secondary optics devices are projection optics.
  • the secondary optics devices 31, 32 are configured as a secondary optics device component 30.
  • the primary optics device 11, 22 of each lighting unit 10, 20 is configured to direct the light emitted by the light sources 11, 21 assigned to it onto the secondary optics device 31, 32 in such a way that at least one light distribution is generated by the secondary optics device 31, 32 of the lighting unit 10, 20.
  • the light emitted by a light source onto a primary optics element is imaged by the primary optics element together with the assigned secondary optics device in the far field, i.e., e.g., on a road, as a (partial) light distribution. All light sources of a lighting unit together thus form an (overall) light distribution.
  • the lighting device 1 further comprises a holding element 100, which holds the primary optics devices 12, 22 of the lighting units 10, 20.
  • the holding element 100 is formed from a body 110 which consists of a transparent material, wherein the body 110 has adjacent receiving through-openings 101, 102 in each of which a primary optical device 12, 22 is arranged.
  • the holding element 100 and the primary optics devices 12, 22 are formed in one piece and preferably consist of the same material.
  • Each primary optics device 12, 22 is connected to at least one boundary surface 101a, 101b, 102a, 102b of the receiving through-opening 101, 102, in particular a lateral boundary surface.
  • each primary optics device 12, 22 is connected to two, preferably lateral, opposing boundary surfaces; in this specific example, the primary optics device 22 is connected to the boundary surfaces 102a, 102b and the primary optics device 12 is connected to the boundary surfaces 101a, 101b.
  • the primary optics devices are each spaced apart from the upper and lower boundary surfaces.
  • the connection to the holding element is preferably made to at least one or the outer primary optics element(s).
  • a contact area between the primary optics device and the boundary surface has a certain extent/area through which light can enter the holder and enter, for example, an adjacent lighting unit as unwanted scattered light.
  • light from the projection optics device 12 of the illumination unit 10 can enter the holding element 100 or the body 110 via the boundary surface 101a of the receiving through-opening 101 and could thus enter the adjacent illumination unit 20 as unwanted scattered light.
  • light from the projection optics device 22 of the illumination unit 20 could enter the holding element 100 or the body 110 via the boundary surface 102b of the receiving through-opening 102 and could thus enter the adjacent illumination unit 10 as unwanted scattered light.
  • an overcoupling protection device 200 is therefore arranged in the body 110, between the two adjacent receiving through-openings 101, 102, wherein the overcoupling protection device 200 is formed from a through-opening 201 in the body 110, wherein the through-opening 201 of the overcoupling protection device 200 is delimited by two side surfaces 211, 212, which side surfaces 211, 212 face the receiving through-openings 12, 22 in which the primary optical devices 12, 22 are arranged.
  • the side surfaces 211, 212 have light deflection means 220, 230 which are designed to deflect at least a part, preferably all of the light rays which enter the body 110 from a primary optical device 12, 22, which faces the side surface 211, 212 and contacts the boundary surface 101b, 102a opposite the side surface 211, 212, and which impinge on the side surface 211, 212, in such a way that this part of the light rays does not enter the adjacent lighting unit 10, 20 or does not impinge on the secondary optical device 31, 32 of the adjacent lighting unit 10, 20.
  • the light deflection means 220, 230 are designed to deflect incident light beams in such a way that the deflected light beam has a larger up/down component (z-component) than the incident light beam.
  • Light rays are thus deflected more strongly upwards or downwards and either propagate in the holding element or emerge from it, directed so far up or down and upwards/downwards that they do not hit the secondary optics or generally do not enter the adjacent lighting unit.
  • the light deflection means 220, 230 are designed to deflect incident light rays counter to the light emission direction X1, X2 of the respective lighting unit 10, 20 ( Figure 6 ).
  • the light deflection means 220, 230 comprise one or more light deflection surfaces 221, 231, which deflect the incident light rays in such a way that these light rays do not enter the adjacent lighting unit 10, 20 enter or do not impinge on a region of the secondary optical device 31, 32 which is assigned to an adjacent illumination unit 10, 20, and preferably has a deflection behavior of the light rays impinging on the side surfaces 211, 212 as described above.
  • the side surfaces 211, 212 of the overcoupling protection device 200 are, for example, vertical and are each parallel to the main light emission direction X1, X2 of the primary optics device 12, 22 of the adjacent lighting unit 10, 20.
  • the side surfaces 211, 212 of the overcoupling protection device 200 are formed as basically flat surfaces on which the light deflecting means 220, 230 are formed, so that the resulting side surface deviates from the flat shape.
  • the light deflection means 220, 230 comprise grooves or are formed in the form of grooves in the base area, wherein the grooves preferably extend in the horizontal direction, in particular parallel to the main light emission direction X1, X2 of the primary optics device 12, 22 of the adjacent lighting unit 10, 20.
  • the primary optics device 22 is directly connected to the boundary surface 102b, i.e. the outermost primary optics element 22a is directly connected to the boundary surface 102b.
  • the primary optics device 12 is not directly connected to the boundary surface 101a; rather, it is connected to the boundary surface 101a via a wedge-shaped contact element 240a.
  • the primary optics device 12 is connected to the second lateral boundary surface 101b in addition to a second such contact element 240b.
  • a narrower wedge surface of the contact element contacts the primary optics device 12, while an opposite, wider wedge surface contacts the boundary surface 102a.
  • the contact element is preferably formed from the same material as the holding element and the primary optics device; preferably, the holding element, contact element, and primary optics device are formed integrally with one another.
  • a diaphragm in particular a wall-shaped diaphragm 300, is arranged between each two lighting units 10, 20, which extends from the holding element 100 to the secondary optical devices 31, 32.
  • the panel 300 or the plurality of panels 300 and the holding element 100 preferably have an upper and a lower part, which can be plugged together one above the other.
  • the aperture rests against the holding element 100 so that no light from the lighting unit can enter adjacent lighting units via a distance between the aperture and the holding elements.
  • the one or more diaphragms run approximately parallel to the main light emission direction of an adjacent lighting unit or parallel to the angle bisector of the main light emission directions of the two adjacent lighting units.
  • the one or more panels are in particular flat and extend essentially vertically.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Claims (15)

  1. Dispositif d'éclairage (1) pour un projecteur de véhicule automobile, comprenant au moins deux
    unités d'éclairage (10, 20) disposées côte à côte ,
    chaque unité d'éclairage (10, 20) comprenant respectivement :
    - au moins une source lumineuse (11, 21), et
    - un dispositif optique primaire transparent (12, 22) associé à ladite au moins une source lumineuse (11, 21),
    - ainsi qu'un dispositif optique secondaire transparent (31, 32),
    le dispositif optique primaire (11, 22) de chaque unité d'éclairage (10, 20) étant conçu pour diriger la lumière émise par la au moins une source lumineuse (11, 21) qui lui est associée sur le dispositif optique secondaire (31, 32) de telle sorte que le dispositif optique secondaire (31, 32) de l'unité d'éclairage (10, 20) produise une distribution de lumière, le dispositif d'éclairage (1) comprenant un élément de support (100) qui supporte les dispositifs optiques primaires (12, 22) des unités d'éclairage (10, 20), l'élément de support (100) étant formé d'un corps (110) qui est constitué d'un matériau transparent, le corps (110) comportant des ouvertures de réception traversantes (101, 102) dans chacun desquels est disposé un dispositif optique primaire (12, 22), un dispositif optique primaire (12, 22) étant monté respectivement sur au moins une surface de délimitation (101a, 101b, 102a, 102b) de l'ouverture de passage de réception (101, 102) qui est tournée vers une ouverture de passage de réception (101, 102) voisine, les ouvertures de passage de réception (101, 102) étant espacées l'une de l'autre,
    caractérisé en ce que ,
    dans le corps (110), entre deux ouvertures de passage de réception (101, 102) situées l'une à côté de l'autre, est disposé un dispositif de protection contre le couplage (200), le dispositif de protection contre le couplage (200) étant formé par une ouverture de passage (201) dans le corps (110), l'ouverture de passage (201) du dispositif de protection contre le couplage (200) étant entourée par deux surfaces latérales (211, 212), lesquelles surfaces latérales (211, 212) font face aux ouvertures de passage de réception (12, 22) dans lesquelles les dispositifs optiques primaires (12, 22) sont disposés, et dans lequel au moins une des surfaces latérales (211, 212), à savoir la surface latérale ou les surfaces latérales (11 12) dont la surface de délimitation opposée à une ouverture de passage de réception (101, 102) est en contact avec le dispositif optique primaire (12, 22) disposé dans l'ouverture de passage de réception (101, 102), comporte des moyens de déviation de la lumière (220, 230) qui sont conçus pour dévier au moins une partie, de préférence la totalité, des rayons lumineux émis par le dispositif optique primaire (12, 22) qui est en contact avec la surface latérale (211, 212) et en contact avec la surface de délimitation opposée, pénètrent dans le corps (110) et frappent la surface latérale (211, 212), de telle sorte que cette partie des rayons lumineux n'entre pas dans l'unité d'éclairage adjacente (10, 20) ou ne frappe pas le dispositif optique secondaire (31, 32) de l'unité d'éclairage adjacente (10, 20).
  2. Dispositif d'éclairage selon la revendication 1, dans lequel l'élément de support (100) et les dispositifs optiques primaires (12, 22) sont réalisés d'une seule pièce et sont de préférence constitués du même matériau, un dispositif optique primaire (12, 22) étant prévu pour l'élément de support (100) sur exactement deux surfaces de délimitation opposées (101a, 101b, 102a, 102b) d'une ouverture de passage de réception (101, 102), cette réalisation d'une seule pièce, en particulier dans le même matériau, étant des surfaces de délimitation imaginaires (101a, 101b, 102a, 102b), car il n'existe pas de surface de délimitation au sens matériel proprement dit.
  3. Dispositif d'éclairage selon la revendication 1, dans lequel un dispositif optique primaire (12, 22) entre en contact avec l'élément de support (100) sur exactement deux surfaces de délimitation opposées (101a, 101b, 102a, 102b) d'une ouverture de passage de réception (101, 102).
  4. Dispositif d'éclairage selon l'une des revendications 1 à 3, dans lequel les moyens de déviation de lumière (220, 230) sont agencés pour dévier des rayons lumineux incidents de telle sorte que le rayon lumineux dévié présente une composante ascendante/descendante (composante z) supérieure à celle du rayon lumineux incident, et/ou les moyens de déviation de lumière (220, 230) sont agencés pour dévier des rayons lumineux incidents en sens inverse d'une direction d'émission de lumière (X1, X2) de l'unité d'éclairage respective (10, 20).
  5. Dispositif d'éclairage selon l'une quelconque des revendications 1 à 4, dans lequel les moyens de déflexion de lumière (220, 230) comprennent une ou plusieurs surfaces de déflexion de lumière (221, 231) qui dévient les rayons lumineux incidents de manière à ce que ces rayons lumineux n'entrent pas dans l'unité d'éclairage (10, 20) voisine ou n'arrivent pas sur une zone du dispositif optique secondaire (31, 32) associée à une unité d'éclairage (10, 20) voisine.
  6. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel les surfaces latérales (211, 212) du dispositif de protection contre le couplage (200) sont respectivement parallèles à une direction principale d'émission de lumière (X1, X2) du dispositif optique primaire (12, 22) de l'unité d'éclairage voisine (10, 20).
  7. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel les surfaces latérales (211, 212) du dispositif de protection contre le couplage (200) s'étendent verticalement.
  8. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel les moyens de déflexion de la lumière (220, 230) sont réalisés sous la forme d'un grainage ou comprennent des rainures ou sont réalisés sous la forme de rainures, les rainures s'étendant de préférence dans une direction horizontale, notamment dans la direction d'une direction principale d'émission de lumière (X1, X2) du dispositif optique primaire (12, 22) de l'unité d'éclairage adjacente (10, 20).
  9. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel au moins l'un des dispositifs optiques primaires (12, 22), de préférence chaque dispositif optique primaire (12, 22), comprend un ou plusieurs éléments optiques primaires (12a, 22a), de préférence, en présence de deux ou plusieurs éléments optiques primaires (12a, 22a), ceux-ci étant disposés sur au moins une ligne.
  10. Dispositif d'éclairage selon l'une des revendications précédentes, dans lequel ledit au moins un dispositif optique primaire (12, 22) entre en contact avec ladite au moins une surface de délimitation (101a, 101b, 102a, 102b) par l'intermédiaire d'un élément de contact en forme de coin (240a, 240b), qui est disposé entre la surface de délimitation et le dispositif optique primaire (12, 22), et dans lequel une surface en coin plus étroite (240a, 240b) de l'élément de contact (240a, 240b) est en contact avec le dispositif optique primaire (12, 22) et une surface en coin plus large opposée est en contact avec la surface de délimitation.
  11. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel au moins la source lumineuse (11, 21) d'une unité d'éclairage (10, 20), en particulier de chaque unité d'éclairage, est une LED ou est du type diode électroluminescente, et dans lequel, lorsque plusieurs sources lumineuses sont prévues, elles sont de préférence disposées en une ou plusieurs lignes.
  12. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel ledit au moins un dispositif optique de projection (12, 22) ou des éléments optiques primaires (12a, 22a) dudit au moins un dispositif optique de projection (12, 22) sont de forme biconvexe.
  13. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel les dispositifs optiques secondaires (31, 32) sont formés comme un composant de dispositif optique secondaire (30).
  14. Dispositif d'éclairage selon l'une quelconque des revendications précédentes, dans lequel un écran, notamment un écran mural (300), est disposé entre au moins deux unités d'éclairage et s'étend depuis l'élément de support (100) jusqu'aux dispositifs optiques secondaires.
  15. Projecteur de véhicule automobile comprenant un dispositif d'éclairage (1) selon l'une quelconque des revendications précédentes.
EP22183552.3A 2022-07-07 2022-07-07 Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes Active EP4303482B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP22183552.3A EP4303482B1 (fr) 2022-07-07 2022-07-07 Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes
KR1020230071046A KR20240007063A (ko) 2022-07-07 2023-06-01 서로 나란히 배열된 조명 유닛을 갖춘 자동차 전조등용 조명 장치
JP2023100658A JP7577163B2 (ja) 2022-07-07 2023-06-20 相並んで配設された照射ユニットを備えた自動車投光器用の照射装置
US18/218,398 US11940113B2 (en) 2022-07-07 2023-07-05 Illumination device for motor vehicle headlight with illumination units arranged next to one another
CN202310822159.0A CN117366508A (zh) 2022-07-07 2023-07-06 用于机动车前照灯的具有并排设置的照明单元的照明设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22183552.3A EP4303482B1 (fr) 2022-07-07 2022-07-07 Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes

Publications (2)

Publication Number Publication Date
EP4303482A1 EP4303482A1 (fr) 2024-01-10
EP4303482B1 true EP4303482B1 (fr) 2025-05-14

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EP22183552.3A Active EP4303482B1 (fr) 2022-07-07 2022-07-07 Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes

Country Status (5)

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US (1) US11940113B2 (fr)
EP (1) EP4303482B1 (fr)
JP (1) JP7577163B2 (fr)
KR (1) KR20240007063A (fr)
CN (1) CN117366508A (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517697B1 (de) 2015-09-30 2017-04-15 Zkw Group Gmbh Beleuchtungsvorrichtung für einen Kraftfahrzeugscheinwerfer
AT518551B1 (de) 2016-08-04 2017-11-15 Zkw Group Gmbh Kraftfahrzeugbeleuchtungsvorrichtung
FR3056683B1 (fr) 2016-09-26 2019-04-05 Valeo Vision Module lumineux, notamment d'eclairage et/ou de signalisation pour vehicule automobile
FR3077362B1 (fr) * 2018-01-31 2021-05-28 Valeo Vision Module lumineux pour vehicule automobile, et dispositif d’eclairage et/ou de signalisation muni d’un tel module
EP3578874A1 (fr) * 2018-06-04 2019-12-11 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile
FR3084440B1 (fr) * 2018-07-30 2021-01-15 Valeo Vision Module lumineux de vehicule automobile apte a generer un faisceau lumineux avec au moins une rangee d'unites d'illumination
FR3087875B1 (fr) 2018-10-25 2021-07-30 Valeo Vision Module lumineux pour dispositif d'eclairage de vehicule
JP7370713B2 (ja) * 2019-03-07 2023-10-30 株式会社小糸製作所 光学ユニット

Also Published As

Publication number Publication date
US20240011613A1 (en) 2024-01-11
CN117366508A (zh) 2024-01-09
JP2024008855A (ja) 2024-01-19
EP4303482A1 (fr) 2024-01-10
JP7577163B2 (ja) 2024-11-01
KR20240007063A (ko) 2024-01-16
US11940113B2 (en) 2024-03-26

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