EP4303482A1 - 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
EP4303482A1
EP4303482A1 EP22183552.3A EP22183552A EP4303482A1 EP 4303482 A1 EP4303482 A1 EP 4303482A1 EP 22183552 A EP22183552 A EP 22183552A EP 4303482 A1 EP4303482 A1 EP 4303482A1
Authority
EP
European Patent Office
Prior art keywords
primary optical
light
optical device
lighting
lighting unit
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.)
Pending
Application number
EP22183552.3A
Other languages
German (de)
English (en)
Inventor
Nina Brauner
Sunjung Park
Kristijan Velebit
Dominic Gottsman
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.)
ZKW Group GmbH
Original Assignee
ZKW Group GmbH
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 ZKW Group GmbH filed Critical ZKW Group GmbH
Priority to EP22183552.3A priority Critical patent/EP4303482A1/fr
Priority to KR1020230071046A priority patent/KR20240007063A/ko
Priority to JP2023100658A priority patent/JP2024008855A/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
Pending 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

  • side by side means “side by side”.
  • side by side can also be understood to mean “on top of each other” or “under one another”.
  • the invention further relates to a motor vehicle headlight comprising such a lighting device.
  • a holding element which is designed to be transparent, in particular translucent and/or light-conducting. This configuration makes it possible, for example, to produce the primary optical devices and the holding element together in an injection molding process.
  • false light i.e. light from a light source that is undesirably coupled into the holder via its primary optical device, can propagate in the holder due to total internal reflection and emerge again at undesirable places.
  • light from the light source of a first lighting unit can emerge in the area of a second lighting unit and enter the outside space via the secondary optics device of the second lighting unit, which can lead to a negative influence on the light distribution generated by the second lighting unit.
  • a cross-coupling protection device is arranged in the body, between two adjacent receiving passage openings, the cross-coupling protection device being formed from a through opening in the body, the through opening of the cross-coupling protection device being formed by two side surfaces is limited, which side surfaces face the receiving through-openings in which the primary optical devices are arranged, and at least one of the side surfaces, namely that side surface or those side surfaces, their opposite boundary surface of a receiving through-opening is contacted by the primary optical device arranged in the receiving through-opening, light deflection means which are designed to detect at least a part, preferably all, of the light rays which come from the primary optical device, which faces the side surface and contacts the opposite boundary surface , entering the body and striking the side surface, to be deflected in such a way that this part of the light rays does not enter the adjacent lighting unit or does not strike the secondary optical device of the adjacent lighting unit.
  • a primary optical device contacts the boundary surface(s) directly, in particular flatly, or, as described further below, a contact element is provided with which the connection is realized.
  • the holding element and the primary optical devices are formed in one piece and preferably consist of the same material.
  • a primary optical device contacts the holding element precisely, in particular on an opposite, boundary surface.
  • the light deflection means are set up 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, and/or the light deflection means are set up to deflect incident light beams to deflect against a light emission direction of the respective lighting unit).
  • the directional information refers to an assumed arrangement of the lighting device in a horizontal position, as described at the beginning. With a rotated arrangement in relation to this assumed arrangement, the directions naturally change accordingly, for example with a 90° rotated arrangement the up/down components become left/right components.
  • Light rays are therefore deflected more upwards or downwards and either propagate in the holding element or emerge from it so far above or below and directed upwards/downward 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 beams 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, for example the main light emission directions are essentially aligned 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 optical 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, the grooves preferably extending in a 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 which thus extend along a straight longitudinal direction, and preferably adjacent grooves are parallel to one another.
  • the grooves can be formed in a cross section, in particular in a cross section normal to their longitudinal direction, for example triangular, in the form of a partial or semicircle, prismatic, rounded, etc.
  • At least one of the primary optical devices preferably each primary optical device, comprises one or more projection optical elements, preferably in the presence of two or more projection optical elements, these are arranged in at least one line.
  • Each of these projection optical elements can be designed as a separate projection lens.
  • Each projection optical element can generate its own part of the light distribution of the lighting unit, e.g. a light segment.
  • the projection elements can directly adjoin one another and are preferably firmly connected to one another, in particular formed in one piece, particularly preferably made of the same material.
  • the lines 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 using 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 contacted.
  • the contact element is preferably formed from the same material as the holding element and the primary optical device; Preferably, the holding element, contact element and primary optical device are formed in one piece 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 directed away from the secondary optical devices and/or can be designed in such a way, in particular geometrically, that light is coupled out from the Contact element/the contact elements is prevented.
  • At least the light source of a lighting unit is designed as an LED or is of the light-emitting diode type, and whereby, 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, the assigned light sources/LED preferably being 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 a 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 light propagation direction - in front of a focal point of their primary optical element and are imaged enlarged, 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 essentially generated in the - in particular virtual - enlarged image of the light source, in particular LED, formed by the primary optical element.
  • the secondary optical devices are projection optics.
  • the at least one projection optics device or projection optics elements of the at least one projection optics device are designed to be biconvex.
  • the secondary optical devices are designed as a secondary optical 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 multiple 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 on the holding element (100) so that no light from the lighting unit can enter neighboring lighting units via a distance between the diaphragm 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 bisector of the main light emission directions of the two adjacent lighting units.
  • the one or more panels are in particular flat and run essentially vertically.
  • the primary optical devices 12 each comprise exactly one primary optical element 12a, the primary optical devices 22 each comprising a plurality of primary optical elements 22a, which are arranged next to one another in a horizontal row.
  • the four primary optical devices 12, 22 are also arranged in a line.
  • the lines 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 its own 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 directly adjoin one another and are preferably firmly connected to one another, in particular formed in one piece, particularly preferably made of the same material.
  • the light sources of a 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 light propagation direction - in front of a focal point of their primary optical element and are imaged enlarged, the image of the light source being in particular a virtual image.
  • the secondary optical devices are preferably arranged in such a way that their focal point is essentially generated in the - in particular virtual - enlarged image of the light source, in particular LED, formed by the primary optical element.
  • the secondary optical devices are projection optics.
  • the secondary optical devices 31, 32 are designed as a secondary optical device component 30.
  • the primary optical device 11, 22 of each lighting unit 10, 20 is set up to direct the light emitted by the light sources 11, 21 assigned to it onto the secondary optical device 31, 32 in such a way that at least one light distribution comes from the secondary optical device 31, 32 of the lighting unit 10, 20 is produced.
  • the light emitted from a light source onto a primary optical element is imaged as a (partial) light distribution by the primary optical element together with the associated secondary optical device in the far field, i.e. on a road, for example. All light sources in a lighting unit together form an (overall) light distribution.
  • the lighting device 1 further has a holding element 100, which holds the primary optical 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, the body 110 having 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 optical devices 12, 22 are formed in one piece and preferably consist of the same material.
  • Each primary optical 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, one opposite boundary surfaces, in the specific example the primary optics device 22 with the boundary surfaces 102a, 102b and the primary optics device 12 with the boundary surfaces 101a, 101b.
  • the primary optical devices are each spaced apart from the upper and lower boundary surfaces.
  • the connection to the holding element preferably takes place at least one or the outer primary optics element(s).
  • a contact area between the primary optical device and the boundary surface has a certain extent/area over which light can enter the holder and, for example, enter an adjacent lighting unit as unwanted scattered light.
  • light from the projection optical device 12 of the lighting 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 lighting unit 20 as unwanted scattered light.
  • light from the projection optical device 22 of the lighting unit 20 could enter the holding element 100 or the body 110 via the boundary surface 102b of the receiving passage opening 102 and could thus enter the adjacent lighting 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, the overcoupling protection device 200 being formed from a through-opening 201 in the body 110, the through-opening 201 of the overcoupling protection device 200 being formed by two side surfaces 211, 212 is limited, 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 detect at least part, preferably all, of the light rays which come from a primary optical device 12, 22, which faces the side surface 211, 212 and which is opposite the side surface 211, 212 Boundary surface 101b, 102a contacted, enter the body 110 and hit the side surface 211, 212, to be deflected in such a way that this part of the light rays does not enter the adjacent lighting unit 10, 20 or does not hit the secondary optics device 31, 32 of the adjacent lighting unit 10, 20 hits.
  • the light deflection means 220, 230 are set up 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 therefore deflected more upwards or downwards and either propagate in the holding element or emerge from it so far above or below and directed upwards/downward that they do not hit the secondary optics or generally do not enter the adjacent lighting unit.
  • the light deflection means 220, 230 are set up 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 pass into the adjacent lighting unit 10, 20 occur or do not impinge on a region of the secondary optical device 31, 32, which is assigned to an adjacent lighting 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 optical device 12, 22 of the adjacent lighting unit 10, 20.
  • the side surfaces 211, 212 of the overcoupling protection device 200 are designed as basically flat surfaces on which the light deflection 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 designed in the form of grooves in the base area, the grooves preferably extending in a horizontal direction, in particular parallel to the main light emission direction X1, X2 of the primary optical device 12, 22 of the adjacent lighting unit 10, 20.
  • the primary optical device 22 is connected directly to the boundary surface 102b, i.e. the outermost primary optical element 22a is directly connected to the boundary surface 102b.
  • the primary optical 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 optical 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 optical 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 optical device; Preferably, the holding element, contact element and primary optical device are formed in one piece with one another.
  • a diaphragm in particular a wall-shaped diaphragm 300, is arranged between two lighting units 10, 20, which extends from the holding element 100 to the secondary optical devices 31, 32.
  • the aperture 300 or the plurality of apertures 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 on the holding element 100, so that no light from the lighting unit can enter adjacent lighting units via a distance between the apertures 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 bisector of the main light emission directions of the two adjacent lighting units.
  • the one or more panels are in particular flat and run 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)
EP22183552.3A 2022-07-07 2022-07-07 Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes Pending EP4303482A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP22183552.3A EP4303482A1 (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 JP2024008855A (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

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EP22183552.3A EP4303482A1 (fr) 2022-07-07 2022-07-07 Dispositif d'éclairage pour phare de véhicule automobile pourvu d'unités d'éclairage adjacentes

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EP4303482A1 true EP4303482A1 (fr) 2024-01-10

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US (1) US11940113B2 (fr)
EP (1) EP4303482A1 (fr)
JP (1) JP2024008855A (fr)
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CN (1) CN117366508A (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017054020A1 (fr) * 2015-09-30 2017-04-06 Zkw Group Gmbh Dispositif d'éclairage pour phare de véhicule automobile
EP3299700A1 (fr) * 2016-09-26 2018-03-28 Valeo Vision Module lumineux, notamment d'éclairage et/ou de signalisation pour véhicule automobile
EP3521691A1 (fr) * 2018-01-31 2019-08-07 Valeo Vision Module lumineux pour véhicule automobile, et dispositif d'éclairage 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
EP3611425A1 (fr) * 2018-07-30 2020-02-19 Valeo Vision Module lumineux de véhicule automobile apte à générer un faisceau lumineux avec au moins une rangée d'unités d'illumination
US20220170607A1 (en) * 2019-03-07 2022-06-02 Koito Manufacturing Co., Ltd. Optical unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017054020A1 (fr) * 2015-09-30 2017-04-06 Zkw Group Gmbh Dispositif d'éclairage pour phare de véhicule automobile
EP3299700A1 (fr) * 2016-09-26 2018-03-28 Valeo Vision Module lumineux, notamment d'éclairage et/ou de signalisation pour véhicule automobile
EP3521691A1 (fr) * 2018-01-31 2019-08-07 Valeo Vision Module lumineux pour véhicule automobile, et dispositif d'éclairage 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
EP3611425A1 (fr) * 2018-07-30 2020-02-19 Valeo Vision Module lumineux de véhicule automobile apte à générer un faisceau lumineux avec au moins une rangée d'unités d'illumination
US20220170607A1 (en) * 2019-03-07 2022-06-02 Koito Manufacturing Co., Ltd. Optical unit

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CN117366508A (zh) 2024-01-09
US20240011613A1 (en) 2024-01-11
KR20240007063A (ko) 2024-01-16
US11940113B2 (en) 2024-03-26
JP2024008855A (ja) 2024-01-19

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