EP4123217A1 - Dispositif d'éclairage pour un phare de véhicule automobile - Google Patents

Dispositif d'éclairage pour un phare de véhicule automobile Download PDF

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Publication number
EP4123217A1
EP4123217A1 EP21186669.4A EP21186669A EP4123217A1 EP 4123217 A1 EP4123217 A1 EP 4123217A1 EP 21186669 A EP21186669 A EP 21186669A EP 4123217 A1 EP4123217 A1 EP 4123217A1
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
vertical plane
illuminance
beam distribution
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Withdrawn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
EP21186669.4A
Other languages
German (de)
English (en)
Inventor
Ulrich Galander
Jakob Pühringer
Benedikt Krist
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 EP21186669.4A priority Critical patent/EP4123217A1/fr
Priority to PCT/EP2022/066693 priority patent/WO2023001462A1/fr
Priority to CN202280050287.1A priority patent/CN117813465A/zh
Priority to KR1020237045153A priority patent/KR20240014515A/ko
Priority to EP22733177.4A priority patent/EP4374107A1/fr
Publication of EP4123217A1 publication Critical patent/EP4123217A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S41/60—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
    • 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
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F21W2102/14—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
    • F21W2102/145—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam

Definitions

  • the invention also relates to a motor vehicle headlight with at least one lighting device according to the invention.
  • intersection point HV is arranged within an isolux line for 80% of the maximum illuminance of the high beam distribution.
  • the light-emitting diodes can be controlled independently of one another, preferably can be switched on and off independently of one another, in particular can be dimmed independently of one another.
  • the object is also achieved by a motor vehicle headlight with at least one lighting device according to the invention.
  • FIG. 1 shows an exemplary lighting device 10 for a motor vehicle headlight for generating a segmented high beam distribution FL, the high beam distribution FL having a first and a second illuminance maximum M1, M2 which are designed and arranged in the high beam distribution FL in such a way that an intersection point HV of the horizontal line HH and the vertical line VV of a measuring screen for measuring a light distribution is arranged within an isolux line for 80% of the maximum illuminance of the high beam distribution FL , which light distribution FL is in 4 is shown.
  • isolux lines indicate the distribution of the corresponding illuminance on a visible surface, with points of the same illuminance being connected to one another by curves, namely the isolux lines.
  • the lighting device 10 comprises a plurality of light sources 50 and an optic body 100, comprising a base body 110 and a plurality of light guide bodies 200 protruding from the base body 110 for forming the definable, segmented high beam distribution FL from the light from the light sources 50, which light guide bodies 200 each have a light entry surface 210 , into which light can be fed from the light sources 50 , and have an exit surface 220 , from which exit surface 220 exits light that can be fed into the respective light guide bodies 200 , the exit surface 220 of adjacent light guide bodies 200 directly adjoining one another and forming a common exit surface 220a of the optic body 100 , wherein the light-guiding bodies 200 of the optics body 100 are arranged in exactly one row along a straight line G.
  • a light source 50 is assigned to an entry surface 210 of a light guide body 200 in each case.
  • the plurality of light sources 50 are embodied here as light-emitting diodes, the light-emitting diodes being controllable independently of one another, preferably being able to be switched on and off independently of one another, in particular being dimmable independently of one another.
  • the entry surfaces 210 of the light guide bodies 200 are in a common vertical plane (seen in a properly installed state of the Lighting device 10 arranged in a motor vehicle), which vertical plane is arranged orthogonally to the main radiation direction X.
  • the illumination device 10 comprises projection optics 300 arranged downstream of the beam path of the optics body 100 , which projection optics 300 can comprise, for example, one or more projection lenses, with an optical axis A, which projection optics 300 is set up so that light emerging from the common exit surface 200a is directed in front of the illumination device 10 in the direction a main emission direction X , with the optical axis A of the projection optics 300 intersecting the point of intersection HV , and with the optical axis A being parallel to the main emission direction X of the illumination device 10 .
  • projection optics 300 can comprise, for example, one or more projection lenses, with an optical axis A, which projection optics 300 is set up so that light emerging from the common exit surface 200a is directed in front of the illumination device 10 in the direction a main emission direction X , with the optical axis A of the projection optics 300 intersecting the point of intersection HV , and with the optical axis A being parallel to the main emission direction X of the illumination device 10 .
  • a first and second virtual axis y, z are arranged orthogonally to the main emission direction X , with the first and second virtual axes y, z also being aligned orthogonally to one another, with the first axis y in a horizontal plane and the second axis y are arranged in a vertical plane.
  • each fiber-optic element 200 has two lateral side surfaces 230a, 230b as well as an upper and a lower side surface 240a, 240b, as seen in a properly installed state of the lighting device 10 in a motor vehicle, which side surfaces 230a, 230b, 240a, 240b extend away from the entry surface 210 extend in the direction of the common exit surface 220a and delimit the light guide body 200 at least in sections.
  • the optic body 100 has a first and a second light emission half L1, L2 , which seen in a properly installed state of the lighting device 10 in a motor vehicle by a virtual vertical plane VE, which is determined by the axis of the main direction of emission X and the second axis z and runs through the optics body 100 and in which vertical plane VE the optical axis A of the projection optics 300 is located, can be distinguished from one another.
  • a virtual vertical plane VE which is determined by the axis of the main direction of emission X and the second axis z and runs through the optics body 100 and in which vertical plane VE the optical axis A of the projection optics 300 is located
  • each light emission half L1, L2 has the same number of light guide bodies 200 .
  • the first light-emitting half L1 is arranged on a first side S1 of the virtual vertical plane VE
  • the second light-emitting half L2 is arranged on a second side S2 opposite the first side S1 .
  • the first fiber-optic element 200a of the first light-emitting half L1 which is directly adjacent to the virtual vertical plane VE , is involved in generating the first illuminance maximum M1 of the high-beam distribution FL
  • the first fiber-optic element 200b of the second light-emitting half L2 which is directly adjacent to the virtual vertical plane VE is involved in generating the second illuminance maximum M2 of the high beam distribution FL .
  • the entry surfaces 210 of these first fiber-optic elements 200a, 200b each have an offset, in particular a parallel offset, to the corresponding exit surface 220 , so that the surface center point FM2 of the entry surface 210 has a horizontal offset H-off , directed away from the virtual vertical plane VE , along the first axis y, which runs orthogonally to the virtual vertical plane VE , and has a downward vertical offset V-off along the second axis z to the surface center point FM1 of the associated exit surface 220 . This is particularly in 3 clearly shown.
  • lateral side surface 230b of these first light-conducting bodies 200a, 200b which is directed toward the virtual vertical plane VE , is concave.
  • the upper side surface 240a of these first fiber-optic elements 200a, 200b is curved, preferably concave.
  • the lower side surface 240b of these first fiber-optic elements 200a, 200b is curved, preferably convex.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP21186669.4A 2021-07-20 2021-07-20 Dispositif d'éclairage pour un phare de véhicule automobile Withdrawn EP4123217A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21186669.4A EP4123217A1 (fr) 2021-07-20 2021-07-20 Dispositif d'éclairage pour un phare de véhicule automobile
PCT/EP2022/066693 WO2023001462A1 (fr) 2021-07-20 2022-06-20 Dispositif d'éclairage pour phare de véhicule automobile
CN202280050287.1A CN117813465A (zh) 2021-07-20 2022-06-20 用于机动车前灯的照明装置
KR1020237045153A KR20240014515A (ko) 2021-07-20 2022-06-20 자동차 헤드라이트용 조명 장치
EP22733177.4A EP4374107A1 (fr) 2021-07-20 2022-06-20 Dispositif d'éclairage pour phare de véhicule automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21186669.4A EP4123217A1 (fr) 2021-07-20 2021-07-20 Dispositif d'éclairage pour un phare de véhicule automobile

Publications (1)

Publication Number Publication Date
EP4123217A1 true EP4123217A1 (fr) 2023-01-25

Family

ID=76999707

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21186669.4A Withdrawn EP4123217A1 (fr) 2021-07-20 2021-07-20 Dispositif d'éclairage pour un phare de véhicule automobile
EP22733177.4A Pending EP4374107A1 (fr) 2021-07-20 2022-06-20 Dispositif d'éclairage pour phare de véhicule automobile

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22733177.4A Pending EP4374107A1 (fr) 2021-07-20 2022-06-20 Dispositif d'éclairage pour phare de véhicule automobile

Country Status (4)

Country Link
EP (2) EP4123217A1 (fr)
KR (1) KR20240014515A (fr)
CN (1) CN117813465A (fr)
WO (1) WO2023001462A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090016074A1 (en) * 2007-07-09 2009-01-15 Magna International Inc. Semiconductor light engine using glass light pipes
US20160265732A1 (en) * 2015-03-13 2016-09-15 c/o Valeo Iluminacion Lighting device with optical waveguides
EP3388734A1 (fr) * 2017-04-11 2018-10-17 Automotive Lighting Reutlingen GmbH Unité optique primaire pour un module d'éclairage de phare de véhicule
DE102017212095A1 (de) * 2017-07-14 2019-01-17 Osram Gmbh Beleuchtungsvorrichtung mit geneigten schrägen lichtleitern für ein fahrzeug, scheinwerfer sowie fahrzeug
CN209688723U (zh) * 2019-03-19 2019-11-26 常州星宇车灯股份有限公司 Led光源车灯远近光一体模组和具有其的车辆
US20200103086A1 (en) * 2018-10-02 2020-04-02 Lumileds Holding B.V. Led lighting device
WO2020083711A1 (fr) * 2018-10-25 2020-04-30 Valeo Vision Module lumineux pour dispositif d'eclairage de vehicule
US20210180760A1 (en) * 2018-08-31 2021-06-17 Valeo Vision Motor vehicle light module comprising a plurality of light guides

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090016074A1 (en) * 2007-07-09 2009-01-15 Magna International Inc. Semiconductor light engine using glass light pipes
US20160265732A1 (en) * 2015-03-13 2016-09-15 c/o Valeo Iluminacion Lighting device with optical waveguides
EP3388734A1 (fr) * 2017-04-11 2018-10-17 Automotive Lighting Reutlingen GmbH Unité optique primaire pour un module d'éclairage de phare de véhicule
DE102017212095A1 (de) * 2017-07-14 2019-01-17 Osram Gmbh Beleuchtungsvorrichtung mit geneigten schrägen lichtleitern für ein fahrzeug, scheinwerfer sowie fahrzeug
US20210180760A1 (en) * 2018-08-31 2021-06-17 Valeo Vision Motor vehicle light module comprising a plurality of light guides
US20200103086A1 (en) * 2018-10-02 2020-04-02 Lumileds Holding B.V. Led lighting device
WO2020083711A1 (fr) * 2018-10-25 2020-04-30 Valeo Vision Module lumineux pour dispositif d'eclairage de vehicule
CN209688723U (zh) * 2019-03-19 2019-11-26 常州星宇车灯股份有限公司 Led光源车灯远近光一体模组和具有其的车辆

Also Published As

Publication number Publication date
EP4374107A1 (fr) 2024-05-29
WO2023001462A1 (fr) 2023-01-26
CN117813465A (zh) 2024-04-02
KR20240014515A (ko) 2024-02-01

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