EP3913280A1 - Kraftfahrzeugscheinwerfer - Google Patents

Kraftfahrzeugscheinwerfer Download PDF

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Publication number
EP3913280A1
EP3913280A1 EP20175378.7A EP20175378A EP3913280A1 EP 3913280 A1 EP3913280 A1 EP 3913280A1 EP 20175378 A EP20175378 A EP 20175378A EP 3913280 A1 EP3913280 A1 EP 3913280A1
Authority
EP
European Patent Office
Prior art keywords
light
motor vehicle
vehicle headlight
light distribution
pixel
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Withdrawn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
EP20175378.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Reza Larimian
Stefan MIEDLER
Thomas Reiter
Alexander Hacker
Christian Jackl
Bettina REISINGER
Christian BEMMER
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 EP20175378.7A priority Critical patent/EP3913280A1/de
Priority to US17/923,646 priority patent/US11761604B2/en
Priority to KR1020227038207A priority patent/KR20220164009A/ko
Priority to PCT/EP2021/060200 priority patent/WO2021233620A1/de
Priority to EP21719912.4A priority patent/EP4153903B1/de
Priority to JP2022568588A priority patent/JP7377380B2/ja
Priority to CN202180036131.3A priority patent/CN115552170A/zh
Publication of EP3913280A1 publication Critical patent/EP3913280A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • 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
    • 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 invention relates to a motor vehicle headlight system with a first and a second motor vehicle headlight, each motor vehicle headlight comprising a first and a second light module, which first light module has luminous pixels in a matrix-like arrangement in rows and columns, and is set up by emitting light from individual luminous pixels, a first Generate light distribution in front of the motor vehicle headlight system, and wherein the second light module has light pixels in a matrix-like arrangement in rows and columns, and is set up by emitting light from individual light pixels to generate a second light distribution in front of the motor vehicle headlight system, each light distribution being formed from several pixel light segments , whereby a pixel light segment corresponds to a luminous pixel and can be generated by this.
  • light-emitting diodes are usually used to generate one or more light distributions, which light-emitting diodes or LEDs are arranged in a matrix-like manner in rows and columns, the light-emitting diodes or LEDs also being referred to as pixels or light-emitting pixels.
  • the pixels contained in the light distribution - also called pixel light segment - the number of light-emitting diodes or LEDs is increased and / or the size of the LEDs is further reduced in order to achieve an increased resolution in the same installation space obtain.
  • the intensity of the individual LEDs when generating a light distribution must be high in order to achieve the required, legal intensity.
  • this leads to high temperatures within the light module or the LED array, which in turn has to be particularly cooled.
  • a legal light distribution width or the field of view (also called “field of view”) must be complied with when generating a light distribution, such as low beam distribution and / or high beam distribution. In implementation with a single light module, this is disadvantageous due to the increased electronic complexity and heat generation.
  • first and the second light module of the first motor vehicle headlight are set up and arranged relative to one another so that the first and the second light distribution of the first motor vehicle headlight additionally overlap at least in sections by a horizontal offset of at least a quarter of the first gap width.
  • the horizontal offset is a multiple of a quarter of the first gap width.
  • the first pixel light segment group has a first line height
  • the second pixel light segment group has a second line height
  • Pixel light segment group has a third row height, the row heights being different from one another.
  • first line height is greater than the second and third line height
  • third line height is greater than the second line height
  • the light pixels of the first and second light modules are formed from LEDs.
  • the number of light pixels in a light module is a maximum of 400.
  • the light pixels of the first and second light modules are designed as MiniLEDs.
  • MicroLEDs are an order of magnitude smaller than MiniLEDs, whereby MiniLEDs are essentially in the range of 100 ⁇ m.
  • MicroLEDs are usually more difficult to manufacture and are therefore also more cost-intensive. MiniLEDs, on the other hand, are much easier to manufacture.
  • the motor vehicle headlight system comprises a control device which is set up to control the light pixels of the first and second light modules, the light pixels being controllable independently of one another.
  • control device is set up to control the light pixels of the first and second light modules in such a way that a low beam distribution and / or a high beam distribution can be generated in the motor vehicle headlight system light distribution.
  • Fig. 1 shows an exemplary first and second light distribution 100, 200 of a motor vehicle headlight system with a first and a second motor vehicle headlight, each motor vehicle headlight comprising a first and a second light module, which first light module has light pixels in a matrix-like arrangement in rows and columns and is set up by radiation of light from individual light pixels to generate the first light distribution 100 in front of the motor vehicle headlight system, and wherein the second light module has light pixels in a matrix-like arrangement in rows and columns, and is set up to generate the second light distribution 200 in front of the motor vehicle headlight system by emitting light from individual light pixels .
  • the light pixels of the light modules are designed as MiniLEDs and do not exceed 400 in a light module.
  • Each light distribution 100, 200 is formed from a plurality of pixel light segments 101, 201 , one pixel light segment 101, 201 corresponding to a light pixel and being able to be generated by this.
  • each light distribution 100, 200 is set up to generate a first pixel light segment group 110, 210 , which is arranged in a matrix-like manner in rows and columns with a first column width 110a, 210a , and to generate a second pixel light segment group 120, 220 , which is arranged in a matrix-like manner in rows and columns Columns with a second column width 120a, 220a is arranged, wherein the second column width 120a, 220a corresponds to half of the first column width 110a, 210a , and to generate a third pixel light segment group 130, 230 , which is arranged in a matrix-like manner in rows and columns with a third column width 130a, 230a is arranged, which corresponds to the first column width 110a, 210a.
  • first pixel light segment group 110, 210 has a first line height 110b, 210b
  • second pixel light segment group 120, 220 has a second line height 120b, 220b
  • third pixel light segment group 130, 230 has a third line height 130b, 230b
  • the first line height in the example shown 110b, 210b is greater than the second and third row heights 120b, 220b, 130b, 230b
  • the third row height 130b, 230b is greater than the second row height 120b, 220b.
  • the pixel light segment groups 110, 120, 130 in the first light distribution 100 of the first light module are arranged one above the other in the vertical direction, the first pixel light segment group 110 in the vertical direction above the second pixel light segment group 120 and the third in the vertical direction below the second pixel light segment group 120 Pixel light segment group 130 is arranged.
  • the second light distribution 200 of the second light module is arranged vertically mirrored to the first light distribution 100, so that the third pixel light segment group 230 is arranged in the vertical direction above the second pixel light segment group 220 and the first pixel light segment group 210 in the vertical direction is arranged below the second pixel light segment group 220 .
  • the first and the second light module of the first motor vehicle headlight are also set up and arranged with respect to one another so that the first and the second light distribution 100, 200 of the first motor vehicle headlight overlap each other at least in sections by a vertical offset 301 of one half of the second row height 120b, 220b a first headlight light distribution 310 are arranged, which first headlight light distribution 310 in Fig. 2 you can see.
  • first and the second light module of the first motor vehicle headlight are set up and arranged with respect to one another that the first and the second light distribution 100, 200 of the first motor vehicle headlight additionally overlap at least in sections by a horizontal offset of at least a quarter of the first gap width 110a, 210a, so that the partially overlapping second pixel light segment groups 120, 220 of the first and second light distributions 100, 200 are arranged horizontally offset from one another by a quarter of the first gap width 110a, 210a.
  • first and the second light module of the second motor vehicle headlight are set up and arranged with respect to one another, so that the first and the second light distribution 100, 200 of the second motor vehicle headlight are arranged so as to overlap at least in sections to form a second headlight light distribution 320 , the second headlight light distribution 320 is horizontally mirrored to the first headlight light distribution 310 , which second headlight light distribution 320 in Fig. 3 you can see.
  • first and second motor vehicle headlights are set up and arranged with respect to one another so that the first headlight light distribution 310 of the first motor vehicle headlight and the second headlight light distribution 320 of the second motor vehicle headlight overlap each other by a horizontal offset 401 of around half the first gap width 110a, 210a are arranged to form a motor vehicle headlight system light distribution 400 , which motor vehicle headlight system light distribution 400 in Fig. 4 you can see.
  • the motor vehicle headlight system comprises a control device (not shown) which is set up to control the light pixels of the first and second light modules in such a way that a low beam and / or high beam distribution can be generated in the motor vehicle headlight system light distribution 400, the light pixels being controllable independently of one another.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
EP20175378.7A 2020-05-19 2020-05-19 Kraftfahrzeugscheinwerfer Withdrawn EP3913280A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP20175378.7A EP3913280A1 (de) 2020-05-19 2020-05-19 Kraftfahrzeugscheinwerfer
US17/923,646 US11761604B2 (en) 2020-05-19 2021-04-20 Motor vehicle headlight system
KR1020227038207A KR20220164009A (ko) 2020-05-19 2021-04-20 자동차 헤드램프 시스템
PCT/EP2021/060200 WO2021233620A1 (de) 2020-05-19 2021-04-20 Kraftfahrzeugscheinwerfersystem
EP21719912.4A EP4153903B1 (de) 2020-05-19 2021-04-20 Kraftfahrzeugscheinwerfersystem
JP2022568588A JP7377380B2 (ja) 2020-05-19 2021-04-20 自動車投光器システム
CN202180036131.3A CN115552170A (zh) 2020-05-19 2021-04-20 机动车前照灯***

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20175378.7A EP3913280A1 (de) 2020-05-19 2020-05-19 Kraftfahrzeugscheinwerfer

Publications (1)

Publication Number Publication Date
EP3913280A1 true EP3913280A1 (de) 2021-11-24

Family

ID=70779466

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20175378.7A Withdrawn EP3913280A1 (de) 2020-05-19 2020-05-19 Kraftfahrzeugscheinwerfer
EP21719912.4A Active EP4153903B1 (de) 2020-05-19 2021-04-20 Kraftfahrzeugscheinwerfersystem

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP21719912.4A Active EP4153903B1 (de) 2020-05-19 2021-04-20 Kraftfahrzeugscheinwerfersystem

Country Status (6)

Country Link
US (1) US11761604B2 (zh)
EP (2) EP3913280A1 (zh)
JP (1) JP7377380B2 (zh)
KR (1) KR20220164009A (zh)
CN (1) CN115552170A (zh)
WO (1) WO2021233620A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024094530A1 (fr) * 2022-11-06 2024-05-10 Valeo Vision Dispositif d'éclairage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2682671A2 (de) * 2012-07-04 2014-01-08 Automotive Lighting Reutlingen GmbH Lichtmodul
EP3382266A1 (fr) * 2017-03-31 2018-10-03 Valeo Vision Dispositif de projection de faisceau lumineux à actionneur mécanique, module optique et projecteur muni d'un tel dispositif
DE102017206274A1 (de) * 2017-04-12 2018-10-18 Volkswagen Aktiengesellschaft Verfahren zur Erzeugung einer Gesamtlichtverteilung eines Kraftfahrzeugs sowie Fernlichtmodul, Scheinwerfer und Kraftfahrzeug zur Durchführung des Verfahrens
EP3428513A1 (fr) * 2017-07-13 2019-01-16 Valeo Vision Dispositif d'éclairage projetant deux matrices de pixels lumineux décalées verticalement
DE102017216911A1 (de) * 2017-09-25 2019-03-28 Osram Gmbh Leuchtvorrichtung, insbesondere für einen Scheinwefer eines Kraftfahrzeugs, sowie Kraftfahrzeugscheinwerfer
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

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT508604B1 (de) 2009-07-31 2012-07-15 Zizala Lichtsysteme Gmbh Led-kraftfahrzeugscheinwerfer zur erzeugung einer dynamischen lichtverteilung
AT514834B1 (de) 2013-02-07 2017-11-15 Zkw Group Gmbh Scheinwerfer für ein Kraftfahrzeug und Verfahren zum Erzeugen einer Lichtverteilung
JP6174337B2 (ja) 2013-02-27 2017-08-02 株式会社小糸製作所 車両用灯具
JP2015015104A (ja) 2013-07-03 2015-01-22 スタンレー電気株式会社 光源装置、車両用前照灯、車両用前照灯システム
JP2015116915A (ja) 2013-12-18 2015-06-25 スタンレー電気株式会社 車両用前照灯の点灯制御装置、車両用前照灯システム
KR102614146B1 (ko) * 2018-09-27 2023-12-14 현대자동차주식회사 차량용 조명장치
EP3671012A1 (de) * 2018-12-18 2020-06-24 ZKW Group GmbH Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer sowie kraftfahrzeugscheinwerfer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2682671A2 (de) * 2012-07-04 2014-01-08 Automotive Lighting Reutlingen GmbH Lichtmodul
EP3382266A1 (fr) * 2017-03-31 2018-10-03 Valeo Vision Dispositif de projection de faisceau lumineux à actionneur mécanique, module optique et projecteur muni d'un tel dispositif
DE102017206274A1 (de) * 2017-04-12 2018-10-18 Volkswagen Aktiengesellschaft Verfahren zur Erzeugung einer Gesamtlichtverteilung eines Kraftfahrzeugs sowie Fernlichtmodul, Scheinwerfer und Kraftfahrzeug zur Durchführung des Verfahrens
EP3428513A1 (fr) * 2017-07-13 2019-01-16 Valeo Vision Dispositif d'éclairage projetant deux matrices de pixels lumineux décalées verticalement
DE102017216911A1 (de) * 2017-09-25 2019-03-28 Osram Gmbh Leuchtvorrichtung, insbesondere für einen Scheinwefer eines Kraftfahrzeugs, sowie Kraftfahrzeugscheinwerfer
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024094530A1 (fr) * 2022-11-06 2024-05-10 Valeo Vision Dispositif d'éclairage
FR3141750A1 (fr) * 2022-11-06 2024-05-10 Valeo Vision Dispositif d’éclairage

Also Published As

Publication number Publication date
US20230204181A1 (en) 2023-06-29
EP4153903A1 (de) 2023-03-29
WO2021233620A1 (de) 2021-11-25
US11761604B2 (en) 2023-09-19
KR20220164009A (ko) 2022-12-12
CN115552170A (zh) 2022-12-30
JP2023524880A (ja) 2023-06-13
EP4153903B1 (de) 2023-12-13
JP7377380B2 (ja) 2023-11-09

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