EP3839327A1 - Module de projection pour un phare de véhicule automobile - Google Patents

Module de projection pour un phare de véhicule automobile Download PDF

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Publication number
EP3839327A1
EP3839327A1 EP19218697.1A EP19218697A EP3839327A1 EP 3839327 A1 EP3839327 A1 EP 3839327A1 EP 19218697 A EP19218697 A EP 19218697A EP 3839327 A1 EP3839327 A1 EP 3839327A1
Authority
EP
European Patent Office
Prior art keywords
diaphragm
projection module
screen
edge
optically relevant
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Withdrawn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
EP19218697.1A
Other languages
German (de)
English (en)
Inventor
Bernhard Mandl
Tobias Karas
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 EP19218697.1A priority Critical patent/EP3839327A1/fr
Priority to CN202080087614.1A priority patent/CN114761729B/zh
Priority to US17/781,472 priority patent/US11629834B2/en
Priority to EP20803866.1A priority patent/EP4078022B1/fr
Priority to KR1020227014053A priority patent/KR20220065876A/ko
Priority to PCT/EP2020/082182 priority patent/WO2021121817A1/fr
Priority to JP2022533600A priority patent/JP7366269B2/ja
Publication of EP3839327A1 publication Critical patent/EP3839327A1/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Withdrawn legal-status Critical Current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
    • F21S41/40—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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled 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
    • F21S41/20—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
    • F21S41/26—Elongated 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
    • F21W2102/15—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 under L-shaped cut-off lines, i.e. vertical and horizontal cutoff lines

Definitions

  • it can be a projection module for realizing a high beam or a high beam distribution.
  • This is intended to depict a split high beam cloud for left and right headlights, which can be swiveled apart when faded out.
  • vertical brackets or an additional screen, which is arranged vertically, are arranged on the radiation diaphragm, which is arranged horizontally in the module.
  • a light function is understood to mean the generation of a legally prescribed light distribution by the projection module or a motor vehicle headlight. Examples of such light distributions are the low beam distribution and the high beam distribution.
  • an automatic high beam switch with a partial high beam function takes place through control, which is provided that part of the high beam distribution remains activated despite driving ahead and / or oncoming traffic.
  • the projection module or the motor vehicle headlight or a motor vehicle headlight system generates a non-illuminated sub-area in the high beam distribution where other road users are located so that the other road users are not dazzled, for example - if there is a left and a right headlight, which respectively Generate a part of a common high beam distribution - these parts swiveled apart, whereby a non-illuminated area is created between these parts in which the oncoming or preceding traffic is positioned.
  • the non-illuminated area can no longer be enlarged by pivoting the parts of the high beam distribution apart, since the pivoting angle is too large.
  • one of the headlights for example the left headlight, must be switched off so that the non-illuminated area can be enlarged.
  • partial high beam distribution Such a partially shaded high beam distribution is referred to below as partial high beam distribution, which is usually generated by a single motor vehicle headlight or the projection module in this motor vehicle headlight.
  • projection modules are realized or implemented in different designs in motor vehicle headlights.
  • the projection module comprises an additional screen which is set up to be arranged vertically below the beam screen when the projection module is used as intended in a motor vehicle headlight and has a vertically extending first optically relevant screen edge which is spaced from the optical axis is arranged, wherein the first optically relevant diaphragm edge is set up to partially shade light from the second light source so that a partial high beam distribution can be generated, and wherein the additional diaphragm has a contact section on which the additional diaphragm rests against the radiation diaphragm, the first optically relevant diaphragm edge having an end in the vertical direction in the direction of the radiation diaphragm which is at a distance from the radiation diaphragm, and wherein the additional diaphragm has a second optically relevant diaphragm edge, which extends from the end of the first optically relevant diaphragm edge to the contact section, the second optically relevant diaphragm edge defining a gap in a projection onto the
  • the terms refer to a location or an orientation, such as “horizontal”, “vertical”, “in the horizontal direction”, “in the vertical direction”, “top”, “bottom”, “front”, “rear” “,” below “,” above “etc. to a correct installation position of the projection module in question in a motor vehicle headlight.
  • the additional panel is provided with a gap or slot. In conjunction with an increase or decrease, this gap enables global approval of the partial high beam or the partial high beam distribution.
  • the arrangement can be mirrored around the sagittal plane.
  • the first optically relevant diaphragm edge of the additional diaphragm is set up to horizontally shade the high beam distribution that can be generated at -5 ° to -1 °, preferably at -3.5 °, on a measuring screen.
  • the gap is set up to generate a segment in the partial high beam distribution, which segment extends horizontally from ⁇ 3.5 ° to a maximum of -12 °, preferably to a maximum of -6 °, preferably to a maximum of -5 ° , and extends vertically up to 2 °, preferably up to 1 °, preferably up to 0.2 °, on a measuring screen.
  • the measuring screen is arranged 25m away from the projection module.
  • the radiation diaphragm and the additional diaphragm form an inherently rigid composite diaphragm.
  • Rigid is understood to mean that the radiation diaphragm and the additional diaphragm are connected to one another in such a way that relative movements should be prevented or not possible as far as possible.
  • the focal surface of the projection lens is curved, the course of the optically relevant diaphragm edge of the beam diaphragm essentially following the curved focal surface.
  • the additional diaphragm is arranged orthogonally to the optical axis of the projection lens.
  • the first optically relevant diaphragm edge of the additional diaphragm is spaced apart in the direction of the optical axis of the projection lens, the spacing being 1 mm, preferably 8/10 mm.
  • the “distance” also includes a distance at which the first optically relevant diaphragm edge of the additional diaphragm is spaced apart in the direction of the optical axis to or against the arrangement direction of the projection lens.
  • Such a distance is intended to improve the light-dark boundary of the partial high-beam light distribution or of the segment that can be generated in the partial high-beam light distribution to the effect that color fringes are to be reduced.
  • the rule here is that the greater the distance mentioned above, the more bluish the color fringing of the light-dark border appears.
  • the additional screen has at least one hole for a signal light distribution. So only the generation of individual areas or points for the signlight distribution is provided.
  • the contact section is designed as a fastening section to which the additional screen is fastened to the radiation screen.
  • Fig. 1 shows a projection module 10 for a motor vehicle headlight, which projection module 10 comprises a first light source 110 and a second light source 120 as well as a beam diaphragm 200 , which is set up to be arranged horizontally in a built-in motor vehicle headlight when the projection module 10 is used as intended, and an optically relevant one Has diaphragm edge 210 for generating an asymmetrical light-dark boundary.
  • the first light source 110 is arranged on an upper side of said beam stop 200 and acts in combination with the optically relevant diaphragm edge 210 of the beam stop 200 for generating a low beam distribution with, said second light source is disposed on an underside of the beam diaphragm 200 120 and for generating a beam light distribution contributes.
  • the projection module 10 further comprises a projection lens 300 with an optical axis A and a focal surface F for projecting a light distribution in a main emission direction X in front of the projection module 10, the diaphragm edge 210 of the beam diaphragm 200 essentially in the area for generating a sharp cut-off line Focal surface F of the projection lens 300 is arranged, and wherein the optical axis A coincides with the main emission direction X.
  • the projection module 10 comprises an additional panel 200 (in Fig. 1 not shown), which in Fig. 2 can be seen in more detail and is set up to be arranged vertically below the beam diaphragm 200 when the projection module 10 is used as intended in a motor vehicle headlight and has a vertically extending first optically relevant diaphragm edge 410 which is arranged at a distance from the optical axis A.
  • Fig. 2 shows the radiation diaphragm 200 with the additional diaphragm 400 in a view obliquely from behind and from below.
  • the first optically relevant diaphragm edge 410 is set up to partially shade light from the second light source 120 so that a partial high beam distribution can be generated, wherein the additional screen 400 has a fastening section 430 , to which the additional screen 400 is fastened to the radiation screen 200 , the radiation screen 200 and the additional screen 400 forming an inherently rigid composite screen.
  • the first optically relevant diaphragm edge 410 has, in a vertical extension in the direction of the beam diaphragm 200, an end 411 , which end 411 is at a distance from the beam diaphragm 200 .
  • the additional panel 400 furthermore has a second optically relevant panel edge 420 which, starting from the end 411 of the first optically relevant panel edge 410, extends to the fastening section 430 , as in FIG Fig. 4 is shown in sketch form.
  • the second optically relevant diaphragm edge 420 defines a gap in a projection or an orthogonal projection onto the beam diaphragm 200 , which gap is set up in combination with the second light source 120 to generate a segment in the partial high beam distribution.
  • Fig. 5 shows a sketchy view of the projection module 10 from below, whereby it can be seen that the first optically relevant, vertical diaphragm edge 410 and the end 411 of the diaphragm edge 410 are spaced apart from the optical axis A of the projection lens, the distance 440 formed in this way 1 mm, preferably 8 / 10 mm, is large.
  • the additional diaphragm 400 is arranged orthogonally to the optical axis A of the projection lens 300 .
  • the focal surface F of the projection lens 300 is curved, the course of the optically relevant diaphragm edge 210 of the beam diaphragm 200 essentially following the curved focal surface F.
  • Fig. 6 shows a partial high beam distribution from the prior art or from an example in which the first optically relevant, vertical diaphragm edge 410 of the additional diaphragm 400 would extend vertically all the way to the beam diaphragm 200. It can be seen that the first optically relevant screen edge of the additional screen shadows the high beam distribution at - 3.5 ° horizontally
  • Fig. 7 shows a partial high beam distribution that can be generated by the projection module 10 according to the invention, wherein the aforementioned gap, which is defined by the additional screen, is set up to generate a segment 500 in the partial high beam distribution, which segment 500 extends horizontally from - 2 ° to a maximum of - 12 °, preferably up to a maximum of -6 °, preferably up to a maximum of -5 °, preferably precisely to a maximum of -3.5 °, and vertically up to 2 °, preferably up to 1 °, preferably up to 0.2 °, on the measuring screen extends.
EP19218697.1A 2019-12-20 2019-12-20 Module de projection pour un phare de véhicule automobile Withdrawn EP3839327A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP19218697.1A EP3839327A1 (fr) 2019-12-20 2019-12-20 Module de projection pour un phare de véhicule automobile
CN202080087614.1A CN114761729B (zh) 2019-12-20 2020-11-16 一种用于机动车前照灯的投射模块
US17/781,472 US11629834B2 (en) 2019-12-20 2020-11-16 Projection module for a motor vehicle headlamp
EP20803866.1A EP4078022B1 (fr) 2019-12-20 2020-11-16 Module de projection pour un phare de véhicule automobile
KR1020227014053A KR20220065876A (ko) 2019-12-20 2020-11-16 자동차 헤드램프용 투영 모듈
PCT/EP2020/082182 WO2021121817A1 (fr) 2019-12-20 2020-11-16 Module de projection d'un phare de véhicule automobile
JP2022533600A JP7366269B2 (ja) 2019-12-20 2020-11-16 自動車投光器用の投射モジュール

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19218697.1A EP3839327A1 (fr) 2019-12-20 2019-12-20 Module de projection pour un phare de véhicule automobile

Publications (1)

Publication Number Publication Date
EP3839327A1 true EP3839327A1 (fr) 2021-06-23

Family

ID=69411162

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19218697.1A Withdrawn EP3839327A1 (fr) 2019-12-20 2019-12-20 Module de projection pour un phare de véhicule automobile
EP20803866.1A Active EP4078022B1 (fr) 2019-12-20 2020-11-16 Module de projection pour un phare de véhicule automobile

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20803866.1A Active EP4078022B1 (fr) 2019-12-20 2020-11-16 Module de projection pour un phare de véhicule automobile

Country Status (6)

Country Link
US (1) US11629834B2 (fr)
EP (2) EP3839327A1 (fr)
JP (1) JP7366269B2 (fr)
KR (1) KR20220065876A (fr)
CN (1) CN114761729B (fr)
WO (1) WO2021121817A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008631A1 (de) * 2009-02-12 2010-08-19 Automotive Lighting Reutlingen Gmbh Projektionsmodul für einen Kraftfahrzeugscheinwerfer
EP2799761A2 (fr) * 2013-04-29 2014-11-05 Automotive Lighting Reutlingen GmbH Module d'éclairage de phare de véhicule automobile
EP2982902A1 (fr) * 2014-08-08 2016-02-10 Automotive Lighting Reutlingen GmbH Module lumineux de projection pour un phare de vehicule automobile
EP3211292A1 (fr) * 2016-02-22 2017-08-30 Excellence Optoelectronics (Dong Guan) Ltd. Module de phare de véhicule

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4749968B2 (ja) 2006-07-31 2011-08-17 株式会社小糸製作所 車両用前照灯
FR2919377B1 (fr) * 2007-07-25 2013-08-23 Valeo Vision Module optique a source lumineuse transverse pour projecteur automobile
JP5717565B2 (ja) * 2011-07-11 2015-05-13 株式会社小糸製作所 車両用照明灯具
JP6036497B2 (ja) 2013-04-08 2016-11-30 トヨタ自動車株式会社 燃料電池の検査装置および検査システム
JP6550934B2 (ja) 2015-06-02 2019-07-31 市光工業株式会社 車両用前照灯
CN206072926U (zh) * 2016-08-31 2017-04-05 南宁燎旺车灯股份有限公司 一种全新led远近光一体前照灯投影灯芯

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009008631A1 (de) * 2009-02-12 2010-08-19 Automotive Lighting Reutlingen Gmbh Projektionsmodul für einen Kraftfahrzeugscheinwerfer
EP2799761A2 (fr) * 2013-04-29 2014-11-05 Automotive Lighting Reutlingen GmbH Module d'éclairage de phare de véhicule automobile
EP2982902A1 (fr) * 2014-08-08 2016-02-10 Automotive Lighting Reutlingen GmbH Module lumineux de projection pour un phare de vehicule automobile
EP3211292A1 (fr) * 2016-02-22 2017-08-30 Excellence Optoelectronics (Dong Guan) Ltd. Module de phare de véhicule

Also Published As

Publication number Publication date
WO2021121817A1 (fr) 2021-06-24
CN114761729A (zh) 2022-07-15
CN114761729B (zh) 2024-03-01
EP4078022B1 (fr) 2023-08-16
EP4078022A1 (fr) 2022-10-26
JP7366269B2 (ja) 2023-10-20
US11629834B2 (en) 2023-04-18
JP2023504556A (ja) 2023-02-03
KR20220065876A (ko) 2022-05-20
US20230052888A1 (en) 2023-02-16

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