EP3875847A1 - Signalleuchtvorrichtung für einen kraftfahrzeugscheinwerfer - Google Patents

Signalleuchtvorrichtung für einen kraftfahrzeugscheinwerfer Download PDF

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Publication number
EP3875847A1
EP3875847A1 EP20160428.7A EP20160428A EP3875847A1 EP 3875847 A1 EP3875847 A1 EP 3875847A1 EP 20160428 A EP20160428 A EP 20160428A EP 3875847 A1 EP3875847 A1 EP 3875847A1
Authority
EP
European Patent Office
Prior art keywords
light
guide body
decoupling
light guide
coupling
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Withdrawn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
EP20160428.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Lukas Leonhartsberger
Christian Maier
Alexander Strohmüller
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 EP20160428.7A priority Critical patent/EP3875847A1/de
Priority to DE202021100910.1U priority patent/DE202021100910U1/de
Priority to CN202120447430.3U priority patent/CN215446324U/zh
Publication of EP3875847A1 publication Critical patent/EP3875847A1/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Withdrawn legal-status Critical Current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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex 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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255

Definitions

  • the invention further relates to a motor vehicle headlight with at least one signal light device according to the invention.
  • Signal light devices for motor vehicles are, for example, side marker lights, the size and design mostly being specified by the motor vehicle manufacturers is, with some design requests stipulating a relatively large area to be illuminated for the signal light device with at the same time little installation space.
  • the deflecting device comprises at least one decoupling surface which is adjacent to the at least one reflective surface and which decoupling surface is set up to break light rays which are incident on the deflecting device in the main emission direction in at least one second decoupling direction and to decouple them from the light guide body, wherein the light guide body and the diffusion disk are arranged to one another in such a way that light rays refracted by the coupling-out surface are incident on a second part of the optical active surface of the diffusion disk, so that a uniform incidence of light beams coupled out of the optical active surface resulting from the first and second part from the light guide body is made possible.
  • the light guide body This enables the light guide body to be of a smaller size, since it can illuminate a larger area of the optical effective surface of the diffusing screen uniformly or homogeneously. This results in an overall smaller construction of the signal light device.
  • the light beams incident on the at least one reflection surface in the main emission direction are deflected into the deflection direction due to total reflection.
  • a general propagation of the light rays within the light guide body also takes place through total reflection.
  • the deflecting device comprises a plurality of reflection surfaces and a plurality of decoupling surfaces, with one decoupling surface and one reflecting surface each protruding from the light guide body as a prism-like body.
  • the deflection device has a prism structure, preferably a homogeneous prism structure.
  • first coupling-out direction is not the same as the at least one second coupling-out direction.
  • the decoupling elements of the decoupling section are designed as prisms protruding from the light guide body.
  • the diffusing screen comprises a plurality of micro-optics and / or upholstery optics which are set up to scatter incident light beams.
  • the at least one light source is designed as an LED.
  • the optical active surface in its entirety essentially follows a virtual basic shape, and the coupling-out section at least partially follows the virtual basic shape of the optical active surface, the virtual basic shape preferably being a curved surface.
  • the deflecting device follows a virtual basic shape, preferably a flat surface which does not follow or deviates from the virtual basic shape of the optical effective surface of the diffusing screen.
  • the virtual basic shape of the deflecting device starting from the coupling section of the light guide body, approximates the optical active surface of the diffusion disk in its extension, so that a distance between the virtual basic shape of the optical active surface and the virtual basic shape of the deflecting device becomes smaller.
  • the light guide body is formed in one piece.
  • the light guide body is made from Tarflon.
  • the at least one reflection surface of the deflection device is coated with a metallic surface.
  • the deflection direction is orthogonal to the main emission direction.
  • the coupling-out section protrudes as a leg from the coupling-in section.
  • the object is also achieved by a motor vehicle headlight with at least one signal light device according to the invention.
  • Fig. 1 shows an exemplary signal light device 10 for a motor vehicle headlight, comprising a light source 50, which is designed as an LED, and a one-piece light guide body 100 assigned to light source 50 (ie light guide body made from a material in one piece, the material being tarflon, for example).
  • a light source 50 which is designed as an LED
  • a one-piece light guide body 100 assigned to light source 50 ie light guide body made from a material in one piece, the material being tarflon, for example.
  • the light guide body 100 comprises a coupling-in section 110 for coupling the light beams emitted by the light source 50 into the light-guiding body 100 and a coupling-out section 150 for coupling the light beams out of the light-guide body 100, the coupling-in section 110 being designed as a collimator, which is set up which align light beams emitted by the light source 50 parallel to a main emission direction X.
  • the light guide body 100 further comprises a deflection device 200 with a plurality of reflective surfaces 210, which can be coated with a metallic surface and which are set up to deflect light beams which are incident on the deflection device 200 in the main emission direction X , in a deflection direction Y , which is shown in the schematic drawing in FIG Fig. 2 can be seen more clearly.
  • the decoupling section 150 comprises a plurality of decoupling elements 151 which, in the example shown, protrude from the decoupling section as protruding prisms or prism-like bodies, the decoupling elements 151 being set up to light rays which are incident in the deflection direction Y on the decoupling elements 151 in a first decoupling direction Z1, which deviates from the deflection direction Y , to be decoupled from the light guide body 100 . It should be noted that in the schematic drawing from Fig. 2 not all existing decoupling elements 151 are shown and even more than the decoupling elements shown, in particular their position on the decoupling section 150, may be present.
  • the signal light device 10 comprises a diffusing screen 300, which, as seen in the main emission direction X, is connected downstream of the light guide body 100 , the diffusing screen having an optical active surface 310 which is set up to refract incident light beams, with light beams coupled out of the coupling-out section 150 onto a first part 320 of the optical active surface 310 of the diffusion disk 300 .
  • the diffusing screen can comprise a plurality of micro-optics or cushion optics 360 on the optical active surface 310 , as in FIG Fig. 2 you can see.
  • the deflecting device 200 further comprises several decoupling surfaces 220 which are adjacent to the reflective surfaces 210 , with one decoupling surface 220 and one reflecting surface 210 each protruding from the light guide body 100 as a prism-like body and being arranged regularly in the form of a regular prism structure on the light guide body 100 .
  • the decoupling surfaces 220 are set up to refract light beams which are incident on the deflecting device 200 in the main emission direction X in at least one second decoupling direction Z2 and to decouple them from the light guide body 100 , the light guide body 100 and the diffusion disk 300 being arranged to one another in such a way that the at least a decoupling surface 220 refracted light rays are incident on a second part 330 of the optical active surface 310 of the diffusion disk 300 , so that a uniform incidence of light beams decoupled from the light guide body 100 on the entire optical active surface 310 resulting from the first and second part 320, 330 is made possible.
  • the optical active surface 310 of the diffusion disk 300 in its entirety essentially follows a virtual basic shape (in the example shown a flat surface, other shapes also being possible, for example a curved surface), and the decoupling section 150 partially follows the virtual basic shape of the effective optical surface 310.
  • the deflection device 200 also follows a virtual basic shape (in the example shown, a flat surface, other shapes also being possible, for example a curved surface), which does not follow the virtual basic shape of the optical effective surface 310 of the diffusion disk 300 or deviates from it.
  • the virtual basic shape of the deflecting device 200 starting from the coupling section 110 of the light guide body 100, approaches the optical active surface 310 of the diffusion disk 300 in its extension, so that a distance between the virtual basic shape of the optical active surface 310 and the virtual basic shape of the deflecting device 300 becomes smaller.
  • both the virtual base area of the optical effective area 310 of the diffusion disk 300 and the virtual base shape of the deflecting device 200 is a flat surface
  • the two base shapes or planes enclose an angle to one another.
  • REFERENCE CHARACTERISTICS LIST ⁇ /b> Signal light device ... 10 Light source ... 50 Light guide body ... 100 Coupling section ... 110 Decoupling section ... 150 Decoupling elements ... 151 Deflection device ... 200 Reflective surface ... 210 Outcoupling area ... 220 Diffuser ... 300
  • Effective area ... 330 Micro-optics or upholstery optics ... 360 Main direction of radiation ... X Direction of deflection ... Y First decoupling direction ... Z1 Second decoupling direction ... Z2

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  • 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)
EP20160428.7A 2020-03-02 2020-03-02 Signalleuchtvorrichtung für einen kraftfahrzeugscheinwerfer Withdrawn EP3875847A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20160428.7A EP3875847A1 (de) 2020-03-02 2020-03-02 Signalleuchtvorrichtung für einen kraftfahrzeugscheinwerfer
DE202021100910.1U DE202021100910U1 (de) 2020-03-02 2021-02-24 Signalleuchtvorrichtung für einen Kraftfahrzeugscheinwerfer
CN202120447430.3U CN215446324U (zh) 2020-03-02 2021-03-02 用于机动车大灯的信号灯装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20160428.7A EP3875847A1 (de) 2020-03-02 2020-03-02 Signalleuchtvorrichtung für einen kraftfahrzeugscheinwerfer

Publications (1)

Publication Number Publication Date
EP3875847A1 true EP3875847A1 (de) 2021-09-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20160428.7A Withdrawn EP3875847A1 (de) 2020-03-02 2020-03-02 Signalleuchtvorrichtung für einen kraftfahrzeugscheinwerfer

Country Status (3)

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EP (1) EP3875847A1 (zh)
CN (1) CN215446324U (zh)
DE (1) DE202021100910U1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4015897A1 (de) * 2020-12-18 2022-06-22 ZKW Group GmbH Signalleuchtvorrichtung oder beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer
FR3126745A1 (fr) * 2021-09-08 2023-03-10 Psa Automobiles Sa Dispositif d’éclairage à guide de lumière à face arrière réfléchissant des photons vers l’intégralité d’une face avant de sortie
CN217235478U (zh) * 2021-10-29 2022-08-19 法雷奥照明湖北技术中心有限公司 厚壁光导、照明装置和机动车辆
CN217382775U (zh) * 2021-12-30 2022-09-06 市光法雷奥（佛山）汽车照明系统有限公司 准直器、照明装置和机动车辆

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542292A1 (de) * 1985-01-28 1986-07-31 Comind Spa Leuchte fuer ein kraftfahrzeug
EP1684002A2 (de) * 2005-01-24 2006-07-26 Schefenacker Vision Systems Germany GmbH Leuchteinheit mit Lichtteiler
DE102007013082A1 (de) * 2007-03-14 2008-09-18 Hella Kgaa Hueck & Co. Signalleuchte
EP2980469A1 (fr) * 2014-07-30 2016-02-03 Valeo Vision Belgique Module lumineux à guide optique pour véhicule automobile
EP2990720A1 (en) * 2014-08-25 2016-03-02 Stanley Electric Co., Ltd. Vehicle lighting unit
DE102018119334A1 (de) * 2017-08-29 2019-02-28 Zkw Group Gmbh Beleuchtungsvorrichtung und/oder signalisierungsvorrichtung für ein kraftfahrzeug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3542292A1 (de) * 1985-01-28 1986-07-31 Comind Spa Leuchte fuer ein kraftfahrzeug
EP1684002A2 (de) * 2005-01-24 2006-07-26 Schefenacker Vision Systems Germany GmbH Leuchteinheit mit Lichtteiler
DE102007013082A1 (de) * 2007-03-14 2008-09-18 Hella Kgaa Hueck & Co. Signalleuchte
EP2980469A1 (fr) * 2014-07-30 2016-02-03 Valeo Vision Belgique Module lumineux à guide optique pour véhicule automobile
EP2990720A1 (en) * 2014-08-25 2016-03-02 Stanley Electric Co., Ltd. Vehicle lighting unit
DE102018119334A1 (de) * 2017-08-29 2019-02-28 Zkw Group Gmbh Beleuchtungsvorrichtung und/oder signalisierungsvorrichtung für ein kraftfahrzeug

Also Published As

Publication number Publication date
CN215446324U (zh) 2022-01-07
DE202021100910U1 (de) 2021-03-17

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