EP3063463A1 - Dispositif d'éclairage pour phare de véhicule automobile - Google Patents

Dispositif d'éclairage pour phare de véhicule automobile

Info

Publication number
EP3063463A1
EP3063463A1 EP14824346.2A EP14824346A EP3063463A1 EP 3063463 A1 EP3063463 A1 EP 3063463A1 EP 14824346 A EP14824346 A EP 14824346A EP 3063463 A1 EP3063463 A1 EP 3063463A1
Authority
EP
European Patent Office
Prior art keywords
light
lighting device
optical
attachment optics
boundary
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.)
Granted
Application number
EP14824346.2A
Other languages
German (de)
English (en)
Other versions
EP3063463B1 (fr
Inventor
Udo Maier
Lukas Taudt
Oliver REITEGGER
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
Zizala Lichtsysteme 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 Zizala Lichtsysteme GmbH filed Critical Zizala Lichtsysteme GmbH
Publication of EP3063463A1 publication Critical patent/EP3063463A1/fr
Application granted granted Critical
Publication of EP3063463B1 publication Critical patent/EP3063463B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F21S41/20—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
    • F21S41/10—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
    • F21S41/29—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
    • F21S41/43—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
    • F21S41/60—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

Definitions

  • the invention relates to a lighting device for a motor vehicle headlight, wherein the lighting device comprises at least one optical body and at least one mounting device for the at least one optical body, wherein the at least one optical body has a number of adjacent optical attachments, each optical attachment is formed of a light-conducting material and each attachment optics a light incoupling surface and a light outcoupling surface, wherein the at least one mounting device has at least one receptacle for each intent optics, and where receptacles are delimited by boundary walls, the boundary walls having boundary edges on the light exit side, which boundary edges in a light distribution generated by the at least one optical body as bright Dark edges between the partial optical distributions generated by the individual optical attachments are mapped, and wherein the at least one Opti kMech in the light exit direction, a projection device, preferably a projection lens is connected downstream.
  • the invention relates to a light module for a motor vehicle headlight, with at least one such lighting device.
  • the invention also relates to a motor vehicle headlight with one or more such light modules.
  • Input called optical bodies are used in light modules for motor vehicle headlights for generating light distributions, for example for generating segmented light distributions, ie light distributions, which are composed of individual light segments.
  • the attachment optics are usually made of plastic, silicone, glass, etc.
  • the optics body are accurately fixed and stable in this desired position.
  • the individual attachment optics of the optic body are bounded at least laterally by boundary walls, wherein these boundary walls are formed from an opaque material.
  • the light output surfaces of the attachment optics and the light exit side boundary edges of the boundary walls lie in a common area, which surface may be flat, but also curved.
  • the focal point of the optical system downstream projection lens, which images the light distribution in an area in front of the vehicle, lies in this common plane, so that the boundary edges of the boundary walls are imaged as sharply as necessary in the light image and the light segments are thus correspondingly sharply defined.
  • attachment optics are arranged and / or formed such that the light output surfaces of the attachment optics in the light exit direction over the boundary edges of the boundary walls survive.
  • the boundary edges Due to the protruding arrangement of the light outcoupling surfaces with respect to the boundary edges, the boundary edges, which are still in a plane containing the focal point of the downstream projection lens, still in focus, while the light outcoupling surfaces are displayed defocused and mapped accordingly.
  • this blurred image is irrelevant, since it is here anyway on a homogeneous light distribution, while the limitation of the light segments is still shown in focus. Due to the defocusing of the light outcoupling surfaces, however, too Any dust deposits are shown defocused and are no longer recognizable and no longer disturb the homogeneity of the light distribution.
  • the boundary edges lie in a common area, wherein this area is preferably continuous, in particular at least C0-continuous.
  • the common surface of the boundary edges is flat and is preferably arranged approximately normal to the light exit direction.
  • the light outcoupling surfaces may be formed curved and / or arranged along a curved curve, for example, to follow a field curvature of the lens.
  • the light output surfaces of the attachment optics are planar.
  • the light outcoupling surfaces of the attachment optics lie in a common plane.
  • the common plane of the light output surfaces has a constant distance from the common plane of the boundary edges.
  • the light output surfaces thus have everywhere the same normal distance to the plane through the boundary edges of the boundary walls, thus extending in parallel.
  • the common surface or plane of the boundary edges lies in or includes a focal point of the projection lens. In this way, the boundary edges are sharply displayed in the photograph.
  • attachment optics are directly, i. abut without spacing on the boundary walls of their at least one receptacle in order to obtain an optimal optical representation of the light segments.
  • Perimeter walls are provided at least between the juxtaposed recordings. However, it is particularly preferred if the two outer receptacles are also delimited on their outer side by a respective boundary wall.
  • juxtaposed receptacles are each separated from a common divider which forms the boundary walls for the adjacent receptacles.
  • the support device for the optic body is provided with a support for the one or more light sources which are provided for the irradiation of light in the optics of the optics body, is connectable.
  • the position of the boundary edges is fixed to the at least one light source, and the optical body is extended in the light exit direction with respect to an optical body whose light exit surfaces lie in a common plane or surface with the boundary edges.
  • the effects of the invention can be achieved only by modifying the optical body even with existing systems carrier - mounting device.
  • the holding device comprises a base body, which is connectable to the carrier for the one or more light sources for feeding light into the optical body.
  • the receptacles for the attachment optics are then preferably formed in the base body.
  • the optic body is held in the base body by means of a holding body, which presses the optic body in the suitably designed base body and holds stable after connection of the holding body with the base body in the desired position.
  • the attachment optics are mechanically connected to one another in the region of the light outcoupling surfaces with at least one connecting web extending transversely to the attachment optics, wherein the at least one a connecting web is optically ineffective, at least in regions, and wherein the main body further has at least one abutment region on which the optic body can be brought into abutment with the at least one receptacle with a rear surface of the at least one connecting web when the attachment optics are inserted;
  • the light-outcoupling surfaces of neighboring auxiliary optics have a distance a> 0 from one another.
  • each optical component comprises at least one light guide.
  • the optical element consists of exactly two optical components, wherein it is preferred if at least one, preferably all optical components comprise two or more optical waveguide.
  • FIG. 1 is a perspective, schematic representation of a lighting device according to the invention in the form of a light module in a perspective view obliquely from the front,
  • FIG. 2 shows a detail of the main body of the holding device from FIG. 2 in a perspective view from the front in the region of the receptacles for the optical attachments of the optics body, FIG.
  • FIG. 4 shows the light module from FIG. 1 in a view from above
  • FIG. 5 shows the light module of FIG. 1 in a vertical section in or parallel to the optical axis of the light module
  • FIG 6 shows a section corresponding to FIG. 5 for a light module known from the prior art.
  • FIG. 1 shows an illumination device 500 according to the invention in the form of a light module.
  • the light module comprises a carrier 200 for a plurality of light sources, for example LED light sources.
  • the light module 500 comprises an optical body 1, which is held on the carrier 200 by a holding device 100.
  • a projection lens 501 with a focus Fl is shown. The light entering the optical body from the light sources is projected from the projection lens into an area in front of the vehicle into which the illustrated light module is installed.
  • FIG. 2 shows by way of example an exploded view of a holding device 100 for the optic body 1.
  • the optic body 1 comprises a number of laterally adjacent attachment optics 11, 12, 13, 14, 15, each attachment optics 11-15 being formed from a light-conducting material and each Attachment optics 11 - 15 has a light input surface IIa - 15a and a light output surface IIb - 15b.
  • the light outcoupling surfaces IIb-15b adjacent attachment optics 11-15 have a distance a> 0 to each other, as a rule, as shown, adjacent attachment optics spaced over their entire extent to each other and not only in the area of the light outcoupling surfaces to a crosstalk of To prevent light from an attachment optics in an adjacent attachment optics.
  • the attachment optics 11-15 are mechanically connected to one another with two connecting webs 21, 22 extending transversely to the attachment optics 11-15 in the region of the light output surfaces IIb-15b.
  • These connecting webs 21, 22 are usually at least partially optically ineffective.
  • the connecting webs 21, 22 are located in an installed position of the optical body (i.e., of the light module or headlight containing the optical body under consideration) in an upper and in a lower region of the optical element 1.
  • the optical body or the optical element 1 can be made of one piece.
  • the optical body 1 as shown consists of two separate optical components la, lb, each Optics component la, lb two or more attachment optics 11, 13, 15; 12, 14 (in the concrete example two and three attachment optics) comprises.
  • the invention is not limited to an optical body as shown in the figure, although the use of such an optical body is preferred. However, the invention also extends, for example, to a one-piece optical body, as well as to optical bodies in which the optical attachments are not mechanically connected to one another by means of one or more transverse webs.
  • the holding device 100 has a main body 101 and a holding body 102, which can be applied to the main body 101 and fastened to the base body 101 after introduction of the optical body 1 into the main body 101 in the direction of insertion of the optical body 1 (ie substantially counter to the light exit direction) is. Furthermore, a fastening device 101a, 102a is provided, by means of which the holding body 102 can be fixed to the base body 101.
  • the fastening device comprises latching elements 102a and corresponding latching recesses 101a, wherein the latching elements 102a are arranged on the holding body 102 and the corresponding latching recesses 101a on the main body 101.
  • body and holder body can be stably connected to each other, so that the attachment optics is held stable in the desired position.
  • the holding body 102 has an opening 102 'so that light from the light outcoupling surfaces IIb-15b of the attachment optics 11-15 can exit unhindered.
  • the holding body 102 has clamping elements 102b, which come in the mounted state of the holding body 102 on the base body 101 on the connecting webs 21, 22 on the front side surfaces to the plant and the optical body 1 with its transverse webs 21, 22 against stops 121, 122 in the body 101 Press.
  • the holding body 102 has clamping elements 102c, which in the attached state of the holding body 102 on the base body 101 at one or more Lichtauskoppel lake or preferably, as shown, in a region of the light outcoupling surfaces IIb - 15b of the attachment optics 11 - 15 come to rest.
  • the clamping elements 102b, 102c press the optical body 1 against the abutment regions 121, 122 of the main body 101, for which purpose the clamping elements 102b, 102c are preferably elastic, in particular spring-elastic.
  • lateral displacement i. to the left / right or up / down the optic body 1 can already be secured in the manner described above, or the main body 101 is formed accordingly, so that such displacement is prevented.
  • a displacement can be prevented by the receptacles described below and / or by the stops 121, 122 on all sides delimiting walls.
  • the holding device 100 namely the base body 101, has at least one receptacle 111, 112, 113, 114, 115 for each attachment optics 11-15.
  • These receptacles 111-115 are delimited by boundary walls 111 ', 112', 113 ', 114', 115 ', the boundary walls 111', 112 ', 113', 114 ', 115' having light edges on the exit side ', 112a', 113a ', 114a', 115a '.
  • Adjacent exposures 111, 112; 112, 113; 113, 114; 114, 115 are in the concrete example in each case by a common divider 212, 223, 234, 245, which forms the boundary walls 111 ', 112', 113 ', 114', 115 'for the adjacent recordings 111 - 115, separated ,
  • the boundary walls are formed of a light-impermeable material (usually the entire body of a single, light-impermeable material, often in one piece, formed), so that the boundary edges purple ', 112a', 113a ', 114a', 115a 'in a means of Optics body 1 generated light distribution are shown as vertically extending light-dark edges between the partial light distributions generated by the individual attachment optics 11 - 15.
  • the attachment optics 11-15 preferably lie directly, ie without spacing, against the boundary walls 111 ', 112', 113 ', 114', 115 'of their receptacles 111-115 in order to obtain an optimum optical representation of the light segments.
  • Boundary walls 111 ', 112', 113 ', 114', 115 'and thus boundary edges lll'a, 112' a, 113'a, 114 'a, 115'a are provided at least between the juxtaposed receptacles, is preferred However, if the two outer receptacles 111, 115 are also bounded on their outer side by a respective boundary wall 111 ', 115'.
  • the attachment optics 11-15 are arranged and / or designed such that the light output surfaces IIb-15b of the attachment optics 11
  • the focal point Fl (or the focal line) of the projection lens 501 is still in the plane El of the boundary edges, so that these boundary edges are sharply imaged in the light image and thus the light segments are sharply defined.
  • the boundary edges Due to the projecting arrangement of the light outcoupling surfaces with respect to the boundary edges, the boundary edges, which are still in a plane containing the focal point of the downstream projection lens, still sharply imaged while the light outcoupling surfaces are displayed defocused and mapped accordingly. For the light distribution within the individual light segments This blurred image is irrelevant, since it comes here anyway to a homogeneous light distribution, while the boundary of the light segments is still sharply mapped. Due to the defocusing of the light outcoupling surfaces, however, any dust deposits are shown in a defocused state and are no longer recognizable and no longer disturb the homogeneity of the light distribution.
  • the two planes E1, E2 are preferably parallel to each other as shown.

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)

Abstract

L'invention concerne un dispositif d'éclairage (500), destiné à un phare de véhicule automobile, qui comprend au moins un corps d'optique (1) et au moins un système de retenue (100) pour au moins un corps d'optique (1). Selon l'invention, le ou les corps d'optique (1) comportent une pluralité d'optiques additionnelles (11, 12, 13, 14, 15) disposées les unes à côté des autres. Chaque optique additionnelle (11 - 15) est constituée d'un matériau conducteur de lumière et possède une surface d'injection de lumière (11a - 15a) et une surface de sortie de lumière (11b - 15b). Le ou les systèmes de retenue (100) pour chaque optique additionnelle (11 - 15) comportent au moins un logement (111, 112, 113, 114, 115), les logements (111 - 115) étant délimités par des parois de délimitation (111', 112', 113', 114', 115'). Les parois de délimitation (111', 112', 113', 114', 115') comportent des bords de délimitation côté sortie de la lumière (111a', 112a', 113a', 114a', 115a'), lesdits bords de délimitation (111a', 112a', 113a', 114a', 115a') étant reproduits dans une distribution de lumière générée au moyen d'au moins un corps d'optique (1) sous la forme de bords clair-obscur entre les distributions de lumière partielles générées par les optiques additionnelles (11 - 15) individuelles. Un système de projection, de préférence une lentille de projection (501), est disposé en aval d'au moins un corps d'optique (1) dans la direction de sortie de la lumière, et les optiques additionnelles (11 - 15) sont disposées et/ou configurées de telle sorte que les surfaces d'injection de lumière (11b - 15b) des optiques additionnelles (11 - 15) dépassent des bords de délimitation (111a', 112a', 113a', 114a', 115a') des parois de délimitation (111', 112', 113', 114', 115') dans la direction de sortie de la lumière.
EP14824346.2A 2013-10-28 2014-10-27 Dispositif d'éclairage pour phare de véhicule automobile Active EP3063463B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50703/2013A AT515012B1 (de) 2013-10-28 2013-10-28 Beleuchtungsvorrichtung für einen Kraftfahrzeugscheinwerfer
PCT/AT2014/050259 WO2015061822A1 (fr) 2013-10-28 2014-10-27 Dispositif d'éclairage pour phare de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3063463A1 true EP3063463A1 (fr) 2016-09-07
EP3063463B1 EP3063463B1 (fr) 2017-08-02

Family

ID=52292579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14824346.2A Active EP3063463B1 (fr) 2013-10-28 2014-10-27 Dispositif d'éclairage pour phare de véhicule automobile

Country Status (6)

Country Link
US (1) US9915405B2 (fr)
EP (1) EP3063463B1 (fr)
JP (1) JP6196377B2 (fr)
CN (1) CN105705858B (fr)
AT (1) AT515012B1 (fr)
WO (1) WO2015061822A1 (fr)

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DE102016125887A1 (de) * 2016-12-29 2018-07-05 Automotive Lighting Reutlingen Gmbh Lichtmodul für Kraftfahrzeugscheinwerfer
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AT519356B1 (de) * 2017-04-07 2018-06-15 Zkw Group Gmbh Lichtmodul für einen Kraftfahrzeugscheinwerfer
DE102017214636A1 (de) * 2017-08-22 2019-02-28 Osram Gmbh Beleuchtungssystem, scheinwerfer und verfahren zum herstellen eines beleuchtungssystems
DE102017217902B4 (de) * 2017-10-09 2021-02-18 Osram Gmbh System aus einem Beleuchtungssystem und einer Fügevorrichtung und Verfahren zur Herstellung des Beleuchtungssystems
EP3578874A1 (fr) * 2018-06-04 2019-12-11 ZKW Group GmbH Dispositif d'éclairage pour un phare de véhicule automobile
JP7277785B2 (ja) 2020-04-10 2023-05-19 日亜化学工業株式会社 発光装置

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Also Published As

Publication number Publication date
CN105705858A (zh) 2016-06-22
US9915405B2 (en) 2018-03-13
AT515012A1 (de) 2015-05-15
EP3063463B1 (fr) 2017-08-02
JP2016535402A (ja) 2016-11-10
WO2015061822A1 (fr) 2015-05-07
JP6196377B2 (ja) 2017-09-13
US20160273727A1 (en) 2016-09-22
CN105705858B (zh) 2018-09-18
AT515012B1 (de) 2015-08-15

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