• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a lighting device (500) for a motor vehicle headlight, wherein the lighting device comprises at least one optical body (1) and at least one mounting device (100) for the at least one optical body (1), wherein the at least one optical body (1) a number of side by side arranged auxiliary optics (11, 12, 13, 14, 15), each auxiliary optics (11 - 15) is formed of a photoconductive material and each attachment optics (11-15) a light input surface (11a - 15a) and a light outcoupling surface (11b - 15b), wherein the at least one mounting device (100) has at least one receptacle (111, 112, 113, 114, 115) for each attachment optics (11-15), and receptacles (111-115) are provided by boundary walls (111 ', 112 ', 113', 114 ', 115') are limited, wherein the boundary walls (111 ', 112', 113 ', 114', 115 ') light exit side boundary edges (111a', 112a ', 113a', 114a ', 115a '), which Begre (a), 111a ', 112a', 113a ', 114a', 115a ') are imaged in a light distribution generated by the at least one optical body (1) as light-dark edges between the partial light distributions generated by the individual optical attachments (11-15) , and wherein at least one optical body (1) in the light exit direction a projection device, preferably a projection lens (501) is connected downstream, and wherein the attachment optics (11-15) arranged and / or formed such that the light outcoupling surfaces (11b - 15b) of the Front optics (11-15) in the light exit direction over the boundary edges (111a ', 112a', 113a ', 114a', 115a ') of the boundary walls (111', 112 ', 113', 114 ', 115') survive.
    公开号:AT515012A1
    申请号:T50703/2013
    申请日:2013-10-28
    公开日:2015-05-15
    发明作者:Udo Maier；Oliver Reitegger；Lukas Taudt
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    Lighting device for a motor vehicle headlight
    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 Halterungs¬ device for the at least one optical body, said at least one Op¬tikkörper having a number of adjacent optical attachments, each Vorsatzoptik is formed of a photoconductive material and each attachment optics has a light coupling-in surface and a light coupling surface, wherein the at least one mounting device has at least one receptacle for each attachment optics, and wherein 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 optics body as light-dark -Edge edges between the light generated by the individual attachment optics partial light distributions are mapped, and wherein the at least one Optikkö A projection device, preferably a projection lens, is connected downstream of the light exit direction.
    Furthermore, the invention relates to a light module for a motor vehicle headlight, with at least one such lighting device.
    In addition, the invention also relates to a motor vehicle headlamp with one or more such light modules.
    Input optical bodies are used in light modules for motor vehicle headlights for generating light distributions, for example for generating segmented light distributions, i. of light distributions made up of individual light segments. The attachment optics are usually made of plastic, silicone, glass etc. In order to meet the lighting requirements, i. In particular, to meet the legal requirements and the specifications of the car manufacturer and on the other hand to withstand the mechanical stresses as long as possible, preferably over the life of the vehicle, it is necessary that the optics body are accurately fixed and stable in this desired position.
    To delimit the individual light segments, it is necessary that they are relatively sharp, in particular laterally, limited. For this purpose, the individual attachment optics of the optic body are limited 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 Begrenzungs¬ edges of the boundary walls lie in a common area, which surface may be flat, but also curved. The focal point of a projection lens connected downstream of the optical body, which images the light distribution into an area in front of the vehicle, lies in this common plane, so that the boundary edges of the boundary walls in the light image are imaged as sharply as necessary and the light segments are accordingly sharply delimited.
    However, it has been found that dust deposits often form on the light exit surfaces of the attachment optics, which are visible in the light distribution or in the individual light segments as dark spots and undesirably disturb the homogeneity of the light distribution or the light segments.
    It is an object of the invention to eliminate this problem.
    This object is achieved with an intent optical system mentioned above in that, according to the invention, the auxiliary optics are arranged and / or designed such that the light outcoupling surfaces of the auxiliary optics project beyond the boundary edges of the boundary walls in the light exit direction.
    Due to the projecting arrangement of the light outcoupling surfaces in relation to the boundary edges, the boundary edges, which are still in a plane containing the focal point of the downstream projection lens, are still sharply focused, while the light outcoupling surfaces are imaged in a defocused manner and correspondingly blurred. For the light distribution within the individual light segments, this blurred image is irrelevant, since here a homogeneous light distribution is important anyway, while the boundary of the light segments is still sharply focused. Due to the defocusing of the light outcoupling surfaces, however, any dust deposits are displayed defocused and are accordingly no longer recognizable and no longer disturb the homogeneity of the light distribution.
    As already mentioned above, the boundary edges lie in a common area, this area preferably being continuous, in particular at least CO continuous.
    Typically, it is provided that the common surface of the boundary edges is planar and 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. Preferably, however, it is provided that the light output surfaces of the Vorsatzop¬tiken are flat.
    Furthermore, it is preferred if the light outcoupling surfaces of the attachment optics lie in a common plane.
    Furthermore, it is advantageous if the common plane of the light output surfaces has a constant distance to the common plane of the boundary edges.
    The light outcoupling surfaces thus have everywhere the same normal distance to the plane through the boundary edges of the boundary walls, thus extending in parallel.
    As already mentioned above, it is advantageous if the common surface or plane of the boundary edges lies at or contains a focal point of the projection lens. In this way, the boundary edges are sharply displayed in the photograph.
    It is expedient, if the attachment optics are directly, i. at no distance abut the boundary walls of its at least one receptacle to obtain an optimal optical representation of the light segments.
    Limiting walls are provided at least between the juxtaposed Aufnah¬men.
    However, it is particularly preferred if the two outer receptacles are also limited on their outer side by a respective boundary wall.
    In a specific embodiment of the invention, it is provided that juxtaposed receptacles are each separated from a common separating web, which forms the boundary walls for the adjacent receptacles.
    For fixing the at least one optic body in the desired position to light sources, which light which feeds the auxiliary optics, the optics body holding device is provided with a support for the one or more light sources provided for irradiating light into the optics body of the optics; connectable.
    In a concrete, practice-relevant embodiment of the invention, the position of the boundary edges is fixed to the at least one light source, and the optical body is opposite to an optical body whose light exit surfaces in a common plane. Surface with the boundary edges lie, extended in the light exit direction.
    As a result, the effects according to the invention can also be achieved by modifying the optic body even in the case of existing carrier-carrier systems.
    In a specific embodiment it is provided that the mounting 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 ausgebil¬det in the 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.
    In a specific embodiment of the invention, it is provided that 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, the at least one connecting web being at least partially optically ineffective, and the base body also having at least one abutment region on which the optics body can be brought into contact with the insertion optics in the at least one receptacle with a rearward surface of the at least one connecting web,
    To produce a segmented light distribution, it is advantageous if the light-outcoupling surfaces of adjacent auxiliary optics have a distance a > 0 to each other.
    For manufacturing reasons, it may also be advantageous if the optical body consists of at least two separate optical components, each optical component comprising at least one light guide.
    It is particularly expedient if 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 waveguides.
    In the following the invention is discussed in more detail with reference to the drawing. In this shows
    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 Vorne,
    2 light source carrier, holding device and optical body of the light module of Figure 1 in an exploded view,
    3 shows a detail of the main body of the holding device of FIG. 2 in a perspective view from the front in the region of the receptacles for the optical system of the optics body, FIG.
    4 shows the light module from FIG. 1 in a view from above,
    FIG. 5 shows the light module from FIG. 1 in a vertical section in or parallel to the optical axis of the light module, and FIG
    Fig. 6 is a section corresponding to Figure 5 for a known from the prior art light module.
    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. Furthermore, the light module 500 comprises an optical body 1, which is held on the carrier 200 by a mounting device 100. Finally, a projection lens 501 having 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 incorporated.
    FIG. 2 shows by way of example an exploded view of a holding device 100 for the optical body 1. The optical body 1 comprises a number of laterally juxtaposed auxiliary optics 11, 12, 13, 14, 15, each auxiliary optical system 11 - 15 being formed from a light-conducting material and each auxiliary optical system 11 - 15 has a light input surface 11a-15a and a light output surface 11b-15b.
    The light outcoupling surfaces 11b-15b of 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 Licht¬ausoppelflächen to prevent over talking of light from a lens attachment in an adjacent attachment optics.
    The attachment optics 11-15 are mechanically connected to one another with two connecting webs 21, 22 running transversely to the attachment optics 11-15 in the area of the light outcoupling surfaces 11b-15b. These connecting webs 21, 22 are usually optically ineffective, at least in some areas. In this case, the connecting webs 21, 22 are located in an installed position of the optical body (i.e., of the light module or headlight, which contains the observed optical body) 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. However, for manufacturing reasons, it may be particularly advantageous if the optical body 1 consists, as shown, of two separate optical components 1a, 1b, each of them
    Optics component la, lb two or more attachment optics 11, 13, 15; 12, 14 (in the concrete example two and three attachment optics).
    It should be noted at this point, however, that 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 auxiliary optics are not mechanically connected to one another by means of one or more transverse webs.
    The holder device 100 has, in the example shown, a base body 101 and a holding body 102 which can be applied to and fixed to the base 101 after the optical body 1 has been inserted into the base 101 in the direction of insertion of the optical body 1 (i.e., substantially opposite light exit direction). Furthermore, a fastening device 101a, 102a is provided, by means of which the retaining body 102 can be fixed to the base body 101.
    In the example shown, 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 base body 101. In this way, the base body and the holding body can be stably connected to one another, so that the attachment optics are stably held in the desired position.
    As can be seen from FIG. 2, the holding body 102 has an opening 102 ', so that light can exit from the light output surfaces 11b-15b of the attachment optics 11-15 unhindered.
    The holding body 102 has clamping elements 102b which, in the fastened state of the holding body 102 on the base body 101, come to rest on the connecting webs 21, 22 on their front surfaces and press the optical body 1 with its transverse webs 21, 22 against stops 121, 122 in the main body 101.
    It is further provided that the holding body 102 comprises clamping elements 102c, which in the fixed state of the holding body 102 on the base body 101 at one or more
    Lichtauskoppelflächen or preferably, as shown, in a range of Lichtauskop- pelflächen 11b - 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.
    Against 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 designed accordingly, so that such a displacement is prevented. For example, such shifting can be prevented by the receptacles described below and / or by the stops 121, 122, walls bounding on all sides.
    As can be seen from FIGS. 2 and 3, 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 exit edges limiter edges ', 112a'. 113a ', 114a', 115a '.
    Juxtaposed recordings 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 receptacles 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 one by means of the optical body 1 are generated as vertically extending light-dark edges between the partial light distributions produced by the individual attachment optics 11-15.
    The attachment optics 11-15 are preferably directly, i. without spacing on the boundary walls 111 ', 112', 113 ', 114', 115 'of their receptacle 111-115, in order to obtain an 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, it is preferred However, if the two outer receptacles 111,115 are also limited on their outer side by a respective boundary wall 111 ', 115'.
    As can be seen from FIG. 2, in the example shown, the light outcoupling surfaces 11b-15b of the attachment optics 11-15 are flat and lie in a common plane E2 (see FIGS. 4, 5).
    The boundary edges lilac ', 112a', 113a ', 114a', 115a 'also lie in a common plane E1.
    In an optical body 1 'according to the prior art, as shown in Figure 6, these two levels El, E2 coincide, and in this common plane is also the focal point Fl of the projection lens Fl. Strictly speaking, it can not be exact about a focal point but about a focal line, in the latter case, this focal line touches the plane El, E2.
    According to the invention, it is now provided that the attachment optics 11-15 are arranged and / or configured such that the light outcoupling surfaces 11b-15b of the attachment optics 11-15 project in the light exit direction over the boundary edges lilau ', 112a', 113a ', 114a', 115a 'of the boundary walls 111 ', 112', 113 ', 114', 115 'survive, as can be seen well in Figures 4 and 5. The plane E2 in which the light outcoupling surfaces lie is thus closer to the projection lens 501 than the plane El of the boundary edges.
    However, the focus 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 focused in the light image and thus the light segments are sharply defined.
    Due to the projecting arrangement of the light outcoupling surfaces in relation to the boundary edges, the boundary edges, which are still in a plane containing the focal point of the downstream projection lens, are still sharply focused, while the light outcoupling surfaces are imaged in a defocused manner and correspondingly blurred. For the light distribution within the individual light segments, this blurred image is irrelevant, since it is here anyway on a homogeneous Lichtver¬teilung arrives, while the limitation of the light segments is still sharply abgebildetdet. Due to the defocusing of the light outcoupling surfaces, however, even dust deposits that have formed are shown in a defocused manner and are therefore 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.
    权利要求:
    Claims (23)
    [1]
    1. Lighting device (500) for a motor vehicle headlight, wherein the illumination device comprises at least one optical body (1) and at least one Halterungsvor¬richtung (100) for the at least one optical body (1), wherein the at least one optical body (1) a Number of juxtaposed front optics (11, 12, 13, 14, 15), each auxiliary optics (11 - 15) is formed of a light-conducting material and each attachment optics (11-15) a light input surface (11a - 15a) and a light outcoupling surface (11b 15b), wherein the at least one holding device (100) has at least one receptacle (111, 112, 113, 114, 115) for each attachment optics (11-15), and receptacles (111-115) are provided by boundary walls (111 ', 112', 113 '). , 114 ', 115') are limited, wherein the Begrenzungs¬ walls (111 ', 112', 113 ', 114', 115 ') light exit side boundary edges (purple', 112a ', 113a', 114a ', 115a') have which limit skants (lilac ', 112a', 113a ', 114a', 115a ') are imaged in a light distribution generated by the at least one optical body (1) as light-dark edges between the partial light distributions generated by the individual front optics (11-15), and wherein the at least one optical body (1) in the light exit direction, a projection device, preferably a projection lens (501) is connected downstream, characterized in that the attachment optics (11 - 15) are arranged and / or formed such that the light-outcoupling surfaces (11b - 15b ) of the attachment optics (11-15) in the light exit direction over the boundary edges (purple ', 112a', 113a ', 114a', 115a ') of the boundary walls (111', 112 ', 113', 114 ', 115').
    [2]
    2. Lighting device according to claim 1, characterized in that the boundary edges (lilac ', 112a', 113a ', 114a', 115a ') lie in a common area (El).
    [3]
    3. Lighting device according to claim 2, characterized in that the common surface (E1) of the boundary edges (lilac ', 112a', 113a ', 114a', 115a ') is flat and preferably approximately normal to the light exit direction is arranged.
    [4]
    4. Lighting device according to one of claims 1 to 3, characterized in that the light outcoupling surfaces (11b - 15b) of the attachment optics (11 - 15) are flat.
    [5]
    5. Lighting device according to claim 4, characterized in that the Licht¬ Auskoppelflächen (11b - 15b) of the attachment optics (11 - 15) lie in a common plane (E2).
    [6]
    6. Lighting device according to claim 5, characterized in that the common plane of the light outcoupling surfaces (11b - 15b) has a constant distance to the common plane of the boundary edges (purple ', 112a', 113a ', 114a', 115a ').
    [7]
    7. Lighting device according to one of claims 2 to 6, characterized in that the common surface (El) of the boundary edges (purple ', 112a', 113a ', 114a', 115a ') is located in a focal point (Fl) of the projection lens (501) or contains this.
    [8]
    8. Lighting device according to one of claims 1 to 7, characterized in that the auxiliary optics (11 - 15) directly, i. without spacing against the boundary walls (111 ', 112', 113 ', 114', 115 ') of their at least one receptacle (111-115).
    [9]
    9. Lighting device according to one of claims 1 to 8, characterized in that boundary walls (111 ', 112', 113 ', 114', 115 ') are provided at least between the juxtaposed receptacles.
    [10]
    10. Lighting device according to claim 9, characterized in that the two outer receptacles (111,115) are also limited on their outer side by a respective boundary wall (111 ', 115').
    [11]
    A lighting device according to claim 9 or 10, characterized in that juxtaposed receptacles (111, 112; 112, 113; 113, 114; 114, 115) are each formed by a common divider (212, 223, 234, 245) defining the boundary walls (111 ', 112', 113 ', 114 ', 115') for the adjacent receptacles (111 -115) are separated.
    [12]
    12. Lighting device according to one of claims 1 to 11, characterized gekennzeich¬net, that the mounting device (100) with a support (200) for one or more light sources (2), which for the irradiation of light in the attachment optics (11-15) of the optical body (1) are provided, is connectable.
    [13]
    13. Lighting device according to claim 12, characterized in that the position of the boundary edges (purple ', 112a', 113a ', 114a', 115a ') is fixed to the at least one light source (2), and the optical body (1) opposite to an optical body ( 1 '), the light exit surfaces are in a common plane (El) or surface with the Begrenzungskan¬ten extended in the light exit direction.
    [14]
    14. Lighting device according to one of claims 1 to 13, characterized gekennzeich¬net, that the mounting device (100) comprises a base body (101), which with the carrier (200) for the one or more light sources (2) for feeding light into the Optic body (1) is connectable.
    [15]
    A lighting device according to claim 14, characterized in that the receptacles (111, 112, 113, 114, 115) for the front optics (11-15) are formed in the base body (101).
    [16]
    16. Lighting device according to claim 15, characterized in that the front optics (11-15) with at least one transverse to the attachment optics (11-15) verlaufenden connecting web (21, 22) in the region of the light output surfaces (11b - 15b) mecha¬nisch the at least one connecting web (21, 22) being at least partially optically inoperative, and wherein the main body (101) further comprises at least one abutment region (121, 122) on which the optical body (1) is inserted when the auxiliary optics (11 - 15) in the at least one receptacle (111,112,113,114, 115) with a rear surface (21 ', 22') of the at least one connecting web (21, 22) can be brought into contact,
    [17]
    17. Lighting device according to one of claims 1 to 16, characterized gekennzeich¬net, that the light outcoupling surfaces (11b - 15b) of adjacent auxiliary optics (11-15) has a distance a > 0 to each other.
    [18]
    18. Lighting device according to one of claims 1 to 17, characterized gekennzeich¬net that the optical element (1) consists of at least two separate optical components (la, lb), each optical component (la, lb) at least one light guide (11, 13, 15; 12, 14).
    [19]
    19. Lighting device according to claim 18, characterized in that the optical element (1a, 1b) consists of exactly two optical components (1a, 1b).
    [20]
    20. Lighting device according to one of claims 1 to 19, characterized gekennzeich¬net that at least one, preferably all optical components (la, lb) comprise two or more Lichtleit¬körper (11,13,15; 12,14).
    [21]
    21. Light module for a motor vehicle headlight, comprising at least one lighting device (1000) according to one of claims 1 to 20.
    [22]
    22. A motor vehicle headlight with one or more lighting devices (1000) according to one of claims 1 to 21 or with one or more light modules according to claim 21.
    [23]
    23. Motor vehicle headlight according to claim 22 for generating a dynamic light distribution.
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    同族专利:
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    CN105705858A|2016-06-22|
    US20160273727A1|2016-09-22|
    JP2016535402A|2016-11-10|
    AT515012B1|2015-08-15|
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    WO2015061822A1|2015-05-07|
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    DE102016009067A1|2016-07-27|2018-02-15|Docter Optics Se|Headlight lens for a motor vehicle headlight|
    DE102016124800A1|2016-12-19|2018-06-21|Automotive Lighting Reutlingen Gmbh|Primary optics module for use in a motor vehicle lighting device and motor vehicle lighting device with such a primary optics module|
    DE102016125887A1|2016-12-29|2018-07-05|Automotive Lighting Reutlingen Gmbh|Light module for motor vehicle headlights|
    DE102017204527A1|2017-03-17|2018-09-20|Osram Gmbh|Lighting system and headlights|
    AT519356B1|2017-04-07|2018-06-15|Zkw Group Gmbh|Light module for a motor vehicle headlight|
    DE102017214636A1|2017-08-22|2019-02-28|Osram Gmbh|LIGHTING SYSTEM, HEADLIGHTS AND METHOD FOR MANUFACTURING A LIGHTING SYSTEM|
    DE102017217902B4|2017-10-09|2021-02-18|Osram Gmbh|System comprising a lighting system and a joining device and method for producing the lighting system|
    EP3578874A1|2018-06-04|2019-12-11|ZKW Group GmbH|Lighting device for a motor vehicle headlamp|
    法律状态:
    2016-11-15| HC| Change of the firm name or firm address|Owner name: ZKW GROUP GMBH, AT Effective date: 20161014 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50703/2013A|AT515012B1|2013-10-28|2013-10-28|Lighting device for a motor vehicle headlight|ATA50703/2013A| AT515012B1|2013-10-28|2013-10-28|Lighting device for a motor vehicle headlight|
    US15/032,706| US9915405B2|2013-10-28|2014-10-27|Lighting device for a motor vehicle headlight|
    PCT/AT2014/050259| WO2015061822A1|2013-10-28|2014-10-27|Lighting device for a motor vehicle headlight|
    JP2016526879A| JP6196377B2|2013-10-28|2014-10-27|Lighting equipment for automotive headlamps|
    CN201480059253.4A| CN105705858B|2013-10-28|2014-10-27|Lighting device for motor-driven vehicle headlight adapter|
    EP14824346.2A| EP3063463B1|2013-10-28|2014-10-27|Lighting device for a motor vehicle headlight|
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