• 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 light guide unit (3) for a lighting unit (1) for a headlight, in particular a motor vehicle headlight, wherein the lighting unit (1) comprises a plurality of light sources (2), the light guide unit (3) and a downstream projection lens (4) Light guide unit (3) comprises a plurality of light guides (30), each light guide (30) each having a light outcoupling surface (30a), and wherein each light source (2) precisely couples light into its associated light guide (30), and wherein adjacent light guides (30) are separated by partitions (31, 32). According to the invention, the light guide unit (3) comprises a receiving element (5), which receiving element (5) has a receiving opening (5a) completely penetrating the receiving element (5), and at least one light guide body (6) which comprises at least one light guiding body (6). in which at least one part of the light guides (30) of the light guide unit (3) is formed, and wherein the at least one light guide body (6) projects into the receiving opening (5a ) of the receiving element (5) ist.Fig.
    公开号:AT513816A1
    申请号:T50609/2012
    申请日:2012-12-20
    公开日:2014-07-15
    发明作者:Irmgard Krenn
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    P12886
    Light guide unit for a lighting unit of a headlight
    The invention relates to a light guide unit for a lighting unit for a headlight, in particular a motor vehicle headlight, wherein the lighting unit comprises a plurality of light sources, the light guide unit and a downstream projection lens, the light guide unit having a plurality of light guides, each light guide each having a light outcoupling surface, and wherein each light source exactly couples light into a light guide associated therewith, and wherein adjacent light guides are separated by partitions.
    Furthermore, the invention relates to a lighting unit with such a light guide unit.
    Finally, the invention also relates to a vehicle headlight for a motor vehicle with at least one such lighting unit.
    With a lighting unit as mentioned above, it is possible to use a light function such as a light source. to build a low beam distribution or a high beam distribution of a plurality of partial light distributions. These partial light distributions can be individually controlled by individual control of the light sources, so that, for example, parts of the light distribution can be selectively hidden or dimmed or only certain parts of the light distribution can be operated or dimmed. This makes it possible to control the light distribution as a function of the driving situation almost arbitrarily.
    Functions which can be realized with this technique are e.g. Partial distance light, in which the glare reduction of the oncoming traffic segments in the light image of the high beam distribution are switched, shifting the light center in the low beam (see cornering light), Reduküon the apron light distribution for the purpose of glare-free oncoming traffic on wet roads (bad weather light), etc.
    The individual light segments in the light distribution are generated by means of light guides, which are joined together to form a light guide unit, and through which light guides emitted by the artificial light sources are focused in the emission direction. The light guides have a relatively small cross-section and send the 2/28 -2 PI2886
    Light of their each associated individual light sources therefore very concentrated in the emission direction. In AT 510 437 A4 a light module is disclosed in this context, which has a light guide in the form of a light guide, there called a light tunnel, and a plurality of light sources.
    The concentrated radiation of the light guides is desirable to meet, for example, legal requirements regarding the light-dark line of the dipped beam of a motor vehicle headlight. In addition, sharply delimited light segments generated by the light guides have the advantage that exactly limited areas can be hidden in a light image.
    Inevitably, to be able to generate separate light segments, the light guides are separated from each other. Usually, a light guide unit, which has a number of light guides, in one piece (or in two parts, one in the light exit direction front and one rear part - this is for the present invention, however, incidentally), and the individual light guides are from each other separated, specifically by walls or dividers, which extend in the light exit direction into the region of the light outcoupling surfaces of the individual light guides. Typically, the light guide units are made of metal or plastic, in a two-part construction as briefly mentioned above, the two parts can also be made of different materials.
    At the "one-piece " Producing the light guide unit with the light guides formed in it, however, has the disadvantage that the wall thickness of the (separation) walls or (separating) webs between adjacent light guides in the light output areas of the light guides has a certain value, the production technology not or only can be undershot with great effort. However, an excessive wall thickness of the partitions between the light guides leads to the formation of stripes, in particular vertical and / or horizontal stripes, in the photograph.
    It is an object of the invention to provide a lighting unit for headlights, in which in a simple and cost-effective manner, the adverse effects described above can be prevented or greatly reduced. 3/28 -3- PI2886
    The object is achieved with an aforementioned light guide unit for a light unit, that according to the invention the light guide unit comprises a receiving element, which receiving element has a receiving opening completely penetrating the receiving element receiving opening, and further comprises at least one light guide body, which at least one light guide body as separated from the receiving element formed component is formed in which at least one light guide body at least a part of the light guides of the light guide unit is formed, and wherein the at least one light guide body is inserted into the receiving opening of the receiving element.
    Due to the separate design of the light guides in the form of at least one separate light guide body, this at least one light guide body can be optimally processed in manufacturing technology and the suitable material used to minimize wall thicknesses of the partitions, which separate adjacent light guides, especially in the light outcoupling of the light guides to be able to realize.
    It is preferably provided that the at least one light guide body is fixedly secured in the receiving opening of the receiving element.
    After insertion and positioning of at least one light guide body in the photometrically correct position in the receiving opening fixed, usually detachable, so that it can not change its position even in the ferry mode of a motor vehicle
    For example, the light guide body is heat staked with the receiving element, or the two parts are locked together.
    With particular advantage it is provided that exactly one light guide body is provided, which has all the light guides of the light guide unit.
    If it is favorable for structural reasons, etc., it may also be provided that two or more light guide bodies are provided, which lie laterally next to one another, for example in the installed position. In general, however, it is sufficient if only one Lichtfüh- 4/28 -4- PI2886 approximately body is used, which fills practically the entire receiving opening of the receiving element. The use of a single light guide body has usually manufacturing technology and storage technology advantages, and the assembly of the light guide unit is significantly easier and faster possible with only one light guide body.
    In a specific embodiment, it is provided that the at least one light guiding body in the installation position has laterally adjacent light guides extending essentially over the entire height of the light guide body.
    In this way, a series of adjacent light guides is realized.
    In a further improved embodiment it is provided that in the at least one light guide body holding openings, e.g. Retaining slots are provided for receiving at least one in the installed position substantially horizontal heirloom divider.
    In a specific embodiment, it is provided that retaining openings, e.g. Holding slots for exactly two dividers are provided, wherein the holding openings are arranged such that hangs in installation position a divider above the second divider, and wherein the dividers used divided over the entire height of the light guide body extending light guides in three rows of light guides.
    With three rows of light guides, for example, a far area, an apron area in the region of a light-dark boundary (for example for a low beam) and an apron near area for illuminating the area near the front of the vehicle can be realized in the light image.
    Furthermore, it is provided that the at least one separating web extends over substantially the entire width of the at least one light guiding body. On the one hand, this has manufacturing advantages and, on the other hand, permits a simple, accurate positioning or mounting of the light guide body on the receiving element, as will be discussed in the further description.
    It is particularly advantageous if the at least one light guide body is formed from an elongated and flat, preferably flat element, on which element a number of bending lines are provided, which bending lines extend normal to the longitudinal sides of the element , And wherein the element is bent at the bending lines such that continuous, over the entire height of the light guide body ersteckende and immediately adjacent light guides are formed.
    Such an element can be configured particularly easily, at least in the region of the sections forming the partitions between the light guides in the region of the light outcoupling surfaces, with little thickness, so that the partitions between the light guides in the region of the light outcoupling surfaces can then be designed with a small wall thickness.
    Specifically, it is provided that in pairs two bending lines at a first distance from each other, and wherein adjacent pairs of bending lines at a second distance which is greater than the first distance to each other, wherein the second distance between two adjacent bending lines of adjacent pairs is measured from bending lines, and wherein the element is bent around the two bending lines of a bending line pair in each case in the same direction by 90 °, and wherein the bending lines of adjacent bending line pairs are bent in the opposite direction.
    In this way, side by side, vertical light guides are gebüdet.
    In order to obtain the same width light guides, it is provided that the distance between two bending lines of a pair of bending lines for all pairs of bending lines of the element is identical.
    In order to obtain the same high, continuous over the entire height light guides, it is provided that the distance between two adjacent bending line pairs between all pairs of bending lines of the element is identical.
    Furthermore, it is provided in a specific embodiment that the element has on a longitudinal side in each case between two pairs of bending lines protruding portions which form the vertical partitions between vertical light guides in the region of the light outcoupling surfaces of the light guides in the finished state. 6/28 -6- PI2886
    These sections provide a possibility for vertical centering of the light guide body in the receiving opening. In addition, these sections are preferably designed with the least possible (wall) strength, since these form the vertical partitions between the light guides in the region of the light output surfaces. With the regions bent over these sections in the bent state upwards and downwards, the light guiding body is inserted into the receiving opening and fastened there.
    In a simple embodiment of the invention it is provided that the projecting portions are rectilinear, i. are formed parallel to the opposite longitudinal side.
    The light outcoupling surfaces of the light guides preferably lie in a focal plane of the projection lens. Accordingly, the light outcoupling surfaces are curved. In order to be able to realize this, it is therefore preferably provided that the protruding sections are curved, namely curved toward the opposite longitudinal side.
    In this way, a curvature of the light output surfaces in the vertical direction can be realized.
    Typically, it is provided that the curved sections have approximately in their middle a Mindestanstand to the opposite longitudinal side.
    In order to further realize a curvature of the light outcoupling surfaces in the horizontal direction, it is provided that in the two laterally outer regions of the element, the projecting portions have the greatest distance to the opposite longitudinal side, and that from both sides with a progression along the longitudinal side in the direction the center of the element remove the distances of the projecting portions to the opposite longitudinal side.
    For realizing two or more horizontal rows of light guides it is provided that the at least one holding opening, e.g. Retaining slot or preferably the two holding openings or holding slots for the at least one divider, preferably arranged for two dividers in the region of the protruding portions, preferably 7/28 -7- PI2886 as a slot-shaped, starting from the protruding portions normal to the longitudinal sides in the element are formed in extending recesses.
    The projecting portions constituting continuous vertical light guides are thus divided in the vertical direction.
    Furthermore, it is provided that the longitudinal side opposite the jumping sections is formed continuously straight.
    On the material side, it has proven to be beneficial if the element is a sheet metal element. Such a sheet metal element can be processed well, is inexpensive and stable.
    In order to be able to realize the smallest possible thickness in the region of the protruding sections, ie a small thickness of the vertical partitions between the light guides, in particular in the area of the light outcoupling surfaces, it can be provided that the element has a continuous thickness, preferably of approximately 0.1 mm ,
    However, then the case may occur that the element does not withstand the mechanical stresses, especially during installation and slightly deformed, such as bends.
    Therefore, it is provided in another advantageous realization that the element at least, preferably only in the region of the partitions between the vertical light guides, preferably in the region of the light outcoupling surfaces, to a defined thickness, preferably made a thickness of about 0.1 mm, preferably is characterized.
    The element can thus be dimensioned sufficiently strong to withstand the mechanical stresses and is only used in the optically relevant areas, i. in those areas, which represent the vertical partitions in the area of the light output surfaces, made with low (he) strength.
    In a concrete realization of the invention it is provided that the element is punched in its pre-bending mold.
    Furthermore, it is advantageously provided that the light guide body or the element, preferably the sheet metal element reflecting light, preferably has a high gloss. 8/28 -8- PI2886
    Preferably, mirror plates having a reflectance of> 95% are used for this purpose.
    In particular, it is provided that the element, preferably the sheet metal element is reflective on both sides, in particular high gloss.
    Furthermore, it is advantageously provided that the at least one separating web, light-reflecting, preferably has a high gloss, is preferably reflective on both sides, in particular of high gloss.
    Preferably, the receptacle is formed from a plastic. This can be very easy to shape.
    Furthermore, it is also provided with advantage that the receptacle in its receiving opening, at least in the upper and / or lower region of light reflecting, in particular high-gloss formed, preferably coated with a light reflective, especially high-gloss layer is coated as about.
    The light guides of the upper or lower row are bounded upwards or downwards by the upper or lower inner side of the receiving element, so that it is advantageous if these areas are formed reflecting light.
    Furthermore, it is provided, for example, that the at least one light guide body is light-reflecting, in particular high-gloss lacquered.
    In the following the invention with reference to the drawing of an exemplary embodiment of the invention is discussed in more detail. In this shows
    1 is an exploded perspective view of a lighting unit with a light guide unit according to the invention,
    2 is an exploded perspective view of a light guide unit according to the invention,
    Fig. 3 is a sheet metal element for forming the Lichtführungskörpers before the Umbiegeprozess, 9/28 -9- PI2886
    4 shows a light guide body formed from a sheet metal element of Figure 3 in a perspective view,
    5 shows a section along the plane A-A through a light guide unit of Figure 1,
    Fig. 5a shows a detail of Figure 5 in the region of the slots in the receiving opening, and
    6 shows a section along the plane C-C through a light guide unit from FIG. 1.
    1 shows a lighting unit 1 according to the invention for a motor vehicle headlight, comprising a plurality of light sources 2, a light guide unit 3 with a plurality of light guides 30 and a downstream projection lens 4. Each light guide 30 has a light outcoupling surface 30a, and one - in the figures unrecognizable light input surface - couples each light source 2 light exactly in its associated light guide 30 a.
    The light sources 2 are LED light sources, each LED light source 2 comprising at least one or exactly one light-emitting diode. Preferably, each LED light source 2 is separately controllable and switched on or off and / or dimmable, preferably with two or more LEDs per LED light source each LED of a LED light source separately controlled and switched on and off and / or is dimmable.
    The light guides 30 are arranged in the light guide unit 3 next to one another and in the example shown in three superimposed rows. The light guides 30 are aligned substantially in the direction of an optical axis x associated with the projection lens 4.
    In the embodiment shown, the light guides 30 are designed as reflectors, thus forming a quasi hollow tube, and have light outcoupling surfaces 30a, which are adapted to emit the light in the direction of the downstream projection lens 4. The light output surfaces 30a as well as the unrecognizable light input surfaces are thus limited openings in the light guide unit 3. 10/28 -10- PI2886
    The light guides 30 are respectively bounded by two substantially vertical (separation) walls 31 and two substantially horizontal (separation) walls 32. The light guides 30 of the upper and lower rows are rectangular in the example shown, while the light guides of the middle row are square. The vertical walls 31 each delimit and separate laterally juxtaposed light guides 30, and in addition, the light guides 30 of the middle row are separated from the upper and lower ones by the horizontal partitions 32, respectively.
    In fact, the reference numerals 31 and 32 designate the respective walls in the area of the light outcoupling surfaces 30a of the light exit surfaces 30. However, as will be clear to those skilled in the art what is meant, the reference numerals 31, 32 for both the partitions and their edges in the area of Lichtauskoppelflächen 30a used. As far as it makes a difference, whether it is the edge or the entire partition, this is explicitly mentioned in the text.
    These dividing walls 31, 32 now have a certain wall thickness in the area of the light outcoupling surfaces 30a due to manufacturing technology; If this wall thickness is too large, vertical and horizontal stripes form in the light image between the activated light segments.
    Normally, a light guide unit is made in one piece. However, this results in the disadvantage that the wall thickness of the (separation) walls or (separating) webs between adjacent light guides in the region of the light outcoupling surfaces of the light guides has a certain value, the production technology can not be reached or only with great effort. However, an excessive wall thickness of the partitions between the light guides leads to the formation of stripes, in particular vertical and / or horizontal stripes, in the photograph.
    In order to be able to realize smaller wall thicknesses in a simple manner, in particular in the area of the light outcoupling surfaces 30a of the light guides 30, it is provided that the light guiding unit 3 comprises a receiving element 5, as shown in FIG. 2, which receiving element 5 completely penetrates the receiving element 5 in the light exit direction Receiving opening 5a has. Furthermore, it comprises a light guiding body 6, which is designed as a component 11/28 -11-PI2886 separated from the receiving element 5. In the light guide body 6, the light guides 30 of the light guide unit 3 are formed. The light guide body 6 is inserted into the receiving opening 5a of the receiving element 5, so that the light guide unit 3 shown in Figure 1 results.
    Due to the separate design of the light guides 30 in the form of a separate light guide body 6, this light guide body 6 can be processed in an optimal manner manufacturing technology and the appropriate material used to minimize the wall thicknesses of the partitions 31, which adjacent light guides 30 separate from each other, especially in the area of Lichtauskoppelflächen 30a of the light guides 30 to realize.
    The light guide body 6 is fixed in the receiving opening 5a of the receiving element 5, usually insoluble, so that it can not change its position even in the ferry mode of a motor vehicle
    For example, the light guide body 6 is hot-clamped with the receiving element 5, or the two parts 5, 6 are locked together.
    The light guide body 6 has, in the installed position, as can be seen particularly well in Figure 2 and Figure 4, laterally adjacent, substantially over the entire height of the light guide body 6 extending light guides 30 ', so that with the light guide body 6 a row next to each other Light guides 30 'is realized.
    It is further provided that in the light guide body 6 holding openings, e.g. Retaining slots 23 are provided for receiving two in the installed position substantially horizontal separating webs 7, 8. Divider 7 is located above the divider 8, so that the dividing bars used 7, 8 subdivide over the entire height of the light guide body 6 extending light guides 30 'in three rows of light guides 30.
    For example, with three rows of light guides in the light image, a far-end area, an apron area in the range of a light-dark boundary (for example for a low beam) and a 12/28 -12-PI2886
    Apron close range to illuminate the area near the front of the vehicle can be realized.
    In the front region, the dividing webs 7, 8 converge in narrow edges 32 (or the dividing webs 7, 8 are formed correspondingly narrow continuously); these edges 32 limit in the inserted state, the light outcoupling surfaces 30a in the horizontal direction. The separating webs 7, 8 can be easily formed as individual parts at least in the region of their edges 32 with a small wall thickness, so that horizontal stripes can be completely eliminated in the light image.
    The dividers 7, 8 extend over substantially the entire width of the light guide body 6. This on the one hand manufacturing advantages and on the other hand allows a simple, accurate positioning or support of the light guide body on the receiving element, as will be discussed in the further description.
    The dividers 7, 8 are laterally slightly over the light guide body 6 and then - see in particular Figures 1 and 2 - bent by about 90 ° with sections 7a, 8a up or down. The light guide body 6 is inserted from behind into the receiving opening 5a of the receiving element 5, the receiving element 5 has in the receiving opening 5a in the front region one or more stops (namely the end portions of the slots 5b), so that the position of the light guide body 6 is defined in the insertion direction , Before inserting the light guide body 6, the separating webs 7, 8 are inserted into the light guide body 6 from the front into the holding openings 23. By inserting from the front, the separating webs 7, 8 are secured in the light guide body 6 after insertion of the light guide body 6 in the receiving opening 5a against displacement in the light exit direction.
    The horizontal separating webs 7, 8 also have slots 7b, 8b, which are the same distance apart from each other as the vertical, the light guides 30 'forming partitions 21'. Thus, the dividers 7, 8 can be further inserted into the retaining slots 23, so that the dividers 7, 8 with their slots 7b, 8b embrace the vertical partitions in a rear area and thus the dividers 7b, 8b with respect to the light guide body 6 no longer can be moved laterally. By this locking the dividers 7, 8 are connected to the light guide body 6. 13/28 -13- PI2886
    The bent portions 7a, 8a of the separating webs 7, 8 engage around the insertion of the light guide body 6 in the receiving opening 5a, the receiving element 5 from the outside, so that the light guide body 6 is secured against lateral movement on the receiving element 5. Usually, the light guide body 6 is hot-spliced, for example, in the plastic holder 5 or otherwise connected thereto. The dividers 7, 8 then automatically hold as described above between the light guide body 6 and the plastic holder 5. However, it is certainly also possible to additionally connect the dividers together with the light guide body with each other by known methods.
    Manufacturing technology is provided that the light guide body 6 is formed from an elongated and flat, preferably flat element 20. Such an element 20 is shown in FIG. At this element 20 a number of bending lines (24) are provided, which extend normal to the longitudinal sides 21, 22 of the element 20, and wherein the element 20 is bent at the bending lines 24 such that continuous, over the entire height of the Lichtführungskörpers 6 ersteckende and immediately adjacent light guides 30 'are gebüdet.
    FIG. 4 shows the element 20 from FIG. 3 after the bending process.
    Such an element 20 can be made particularly simple, at least in the area of the partitions between the light guides in the region of Lichtauskoppelflächen limiting portions 21 'with low strength, so that the (vertical) partitions 31 between the light guides 30 in the region of Lichtauskoppelflächen 30a with low wall thickness can be guided out.
    Specifically, it is provided that in pairs two bending lines 24 at a first distance dl to each other, and wherein adjacent pairs of bending lines 24 at a second distance d2, which is greater than the first distance dl, are arranged to each other, wherein the second distance d2 is measured between two adjacent bending lines 24 of adjacent pairs of bending lines 24, and wherein the element 20 is bent around the two bending lines 24 of a bending line pair in the same direction by 90 °, and wherein the bending lines 24 adjacent bending line pairs in the opposite direction are bent. 14/28 -14- PI2886
    In this way, adjacent vertical light guides 30 'are formed (see FIG. 4).
    In order to obtain the same width light guides 30 ', 30, it is provided that the distance dl between two bending lines 24 of a pair of bending lines for all bending line pairs of the element 20 is identical.
    In order to obtain the same high, continuous over the entire height light guides, it is provided that the distance d2 between two adjacent bending line pairs between all pairs of bending lines of the element 20 is identical.
    To form the vertical partitions 31 it is provided that the element 20 on a longitudinal side 21 each between two pairs of bending lines protruding portions 21 'which in the finished state, the vertical partitions 31 between vertical light guides 30'; 30 in the region of the light output surfaces 30a of the light guides 30 '; 30 form.
    On the one hand, these sections 21 'form a possibility for vertical centering of the light guide body 6 in the receiving opening 5a, on the other hand, these sections 21' can be particularly simple perform with the least possible (wall) strength. With the region 6b protruding upwards and downwards in the bent state over the light guides 30 '(see FIGS. 2, 4, 5), the light guiding body is inserted into the receiving opening and positioned / fastened there.
    In a simple embodiment of the invention, it is provided that the projecting portions 21 'are rectilinear, i. are formed parallel to the opposite longitudinal side 22.
    Preferably, the light outcoupling surfaces 30a of the light guides 30 lie in a focal plane of the projection lens 4, as shown in FIG. Accordingly, preferably the light outcoupling surfaces 30a and thus the partition walls 31, 32 are formed curved, as can be clearly seen in Figure 2. In order to be able to realize this, it is therefore preferably provided that the projecting sections 21 'are curved, namely curved toward the longitudinal side 22 lying opposite the plane 15'. In this way, a curvature of the light output surfaces in the vertical direction can be realized.
    Preferably, it is provided that the curved portions approximately at the level of the lower surface of the upper separating web 7 have a Mindestanstand to the opposite longitudinal side 22.
    In order to further realize a curvature of the light outcoupling surfaces in the horizontal direction, it is provided that in the two laterally outer regions of the element 20, the projecting portions 21 'have the greatest distance to the opposite longitudinal side 22, and that from both sides with a progression along the longitudinal side in the direction of the center of the element 20, the distances of the projecting portions 21 'to the opposite longitudinal side 22 decrease.
    However, these curved sections are only minimally indicated in FIG. 3 and are not particularly well recognizable in FIG. 4, since these two figures are intended only to illustrate the shaping of a light guide body (FIG. 4) from a planar element (FIG. 3), the curvatures in FIG however, both directions are clearly visible in FIG.
    The two holding openings or holding slots 23 for which the two separating webs 7, 8 are arranged in the region of the projecting portions 21 'and are preferably in the form of slit-shaped portions extending from the projecting portions 21' normal to the longitudinal sides 21, 22 formed in extending recesses.
    Furthermore, it is provided that the projecting portions 21 'opposite longitudinal side 22 is formed continuously straight.
    Figures 3 and 4 and Figure 6 show portions 21 "connecting the longitudinal side portions 21 to the protruding portions 21 '(for example, these portions 21" are approximately normal to the longitudinal side portions 21). These sections 21 "serve for the vertical centering of the light guide body 6 in the receiving opening 5 (see FIG. 6). The receiving opening 5a is designed such that after insertion of the light guiding 16/28 -16 PI2886 body 6 this with the sections 21 " at the receiving opening 5a is above and below and thus posiuoniert in the vertical direction.
    For positioning the light guide body 6 in the receiving opening 5a is basically the following. After or at the same time with the insertion of the partitions 7, 8 in the light guide body 6 of this is used as already described from behind into the receiving opening 5a. In the upper and lower regions, the receiving opening 5a has slits 5b extending in the light exit direction. With the upwardly and downwardly over the light guides 30 'projecting portions 6b (see Figures 2,4, 5) of the light guide body 6 is inserted into the contactors 5b until it is present. At the top, the light guide body 6 is provided with the sections 21 " at the receiving opening 5b (see Figure 6). A seitüches displacement is prevented by the bent portions 7b, 8b of the dividers 7, 8.
    If one also looks at FIG. 5a, which shows a detail from FIG. 5, it can still be provided, as shown, that the contactors 5b have narrowing points. The contactors 5b have a greater width than the wall thickness of the element 20 in the region 6b. Due to the constrictions, which result from narrowing in the shooter 5b laterally projecting constriction element 5b ', the light guide body 6 is held in the contactors 5b after insertion by clamping.
    Preferably, the element 20 is a sheet metal element. In order to be able to realize the lowest possible thickness in the region of the protruding sections 21 ', ie a small thickness of the vertical partition walls 31 between the light guides 30, in particular in the area of the light outcoupling surfaces 30a, it can be provided that the element 20 has a continuous thickness, preferably of approx 0.1 mm.
    Advantageously, it is provided in another embodiment, however, that the element 20 is made only in the region of the partitions 21 'between the vertical light guides 30', preferably in the region of the light outcoupling surfaces 30a, to a defined thickness, preferably a thickness of about 0.1 mm , is preferably embossed, while in the other areas, the element has a greater thickness and thus the element is stably shaped. Only in the optically important region of the light outcoupling surfaces, which region is imaged in the light image, the element thus has a (compared to the rest of the element) low (re-) strength. 17/28 -17- PI2886
    In a concrete realization of the invention, it is provided that the element 20 is punched into its pre-bending mold as shown in FIG. The element 20 is practically punched out of a larger element, such as sheet metal element in the form in which it is finally subjected to the bending process. The various configurations, such as slots, projections are thus punched into the starting material before it is then bent along the bending lines.
    The element 20 is light-reflecting, preferably of a high-gloss design, wherein it is advantageously designed to be reflective on both sides, in particular high-gloss. For example, it is provided that the light guide body 6 is painted high gloss.
    The receptacle 5 is advantageously formed from a plastic. Furthermore, it is also provided with advantage that the receptacle 5 in its receiving opening 5a at least in the upper and lower region 5c light reflecting, in particular high-gloss, preferably coated with a light-reflecting, especially high-gloss layer, is vapor-deposited.
    Likewise, the separating webs 7, 8 light reflective, in particular high gloss (preferably both sides) formed, for example, painted.
    The light guides of the upper or lower row are bounded upwards or downwards by the upper or lower inner side of the receiving element, so that it is advantageous if these areas are formed reflecting light. 18/28
    权利要求:
    Claims (30)
    [1]
    1. A light guide unit (3) for a lighting unit (1) for a headlight, in particular a motor vehicle headlight, the lighting unit (1) having a plurality of light sources (2), the light guide unit (3) and a downstream projection lens ( 4), wherein the light guide unit (3) has a plurality of light guides (30), each light guide (30) each having a light output surface (30a), and wherein each light source (2) precisely into a light guide associated therewith (30) coupled, and wherein adjacent light guides (30) by partition walls (31, 32) are separated from each other, characterized in that the light guide unit (3) comprises a receiving element (5), which receiving element (5) in a light exit direction of the receiving element (5) completely Having through receiving opening (5a), and further comprises at least one light guide body (6), which at least one Lichtfüh in which at least one light guide body (6) at least one part of the light guides (30) of the light guide unit (3) is formed, and wherein the at least one light guide body (6) in the receiving opening (5a) of the receiving element (5) is inserted.
    [2]
    2. light guide unit according to claim 1, characterized in that the at least one light guide body (6) in the receiving opening (5a) of the receiving element (5) is fixedly fixed.
    [3]
    3. light guide unit according to claim 1 or 2, characterized in that exactly one light guide body (6) is provided, which all light guides (30) of the light guide unit (3).
    [4]
    4. light guide unit according to one of claims 1 to 3, characterized in that the at least one light guide body (6) in the installation position laterally side by side 19/28 -19- PI2886 lying substantially over the entire height of the light guide body (6) extending light guides ( 30 ').
    [5]
    5. Light guide unit according to claim 4, characterized in that in the at least one light guide body (6) holding openings, e.g. Holding slots (23) for receiving at least one in the installed position substantially horizontal separating web (7, 8) are provided.
    [6]
    6. Light guide unit according to claim 5, characterized in that holding openings, e.g. Holding slots (23) for exactly two dividers (7, 8) are provided, wherein the holding openings (23) are arranged such that in installation position a separating web (7) above the second separating web (8), and wherein the inserted separating webs (7 , 8) the over the entire height of the light guide body (6) extending light guides (30 ') divided into three rows of light guides (30).
    [7]
    7. Light guide unit according to claim 5 or 6, characterized in that the at least one separating web (7, 8) extends over substantially the entire width of the at least one light guide body (6).
    [8]
    8. light guide unit according to one of claims 1 to 7, characterized in that the at least one light guide body (6) consists of an elongated and flat, preferably flat element (20) is formed on which element (20) has a number of bending lines (24) are provided, which bending lines (24) extend normal to the longitudinal sides (21, 22) of the element (20), and wherein the element (20) at the bending lines (24) is bent such that continuous, over the entire height the Lichtführungskörpers (6) ersteckende and immediately adjacent light guides (30 ') are formed.
    [9]
    9. light guide unit according to claim 8, characterized in that in pairs two bending lines (24) at a first distance (dl) to each other, and wherein adjacent pairs of bending lines (24) at a second distance (d2), which is greater than that first spaced (dl), the second distance (d2) being measured between two adjacent bendlines (24) of adjacent pairs of bendlines (24), and wherein the element (20) is about the two bendlines (24) of a bendline Pairs are bent in the same direction by 90 ° each in 20/28 -20- PI2886, and wherein the bending lines (24) of adjacent Biegeli-nien pairs are bent in opposite direction Richtimg.
    [10]
    10. light guide unit according to claim 9, characterized in that the distance (dl) between two bending lines (24) of a bending line pair for all bending line pairs of the element (20) is identical.
    [11]
    11. Light guide unit according to claim 9 or 10, characterized in that the distance (d2) between two adjacent bending line pairs between all pairs of bending lines of the element (20) is identical.
    [12]
    12. Light guide unit according to one of claims 8 to 11, characterized in that the element (20) on a longitudinal side (21) in each case between two pairs of bending lines protruding portions (21 ') which in the finished state, the vertical partitions (31) between vertical light guides (30 ', 30) in the area of the light output surfaces (30a) of the light guides (30', 30).
    [13]
    13. Light guide unit according to claim 12, characterized in that the projecting portions (21 ') extending rectilinearly, i. are formed parallel to the opposite longitudinal side.
    [14]
    14. Light guide unit according to claim 12, characterized in that the projecting portions (21 ') are curved, namely curved towards the opposite longitudinal side (22).
    [15]
    15. Light guide unit according to claim 14, characterized in that the curved sections have approximately in their middle a Mindestanstand to the opposite longitudinal side (22).
    [16]
    16. Light guide unit according to one of claims 12 to 15, characterized in that in the two laterally outer regions of the element (20), the projecting portions (21 ') have the greatest distance from the opposite longitudinal side (22), and that from both sides as it progresses along the longitudinal side in the direction of the center of the element (20), the distances of the projecting portions (21 ') to the opposite longitudinal side (22) decrease.
    [17]
    17. Light guide unit according to one of claims 12 to 16, characterized in that the at least one holding opening, e.g. Retaining slot (23) or preferably the two holding openings or retaining slots (23) for the at least one divider, preferably for two separating webs (7, 8) in the region of the protruding portions (21 ') are arranged, preferably as a slot-shaped, starting from the protruding portions (21 ') are formed normal to the longitudinal sides (21, 22) in the element (20) extending into depressions.
    [18]
    18. Light guide unit according to one of claims 12 to 17, characterized in that the projecting portions (21 ') opposite longitudinal side (22) is formed continuously straight.
    [19]
    19. Light guide unit according to one of claims 8 to 18, characterized in that the element (20) is a sheet metal element.
    [20]
    20. Light guide unit according to one of claims 8 to 19, characterized in that the element (20) has a continuous thickness, preferably of about 0.1 mm.
    [21]
    21. Light guide unit according to one of claims 8 to 20, characterized in that the element (20) at least, preferably only in the region of the partitions (21 ') between the vertical light guides (30'), preferably in the region of Lichtauskoppel-surfaces (30a ), to a defined thickness, preferably made a thickness of about 0.1 mm, preferably embossed.
    [22]
    22. Light guide unit according to one of claims 8 to 21, characterized in that the element (20) is punched in its pre-bending mold.
    [23]
    23. Light guide unit according to one of claims 8 to 22, characterized in that the light guide body (6) or the element (20), preferably the sheet-metal element light-reflecting, is preferably formed high gloss. 22/28 -22- PI2886
    [24]
    24. Light guide unit according to claim 23, characterized in that the element (20), preferably the sheet metal element is reflective on both sides, in particular high gloss.
    [25]
    25. Light guide unit according to one of claims 5 to 24, characterized in that the at least one separating web (7, 8), light-reflecting, preferably high-gloss, is preferably formed on both sides light reflecting, in particular high gloss.
    [26]
    26. Light guide unit according to one of claims 1 to 25, characterized in that the receptacle (5) is formed from a plastic.
    [27]
    27 light guide unit according to one of claims 1 to 26, characterized in that the receptacle (5) in its receiving opening (5a) at least in the upper and / or lower region light reflecting, in particular high-gloss, preferably with a light-reflecting, in particular high-gloss layer coated, about steamed.
    [28]
    28 light guide unit according to one of claims 1 to 27, characterized in that the at least one light guide body light reflecting, especially high gloss is painted.
    [29]
    29 lighting unit (1) for a vehicle headlamp with at least one light guide unit (3) according to one of the claims 1 to 28.
    [30]
    30. A vehicle headlamp with at least one lighting unit according to claim 29 23/28
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    同族专利:
    公开号 | 公开日
    EP2935983A1|2015-10-28|
    BR112015014001A2|2017-07-11|
    JP6055931B2|2016-12-27|
    EP2935983B1|2019-09-04|
    CN104884860B|2018-05-11|
    AT513816B1|2015-11-15|
    WO2014094018A1|2014-06-26|
    US9816678B2|2017-11-14|
    CN104884860A|2015-09-02|
    US20150323146A1|2015-11-12|
    MX2015008060A|2015-10-30|
    MX342199B|2016-09-20|
    JP2016500466A|2016-01-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20060067077A1|2004-07-29|2006-03-30|Princeton Tectonics, Inc.|Portable light|
    WO2010106096A1|2009-03-17|2010-09-23|Thorn Europhane S.A.|Lighting unit and luminaire for road and/or street lighting|
    US20110249434A1|2010-04-12|2011-10-13|Ansaldo Sts Usa, Inc.|Light assembly|DE102019118968A1|2019-07-12|2021-01-14|HELLA GmbH & Co. KGaA|Projection headlights for vehicles|FR2048179A5|1969-06-03|1971-03-19|Ducellier & Cie|
    JPS58130292U|1982-02-27|1983-09-02|
    US5404282A|1993-09-17|1995-04-04|Hewlett-Packard Company|Multiple light emitting diode module|
    JPH10106501A|1996-09-27|1998-04-24|Toshiba Lighting & Technol Corp|Fluorescent lamp for display|
    JP2000123610A|1998-10-09|2000-04-28|Ichikoh Ind Ltd|Lamp for vehicle having led as light source|
    AU2003277206A1|2002-10-01|2004-04-23|Timothy Dipenti|Light emitting diode headlamp and headlamp assembly|
    US20040114392A1|2002-12-12|2004-06-17|Wen-Jui Hou|Effective LED vehicle lamp|
    US7329887B2|2003-12-02|2008-02-12|3M Innovative Properties Company|Solid state light device|
    AT500893B1|2004-10-14|2006-11-15|Zizala Lichtsysteme Gmbh|VEHICLE HEADLIGHTS|
    US7534000B1|2005-09-30|2009-05-19|Yazaki North America, Inc.|Incorporation of telltale warning indicators into driver information center|
    US7896514B2|2006-07-25|2011-03-01|Showa Denko K.K.|Light emitting device and display device using same|
    US7717597B2|2007-04-16|2010-05-18|Magna International Inc.|Semiconductor light engine using polymer light pipes and lighting systems constructed with the light engine|
    US7914162B1|2007-08-23|2011-03-29|Grand General Accessories Manufacturing|LED light assembly having heating board|
    JP5069985B2|2007-09-13|2012-11-07|株式会社小糸製作所|Vehicle headlamp lamp unit and vehicle headlamp|
    US7686470B2|2007-12-31|2010-03-30|Valens Company Limited|Ceiling light fixture adaptable to various lamp assemblies|
    WO2009111494A1|2008-03-03|2009-09-11|Abl Ip Holding, Llc|Optical system and method for managing brightness contrasts between high brightness light sources and surrounding surfaces|
    TWI426210B|2008-04-18|2014-02-11|Delta Electronics Inc|Illuminant device and manufacturing method thereof|
    US7837362B2|2008-09-30|2010-11-23|Fu Zhun Precision Industry Co., Ltd.|LED lamp with an improved sealed structure|
    AT508604B1|2009-07-31|2012-07-15|Zizala Lichtsysteme Gmbh|LED MOTOR VEHICLE HEADLIGHT FOR GENERATING A DYNAMIC LIGHT DISTRIBUTION|
    JP5360994B2|2009-11-10|2013-12-04|パナソニック株式会社|lighting equipment|
    EP2386792B1|2010-05-12|2013-09-11|Zizala Lichtsysteme GmbH|LED light module|
    JP2012009154A|2010-06-22|2012-01-12|Seiko Epson Corp|Lighting system and display device|
    AT510454B1|2010-10-14|2013-04-15|Zizala Lichtsysteme Gmbh|LED LIGHT VEHICLE|
    TWI465808B|2010-11-25|2014-12-21|Ｌｇ伊諾特股份有限公司|Backlight unit and display apparatus using the same|
    AT510930B1|2010-12-15|2013-05-15|Zizala Lichtsysteme Gmbh|LED LIGHT MODULE|
    AT510931B1|2010-12-22|2013-09-15|Zizala Lichtsysteme Gmbh|VEHICLE HEADLIGHTS WITH LED LIGHT MODULE|
    AT510437B1|2011-02-16|2012-04-15|Zizala Lichtsysteme Gmbh|LED LIGHT MODULE AND VEHICLE HEADLIGHTS|
    JP5695448B2|2011-03-03|2015-04-08|スタンレー電気株式会社|Vehicle lighting|
    AT511499A1|2011-05-30|2012-12-15|Zizala Lichtsysteme Gmbh|VEHICLE HEADLAMP WITH LED LIGHT MODULES FOR GENERATING A MAIN LIGHT DISTRIBUTION AND AN ADDITIONAL LIGHT DISTRIBUTION|
    AT511761B1|2011-08-08|2014-02-15|Zizala Lichtsysteme Gmbh|LED LIGHT SOURCE MODULE FOR A VEHICLE HEADLAMP AND VEHICLE HEADLAMP AND VEHICLE LIGHT SYSTEM|
    AT511760B1|2011-08-08|2013-12-15|Zizala Lichtsysteme Gmbh|LED LIGHT SOURCE MODULE FOR A LED MOTOR VEHICLE HEADLIGHT AND LED MOTOR VEHICLE HEADLAMP AND HEADLAMP SYSTEM|
    DE102011054234B4|2011-10-06|2020-03-12|HELLA GmbH & Co. KGaA|Lighting device|
    DE102011054230A1|2011-10-06|2013-04-11|Hella Kgaa Hueck & Co.|Lighting device for vehicles|
    DE102011054232A1|2011-10-06|2013-04-11|Hella Kgaa Hueck & Co.|lighting device|
    AT512056B1|2011-11-08|2013-05-15|Zizala Lichtsysteme Gmbh|LIGHTING ELEMENT AND LIGHT UNIT|
    AT512246B1|2011-11-22|2014-02-15|Zizala Lichtsysteme Gmbh|LED PROJECTION MODULE AND HEADLIGHTS WITH MODULE|
    EP2797772B1|2011-12-29|2020-12-02|ZKW Group GmbH|Safety device for headlights with laser light sources and method for shutting down laser light sources in case of safety-critical conditions|
    AT512544B1|2012-02-16|2014-02-15|Zizala Lichtsysteme Gmbh|METHOD FOR GENERATING A CONTINUOUS EFFECT ON A LIGHTING STRUCTURE AND LIGHTING STRUCTURE|
    AT512603B1|2012-02-24|2014-06-15|Zizala Lichtsysteme Gmbh|LED control for running light indicators|
    AT512569B1|2012-03-07|2014-09-15|Zizala Lichtsysteme Gmbh|Lighting device for a motor vehicle|
    AT512588B1|2012-03-12|2014-12-15|Zizala Lichtsysteme Gmbh|Light source module with laser light source and vehicle headlights|
    AT512590B1|2012-03-12|2013-11-15|Zizala Lichtsysteme Gmbh|Light guide element for a laser vehicle headlight and vehicle headlights|
    AT512587B1|2012-03-12|2013-11-15|Zizala Lichtsysteme Gmbh|Optical element for a laser vehicle headlight and light source module and vehicle headlight|
    AT512591B1|2012-03-12|2014-06-15|Zizala Lichtsysteme Gmbh|Vehicle headlight with laser light source|
    AT512589B1|2012-03-12|2014-06-15|Zizala Lichtsysteme Gmbh|Light guide element for a laser vehicle headlight and vehicle headlights|
    AT512711B1|2012-03-21|2014-08-15|Zizala Lichtsysteme Gmbh|Light module for a motor vehicle and motor vehicle headlights|
    AT512865B1|2012-05-09|2014-12-15|Zizala Lichtsysteme Gmbh|Lighting device for a motor vehicle headlight and light module and motor vehicle headlight with lighting device|
    US8596844B1|2012-06-25|2013-12-03|Grang Fair Industrial Co., Ltd.|Vehicle light|
    AT513206B1|2012-07-18|2015-04-15|Zizala Lichtsysteme Gmbh|Lighting unit for a headlight|
    CN102798043A|2012-08-02|2012-11-28|青岛海信电器股份有限公司|Direct-lighting type backlight module|
    US20140063832A1|2012-09-06|2014-03-06|Yung-Fa Lin|Led lamp for car use|
    US8967823B2|2012-09-13|2015-03-03|Rpg Diffusor Systems, Inc.|Combination light diffuser and acoustical treatment and listening room including such fixtures|
    AT513738B1|2012-12-20|2014-07-15|Zizala Lichtsysteme Gmbh|Lighting unit for a headlight|DE102014117316A1|2014-11-26|2016-06-02|Hella Kgaa Hueck & Co.|Lighting device for vehicles|
    AT517523B1|2015-07-28|2017-09-15|Zkw Group Gmbh|Lighting device for a motor vehicle headlight|
    AT517697B1|2015-09-30|2017-04-15|Zkw Group Gmbh|Lighting device for a motor vehicle headlight|
    AT518090B1|2015-12-21|2017-10-15|Zkw Group Gmbh|Headlight for a vehicle|
    AT518552B1|2016-08-19|2017-11-15|Zkw Group Gmbh|Lighting unit for a motor vehicle headlight for generating at least two light distributions|
    DE102017214636A1|2017-08-22|2019-02-28|Osram Gmbh|LIGHTING SYSTEM, HEADLIGHTS AND METHOD FOR MANUFACTURING A LIGHTING SYSTEM|
    EP3578874A1|2018-06-04|2019-12-11|ZKW Group GmbH|Lighting device for a motor vehicle headlamp|
    KR102246508B1|2019-02-28|2021-04-30|한국광기술원|Horizontal arrangement type multi division-multi lighting vehicle lighting device using tir lens|
    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 |
    2018-08-15| MM01| Lapse because of not paying annual fees|Effective date: 20171220 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50609/2012A|AT513816B1|2012-12-20|2012-12-20|Light guide unit for a lighting unit of a headlamp and lighting unit and headlamp|ATA50609/2012A| AT513816B1|2012-12-20|2012-12-20|Light guide unit for a lighting unit of a headlamp and lighting unit and headlamp|
    MX2015008060A| MX342199B|2012-12-20|2013-12-05|LIGHT‑EMITTING UNIT COMPRISING A LIGHT GUIDE UNIT FOR A PROJECTOR LAMP.|
    JP2015548107A| JP6055931B2|2012-12-20|2013-12-05|Floodlight unit with light guide unit for floodlight|
    BR112015014001A| BR112015014001A2|2012-12-20|2013-12-05|light-emitting unit comprising a light guide unit for a headlamp|
    PCT/AT2013/050236| WO2014094018A1|2012-12-20|2013-12-05|Light‑emitting unit comprising a light guide unit for a projector lamp|
    EP13817640.9A| EP2935983B1|2012-12-20|2013-12-05|Light emitting unit comprising a light guide unit for a projector lamp|
    US14/652,881| US9816678B2|2012-12-20|2013-12-05|Light-emitting unit comprising a light guide unit for a projector lamp|
    CN201380067293.9A| CN104884860B|2012-12-20|2013-12-05|The lighting unit with light guidance unit for headlight|
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