• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    The invention relates to an LED projection module (1) comprising two or more LED light sources (2, 3, 4), each LED light source (2, 3, 4) each consisting of one or more light-emitting diodes, each LED light source. Light source (2, 3, 4) couples light via a respective light coupling point (21, 31, 41) into a light guide (20, 30, 40), and light from the light guides (20, 30, 40) via a light extraction point ( 22, 32, 42) of the light guide (20, 30, 40) emerges, and wherein the exiting light is projected by means of a projection lens (90) in the outer space to form at least one light distribution. According to the invention, the optical waveguides (20, 30, 40) for the individual LED light sources (2, 3, 4) lie laterally next to one another in a horizontal plane and adjoin one another directly or preferably form a common total light optical waveguide (100), so that between adjacent optical waveguides (20, 30, 40) can pass light, and wherein the individual light exit surfaces (22, 32, 42) are adjacent to each other and form a total light-light exit surface (110), and wherein in the total light-light exit surface (110), between the individual light exit surfaces (22, 32, 42) one or more depressions (201, 202) are provided, each extending over at least part of the height extent of the total light-light exit surface (110).
    公开号:AT512246A1
    申请号:T1724/2011
    申请日:2011-11-22
    公开日:2013-06-15
    发明作者:Friedrich Bauer；Andreas Moser
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    Λ
    Ρ12037 LED projection module
    The invention relates to an LED projection module, comprising two or more LED light sources, each LED LichtqueUe each consisting of one or more light emitting diodes, each LED light source couples light via a respectively associated Lichteinkoppelstelle in a light guide, and wherein light off the light guides exit via a light outcoupling point of the light guide, and wherein the exiting light is projected by means of a projection lens in the outer space to form at least one light distribution.
    Furthermore, the invention relates to a headlamp with one or more such modules.
    Such LED light source modules for generating a light distribution, for example a high beam distribution or Abblendlichverteilung are known.
    In such partial light distributions, either only a certain part of the (total) light distribution is projected onto the roadway, or part of the (total) light distribution is "hidden", so that only the part of the (total) light distribution is "hidden" remaining part of the light distribution can be seen on the roadway.
    Such partial light distributions are suitable, for example, to illuminate specific areas in a targeted manner, but preferably to mask out areas in the photograph. For example, with oncoming traffic continue to be driven with high beam, and it is only the area in which the oncoming traffic is currently, from the high beam distribution "hidden".
    By using a plurality of LED light sources which can be controlled separately, it is thus also possible to produce so-called partial light distributions, for example a partial high beam distribution. P12037
    Due to the fact that the individual LED light sources project their light onto the roadway via their own light guide (and then via a common projection lens), the problem arises that it is difficult or scarcely possible to produce a sharp (vertical) light distribution in a partial light distribution ) To create transition between the light and dark areas.
    In the case of full light distribution (total light distribution), in particular in full-field light, it is difficult to realize a good superposition of the individual partial light images. However, such a good overlay is necessary for a high maximum in the light distribution and for good homogeneity.
    It is an object to provide an improved LED projection module in which the above-mentioned problems no longer occur or are at least significantly improved.
    This object is achieved with an LED projection module mentioned in the introduction in that, according to the invention, the light guides for the individual LED light sources lie laterally next to one another in a horizontal plane and adjoin one another directly or preferably form a common total light light guide, so that light can pass between adjacent light guides, and wherein the individual light exit surfaces are adjacent to each other and form an overall light-light exit surface, and wherein in the total light-light exit surface, between the individual light exit surfaces, one or more recesses are provided, each extending at least over a part of the height extent of the total light-light exit surface.
    Due to the design of depressions in the total light exit surface, this is subdivided into several subregions. If all subregions are "activated", the entire light exit surface lights up, without the columns being visible in the light image. By means of the columns, however, the individual partial regions can be sharply delimited from one another in the light image, so that when one partial region is deactivated, no stray light from the other, luminous partial regions in the non-illuminated region of the light image exerts disturbing effects. -3- PI2037 ·· < · «·
    The depression (s) are columns in the total light exit surface, wherein these columns are preferably formed such that total reflection occurs for the light impinging there on the columns, so that no light can enter the adjacent light guide through the gaps.
    Under "common" Total light optical fiber is to be understood as meaning that basically only a single optical fiber is provided, which has several separate light guides "segments". (individual light guides), which converge in a common area. It is practically interconnected optics, which are preferably formed from one piece.
    As a rule, the total light-light exit surface lies in a plane which is normal to the optical axis of the module, that is, to the optical axis of the projection lens. The total light-emitting surface (and, of course, the individual light exit surfaces) is usually in the (vertical) plane, which contains the focal point of the projection lens and is normal to the optical axis of the lens, or in a plane which is close to the Focal point runs.
    However, it can also be provided that the (planar) total light-light exit surface extends obliquely to the optical axis, or that the total light-light exit surface in the form of a free-form surface (approximately an area adapted to the focal curve of the (projection) lens) is designed to be about the light distribution, eg a Femlichtverteilung to run better in the light image upwards.
    Ideally, the planar total light-light exit surface extends through the focal point of the projection lens, as is the case with a free-form surface with advantage.
    However, it can also be provided to specifically de-focus the light exit surface in order to control the hardness of the light-dark transition in this way; Also, the effects of chromatic aberration can be influenced in this way.
    In a specific embodiment, it is provided that a central optical fiber group is provided with at least one optical fiber, wherein further left and right of the zenbralen optical fiber group respectively a left and a right light guide group are provided, wherein the left and / or the right light guide group each comprises at least one light guide with associated LED light source.
    Each of these light guide groups, each of which forms a (partial light) light exit surface, generates its own partial light image, so that a total of three partial light images can be generated.
    It is preferably provided that the middle light guide group comprises exactly one light guide.
    Likewise, it is advantageously provided that the left and / or the right light guide group each comprise exactly one light guide.
    Furthermore, it can be provided that the light of the at least one LED light source of the central light guide of the central light guide group is directed by the central light guide, in particular by the light entrance surface of the central light guide substantially parallel to the optical axis of the module.
    Furthermore, it can be provided that the at least one LED light source of a lateral group of light guides light at an angle not equal to 0 °, directed onto the optical axis of the module, into the associated light guide.
    This has the advantage that a compact overall light exit surface is achieved with desired dimensions, but at the same time there is sufficient space for mounting the LED light sources.
    In order to obtain the desired effect of the recesses over as far as possible the entire vertical extent of the light exit surface, it is provided that a depression extends upwards between two light exit surfaces from the lower boundary surfaces of the juxtaposed optical fibers or the lower boundary surface of the total light optical fiber. P12037 «t ·· * ·
    In the above sense, it is also expedient if the depression between two light exit surfaces extends completely as far as the upper boundary surfaces of the adjacent light guides or up to the upper boundary surface of the total light waveguide.
    However, it can also be provided that the recess between two light exit surfaces does not extend completely to the upper boundary surfaces of the adjacent light guides or up to the upper boundary surface of the total light waveguide, so that in the upper region of the adjacent light guide or the total light Optical fiber results in a continuous edge. This embodiment is advantageous if, as discussed below, a dimmed light distribution, e.g. a low-beam light distribution is to be generated, wherein the upper - continuous edge of the total light guide is then used to create a (continuous) cut-off in the light image.
    Furthermore, it is expedient if a depression in a front region, i. in the region of the light exit surfaces, has a defined width, which is preferably constant over the entire height of the recess, and that the recess towards the rear, away from the light exit surfaces, tapers.
    In particular, it is favorable if the walls delimiting a depression run towards one another, and preferably run together in a sharp edge.
    In addition, it can be provided that the inner wall, i. the central light guide group facing wall of a recess is flat, preferably as a vertical plane.
    Furthermore, it can be provided that the outer wall of a recess is curved, preferably curved away from the inner wall. In general, it is preferably provided that a depression designed in this way, i. E. with regard to their shape and / or with regard to the length of their extension to the rear, is formed away from the light exit surface (s) such that light from the right / left light guide group or from the at least one right / left light guide is not PI2037
    into the left / right light guide group or the at least one left / right light guide can enter.
    Light from the right-hand light guide is totally reflected at the recess / gap between the left and middle light guides (on the straight wall), thus exiting via the middle light guide (or the middle light guide group). The same applies to light from the left light guide, this is reflected at the recess / column between the right and the middle light guide toral and exits via the middle light guide from the module.
    In this way, a sharp vertical bright and dark boundary can be created in the light image.
    The depth of the recess or recess is chosen such that light from a lateral LED light source can not get into the outer opposite light guide.
    Furthermore, it is expedient if the light coupling point for the middle optical waveguide is advanced and configured far enough in the direction of the light exit surface that light from a lateral LED light source can not pass the depression.
    Specifically, it can be provided that the overall light guide is formed on its rear side facing away from the light outcoupling surfaces in such a way that light beams from an external light source can not escape through a light outcoupling surface assigned to another external LED light source, wherein rear recesses are preferably provided which light will be blocked by the external LED light sources which would enter the light guide associated with another external LED light source.
    For example, the total light guide in the middle in such a way forward, in the direction of the light exit surfaces, preferred that light, which could pass the front recesses in an outer light guide, this light from an outer, 7 - · P12037 ···· • · ≫ · This light guide unassigned light source comes, blocked and possibly reflected.
    In one variant, this preferred region is formed in the middle of the total light guide as Lichteinkoppelstelle for a central LED light source
    The gap results in the superposition of all light components a high beam with inhomogeneity in the gap region, which is undesirable. By using a curved wall, this can be adapted to the optical conditions, so that the inhomogeneities can be prevented or at least mitigated.
    In a further variant it can be provided that a recess is designed in such a way, i. in terms of their shape and / or in terms of the length of their Ausreckimg to the rear, directed away from the light exit surface (s), is formed such that light from the middle light guide group or from the at least one middle light guide not in the left or right light guide group or the at least one left or at least one right light guide can enter.
    In particular, care must be taken in this case that the Lichteinkoppelstelle for the central LED light source is designed accordingly, for example, is correspondingly curved so that in conjunction with the or the wells no light rays can enter the side light guides,
    In this case, the middle light guide group can be used for the partial light distribution, the middle light guide group or the middle light guide can be turned on when passing oncoming traffic, without dazzling.
    In a specific embodiment, it is provided that a Femlichtverteilung or a Teilfernlichtverteilung can be generated by means of the light guide or by means of the total light waveguide. -8 P12037 > ··· * ·
    For this purpose, the individual LED light sources can be controlled independently of one another and correspondingly switched on and off or optionally also dimmable. It can also be advantageous that each LED of an LED light source is also separately controllable.
    In order, as already mentioned above, to also be able to produce a dimmed light distribution, for example a low beam distribution, with a module according to the invention, it can further be provided that at least one LED light source is arranged above the light guide or the total light waveguide. which light on at least one optic, eg at least one reflector is emitted, and that of the at least one optical system, e.g. is emitted from the at least one reflector emitted light in a lower region of the projection lens, and wherein the upper edge, which limits the total light-light exit surface, is displayed as a light-dark boundary in the light image.
    With the optics - such as in the form of reflectors, lenses, or preferably primary optics, which primary optics are designed as optical fibers (such as the shape of a reflector or as shown in AT504505), or the like. a low-beam light distribution is imaged in the focal plane of an associated lens, which is then imaged by the lens in front of the vehicle.
    For example, two LED light sources, each with an associated reflector are provided.
    It is advantageous if the upper side and / or the lower side of the optical waveguides or of the total light optical waveguide is at least partially reflective in design.
    For example, top and / or bottom are coated, e.g. coated with a reflective layer, such as vapor-deposited.
    The bottom / top may be e.g. be reflective in a rear area and formed absorbent at the edge to obtain a sharp HD line. PI2037 PI2037 t «
    • # · · i ·· ♦ «· · ·« «· · · · · ♦
    In this way, light losses can be avoided or, if two different light distributions are generated, can be avoided that they influence each other negatively by passing light.
    With regard to its course, the edge is then preferably designed to form a light-dark boundary for a low-beam light distribution, that is to say it has corresponding sections in order to produce a low-beam distribution compliant with the law.
    As already mentioned, the invention also relates to a headlamp with one or preferably several of the modules described above.
    Preferably, it is provided in such a headlight that at least one of the modules, preferably all modules are pivotable about a substantially vertical axis.
    If the entire module is pivotable, then the pivot axis will ideally pass through the center of gravity of the module. So the least amount of effort is necessary and vibrations or the like have little effect.
    By means of one or more movable modules, partial areas in the photograph can not only be statically "cut out". but this cut-out portion can also be pivoted about the vertical axis by pivoting the module (with the entire light image produced by the respective pivoted module). As a result, a tracking of the cut-out light section according to the movement of oncoming traffic or of preceding vehicles is possible.
    However, it can also be provided that no pivoting takes place or is provided in a less expensive embodiment, whereby nevertheless an automatic high beam can be reactivated much earlier than without the possibility of static suppression of partial areas. PI2037 PI2037
    ···· * ♦
    ♦ · ♦ t * · ♦ ·
    Instead of pivoting the entire module can also be provided that the projection lens of one or more modules is pivotable about a respective vertical axis.
    Optically, it is optimal if the axis runs near the focal line of the projection lens, preferably through the focal point of the projection lens.
    In the following the invention is discussed in more detail with reference to the drawing. In this shows
    1 is a schematic view of an LED light module from the front with dashed lens shown,
    2 shows the module of Figure 1 in a view from above,
    3 shows the module of Figure 1 in a side view,
    4 shows a section along the line A-A of Figure 2,
    5 shows a section along the line B-B of Figure 1,
    5a is a detail view of the light guide in the region of a depression,
    6 shows the light distribution generated by the two outer optical fibers,
    FIG. 7 shows the light distribution generated with the left-hand part viewed in the light exit direction.
    Optical fiber,
    FIG. 8 shows the light distribution with the right-hand part in the light exit direction · light guide, FIG.
    FIG. 9 shows the light distribution generated with the middle part seen in the light exit direction. P12037 P12037 »· ·» ♦ ·
    * * · · · · · · · · * * »4 * • *« · · ·
    Optical fiber,
    10 shows the light distribution produced by a headlight (dipped beam + partial high beam), FIG. 11 shows the light distribution in high beam (full-beam), and
    FIG. 12 shows by way of example an adaptive main beam produced with two headlamps according to the invention.
    FIGS. 1-5 show an LED projection module 1 according to the invention. The module 1 consists of a total light optical fiber 100, which will also be referred to below as a light guide body 100. In this light guide 100 is of 3 LED light sources 2, 3, 4 (Figure 2), each consisting of one or more light emitting diodes, via corresponding Lichteinkoppelstellen 21, 31, 41 (Figure 5) light coupled into the light guide 100 at the Lichteinkoppelstellen For example, these are light-collimating coupling points, ie an opening in which the respective LED light source sits and is enclosed by a spherical shell in order to collimate the light. The light emerges from the light guide body 100 via the light extraction point 22, 32, 42, and the emergent light is projected by means of a projection lens 90 into the outside space to form a light distribution, in the specific case to form a high beam or split beam light distribution.
    By means of these LED light sources 2, 3, 4, a Femlichtverteilung or a Teilfernlichtverteilung is generated. For this purpose, the individual LED light sources can be controlled independently of one another and correspondingly switched on and off or optionally also dimmable. It can also be advantageous that each LED of an LED light source is also separately controllable.
    The Lichtauskoppelstelle 22, 33, 42 are each formed on a light guide 20, 30, 40, these three light guides together form the light guide 100. In the illustrated preferred embodiment of the invention, the three light guides 20,30,40 are formed in one piece.
    The light guides 20, 30, 40 for the individual LED light sources 2, 3, 4 are laterally adjacent to each other in a horizontal, adjacent to each other directly and, as already mentioned above, preferably a one-piece total light optical fiber 100, so that between adjacent light guides 20th , 30,40 light can pass.
    The individual light exit surfaces 22, 32, 42 lie next to one another and form a total light light exit surface 110. In the total light light exit surface 110, between the individual light exit surfaces 22, 32, 42, recesses 201, 202 are provided, each extending over at least part of the height extension (FIG. ie in the vertical direction) of the total light-light exit surface 110 extend.
    The light emitted by the LED light source 4 is substantially parallel to the optical from the light entrance surface 41 of the central light guide 40 in the example shown
    Axis of the module 1 directed.
    The at least one LED light source 2, 3 of the respective lateral light guide 20, 30 is in the example shown at an angle not equal to 0 °, directed to the optical axis x of the module, and so feeds light into the associated light guide 20,30 (Figure 2).
    This has the advantage that a compact total light-emitting surface 100 is achieved with desired dimensions, but at the same time there is sufficient space for mounting the LED light sources.
    The LED light sources are arranged on a heat sink 200 (FIG. 2). Likewise, the LED light sources 5, 6, which are discussed in greater detail below, which are used to produce a low-beam light distribution, are mounted on this heat sink 200.
    An aspect of the invention is, in addition to a total light distribution (such as a Fem-light distribution) in which all three LED light sources 2, 3, 4 are turned on, also partial light distribution, in the present case a partial high-beam light distribution generate, for example, in which only one or not all LED light sources are active. In order to obtain a vertically sharply delimited partial field light without stray light from the other active LED light source (s), the recesses 201, 202 are provided. 13-: P12037
    In order to obtain the desired effect of the recesses over as far as possible the entire vertical extent of the light exit surface, it is provided that a recess 201, 202 between two light exit surfaces 32, 42; 22,42 extends directly from the lower boundary surface 130 of the total light optical fiber 100 upwards away.
    In the variant shown, the recess 201, 202 extends between two light exit surfaces 32, 42; 22, 42 is not completely up to the upper boundary surface 120 of the total light waveguide 100, so that in the upper, front region of the total light waveguide 100 results in a continuous edge 121. This embodiment is advantageous if, as discussed below, a dimmed light distribution, e.g. a low-beam light distribution is to be generated, wherein the upper-through-edge 121 of the total light guide is then used to generate a (continuous) light-durometer boundary in the light image of the low beam.
    Furthermore, it is expedient if the depressions 201, 202 in a front region, i. in the region of the light exit surfaces 22, 32, 42; 110, have a defined width, which is preferably constant over the entire height of the recess 201, 202. Towards the rear, from the light exit surfaces 22, 32, 42; 110 directed away, the recesses 201,202 are tapered.
    As can be clearly seen in particular in FIG. 5a, it is favorable if the walls 201 ', 201 "delimiting the depressions 201, 202; 202 ', 202 " towards each other, and preferably each in a sharp edge 201 " ', 202 " run together.
    The inner walls 201 ", 202 ", i. the walls of a recess 201, 202 facing the central optical fiber group are planar, preferably as a vertical plane. In principle, it is also conceivable that these walls are curved. Condition for this side surface is that it is designed to be totally reflective for beams of the opposite LED (2 or 3).
    The outer walls 201 ', 202' of the recesses 201, 202 are curved, preferably from the inner wall 201 ", 202 " curved away. -14-: P12037
    In general, it is provided that a depression 201, 202 is designed in such a way, i. with respect to their shape and / or with respect to the length of their extension to the rear, away from the total light exit surface is designed such that light from the right / left light guide 20, 30 can not enter the left / right light guide 30, 20.
    FIG. 5 shows an excellent light beam S from the right-hand light guide 30 from the LED light source 3, which would enter the left-hand light guide 20 as an S 'without recess 202 and exit via the light exit surface 22. In the case of partial light (i.e., LED light source 2 switched off and LED light source 4 possibly switched off), light would thus exit via the light exit surface 22 and disturb or destroy the partial light.
    Thus, however, light from the right light guide at the recess / column 202 is totally reflected between the left and middle light guides (on the straight wall 202 "), thus exiting via the middle light guide (light beam S "). The same applies to light from the left light guide, this is reflected at the recess / column between the right and the middle light guide toral and exits via the middle light guide from the module.
    In this way, a sharp vertical cut-off can be generated in the light image when the left / right and possibly the middle LED light source is turned off.
    The depth of the recess or recess is chosen such that light from a lateral LED light source can not get into the outer opposite light guide.
    For this purpose, it is furthermore expedient if the light coupling point 41 for the middle light guide 40 is advanced and designed far enough in the direction of the light exit surface that light from a lateral LED light source can not pass the depression. Preferably, the Lichteinkoppelstelle 41 is curved, for example, curved by the LED light source 4 path, formed so that a recess 70 results on the rear side of the total light guide 100. In the example shown, the light entry surface 41 even acts as a lens which directs the light of the LED light source in parallel. P12037 • ft •••••••••••••••••••••••••••••••••••• •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••
    The column results in the superimposition of all light components, a high beam with inhomogeneity in the gap region, which is undesirable. By using a curved wall 201 ', 202', this can be adapted accordingly to the optical conditions, so that the inhomogeneities can be avoided or at least mitigated.
    The middle LED light source 4 is there to produce a maximum in the light image. This is the case presented in the figure. For this purpose, the light coupling point of the LED light source 4 is designed such that the rays are directed substantially parallel and produce a maximum light in the middle of the light distribution (see Figure 9).
    But this does not necessarily have to be the case. Of course, it is also conceivable that the coupling-in point is designed such that only a part of the emitted light generates a maximum, preferably the middle high-intensity part of the light, and lateral regions of the emitted light contribute to the width. This case is not shown in the figures.
    Fig. 5 has been adapted for the first cited case, the beam path of the LED light source 4 is thus corrected something here.
    In another variant, not shown, it may be provided that the depressions are designed in this way, i. in terms of their shape and / or in terms of the length of their extension to the rear, directed away from the light exit surface (s), are formed such that light from the central optical fiber group or from the at least one middle optical fiber 40 is not in the left or . Right light guide group or the at least one left or at least one right light guide 20,30 can occur.
    In particular, care must be taken in this case that the Lichteinkoppelstelle for the central LED light source is designed accordingly, for example, is curved accordingly, so that in conjunction with the or the wells no light rays can enter the lateral light guide.
    In this case, the middle light guide group can be used for the partial light distribution, the middle light guide group or the middle light guide can be turned on when passing oncoming traffic, without dazzling.
    In order, as already mentioned above, to also be able to produce a dimmed light distribution, for example a dipped-beam distribution, with a module according to the invention, it can further be provided that at least one, preferably two or more LED light sources 5 are located above the total light waveguide 100 , 6 are arranged, which emit light on at least one, preferably two or reflectors 7, 8 or optics. The light emitted by the reflectors 7,8 light is emitted into a lower portion of the projection lens 90 (Figure 4), wherein the upper edge 121, which limits the total light-light exit surface 110 is mapped as a light-dark boundary in the light image of the low beam.
    Reflectors 7, 8 are used in the embodiment shown in the figures, but basically any other suitable (primary) optics can be used instead of a reflector.
    It is advantageous if the upper side 120 and / or the lower side 130 of the total light optical waveguide 100 is or are designed to be reflective in terms of light.
    For example, top and / or bottom are coated, e.g. coated with a reflective layer, such as vapor-deposited.
    In this way, light losses can be avoided or, if two different light distributions are generated, can be avoided that they influence each other negatively by passing light.
    With regard to its course, the edge 121 is then preferably designed to form a light-dark boundary for a low-beam light distribution, ie has corresponding sections in order to produce a law-compliant low-beam light distribution (this is indicated by dashed lines in FIGS. 10-12) (FIG. ,
    A vehicle headlamp consists of one or preferably several of the modules described above.
    Preferably, it is provided in such a headlight that at least one of the modules, preferably all modules are pivotable about a substantially vertical axis.
    By means of one or more movable modules, partial areas in the photograph can not only be statically "cut out". but this cut-out portion can also be pivoted about the vertical axis by pivoting the module (with the entire light image produced by the respective pivoted module). As a result, a tracking of the cut-out light section according to the movement of oncoming traffic or of preceding vehicles is possible.
    However, it can also be provided that, in a less expensive embodiment, no pivoting takes place or is provided, whereby nevertheless an automatic high beam can be reactivated much earlier than without the possibility of static suppression of partial areas.
    Instead of pivoting the entire module can also be provided that the projection lens of one or more modules is pivotable about a respective vertical axis.
    Optically, it is optimal when the pivot axis passes through the focal point of the projection lens.
    FIG. 6 shows a combined light image from the left and right light guides 20, 30 of an LED light source module. This can already be sufficient to produce a law-compliant high beam, the required maximum in the middle is achieved by the superimposition of the images in this area. In the minimal configuration, the module therefore only includes one left and one right LED light source.
    Optionally, an increase in the maximum, as shown in the figures, can be achieved by a third LED light source 4 in the middle of the overall light guide. PI2037
    FIG. 7 shows a partial light image produced with the left-hand light guide of an LED light source module according to the invention, FIG. 8 shows a partial light image generated with the right-hand light guide, and FIG. 9 shows a light image generated with the middle light guide.
    FIG. 10 shows a light distribution produced with an entire headlight. Specifically, while Figure 10 shows a low beam distribution (schematically represents with dashed lines), generated with the two LED light sources 5, 6 of the individual modules of the headlamp, and superimposed a partial high beam generated with the right light guides of the corresponding LED light source modules.
    11 shows a total Femlichtverteilung produced by 2 headlamps together with a low beam distribution, ie a light distribution in which all LED light sources 2,3, 5, 6 and optionally also the LED light source 4 are in operation.
    Finally, FIG. 12 shows an adaptive high beam, which is produced with two headlamps according to the invention, wherein both headlamps have an identical construction with respect to the modules 1, as shown in FIGS. 1-5.
    The light distribution shown in FIG. 12 results from the fact that the LED light source 3 (and optionally LED light source 4) are activated in the left-hand headlamp, and the modules or their lenses are pivoted to the left.
    Basically, each headlight consists of at least one, usually several modules. In this case, all modules can be rigid, or only one or some modules can be pivoted (or their lenses), other modules can be rigidly arranged; Preferably, all modules (lenses) are pivotable.
    If the dipped-beam units are separated from the Femlichteinheiten (unlike in the figures), the dipped beam can remain undisturbed and only the high beam (partial-femt) follow the oncoming traffic or be adapted to this. However, such a solution is more expensive than that shown in the figures. P12037
    In the right-hand headlamps, the LED light sources 2 (ie the left-hand side) of the modules (and optionally the LED light sources 4, ie the middle ones) are active, in which case the module or lens may possibly be carried along / pivoted slightly to the left or remains rigid.
    If several vehicles oppose the oncoming traffic, it may be necessary to hide the entire light distribution to the left from and in oncoming traffic; in this case, the left headlight would have the left LED light sources 2 (and optionally the middle LED light sources 4) active, their light image optionally entrained by Verschwervken, the right LED headlights are also the left LED light sources 2 (and optionally the middle LED light sources 4) active.
    Basically, by activating any of the different partial light distribution generated by the two headlamps, and optionally by pivoting the images of the individual modules optimally to the respective traffic situation (oncoming traffic and / or traffic on the own street side, number of vehicles, position of oncoming traffic,. ..) are reacted.
    When using several modules as already mentioned above, e.g. one (or the lens) and one or more further modules are static. The right module remains so fixed (or is fixed) and lit (in right-hand traffic) the right edge of the road, the left module pivots with oncoming traffic.
    Vienna, the '22. Nev. 2011
    权利要求:
    Claims (24)
    [1]
    P12037 1 -: 20: Claims 1. An LED projection module (1) comprising two or more LED light sources (2, 3, 4), each LED light source (2, 3, 4) each consisting of one or more light emitting diodes wherein each LED light source (2, 3, 4) couples light via an associated each Lichteinkoppelstelle (21, 31, 41) in a light guide (20,30, 40), and wherein light from the optical fibers (20, 30 , 40) via a light extraction point (22, 32, 42) of the light guide (20, 30, 40) emerges, and wherein the exiting light is projected by means of a projection lens (90) in the outer space to form at least one light distribution, characterized the optical waveguides (20, 30, 40) for the individual LED light sources (2, 3, 4) lie laterally next to each other in a horizontal plane and adjoin one another directly or preferably form a common total light optical waveguide (100), so that between adjacent optical waveguides ( 20, 30, 40) light can pass, and wherein the individual light exit surfaces (22, 32, 42) lie next to each other and form a total light-light exit surface (110), and wherein in the total light-light exit surface (110), between the individual light exit surfaces (22, 32, 42) one or more depressions ( 201, 202) are provided which each extend over at least part of the height extent of the total light-light exit surface (110).
    [2]
    2. Module according to claim 1, characterized in that a central light guide group with at least one light guide (40) is provided, as well as left and right of the central light guide group, a left and a right light guide group are provided, wherein the left and / or the right Light guide group in each case comprises at least one light guide (20, 30) with associated LED light source (2,3).
    [3]
    3. Module according to claim 2, characterized in that the central light guide group comprises exactly one light guide (40).
    [4]
    4. Module according to claim 2 or 3, characterized in that the left and / or the right light guide group in each case exactly one light guide (20,30). P12037 P12037 • · «·

    * 21 *
    [5]
    5. Module according to one of claims 1 to 4, characterized in that the light of the at least one LED light source (4) of the central light guide (40) of the central optical fiber group of the central light guide (40), in particular of the light entry surface (41). the central optical fiber (40) is directed substantially parallel to the optical axis of the module.
    [6]
    6. Module according to one of claims 2 to 5, characterized in that the at least one LED light source (2, 3) of a lateral light guide group light at an angle not equal to 0 °, executed on the optical axis of the module, in the associated light guide ( 20,30) feeds.
    [7]
    7. Module according to one of claims 1 to 6, characterized in that a recess (201, 202) between two Uchtaustrittsflächen (32, 42, 22, 42) of the lower boundary surfaces of the juxtaposed optical fibers (20, 30, 40) or the lower boundary surface (130) of the total light waveguide (100) extends upward away.
    [8]
    8. Module according to one of claims 1 to 7, characterized in that the recess (201, 202) between two light exit surfaces (32, 42, 22, 42) not completely up to the upper boundary surfaces of the juxtaposed light guide (20, 30 , 40) or up to the upper boundary surface (120) of the total light waveguide (100), so that in the upper region of the juxtaposed light guide or the total light waveguide (100) results in a continuous edge (121), or the depression (201, 202) extends completely between two light exit surfaces (32, 42, 22, 42) until the upper boundary surfaces of the adjoining light guides (20, 30, 40) or up to the upper boundary surface (120) of the total light Optical fiber (100) extends.
    [9]
    9. Module according to one of claims 1 to 8, characterized in that a recess (201, 202) in a front region, i. in the region of the light exit surfaces (22, 32, 42, 110), has a defined width, which is preferably constant over the entire height of the depression (201, 202), and in that the depression (201, 202) points towards the rear, from the light exit surfaces (22,32,42; 110) directed away, tapered.
    [10]
    Module according to claim 1, characterized in that the walls (201 ', 201 ", 202", 202 ") delimiting a depression (201, 202) converge, and preferably in a pointed edge (201", 202 '") run together.
    [11]
    Module according to claim 10, characterized in that the inner wall (201 ", 202 "), i. the central light guide group facing wall of a recess (201, 202) is flat, preferably as a vertical plane.
    [12]
    Module according to claim 10 or 11, characterized in that the outer wall (201 ', 202') of a recess (201, 202) is curved, preferably curved away from the inner wall (201 ", 202").
    [13]
    Module according to one of Claims 1 to 12, characterized in that a recess (201, 202) is designed in such a way, i. with respect to their shape and / or with respect to the length of their extension to the rear, is formed away from the light exit surface (s) in such a way that light from the right / left light guide group or from the at least one right / left light guide (20, 30 ) can not enter the left / right light guide group or the at least one left / right light guide (30,20).
    [14]
    14. Module according to one of claims 1 to 13, characterized in that a recess (201, 202) designed in such a way, i. with respect to their shape and / or with regard to the length of their extension to the rear, is formed away from the light exit surface (s) in such a way that light from the middle light guide group or from the at least one middle light guide (40) does not enter the left or right light path . Right light guide group or the at least one left or at least one right light guide (20,30) can occur.
    [15]
    15. Module according to one of claims 1 to 14, characterized in that the total light guide (100) on its rear side remote from the light output surfaces (22, 32, 42) side, is formed such that light rays from an external light source ( 2, 3) can not escape through a light outcoupling surface (32, 22) associated with another outer LED light source (3, 2), preferably with rear recesses (70) which receive light from the outer LED light sources (2, 3) ), which would reach the light guide (30, 20) associated with another external LED light source (3, 2), are blocked off. P12037 P12037 * · · * ·

    : 2¾
    [16]
    16. Module according to one of claims 1 to 15, characterized in that by means of the light guide or by means of the total light optical fiber, a Femlichtverteilung or a Teilfemlichtverteilung can be generated,
    [17]
    17. Module according to one of claims 1 to 16, characterized in that above the light guides (20, 30, 40) and the total light waveguide (100) at least one LED light source (5, 6) is arranged, which light at least one look, eg a reflector (7, 8) is emitted, and that of the at least one optic, e.g. the at least one reflector (7, 8) emitted light in a lower portion of the projection lens (90) is emitted, and wherein the upper edge (121), which limits the total light-light exit surface (110), as a cut-off in the light image is shown.
    [18]
    18. Module according to claim 17, characterized in that two LED light sources (5, 6) each having an associated reflector (7, 8) are provided.
    [19]
    19. The module according to claim 17, wherein the upper side and / or the lower side of the light guide or of the total light waveguide is / are at least partially reflective.
    [20]
    20. Module according to one of claims 17 to 19, characterized in that the edge (121) is formed to form a light-dark boundary for a low-beam distribution.
    [21]
    21. Headlight with one or more modules according to one of claims 1 to 20.
    [22]
    22. Headlight according to claim 21, characterized in that at least one of the modules, preferably all modules are pivotable about a substantially vertical axis.
    [23]
    23. Headlight according to claim 21, characterized in that the projection lens of one or more modules is pivotable about a respective vertical axis.
    [24]
    24. Headlight according to claim 23, characterized in that the axis passes through the focal point of the projection lens. Vienna, the
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    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 |
    2018-07-15| MM01| Lapse because of not paying annual fees|Effective date: 20171122 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1724/2011A|AT512246B1|2011-11-22|2011-11-22|LED PROJECTION MODULE AND HEADLIGHTS WITH MODULE|ATA1724/2011A| AT512246B1|2011-11-22|2011-11-22|LED PROJECTION MODULE AND HEADLIGHTS WITH MODULE|
    US14/359,399| US9611997B2|2011-11-22|2012-11-05|LED projection module|
    EP12798591.9A| EP2748518B8|2011-11-22|2012-11-05|Led projection module|
    PCT/AT2012/050173| WO2013075157A1|2011-11-22|2012-11-05|Led projection module|
    IN1099MUN2014| IN2014MN01099A|2011-11-22|2012-11-05|
    BR112014008989A| BR112014008989A2|2011-11-22|2012-11-05|led projection module|
    CN201280057436.3A| CN103946626B|2011-11-22|2012-11-05|LED projection module|
    MX2014006169A| MX2014006169A|2011-11-22|2012-11-05|Led projection module.|
    JP2014537424A| JP5939491B2|2011-11-22|2012-11-05|LED projection module|
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