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    • 专利摘要:
    The invention relates to a microprojection light module (1) for a motor vehicle headlamp, comprising at least one light source (2) and at least one projection device (3), which emits the light emerging from the at least one light source (2) in an area in front of the motor vehicle in the form of at least one light distribution, wherein the projection device (3) comprises: an entrance optics (30), which consists of an array of micro-entry optics (31); an exit optics (40) which consists of an array of micro exit optics (41), each micro entrance optic (31) being associated with exactly one micro exit optic (41), the micro entrance optics (31) being designed and / or or the micro-entry optics (31) and the micro-exit optics (41) are arranged to each other such that the light emerging from a micro-entry optics (31) exactly enters only the associated micro-exit optics (41), and wherein the the preformed light from the micro exit optics (41) is imaged into an area in front of the motor vehicle as at least one light distribution (LV1 - LV5; GLV), wherein between the entrance optics (30) and the exit optics (40). at least one aperture device (50) is arranged.
    公开号:AT514967A1
    申请号:T50692/2013
    申请日:2013-10-25
    公开日:2015-05-15
    发明作者:Friedrich Bauer；Gerald Böhm
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    Microprojection light module for a motor vehicle headlight
    The invention relates to a microprojection light module for a motor vehicle headlamp comprising *) at least one light source and *) at least one projection device which images the light emitted by the at least one light source into an area in front of the motor vehicle in the form of at least one light distribution.
    Furthermore, the invention relates to a lighting device for a Fahrzeugscheinwer¬fer.
    Moreover, the invention relates to a vehicle headlight.
    Current lighting systems or light modules or vehicle headlights, in particular using light-emitting diodes as light sources, use elaborate, highly accurate and therefore expensive LED light sources whose light is emitted by means of projection optics, e.g. a lens, optionally after passing the light through a primary or intent optic to a light distribution is formed. Due to the high costs, it is usually the goal to create the most efficient systems possible. However, this leads to lighting systems, etc., which are still comparable to conventional halogen light modules in space requirements.
    Attempts to reduce the focal length or in general the (smallest) distance of the light source to the reflector, in order to obtain a higher efficiency, mean that the light module etc. has a significantly higher sensitivity to manufacturing tolerances, whereby a higher efficiency, the would allow a smaller space, consuming and therefore expensive setting concepts makes necessary.
    It is an object of the invention to provide a light module for a motor vehicle headlight, which has a reduced overall depth.
    Furthermore, it is an object of the invention to provide a light module for a motor vehicle headlamp, which is as insensitive to tolerances as possible.
    These objects are achieved with a light module mentioned in the introduction in that according to the invention the projection device comprises: -) entrance optics consisting of a number of micro entry optics, which are preferably arranged in an array, -) exit optics consisting of a number Consists of micro-exit optics, which are preferably arranged in an array, each micro-entry optics is associated with exactly one micro-exit optics, wherein the micro-entry optics formed in such and / or the micro-entry optics and the micro-exit optics are arranged to each other, that substantially all of the light emerging from a micro-entry optic exactly enters only the associated micro-exit optics, and wherein the light preformed by the micro-entrance optics is imaged by the micro-exit optics in an area in front of the motor vehicle as at least one light distribution.
    The phrase "essentially all the light escaping. This means that after that, it is considered that the entire luminous flux emerging from a micro-entry optic is actually radiated only into the associated micro-exit optics. If this is not possible due to the circumstances, then it should be sought to irradiate at least as little luminous flux in the adjacent micro-exit optics that thereby no adverse optical effects, such as scattered light, which can lead to glare.
    In addition, under formulation "wherein the micro-entrance optics are formed in such a way and / or the micro-entry optics and the micro-exit optics are arranged in such a way to each other". It should also be understood that additional measures, such as apertures (see below), may be provided which either exclusively or preferably in addition to their actual function, still have the function of directing the entire luminous flux accurately to the associated micro-exit optic is.
    By using a plurality of dedicated micro-optics instead of a single optic as in conventional projection systems, both the focal lengths and the dimensions of the micro-optics per se are significantly less than in a "conventional" optical system. Look. Likewise, the center thickness can be reduced compared to a conventional lens. As a result, the depth of the projection device can be significantly reduced compared to a conventional optics, but by the reduction of the optics per se but also a good or very good efficiency (efficiency) achieved.With a conventional optics, which in their dimensions substantially unverän¬ If, however, the depth of field remains reduced and its focal length is reduced, the overall depth can be reduced, the efficiency is thereby worsened.
    The greater the number of micro-optics systems, the more accurate the desired distribution of light can be, with an upper limit on the number of micro-optics systems being limited primarily by the manufacturing techniques available. For the generation of a low beam function, e.g. 30-40 micro-optics system should be sufficient, this being neither a limiting value upwards or downwards but merely to describe an exemplary number.
    Such a light module is also scalable, i.e., multiple identical or similar light modules may be formed into a larger overall system, e.g. be assembled to a vehicle headlight.
    In a specific embodiment of the invention, it is provided that each micro-entry optics focuses the light passing through them into at least one micro-entry optical focus.
    Preferably, it is provided that a micro-entry optical focus of each micro-entry optics is in the light exit direction in front of the associated micro-exit optics.
    Each micro-entry optics thus has a focal point, which lies between the entrance optics and exit optics, and in which light the associated micro entrance optics is focused.
    In particular, it is provided that the micro-entry optics focus the light passing through them vertically in each case onto the micro entrance optics focal point located in front of the micro exit optics, wherein it is preferably provided that the micro exit optics each with the micro entrance optics -Brennpunkt the associated micro-entry optics coincident focal point.
    Thus, light is focused into the focus and then, after passing through the associated micro-exit optics, is correspondingly collimated in the vertical direction and projected into an area in front of the vehicle.
    For the sake of completeness, it should be stated here that the simpler wording here and generally in the context of this entire disclosure is in other places "focussed". is spoken. In fact, i. in reality, however, the light rays are not focused in a single focal point but are imaged into a focal plane containing said focal point. This focal plane may be a focal plane, but as a rule this burning surface is not flat due to aberrations but may also be curved "formed". be, i. the light rays are imaged into a curved surface containing the focal point.
    Furthermore, it is advantageously provided that each micro-optical system consisting of micro-entry optics and micro-exit optics expands the light passing through them in a horizontal direction.
    For this purpose, each micro-entry optics focuses the light passing through them in the horizontal direction to a focal point which lies behind the micro-exit optics. This light further passes through the micro-exit optics and is focused by this in the horizontal direction into a focal point, which lies behind the micro-exit optics.
    Preferably, the micro-entrance optics are formed as collecting optics, which collect light in the vertical and / or horizontal direction.
    It can be provided that the micro-entry optics are formed as free-form optics.
    Advantageously, it is further provided that the micro-exit optics are designed as Projektionsop¬tiken.
    For example, it can be provided that the micro-exit optics are formed as spherical lenses or as aspherical lenses.
    It can also be provided that the micro-exit optics are formed as free-form lenses.
    In a specific, particularly preferred embodiment of the invention, it is provided that the mutually facing interfaces of mutually associated micro-entry optics and micro-exit optics formed congruent to each other and are preferably also arranged congruent to each other. "Congruent educated " This means nothing more than that the interfaces of mutually associated micro-optics have the same shape of the base, with the principle of any spatial arrangement in the principle. "Congruent " arranged means that these Grundflächen are additionally arranged so that they either coincide immediately coincident or are indeed spaced apart, would be in a normal normal to one of the bases but congruent into each other.
    It is particularly advantageous if the optical axes of associated micro-entry optics and micro-exit optics are parallel to each other, wherein it is particularly advantageous if the optical axes coincide. In this way, the light image of each individual micro-optics system is imaged particularly precisely with regard to its position, so that when the individual light images are superposed, a desired overall light distribution, e.g. a low-beam distribution that optimally optimally generates them optically (for example, optimal superimposition of the individual light-dark boundaries, ...).
    Furthermore, it is expedient if the interfaces are formed flat.
    The bases of the optics may be e.g. be formed hexagonal, rectangular or preferably square.
    In order to be able to generate light distributions with defined shapes, for example with one or more light-dark boundaries, it can be provided that at least one aperture device is arranged between the inlet optics and the exit optics.
    In this case, the diaphragm device preferably lies in a plane which is spanned by the micro exit optical focal points.
    The micro-exit optics foci are those foci into which the micro-entry optics focus in the vertical direction, and where the foci of the micro-exit optics reside.
    In a specific embodiment, it is provided that the diaphragm device for at least one pair of micro-entry and micro-exit optics, preferably for a plurality of pairs and in particular for all pairs has a diaphragm with at least one, for example, exactly one optically effective diaphragm edge.
    For example, it may be provided that all diaphragms have identical diaphragm edges.
    However, it can also be provided that at least two diaphragms have differently shaped diaphragm edges.
    Basically, as described above, a projection device comprises a number of micro-optics systems, that is, pairs each consist of a micro-input optic and a micro-output optic. In the simplest embodiment without diaphragm device, all micro-optics systems produce the same light distribution, which comprises (partial) light distributions in total, e.g. form a high beam distribution. Here, for the sake of simplicity, it is assumed that with exactly one light module a complete light distribution is generated. In practice, however, it may also be provided that two or more light modules according to the invention are used to produce the total light distribution. This can e.g. then be useful if, for reasons of space nichteine a division of the components to different positions in the headlight is necessary.
    To generate a dimmed light distribution, such as a low-beam light distribution, which has a light-dark boundary in a known manner, it can now be provided that each micro-optics system more or less identical diaphragms are assigned in the beam path, so that all micro-optics systems create a light distribution with a cut-off line. The superimposition of all light distributions then gives as total light distribution the dimmed light distribution.
    In this case, as well as in all other cases, the diaphragms can be designed as individual diaphragms (eg in the form of an impermeable layer, for example a vapor-deposited layer, etc.) which "form" the diaphragm device, but it can also be a diaphragm device. Act component, such as a flat film, etc., in which entspre¬chende openings are provided for the passage of light.
    Furthermore, it can also be provided that different diaphragms are provided, ie that one or more micro-optics systems are assigned a first diaphragm, one or more other micro-optics systems have a different diaphragm (or no diaphragm), etc., so that different micro-optics systems form different light distributions. By selectively activating individual micro-optics systems, for which it is necessary, however, for them to be assigned their own light sources which can be controlled separately, at least in groups, individual, different light distributions can be generated in this way. which can also be operated in overlay.
    In a first variant of the invention it is provided that the projection device consisting of inlet optics and exit optics, and optionally of aperture device, is integrally formed.
    In a second variant it is provided that the projection device consisting of entry optics and exit optics is formed from two separate components.
    If, in such an embodiment, an aperture device is also provided, then it is expedient for the at least one diaphragm device to be arranged on the interface of the entrance optics facing the exit optics.
    In this case, however, provision may also be made for the at least one diaphragm device to be designed as a component formed separately from the entrance optics and the exit optics.
    A one-piece design has the advantage that after the production, which must be done exactly, a single, stable component is present, which can be easily installed.
    In the case of an at least two-piece design, in which the entrance and exit optics are separated from each other, a positioning effort of the individual components in the Zusammenam¬menbau is necessary, of advantage in this embodiment is that the individual components - as explained below - relative to each other can be moved.
    The invention is particularly advantageous when the at least one light source comprises at least one semiconductor light source, e.g. comprises at least one light emitting diode and / or at least one laser diode. The actual light source may in the latter case, i. in the case of use of at least one laser diode, be a luminous element or comprise one or more luminous elements (luminous element, for example in the form of a so-called "phosphor", an optoceramic, etc.), which may be obtained by a laser, i. a laser diode is illuminated and excited to emit light. For IR light a corresponding IR diode is used.
    Furthermore, it is advantageous if at least one attachment optics device is arranged between the at least one light source and the at least one projection device, in which at least one attachment optics device irradiates the at least one light source from its emitted light, and which attachment optics device is designed such that it emerges from it Light is directed substantially parallel.
    Preferably, the attachment optical device is designed as a collimator.
    In this way, the light emerging from the one or more light sources, in particular LED light source (s), can be optimally utilized.
    In an advantageous embodiment, as already briefly mentioned above, it is provided with advantage that the exit optics is displaceably mounted with respect to the entry optics.
    In particular, it is advantageous if the exit optics is displaceable in the installed position of the light module in the vertical and / or horizontal direction.
    In this way, the light image can be displaced in the vertical and / or horizontal direction, for example for headlight range adjustment and / or for the realization of a dynamic curve light function.
    It is expedient from an optical point of view if the exit optics are displaceable parallel to the entry optics and / or parallel to an optional diaphragm device.
    Preferably, an actuator is provided for displacing the exit optics in each case in one direction.
    In a specific embodiment, it is provided that the at least one actuator is a piezoelectric actuator.
    It is particularly advantageous if, as already explained above, the light-emitting diodes and / or laser diodes of a light source can be controlled independently of one another.
    Under "controllable" Here is primarily to understand the switching on and off. In addition, this can also be understood as meaning the dimming of the light-emitting diodes and / or laser diodes of the light sources.
    In addition, it is advantageous if, with two or more light sources for the light module, the light sources can be controlled independently of one another. By "independently of one another" is to be understood that actually all light sources can be controlled independently of one another, or that the light sources can be controlled in groups independently of one another.
    In one embodiment of the invention, it is provided that each micro-system consisting of a micro-entry optic and a micro-exit optics is assigned precisely one light source, which preferably comprises exactly one light-emitting diode or exactly one laser diode.
    However, it can also be provided that one or more light sources are used, which radiate light into a projection device consisting of a plurality of such microsystems. The light is thereby mixed or widened by one (or more) corresponding attachment optics 4 in such a way that one light source emits light onto a plurality of microsystems, as a rule (in the case of an attachment optics) onto all microsystems of a projection device.
    Not only only, but especially with the use of laser light sources has it also been found to be advantageous to provide two or more light source groups, each light source group comprising at least one light source and light sources of a light source group light of the same color or wavelength, and wherein light sources of different light source groups emit light of different colors, and wherein each light source groups illuminate a region of the at least one projection device specifically assigned to these light source groups, and wherein the different regions are identical or designed to produce identical light distributions.
    The different regions may be formed in a projection device or divided into two or more projection devices.
    For generating white light, it is favorable if three light source groups are provided, wherein preferably one light source groups emits red light, one light source groups green light and one light source groups blue light.
    The objects set forth above are further achieved with a lighting device for a vehicle headlight comprising a number of microprojection light modules as described above.
    In this case, it can be advantageously provided that two or more groups of light modules are provided for the lighting device, each group comprising at least one, two or more light modules, wherein light modules of a group produce the same Lichtvertei¬lung, and wherein light modules of different groups produce different light distributions.
    It may also be advantageous in this context if the light sources of each group of light modules can be controlled independently of the light sources of the other groups.
    Furthermore, it can be provided that the projection devices of light modules of a group form a common component.
    In an alternative embodiment, it is provided that the projection devices of all light modules form a common component.
    For example, it is provided in a lighting device according to the invention that the one or more common components in the form of a film is / are.
    It is particularly favorable if, in such an illumination device, two or more groups are provided for producing different light distributions, each group forming a different light distribution chosen, for example, from one of the following light distributions: *) cornering light-light distribution; *) City light distribution; *) Highway light distribution; *) Motorway light distribution; *) Light distribution for additional light for motorway light; *) Cornering light distribution; *) Low beam light distribution; *) Low beam apron light distribution; *) Light distribution for asymmetrical low beam in the far field; *) Light distribution for asymmetric low beam in the far field in the bend lighting mode; *) High beam light distribution; *) Glare-free high beam light distribution.
    Not only only, but especially with the use of laser light sources has it also been found to be advantageous if the lighting device comprises two or more light modules, each light module having at least one light source group, each light source group comprising at least one light source and light sources a light source group emit light of the same color, and zumin¬dest two light source groups are provided which emit light of different color, and wherein each light source group a specially assigned to this light source groups area of the at least one projection device of its light module, and wherein the different regions are identically formed or designed to generate identical light distributions.
    It is particularly advantageous if three groups of light source groups are provided, wherein preferably one group of the light source groups emits red light, one group of light source groups green light and one group of light source groups blue light, and wherein each group of light source groups emits blue light. Groups comprises at least one Lichtquel¬len group.
    A lighting device according to the invention can be part of a headlight, that is, combined with one or more light modules of a different design to form a headlight, or the vehicle headlight is formed by the lighting device.
    In the following the invention is discussed in more detail with reference to the drawing. In this shows
    1 is a schematic representation of a microprojection light module according to the invention in an exploded view,
    2 is a schematic representation of another microprojection light module according to the invention in an exploded view,
    2a is a schematic representation of a micro-optical system of a microprojection light module according to the invention in a perspective view and a vertical sectional plane,
    2b shows a section through the micro-optical system of Figure 2a along the plane A-A,
    2c again the illustration of Figure 2a, with a horizontal sectional plane,
    2d shows a section through the micro-optical system from FIG. 2c along the plane B-B,
    3 is a schematic representation of a diaphragm device with a number of Blen¬den,
    3a is a schematic representation of a total light distribution generated by a light module according to the invention with a diaphragm device from FIG. 3, FIG.
    FIG. 3b shows the partial light distributions produced with the individual diaphragms of the diaphragm device from FIG. 3, which together form the total light distribution from FIG. 3a, FIG.
    4a is a schematic detail of a projection device of a erfindungs¬gemäßen light module in one-piece design,
    4b is a schematic detail of a projection device of a erfindungs¬gemäßen light module in two-part design,
    4c shows a schematic detail of a projection device of a light module according to the invention in a three-part design,
    5 shows a microprojection light module as shown in FIG. 1, with an actuator for displacing the exit optics in the vertical direction, FIG.
    6 shows a microprojection light module as shown in FIG. 1, with an actuator for displacing the exit optics in the horizontal direction, FIG.
    7 shows a microprojection light module as shown in FIG. 1, with an actuator for displacing the exit optics in the vertical direction and an actuator for displacing the exit optics in the horizontal direction, FIG.
    8a shows a schematic light distribution,
    8b shows the effects of shifting the exit optics vertically downward onto the light distribution of FIG. 8a, FIG.
    8c shows the effects of a displacement of the exit optics vertically upward on the light distribution of FIG. 8a, FIG.
    9a shows a partial light distribution generated by a light module according to the invention or one or more micro-optics systems of such a light module,
    9b shows the effects of a shift of the exit optics horizontally to the left on the partial light distribution from FIG. 9a, FIG.
    9c shows the effects of a further displacement of the exit optics horizontally to the left on the partial light distribution from FIG. 9a, FIG.
    10 is a schematic representation of a lighting device constructed from a number of microprojection light module according to the invention,
    11a - 11c different variants of micro-optics systems, and
    Fig. 12 is a schematic arrangement for producing a white total light distribution using light sources of different colors.
    Figure 1 shows schematically a microprojection light module 1 according to the invention for a motor vehicle headlight. The microprojection light module 1 comprises a light source 2 and a projection device 3, which images the light emerging from the light source 2 into an area in front of the motor vehicle in the form of at least one light distribution. The coordinates shown denote the light exit direction Z, the horizontal direction (H), which is normal to Z and normal to the vertical direction V.
    The light source 2 is preferably a semiconductor light source, for example an LED light source, which has one or more LEDs. The light source may also consist of one or more laser diodes.
    The light source 2 radiates its light into an optical attachment 4, for example a collimator, which directs the light of the light source 2 substantially parallel before it impinges on the projection device 3.
    As shown in FIG. 1, this projection device 3 comprises an entry optics 30, which consists of an array of micro entrance optics 31, and an exit optics 40, which consists of an array of micro exit optics 41, wherein each micro entrance optics 31 is exactly one Micro exit optics 41 is assigned.
    FIG. 2 shows a variant of a microprojection light module 1 according to the invention, in which three light sources 2 in each case emit light into a common projection device 3, which has a similar construction as shown in FIG. 1, via an associated optical attachment 4 which directs the light in parallel.
    FIG. 2 is intended to illustrate that in principle any arrangement is conceivable in which certain light sources only respectively define defined areas of the projection device illumination 3. This can either serve to achieve a sufficient illuminance, but it can also be provided that - using the example of Figure 2 discussed - the areas of the projection device 3 are formed differently depending on the assigned light source. It may then be e.g. three different light distributions with the three light sources are generated, which can be activated together form a specific Gesamtlicht¬ distribution.
    The micro-entrance optics 31 in a light module according to the invention according to Figure 1 or 2 are designed and / or the micro-entry optics 31 and the micro-exit optics 41 are arranged to each other such that the exiting from a micro-entrance optics 31 light exactly in the associated Micro exit optics 41 occurs, and wherein the pre-formed by the micro-entry optics 31 light from the micro-exit optics 41 in an area in front of the motor vehicle as at least one light distribution LV1 - LV5; GLV is mapped.
    Furthermore, as can be generally deduced from the figures, an aperture device 50 is arranged between the entry optics 30 and the exit optics 40. With such a blending apparatus, as will be discussed in more detail below, the luminous flux passing through the projector can be cropped to produce one or more light distributions of defined shapes, for example one or more bright-dark boundaries.
    For the sake of completeness, it should be noted here that the representation in FIGS. 1 and 2 with substantially dark aperture device 50 does not make any statements about the design of masking device 50. The illustration is purely schematic and is intended only to show the presence of an aperture device 50 and its approximate location.
    An aperture device is also not absolutely necessary, that is, the present invention can be meaningfully realized even without aperture device. In this case, no cutting of the luminous flux takes place, the light image is generated by entrance and exit optics. An aperture device provides the advantage that a targeted trimming of the light distribution can be realized in a simple manner.
    The entrance optics 30 is a single component formed by the micro entrance optics 31. The micro-entry optics 31 lie directly, preferably without
    Distance apart and form an array as mentioned above and shown in Figures 1 and 2.
    Likewise, the exit optics 40 is a single component which is formed by the micro exit optics 41. The micro-exit optics 41 are directly, preferably without spacing together and form an array as mentioned above and shown in Figures 1 and 2.
    In addition, as will be explained below, the entry optics and the exit optics, if appropriate together with the diaphragm device, can be embodied in one piece.
    FIGS. 2 a and 2 c show a micro-optics system consisting of a micro-entry optics 31 and an associated micro-exit optics 41, which are designed and / or arranged as described above such that light from the micro-entry optics 31 shown only in the associated micro-exit optics 41 passes. Furthermore, FIG. 2 a shows a part of an optional diaphragm device in the region between the two micro-optics 31, 41.
    Looking at the micro-optics system of FIGS. 2a and 2c, it can be seen in FIG. 2b that the micro-entrance optics 31 focuses the light passing through them in the vertical direction into a micro-entrance-optic focal point F1. Thus, Figure 2b shows light rays which lie in a vertical plane (namely the plane A-A of Figure 2a) or the projection of light rays into this plane A-A.
    The light rays emerging in parallel from the optical attachment (not shown here) are thus focused by the micro entrance optics 31 into the micro entrance optics focal point Fl, which lies in front of the associated micro exit optics 41 in the light exit direction.
    As already mentioned, for the sake of completeness, it should be reiterated here that the simpler formulation here and generally in the context of this overall disclosure is in other instances referred to as focusing "on a focus". In fact, i. In reality, however, the light rays are not focused in a single focal point but are imaged in a focal surface, which contains the said focal point. This focal surface may be a focal plane, but as a rule this focal surface is not planar due to aberrations and may also be "curved". be, i. the light rays are imaged into a curved surface containing the focal point.
    Each micro-entry optics thus has a focal point Fl, which lies between entrance optics and exit optics, and in which light of the associated micro entrance optics is focused.
    Furthermore, the micro exit optics 41 has a focal point coincident with that of the associated micro entrance optics 31. Thus, light is focused into the focal point Fl and then, as it passes through the associated micro exit optics 41, correspondingly collimates in the vertical direction and projected into an area in front of the vehicle, as shown schematically in FIG. 2b.
    Figure 2d further shows the behavior in the horizontal direction, i. rays are considered to lie in a horizontal plane, say in plane B-B of Figure 2c, and the projection of rays into this plane, respectively. As can be seen in Figure 2d, each micro-optics system consisting of micro-entry optics 31 and micro-exit optics 41 expands the light passing through them in the horizontal direction. For this purpose, each micro-entry optics 31 focuses the light passing through them in the horizontal direction to a focal point which lies behind the micro-exit optics 41. However, this light passes through the micro-exit optics 41 in advance and is focused by the latter in the horizontal direction into a focal point F2, which lies behind the micro-exit optics 41. In the horizontal direction, the light is thus scattered in order to achieve the desired width of the partial light distributions of the individual micro-optics systems.
    It should be noted again here that an idealized optical system is described; in practice, both first and second optics of a micro-optics system are often performed in free-form, resulting in a map as described above in a focal plane.
    In general, the above diagram shows an exemplary, concrete embodiment. An essential feature, independent of a focal point F2, is that in the horizontal plane the light passing through the micro-optical systems is widened.
    The micro-entry optics 31 are accordingly preferably designed as collection optics which collect light in the vertical and horizontal directions. The micro-entrance optics 31 may be e.g. be designed as a free-form optics.
    The micro-exit optics 41 are usually formed as projection optics, e.g. as spherical or aspherical lenses. It can also be provided that the micro-exit optics 41 are formed as free-form lenses.
    Reference should now briefly be made to Figures 11a-11c: above and in the further description, it is assumed that each micro-entry optic 31 and each micro-exit optics 41 are each formed from a single lens. However, it may also be provided that either the micro-entry optics 31 and / or the micro-exit optics 41 themselves once each of a number of "optics". or optical elements. Each of these "micro-micro-optics" a micro-optic must have the same focal plane. For example, one or both of the micro-optics may be Fresnel lenses having different optical areas. Any of the micro-optic micro-optic area may, but does not have to, emit light into each micro-micro-exit optic radiate.
    FIG. 11a shows an example in which, in a micro-optics system, the micro-entry optics and the micro-exit optics are designed as Fresnel lenses.
    Figure 11b shows an example in which the micro-entry optics are referred to as " conventional " Lens and the micro-exit optics is designed as a Fresnel lens.
    FIG. 11c shows an example in which the micro-entry optics are described as "conventional". Lens and the micro-exit optics formed as an array of micro-micro lenses.
    Figures 11a-11c show only some conceivable variants, combinations or other subdivisions of the micro-optics.
    Furthermore, as can be seen from FIGS. 2 a and 2 c, the mutually facing boundary surfaces 31 ', 41' of mutually associated micro-entry optics 31 and micro-exit optics 41 are constructed congruent to one another and preferably also arranged congruent to one another. "Congruent educated " This means nothing more than that the interfaces of mutually associated micro-optics have the same shape of the base, with the principle of any spatial arrangement in the principle. "Congruent " arranged means that these Grundflächen are additionally arranged so that they either coincide immediately coincident or are indeed spaced apart, would be in a normal normal to one of the bases but congruent into each other.
    In addition, it is expedient if the boundary surfaces 31 ', 41' are planar.
    In the example shown, the surfaces 31 ', 41' are square in shape, other shapes are rectangular or hexagonal.
    The optical axes 310, 410 (FIGS. 2b, 2d) of associated micro-entry optics 31 and micro-exit optics 41 advantageously run parallel to one another, and it is particularly advantageous if the optical axes 310, 410 coincide.
    The diaphragm device 50 lies in a plane which is spanned by the micro-exit optical focal points F1. In this case, the diaphragm device 50 preferably has a diaphragm for each micro-optics system (see FIGS. 2a, 2c), wherein the diaphragm has one or more optically effective diaphragm edges.
    FIGS. 2a, 2c show a micro-optics system, to which a diaphragm 52 with an optically effective diaphragm edge 52 'is assigned. The light passing through this system is correspondingly cropped and the diaphragm edge 52 'is imaged in the light image as a cut-off line.
    If an aperture device 50 is provided, then it has an aperture for at least one pair of mutually associated micro-entry and micro-exit optics 31, 41. However, the aperture device 50 preferably has an aperture for a plurality of pairs, and more particularly for all pairs 51, 52, 53, 54, 55, each having at least one, for example, an optically effective diaphragm edge 51 ', 52', 53 ', 54', 55 '.
    The latter situation is shown schematically in FIG. FIG. 3 shows an aperture device 50 in a view from the front, wherein the aperture device 50 has five different types of diaphragms 51-55. Each of these apertures 51-55 is made of an opaque material 51 " - 55 " which has exactly one (as shown) or more (not shown) transparent apertures 51 " " - 55 '" through which light can pass. Through the apertures, the light image is trimmed accordingly, the Blendenkante 51 ', 52', 53 ', 54', 55 'of the apertures in the respective partial light image as overhead light-dark boundaries, which limits the light image upward.
    Each of these diaphragms is precisely associated with a micro-optics system, and when all micro-optics systems are irradiated with light, a total light distribution GLV, as shown schematically in FIG. 3a, results as a superposition of all partial light distributions. The overall light distribution GLV shown in the example shown is a dimming light distribution with an asymmetrical cut-off line.
    FIG. 3b shows in each case one of the diaphragms 51-55 and, to the left of the diaphragm, the partial light distribution LV1-LV5 thus produced in each case.
    In this way, e.g. a low-beam light distribution with a light module according to the invention are produced, wherein to the low-beam light distribution individual micro-optics systems each produce a defined contribution in the form of a partial light distribution.
    In this way, any desired total light distributions can be generated, and by group-wise illumination of micro-optical systems with identical aperture, each with at least one own light source, only certain partial light distributions can be selectively activated (or masked out), so that e.g. create a dynamic light distribution.
    The design of the entrance optic (s) and exit optics (s) may allow only limited shaping of the light distribution. By using preferably standardized diaphragms as described above, a number of partial light distributions can be produced, which, when appropriately selected, lead to the desired total light distribution.
    The apertures may e.g. may also be embodied as individual diaphragms which "form" the diaphragm device, but as shown it is preferably a diaphragm device component, for example a flat foil, etc., into which corresponding openings / openings for the passage of light are provided.
    As already mentioned briefly above, it can be provided that in a first embodiment of the invention, as shown in FIG. 4 a, it is provided that the projection device 3 comprises entrance optics 30 and exit optics 40 and, as shown, optionally a diaphragm device 50. is formed in one piece. The optic body is, for example, a plastic optic which has been purposefully carbonized to realize a blinding device in the region in which the visor device is provided. Such charring can be done by laser beams or electron beams, etc.
    In a second variant, which is shown in FIG. 4b, it is provided that the projection device 3 is formed from two separate components, an entrance optic 30 and an exit optic 40, which are typically also arranged at a distance from each other.
    If an aperture device 50 is also provided in such an embodiment, then it is expedient for the aperture device 50 to be arranged on the boundary surface 31 'of the entrance optics 30 facing the outlet optic 40.
    The diaphragm device can be produced by vapor deposition of the interface 31 ', or by applying an absorbing layer, which is subsequently removed again selectively, for example by means of laser beams. It is also conceivable to provide exit optics on such entrance-optics provided with a blending device by means of e.g. Apply two-component injection molding, so that finally returns to a component.
    In this case, however, provision may also be made for the at least one diaphragm device 50 to be designed as a component which is separate from the entrance optics 30 and the exit optics 40, as shown in FIG. 4c. In this case, the diaphragm device 50 in the form of a precise mask, e.g. made of metal (shadow mask, line masks, grid, etc.
    It should be noted that in the previous figures, the inner surfaces of the optics 30, 40 are smooth, while the outer surfaces are curved. Basically, it is also possible that one or both inner surfaces of the optics 30, 40 are formed curved, but is this only possible in the case of a two- or multi-part design.
    A one-piece design has the advantage that after the production, which must be done exactly, a single, stable component is present, which can be easily installed.
    In the case of an at least two-piece design, in which the entrance and exit optics are separated from each other, a positioning effort of the individual components in the Zusammenam¬menbau is necessary, of advantage in this embodiment is that the individual components - as explained below - relative to each other can be moved.
    Figures 5-7 show embodiments in which the exit optics 40 are slidably mounted with respect to the entry optics 30. The entrance optics 30 and the diaphragm device (not shown) formed separately from it (as shown) or together with the entrance optics 30 are / are correspondingly formed separately from the exit optics 40.
    The outlet optics 40 is - in the installation position of the light module 1 - in the vertical (Figure 5), horizontal (Figure 6) or vertical and horizontal (Figure 7) direction displaced. In this way, the light image in the vertical and / or horizontal direction, e.g. for adjusting the headlamp leveling and / or for realizing a dynamic cornering light function.
    In this case, the exit optics 40 are preferably displaced parallel to the entry optics 30, and / or parallel to the optionally present aperture device 50.
    For displacing the exit optics 40 in one direction, an actuator 140, 141 is provided in each case, wherein it is provided in a specific embodiment that the at least one actuator 140, 141 is a piezoactuator. A typical travel for such a piezoactuator is in the range of 100 gm. In principle, however, other actuators with a travel of < 1 mm are used.
    In order to achieve a uniform displacement of the entire light image, in which the light image per se does not change, but only its position, it is favorable if all the micro-optical systems affected by the displacement, in particular the micro-exit Optics have the same optical parameters, in particular are identical.
    In addition, care must be taken in the design of the projection device that even with a shift of the exit optics no light or only a small portion of the light emerging from a micro-entry optics, enters an unassigned micro-exit optics.
    However, it can also be provided that the micro-optics systems are differently shaped in order to achieve a targeted change of the light image.
    In the specific exemplary embodiment, a small shift in the imaging optics, i. the exit optics e.g. by 0.03 mm for a shift of the light image by 0.8 °. By way of example, FIG. 8a shows a schematic light distribution, FIG. 8b shows the same light distribution after shifting the exit optics vertically downwards, FIG. 8c shows the effects of shifting the exit optics vertically upwards onto the light distribution. The shape of the light distribution has not changed or only insignificantly changed, while the light distribution has moved up or down.
    A headlamp leveling of about 2.5 ° can be achieved, for example, with a stroke of about 1mm.
    By shifting the exit optics, some distortions of the photograph may occur. When designing the system as a whole, it must be borne in mind that these distortions meet the legal and technical requirements.
    FIG. 9a shows a partial light distribution produced with a light module according to the invention or one or more micro-optics systems of such a light module. FIG. 9b shows the effects of shifting the exit optics horizontally to the left on the partial light distribution from FIG. 9a, and FIG. 9c shows the effects of yet another embodiment Slide the exit optics horizontally to the left on the partial light distribution. FIG. 9b shows a displacement of the imaging exit optics by approximately 0.1 mm and FIG. 9c by approximately 0.2 mm.
    As can be seen, a small displacement is sufficient to realize a noticeable displacement of the light image in the vertical and / or horizontal direction.
    In a conventional projection system with a projection lens, the lens typical diameter between 60 mm and 90 mm. In a module according to the invention, the individual micro-optics systems have typical dimensions of about 2 mm × 2 mm (in V and H) and a depth (in Z) of about 6 mm-10 mm, so that a significantly smaller one in Z-direction Depth of a module according to the invention compared to herkömmli¬chen modules results.
    The light module according to the invention have a small overall depth and are in principle freely formable, i. it is e.g. it is possible to design a first light module to produce a first partial light distribution separately from a second light module for a second partial light distribution and to release them relatively freely, i. arranged vertically and / or horizontally and / or offset in depth to each other, so that design specifications can be realized easier.
    Another advantage of a light module according to the invention is that, although the Projekti¬onseinrichtung is very accurate to produce, which is problem-free with today's production methods, but eliminates the exact positioning of the light source (s) in relation to the projection optics. Exact positioning is only of secondary importance insofar as the at least one light source illuminates an entire array of micro-entrance optics, all of which produce substantially the same light image. In other words, this means nothing else than that the "real" Light source of the or the real light source (s) and the array of micro-entry optics is formed. This "real " Light source then illuminates the micro-exit optics and optionally the associated apertures. Now that the micro-entry and micro-exit optics are already optimally matched to one another, since they form a system, as it were, an inaccurate positioning of the real light source (s) is less significant.
    FIG. 10 also shows a lighting device for a vehicle headlight comprising a number of microprojection light modules as described above. In this case, a plurality of groups of different light modules are provided, for example, light modules of the groups AA, AA1, AA2, SSI, BF1-BF8, FL, ABL, SA1, SA2, which together form the lighting device, are shown in FIG. Each group AA, AA1, AA2, SSI, BF1-BF8, FL, ABL, SA1, SA2 comprises one, two or more light modules.
    In the example shown, each group contains exactly one light module, which are listed below. In this case, AA denotes a light module for producing an asymmetrical low-beam light LVaa in FIG
    Far field; AA1, AA2 asymmetrical low beam LVaai, LVaa2 in the far field in the bend light module; SSI light module for generating a symmetrical light distribution LVssi (front field of a low beam, city light); BF1 ... BF8 Light modules for creating a glare-free high beam LVbfi - LVbfs; the individual light distributions LVbfi - LVbfs together produce a high beam distribution. part of it, the individual light distributions can be hidden independently if necessary; FL a light module for generating a high beam LVfl; ABL a light module for generating a turning light LVabl; SA1, SA2 additional light components for highway light LVsai, LVsa2.
    It is advantageous in such a lighting device if the light sources of each group of light modules AA, AA1, AA2, SSI, BF1-BF8, FL, ABL, SA1, SA2 are controllable independently of the light sources of the other groups, so that the individual light distributions or partial light distributions can be independently switched on and off and / or dimmed.
    Figure 10 is a purely schematic illustration, and in connection with Figure 10 of " light modules " the speech. In fact, FIG. 10 merely and purely schematically shows the projection devices AA, AA1, AA2, SSI, BF1-BF8, FL, ABL, SA1, SA2 of the individual microprojection light modules, and as can be seen in FIG. 10, the projection devices AA , AA1, AA2, SSI, BF1 - BF8, FL, ABL, SA1, SA2 of the individual light modules a common component in the form of eg a curved band. These projection devices can be arranged, for example, on a film.
    Thus, with the present invention, the lens arrays of micro-entry and micro-exit optics can be freely shaped, and two or more light modules according to the invention can be combined to form a lighting device via a common projection device component, preferably those areas of the projection device component associated with a particular light module (and thus with an independently controllable light source), the micro-optics systems are identical.
    Finally, FIG. 12 shows a further possible application of the invention. In this embodiment it is provided that different areas, e.g. exactly three different areas illuminated by micro-optics systems 3 with light sources 2 of different color (R, G, B), for example one area with red light (R), another area with green light (G) and a third area with blue light (B).
    The different regions may belong to a projection module 3 (as shown), but also to different (two or more, for example three) projection modules or to one projection device or to two or more, in particular three projection devices. It is only important that each different area of micro-optics systems generates the same light distribution as the other areas.
    By overlaying the light images from the different areas, the result is a white light image.
    If laser light sources are used as light sources in this context-see also the discussion above, only a few microprojection arrays (regions) are required to produce a white light distribution due to the high luminous intensities of lasers, so that a smaller light module can be generated in the lateral direction ,
    权利要求:
    Claims (48)
    [1]
    1. Microprojection light module (1) for a motor vehicle headlight, comprising *) at least one light source (2) and *) at least one projection device (3), which projects the light emerging from the at least one light source (2) into an area the motor vehicle in the form of at least one light distribution, characterized in that the projection device (3) comprises: -) an entrance optics (30) consisting of a number of micro entrance optics (31), which are preferably arranged in an array, -) an exit optics (40), which consists of a number of micro exit optics (41), which are preferably arranged in an array, wherein each micro entrance optics (31) is assigned exactly one micro exit optics (41), whereby the micro Entry optics (31) formed in such and / or the micro-entry optics (31) and the micro-exit optics (41) are arranged to each other such that substantially the total the light exiting from a micro-entry optical system (31) enters the associated micro-exit optics (41) precisely, and the light preformed by the micro-entry optics (31) moves from the micro-exit optics (41) into an area in front of the motor vehicle as at least one light distribution (LV1 - LV5; GLV) is mapped.
    [2]
    2. Light module according to claim 1, characterized in that each micro-entry optics (31) focuses the light passing through them into at least one micro-entry optical focus (Fl).
    [3]
    3. Light module according to claim 2, characterized in that a micro-entry optical focus (Fl) of each micro-entry optics (31) in the light exit direction in front of the zugeord¬neten micro-exit optics (41).
    [4]
    4. Light module according to claim 3, characterized in that the micro-entry optics (31) focus the light passing through them in the vertical direction respectively on the front of the micro-exit optics (30) lying micro-entry optics focus (Fl).
    [5]
    5. Light module according to claim 4, characterized in that the micro exit optics (41) each have a coincidence with the micro entrance optics focal point (Fl) of the associated micro entrance optics (31) focal point.
    [6]
    6. Light module according to one of claims 2 to 5, characterized in that each micro-optical system consisting of micro-entry optics (31) and micro-exit optics (41) widens the light passing through them in the horizontal direction.
    [7]
    7. Light module according to one of claims 1 to 6, characterized in that the micro-entry optics (31) are designed as collecting optics.
    [8]
    8. Light module according to one of claims 1 to 7, characterized in that the micro-entry optics (31) are formed as free-form optics.
    [9]
    9. Light module according to one of claims 1 to 8, characterized in that the micro-exit optics (41) are designed as projection optics.
    [10]
    10. Light module according to one of claims 1 to 9, characterized in that the micro-exit optics (41) are formed as spherical or aspherical lenses.
    [11]
    11. Light module according to one of claims 1 to 9, characterized in that the micro-exit optics (41) are formed as free-form lenses.
    [12]
    12. Light module according to one of claims 1 to 11, characterized in that the mutually facing boundary surfaces (31 ', 41') of mutually associated micro-entry optics (31) and micro-exit optics (41) are formed congruent to each other and preferably also arranged congruent to each other ,
    [13]
    13. Light module according to one of claims 1 to 12, characterized in that the optical axes (310, 410) of mutually associated micro-entry optics (31) and micro-exit optics (41) parallel to each other.
    [14]
    14. Light module according to claim 13, characterized in that the optical axes (310,410) coincide.
    [15]
    15. Light module according to one of claims 12 to 14, characterized in that the boundary surfaces (31 ', 41') are planar.
    [16]
    16. Light module according to one of claims 1 to 15, characterized in that zwi¬schen the entrance optics (30) and the exit optics (40) at least one aperture device (50) is arranged.
    [17]
    17. Light module according to claim 16, characterized in that the diaphragm device (50) lies in a plane which is clamped by the micro exit optical focal points (El).
    [18]
    18. Light module according to claim 16 or 17, characterized in that the diaphragm device (50) for at least one pair of associated micro-entry and micro-exit optics (31, 41), preferably for a plurality of pairs and in particular for all pairs Aperture (51, 52, 53, 54, 55), each having at least one, for example, exactly one op¬ effectively effective diaphragm edge (51 ', 52', 53 ', 54', 55 ').
    [19]
    19. Light module according to claim 18, characterized in that all the diaphragms have identical diaphragm edges.
    [20]
    20. Light module according to claim 18, characterized in that at least two Blen¬den have differently shaped aperture edges.
    [21]
    21. Light module according to one of claims 1 to 20, characterized in that the projection device (3) consisting of inlet optics (30) and exit optics (40), and optionally of diaphragm device (50), is integrally formed.
    [22]
    22. Light module according to one of claims 1 to 20, characterized in that the projection device (3) consisting of inlet optics (30) and exit optics (40) is formed from two mutually separate components.
    [23]
    23. Light module according to claim 22 in conjunction with one of claims 16 to 20, characterized in that the at least one diaphragm device (50) on the exit optics (40) facing the interface (31 ') of the entrance optics (30) is arranged.
    [24]
    The light module according to claim 22 in any one of claims 16 to 20, characterized in that said at least one aperture device (50) is formed as a component separate from said entrance optic (30) and said exit optic (40).
    [25]
    Light module according to one of claims 1 to 24, characterized in that the at least one light source (2) comprises at least one semiconductor light source, e.g. at least one light emitting diode and / or at least one laser diode comprises.
    [26]
    26. Light module according to one of claims 1 to 25, characterized in that zwi¬schen the at least one light source (2) and the at least one projection device (3) at least one attachment optics device (4) is arranged, in which at least one Vorsatzoptikeinrichtung (4) at least one light source (2) irradiates the light emitted by it, and which attachment optical device (4) is designed such that the light emerging from it is directed substantially parallel.
    [27]
    27. Light module according to claim 26, characterized in that the attachment optics device (4) is designed as a collimator.
    [28]
    28. Light module according to one of claims 22 to 27, characterized in that the exit optics (40) is slidably mounted with respect to the entrance optics (30).
    [29]
    29, light module according to claim 28, characterized in that the exit optics (40) -in installation position of the light module (1) - in the vertical and / or horizontal direction verschieb¬bar.
    [30]
    30. Light module according to claim 28 or 29, characterized in that the Austrittsop¬tik (40) parallel to the entrance optics (30), and / or parallel to an optionally vorhan¬denen aperture device (50) is displaceable.
    [31]
    31, light module according to one of claims 28 to 30, characterized in that for the displacement of the exit optics (40) in each case an actuator (140, 141) is provided in each case one direction.
    [32]
    32. Light module according to claim 31, characterized in that the at least one actuator (140, 141) is a piezoactuator.
    [33]
    33. Light module according to one of claims 1 to 32, characterized in that the light emitting diodes and / or laser diodes of a light source are independently controllable.
    [34]
    34. Light module according to one of claims 1 to 33, characterized in that two or more light sources for the light module (1), the light sources are independently voneinander be controlled.
    [35]
    35. Light module according to one of claims 1 to 34, characterized in that each micro-system consisting of a micro-entry optics (31) and a micro-exit optics (41) assigned to exactly one light source, which preferably comprises exactly one light emitting diode or exactly one laser diode is.
    [36]
    36. Light module according to one of claims 1 to 35, characterized in that two or more light source groups are provided by, wherein each light source group comprises at least one light source (2), and wherein light sources (2) of a light source groups light of the same color ( R, G, B), and wherein light sources of different light source groups emit light of different colors (R, G, B), and wherein each light source group has a region (3R, 3G, 3B) dedicated to said light source groups illuminate at least one projection device, and wherein the different areas (3R, 3G, 3B) are identical or designed to generate identical light distributions.
    [37]
    37. Light module according to claim 36, characterized in that three light source groups are provided, wherein preferably a light source groups red light, a light source groups green light and a light source groups emit blue light.
    [38]
    38. A lighting device for a vehicle headlamp, comprising a number of microprojection light modules (1) according to one of claims 1 to 37.
    [39]
    39. Lighting device according to claim 38, characterized in that two or more groups of light modules (AA, AA1, AA2, SSI, BF1 - BF8, FL, ABL, SA1, SA2) are provided, and wherein each group one, two or more light modules (1), wherein light modules (AA, AA1, AA2, SSI, BF1-BF8, FL, ABL, SA1, SA2) of a group of the same light distribution (LVaa, LVaai, LVAa2, LVssi, LVbfi-LVbfs, LVfl, LVabl, LVsai, LVsa2), and wherein light modules (AA, AA1, AA2, SSI, BF1-BF8, FL, ABL, SA1, SA2) of different groups have different light distributions (LVaa, LVaai, LVaa2, LVssi, LVbfi-LVbfs, LVfl, LVabl, LVsai , LVsa2).
    [40]
    40. Lighting device according to claim 39, characterized in that the light sources of each group of light modules are controllable independently of the light sources of the other groups.
    [41]
    41. Lighting device according to claim 39 or 40, characterized in that the projection devices (3) of light modules (AA, AA1, AA2, SSI, BF1 - BF8, FL, ABL, SA1, SA2) of a group form a common component.
    [42]
    42. Lighting device according to one of claims 39 to 41, characterized gekennzeich¬net that the projection devices (3) of all light modules form a common component (300).
    [43]
    43. Lighting device according to claim 41 or 42, characterized in that the one or more common components (300) is / are formed in the form of a film.
    [44]
    44. Lighting device according to one of claims 39 to 43, characterized gekennzeich¬net that two or more groups for generating different light distribution (LVaa, LVaai, LVaai, LVssi, LVbfi - LVbfs, LVfl, LVabl, LVsai, LVsa2) are provided, wherein each group forms a different light distribution (LVaa, LVaai, LVaa2, LVssi, LVbfi - LVbfs, LVfl, LVabl, LVsai, LVSA2), which consists of one of the following light distributions (LVaa, LVaai, LVaa2, LVssi, LVbfi - LVbfs, LVfl, LVabl, LVsau LVsa2) is selected. *) Cornering light distribution; *) City light distribution; *) Highway light distribution; *) Motorway light distribution; *) Light distribution for additional light for motorway light; *) Cornering light distribution; *) Low beam light distribution; *) Low beam apron light distribution; *) Light distribution for asymmetrical low beam in the far field; *) Light distribution for asymmetric low beam in the far field in the bend lighting mode; *) High beam light distribution; *) Glare-free high beam light distribution.
    [45]
    45. The illumination device according to claim 38, comprising two or more light modules, each light module having at least one light source group, each light source group comprising at least one light source, and light sources of a light source group having light of the same color (R , G, B), and at least two light source groups are provided which emit light of different color, and wherein each light source group has an area (3R, 3G, 3B) of said at least one projection device of its light specially assigned to said light source group Illuminate ¬ module, and wherein the different areas (3R, 3G, 3B) formed identically or are designed to generate identical light distributions.
    [46]
    Light module according to claim 45, characterized in that three groups of light source groups are provided, wherein preferably one group of light source groups emits red light, one group of light source groups green light and one group of light source groups emits blue light, and wherein each group of light source groups comprises at least one light source group.
    [47]
    47. Lighting device according to one of claims 38 to 46, characterized gekennzeich¬net that it is designed as a vehicle headlight.
    [48]
    48. A vehicle headlight with one or more lighting devices according to one of claims 38 to 47.
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    同族专利:
    公开号 | 公开日
    JP6229054B2|2017-11-08|
    EP3060842B1|2020-03-25|
    CN105637287B|2018-09-18|
    WO2015058227A1|2015-04-30|
    EP3060842A1|2016-08-31|
    ES2793933T3|2020-11-17|
    AT514967B1|2015-08-15|
    US20160265733A1|2016-09-15|
    CN105637287A|2016-06-01|
    JP2016534503A|2016-11-04|
    US9951919B2|2018-04-24|
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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 |
    2019-06-15| MM01| Lapse because of not paying annual fees|Effective date: 20181025 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50692/2013A|AT514967B1|2013-10-25|2013-10-25|Microprojection light module for a motor vehicle headlight|ATA50692/2013A| AT514967B1|2013-10-25|2013-10-25|Microprojection light module for a motor vehicle headlight|
    ES14805168T| ES2793933T3|2013-10-25|2014-10-20|Micro-projection light module for a motor vehicle headlight|
    US15/031,869| US9951919B2|2013-10-25|2014-10-20|Microprojection lighting module for a motor vehicle headlight|
    EP14805168.3A| EP3060842B1|2013-10-25|2014-10-20|Microprojection lighting module for a motor vehicle headlight|
    JP2016525895A| JP6229054B2|2013-10-25|2014-10-20|Car headlight|
    CN201480058555.XA| CN105637287B|2013-10-25|2014-10-20|Microprojection optical module for motor vehicle headlamp|
    PCT/AT2014/050251| WO2015058227A1|2013-10-25|2014-10-20|Microprojection lighting module for a motor vehicle headlight|
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