奥地利专利AT510437A4 LED LIGHT MODULE AND VEHICLE HEADLIGHTS

专利PDF首页>>奥地利专利

专利附录

专利说明

权利要求

类似技术

同族专利

引用文献

法律状态

优先权

专利摘要:
The invention relates to an LED light module (1) for a motor vehicle or for a headlight for a motor vehicle, the light module (1) comprising a lens (2) and at least one primary LED light source (8), viewed in the light exit direction between the at least one primary LED light source (8) and the lens (2) is provided a light tunnel (11) for direct passage of at least a portion of the light emitted by the at least one primary LED light source (8) through the light tunnel (11) emergent light of the at least one primary LED light source (8) is projected via the lens (2) for generating a main light function or a contribution to a main light function in the area in front of the motor vehicle, wherein the light tunnel (11 ) is formed from an at least partially, preferably in the entire area transparent material, a holder (3) for holding the light tunnel (11) is provided, wherein the holder (3) at least teilswei is preferably formed completely transparent, and wherein at least one secondary LED light source (9) is provided, which with respect to the light tunnel (11) is arranged such that the light emitted from the at least one secondary LED light source (9) is essentially emitted to the holder (3), and wherein the light tunnel (11) limiting wall (10 ', 11', 12 ') at least partially light-reflecting is formed.
公开号:AT510437A4
申请号:T206/2011
申请日:2011-02-16
公开日:2012-04-15
发明作者:Markus Dipl Ing Danner；Helmut Dr Erdl
申请人:Zizala Lichtsysteme Gmbh；Bayerische Motoren Werke Ag；
IPC主号:

专利说明:

P11911 LED light module
The invention relates to an LED light module for a motor vehicle or for a headlight for a motor vehicle, wherein the light module comprises a lens and at least one primary LED light source, as seen in the light exit direction between the at least one primary LED light source and the lens a light tunnel is provided for direct passage of at least a portion of the light emitted by the at least one primary LED light source, wherein the light exiting through the light tunnel of the at least one primary LED light source via the lens for generating a main light function or a Contribution to a main light function in the area in front of the motor vehicle is projected.
The light emitted by such a primary LED light source, e.g., a high power LED light source (e.g., LUMILED Altillin Core or OSTAR Headlamp) may be shaped by a light tunnel and transmitted through a lens, e.g. a free-form lens, aspherical lens, Fresnel lens are projected onto the road and form there a main light distribution, e.g. a low beam distribution, or a contribution to such a main light distribution. The entire light distribution results, for example, by using a plurality of such or different light modules. Such a primary LED light source includes e.g. several light-emitting diodes, for example four light-emitting diodes. Due to the use of a light tunnel, which has a certain length, it is ensured that the light of the individual light-emitting diodes well mixed and thus gives the required homogeneous Lichtverteil ung.
It is an object of the invention to be able to also produce an additional light function or a contribution to an additional light function with such a headlight or light module, whereby care must be taken that this does not cause mutual interference of the different light images and that, in particular, the main light distribution does not is impaired, for example, by unwanted interference radiation, which may be particularly problematic in dimmed light distribution. The interference radiation can namely cause a glare increase. This increase in glare is not permitted for dimmed light patterns (for example, dipped beam, motorway light, etc., as described, for example, in ECE R123 or SAE regulation) when it exceeds the legal limits
This object is achieved with an LED light module mentioned in the introduction in that, according to the invention, the light tunnel is formed of a material which is transparent at least in regions, preferably in the entire region, a holder for holding the light tunnel is provided, the holder being formed at least partially, preferably completely transparent and wherein at least one secondary LED light source is provided, which is arranged with respect to the light tunnel such that the light emitted from the at least one secondary LED light source is substantially emitted to the holder, and wherein the light tunnel delimiting wall at least partially light-reflecting is formed.
The light tunnel has a shading function for the additional light function, which would result in no law-compliant light distribution for the additional light function. For this reason, the light tunnel is formed of a transparent material.
After the light tunnel itself is also formed of a transparent material, wherein the light in the tunnel is preferably forwarded by total reflection, however, there is a risk that light from the light tunnel in the transparent holder crossing and thereby unwanted or legally prohibited interference occurs, which, in particular, can often be the case when the main light function is a dimmed light function such as a dimmed light function.
Due to the inventive design of the wall of the light tunnel, which is designed to be reflective at least in the relevant areas of light, however, the risk of interference can be eliminated, so that even with a light module with which two light functions can be generated, these can be generated in accordance with the law.
By area means that only at certain locations, especially those locations of the wall where light from the at least one primary LED light source can enter the light tunnel and from there into the holder, the wall is reflective.
Even if the light tunnel forwards the light in the interior by total reflection, it can naturally happen that light can enter the material forming the light tunnel and lead to interfering rays, in particular if the light can also enter the holder. -3- 4 • ** ** ·· * ·· * «μ Ιι *
By (at least partially) reflective design of the inner wall of the light tunnel, this can be reduced or completely prevented.
The light of the secondary LED light sources penetrates into the body forming the light tunnel (the body practically constitutes a light guide), but not through the reflective coating into the light tunnel. Of course, even without the reflective design, the boundary wall of the light tunnel would be totally reflective even for light from the secondary LED light sources, but a certain percentage of the light would nevertheless enter the light tunnel. For the secondary light function this would be unproblematic, the reflective design of the light tunnel is therefore not necessary for the additional light function, but does not interfere with the very small spatial extent (thickness) or only to a negligible extent.
According to the invention, it becomes possible to generate an additional light distribution by means of the at least one secondary LED light source. On the one hand, the light tunnel is held in position with the holder, on the other hand, the light originating from the at least one secondary LED light source can pass through the holder and is imaged via the lens as an additional light distribution in an area in front of the vehicle.
Under the wall of the light tunnel in this case is to be understood in particular the inner wall of the light tunnel.
Typically, the holder is narrower than the longitudinal extent of the light tunnel. In the first place, it is therefore expedient for the wall of the light tunnel to be reflective at least in the region adjoining the holder.
In order to be able to optimally utilize the luminous flux, it is provided that the at least one secondary LED light source is arranged with respect to the light tunnel, in particular with regard to the light aperture of the light tunnel, that substantially no luminous flux of the at least one secondary LED light source exits through the light tunnel. Usually, the holder is crystal clear, but it can also be provided that the holder is at least partially formed as a diffuser to obtain a particularly homogeneous light image of the additional light distribution.
Optically optimal and easiest to manufacture is the light tunnel or the light module, if the entire surface of the wall of the light tunnel is formed reflecting light.
In the first place, the wall of the light tunnel is designed to be reflective at least in the Wellerüängenbereich for visible light.
For example, the wall of the Lichtturvnels is formed mirrored.
In a specific variant of the invention it is provided that the wall of the light tunnel is partially or completely (i.e. the entire surface of the wall) is provided with a light-reflecting layer.
In view of ease of manufacture, it has proven to be expedient if the wall of the light tunnel is partially or completely vaporized with the light-reflecting layer / are.
With regard to a simple, convenient production, and the most accurate construction of the light module, it is advantageous if the light tunnel and the holder are integrally formed. For a simple attachment of the reflective layer, it is particularly advantageous if the light tunnel and / or the holder or the one-piece elements holder - light tunnel has / have a two-part structure /, wherein the separation planes between the two holder parts extend through the light tunnel. At these two parting planes, the respective elements are joined together.
In particular, it is provided that the two dividing planes of the light tunnel and / or the holder are also light-reflecting, preferably totally reflective, for which purpose the dividing planes are provided, for example, with a light-reflecting layer, preferably vapor-deposited with this reflective layer.
In particular, these parting planes are coated / steamed in order to simplify manufacture.
It would be optimal for the optical function if only the light tunnel, ie its inner wall, is vapor-coated / coated. However, in a one-piece design, the light tunnel would be difficult to optimally evaporate / coat, as the corresponding, e.g. Aluminum mist difficult to evenly and completely in the
Lichttunrvel would distribute, which could result in places with too low coating thickness, which again could bring about the risk of stray light.
Accordingly, one chooses a two-part structure, where in principle a multi-part construction is conceivable, but that would increase the cost. Reflective coated only the tunnel itself (on the inside) must be. In order to avoid elaborate masking (parts of the holder that should not be coated, would have to be covered), coated the whole separation / face. This has little influence on lighting technology, since this coating is very thin.
In a specific embodiment of the LED light module according to the invention, it is provided that essentially the entire emitted, optically relevant luminous flux of the at least one primary LED light source exits through the light tunnel for generating the main light function.
Under "relevant " Luminous flux is to be understood as the luminous flux which can enter the lens via the light entry surface of the lens, ie is not reflected, and thus can be used in principle for the light function. Depending on the embodiment, a light emitting diode has a certain Ab beam behavior, so that usually a portion of the light rays - if it is not deflected is radiated in one direction that their angle of incidence on the light entrance surface of the lens is greater than the so-called opening angle of the lens, this light so reflected. Light from the LED light source, which occurs at a greater angle than the aperture angle, no longer represents "relevant " Luminous flux is.
In addition, it can be provided that the at least one secondary LED light source or all secondary LED light sources are outside the optical axis of the light module.
In order to achieve an optimal, as homogeneous as possible illumination of the lens or a homogeneous appearance as possible of the holder or the holder designed as a diffuser and thus the light module, may further be provided that the at least one secondary LED light source against the light exit direction, is offset to the rear relative to the primary LED light source. (That is, the light exit surfaces of the light sources are offset from each other.)
With increasing distance of the LED light source (s) of the secondary light source, a more homogeneous illumination of the holder / the lens is achieved. -6- P11911 -6- P11911 Λ • · · ·
In the sense of a homogeneous illumination of the holder, it is further if, as provided in an advantageous variant, the primary LED light source comprises two or more light-emitting diodes.
How many light-emitting diodes must be used depends on the one hand on the strength of the LEDs and on the other hand on the light distribution that is to be generated.
It is expedient if the at least one primary LED light source and the at least one secondary LED light source or the at least one light-emitting diode of the at least one primary LED light source and the at least one light-emitting diode of the at least one secondary LED light source are separated are controllable so that the primary light source and the secondary light source (s) can be switched on and off independently.
Furthermore, it is provided that, during operation of the at least one secondary LED light source, the at least one primary LED light source is dimmed or switched off.
It is attempted to shine in the secondary light with the light of the secondary light sources as close as possible to the edge of the light tunnel zoom; the primary LED light source is dimmed, but it is lit to provide continuous illumination and the light tunnel does not cause a dark spot in the secondary light image. The lens precisely projects the light distribution that occurs in its focal plane. Light from the secondary LED light sources can not enter the tunnel, which would therefore appear dark and appear as a dark spot in the light image if the primary LED light source (s) did not continue to glow (dimmed).
In main light mode, only the at least one primary LED light source is usually switched on, the secondary LED light sources are usually switched off. In the case of a main light function = high beam, however, the secondary LED light sources could continue to be operated in order to be able to emit more light onto the road.
Furthermore, it is advantageous if - in the installed state of the light module in a vehicle headlight - in the vertical direction below a horizontal plane through the primary LED light source n secondary LED light sources and above the horizontal plane m secondary LED light sources are provided, m < n applies.
Horizontal plane "by " the LED light source means that this plane is defined by the PI 1911 * »* • I · • Φ * • · *
Der -7- LED of the LED light source or with several LEDs through the geometric center of these LEDs runs.
Since the lens of the light module is mostly viewed from angles above this horizontal, it is advantageous if the number of LEDs in the lower area is increased, since this area is imaged in the angular range above the horizontal, thus achieving a more visually appealing illumination of the lens can be.
Basically optimal would be a high number of LED light sources for the secondary light source, but this is limited by costs and available space of the spotlight. In a simple, favorable variant of the invention, with which attractive results can be achieved in the illumination, m = 0.
In terms of the most uniform possible illumination, it is further when the secondary LED light source (s) above / below the horizontal plane is / are arranged symmetrically in the horizontal direction with respect to a vertical plane through the optical axis.
In addition, it can also be provided in this connection that laterally next to the primary LED light source - that is to say in a horizontal plane with the primary LED light source - further secondary LED light sources of the secondary light source are arranged.
In order to make optimal use of the luminous flux from the primary LED light source, it is further provided with advantage that the dimensions of the light tunnel, such as diameter, side dimensions, length etc. and / or the arrangement of the at least one primary LED light source Reference is made to the light tunnel and / or the distance of the at least one primary LED light source to the holder such that of the at least one primary LED light source all emitted light rays, which are within an opening angle of the lens, pass through the light tunnel can.
By the term "arrangement with respect to the light tunnel " is to be understood primarily "with respect to the light entrance opening of the light tunnel".
Furthermore, it is advantageous if the dimensions of the light tunnel, such as diameter, side dimensions, length, etc., and / or the arrangement of the at least one secondary LED light source with respect to the light tunnel and / or the distance between the at least one secondary light source. LED light source are selected to the holder such that of the at least one P11911 1 • «· · t · 4 * * * * • * *« «« ·· * * * «« · · · «· · · ·« ·· * «·« ·· * »· # * I · * (| · 4 · · · -8-
Secondary LED light source Beams only reach those areas of the holder that are outside the light tunnel.
In this way, no passage of secondary light can take place directly through the light tunnel.
In particular, it is advantageous if the dimensions of the light tunnel, such as diameter, side dimensions, length, etc., and / or the arrangement of the at least one secondary LED light source with respect to the light tunnel, i. to its light inlet opening, and / or the distance of the at least one secondary LED light source are selected to the holder such that emitted from the at least one secondary LED light source light rays to the edge of the light entrance opening of the light tunnel.
Furthermore, it may finally be advantageous if the light tunnel is provided with an optically transparent material, in particular a material which is transparent in the region of visible light, e.g. filled with a silicone. Thus, a protection of the coating / vapor deposition against external influences (moisture, dust, etc.) can be realized, whereby the risk of detachment or corrosion of the coating / vaporization can be dispelled.
In addition, a filled light tunnel provides slightly higher light levels (Emax) than a non-filled light tunnel, as light rays are refracted when entering optically denser media to the solder, so that it comes to a concentration of light rays.
In the following the invention is discussed in more detail with reference to the drawing. In this shows
1 shows an inventive LED light module in a schematic representation,
2 is a schematic representation of a light tunnel and holder,
3 shows the upper part of the light tunnel and holder of Figure 2 with a view of the underlying LED print,
4 in analogy to FIG. 3 the lower part of the light tunnel and holder, FIG.
5 shows the LED print with primary and secondary LED light sources,
6 is a perspective view of the upper and the lower part of the light tunnel and the holder,
Fig. 7 light tunnel and holder in a rear view, and Fig. 8 shows the lower part of the one-piece holder and Lichttunncls.
1 schematically shows an LED light module 1 for a motor vehicle or for a headlight for a motor vehicle, wherein the light module 1 comprises a lens 2 and an LED print 20, on which - see FIG. 5 - a primary LED light source 8 and a plurality of secondary LED light sources 9 are mounted.
The optical axis is designated 100.
Such an LED light module 1 generates, for example, a complete main light distribution, such as a dipped beam, but preferably e.g. only one contribution to such a light distribution, such as the Asymmetrieanteil in the low-beam distribution, while the remaining light distribution of other, additional light modules, which are not the subject of the description, are generated. The same applies to the additional light distribution, and here too the light module according to the invention makes a contribution to the additional light distribution.
The primary LED light source 8 in the example shown comprises four light emitting diodes 8r (light emitting surfaces 8 ') housed in a housing 8 " are arranged.
In the example shown, the secondary LED light sources 9 each comprise exactly one light-emitting diode 9 'which is housed in a housing 9 " is arranged.
Seen in the light exit direction between the primary LED light source 8 and the lens 2, a light tunnel 11 is provided for direct passage of the light emitted by the primary LED light source 8, wherein the light emerging through the light tunnel 11 of the primary LED light source. 8 via the lens 2 for generating a main light function (in the following or generally in this document, the "main light function" or the "main light" and, analogously, the "additional light" is mentioned, then also "a proportion " to be meant by the respective distribution of light, without any consideration of this difference separately) being projected into the area in front of the motor vehicle.
That of such a primary LED light source, e.g. Light emitted by a high power LED light source (e.g., LUMILED Altillin Core or OSTAR Headlamp) may be shaped by means of a light tunnel and transmitted through the lens 2, e.g. a free-form lens, aspherical lens, Fresnel lens are projected onto the road and forms there a Hauptlichtverteilimg, e.g. a low beam distribution (or, as mentioned, a certain proportion of them in the light image). Due to the use of a light tunnel 11, which has a certain length and whose light exit surface / opening 10 has a corresponding shape (eg for forming an asymmetry component in the light distribution), it is ensured that the light of the individual light-emitting diodes mixes well and thus the required homogeneous Light distribution results.
With such a headlamp or light module, an additional light function should now also be generated, whereby care must be taken that this does not impair the main light distribution, for example due to undesired interference radiation, which can be problematical, in particular with dimmed light distributions. For this purpose, the light tunnel 11 is formed of a transparent material, and further a holder 3 for holding the light tunnel 11 is provided, wherein the holder 3 is also formed transparent.
The secondary LED light sources 9 are arranged with respect to the light tunnel 11 such that the light emitted by the secondary LED light sources 9 is emitted substantially to the holder 3 and passes therethrough and via the lens 2 as an additional light function (for example a daytime running light) or contribution to this additional light function is mapped.
The light tunnel 11 or the light tunnel 11 forming body 40, 41 has a shading function for the additional light function, which would result in no law-compliant light distribution for the additional light function. For this reason, the light tunnel 11 and the body 40, 41 constituting the light tunnel 11 are formed of a transparent material.
After the light tunnel itself is also formed of a transparent material, wherein the light in the tunnel is preferably passed through total reflection, there is (despite total reflection) the risk that light from the light tunnel 11 in the transparent holder 3 transfer and thus unwanted or legally permissible interference radiation occurs, which can often be the case, in particular, when the main light function is a dimmed light function such as a dipped-beam function, since this may lead to unauthorized glare values above the HD line. P11911 t * * * «* t * • * # * kl« · t · · • «« («M * * *« «· * * * * * *« «1 * 1 · · · * »* * * * II« * · »» -11 -
In order to prevent this, the wall of the light tunnel is designed to be reflective at least in the relevant areas, so that the risk of interference radiation is eliminated. As a result, in the case of a light module with which two light functions are generated, these are generated in conformity with the law.
By (at least partially) reflective design of the inner wall 10 ', 11', 12 'of the light tunnel 11, the interference can be reduced or completely switched off.
Under the wall 10 ', 11', 12 'of the light tunnel 11 while the inner wall of the body 40, 41, which forms the light tunnel 11 to understand.
Preferably, the entire inner wall 10 ', 1Γ, 12' of the light tunnel 11 is formed reflecting light, i. both the immediately adjacent to the holder 3 inner wall 10 'and the forward to the light exit opening 10 toward extending wall 11' are reflective.
Also, the rearwardly extending wall 12 ', which comprises the primary LED light source 8 (and strictly speaking is no longer part of the light tunnel 11, but here for the sake of simplicity as belonging to the light tunnel 11 is called), is formed reflecting. The wall 12 'is geometrically designed so that as little as possible light from the primary LED light source enters the outside or in the holder 3, to which this example. as shown stepped is formed. In order to block the light of the primary LED light source completely against entry into the holder 3, the wall 12 'is formed reflecting.
The light of the secondary LED light sources penetrates into the body 40, 41, which forms the light tunnel (the body 40, 41 is practically a light guide), but not into the light tunnel 11 through the reflective coating. Even without the reflective design Of course, the boundary wall 10 ', 11', 12 'of the light tunnel 11 would be totally reflective even for light from the secondary LED light sources, but a certain percentage of the light would nevertheless enter the light tunnel. For the secondary Liehtfunktion this would be unproblematic, the reflective design of the light tunnel is therefore not necessary for the additional light function, but does not interfere with the very small spatial extent (thickness) or only to a negligible extent. PI1911
»· · · · II * * ft ft *························································································· 44 4 * · «· · Mt ** -12-
According to the invention, it becomes possible by means of the secondary LED light sources 9 to provide an additional light distribution, e.g. to generate a daytime running light distribution. On the one hand, the light tunnel 11 is held in position with the holder 3, on the other hand, the light originating from the secondary LED light source 9 can pass through the holder 3 and is imaged via the lens 2 as an additional light distribution in an area in front of the vehicle ,
As indicated in Figure 2 and e.g. clearly visible in Figures 3, 4 and 6, but also in Figure 7 and 8, the light tunnel 11 and the holder 3 are integrally formed in an element, this element itself again preferably consists of two parts 3a, 3b.
The elements 30, 30 ', 31, 31', which are preferably integrally formed with the parts 3a, 3b, can be clearly seen in particular in FIGS. 3, 4 and 6. These elements serve to fasten the two parts 3a, 3b together.
As regards terminology, the following is stated here: *) the light tunnel 11 itself is a through-hole in a transparent body 40, 41 (see, for example, FIG. accordingly, the phrase "light tunnel 11 integral with a holder 3" means that the body 40, 41 constituting the light tunnel 11 is integral with the holder 3; *) further means, as can already be seen above, the term "integral". in "light tunnel 11 integral with holder 3 " not necessarily that actually only "one piece" or "a component " Rather, it should be expressed that holder and light tunnel or the light tunnel forming body 40, 41 are formed in a common component, but that this component may also have a two-part construction (or multi-part); however, the two-part separation of this component does not take place in a separation light tunnel holder, but each of the components comprises a part of the holder and the light tunnel, as e.g. can be clearly seen in Figure 6
The holder 3 (or the "integral element of light tunnel and holder in the region of the holder) is crystal clear, but it can also be provided that the holder 3 is designed as a diffuser to obtain a particularly homogeneous light image of the additional light distribution.
In the first place, the wall 10 ', 1Γ, 12' of the light tunnel 11 is designed to be reflective at least in the wavelength range for visible light. PI1911 -13-
For example, the wall 10 ', 11', 12 'of the light tunnel 11 is formed mirrored.
The wall 10 ', 11', 12 'of the light tunnel 11 is preferably completely provided with a light-reflecting layer, wherein it has proved to be expedient in terms of ease of manufacture, when the wall 10', 11 ', 12' of the light tunnel is vaporized with the light-reflecting layer.
In particular, for easy attachment of the reflective layer, it is advantageous if the " integral " Component of light tunnel 11 and holder 3 has a two-part construction, wherein the parting planes 3a ', 3b' between the two parts 3a, 3b pass through the light tunnel 11. At these two parting planes, the respective elements are joined together.
Preferably, the dividing planes 3a ', 3b' are laid through the retainer / light tunnel in such a way that one of the two parting planes, in the example the upper parting plane 3a 'is a continuous flat surface, a part of this flat surface ie the "ceiling". of the light tunnel (see FIG. 6), while the lower part 3b with the lower parting plane 3b 'contains virtually the entire light tunnel without a ceiling. The separation thus takes place at the highest possible position in this example, which passes through the light tunnel. This separation has the advantage that even with a slightly offset / shifted joining of the two parts 3a, 3b in the light tunnel itself no edges or steps are formed which would be reflected in the light image. If the separation would not take place at the highest (or lowest) possible position through the light tunnel, but rather through the middle of the light tunnel, staggered assembly would result in steps / edges in the light tunnel, as one can easily imagine.
Because the parting planes 3a ', 3b' extend through the light tunnel 11, its wall 10 ', 11', 12 'can be optimally vaporized / coated. Usually, the two parting planes 3a ', 3b' are also vapor-deposited with a light-reflecting layer, which is primarily in the sense of simpler manufacture.
It would be optimal from the optical function if only the light tunnel, ie its inner wall is vapor-coated / coated. However, in a one-piece design, the light tunnel would be difficult to optimally evaporate / coat, as the corresponding, e.g. It would be difficult to evenly and evenly distribute aluminum mist in the light tunnel (because the light tunnel is very small and narrow), which could create spots with too little coating thickness, again causing the risk of stray light.
Accordingly, one chooses a two-part structure, where in principle a multi-part structure is conceivable, but this would increase the cost. Reflective coated only the tunnel itself (on the inside) must be. In order to avoid elaborate masking (parts of the holder that should not be coated, would have to be covered), coated the whole separation / face. This has little influence on lighting technology, since this coating is very thin and increases the cost efficiency and process reliability.
Finally, it is expedient if the primary LED light source 8 and the secondary LED light source 9 can be controlled separately so that the primary light source and the secondary light source (s) can be switched on and off independently of one another.
During operation of the secondary LED light sources 9, the primary LED light source 8 is dimmed.
Attempts are made to light up the secondary light sources 9 with the light of the secondary light sources 9 as far as possible up to the edge of the light tunnel 11; The primary LED light source 8 is dimmed, but lights up, so that there is a continuous illumination and the light tunnel does not produce a dark spot in the light image of the secondary light. The lens precisely projects the light distribution that occurs in its focal plane. Light from the secondary LED light sources can not enter the tunnel, which would therefore appear dark and appear as a dark spot in the light image if the primary LED light source did not continue to glow (dimmed).
In main light mode, only the at least one primary LED light source is usually switched on, the secondary LED light sources are usually switched off. In the case of a main light function = high beam, however, the secondary LED light sources could continue to be operated in order to be able to emit more light onto the road.

权利要求:
Claims (27)
[1]
1. LED light module (1) for a motor vehicle or for a headlight for a motor vehicle, wherein the light module (1) comprises a lens (2) and at least one primary LED light source (8), viewed in the light exit direction between the at least one primary LED light source (8) and the lens (2) is provided with a light tunnel (11) for direct passage of at least a portion of the light emitted by the at least one primary LED light source (8) the light tunnel (11) emerging light of the at least one primary LED light source (8) via the lens (2) for generating a main light function or a contribution to a main light function is projected into the area in front of the motor vehicle, characterized in that the light tunnel (11) is formed from a material which is transparent at least in regions, preferably in the entire region, a holder (3) for holding the light tunnel (11) is provided, the holder (3) being closed est is partially, preferably completely transparent, and wherein at least one secondary LED light source (9) is provided, which is arranged with respect to the light tunnel (11) such that the at least one secondary LED light source (9 ) emitted light substantially to the holder (3) is emitted, and wherein the light tunnel (11) limiting wall (10 ', 1Γ, 12') at least partially light-reflecting is formed.
[2]
2. Light module according to claim 1, characterized in that the wall is at least in the area adjacent to the holder (3) region (10 ') light-reflective ausgecbildet,
[3]
3. Light module according to claim 1 or 2, characterized in that the at least one secondary LED light source (9) is arranged with respect to the light tunnel (11) such that substantially no luminous flux of the at least one secondary LED light source ( 9) exits through light tunnel (11),
[4]
4. Light module according to one of claims 1 to 3, characterized in that the holder (3) is at least partially formed as a diffuser.
[5]
5. LED light module according to one of claims 1 to 4, characterized in that the Ρ11911

-16- Λ entire surface of the wall (10 ', 11', 12 ') of the light tunnel (11) is formed reflecting light.
[6]
6. LED light module according to one of claims 1 to 5, characterized in that the wall (10 ', 11', 12 ') of the light tunnel (11) is reflective at least in the wavelength range for visible light.
[7]
7. LED light module according to one of claims 1 to 6, characterized in that the wall (10 ', 11', 12 ') of the light tunnel (11) is formed mirrored.
[8]
8. LED light module according to one of claims 1 to 7, characterized in that the wall (10 ', 11', 12 ') of the light tunnel (11) is provided partially or completely with a light-reflecting layer.
[9]
9. LED light module according to claim 8, characterized in that the wall (10 ', 11', 12 ') of the light tunnel (11) partially or completely vaporized with the light-reflecting layer is / are.
[10]
10. Light module according to one of claims 1 to 9, characterized in that the light tunnel (11) and the holder (3) are integrally formed.
[11]
11. LED light module according to one of claims 1 to 10, characterized in that the light tunnel (11) and / or the holder (3) has a two-part structure /, wherein the parting planes (3a ', 3b') between the two Holder parts (3a, 3b) through the light tunnel (11).
[12]
12. LED light module according to claim 11, characterized in that the two separation planes (3a ', 3b') of the light tunnel (11) and / or of the holder (3) are likewise designed to be light-reflecting, preferably totally reflective, for which purpose the trellis planes ( 3a ', 3b'), for example, provided with a light-reflecting layer, preferably vaporized with this reflective layer.
[13]
13. LED light module according to one of claims 1 to 12, characterized in that substantially the entire emitted, optically relevant luminous flux of the at least one primary LED light source (8) through the Lichttunncl (11) for generating the main light function exits ,
[14]
14. LED 'light module according to one of claims 1 to 13, characterized in that the at least one secondary LED light source (9) or all secondary LED light sources (9) lie outside the optical axis (100) of the light module,
[15]
15. LED light module according to one of claims 1 to 14, characterized in that the at least one secondary LED light source (9) opposite to the light exit direction, with respect to the primary LED light source (8) is arranged offset to the rear.
[16]
16. LED light module according to one of claims 1 to 15, characterized in that the primary LED light source (8) comprises two or more light-emitting diodes (8 ').
[17]
17. LED light module according to one of claims 1 to 16, characterized in that the at least one primary LED light source (8) and the at least one secondary LED light source (9) or the at least one light emitting diode (8 ') of at least one primary LED light source (8) and the at least one light-emitting diode (9 ') of the at least one secondary LED light source (9) can be controlled separately.
[18]
18. LED light module according to one of claims 1 to 17, characterized in that during operation of the at least one secondary LED light source (9) the at least one primary LED light source (8) is dimmed or switched off.
[19]
19 LED light module according to one of claims 1 to 18, characterized in that - in the installed state of the light module in a vehicle headlight - in the vertical direction below a horizontal plane through the primary LED light source (9) n sacked LED light sources ( 9) and above the horizontal plane m secondary LED light sources (9) are provided, wherein m < n applies.
[20]
20. LED light module according to claim 19, characterized by m = 0.
[21]
21. LED light module according to claim 19 or 20, characterized in that the secondary LED light source (s) (9) above or below the horizontal plane in each case symmetrically in the horizontal direction with respect to a vertical plane through the optical axis ( 100) is arranged / are.
[22]
22. LED light module according to one of claims 19 to 21, characterized in that laterally next to the primary LED light source (9) further secondary LED light sources (6 ', 7') of the secondary light source are arranged.
[23]
23. LED light module according to one of claims 1 to 22, characterized in that the dimensions of the light tunnel (11), such as diameter, side dimensions, length etc. and / or the arrangement of the at least one primary LED light source (8) with respect to the light tunnel (11) and / or the distance of the at least one primary LED light source (8) to the holder (3) are selected such that of the at least one primary LED light source (8) all emitted light beams which are within an opening angle of the lens (2) can pass through the light tunnel (11).
[24]
24. LED light module according to one of claims 1 to 23, characterized in that the dimensions of the light tunnel (11), such as diameter, side dimensions, length, etc. and / or the arrangement of the at least one secondary LED light source (9 ) with respect to the light tunnel (11) and / or the distance of the at least one secondary LED light source (9) to the holder (3) are selected such that of the at least one secondary LED light source (9) light rays only get into those areas of the holder (3), which lie outside the light tunnel (11).
[25]
25. LED light module according to claim 24, characterized in that the dimensions of the light tunnel (11) in the lens (3), such as diameter, side dimensions, length, etc. and / or the arrangement of at least one secondary LED Light source (9) with respect to the light tunnel (11), ie on its light inlet opening (10), and / or the distance of the at least one secondary LED light source (9) to the holder (3) are selected such that from the at least one secondary LED light source (9) light rays up to the Edge of the light entrance opening (10) of the light tunnel (11) are emitted.
[26]
26. LED light module according to one of claims 1 to 25, characterized in that the light tunnel (11) with an optically transparent, in particular transparent in the range of visible light material, e.g. filled with a silicone.
[27]
27. A vehicle headlamp with at least one light module according to one of claims 1

类似技术:

公开号 | 公开日 | 专利标题

EP2676069B1|2018-12-05|Led light module

AT510931B1|2013-09-15|VEHICLE HEADLIGHTS WITH LED LIGHT MODULE

EP2306074B1|2017-05-17|Motor vehicle headlight with a lighting module comprising semiconductor light sources, a primary optic and a secondary optic

DE102010056313C5|2017-03-16|Lighting device of a motor vehicle

DE102009053581B3|2011-03-03|Light module for a lighting device of a motor vehicle

AT512569B1|2014-09-15|Lighting device for a motor vehicle

EP2652392B1|2018-01-10|Led light module

DE102010041096A1|2012-03-22|lighting device

EP2523022B1|2016-04-20|Lighting module of a motor vehicle headlamp for creating a variable light distribution and motor vehicle headlamp with such a lighting module

DE102005043992B4|2010-04-08|Signal light of a vehicle

WO2016096597A1|2016-06-23|Lighting fixture

AT512711B1|2014-08-15|Light module for a motor vehicle and motor vehicle headlights

EP3012521B1|2018-02-21|Light for a motor vehicle

EP2795183B1|2017-07-12|Optical element for a laser vehicle headlight

DE102014215534A1|2015-02-12|vehicle lamp

WO2012113532A1|2012-08-30|Lighting device

AT500750B1|2006-03-15|VEHICLE HEADLIGHTS

DE102006029412A1|2008-01-03|Motor vehicle e.g. car, light e.g. headlight or tail light, has front and rear illumination units partially arranged one behind other in light emitting direction, where each illumination unit includes light sources and reflectors

AT514121A1|2014-10-15|Lighting unit for a vehicle headlight and vehicle headlights

DE102011087309A1|2013-05-29|Lighting device e.g. headlight, for vehicle e.g. ship, has aperture located in inner space of shell reflector for disconnection of reflected lights on upper shell region and on lower shell region

EP3473918A1|2019-04-24|Lighting device for a motor vehicle headlight

DE102017131012B3|2019-06-27|Light module of a motor vehicle headlight and headlights with such a light module

DE102011087308A1|2013-05-29|Lighting device with reflector, lens and aperture

同族专利:

公开号 | 公开日

CN103518096B|2016-09-07|

JP5768898B2|2015-08-26|

CN103518096A|2014-01-15|

JP2014502779A|2014-02-03|

EP2676069B1|2018-12-05|

WO2012109681A1|2012-08-23|

EP2676069A1|2013-12-25|

US20130308329A1|2013-11-21|

AT510437B1|2012-04-15|

BR112013017449A2|2019-04-09|

US9243767B2|2016-01-26|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

WO2014012128A1|2012-07-18|2014-01-23|Zizala Lichtsysteme Gmbh|Lighting unit for a headlight|

WO2014032071A1|2012-09-03|2014-03-06|Zizala Lichtsysteme Gmbh|Lighting unit for a headlight|

WO2014094017A1|2012-12-20|2014-06-26|Zizala Lichtsysteme Gmbh|Light‑emitting unit for a projector lamp|

CN109484517A|2017-09-12|2019-03-19|标致雪铁龙汽车股份有限公司|Means of transport optical unit with the translucent screen being suspended in covering|JP2004047351A|2002-07-15|2004-02-12|Koito Mfg Co Ltd|Vehicular lighting fixture|

JP4094366B2|2002-07-24|2008-06-04|株式会社小糸製作所|Vehicle lighting|

JP4335621B2|2003-04-25|2009-09-30|スタンレー電気株式会社|Vehicle lighting|

JP4044024B2|2003-09-29|2008-02-06|株式会社小糸製作所|Vehicle headlamp|

DE10346144A1|2003-10-01|2005-04-28|Bosch Rexroth Ag|Method for storing the actual value|

JP4191651B2|2004-06-24|2008-12-03|株式会社小糸製作所|Vehicle lighting|

JP2006236588A|2005-02-22|2006-09-07|Koito Mfg Co Ltd|Optical llumination device and vehicular lighting fixture|

DE102005033709B4|2005-03-16|2021-12-16|OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung|Light emitting module|

US8104939B2|2005-08-31|2012-01-31|Osram Sylvania Inc.|LED headlamp system|

AT503580B1|2006-05-17|2007-11-15|Zizala Lichtsysteme Gmbh|SUPPLY OPTICS SYSTEM FOR A LED LIGHT UNIT FOR MOTOR VEHICLES|

US20070279910A1|2006-06-02|2007-12-06|Gigno Technology Co., Ltd.|Illumination device|

DE102006044641A1|2006-09-19|2008-03-27|Schefenacker Vision Systems Germany Gmbh|Light unit with LED, light guide and secondary lens|

JP5033530B2|2007-07-27|2012-09-26|スタンレー電気株式会社|Light source unit for vehicle lamp|

EP2068068B1|2007-12-07|2013-11-20|Stanley Electric Co., Ltd.|Vehicle headlamp|

JP2009179113A|2008-01-29|2009-08-13|Koito Mfg Co Ltd|Head lamp device for vehicle and its control method|

JP4995748B2|2008-01-29|2012-08-08|株式会社小糸製作所|Vehicle headlamp device and control method for vehicle headlamp device|

JP5255301B2|2008-03-12|2013-08-07|株式会社小糸製作所|Vehicle headlamp device|

JP5447763B2|2008-03-27|2014-03-19|スタンレー電気株式会社|Vehicle headlamp|

FR2935324B1|2008-08-29|2010-09-24|Faurecia Interieur Ind|AUTOMOTIVE VEHICLE TRIM PANEL COMPRISING A PICTOGRAM AND A LIGHT TRANSMISSION MATERIAL|

JP5091808B2|2008-09-02|2012-12-05|株式会社小糸製作所|Vehicle lighting|

EP2163814B1|2008-09-16|2020-03-11|HELLA GmbH & Co. KGaA|Reflector for a lighting device for a motor vehicle|

JP5381351B2|2009-06-03|2014-01-08|スタンレー電気株式会社|Vehicle lighting|

US8348484B2|2010-04-22|2013-01-08|Ford Global Technologies, Llc|Vehicle exterior lamp|

EP2386792B1|2010-05-12|2013-09-11|Zizala Lichtsysteme GmbH|LED light module|AT511499A1|2011-05-30|2012-12-15|Zizala Lichtsysteme Gmbh|VEHICLE HEADLAMP WITH LED LIGHT MODULES FOR GENERATING A MAIN LIGHT DISTRIBUTION AND AN ADDITIONAL LIGHT DISTRIBUTION|

AT511761B1|2011-08-08|2014-02-15|Zizala Lichtsysteme Gmbh|LED LIGHT SOURCE MODULE FOR A VEHICLE HEADLAMP AND VEHICLE HEADLAMP AND VEHICLE LIGHT SYSTEM|

AT512246B1|2011-11-22|2014-02-15|Zizala Lichtsysteme Gmbh|LED PROJECTION MODULE AND HEADLIGHTS WITH MODULE|

AT512586B1|2012-02-24|2014-06-15|Zizala Lichtsysteme Gmbh|Lighting device for a motor vehicle and vehicle headlights|

AT513816B1|2012-12-20|2015-11-15|Zizala Lichtsysteme Gmbh|Light guide unit for a lighting unit of a headlamp and lighting unit and headlamp|

FR3025859A1|2014-09-15|2016-03-18|Valeo Vision|LUMINOUS MODULE SUBSTRATE WITH METALLIC TRACK FOR SHIELDING, THERMAL SCREEN AND / OR OPTICAL REFLECTOR|

CZ306483B6|2015-11-20|2017-02-08|Varroc Lighting Systems, s.r.o.|A lighting device, in particular the headlamp projector system for motor vehicles|

FR3047940B1|2016-02-18|2019-11-01|Koito Manufacturing Co., Ltd.|VEHICLE FIRE|

DE102017206817A1|2017-04-24|2018-10-25|Osram Gmbh|LIGHTING SYSTEM AND HEADLIGHTS|

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 Owner name: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT, DE Effective date: 20161014 |

2018-10-15| MM01| Lapse because of not paying annual fees|Effective date: 20180216 |

优先权:

申请号 | 申请日 | 专利标题

ATA206/2011A|AT510437B1|2011-02-16|2011-02-16|LED LIGHT MODULE AND VEHICLE HEADLIGHTS|ATA206/2011A| AT510437B1|2011-02-16|2011-02-16|LED LIGHT MODULE AND VEHICLE HEADLIGHTS|

US13/983,218| US9243767B2|2011-02-16|2011-12-13|LED light module|

EP11813523.5A| EP2676069B1|2011-02-16|2011-12-13|Led light module|

CN201180067832.XA| CN103518096B|2011-02-16|2011-12-13|Led lamp module|

PCT/AT2011/050038| WO2012109681A1|2011-02-16|2011-12-13|Led light module|

JP2013548701A| JP5768898B2|2011-02-16|2011-12-13|LED lamp module and vehicle headlight equipped with LED lamp module|

BR112013017449-8A| BR112013017449A2|2011-02-16|2011-12-13|led light module|

[返回顶部]