DE102018213219A1 - Vehicle tail light - Google Patents

Abstract

The rear light (10) comprises a housing (11) with: - at least one light source (20), - at least one optical element (25) arranged semi-reflectively along an incident direction of an incident beam (27) emitted by the light source, wherein the or each optical element (25) is inclined with respect to the direction of incidence and arranged to generate a reflected beam (29) forming a light zone in a first sector to perform a first optical function (F1); and - generates a transmitted beam (28) configured to form a light zone in a second sector of the luminaire different from the first sector and for generating a second optical function (F2) different from the first optical Function (F1) is different.

Description

The present invention relates to a vehicle tail lamp and a vehicle equipped with such a lamp.

A vehicle tail lamp conventionally includes a housing that includes a base and a disc that can be mounted to the base. Light sources are arranged in the housing to perform the various functions of the luminaire, such as the function of the direction indicator, a position light, a reversing light, etc. A light source, or a series of light sources, is usually provided for realizing these predetermined functions.

In addition, luminaires are increasingly being used to integrate new functions. Thus, the present taillights are not only light-signaling devices but can also perform more sophisticated functions. A tail lamp may be, for example, an audible reverse alarm control or a control alarm, for example, for the control of vehicle accessories, and so forth.

As a result, the luminaire structure is more complex and requires more components to be accommodated in the housing. In addition, these additional components increase the energy consumption of the luminaire and the heat generated.

It is therefore an object of the present invention to provide a vehicle rear light, which meets the current needs in terms of realizing features and functions, but allows a simple structure and low production costs and a controllable operation. The solution of this object is achieved by the features of claim 1.

• - mindestens eine Lichtquelle;
• - mindestens ein halbreflektierendes optisches Element, das entlang einer Einfallsrichtung eines von der Lichtquelle emittierten einfallenden Strahls angeordnet ist, wobei das optische Element eine erste Fläche auf der Einfallsseite und eine zweite Fläche parallel und gegenüber der ersten Fläche aufweist;
• - wobei das optische Element eine Mittelebene definiert, die in Bezug auf die Einfallsrichtung in einem Winkel geneigt ist, der ungleich Null ist und der kein rechter Winkel ist und so angeordnet ist, dass ein von dem optischen Element in einer Reflexionsrichtung reflektierter Strahl konfiguriert ist, um eine Lichtzone in einem ersten Sektor der erfindungsgemäßen Leuchte zu bilden, um eine erste optische Funktion zu ermöglichen; und
• - ein von dem optischen Element in einer Übertragungsrichtung übertragener Strahl konfiguriert ist, um eine Lichtzone in einem zweiten Sektor der Leuchte zu schaffen, der sich von dem ersten Sektor unterscheidet, um eine zweite optische Funktion zu ermöglichen, die sich von der ersten optischen Funktion unterscheidet.

More particularly, the invention relates to a vehicle tail lamp comprising a housing having a base and a disc which is mountable to the base. The following components can be provided in the housing:

• - At least one light source;
• at least one semi-reflective optical element disposed along an incident direction of an incident beam emitted from the light source, the optical element having a first surface on the incident side and a second surface parallel and opposite the first surface;
• the optical element defining a median plane which is inclined with respect to the direction of incidence at an angle which is non-zero and which is not a right angle and is arranged so that a beam reflected by the optical element in a reflection direction is configured, to form a light zone in a first sector of the luminaire according to the invention to allow a first optical function; and
• a beam transmitted from the optical element in a transmission direction is configured to provide a light zone in a second sector of the lamp different from the first sector to allow a second optical function different from the first optical function ,

Thanks to the embodiments of the luminaire according to the invention, a significant advantage is the fact that from a single light source or a single set of light sources two proper (regulatory) different optical functions of the lamp can be achieved. In particular, this enables a reduction in size, production costs, energy consumption and heat generated. Suitable means or means may be provided to enable the realization of these two different optical functions from the same light source in order to change the intensity, the color, the emission direction, etc.

The dependent claims 2 to 14 have advantageous developments of the lamp according to the invention to the content.

In particular, the invention provides that the luminaire can comprise a plurality of light sources. However, a single light source (or a single set of light sources) allows the two optical functions to be obtained via the reflected and transmitted beams. In the context of the invention, a group of light sources means a group of light sources which are preferably located in close proximity to one another in a particular area of the luminaire in order to together achieve a proper optical function of the luminaire and have the characteristics adapted to that purpose are. The light sources of the same set are preferably identical.

It is to be understood that "incident beam emitted from the light source" is not limited to a beam emitted directly from the light source. In contrast, various organs may be located along the path of the beam emitted directly from the light source to form the incident beam. According to a possible embodiment, the direction of incidence and the direction of transmission can be essentially brought together.

The optical element or elements may be made of a plastic material, for example Plexiglas® (polymethyl methacrylate). They can be colored. Preferably, the one or more half-reflecting optical elements transmit all wavelengths in transmission and in reflection.

It may be provided that the first surface of the or at least one optical element comprises a surface treatment capable of increasing the amount of reflected light in relation to the amount of light that would be reflected by the material forming the optical element. It can be a metallization. Of course, the amount of transmitted light must be sufficient to provide the second optical regulation function.

The first and the second sector of the luminaire may be located on the same surface of the luminaire. This configuration may require that a deflecting element of the reflected beam or the transmitted beam be provided. Alternatively, the first and the second sector of the luminaire can be arranged on separate surfaces of the luminaire.

According to a possible embodiment, one of the first and second sectors of the luminaire is located on the back of the luminaire, in the use position. In other words, this sector of the lamp is located at the height of the main wall of the rear window.

Further, one of the first and second sectors of the luminaire may be located on the outer side surface of the luminaire, in the use position.

According to a possible embodiment, the first optical function and / or the second optical function belong to the group which consists of the construction function, the power function, the traffic function (hazard warning function) and / or the side position function.

For example, the first optical function may be the overload function, and the second optical function may be the lateral position function. The reverse assignment is also conceivable.

According to a possible embodiment, the reflection direction is substantially orthogonal to the disc and corresponds to the longitudinal direction of the vehicle equipped with the luminaire and / or the transmission direction is substantially parallel to the disc and preferably corresponds to the transverse direction of the vehicle coinciding with the Luminaire is equipped.

The light source or light sources may be mounted on a plate mounted substantially parallel to the base so that its main emission axis is substantially orthogonal to the slice, and the light may further comprise means for deflecting the beam emitted directly from the source to form the incident beam and to orient it preferably parallel to the disk. This deflector may comprise a triangular prism. The main emission axis or the optical axis of the light source may be the axis of symmetry of a cone, a hemisphere or, more generally, the volume of light formed by the rays emitted by the light source.

The luminaire may further include a light diffuser disposed between the light source (s) and the optical element or the first optical element impinged by the incident beam. In this way, the virtual image formed by each reflection is homogenized, i. an observer does not see individual images of each of the point sources (typically LEDs) but a substantially uniformly illuminated surface.

It can be provided that the or at least one optical element and preferably all the optical elements is formed as a cuboidal plate, wherein the first and the second surface are substantially planar. In a variant it can be provided that the or at least one optical element and preferably all optical elements are formed as a curved plate, in which the first and the second surface are not flat. For example, all optical elements may be identical.

The middle plane of the or at least one optical element may be inclined with respect to the direction of incidence by an angle between 30 ° and 60 °, preferably between 40 ° and 50 °, for example of the order of 45 °. The person skilled in the art can adjust the value of this angle according to the desired effect, taking into account the optical properties of the material constituting the optical element, so that the phenomenon of total reflection does not occur which would prevent the obtaining of successive reflected images.

In one possible embodiment, the reflection and transmission directions are substantially orthogonal.

• - einen Strahl, der gemäß der Übertragungsrichtung durch die aufeinanderfolgenden optischen Elemente übertragen wird und konfiguriert ist, um die zweite optische Funktion nach dem Durchlaufen der aufeinanderfolgenden optischen Elemente zu erzeugen;
• - eine Mehrzahl von Strahlen, die von den aufeinanderfolgenden optischen Elementen in mindestens einer Reflexionsrichtung reflektiert werden, um so Lichtzonen zu bilden, die in der Einfallsrichtung unterschiedlich sind und die virtuellen Bildern entsprechen, die voneinander in der Reflexionsrichtung versetzt sind.

According to one embodiment, the luminaire comprises a plurality of semi-reflecting optical elements arranged successively and spaced along the direction of incidence with the optical elements arranged to form:

• a beam transmitted in accordance with the transmission direction by the successive optical elements and configured to generate the second optical function after passing through the successive optical elements;
• a plurality of beams reflected from the successive optical elements in at least one reflection direction so as to form light zones different in the incident direction and corresponding to the virtual images offset from each other in the reflection direction.

In operation, the lamp thus provides as many images of the light source - or set of light sources - as there are optical elements, these images being further displaced to give a depth effect which is of particular interest at the aesthetic level. Even if the sources are not active, the luminaire may have an attractive appearance due to the successive optical elements visible through the pane.

In addition to the aesthetic aspect, the fact of creating offset virtual images, starting from a single light source or a single set of light sources occupying a reduced area of the luminaire, allows the creation of an effective luminous area in dimensions larger than the dimensions of the light source or light source Light sources. In other words, the invention makes it possible to obtain increased visibility for third parties (thereby increasing safety) without increasing the number of light sources and thus the consumption of the luminaire. These sources can form the same optical function in the regulatory sense of the term, i. for example, a position light, a reversing light, etc.

Thus, in addition to generating the second optical function, the transmitted beam enables the formation of a plurality of reflected images.

By implementing a plurality of optical elements (i.e., at least two, and preferably at least three), the invention offers a number of important advantages. Inasmuch as each optical element results in obtaining a respective image, by taking advantage of the optical elements, it is possible to independently manage each of the images. It is thus possible to control the distances between the optical elements and the light attenuation between the successive images and to separate these two parameters.

According to a possible embodiment, the luminaire comprises a plate which is fastened substantially parallel to the base, wherein the optical element or the optical elements are arranged between the base and the disc and the transmission direction is substantially parallel to the disc. In addition, the luminaire may optionally include at least one additional light source mounted on the panel such that its main emission axis is substantially orthogonal to the panel and enters the space between two successive optical elements. This or these additional light sources may be configured to perform a third optical function.

It can be provided that the actual or effective dimension of the optical elements in a direction orthogonal to the direction of the reflection and the direction of the transmission starting from the first optical element hit by the incident beam decreases and preferably decreases regularly visual depth. "Effective dimension" refers to the operational dimension that leads to a visible image. Thus, it is possible to provide optical elements whose dimensions decrease, or optical elements having the same dimensions, but whose ends are more or less masked, so that the images obtained have more or less significant dimensions.

According to a possible embodiment, the middle planes of the optical elements are substantially parallel. In this case, the effect of the depth in one and the same reflection direction is obtained. Alternatively, it could be provided to tilt the average levels differently in order to obtain different effects in different viewing directions.

Advantageously, the luminaire is formed without a reflecting element - for example in the form of a mirror - which is arranged on the path of the incident beam between the light source and the optical element or the first optical element impinged by the incident beam (the reflecting element differs from the first optical element). By eliminating such a reflective element disposed in the optical path, the size of the luminaire is limited. In addition, such an element is superfluous because the successive reflections resulting in the generation of staggered images are obtained by the presence of a plurality of successive optical elements, not just an element.

The invention also relates to a vehicle, in particular a heavy one A vehicle, such as a truck, comprising at least one taillight / tail light, as previously described.

• 1 ist eine schematische Rückansicht eines Fahrzeugs, das mit einem Rücklicht/Rückleuchte gemäß einer Ausführungsform der Erfindung ausgestattet ist;
• 2a und 2b sind schematische Darstellungen von Lichtstrahlen von einer Lichtquelle, in einer Rückleuchte gemäß verschiedenen Ausführungsformen, wobei die Leuchte ein oder mehrere halbreflektierende Elemente umfasst;
• 3 ist eine perspektivische Ansicht einer Leuchte gemäß einer Ausführungsform der Erfindung;
• 4 ist eine teilweise und teilweise weggeschnittene Ansicht einer Leuchte gemäß 3;
• 5a und 5b stellen teilweise und schematisch die Leuchte von 3 gemäß zwei verschiedenen Ausführungsformen dar;
• 6 zeigt eine alternative Ausführungsform eines halbreflektierenden optischen Elements.

Several possible embodiments of the invention will now be described by way of non-limitative example with reference to the accompanying drawings:

• 1 Fig. 12 is a schematic rear view of a vehicle equipped with a tail / tail lamp according to an embodiment of the invention;
• 2a and 2 B 12 are schematic representations of light rays from a light source in a tail lamp according to various embodiments, the light comprising one or more semi-reflective elements;
• 3 is a perspective view of a lamp according to an embodiment of the invention;
• 4 is a partially and partially cutaway view of a luminaire according to 3 ;
• 5a and 5b partially and schematically represent the light of 3 according to two different embodiments;
• 6 shows an alternative embodiment of a semi-reflective optical element.

1 represents a vehicle 1 that with two taillights / taillights 10 Is provided. In particular, it may be a heavy vehicle such as a truck having at the front a tractor comprising a cab (not shown) and the one at the rear, a semi-trailer or trailer 2 for receiving objects or goods.

In the embodiment shown, the semi-trailer 2 designed in the form of a semi-trailer, with wheels 3 is provided, and which is mechanically coupled to the tractor and is electrically connected thereto. Alternatively, the vehicle could 1 be a pickup truck, with a box 2 on the same frame as the cabin is mounted and does not rest on the frame. The invention also finds application in other types of vehicles.

The semi-trailer or box 2 is generally parallelepipedic in shape and has a posterior surface 4 , an upper surface 5 and side surfaces 6 , One light each 10 is on the back surface 4 in its lower part near each of the side surfaces 6 attached.

The left and the right light 10 are symmetrical with respect to the median longitudinal plane P of the vehicle 1 arranged.

As in the 3 and 4 illustrated, includes the lamp 10 a housing 11 that has a base (housing base) 12 and a slice 13 includes that at the base 12 can be mounted. The housing 11 contains a plurality of light sources 20 , which can typically be LED (or DLED, light emitting diode).

The base 12 includes means for attachment to the vehicle 1 and electrical connection means for supplying the light sources 20 through the electric vehicle network. You slice 13 limited to the base 12 an internal volume in the housing 11 , which is preferably sealed to the light sources 20 to protect. The disc 13 thus forms a cover / cover for the housing 11 and also allows the passage of the light sources 20 emitted rays The disc 13 can be made by molding a transparent, colorless or colored plastic material. It may also include at certain suitable locations areas designed to deflect the light rays.

The lamp 10 also has a plate 14 on, which is essentially parallel to the base 12 attached to this, which forms a support on which the light sources 20 are attached, and which also has a printed circuit or a printed circuit board for forming the electronic circuit of the lamp 10 forms. The light sources 20 are on the plate 14 mounted so that its main emission axis 21 essentially orthogonal / perpendicular to the disk 13 is.

The lamp 10 can also be a reflector element 15 between the plate 14 and the disc 13 for acting on the light source 20 have emitted light to obtain the required properties. In 4 is the reflector element 15 for better visibility of the on the plate 14 mounted light sources 20 partially cut off.

• - eine Gruppe 22a von LED, deren Funktion später erläutert wird;
• - eine Gruppe 22b von LEDs, die einen Fahrtrichtungsanzeiger bilden;
• - eine Gruppe 22c von LEDs, die ein Rückfahrlicht bilden;
• - eine Gruppe 22d von LEDs, die eine hintere Positionslampe bilden;
• - eine Gruppe von LEDs, die eine Nebellampe bilden.

The housing 11 contains several sentences 22 from light sources 20 , each having an optical function of the luminaire 10 correspond. In the embodiment shown, starting from a side surface 6 of the vehicle 1 in the direction of the longitudinal center plane P in the mounted position of the lamp 10 , for example:

• - a group 22a of LED, whose function will be explained later;
• - a group 22b of LEDs forming a direction indicator;
• - a group 22c of LEDs that form a reversing light;
• - a group 22d of LEDs forming a rear position lamp;
• - a group of LEDs that form a fog lamp.

In an embodiment not shown, the light could 10 also comprise a set of LEDs which form a stop light.

A "set of light sources" is understood to mean a group of light sources which are preferably located in a specific area of the luminaire 10 are arranged together close to together a regulatory optical function of the luminaire 10 and have the characteristics adapted to this purpose.

The optical principle used by the invention will be described with reference to FIG 2a which is a schematic diagram. The invention implements one or more semi-reflective optical elements 25 in the path of an incident beam 27 are arranged by a light source 20 comes.

It should be understood that "beam" refers to the amount of light rays generated by a source in a given direction. In the 2a and 2 B each line represents the middle axis of the corresponding beam.

• - dass es einen Übertragungsstrahl 28 in einer Übertragungsrichtung durch das optische Element 25 bildet;
• - und einen von dem optischen Element 25 in einer Reflexionsrichtung reflektierten Strahl bildet.

As in 2a can be seen, the optical element has 25 a first surface 23 on the incidence side and a second surface 24 parallel to and opposite the first surface 23 on. In addition, the optical element defines 25 a median plane P25 that are in relation to the direction of the incident beam 27 at an angle α not equal to zero and not inclined at right angles. The optical element 25 , especially the angle α , is arranged like this:

• - that there is a transmission beam 28 in a transmission direction through the optical element 25 forms;
• - and one of the optical element 25 forms reflected beam in a reflection direction.

So it goes without saying that the angle α must be chosen so that a total reflection of the incident beam 27 on the optical element 25 does not occur.

For an observer 31 seems the reflected beam 29 from a virtual picture 30 get. This reflected beam 29 forms a light zone in a first sector of the luminaire 10 and allows a first optical function of the luminaire 10 to create. Regarding the transmission beam 28 it forms a light zone in a second sector of the luminaire 10 which differs from the first sector and makes it possible to provide a second optical function different from the first optical function.

The optical element or the optical elements 25 are inside the light 10 attached by any suitable mount.

• - Auf der linken Seite eine Mehrzahl von optischen halbreflektierenden Elementen 25 (zum Beispiel drei an der Zahl, was ist nicht beschränkend ist), die in der in 2b schematisch gezeigten Anordnung vorgesehen sind. In montierter Position befinden sich diese optischen Elemente an der Außenseite der Leuchte 10 und ermöglichen beispielsweise die Funktion der Seitenposition und der Staufunktion (Warnblinkfunktion), wie später zu erläutern sein wird;
• - und auf der rechten Seite eine Mehrzahl von halbreflektierenden optischen Elementen 25, die sich in der montierten Position auf der Innenseite der Leuchte 10 befinden und es ermöglichen, beispielsweise die Funktion der hinteren Position 22d auszuführen. Diese optischen Elemente sind in einer Anordnung vorgesehen, der der Aneinanderreihung der Anordnung von 2b und einer umgekehrten Anordnung zu der von 2b, und zwar symmetrisch relativ zu einer Ebene P', senkrecht zu der Achse des einfallenden Strahls 27 entspricht.

In the 3 illustrated light 10 includes:

• On the left side a plurality of optical semi-reflective elements 25 (for example, three in number, which is not restrictive), which are in the in 2 B are shown schematically shown arrangement. In mounted position, these optical elements are located on the outside of the luminaire 10 and allow, for example, the function of the side position and the stowing function (hazard warning function), as will be explained later;
• - And on the right side a plurality of semi-reflective optical elements 25 in the mounted position on the inside of the lamp 10 and allow, for example, the function of the rear position 22d perform. These optical elements are provided in an arrangement corresponding to the juxtaposition of the array of 2 B and a reverse arrangement to that of 2 B , symmetrical relative to a plane P ', perpendicular to the axis of the incident beam 27 equivalent.

Of course, a taillight according to the invention could comprise only one of these arrangements. In addition, it could be just on the left side of the lamp only an optical element 25 instead of a sequence of optical elements 25 exhibit.

• - dass sie einen Übertragungsstrahl 28 in einer Übertragungsrichtung durch die aufeinanderfolgenden optischen Elemente 25 bilden; und
• - eine Mehrzahl von durch die von den aufeinanderfolgenden optischen Elementen 25 in mindestens einer Reflexionsrichtung reflektierten Strahlen 29 bilden.

According to the arrangement of 2 B includes the lamp 10 a plurality of semi-reflective optical elements 25 which are arranged sequentially and along an incident direction of one of the light source 20 emitted incident beam 27 are spaced. Every optical element 25 has a first surface 23 on the incidence side and a second surface 24 parallel to and opposite the first surface 23 on. In addition, each optical element defines 25 a middle level P25 which are at an angle with respect to the direction of incidence α inclined, which is not zero and not rectangular. The optical elements 25 , in particular the angle or the angles a, are arranged as follows:

• - that they have a transmission beam 28 in a transmission direction through the successive optical elements 25 form; and
• a plurality of those of the successive optical elements 25 reflected in at least one reflection direction rays 29 form.

The reflected rays 29 form light areas 32 ( 5a and 5b) that differ in the direction of arrival and the virtual images 30 correspond to each other in the direction of reflection.

For the viewer 31 this results in a visual effect of different depths of the images 30 ,

Specifically, the optical elements 25 have the shape of a cuboidal plate, in which the first and the second surface 23 . 24 are essentially flat. Alternatively, as in 6 represented, the optical elements 25 in the form of a curved plate, the first and second surfaces 23 . 24 are not even.

The optical elements 25 can be made of a plastic material, for example Plexiglas® (polymethyl methacrylate).

For example, the amount of energy passing through an optical element 25 will be on the order of 95% of the energy it is at its first surface 23 receives. In other words, the reflected energy may be on the order of 5% of that of the optical element 25 on his first page 23 received energy lie. It can thus be seen that it is possible to provide a relatively large number of successive optical elements and to maintain a significant amount of light after the last optical element 25 is transmitted in the series. For example, the light includes 10 at least three optical elements 25 , At least some of the optical elements 25 may have surface treatments, for example a metallization on the first surface 23 so as to increase the amount of reflected light.

The angle α can be between 30 ° and 60 °, preferably between 40 ° and 50 ° and must be chosen so that a total reflection does not occur. In the embodiment shown by way of example, the angle is α in the order of 45 °. In this case, the reflection direction and the transmission direction form an angle of 90 °.

According to one embodiment ( 2a) is a single optical element 25 intended. In this case, the first optical function of the light 10 through a single light zone 32 formed by a single reflected beam 29 is formed. It is possible to provide additional means which deviate from the optical element to this light zone 32 to modify, in particular, the effective area to enlarge, for the viewer 31 is visible (light guide, diffuser, etc.).

According to another embodiment ( 2 B and 4 ) are several optical elements 25 intended. In this case, the first optical function of the lamp 10 through several light zones 32 formed by several successive reflected rays 29 be formed. It can be expected that all the optical elements 25 are identical, their center planes are inclined at the same angle a with respect to the direction of incidence, and that the optical elements 25 are regularly spaced apart along the direction of incidence. This leads to a regular visual effect for the viewer 31 , However, this is not limitative, and various optical elements could be provided and / or tilted differently and / or at a different distance to modulate the effect obtained.

According to a possible embodiment, as in 4 represented, emit the light sources 20 leading to the arrangement 22a belong directly to an emitted beam 26 along the main transmission axis 21 that is substantially orthogonal to the disk 13 is. The lamp 10 has a facility 35 for distracting the directly from the light source 20 emitted beam 26 on to the incoming beam 27 to build. This deflecting agent 35 can be a triangular prism.

The arrangement is oriented so that the incident beam 27 parallel to the disc 13 is aligned, preferably in the transverse direction Y of the vehicle 1 that with the light 10 Is provided. The optical elements 25 are between the base 12 and the disc 13 arranged so that the direction of the transmitted beam 28 also substantially parallel to the transverse direction Y is. With an angle a of 45 °, the reflection direction of the reflected rays 29 essentially orthogonal to the disk 13 and corresponds to the longitudinal direction X of the vehicle 1 that with the light 10 equipped, being to the rear of the vehicle 1 is directed.

According to a possible embodiment, the luminaire comprises 10 furthermore a light-scattering element 36 that between the light sources 20 and the first optical element 25 is arranged, on which the incident beam 27 meets. This light-scattering element 36 can be in the beam path of the directly from the light sources 20 emitted beam 26 be arranged, preferably between the light sources 20 and the deflection means 35 of the beam.

It can also be a cover 37 to the right of the light sources 20 in that direction (- X ) may be provided to the light sources 20 , the beam emitted directly from them 26 and the plate 14 cover. As in 3 The cover can be shown 37 have the form of a light ray impermeable plate or block, with windows 38 on the right side of the optical elements 25 are provided to the reflected rays 29 to pass, but this is not restrictive. For example, you could have a single window to the right of the optical elements 25 (instead of separate windows separated by parts of the cover).

• - der oder die reflektierten Strahlen 29 bilden eine oder mehrere Lichtzonen 32 in einem ersten Sektor der Leuchte 10. Dieser erste Sektor befindet sich auf der Rückseite 40 der Leuchte, d.h. der Seite der Leuchte, die sich in einer Ebene (Y, Z) in einer Position befindet, die an dem Fahrzeug 1 angebracht ist und die nach hinten gerichtet ist, vorzugsweise auf der Außenseite. Somit wird eine erste optische Funktion F1 der Leuchte 10 erzeugt, hier die Seitenpositionsfunktion;
• - der transmittierte Strahl 28 bildet eine Lichtzone 33 in einem zweiten Sektor der Leuchte 10, der sich von dem ersten Sektor unterscheidet, wobei sich dieser zweite Sektor auf der äußeren Seitenfläche 41 der Leuchte 10 befindet (d.h. die Seite der Leuchte, die sich in einer Ebene (X, Z) in einer am Fahrzeug montierten Position befindet und die nach außen weist). Es wird somit eine zweite optische Funktion F2 erzeugt, die sich von der ersten optischen Funktion F1 unterscheidet. Die zweite optische Funktion F2 kann hierbei die Staufunktion/Warnblinkfunktion sein.

Thanks to the invention allows one and the same arrangement 22a of LEDs, two regulatory optical functions of the luminaire 10 to fulfill. In the embodiment exemplified, the following is provided:

• - the one or more reflected rays 29 form one or more light zones 32 in a first sector of the luminaire 10 , This first sector is on the back 40 the lamp, ie the side of the lamp which is in a plane (Y, Z) in a position on the vehicle 1 is attached and which is directed to the rear, preferably on the outside. Thus, a first optical function F1 the light 10 generates, here the page position function;
• - The transmitted beam 28 forms a light zone 33 in a second sector of the luminaire 10 which differs from the first sector, this second sector being on the outer side surface 41 the light 10 (ie the side of the luminaire that is in a plane ( X . Z ) is in a vehicle-mounted position and facing outward). It thus becomes a second optical function F2 generated, differing from the first optical function F1 different. The second optical function F2 this can be the accumulation function / hazard warning function.

It should be noted that there must be no LED or LED group, only the realization of the second optical function F2 serves. In the exemplary embodiment, no LED or set of LEDs is in close proximity to the outer side surface 41 the light 10 provided for performing the hazard warning function.

5b partially illustrates the depth of the visual effect of the luminaire 10 according to the embodiment of 4 , Each reflected beam 29 creates a bright surface 32 of the sentence 22a the light sources 20 , which is homogenized, here a luminous rectangle, thanks to the light scattering element 36 , These illuminated areas 32 are in the direction of incidence (transversal Y ) and appear in the direction of reflection (Longitudinale X ) offset from each other. It can be seen that the group of bright areas 32 Dimensions in one plane ( X . Y ), which is significantly larger than the dimensions in the plane ( X . Y ) of the arrangement 22a the corresponding light sources 20 , Thus, it is possible to enlarge the illuminated effective area without having more light sources 20 be needed, reducing the visibility of the vehicle 1 that is, safety is improved without increasing energy consumption.

It should be noted that this visual effect of depth, which is particularly interesting from an aesthetic point of view, can be achieved without the use of a mirror or other reflective element that differs from the optical elements and on the path of the incident beam between the light source and the first optical element, which is incident on the incident beam, is arranged.

5a shows a variant of 5b in which case the luminaire 10 no light scattering element 36 having. In this case, the bright areas 32 not uniformly lit, but includes different images 30 and essentially point sources of light 20 ,

In 5b are the bright areas 32 shown with substantially identical brightnesses. Such an effect can be obtained when the amount of light transmitted by each optical element is considerable and when the number of successive optical elements is limited. In 5a on the other hand are the bright areas 32 with decreasing magnitudes because of the decrease in the amount of light transmitted after passing through the successive optical elements.

In order to improve the visual depth effect, it could be provided that the optical elements 25 in the Z direction have diminishing dimensions (Z = vertical direction of the vehicle 1 that with the light 10 is provided), being away from the light source 20 on the transmitted beam path 28 are. It would then give an additional effect of perspective, with bright areas 32 that have upper and lower edges along converging lines and are no longer substantially parallel. The same effect could be with optical elements 25 be achieved with the same dimensions in the Z direction, but with windows 38 the cover 37 with decreasing heights, for example with regularly decreasing dimensions.

Furthermore, it may be provided in an embodiment, not shown, that some of the light sources 20 on the plate 14 are attached so that their main transmission axis 21 in the space between two consecutive optical elements 25 passes. In this way, these light sources 20 perform an additional optical function without the overall size of the luminaire 10 to increase. Alternatively, an opaque wall could exist between two consecutive optical elements 25 be provided to the formed light areas 32 better visually separate.

Although in the preceding paragraphs with reference to the 4 and 5a . 5b the invention has been described in a configuration comprising a plurality of optical elements 25 covers, the light could be 10 comprise only one optical element having a transmitted beam 28 and a single reflected beam 29 generated. In this case, the light would be 10 do not provide any optical depth effect.

Thus, the invention provides a significant improvement over the prior art by providing a high performance luminaire but having a simple structure and low manufacturing and operating costs that can be controlled. When multiple optical elements are provided, this luminaire also provides improved aesthetics and safety. It is understood that the invention is not limited to the embodiments described above by way of example, but includes all technical equivalents and variants of the described means and their combinations.

In summary, it can be stated:

• - mindestens einer Lichtquelle 20;
• - mindestens einem optischen Element 25, das entlang einer Einfallsrichtung eines von der Lichtquelle emittierten einfallenden Strahls 27 halbreflektierend angeordnet ist, wobei das oder jedes optische Element 25 bezüglich der Einfallsrichtung geneigt und so angeordnet ist, dass es
• - einen reflektierten Strahl 29 erzeugt, der eine Lichtzone in einem ersten Sektor ausbildet, um eine erste optische Funktion F1 durchzuführen; und
• - einen transmittierten Strahl 28 erzeugt, der konfiguriert ist zum Bilden einer Lichtzone in einem zweiten Sektor der Leuchte, der verschieden von dem ersten Sektor ist und zum Erzeugen einer zweiten optischen Funktion F2 vorgesehen ist, die sich von der ersten optischen Funktion F1 unterscheidet.

The tail light 10 includes a housing 11 With:

• - At least one light source 20 ;
• - At least one optical element 25 along an incident direction of an incident beam emitted from the light source 27 semi-reflecting, wherein the or each optical element 25 inclined with respect to the direction of incidence and arranged so that it
• - a reflected beam 29 which forms a light zone in a first sector to produce a first optical function F1 perform; and
• - a transmitted beam 28 configured to form a light zone in a second sector of the luminaire different from the first sector and to generate a second optical function F2 is provided, differing from the first optical function F1 different.

In addition to the above written disclosure is hereby supplementing the disclosure of the drawings of the invention in the 1 to 6 Referenced.

LIST OF REFERENCE NUMBERS

1

vehicle

2

Semitrailer, container, semi-trailer, box

3

bikes

4

Rear surface

5

Upper surface

6

faces

10

Vehicle tail light / tail light / tail light / vehicle tail light

11

casing

12

Base / housing base

13

Pane / glass pane

14

plate

15

Reflector element / Reflection device

20

light source

21

Main emission axis

22, 22a, 22b

Set of light sources 20 / arrangement of light sources

23

First surface

24

Second surface

25

Optical element

26

Main emission axis

27

Incident beam

28

Übertragunsstrahl

29

Reflected beam

30

Virtual pictures

31

observer

32

Bright / lighted area

33

light zone

35

Deflection device / deflection element

36

Light-scattering element

37

cover

38

window

40

back

41

side surface

F1, F2

features

α

angle

P25

midplane

Claims (15)

A tail light (10) of a vehicle (1) comprising a housing (11) having a base (12) and a washer (13) adapted for attachment to the base (12) and provided in the housing (11) is: - At least one light source (20); at least one semi-reflective optical element (25) arranged along an incident direction of an incident beam (27) emitted by the light source (20), the optical element (25) having a first surface (23) on the incident side and a second surface (24) parallel and opposite the first surface (23), the optical element (25) defining a median plane (P25) inclined with respect to the direction of incidence by an angle (a) other than zero and not a right angle is and is arranged so that: a beam (29) is reflected by the optical element (25) in a direction of reflection and is configured to form a light zone (32) in a first sector of the tail lamp (10) to produce a first optical function (F1) provide; and - A beam (28) is transmitted through the optical element (25) in a transmission direction and is configured to form a light zone (33) in a second sector of the tail lamp (10), which differs from the first sector to a second optical function (F2) different from the first optical function (F1). Rear light after Claim 1 , characterized in that the first and the second sector of the tail lamp are arranged on the same surface of the tail lamp (10). Rear light after Claim 1 , characterized in that the first and the second sector of the tail lamp are arranged on separate surfaces (40, 41) of the tail lamp (10). Taillight after one of the Claims 1 to 3 , characterized in that one of the first and second sectors of the tail lamp is on the rear side (40) of the tail lamp (10), in the position of use. Taillight after one of the Claims 1 to 4 characterized in that one of the first and second sectors of the tail lamp is located on the outer side surface (41) of the tail lamp (10), in the position of use. Light according to one of the Claims 1 to 5 , characterized in that the first optical function (F1) and / or the second optical function (F2) belongs to the group comprising a storage function and lateral position function. Light according to one of the Claims 1 to 6 , characterized in that the direction of reflection is substantially perpendicular to the writing (13) and corresponds to the longitudinal direction (X) of the vehicle (1) provided with the lamp (10) and / or the direction of transmission substantially parallel to the disk ( 13) and preferably corresponds to the transverse direction (Y) of the vehicle (1) equipped with the lamp (10). Light according to one of the Claims 1 to 7 characterized in that the light source (s) (20) are mounted on a plate (14) substantially parallel to the base (12) so that its main emission axis (21) is substantially perpendicular to the disc (13). and that the lamp (10) further comprises a deflector (35) for the beam (26) transmitted directly from the light source (20) from the light source (20) to form the incident beam (27) and around it preferably parallel to the disc (13) to align. Light according to one of the Claims 1 to 7 characterized in that it comprises a light diffuser (36) interposed between the light source (s) (20) and the optical element (25) or the first optical element (25) impinged by the incident beam (27), is arranged. Light according to one of the Claims 1 to 9 , characterized in that the or at least one optical element (25) is designed in the form of a cuboidal plate, wherein the first and the second surface (23, 24) are substantially planar. Light according to one of the Claims 1 to 10 characterized in that the median plane (P25) of the or at least one optical element (25) is inclined with respect to the direction of incidence at an angle (α) between 30 ° and 60 °, preferably between 40 ° and 50 °, and in particular is about 45 °. Light according to one of the Claims 1 to 11 , characterized in that a plurality of optical semi-reflective elements (25) are provided, which successively and spaced along the direction of incidence, the optical elements (25) , wherein the optical elements (25) are arranged to form a transmitted beam (28) in the transmission direction through the successive optical elements (25) and are configured to pass the second optical function (F2) after passing through the optical elements (25) to meet successive optical elements (25); - That they form a plurality of reflected beams (29) through the successive optical elements (25) in at least one reflection direction to form in the direction of incidence different light zones (32) corresponding to virtual images (30) in the reflection direction to each other are offset. Rear light after Claim 12 , characterized in that the middle planes (P25) of the optical elements (25) are substantially parallel. Taillight after one of the Claims 1 to 13 , characterized in that it is free of reflective elements which are located in the path of the incident beam (27) between the light source (20) and the optical element (25) or the first optical element (25) to which the incident beam ( 27) meets are arranged. Vehicle (1), in particular heavy vehicle such as a truck, characterized in that it comprises at least one tail lamp (10) according to one of the preceding claims.

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