DE102015210372A1 - Signal light module for a motor vehicle - Google Patents

Signal light module for a motor vehicle

Info

Publication number
DE102015210372A1
DE102015210372A1 DE102015210372.2A DE102015210372A DE102015210372A1 DE 102015210372 A1 DE102015210372 A1 DE 102015210372A1 DE 102015210372 A DE102015210372 A DE 102015210372A DE 102015210372 A1 DE102015210372 A1 DE 102015210372A1
Authority
DE
Germany
Prior art keywords
light
signal light
coupling
characterized
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE102015210372.2A
Other languages
German (de)
Inventor
Matthias Gebauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automotive Lighting Reutlingen GmbH
Original Assignee
Automotive Lighting Reutlingen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automotive Lighting Reutlingen GmbH filed Critical Automotive Lighting Reutlingen GmbH
Priority to DE102015210372.2A priority Critical patent/DE102015210372A1/en
Publication of DE102015210372A1 publication Critical patent/DE102015210372A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235Light guides
    • F21S43/247Light guides with a single light source being coupled into the light guide
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14Light emitting diodes [LED]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235Light guides
    • F21S43/236Light guides characterised by the shape of the light guide
    • F21S43/237Light guides characterised by the shape of the light guide rod-shaped
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235Light guides
    • F21S43/242Light guides characterised by the emission area
    • F21S43/245Light guides characterised by the emission area emitting light from one or more of its major surfaces

Abstract

Disclosed is a signal light module for a motor vehicle, which has a light guide, a light source and a coupling optics. The module is characterized in that the coupling optics has an optically effective surface in the form of a lateral surface of a general cylinder. The light source is disposed on an axis of the cylinder and its main radiation direction is directed to the optically effective surface. These parallelized from the light source incident light only in planes that are perpendicular to the cylinder axis, and in planes that are parallel to the cylinder axis, it does not seem parallelizing. The signal light module has a homogenizer which does not change a parallelism of the propagation directions of the light in the planes perpendicular to the cylinder axis and homogenizes a distribution of the propagation directions of the light in the plane parallel to the cylinder axis. The light guide is arranged so that it decouples light incident on deflecting elements from the homogenizer.

Description

  • The present invention relates to a signal light module according to the preamble of claim 1. Such a signal light module is known from US 7 111 970 and has a light guide with an elongated light exit surface in comparison to its thickness and a rear side opposite the light exit side with deflecting elements and a light source and a coupling optics which is arranged in a light bundle emanating from the light source. The coupling optics here is a concave depression in a narrow side of the light guide.
  • Signal light modules for motor vehicles are often arranged in lighting devices which have an at least partially arrow-shaped outer contour. This is true for some rear lights, but especially for many headlights. The light guides of the signal light modules then also frequently have an arrow shape following this outer contour. Previously used light guides are either round, rod-shaped and relatively efficient, but not flat (see for example DE 10 2007 023 076 A1 ), or they possess (like the object of the US 7 111 970 ) a flat light exit surface with small decoupling elements. These items are not very efficient. An efficiency is here understood as the proportion of the light of a light source which ultimately contributes to the generation of the desired signal light distribution. Examples of signal light distributions are brake light, tail light, flashing light and daytime running light, without this enumeration being meant conclusively.
  • The present invention differs from the prior art according to the US 7 111 970 By the characterizing features of claim 1. These provide that the coupling optics has an optically effective surface, which is a lateral surface of a general cylinder, wherein the light source is disposed on an axis of the general cylinder and their main radiation direction perpendicular away from the axis and on the optically effective surface is directed, wherein the optically effective surface is shaped such that it parallelises light incident from the light source in planes perpendicular to the cylinder axis, and not parallelized in planes parallel to the cylinder axis, and wherein the signal light module has a homogenizer, which is arranged in the bundle of outgoing light from the optically active surface and is adapted not to change a parallelism of the propagation directions of the light in the plane perpendicular to the cylinder axis planes and a distribution of the propagation directions of the light in de n to homogenize parallel to the cylinder axis planes lying, wherein the light guide is arranged relative to the homogenizer so that it can leak from the homogenizer forth on the deflection elements incident light on the light exit side.
  • Through these features, the light of the light source is coupled out efficiently and homogeneously over the entire light exit surface, so that the light exit surface appears uniformly bright to a viewer.
  • A preferred embodiment is characterized in that the homogenizer consists of an air gap between the coupling optics and the light guide and a light mixer in the form of a plurality of scattering centers.
  • It is also preferred that the scattering centers are arranged on the light exit surface of the coupling-in optical system delimiting the air gap.
  • A further preferred refinement is characterized in that scattering centers are arranged in the light entry surface of the light guide delimiting the air gap.
  • It is also preferable that the scattering centers are cylinders.
  • Furthermore, it is preferred that the coupling optics is a transparent solid.
  • A further preferred embodiment is characterized in that the optically effective surface has a guide curve which has a convex lens profile in a central region whose focal line coincides with the cylinder axis.
  • It is also preferred that the central region is bounded by side walls which protrude so far in the direction of the light source that they comprise as far as possible the complete light emitted by the light source into a half-space.
  • Furthermore, it is preferred that the coupling-in optics in the main transporting direction of the light in the coupling-in optical system be so long that at least part of the light experiences not only one but a plurality of total internal reflections at the front side and at the rear side of the coupling-in optical system.
  • A further preferred embodiment is characterized in that the coupling unit is a concave mirror reflector.
  • It is also preferable that the coupling unit is a converging lens.
  • Further advantages will become apparent from the following description, the drawings and the dependent claims. It is understood that the above and the still to follow explanatory features are usable not only in the combination given, but also in other combinations or alone, without departing from the scope of the present invention.
  • Embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description.
  • Show, in schematic form:
  • 1 shows a front view of a left front headlamp;
  • 2 the signal light module from the 1 in a plan view from above;
  • 3 a side view of a light guide of the signal light module;
  • 4 an enlarged view of the side view of the coupling optics from the 3 ;
  • 5 an enlarged view of the top view of the coupling optics from the 2 ;
  • 6 an embodiment of a homogenizer;
  • 7 a profile of the brightness along a light exit surface of a light guide having no homogenizer;
  • 8th a profile of the brightness along a light exit surface of a light guide for an inventive, having a homogenizer signal light module;
  • 9 an embodiment of a light guide;
  • 10 a concave reflector as an embodiment of a coupling unit according to the invention; and
  • 11 a converging lens as an embodiment of a coupling unit according to the invention.
  • In this case, the same reference numerals in different figures denote the same or at least functionally comparable elements. In detail, the shows 1 a front view of a left front headlight 10 with a high beam module 12 , a low beam module 14 and a signal light module 16 of which in the 1 the light exit surface of a light guide 18 you can see. The x-direction is parallel to a longitudinal axis of the vehicle, while the y-direction is parallel to a transverse axis and thus parallel to the horizon and the z-direction parallel to a vertical axis and thus parallel to a vertical. These directions apply to all figures of this application. The light guide is arranged lying horizontally in this embodiment, with its elongated area light exit surface.
  • The 2 shows the signal light module from the 1 in a top view from above.
  • The light guide of the signal light module has an elongated light exit surface compared to its thickness d 20 and a rear side opposite the light exit side 22 with deflecting elements 23 on. The deflecting elements are prisms here. The description as elongated is intended here to mean that the length of the light guide, which extends here in the xy plane, at least 10 times as large as its thickness d, which corresponds to the distance of the light exit surface of the opposite rear side.
  • The signal light module has a light source 24 and a coupling optics 26 which is arranged in a light beam emanating from the light source.
  • The coupling optics here is a transparent solid, which is a separate component from the light guide and that of the light guide through an air gap 28 is arranged separately. At least one of the two boundary surfaces delimiting the air gap, of which one interface is a light exit surface of the coupling optics and of which the other interface is a light entry surface of the light guide, forms a homogenizer, which will be explained in more detail below.
  • The 3 shows a side view of the light guide, the viewer looks across the light exit direction on the light exit side of the light guide. A comparison of 2 and 3 shows in particular that the coupling optics in the plane parallel to the xy plane according to 2 has a different contour than in the plane parallel to the xz plane 3 ,
  • 4 shows an enlarged view of the side view of the coupling optics 26 from the 3 , and 5 shows an enlarged view of the top view of the coupling optics 26 from the 2 ,
  • The 5 in particular, shows an imaginary axis 30 a cylinder on which a definition of an optically effective surface of the coupling optics 26 refers. The coupling optics has an optically effective surface 32 , which is a lateral surface of a general cylinder.
  • A general cylinder arises from the fact that a plane curve along a straight line, the not included in the plane of the curve is shifted to a certain distance. Any line parallel to it can be considered as the axis of the cylinder. Each two corresponding points of the original curve and the shifted curve can be connected by a route. The totality of these parallel sections forms the associated cylinder surface. A straight line on the cylinder is called generatrix or surface line.
  • The 4 shows the origin curve, also referred to as a guide curve.
  • The light source is on an axis 30 of the general cylinder, and the main radiation direction of the light source 24 leads vertically from the axis 30 away and is directed to the optically effective surface. The optically effective surface 32 is shaped to parallelize incident light from the light source in first planes perpendicular to the cylinder axis, and not to parallelize in second planes parallel to the cylinder axis. The first levels in the figures are the (vertical) xz-planes. 4 illustrates the parallel orientation of the light propagating in these planes. The second levels in the figures are the (horizontal) xy planes. 5 illustrates the non-parallel orientation of the light propagating in these planes.
  • For the efficiency of such a horizontally arranged light guide 18 It is important that the light rays in the first (vertical) planes run as parallel as possible in the same direction, and that they run in the second (horizontal) planes with the most homogeneous directional distribution around the deflection prisms 23 in the back 22 of the light guide 18 illuminate as evenly as possible. In order to parallelize the light in the first planes, the optically effective surface in these (vertical) xz planes has the contour shown there as a guide curve. This is characterized by being in a central area 32.z has a convex lens profile whose focal line preferably coincides with the cylinder axis. The light source is thus arranged on the focal line. That from the light source 24 The light entering the coupling optics via the lens profile is therefore aligned in parallel.
  • In order to couple as much light as possible from the light source, the central area becomes sidewalls 32.s limited, which protrude so far in the direction of the light source that they include as possible the complete light emitted by the light source in a half-space. This light is therefore, if it is not already coupled via the central lens profile, broken over the side surfaces in the coupling optics. The side surfaces are shaped accordingly. In particular, they have an inclination to the incident light at which the light is coupled in (and not reflected). This light then strikes an outer wall 32.a that are in the plane of 4 is almost parabolic shaped and therefore this light also largely parallelized by total internal internal reflections.
  • This in the 4 shown contour is extruded in the horizontal, so to speak along a generating line. An extrusion is understood here to mean a movement in space that, when designed from an object with n dimensions, creates an object with n + 1 dimensions. By extruding a dot, a line is created. Extruding a line creates an area. Extruding a surface creates a body.
  • 5 shows from the extrusion of the in the 4 illustrated contour resulting rectilinear boundary. Overall, this results in a coupling surface, which has a cylindrical shape with the described and in the 4 has visible guide curve.
  • Due to the straight line of the generators 30 the light enters in a (horizontal) xy plane, as in the 5 is shown with a change in direction in the coupling optics, which is determined by the different refractive indices of the air and the material of the coupling optics. This results in a reduction of the opening angle of the light bundle, in particular dependent on the material of the coupling optics, upon entry into the coupling optics. Further parallelization, as occurs in the first (vertical) xz planes by the shape of the guide curve, does not occur in the second (horizontal) xy planes.
  • The coupling optics 26 is preferably so long in the main transport direction of the light in the coupling-in optical system that at least part of the light has not just one, but a plurality of internal total reflections at the front side 26.v and at the back 26.r learn the Einkoppeloptik. This is a feature that distinguishes the coupling optics of the invention from conventional catadioptric optics. In the case of conventional catadioptric attachment optics, in each case a light beam generally experiences only a single total internal reflection on a lateral outer wall, before it is decoupled via the front side of the catadioptric attachment optics. The front 26.v and the back 26.r are preferably parallel to each other. As a result, the opening angle of the light beam in the xy planes (ie, in the horizontal planes) does not change due to these multiple reflections.
  • According to the invention, the signal light module 26 a homogenizer in the bundle of the the optically effective surface outgoing light is arranged and adapted to a parallelism of the propagation directions of the light in the cylinder axis 30 not to change perpendicular planes and to homogenize a distribution of the propagation directions of the light in the plane parallel to the cylinder axis planes, wherein the light guide 18 is arranged relative to the homogenizer so that it from the homogenizer ago on the deflection elements incident light on the light exit side 20 lets emerge.
  • Such a homogenizer 34 is in the 6 represented, which is the subject of 5 enlarged represents. The homogenizer here consists of an air gap 28 between the coupling optics 26 and the light guide 18 and a light mixer in the form of a plurality of scattering centers, here on the air gap 28 limiting light exit surface 35 the coupling optics 26 are arranged. In one embodiment, scattering centers are alternative or supplementary in the light entry surface delimiting the air gap 36 of the light guide 18 arranged. The scattering centers are, for example, cylinders whose generatrix perpendicular to the plane of the drawing 6 run.
  • The light mixer scatters the light incident on it in the horizontal plane shown to the right (in 6 up) and left (in 6 downward). For a fictitious viewer looking at the light mixer, this has the effect that the viewer is no longer the discrete light source 24 through the coupling optics 26 sees through it, but that the whole Lichtmischerfläche appears to him as homogeneously bright surface.
  • For the further propagation of the light, which has undergone a homogenization of the distribution of its propagation directions in the second (horizontal) xy planes by the homogenizer, there is the advantage that the deflection elements 23 the light guide, on which the light is incident on its further path, are illuminated much more uniformly than without the homogenizer according to the invention 34 the case would be. A more uniform illumination here means a uniformly bright illumination of different deflecting elements, that is, an illumination whose brightness changes only slightly during the transition from one deflecting element to the other deflecting element.
  • This uniformity is then formed in a more uniform illumination of the light exit surface 20 of the light guide 18 from.
  • The 7 shows a curve of the brightness along a light exit surface of a light guide, as shown in the 3 is shown, for the deflecting elements in the back having longitudinal portion. However, the associated signal light module differs from the signal light module described here by (and only by) not having a homogenizer according to the invention. The brightness is applied at an arbitrary scale over the length of the light guide. The axes intersect at the origin (0, 0). As one easily recognizes, the height of a brightness maximum is significantly more than twice the height of an adjacent minimum brightness, which is perceived by the viewer as disturbingly uneven.
  • The 8th on the other hand shows a curve of the brightness along a light exit surface of the light guide from the 3 for the deflecting elements in the back having longitudinal portion for an inventive, a homogenizer exhibiting signal light module. The brightness is also applied here at an arbitrary scale over the length of the light guide. As can easily be seen, the height of a brightness maximum is significantly less than twice the height of an adjacent minimum brightness. This means that the appearance of the luminous light guide of the signal light module according to the invention appears to be much more uniform and therefore more homogeneous and brightly luminous than is the case in the prior art.
  • With the invention, signal light modules can be produced with a rod-shaped light guide, which have a rectangular or, more generally, quadrangular cross-section transversely to the main propagation direction of the light in the light guide, and which have elongated coupling-out elements and high efficiency. The deflection elements are aligned transversely to the thickness d of the light guide and extend substantially over the entire thickness of the light guide. Because of this extension length such deflecting elements are considered here as elongated deflecting elements.
  • However, it is also possible to realize planar light guides which are elongated from the basic cross-section in one direction and have elongated coupling-out prisms. Depending on the extrusion direction of the basic cross-sectional figure (basic cross-sectional area), the coupling optics and the decoupling deflection elements are rotated in the design of the signal light module so that the light propagates mainly in the HV direction after decoupling. The HV direction is approximately the straight ahead direction. The HV direction points from the vehicle to the HV point, which is the point of intersection of horizontal horizontal H and an e. G. the vehicle longitudinal axis intersecting vertical H is defined.
  • In the in the 9 The light guide shown was the shape generated by mentally extruding the base in a direction obliquely backwards. To decouple the light in the desired direction, the coupling unit had to be slightly rotated. 9a shows a view from the right. 9b shows a view from the front, and 9c shows a view from diagonally above. 9 shows in particular an embodiment with a coupling device for coupling light from several light sources equipped (right side in 9a ), and with deflecting elements, which are arranged one above the other in several rows and which are thus no longer elongated deflecting elements in the sense of the definition given above.
  • 10 shows a concave reflector 26.R as an embodiment of a coupling unit usable in the invention. The cross section shown here also represents the guide curve of a cylinder. The generatrix of the associated cylinder, along which the guide curve is extruded mentally, stands here perpendicular to the plane of the drawing. The guide curve preferably has a parabolic shape. The light source is arranged in the focal point of the parabola, so that parallelization of the light reflected at the reflector takes place in the planes perpendicular to the generatrix. In planes that are parallel to the generators, however, there is no parallelization.
  • 11 shows a condenser lens 26.L as an embodiment of a coupling unit usable in the invention 26 , The cross section shown here is limited by two guide curves, of which the lens design is extruded to a light entrance surface and a light exit surface of the overall cylindrical lens. The generatrices of the associated cylinder, along which the guide curves are extruded mentally, are also perpendicular to the plane of the drawing. The guide curves preferably together result in a refractive behavior, by means of which the light beam emanating from the light source with a large aperture angle, as far as it propagates in the xz planes, is parallelized. In planes that are parallel to the generators, on the other hand, there is no parallelization.
  • In a further embodiment, the light guide, instead of elongated coupling-out elements, has a plurality of rows of deflection elements, each of which extends along the main propagation direction of the light in the light guide and which are arranged side by side transversely to this direction. In the illustrated arrangement, where the main propagation direction is in a horizontal plane, this juxtaposition is a superposition arrangement. See in particular 9a ,
  • A further embodiment is characterized by the fact that within a row of deflecting elements occasionally individual or few deflecting elements are missing in order to achieve certain luminous patterns.
  • As deflecting prisms can be used. It is always essential for the function as a deflecting element that the light incident on the respective deflection element is steered so steeply onto the light exit side that it no longer experiences any internal total reflection there, but is coupled out.
  • A further embodiment provides that the deflection elements, in particular in a realization by prisms, differ in height, width, depth and angular position to the main propagation direction in order to achieve the desired homogeneity and light distribution of the decoupled light. The extrusion direction, with which the deflecting elements are produced during the design by mental extrusion of a base surface, can additionally be rotated horizontally and / or vertically in several directions. For the same reason, the light exit surface may also be curved.
  • The invention can be realized not only with planar light guides, whose base was thoughtfully extruded in one direction only in the design, but the invention can be realized even with light guides, which are additionally slightly curved or curved in the vertical direction.
  • Up to here, the invention has been explained with reference to a horizontally extending optical fiber. However, the invention is not limited to applications with this orientation. The light guide may also be arranged in a direction extending in the vertical direction. Of course this is not because the light guide even in a differently oriented in space arrangement nor a rule-compliant signal light distribution, the arrangement and orientation in the room does not change, must generate.
  • Then the above vertical and horizontal planes must be reversed. Slanting arranged light guides are also possible. However, these are not as efficient as in particular horizontally arranged light guides.
  • A horizontally arranged light guide can also be slightly curved out of the horizontal plane. However, it must be ensured that all deflecting elements are still illuminated by the parallelization of the beams in the x-z planes.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • US 7111970 [0001, 0002, 0003]
    • DE 102007023076 A1 [0002]

Claims (11)

  1. Signal light module ( 16 ) for a motor vehicle, which signal light module is a light guide ( 18 ) with an elongated light exit surface (13) in relation to its thickness (d) ( 20 ) and one of the light exit surface ( 20 ) opposite back side ( 22 ) with deflecting elements ( 23 ), with a light source ( 24 ) and a coupling optics ( 26 ), which is arranged in a light beam emanating from the light source, characterized in that the coupling-in optics an optically effective surface ( 32 ), which is a lateral surface of a general cylinder, wherein the light source on one axis ( 30 ) of the general cylinder is arranged and its main emission direction perpendicular away from the axis and on the optically effective surface ( 32 ), the optically effective surface being such that it collimates incident light from the light source in planes perpendicular to the cylinder axis and not parallelized in planes parallel to the cylinder axis, and wherein the signal light module a homogenizer ( 344 ) which is arranged in the bundle of the light emerging from the optically active surface and is adapted not to change a parallelism of the propagation directions of the light in the planes perpendicular to the cylinder axis and a distribution of the propagation directions of the light in the plane parallel to the cylinder axis to homogenize, with the light guide ( 18 ) relative to the homogenizer ( 34 ) is arranged so that it from the homogenizer ago on the deflecting elements ( 23 ) incident light over the light exit side ( 20 ) leak.
  2. Signal light module ( 16 ) according to one of the preceding claims, characterized in that the homogenizer ( 34 ) from an air gap ( 28 ) between the coupling optics and the light guide and a light mixer in the form of a plurality of scattering centers.
  3. Signal light module ( 16 ) according to claim 2, characterized in that the scattering centers on the air gap ( 28 ) limiting light exit surface ( 35 ) of the coupling optics ( 26 ) are arranged.
  4. Signal light module ( 16 ) according to claim 3, characterized in that scattering centers in the air gap ( 28 ) limiting light entry surface ( 36 ) of the light guide ( 18 ) are arranged.
  5. Signal light module ( 16 ) according to claim 3, characterized in that the scattering centers are cylinders.
  6. Signal light module ( 16 ) according to one of the preceding claims, characterized in that the coupling-in optics ( 26 ) is a transparent solid.
  7. Signal light module ( 16 ) according to claim 6, characterized in that the optically effective surface ( 32 ) a guide curve ( 32 ) located in a central area ( 32.z ) has a convex lens profile whose focal line with the cylinder axis ( 30 ) coincides.
  8. Signal light module ( 16 ) according to claim 7, characterized in that the central area ( 32.z ) of side walls ( 32.s ), which so far in the direction of the light source ( 24 ) protrude that they include as far as possible the complete light emitted by the light source into a half-space.
  9. Signal light module ( 16 ) according to claim 8, characterized in that the coupling-in optics ( 26 ) is so long in the main transport direction of the light in the coupling-in optical system that at least part of the light has not just one but a plurality of internal total reflections on the front side ( 26.v ) and on the back ( 26.r ) learn the coupling optics.
  10. Signal light module ( 16 ) according to one of claims 1 to 5, characterized in that, the coupling unit is a concave mirror reflector ( 26.R ).
  11. Signal light module ( 16 ) according to one of claims 1 to 5, characterized in that the coupling unit is a converging lens ( 26.L ).
DE102015210372.2A 2015-06-05 2015-06-05 Signal light module for a motor vehicle Pending DE102015210372A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102015210372.2A DE102015210372A1 (en) 2015-06-05 2015-06-05 Signal light module for a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015210372.2A DE102015210372A1 (en) 2015-06-05 2015-06-05 Signal light module for a motor vehicle

Publications (1)

Publication Number Publication Date
DE102015210372A1 true DE102015210372A1 (en) 2016-12-08

Family

ID=57352498

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102015210372.2A Pending DE102015210372A1 (en) 2015-06-05 2015-06-05 Signal light module for a motor vehicle

Country Status (1)

Country Link
DE (1) DE102015210372A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018118764A1 (en) * 2018-08-02 2020-02-06 Automotive Lighting Reutlingen Gmbh Motor vehicle lighting device with a corrugated light guide

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7111970B2 (en) 2002-12-20 2006-09-26 Valeo Vision Indicating or lighting device with a screen or covering having a diffusive or reflective focus
DE102007023076A1 (en) 2007-05-16 2008-11-20 Automotive Lighting Reutlingen Gmbh Automotive headlight emitter has internal reflector has internal reflectors non-symmetrical to the waveguide symmetry plane

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7111970B2 (en) 2002-12-20 2006-09-26 Valeo Vision Indicating or lighting device with a screen or covering having a diffusive or reflective focus
DE102007023076A1 (en) 2007-05-16 2008-11-20 Automotive Lighting Reutlingen Gmbh Automotive headlight emitter has internal reflector has internal reflectors non-symmetrical to the waveguide symmetry plane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018118764A1 (en) * 2018-08-02 2020-02-06 Automotive Lighting Reutlingen Gmbh Motor vehicle lighting device with a corrugated light guide

Similar Documents

Publication Publication Date Title
JP6180527B2 (en) Headlight illuminator
US9879836B2 (en) Lighting device in a motor vehicle
JP6294675B2 (en) Light module for motor vehicle headlamps configured to generate a striped light distribution
JP6292653B2 (en) Vehicle lighting
US9285091B2 (en) LED light module
JP5853015B2 (en) Integrated lighting assembly
JP4766698B2 (en) Vehicle headlamp unit
US6299334B1 (en) Vehicle lamp
EP2317212B1 (en) Lighting device for a motor vehicle
US9611996B2 (en) Motor vehicle headlamp
EP2338732B1 (en) Motor vehicle lighting device with a light guide and light sources of different colours
JP5483237B2 (en) Light guide module with adjustable illumination of contour surface
US7543964B2 (en) Lighting module for a motor vehicle light headlamp, and headlamp comprising a module of this type
DE102011085315A1 (en) Headlamp projection module for a motor vehicle
US10018314B2 (en) Lighting device for vehicles
EP2719940B1 (en) Light module
EP2306073A2 (en) Light module for a lighting device of a motor vehicle
EP2901075B1 (en) Light guide for a motor vehicle lighting and/or signalling device
DE102005019093B4 (en) Vehicle lamp with a multi-membered light guide
US9546766B2 (en) Light module for a motor vehicle headlamp
JP4663732B2 (en) Vehicle light
EP2857740B1 (en) Motor vehicle lighting device
CN104864338A (en) Lighting device for vehicles
US9249943B2 (en) Light module for a motor vehicle headlamp
DE102012221389A1 (en) Motor vehicle light with a light guide and a visible through the light guide aperture