EP3301350A1 - Module d'éclairage pour phare de véhicule automobile - Google Patents

Module d'éclairage pour phare de véhicule automobile Download PDF

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Publication number
EP3301350A1
EP3301350A1 EP17190034.3A EP17190034A EP3301350A1 EP 3301350 A1 EP3301350 A1 EP 3301350A1 EP 17190034 A EP17190034 A EP 17190034A EP 3301350 A1 EP3301350 A1 EP 3301350A1
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EP
European Patent Office
Prior art keywords
light
optics
module
light module
distribution
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.)
Granted
Application number
EP17190034.3A
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German (de)
English (en)
Other versions
EP3301350B1 (fr
Inventor
Wolfgang Hossfeld
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.)
Marelli Automotive Lighting Reutlingen Germany 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
Publication of EP3301350A1 publication Critical patent/EP3301350A1/fr
Application granted granted Critical
Publication of EP3301350B1 publication Critical patent/EP3301350B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/265—Composite lenses; Lenses with a patch-like shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis

Definitions

  • a light module of the type mentioned is, for example. From the DE 10 2005 015 007 A1 or the US 2014/0092619 A1 known. In the known light modules, however, it is such that the primary optics has a focal point which lies on the light-emitting surface of the semiconductor light source, and by the primary optics, a real intermediate image at the focal point of the secondary optics is generated by the Secondary optics for generating the resulting light distribution of the light module is projected onto the roadway in front of the motor vehicle. This results in a relatively large construction, especially in the light exit direction considered quite long light module.
  • a catadioptric transparent optical attachment whose total reflecting interface is divided into differently shaped area to produce a light distribution with a light-dark boundary.
  • This solution is very light efficient.
  • the disadvantage is that for typical light distributions, such as a low beam distribution according to regulation UN-ECE R112, the volume of the optics is so large that material thicknesses of> 20mm arise.
  • an attachment optics with such a thickness can no longer be produced cost-effectively, because, for example, the process cycle time increases due to the longer curing times of the sprayed transparent plastic material with the center thickness of the optics in the production by injection molding.
  • the shape of the light exit surface is basically circular or elliptical and an adaptation to other requirements, for example a rectangular exit surface, is only possible at the expense of light efficiency.
  • a headlamp is known with a light module that can produce different light spots that can be switched individually. Each light spot is generated by the image of an associated LED.
  • the optics consists of two lenses. The LEDs are arranged on a substrate and all use at the same time the optical system consisting of the two lenses. In this way, an adaptive high beam can be realized.
  • the lenses form an imaging optical system rotationally symmetric lenses.
  • the light exit surface is basically given by the shape of a lens, that is, by an approximately circular surface. Deviation from this form directly affects the light output and the quality of the light distribution. A broadening of the light exit surface can also be achieved only by increasing the center thickness of the second optics. However, this also means that center thicknesses of> 20mm are produced quickly, which lead to longer cycle times and higher production costs.
  • the present invention is intended to reduce the size of the light module, in particular in the light exit direction. At the same time the light exit surface of the light module is to be varied without sacrificing the efficiency and the production of the optics of the light module can be realized particularly cost.
  • the light module has at least one primary optic whose focal point, viewed counter to a light exit direction, is arranged behind the at least one semiconductor light source. Furthermore, the light module has a secondary optics whose focal point or focal line, viewed counter to the light exit direction, is likewise arranged behind the at least one semiconductor light source. Finally, the entire optical system of the light module, which comprises the at least one primary optics and the secondary optics, has a focal point or a focal line, which is arranged in the region of the light-emitting surface of the at least one semiconductor light source.
  • an optical system of at least one thin-walled first optics (primary optics) and a thin-walled second optics (secondary optics) is realized.
  • An optic is here called thin-walled, if it has a maximum center thickness of ⁇ 20mm. All first optics share a common second optics. All optics are preferably astigmatic optics that have significantly different focal lengths in a vertical and a horizontal plane.
  • An optical system comprising at least one primary optic and the secondary optics forms an anamorphic image of the luminous surface of the at least one semiconductor light source.
  • the anamorphic image causes in the horizontal and vertical planes different magnifications and thus different dimensions of the beam cone, which is generated by the semiconductor light source arise.
  • By a suitable design of the vertical and horizontal focal lengths of the optics it is possible to make the light exit surface of the second optics and thus of the light module in two mutually perpendicular directions with different expansion, without this at the expense of the light output.
  • the division of one to two or more optics also allows the realization of a high numerical aperture at the same time large focal length or low magnification without the need for thick-walled (> 20mm center thickness) optics are required consuming and time-consuming manufacturing processes and therefore are not inexpensive to manufacture ,
  • the first optics serve to bundle the light in a first step and for light shaping. They may therefore have differently shaped areas (segments or facets) to direct light meeting the different areas to different positions in the image plane.
  • Such a catadioptric attachment optics is basically from DE 10 2011 078 653 A1 known.
  • the attachment optics of the light module according to the invention differs from the known intent optics by the way in which it is arranged in the light module and in particular with respect to the at least one semiconductor light source and the secondary optics.
  • the semiconductor light source which is associated with a first optical system, generates a light distribution that can have one or more arbitrarily shaped light-dark boundaries by the optical system consisting of first and second optics.
  • the resulting total light distribution of the light module results from the superimposition of the individual light light distributions, which are generated by a respective light source, an associated primary optics and a secondary optics.
  • Each individual light distribution can have a different form of the light distributions and the light-dark boundaries, in that the respectively first optics are embodied differently or the type, shape or position of the semiconductor light source is selected differently.
  • the primary optic is embodied as a catadioptric facing optic made of a transparent material
  • the light entry and / or light exit surfaces may have a wave or pincushion modulation which serves to scatter the light in one or more directions. This scattering serves to the light distribution to make it wider or to homogenize the intensity or color appearance.
  • the secondary optics serve optically exclusively for a further focusing of the light, preferably in only one plane. It forms the light exit surface of the optical system of the light module and, in contrast to the first optics, has no visible different regions for light shaping. All first optics share the second optics, i. All optical axes of the subsystems of light sources and associated first optics pass through the second optics.
  • the focal length of the second optical system in a first plane is greater than 100 mm and thus greater than the length of the optical system in the light exit direction, measured along an optical axis from the light source to the light exit surface of the second optical system.
  • the focal length in the perpendicular second plane is much larger, typically infinite.
  • the width of a cylindrical lens can be flexibly adapted to design specifications.
  • the width can be made considerably larger than the height, which is not possible with a conventional non-anamorphic optical system consisting of rotationally symmetrical single optics.
  • the headlight 1 comprises a housing 2, which is preferably made of plastic.
  • the housing 2 has in the light exit direction 3, a light exit opening 4, which is closed by a transparent cover 5.
  • the cover 5 may be provided at least in regions with optically active elements (for example in the form of cylindrical lenses or prisms) (so-called diffusion disc) in order to effect a scattering of the light passing through, in particular in the horizontal direction.
  • the cover 5 may also be formed without optically active elements as a clear disk.
  • an inventive light module 10 is arranged inside the housing 2.
  • the light module 10 is used to generate any resulting drive-light distribution or a part thereof, for example.
  • a low beam, high beam, adaptive driving light city lights, country lights, motorway lights, Operafernlicht, marker light
  • fog light or the like for example.
  • light module 10 together with the light module 10, other light modules for generating any desired light can also be provided in the housing 2 Travel light distribution or a part thereof, or lighting modules for the realization of any lighting function (eg flashing light, position light, parking light, daytime running light, parking light, reversing light, brake light or the like) may be arranged.
  • the light module 10 according to the invention will be described below with reference to FIGS FIGS. 1 to 30 explained in more detail.
  • the light module 10 comprises a first optics or primary optics 11, which in this example is designed as a catadioptric transparent optic consisting of a refractive lens part and a totally reflecting reflection part.
  • a first optics or primary optics 11 which in this example is designed as a catadioptric transparent optic consisting of a refractive lens part and a totally reflecting reflection part.
  • Such optics is in itself, for example, from the DE 10 2011 078 653 A1 are known, to which reference is made here in terms of structure and operation of the optics.
  • Such an optic 11 can be easily manufactured eg by injection molding of plastic such as polycarbonate.
  • a semiconductor light source 12 for example in the form of one or more LEDs or their light-emitting surface (eg LED chip), to be emitted into a 180 ° half-space above an extension plane of the light-emitting surface to collect and bundle in a first step.
  • the reflective surfaces of the optic 11 are segmented or faceted. By means of the segments or facets 13, images of the light-emitting surface are imaged such that a horizontal light-dark boundary (cf., for example, the light-dark boundary 31 of the dimmed light distribution 30 in FIG FIG. 7 ) arises.
  • FIG. 1 shows the light-shaping segments or facets 13 in the reflective part of the optics 11.
  • a light exit surface 14 of the first optics 11 may be waved modulated to distribute the light passing through in the horizontal direction and to homogenize.
  • a sinusoidal modulation of the light exit surface 14 in the form of waves is, for example, in FIG. 5 shown where the waves (light areas) by the reference numeral 20 and the adjacent valleys (dark areas) by the reference numeral 21 are designated.
  • the waves 20 and valleys 21 have a longitudinal extension in the vertical direction 22.
  • the wave-shaped modulation of the light exit surface 14 takes place in a direction perpendicular to horizontal direction 23, ie the waves 20 and valleys 21 alternate in the direction 23.
  • the exit surface 14 may also have a pincushion-shaped modulation, can be distributed and homogenized by the light passing through not only in the horizontal direction, but also in the vertical direction.
  • the second optics or secondary optics 15 is in the in FIG. 1 illustrated example formed as a cylindrical lens that focuses vertically. These optics 15 can be easily made of plastic by injection molding or glass by molding, casting or grinding and polishing.
  • the secondary optics 15 has a significantly greater width than height.
  • An optical axis of the optical system comprising the at least one light source 12, the at least one primary optics 11 and the secondary optics 15 is designated by the reference numeral 16.
  • a focal point 17 of the primary optics 11 is arranged behind the at least one semiconductor light source 12, as viewed against a light exit direction. Further, a focal point 18 or a focal line 18a (see. FIGS. 9 to 12 ) of the secondary optics 15 counter to the light exit direction 3 viewed also behind the at least one semiconductor light source 12 is arranged.
  • the focal point 18 is the Secondary optics 15 behind the focal point 17 of the primary optics 11 arranged.
  • the two foci 17, 18 can also be arranged congruently or in such a way that the focal point 17 of the primary optics 11 is arranged behind the focal point 18 of the secondary optics 15.
  • both foci 17, 18 are arranged on the optical axis 16 of the optical system of the light module 10.
  • a focal line 18a of the secondary optics 15 would pass through the optical axis 16. But that does not necessarily have to be this way. It is also conceivable that the focal points 17, 18 are arranged offset to the optical axis 16 and a focal line 18a extends at a distance from the optical axis 16.
  • the entire optical system of the light module 10, which comprises the at least one primary optics 11 and the secondary optics 15, has a focal point 19 or a focal line 19a (cf. FIGS. 9 to 12 ) which is arranged in the region of the light-emitting surface of the at least one semiconductor light source 12.
  • the focal point 19 of the optical system is preferably arranged on the light-emitting surface, very particularly preferably in the middle thereof, or the focal line 19a extends on the light-emitting surface.
  • FIG. 2 is the light module 10 off FIG. 1 showing, by way of example, light beams which were emitted from the semiconductor light source 12 into the 180 ° half-space around the optical axis 16. These light beams are collimated by the first optics 11 and formed by the segments or facets 13 and the light exit surface 14, to be finally further collimated by the secondary optics 15 in the vertical plane.
  • the light module 10 thus has a two-part focusing of the light beams.
  • the arrangement of the optics 11, 15 in the light module 10 allows its particularly compact design, especially in the direction of the optical axis 16 considered.
  • the optical system of the light module 10 has a virtual (not real) image plane, which can be recognized by the divergent light beams.
  • the optical system is not imaging, ie no images of the light source 12 are generated.
  • FIG. 3 shows a vertical section through the arrangement FIG. 2 , It can be clearly seen that the catadioptric primary optics 11 shown here have a refractive lens part in the center around the optical axis 16 and an outer reflective part surrounding the lens section with totally reflecting boundary surfaces 13.
  • a light entrance surface of the reflecting part of the primary optics 11 is designated by the reference numeral 14a and a light entry surface of the central lens part of the primary optics 11 by the reference numeral 14b.
  • the focal points 17, 18, 19 and their positions relative to one another and with respect to the semiconductor light source 12 can be clearly seen.
  • FIG. 4 is the optical system of the light module 10 off FIG. 3 are shown with exemplary light rays that extend in the vertical plane and have their origin in the center of the light-emitting surface of the semiconductor light source 12. Extensions 18a 'of the light rays 18a to the rear, ie opposite to the light exit direction 3, intersect at the focal point 18 of the secondary optics 15. Between the focal point 18 and the semiconductor light source 12, the focal point 17 of the primary optics 11 is arranged. The focal point 19 of the entire system is arranged on the light-emitting surface of the light source 12.
  • FIG. 6 shows a plan view of the light module 10 from the FIGS. 1 to 4 , It can be clearly seen that in the horizontal plane by the secondary optics 15 practically no collimation of the light rays takes place. With this structure, a resulting light distribution 30 can be generated, as for example.
  • FIG. 7 shows a arranged at a distance (eg 25m) in front of the motor vehicle or in front of the light module 10 measuring screen on which a horizontal axis and a vertical axis are plotted, which intersect at a point.
  • the light distribution 30 forms a sharp light-dark boundary 31 just below the 0 ° line (vertical) and can therefore be used as a low beam distribution or as part of it.
  • lines with the same illuminance levels are shown in the light distribution 30.
  • a solid line for 10.0 lx is denoted by reference numeral 32, a dashed line for 1.0 lx to 33 and a dashed line for 0.1 lx to 34.
  • reference numeral 32 For the definition of the light-dark boundary 31 different criteria can be used.
  • the position of the 0.1 lx iso-line 34 was used as a simple criterion.
  • FIG. 8 shows how the light distribution 30 is formed by a superimposition of different images 36 of the light-emitting surface of the light source 12.
  • the different segments or facets 13 of the interfaces of the primary optics 11 are designed such that the respective uppermost corner or edge of the image lies on the line which marks the desired position of the light-dark boundary 31.
  • all the images 36 have a rectangular shape with very different length and width, although the light source 12 in this example is an LED whose luminous surface has a square shape.
  • These pictures 36 arise because the illustration of the system is anamorphic, so the LED chip image 36 is increased differently in the horizontal and vertical directions.
  • the horizontal magnification is always greater than the vertical in the system described, because the vertical focal length of the entire system is longer than the horizontal focal length.
  • FIG. 9 There is shown an optical system of a light module 10 comprising three semiconductor light sources 12, three primary optics 11 associated therewith in the form of catadioptric optics and a secondary optic 15 in the form of a cylindrical lens.
  • the cylindrical lens comprises a focal or focus line 18a.
  • the light-emitting surfaces of the LEDs 12 are arranged on a line 19 a, which preferably runs parallel to the focal line 18 a of the secondary optics 15.
  • the line 19 a corresponds to a focal line of the entire optical system of the light module 10.
  • the secondary optics 15 is designed in the form of a curved cylindrical lens in order to realize an appealing design of the light exit surface of the light module 10.
  • the cylindrical lens 15 is bent in particular in a horizontal plane.
  • the curvature of the lens surface in vertical section has remained constant in this case.
  • the focal length of the cylindrical lens 15 changes in the Vertical section not, but the position and shape of the focal line 18a, which is now also bent in the horizontal plane.
  • the distance to the second optical system 15 on the respective optical axis 16 of the first optical system 11 changes for each first optical system 11.
  • first optics 11 and second optics 15 thereby generates different horizontal and vertical magnifications and each first optic 11 must therefore be designed differently.
  • the focal line 18a of the secondary optics 15 and the focal line 19a of the entire optical system no longer run parallel to each other.
  • each optical subsystem (with elements 12, 11, 15) is to produce a comparable light distribution, as is the case, for example, in the case of pixel-shaped light distributions for adaptive high-beam distributions (eg, partial high-beam, marker light, etc.).
  • each subsystem supplies the same magnification of the images of the light-emitting surface of the semiconductor light sources 12 in the horizontal or vertical direction. To achieve this, the position of the LEDs 12 on a line 19a parallel to the focal line 18a of the secondary optics 15 must be selected. A corresponding example is in FIG. 12 shown.
  • FIG. 13 FIG. 4 shows an example of how the LED chip images 41 of different regions 13 of a first optical system 11 can be positioned to produce a striped light distribution 40 with vertical light-dark boundaries 42 and horizontal light-dark boundaries 43.
  • FIGS. 14 to 21 show examples of a total of 21 individual light distributions 50, each of which can be generated by an LED 12 with associated first optics 11 and the second optics 15 in the form of a cylindrical lens.
  • FIG. 14 shows the individual light distributions 50 of LEDs # 1 to # 3, FIG. 15 from LEDs # 4 to # 6, FIG. 16 from LEDs # 7 to # 9, FIG. 17 of LEDs # 10 and # 11, FIG. 18 from LEDs # 12 to # 14, FIG. 19 from LEDs # 15 to # 17, FIG. 20 from LEDs # 18 to # 20 and FIG. 21 from LED # 21.
  • the individual light distributions 50 each have two vertical light-dark boundaries 51 and two horizontal light-dark boundaries 52. This illuminates a defined angle range horizontally and vertically.
  • lines with the same illuminance levels are shown in the individual light distributions 50.
  • a solid line for 50.0 lx is denoted by reference numeral 53, a dashed line for 10 lx 54 and a dotted line for 0.1 lx 55.
  • the position of the 0.1 lx iso-line 55 was used as a simple criterion.
  • the illuminated angle range is, according to this definition, approximately horizontal 3 ° wide and vertical 10 ° high.
  • FIG. 22 shown resulting light distribution 60, which can serve as a high beam distribution.
  • lines with the same illuminance levels are shown in the light distribution 60.
  • a solid line for 50.0 lx is designated by reference numeral 61, a dashed line for 10 lx by 62 and a dashed line for 0.1 lx by 63. Since the individual light distributions 50 are offset horizontally by approximately 1.5 ° to each other, by deactivating or dimming individual LEDs, 12 angular ranges with a minimum of approximately 1.5 ° width can be switched to dark.
  • FIG. 23 An example of a total light distribution 60 with twice 1.5 ° wide dark masking area 64 shows FIG. 23 ,
  • the LEDs # 13 and # 14 must be switched off or dimmed (the lower two individual light distributions 50 off FIG. 18 ).
  • the light distribution 60 off FIG. 23 can be used as a partial remote light.
  • the motor vehicle are installed in the headlamp 1 with the light module 10 according to the invention, via suitable means for detecting other road users in front of the motor vehicle. These means include, for example, a video camera for capturing images of the area in front of the motor vehicle and a computing unit for evaluating the recorded images and for detecting oncoming or preceding ones Vehicles in a certain area of the pictures.
  • the Ausblend Scheme 64 can change dynamically, for example, when an oncoming other road users on the motor vehicle passes with the light module 10 or when a leading road user drives on a winding road in front of the motor vehicle. It is also conceivable to provide a plurality of masking regions 64 in the high beam distribution 60, if necessary. In addition, the width of the masking area 64 can be adapted individually to the current traffic situation.
  • the LEDs 12 are supplied with pulse width modulation for this purpose. By changing the pulse width, the luminous flux can be controlled.
  • the first optics 11 is implemented as a reflector and the second optics 15 as a cylindrical lens.
  • the FIGS. 26 to 29 show single light distributions 70 generated by the subsystems # 1 to # 5 each comprising an LED 12, a reflector 11 and the cylindrical lens 15.
  • Subsystems # 1 to # 3 produce, for example, light distributions 70 with a horizontal light-dark boundary 71, which lies just below vertical 0 ° (cf. FIGS. 26 to 28 ).
  • lines with the same illuminance levels are shown in the individual light distributions 70.
  • a solid line for 4.0 lx is denoted by reference numeral 72, a dashed line for 0.4 lx by 73 and a dashed line for 0.1 lx by 74.
  • the position of the 0.1 lx iso line 74 was used as a simple criterion.
  • FIG. 26 is the single light distribution 70, generated by subsystem # 1, in FIG FIG. 27 through subsystem # 2 and in FIG. 28 the single light distribution 70 generated by subsystem # 3 is shown.
  • a single light distribution 70 is shown as coming from the subsystem # 4 (LED # 4, Reflector # 4 and Cylindrical Lens 15) and Subsystem # 5 (LED # 5, Reflector # 5 and Cylindrical Lens 15) of the light module 10, respectively FIG. 25 is produced.
  • the light distribution 70 has a light-dark boundary 71a rising obliquely from the center (intersection of the horizontal and the vertical) to the top right (towards the own traffic side).
  • the illumination intensity distribution in the light distributions 70 is illustrated by iso-lines.
  • a solid line for 4.0 lx is denoted by reference numeral 72, a dashed line for 1.0 lx to 73a and a Dotted line for 0.1 lx designated 74.
  • reference numeral 72 A solid line for 4.0 lx is denoted by reference numeral 72, a dashed line for 1.0 lx to 73a and a Dotted line for 0.1 lx designated 74.
  • FIG. 30 shows the resulting total light distribution 80 of the light module 10 in the form of a low-beam light distribution with an asymmetric light-dark boundary 81.
  • the light distribution 80 results from a superposition of the individual light distributions 70 of the LEDs # 1 to # 5 out of the FIGS. 26 to 29 .
  • the light-dark boundary 81 of the light distribution 80 has a section 81a that rises approximately from the center (intersection of the horizontal and the vertical) to the top right (towards the own traffic side).
  • the illumination intensity distribution in the light distributions 80 is illustrated by iso-lines.
  • a solid line for 10.0 lx is denoted by reference numeral 82, a dashed line for 1.0 lx to 83a and a dashed line for 0.1 lx to 84.
  • a plurality of LEDs 12 use a first optical system 11.
  • the number of generated light areas ("pixels") of an adaptive high beam distribution can be increased without the number of first optics 11 having to be increased.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP17190034.3A 2016-09-26 2017-09-08 Module d'éclairage pour phare de véhicule automobile Active EP3301350B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016118152.8A DE102016118152A1 (de) 2016-09-26 2016-09-26 Lichtmodul für einen Kraftfahrzeugscheinwerfer

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EP3301350A1 true EP3301350A1 (fr) 2018-04-04
EP3301350B1 EP3301350B1 (fr) 2022-02-23

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CN116221647A (zh) * 2023-05-08 2023-06-06 常州星宇车灯股份有限公司 车灯远光照明系统、照明模组及车辆
EP4368878A1 (fr) * 2022-11-08 2024-05-15 Hella Autotechnik Nova, s.r.o. Projecteur pour véhicule automobile

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Publication number Priority date Publication date Assignee Title
EP3550203B1 (fr) * 2018-04-04 2022-12-21 ZKW Group GmbH Module d'éclairage pour un dispositif d'éclairage de véhicule automobile en flèche
CN212746315U (zh) * 2020-07-02 2021-03-19 华域视觉科技(上海)有限公司 透镜单元、辅助近光模组、透镜、近光照明模组和车辆
DE102021124722A1 (de) 2021-09-24 2023-03-30 Bartenbach Holding Gmbh Strahler

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DE102005015007A1 (de) 2004-04-02 2005-10-20 Koito Mfg Co Ltd Fahrzeugleuchte
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EP4368878A1 (fr) * 2022-11-08 2024-05-15 Hella Autotechnik Nova, s.r.o. Projecteur pour véhicule automobile
CN116221647A (zh) * 2023-05-08 2023-06-06 常州星宇车灯股份有限公司 车灯远光照明系统、照明模组及车辆

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