EP2693106B1 - Lichtmodul - Google Patents

Lichtmodul Download PDF

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Publication number
EP2693106B1
EP2693106B1 EP13172375.1A EP13172375A EP2693106B1 EP 2693106 B1 EP2693106 B1 EP 2693106B1 EP 13172375 A EP13172375 A EP 13172375A EP 2693106 B1 EP2693106 B1 EP 2693106B1
Authority
EP
European Patent Office
Prior art keywords
light
light module
unit
optical unit
securing
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.)
Active
Application number
EP13172375.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2693106A3 (de
EP2693106A2 (de
Inventor
Stephan Braun
Friedrich Schauwecker
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 EP2693106A2 publication Critical patent/EP2693106A2/de
Publication of EP2693106A3 publication Critical patent/EP2693106A3/de
Application granted granted Critical
Publication of EP2693106B1 publication Critical patent/EP2693106B1/de
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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • 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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • 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
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection 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
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • 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]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas

Definitions

  • the invention relates to a light module, as can be used in particular in motor vehicle headlights.
  • a light module is understood to mean the actual light-emitting unit of a headlight, which emits the desired radiation distribution.
  • the light distribution should have certain, usually legally prescribed, characteristic intensity profiles.
  • dimmed light distributions are to be provided, for example as low beam or fog light.
  • a dimmed light distribution is characterized by a light-dark boundary that runs essentially horizontally in sections.
  • a section of the cut-off line that faces oncoming traffic runs vertically lower than a section of the cut-off line that faces away from oncoming traffic.
  • a sloping section of the cut-off line is a sloping section of the cut-off line.
  • a high beam light distribution should often be generated. This usually consists of a comparatively narrow illuminated area above the cut-off line (spot light distribution) and a basic light distribution for uniform illumination below the cut-off line.
  • a further development is to provide a so-called partial high beam.
  • a selected area of the emitted light distribution is specifically darkened. This prevents dangerous oncoming traffic from being dazzled.
  • specific areas it is also conceivable for specific areas to be brightly illuminated in order to draw the driver's attention to these areas.
  • Corresponding configurations are also advantageous for the dimmed light distribution (so-called partial low beam).
  • the required darkening of certain areas of the emitted light distribution is preferably carried out automatically in conjunction with suitable sensors for detecting oncoming traffic or other objects. This enables a dynamic partial high beam or a "glare-free high beam" or a dynamic low beam to be implemented.
  • Light modules which have the following basic structure: A matrix-like arrangement of semiconductor light sources and a primary optics with matrix-like arranged light guide elements, each having a light entry surface and a light exit surface.
  • a light entry surface is assigned to a semiconductor light source.
  • the light exit surfaces are also arranged in a matrix and form a primary optics exit surface.
  • the light modules described also have secondary optics, which is set up to image or project the light distribution which arises on the primary optics exit surface in order to achieve a desired emission light distribution on an apron located in front of the headlight or in front of the light module.
  • a partial high beam or a partial low beam can be realized by specifically switching off individual ones of the semiconductor light sources, the other semiconductor light sources continuing to emit light.
  • the light entry surface of a light guide element of the primary optics should be positioned as close as possible to the light emission surface of the associated semiconductor light source.
  • the light emission surfaces and the light entry surfaces should be aligned with one another in such a way that the largest possible proportion of the emitted light can be coupled into the primary optics through the light entry surface. If the distance between the light emission surface and the light entry surface is too large or the positioning is inaccurate, part of the light emitted by the semiconductor light source is not used for the distribution of the light emission and the efficiency of the light module is reduced.
  • the light distribution that can be emitted by the light module is also influenced by the light distribution that arises on the primary optics exit surface and that is projected via the secondary optics. Also the light distribution on the primary optics exit surface can depend sensitively on the positioning of the light entry surfaces relative to the semiconductor light sources.
  • the secondary optics should be positioned precisely relative to the primary optics exit surface. Otherwise, due to the dispersion properties of the secondary optics (usually designed as a converging lens), undesired color edges (color fringes) can appear in the emitted light distribution.
  • the light modules are installed in motor vehicle headlights, then the light modules must also be adjusted in the respective headlight housing and in relation to any other optical elements of the headlight. Furthermore, a light module of a motor vehicle headlight generally has to be aligned with respect to the light modules in other headlights of the same motor vehicle. In this respect, the alignment of the light module in the headlight can be problematic.
  • An LED light source system with the features of the preamble of claim 1 is in the EP 1 925 876 A1 described.
  • the object of the invention is to provide a light module which can be manufactured with great precision with respect to the alignment of the optically functional parts with respect to one another and is flexible can be used in different headlights.
  • the calibration required during the manufacture of the light module is to be simplified.
  • the solution idea according to the invention is to provide a modular structure of preassembled units for the light module. These only have to be put together for final assembly of the light module. The necessary adjustments and calibrations can advantageously be carried out when the preassembled structural units are assembled.
  • the light source unit, the primary optics unit and the secondary optics unit are each designed as preassembled units which are assembled for the final assembly of the light module.
  • the final assembly is made possible by the fact that a first fastening device is provided for fastening the primary optics unit to the light source unit in a positionally accurate manner.
  • a second fastening device is provided, which is designed to fasten the secondary optics unit in the correct position with respect to the primary optics unit.
  • the second fastening device comprises a holding frame, which is set up for arrangement between the primary optics unit and the secondary optics unit, the primary optics unit being accommodated between the holding frame and the light source unit.
  • the holding frame has a housing fastening section for fastening the light module in a headlight housing.
  • the attachment is carried out in a precise position insofar as attachment is possible at a location relative to the reference object that can be predetermined to a certain extent with respect to all three spatial directions.
  • the construction according to the invention from preassembled units has the advantage that each of the units can be tested for their function. This enables quality control already during the manufacture of the individual building units.
  • the critical alignment of the individual units can be carried out easily during final assembly.
  • the units can be aligned, adjusted and calibrated and fastened to each other step by step.
  • the primary optics unit can be assembled with the light source unit in such a precise position that the light entry surfaces are precisely assigned to the respective semiconductor light sources. This is particularly advantageous if the primary optics unit has a matrix-like arrangement of light entry surfaces, which are each to be individually assigned to the semiconductor light sources, which are likewise arranged in a matrix.
  • the function of the subunit composed of the light source unit and the primary optics unit can then be tested.
  • the light distribution that arises on the light exit surfaces decisively influences the light distribution emitted by the light module. It can be checked whether the assignment of the optical elements to the respective semiconductor light sources meets the requirements, e.g. whether sufficient light is coupled into each optical element.
  • an electrical calibration of the radiation powers of the individual semiconductor light sources can be carried out taking into account the effect of the assigned optical elements.
  • the secondary optics unit can be added to set up the light module.
  • the second fastening device allows the lens device to be positioned precisely in relation to the light-emitting surfaces of the primary optics unit. The described dispersion effects can be minimized by this calibration. Overall, the light module according to the invention enables an inexpensive and simple final assembly process.
  • the structural units are designed such that they are joined together along an assembly direction, e.g. pushed together or put together and can be attached to each other.
  • the various structural units are preferably connected to one another in the order in which they functionally function along the light path.
  • the primary optics unit is first joined together with the light source unit along the mounting direction.
  • a holding frame is then preferably slid and connected to this combination assembly along the mounting direction.
  • the secondary optics unit is pushed onto the respective combination assembly (depending on the embodiment with or without the holding frame) and assembled along the direction of assembly.
  • the light module constructed according to the invention can be installed as a unit in a headlight.
  • the sensitive calibration between the light source unit and the primary optics unit and between the primary optics unit and the secondary optics unit is retained.
  • the light distribution is understood to mean that light distribution which is generated by the lens device of the secondary optics unit from the light distribution which arises on the light exit surfaces of the primary optics unit.
  • the radiation light distribution then serves to illuminate the apron located in front of the light module or in front of the headlight. This defines a main emission direction for the light module.
  • the first fastening device preferably comprises a fastening section of the light source unit on the one hand and an associated fastening section of the primary optics unit on the other hand.
  • the first fastening device does not necessarily represent a separate component, but is formed by the two fastening sections mentioned.
  • the fastening sections are designed to match one another, for example in such a way that they can engage in one another for fastening.
  • the fastening section of the light source unit has a projecting section, for example a fastening pin.
  • the fastening section of the primary optics unit then has an associated recess in which the projecting section can be received (e.g. in the manner of a socket).
  • the holding frame preferably has a first fitting section for connection to the primary optics unit, and a second fitting section for fastening the secondary optics unit in a positionally accurate manner with respect to the primary optics unit.
  • the light module then has four functional ones Main components: the light source unit, the primary optics unit, the holding frame and the secondary optics unit. These can simply be put together for final assembly.
  • the first fitting section of the holding frame can have connecting elements for fastening the primary optics unit.
  • the primary optics are not directly attached to the holding frame, that is to say that the first fitting section has no connecting elements for directly attaching the primary optics unit. Then the primary optics are connected to the holding frame in particular via the light source unit.
  • the primary optics unit is preferably received without means for directly attaching (e.g. screwing) the primary optics to the holding frame between the holding frame and the light source unit.
  • the holding frame can be designed so that it is adapted to the light source unit in such a way that an assembly space is formed during assembly, in which the primary optics unit can be accommodated with a precise fit.
  • the light source unit is in particular from behind, that is from the direction opposite to the light emission direction of the light module, with the Retaining frame detachably screwed. This makes it possible to replace the light source unit in the light module, for example for maintenance purposes.
  • the first fitting section is designed in the manner of a recess in the holding frame, into which an associated section of the primary optics unit or a partial housing enclosing the primary optics unit can be received as a whole.
  • the second fitting section comprises, in particular, fastening means for precise fastening and / or for adjusting the position of the secondary optics unit. These fastening means are preferably designed such that a releasable and re-attachable connection to the secondary optics unit is possible.
  • the holding frame also serves as an interface between the light module and a headlight housing of a headlight, in which the light module is to be installed.
  • the holding frame has a housing fastening section for fastening the light module in the headlight housing.
  • the holding frame has a bearing section (for example a spherical section), via which the light module can be mounted in a headlight housing.
  • the holding frame can have one or more alignment sections, via which the orientation of the light module in the headlight housing can be changed in that the light module can be tilted and / or displaced by exerting force on the alignment section.
  • the holding frame has a projection with a through opening for receiving a guide rod, by means of which the light module can be aligned.
  • the second fastening device is preferably designed such that the secondary optics unit is detachably and reattachably arranged. This makes it possible to loosen the secondary optics unit for adjustment and to reattach it and thus achieve a positionally accurate alignment of the lens device.
  • the light source unit comprises a plurality of LED chips, each with a light emission surface, the light emission surfaces of the LED chips being arranged in a matrix-like manner with respect to one another.
  • the light source unit can also have a plurality of LEDs which are positioned in a desired (e.g. also irregular) arrangement on a printed circuit board.
  • the circuit board can form a front of the light source unit. When assembled, this front side faces the primary optics unit.
  • a heat sink for dissipating heat can be arranged on that side of the circuit board which is oriented away from the primary optics unit in the assembled state of the light module.
  • the heat sink is preferably thermally connected to the circuit board, for example glued with thermally conductive adhesives.
  • a ventilation device can be provided on the side of the printed circuit board facing away from the primary optics unit for the air to flow against the heat sink.
  • the light source unit comprises a control device by means of which the semiconductor light sources are independent are controllable from each other to emit light.
  • the control device can, in particular, switch individual semiconductor light sources on or off independently of one another.
  • a variable partial high beam or a glare-free high beam as described at the beginning, can be provided with a single, self-contained light module. It is also conceivable that the control device can change the emitted intensities of the individual semiconductor light sources independently of one another.
  • the control device is preferably also arranged on the circuit board of the light source unit.
  • the light source unit therefore represents a complex structural unit, which can include all electronically functional components of the light module.
  • the optical elements are provided by a coherent primary optics element which has a multiplicity of light-guiding sections which can each be assigned to a semiconductor light source, each of the light-guiding sections having a light entry surface.
  • a light guide section with its light entry surface is then assigned to a semiconductor light source (or the associated light emission surface).
  • the light guide sections and / or the light entry surfaces are in particular arranged in a matrix, preferably in accordance with the arrangement of the semiconductor light source.
  • the light exit surfaces are preferably matrix-like arranged and in particular form a common primary optics exit surface.
  • the primary optics unit can furthermore have guide means for holding and / or positioning the individual light guide sections of the primary optics element.
  • the primary optics unit is a complex structural unit which combines all the optically functional features of the primary optics and enables precise adjustment, in particular with respect to the light source unit.
  • the secondary optics unit can have a fitting section for its precise fitting (for example on the associated fitting section of the holding frame) and a decorative element surrounding the lens device at least in sections.
  • This decorative element is designed and arranged such that it is visible when the light module is assembled when looking at the secondary optics unit.
  • the decorative element is at least partially visible when the light module is installed in a headlight. This enables an attractive design to be achieved. It is not necessary to design the lens holder of the secondary optics unit as a design part.
  • the decorative element can be changed without changing the structure of the light module. Therefore, the light module can be used in different headlights with different designs and an appealing look can be achieved with an adapted decorative element.
  • the fitting section of the secondary optics unit is preferably arranged on or provided by the lens holder.
  • the fitting section is designed in such a way that it can fit snugly against said second fitting section of the holding frame.
  • the lens holder is designed, for example, in the manner of a hollow body open on both sides, one of the openings of the hollow body being closed by the lens device and the fitting section of the secondary optics unit being provided in the region of the other opening.
  • the fitting section of the secondary optics unit thus contributes to the second fastening device.
  • the fitting sections of the secondary optics unit and the holding frame are preferably designed to be matched to one another, so that they engage in one another for fastening the secondary optics unit.
  • the lens holder has on its fitting section a projecting section, for example a pin, which can engage in an associated recess (e.g. socket) provided on the holding frame.
  • the secondary optics unit is therefore also designed as a complex structural unit, which combines all the functional components of the secondary optics and includes means for adjusting them.
  • the light module 10 essentially has four functional main components, each of which is designed as a pre-assembled complex structural unit: a light source unit 12, a primary optical unit 14, a holding frame 16 and a secondary optical unit 18. These structural units are shown in the illustrations according to Figure 1 and 2 Pictured lined up along a mounting direction 20. For the final assembly of the light module 10, the preassembled structural units 12, 14, 16, 18 are moved towards one another and joined essentially along the assembly direction 20.
  • the light source unit 12 comprises a printed circuit board 22, which forms a front side 24 of the light source unit 12. In the assembled state of the light module 10, this front side 24 faces the primary optics unit 14.
  • a multiplicity of semiconductor light sources 26 designed as LEDs are arranged in groups on the printed circuit board 22. Furthermore, electrical and electronic components of a control device are arranged on the printed circuit board 22, by means of which the individual semiconductor light sources 26 can be controlled to emit light.
  • the printed circuit board 22 On its rear side facing away from the primary optics unit 14 in the assembled state of the light module 10, the printed circuit board 22 is connected in a heat-conducting manner to a heat sink 28 (indicated in FIG Fig. 2 ). As a result, the heat emitted by the semiconductor light sources 26 and the power loss of the other electrical and electronic components can be effectively dissipated during operation of the light module 10.
  • the light source unit 12 also comprises a ventilation device 30 arranged in the area of the aforementioned rear side of the printed circuit board 22 (cf. Fig. 1 ). This serves to blow the heat sink 28 with air for better cooling.
  • the primary optics unit 14 has a primary optics element 32.
  • the primary optics element 32 comprises a multiplicity of light exit surfaces 34, which are arranged so as to run next to one another in such a way that a coherent primary optics exit surface 36 is created.
  • the primary optical element 32 has a multiplicity of light entry surfaces (not shown in more detail), which in the assembled state of the light module 10 are assigned to the semiconductor light sources 26 and are arranged in groups. The light coupled into the primary optics element 32 through these light entry surfaces leads to a light distribution on the primary optics exit surface 36, which is projected via the secondary optics unit 18 into the light distribution emitted by the light module 10.
  • the holding frame 16 is arranged between the light source unit 12 and the primary optics unit 14 on the one hand and the secondary optics unit 18 on the other hand. This is designed like a frame so that a light path between the primary optics unit 14 and the secondary optics unit 18 remains free through the holding frame 16.
  • the holding frame 16 has a first fitting section 40 which is designed such that the primary optics unit 14 can be received in the first fitting section 40 for attachment to the holding frame 16.
  • the primary optics unit 14 is inserted into the fitting section 40 designed as a recess along the mounting direction 20 (cf. Figure 2 ).
  • the holding frame 16 also has a second fitting section 42, which is designed to enable the secondary optics unit 18 to be fixed in position on the holding frame 16.
  • the holding frame 16 has a bearing section 45, which in the example shown is designed as a spherical section 45 (cf. Fig. 2 ).
  • This ball section 45 is mounted in a corresponding ball socket in the headlight housing (not shown).
  • the holding frame also has a first articulation projection 46 and a second articulation projection 47 as alignment sections. These serve to adjust and change the alignment of the light module 10 in a headlight housing, in particular by tilting or shifting the light module 10. For example, a vertical alignment takes place via the first articulation projection 46, and a horizontal alignment via the second articulation projection 47.
  • the first and the second articulation projection 46, 47 each have a through opening for receiving a guide rod, by means of which the light module can be aligned.
  • Alignment can be done manually or by motor.
  • the orientation of a specific light module in a motor vehicle can be adapted to the orientation of other light modules of the motor vehicle.
  • the secondary optics unit 18 comprises a lens device 48 designed as a converging lens. This is designed to project the light distribution that arises on the primary optics exit surface 36 into a radiation light distribution during operation of the light module 10.
  • the secondary optics unit 18 comprises
  • a lens holder 50 which on the one hand serves to hold the lens device, on the other hand contributes to an accurate position of the secondary optics unit 18.
  • the lens holder 50 is designed like a frame in the manner of a hollow body open on both sides, so that in the assembled state of the light module 10, the light path from the primary optics exit surface 36 through the holding frame 16 and through the lens holder 50 remains clear.
  • the section of the lens holder 50 facing away from the lens device 48 is designed as a fitting section 52.
  • the lens holder 50 widens like a collar in the region of the fitting section 52, so that the second fitting section 42 of the holding frame 16 can be fitted precisely against the fitting section 52 of the lens holder 50.
  • the secondary optics unit 18 also has a decorative element 54, which is designed like a frame and is arranged on the lens holder 50 in such a way that it surrounds the lens device 48 like a frame.
  • a first fastening device for fastening the primary optics unit 14 to the light source unit 12 in a precise position.
  • This first fastening device comprises projecting (in particular bolt-like) fastening sections 56, which are arranged on the light source unit 12.
  • the fastening sections 56 extend over the front side 24 of the light source unit 12 in the direction of the primary optics unit 14.
  • the primary optics unit 14 has correspondingly assigned fastening sections 58, which are designed as cylindrical recesses such that the fastening sections 56 can engage in the cylinder recesses 58 (cf. Figure 1 ). Via the mutually coordinated fastening sections 56 and 58, a positionally precise and adjustable fastening of the primary optics unit 14 to the light source unit 12 is made possible.
  • the final assembly of the light module 10 also takes place via a second fastening device which is designed for the positionally accurate fastening of the secondary optics unit 18 in relation to the primary optics unit 14.
  • the holding frame 16 first contributes to the second fastening device. With its first fitting section 40, the latter accommodates the primary optics unit 14, in particular together with the light source unit 12.
  • the second fitting section 42 of the holding frame 16 provides a recess 60 which acts as a fastening means for the secondary optics unit 18.
  • the recess 60 is designed such that a pin-like projection 62 of the fitting section 52 on the lens holder 50 can engage in the recess 60. This enables both an exact positional alignment and an attachment of the secondary optics unit 18. In this way, the disturbing dispersion effects (for example formation of a color fringe) explained at the outset in the light module 10 can be largely reduced by precisely aligning the lens device with respect to the primary optics exit surface 36.
  • a radiation light distribution can be emitted in a main emission direction 70.
  • the adjustment and relative alignment of the individual structural units (in particular 12, 14, 16, 18) with respect to one another is retained even when the light module 10 is installed in a headlight housing.
  • the optical entry when looking into the headlight housing is then essentially determined by the decorative element 54.

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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)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)
EP13172375.1A 2012-08-03 2013-06-18 Lichtmodul Active EP2693106B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012213844.7A DE102012213844B4 (de) 2012-08-03 2012-08-03 Lichtmodul für KFZ-Scheinwerfer mit zwei Optikeinheiten und zugehörigen Befestigungseinrichtungen

Publications (3)

Publication Number Publication Date
EP2693106A2 EP2693106A2 (de) 2014-02-05
EP2693106A3 EP2693106A3 (de) 2015-12-23
EP2693106B1 true EP2693106B1 (de) 2020-03-04

Family

ID=48669779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13172375.1A Active EP2693106B1 (de) 2012-08-03 2013-06-18 Lichtmodul

Country Status (3)

Country Link
EP (1) EP2693106B1 (zh)
CN (1) CN103574474B (zh)
DE (1) DE102012213844B4 (zh)

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DE102014103379A1 (de) * 2014-03-13 2015-09-17 Hella Kgaa Hueck & Co. Lichtmodul mit einer verbesserten Positionierung einer optischen Einheit zu einem Leuchtmittel
KR101847932B1 (ko) * 2015-04-23 2018-04-11 엘지전자 주식회사 발광모듈
JP6648430B2 (ja) * 2015-07-13 2020-02-14 市光工業株式会社 車両用灯具
FR3056699B1 (fr) * 2016-09-26 2019-06-28 Valeo Vision Module lumineux et dispositif lumineux pour vehicule auto-mobile comportant un tel module lumineux
CN108692264A (zh) * 2017-08-22 2018-10-23 常州星宇车灯股份有限公司 一种高亮度led前照灯远光模组
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DE102012213844B4 (de) 2021-01-28
CN103574474A (zh) 2014-02-12
EP2693106A3 (de) 2015-12-23
EP2693106A2 (de) 2014-02-05
CN103574474B (zh) 2017-06-30
DE102012213844A1 (de) 2014-02-06

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