EP2484959A2 - Module lumineux de projection d'un phare de véhicule automobile monté de manière modulaire - Google Patents

Module lumineux de projection d'un phare de véhicule automobile monté de manière modulaire Download PDF

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Publication number
EP2484959A2
EP2484959A2 EP12151359A EP12151359A EP2484959A2 EP 2484959 A2 EP2484959 A2 EP 2484959A2 EP 12151359 A EP12151359 A EP 12151359A EP 12151359 A EP12151359 A EP 12151359A EP 2484959 A2 EP2484959 A2 EP 2484959A2
Authority
EP
European Patent Office
Prior art keywords
lens
unit
assembly
projection light
light 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.)
Granted
Application number
EP12151359A
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German (de)
English (en)
Other versions
EP2484959A3 (fr
EP2484959B1 (fr
Inventor
Michael Hamm
Christian Buchberger
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 EP2484959A2 publication Critical patent/EP2484959A2/fr
Publication of EP2484959A3 publication Critical patent/EP2484959A3/fr
Application granted granted Critical
Publication of EP2484959B1 publication Critical patent/EP2484959B1/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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—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
    • F21S41/10—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
    • 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
    • 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
    • F21S41/19—Attachment of light sources or lamp holders
    • 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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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

Definitions

  • the present invention relates to a projection light module having at least one first assembly comprising a light source unit having semiconductor light sources and a second assembly having a lens unit, the first assembly being configured to hold the second assembly in the projection light module.
  • the second assembly is, for example, a lens unit
  • the first assembly includes, for example, a light source unit, a shutter unit, and a lens holder unit.
  • Such a projection light module serves to generate a light distribution of the headlamp, which has a cut-off line. This creates the cut-off line as a projection of a Aperture edge of the aperture unit, which is illuminated by a light source of the light source unit.
  • the appearance of headlamps is an important distinguishing feature of motor vehicles. To distinguish their products from products of other motor vehicle manufacturers, they want to be able to make the appearance as free as possible.
  • the appearance of headlamps is largely determined by the luminous light emitting surfaces of the lens units of the projection light modules and less by the external shape of the headlamps.
  • a distinction from known appearances can therefore be achieved, for example, via a design of the luminous surfaces of the convergent lens of a projection light module.
  • the object of the invention is to provide a projection light module that allows a great freedom of design of the appearance of equipped with projection light modules headlamps with relatively lower development costs and manufacturing costs.
  • the projection light module according to the present invention differs from the per se known projection light module in that the first assembly is adapted to hold, without modification, either a first embodiment of the second assembly or a second embodiment of the second assembly different from the first embodiment in the projection light module, and both to produce a rule-compliant light distribution with the first embodiment as well as with the second embodiment.
  • the first assembly in addition to the light source unit has a diaphragm unit and that the second assembly in addition to the lens unit has a lens holder unit.
  • This refinement has the advantage that the components that are most readily visible and therefore most relevant to the appearance are combined in a second assembly which is variable in appearance, while the components that are not visible are combined to form an assembly that is not to be changed and is moreover embossed by its technical features which does not have to be changed when the design is changed, and which can therefore be produced in large quantities in a production-optimized and cost-optimized manner.
  • the second assembly has, in addition to the lens unit, a lens holder unit and a shutter unit.
  • This embodiment has the advantage that the required for a perfect lighting function of the projection light module adjustment of the diaphragm unit for lens unit within a module, which is manufacturing technology cheaper than when the adjustment of one module relative to another module done when joining the two modules got to.
  • this advantage is achieved with the disadvantage that the complexity of the variable in the form of the second component of the projection light module increases while the complexity of the invariable first assembly decreases. This is rather disadvantageous because the desired advantages of the reduced development effort and manufacturing costs are greater, the greater the immutable proportion of the projection light module.
  • a particularly preferred embodiment is characterized in that the first assembly in addition to the light source unit and the aperture unit has a lens holder unit and that the second assembly has a lens unit.
  • the immutable portion is particularly large, so that the desired effects occur in a correspondingly large extent.
  • the lens unit has a defined interface.
  • this interface is formed by structures of the lens unit which are set up for holding the lens unit and which have a separate component which is different from the convergent lens.
  • Such a component may, for example, be a lens-holding ring adapted to the shape of the lens, having fastening elements such as threaded holes and / or threaded studs and / or grooves and / or other recesses for attaching the lens unit to the first assembly.
  • fastening elements such as threaded holes and / or threaded studs and / or grooves and / or other recesses for attaching the lens unit to the first assembly.
  • the lens unit has a plastic lens because plastic lenses in a wide variety of shapes can be manufactured comparatively easily and inexpensively by injection molding. Plastic lenses open up a big one creative freedom at low cost. In addition, plastic lenses are lighter than glass lenses, which contributes to the desired reduction in fuel consumption and emissions of automobiles. The possibility of using plastic lenses instead of glass lenses results in particular when semiconductor light sources are used instead of gas discharge lamps or incandescent lamps, because semiconductor light sources emit substantially less heat with their light. When using semiconductor light sources, a high temperature resistance, as they have glass lenses, no longer of great importance.
  • structures of the lens unit configured for holding the lens unit are integrated into the plastic material of the plastic lens.
  • the plastic lens is a plastic lens produced by a two-component injection molding method in which a blank molded in a first process cycle forms a core of a central portion of the condenser lens, and its final shape is overmolded by molding in a second process cycle Blanks with more plastic results.
  • a further preferred embodiment provides that structures arranged for holding the lens unit of the lens unit are integrated in the plastic material of the blank or in the other plastic.
  • a further preferred refinement is characterized in that the light source unit has a receptacle for the semiconductor light sources, or in that the light source unit has a receptacle for the semiconductor light sources and a control device set up for controlling and / or monitoring the semiconductor light sources, together with for cooling the Having semiconductor light sources arranged heat sinks and arranged for focusing the light of the semiconductor light sources attachment optics.
  • This embodiment provides a universally applicable light source unit in which components required for the generation of light are combined.
  • This light source unit can be used in every projection light module of the modular projection light module construction kit presented here, which allows the realization of large-scale production.
  • a projection light module having semiconductor light sources from a production engineering point of view and from a design point of view:
  • These functional groups are a light source unit, a diaphragm unit, a lens holder unit and a lens unit.
  • the Figures 1 and 2 show arrangements of the light source unit, the diaphragm unit and the lens unit.
  • Fig. 3 shows these three functional groups and additionally a lens holder unit.
  • FIG. 1 an arrangement of a light source unit 2, a diaphragm unit 4 and a lens unit 6 of a projection light module 10th
  • the lens unit 2 has a heat sink 12 made of a material of high thermal conductivity such as aluminum, magnesium, copper or an alloy containing such a metal.
  • the heat sink 12 has structures such as ribs or pins that increase its heat to the environment emitting surface.
  • rows 14 and 16 On a concavely curved side of the heat sink 12 are separated in two from each other formed rows 14 and 16 arranged as a plurality of light emitting diodes 18 configured semiconductor light sources.
  • the structures, which are not shown, which enlarge the surface of the heat sink 12, are preferably arranged on a rear side of the heat sink 12 which is opposite the concavely curved side.
  • the curvature can be continuous or be replaced by sections tilted against each other.
  • the first row 14 has four light-emitting diodes 18 arranged closely adjacent to each other.
  • the second row 16 has five light-emitting diodes 18 arranged closely adjacent to one another, so that the overall arrangement of the light-emitting diodes 18 results in a compact unit.
  • Each light-emitting diode 18 is associated with a designed as a front optics 20 intent optics.
  • the attachment optics 20 bundles the light emitted by the light emitting diodes 18 and preferably operates according to the known principle of total reflection and the refraction at the interfaces between the transparent optical material (for example PMMA (polymethyl methacrylate) or PC (polycarbonate) and the environment.
  • attachment optics 20 are provided as separate attachment optics.
  • the attachment optics can also be formed in one piece, in which case different regions of the attachment optics form the intentional optics assigned to the different semiconductor light sources 18. Then, a flat heat sink can be used, ie a heat sink without said concave curvature or mutually tilted planes.
  • the LEDs 18 of each row 14 and 16 can be controlled in groups. It is also possible to control the light-emitting diodes 18 individually in order to turn them on or off individually as needed. The light-emitting diodes 18 can also be dimmed individually or in groups.
  • Fig. 2 shows that the two planes 14 and 16 are tilted at a certain angle to each other. Alignment may, but does not have to, be such that optical axes 22 of the faceplate attachment optics 20 intersect with plane 22 optical axes 22 of the faceplate optics 20 at a focus point 24 thereafter.
  • Light emerging from the attachment optics 20 is partially shaded by an aperture 26, in some cases light passes the aperture 26.
  • the diaphragm 26 is arranged horizontally with its diaphragm surface 27, wherein the diaphragm surface 27 is at least partially mirrored on the side of the incident light in one embodiment.
  • the silvering is preferably produced with a metallic coating.
  • Fig. 1 shows, the diaphragm surface 27 along a light exit direction or light emission direction of the light emitting diodes 18, which coincides approximately with the optical axis 22 of the optical attachment 20, a step or edge 28 which separates two areas of the diaphragm 26 from each other to a law-compliant Corposcuro Limit.
  • the projection light module 10 in the further beam path has a secondary lens 30 designed as a secondary lens.
  • the secondary optics is preferably embodied as a single aspheric condenser lens 30 with focal lengths between 40 mm and 85 mm.
  • the converging lens 30 may, for lighting reasons at least partially a regular or have irregular textured surface. These structures have a height of about 3 .mu.m-30 .mu.m to the lens surface and serve to influence brightness gradients of the cut-off line and / or color effects in the imaging of the upper edge of the diaphragm.
  • the converging lens 30 is biconvex in the illustrated embodiment, but with two different sized radii formed.
  • An optical axis 32 of the converging lens 30 or of the projection light module 10 represents a horizontal plane of the projection light module 10.
  • the diaphragm surface 27 extends essentially along the optical axis 32 or the horizontal plane.
  • the diaphragm surface 27 may also be slightly tilted relative to the optical axis 32, so that a small angle is formed between the diaphragm surface 27 and the optical axis 32 (cf. FIG. 2 ).
  • the projection light module 10 is preferably constructed in such a way that the heat sink 12 with the planes 14 and 16 is arranged above the optical axis 32 so that the optical axes 22 of the attachment optics 20 intersect the optical axis 32 of the converging lens 30 at an acute angle.
  • the projection light module 10 serves to generate a light distribution in advance of the motor vehicle. Such a light distribution is generated by the projection light module 10 in the following manner:
  • the light emanating from the light-emitting diodes 18 and entering the respective associated optical head 20 is bundled in the optical head 20 and propagates preferably along the optical axes 22 of the optical head systems 2.0.
  • the Heat generated during operation of the light-emitting diodes 18 is dissipated via the heat sink 12.
  • the shutter 26 shadows a portion of the light to create a cut-off for the low beam or fog light in front of the vehicle.
  • the remaining portion of the light emerging from the attachment optics 20 impinges on the converging lens 30 and is projected by this with a desired light distribution, taking into account the realization of the cut-off line on the road ahead of the vehicle.
  • the step or edge 28 on the diaphragm 26 thereby generates a legally prescribed for a low beam kink in the projection of the cut-off line in front of the vehicle.
  • Such generation of a light distribution requires a certain spatial arrangement of each individual unit from the group of the light source unit 2, the diaphragm unit 4 and the lens unit 6 to the respective other two units of the group.
  • the units 2, 4 and 6 are stably connected together. The connection takes place via a lens holder unit 8, of which an embodiment in the Fig. 3 is shown.
  • Each of the three units 2, 4 and 6 has functional elements which serve for fastening and / or spatial fixing of the respective unit 2, 4, 6 on or in the lens holder unit 8.
  • the functional elements are latching elements and / or clip elements and / or receptacles for pins and / or projections and / or screws and / or rivets and / or in each case complementary Functional elements.
  • the light source unit 2 has functional elements 2a, while the diaphragm unit 4 has functional elements 4a and the lens holder unit 6 has functional elements 6a.
  • Fig. 3 shows the subject of the Figures 1 and 2 together with a lens holder unit 8 in the assembled state.
  • the light source unit 2 is held with functional elements 2b in the lens holder unit 8.
  • the functional elements 2b are complementary to the functional elements 2a.
  • the shutter unit 4 is held in accordance with functional elements 4b in the lens holder unit 8.
  • the functional elements 4b are complementary to the functional elements 4a.
  • the lens unit 6 is held in the lens holder unit 8 with functional elements 6b and 8a.
  • the functional elements 6b are complementary to the functional elements 6a and 8a.
  • the functional elements 8a are, for example, elongate recesses in the lens holder unit 8, which are designed to receive projections 6a of the lens unit in a form-fitting manner.
  • the remaining functional elements 2b, 4b and 6b are complementary to the other functional elements 2a, 4a and 6a functional elements, so that in pairs a locking connection, a screw, a rivet or other compound form-fitting and / or cohesive type, such as by Soldering welding or gluing results.
  • the lens unit 6 is particularly important for the appearance, since the condenser lens 30 must necessarily always be freely visible from a lighting-technical point of view.
  • the lens holder unit 8 is relevant to the appearance because it is at least partially visible. In addition, due to its supporting function, it is also technically relevant.
  • the aperture unit 4 outweighs the technical relevance.
  • the light source unit 2 serves for receiving and holding the semiconductor light sources, if necessary also for receiving and holding electronics for controlling and / or monitoring the semiconductor light sources, optionally with electrical plug connection, together with one or more heat sinks, and optionally for receiving and holding the optical heads.
  • the first subassembly has at least the light source unit having semiconductor light sources and is configured to hold the second subassembly in the projection light module.
  • the second assembly has at least the lens unit. According to the invention, the first assembly is configured to hold, without modification, either a first embodiment of the second assembly or a second embodiment of the second assembly different from the first embodiment in the projection light module, and a conformal light distribution with both the first embodiment and the second embodiment to create.
  • the interface between the two assemblies either between the light source unit 2 and the composite of the remaining three functional groups 4, 6 and 8, or the interface is between the lens unit 6 and the remaining in this case three functional assemblies 2, 4 and 8.
  • the second subassembly accordingly has, in addition to the lens unit 6, a lens holder unit 8 and a shutter unit 4.
  • the first assembly in addition to the light source unit 2 on a shutter unit 4 and a lens holder unit 8.
  • Fig. 4 shows a front view of an embodiment of a light source unit 2 together with a first embodiment of a lens unit 6 in the form of a converging lens 30.
  • the light source module 2 has in the illustrated embodiment holding structures 2.1, which are adapted to a mounting both the aperture Unit 4 and the lens holder unit 8 to allow.
  • the holding structures 2.1 have a first substructure 2.2 and a second substructure 2.3.
  • the first substructure serves for fastening the lens holder unit 8.
  • the second substructure serves for fastening the panel unit 4.
  • both substructures 2.1 and 2.2 have functional elements 2a, as described above with reference to FIGS Fig. 2 have already been explained.
  • Fig. 4 The object of Fig. 4 is used in particular for realizing an embodiment in which the first assembly has an aperture unit 4 in addition to the light source unit 2 and in which the second assembly has a lens holder unit 8 in addition to the lens unit 6.
  • the first assembly and in particular the light source unit 2 is designed such that lens units 6 and lens holder units 8 of different designs can be attached to the light source unit 2.
  • the FIGS. 4 to 6 show such combinations of the same light source unit 2 with different lens units 6.
  • Fig. 4 shows a combination of a light source unit 2 as a first assembly with an embodiment of a second assembly whose lens unit 6 has a circle-limited converging lens 30.
  • Fig. 5 shows a combination of a light source unit 2 as a first assembly with an embodiment of a second assembly whose lens unit 6 has a conical lens 30 limited by a rectangle.
  • Fig. 6 shows a combination of a light source unit 2 as a first assembly with an embodiment of a second assembly whose lens unit 6 has a converging lens 30, whose shape of the basic forms of Fig. 4 and 5 differs freely and thus illustrates the available design scope.
  • the light source unit 2 is designed so that it can be combined with other embodiments of lens units 6 and lens holder units 8 without changes.
  • the first module represents the component that is more technically embossed and the same for all projection light modules 10, while the second module represents a variable design component that rather shapes the appearance of the projection light module.
  • the light source unit together with the aperture unit forms a not assembled at headlight or little visible and thus not relevant to the appearance of the first assembly, while the lens holder unit forms a preassembled design unit together with the lens unit , This corresponds, for example, to the subject matter of FIGS. 4 to 6 ,
  • the lens unit, the lens holder unit and the diaphragm unit are combined to form a second module.
  • the position of the aperture unit relative to the lens unit must be adjusted as a rule.
  • the summary of the lens unit, with the lens holder unit and the diaphragm unit to a second assembly in this context has the advantage that the adjustment during the pre-assembly of the second module can be done. This is easier to manufacture than if the adjustment takes place during assembly of the first module with the second module.
  • Constant parts of a projection light module modular system when the light source unit, the diaphragm unit and the Blendehalter unit are combined to form a fixed, first assembly. This also corresponds, for example, to the subject matter of Figures 2 and 3 However, the interface between the first assembly and the second assembly then extends between that of the lens holder assembly 8 and the lens unit 6.
  • the lens unit has a defined interface with functional elements, as in the form of functional elements 6a in connection with the Figures 2 and 3 have been explained.
  • a part of a mechanically connected to the condenser lens 30 and the condenser lens 30 holding part such as a lens holder ring or a lens holding frame, which circulates the outer contour of the condenser lens 30, for example, so that the condenser lens of the ring or Frame is framed and held.
  • a frameless mechanical support may be used, in which the condenser lens 30 is connected, for example, with two metallic spacers, which in turn are adapted to be connected to the lens holder unit.
  • the functional elements of the lens unit used for connecting the lens holder unit to the lens unit are an integral part of the lens, which can be produced, for example, in the case of plastic lenses by the possibilities of plastic injection molding.
  • the functional elements are formed integrally formed with the optically active parts of the converging lens in an injection molding process to the optically active parts.
  • these functional elements are part of a transparent or non-transparent component of a lens unit produced by a two-component injection molding process.
  • collecting lenses 30 are made of plastic in one piece, in particular in a process cycle, by injection molding. Due to the relatively large thickness in the center of the converging lenses 30, they must be sprayed, cooled and demolded in an extremely complicated process and very slowly, as otherwise air inclusions in the plastic material, shrinkage of the material, deformation of the workpiece and / or so-called vacuoles may occur. With a center lens approximately 30 mm thick, the cycle time for its production in a process cycle is about 18 minutes. In addition, the quality of the converging lenses 30 produced by the known method is not optimal in terms of shape, contour and surface structure, because despite the greatest care in injection molding due to the large thickness of the converging lenses 30 errors in an acceptable cycle time can not be completely prevented.
  • Another disadvantage of manufacturing in one process cycle is that the possible shape of the converging lenses 30 is extremely limited. For this reason, the converging lenses 30 produced in one process cycle usually have a very simple shape.
  • a more flexible design of the condenser lens with regard to its shape and contour and the injection molding of functional parts is possible only to a limited extent with a manufacturing process in a process cycle.
  • FIG. 7 1 shows a flowchart as an exemplary embodiment of a method for producing a collecting lens 30 having functional elements 6 a.
  • a first step 34 which corresponds to a first process cycle, a blank of the converging lens 30 molded from plastic.
  • the blank does not yet correspond in its dimensions, its shape and its contour to the final converging lens 30.
  • the blank in the center has a smaller thickness than the finished converging lens 30. If, for example, the finished converging lens 30 have a thickness in the center of about 24 mm should, for example, the blank could have a thickness in the center of only 12 mm. Even with regard to the surface finish of the blank does not yet meet the requirements of the finished positive lens 30.
  • the blank produced in the first process cycle 34 is at least partially encapsulated with an additional layer of plastic.
  • the overmolding with an additional plastic layer serves on the one hand to produce the desired dimensions, as well as the desired shape and contour of the converging lens 30.
  • the other dimensions, the shape and the contour of the finished converging lens 30 can by spraying additional Plastic layers are produced on the blank in the second process cycle 36. Furthermore, the extrusion coating of the blank with an additional plastic layer serves to achieve the desired surface quality of the finished converging lens 30.
  • the additional plastic layer sprayed onto the blank compensates for unevenness in the surface of the blank, penetrates even the finest scratches, notches and quirks in the surface of the blank and fills them completely.
  • the finished converging lens 7 has the desired dimensions, in particular the desired thickness and the desired shape and contour with the integrally formed functional elements.
  • the method then ends in a step 38.
  • FIG. 8 shows a section through such a converging lens along the line VIII-VIII of the Fig. 2 .
  • a blank 40 injection-molded in the first process cycle forms a core of a central region of the condenser lens 30.
  • the blank 40 has at its ends the functional elements 6a already explained above, which serve to connect the condenser lens 30 to the lens holder unit 8.
  • the final shape of the converging lens 30 is produced by molding the blank 40 with further plastic 42.
  • the functional elements 6a can also be generated in the second process step.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
EP12151359.2A 2011-02-02 2012-01-17 Module lumineux de projection d'un phare de véhicule automobile monté de manière modulaire Active EP2484959B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011003497A DE102011003497B4 (de) 2011-02-02 2011-02-02 Modular aufgebautes Projektionslichtmodul eines Kraftfahrzeugscheinwerfers

Publications (3)

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EP2484959A2 true EP2484959A2 (fr) 2012-08-08
EP2484959A3 EP2484959A3 (fr) 2013-07-03
EP2484959B1 EP2484959B1 (fr) 2021-03-10

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EP (1) EP2484959B1 (fr)
JP (1) JP6018759B2 (fr)
CN (1) CN102628574B (fr)
DE (1) DE102011003497B4 (fr)

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WO2014027019A1 (fr) * 2012-08-14 2014-02-20 Hella Kgaa Hueck & Co. Système d'éclairage comprenant un dispositif de refroidissement et un corps optique
FR3003336A1 (fr) * 2013-03-18 2014-09-19 Valeo Vision Dispositifs de signalisation et/ou d'eclairage pour vehicules automobiles

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JP6024952B2 (ja) 2012-07-19 2016-11-16 パナソニックＩｐマネジメント株式会社 画像送信装置、画像送信方法、画像送信プログラム及び画像認識認証システム
DE102012213842A1 (de) * 2012-08-03 2014-02-06 Automotive Lighting Reutlingen Gmbh Lichtmodul
AT513738B1 (de) * 2012-12-20 2014-07-15 Zizala Lichtsysteme Gmbh Leuchteinheit für einen Scheinwerfer
JP6171168B2 (ja) * 2013-02-27 2017-08-02 市光工業株式会社 車両用前照灯
CN106439680A (zh) * 2016-09-29 2017-02-22 马瑞利汽车零部件(芜湖)有限公司 一种形成近光光型的透镜
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CN102628574A (zh) 2012-08-08
DE102011003497A1 (de) 2012-08-02
EP2484959B1 (fr) 2021-03-10
JP6018759B2 (ja) 2016-11-02
JP2012160453A (ja) 2012-08-23
CN102628574B (zh) 2017-05-31
DE102011003497B4 (de) 2012-12-27

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