CN103062696A - Optical module of motor vehicle lightning device - Google Patents
Optical module of motor vehicle lightning device Download PDFInfo
- Publication number
- CN103062696A CN103062696A CN201210404538XA CN201210404538A CN103062696A CN 103062696 A CN103062696 A CN 103062696A CN 201210404538X A CN201210404538X A CN 201210404538XA CN 201210404538 A CN201210404538 A CN 201210404538A CN 103062696 A CN103062696 A CN 103062696A
- Authority
- CN
- China
- Prior art keywords
- optical module
- shadow shield
- light
- cooling body
- semiconductor light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- 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
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
-
- 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/39—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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
- F21S41/435—Hoods or cap-shaped
-
- 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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/37—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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
- F21S43/51—Attachment thereof
Abstract
The invention relates to an optical module (10) of a motor vehicle lightning device. The optical module (10) has: at least one semiconductor light source (14) for emitting light; a main optical unit (12) for constricting at least one part of the light emitted by the at least one semiconductor light source (14); a light shield (16) subject to the at least one semiconductor light source (14); and a cooling piece (20) in at least indirect thermal contact with the at least one semiconductor light source (14). In order to fabricate the optical module (10) simply and cost-effectively, at least one part of the light shield (16) is suggested to be an element of integration of the cooling piece (20).
Description
Technical field
The present invention relates to a kind of optical module of lighting device of motor vehicle.This optical module has: at least one is for the semiconductor light sources that emits beam; The main optical unit, it is used for making at least a portion constriction of the light that is sent by this at least one semiconductor light sources; Be subordinated to the shadow shield of this at least one semiconductor light sources; Cooling body, itself and this at least indirectly thermo-contact of at least one semiconductor light sources.
Background technology
In the prior art, known various lighting device for motor vehicle.Therefore be divided into headlight and car light.Headlight only is arranged on the positive position of vehicle.It is except by allowing other traffic participant see that automobile realizes the traffic safety, especially also for example be used for the form with luminous lamp, high beam or fog lamp, or with other form of headlight light function (for example self-reacting light distribute) arbitrarily, illuminate the track of vehicle front, improve sight line in order to be respectively the driver.Headlight can comprise at least one incandescent lamp, gas-discharge lamp or light emitting diode (LED) as light source.They can namely have towards the reflector of light source reflection according to principle of reflection work, and this reflector reflection is used for producing the light of expecting in motor vehicle the place ahead and is distributed by the light that light source sends.Alternative is, headlight also can be by the work of projection principle, wherein it has main optical unit (for example reflector or additional optical block learn), be used for making the light constriction that is sent by light source, and has a secondary optics unit (for example lens or reflector), be used for the image formation by rays that constriction got up in motor vehicle the place ahead, distribute with the light that produces expectation.
The effect of car light mainly is, by allowing other traffic participant see that automobile realizes traffic safety.Therefore, the front-mounted lamp in the positive position of motor vehicle for example is used as positioning lamp, flash lamp or daytime running lamps and is come usefulness, and the taillight in the motor vehicle tail scope for example is used as brake lamp, back light or flash lamp and is used.Side lamp can be used as side mark lamp (side marker lamp of so-called activation) and uses.Car light is used for realizing one or more lighting functions.Front-mounted lamp can be integrated in the headlight, but it also can constitute independent light fixture.Common integrated multiple lamp function in taillight.Car light has incandescent lamp or light emitting diode (LEDs) usually as light source, and preferably carries out work by principle of reflection.
When using light emitting diode as light source in lighting device, light emitting diode usually arranges and is fixed on the carrier element (for example electronic circuit board), and contacts conductively by this carrier element.This carrier element self can be arranged on the cooling body, the heat that this cooling body produces when being used for deriving the light emitting diode operation.
Be known that in addition this at least one light source has been equipped with shadow shield in lighting device.This shadow shield can constitute simple visual baffle, its not impact of photodistributed structure on producing, and when visual lighting device from the outside, prevent direct visual light source.But this shadow shield also can be configured and disposed like this, and namely it may affect photodistributed structure.Therefore for example may be considered that also that shadow shield has stopped the direct irradiation of light source outwardly, so light distributes and only produce from the light by main optical unit constriction or the projection of secondary optics unit, rather than also from the light that is directly sent by light source, produce.
The feature of the shadow shield of optical module especially is one or more in the following performance:
-this shadow shield is not arranged in the focus area of main optical unit or secondary optics unit,
-this shadow shield be positioned at light source near,
-this shadow shield covers the light that is directly sent by light source, does not namely have light to be sent by the reflecting surface of the main optical unit that constitutes reflector, and
-shadow shield especially covers the light that is roughly irradiated at direction of traffic by light source, or covering the light that is sent by light source, this light may deflect into after the reflecting surface reflection by the main optical unit that constitutes reflector in the scope that the light distribution may be disturbed.
PES-anti-dazzle plate structure in contrast, it is used for producing the photodistributed terminator that blocks, and is arranged in the focus area of main optical unit and secondary optics unit, and basically covers the part by the light of reflector reflection.The edge of PES-anti-dazzle plate structure, for example the leading edge of the PES-anti-dazzle plate structure of the top edge of the vertical PES-anti-dazzle plate structure of placing or horizontal positioned in the imaging of motor vehicle the place ahead, is used for producing photodistributed terminator by the secondary optics unit.
Optical module in the modern comfortable headlight should be propagated photodistributed specific region in special mode, satisfies the boundary condition that requires legally thereby light is distributed.Therefore in the optical module of headlight, for example in photodistributed discrete point, in the measurement screen of putting with the optical module interval, need specific minimum and maximum illumination intensity value, for example above the photodistributed terminator that blocks.In order to reach the specific maximum illumination intensity value that allows in photodistributed discrete point, shadow shield consists of so targetedly and is arranged in the light path, namely blocks the light that a part is pointed to these discrete points.May be considered that a plurality of such shadow shields are arranged in the light path of optical module.
For the light that the blocks distribution (for example dipped headlights, fog lamp) that produces headlight or the variable light distribution of blocking, in the light path of headlight anti-dazzle plate structure can be set, it has blocked the light that sent by at least one light source or at least by the part of the light of main optical unit constriction.Because such anti-dazzle plate structure usually be applied in projection module (so-called projection-type system, PES) in, so they are also referred to as the PES-anti-dazzle plate structure.This anti-dazzle plate structure can constitute flat shadow shield element, and it is oriented in the horizontal plane that comprises optical axial, and is perhaps vertical with it.This anti-dazzle plate structure has the edge, and this edge can be by the secondary optics unit in the imaging of motor vehicle the place ahead, as the photodistributed terminator that blocks.The trend at this edge can change, to reach the variable light distribution of adaptation situation.But this anti-dazzle plate structure is constructed to get integrated moving, by moving on to more or less in the light path, can reach the variable light distribution of adaptation situation.
But also may be considered that, need not in light path, to use extra anti-dazzle plate structure, just can produce the light that blocks and distribute.For this reason, the main optical unit, namely for example reflector or the additional optical block learn that is subordinated at least one light emitting diode can consist of like this, be that they need not other aid and just can make the such constriction of light, so that it can be directly or indirectly by after the secondary optics cell projection, produce the light that blocks and distribute.
From DE10 2,007 050 924 A1 for example known a kind of constitute lighting module, be applied in the optical module in the front headlight of motor vehicle, it comprises light emitting diode (LED) as light source.The light that is sent by LED arrives on the main optical unit that form is reflector, and by its direction reflection towards the secondary optics unit that constitutes lens.Be provided with the PES-anti-dazzle plate structure in the light path between main optical unit and secondary optics unit.This LED directly has been equipped with the cooling body that is used for deriving heat by loading plate, and this LED is fixed on this loading plate.The impact of this lighting module is the part that is called the integrated component in optics storehouse according to the optics (especially reflector, shadow shield and lens) of irradiation performance.
At this, the shortcoming of known optical module is, light emitting diode is lower in off position can see inside into optical module against the light exit direction basically when visual from the outside.This point can produce extreme interference effect, and visually especially so not attractive in appearance.Under on-state, the light that is directly sent by LED may make oncoming traffic participant dazzle.In addition, in the installation frame of optical module, require the optical unit storehouse aspect LED-cooling body-unit, to carry out numerous and diverse layout, locating and orienting.In by the document, in the known optical module shadow shield is not set.
Because structure space available in the modern optical module is less, and because consequent reflector size less, so optical module is aspect optical element layout, locating and orienting or adjustment to each other and very responsive aspect the light source.This is particularly useful for the layout of shadow shield aspect light source.The tolerance that allows is defined very littlely.
Summary of the invention
Therefore, the objective of the invention is, construct like this and improve the optical module with shadow shield, be about to shadow shield and be down to minimum with respect to the expense that light source carries out layout, locating and orienting or adjustment.In addition, this optical module should be able to be made in simple and cheap mode in bulk.
In order to realize this purpose, from the optical module of aforementioned type, the present invention's suggestion, in optical module, at least a portion of shadow shield is the integrated combination part of cooling body.By in the focus area that light source is arranged on the main optical unit or be arranged on focus near, the light that produces optical module distributes.This main optical unit preferably constitutes reflector.The main direction of illumination of semiconductor light sources tilts or vertically extends towards the light exit direction, in this light exit direction, produce photodistributed light by emphasis leave optical module.This shadow shield preferably be arranged on light source near.
Cooling body with this at least a portion of shadow shield can be made by metal or plastics, and is installed in front headlight of motor vehicle or the automotive lamp.Shadow shield is arranged on the cooling body like this, and namely it is subordinated to semiconductor light sources or one group of semiconductor light sources in function aspects at least.By this at least one semiconductor light sources is fixed on the cooling body at accurate location, also can automatically determines shadow shield about the relative position of light source, and no longer need individually adjustment.
The present invention is with such basis that is contemplated that, i.e. shadow shield moulding concrete with it irrespectively direct and cooling body is formed in unique member.At this advantageously, when making this cooling body-shadow shield-parts, shadow shield with respect to for the installation site of this at least one semiconductor light sources setting arranges, therefore can omit afterwards shadow shield installation and adjustment.
By two component integrations by in the optical module of the present invention, can optimize the heat transmission between cooling body and the shadow shield.By being integrated in the shading element in the cooling body, can enlarging the surface of cooling body, and therefore improve its cooling effect.In addition, can avoid forming the gap between shadow shield and cooling body by the present invention, as may occurring when these two parts are made separately in the prior art, and light may ooze out with the light of not expecting by this gap.Needn't make individually again shadow shield now; Required mould and the quantity of installing component also can advantageously reduce.This point has reduced manufacturing and the installation cost of optical module significantly.
Advantageously, shadow shield is arranged in the optical module like this, and namely this shadow shield is arranged on the place ahead of this at least one semiconductor light sources at the direction of visual lines of being seen by export-oriented optical module or lighting device inside.This semiconductor light sources preferably comprises one or more light emitting diodes.By this layout, at least to a great extent, preferably avoid directly visual on semiconductor light sources from the outside fully.Avoid in addition, the direct light of semiconductor light sources can be used as a photodistributed part towards external exposure.Shadow shield can be designed to monomer or many bodies, wherein only has unique parts of shadow shield to link to each other with cooling body in the embodiment of many bodies.Other parts of shadow shield (for example be used for changing photodistributed movable part) are for example fixing or be arranged on other parts of optical module or lighting device.In mounted optical module, these single part preferred addition are to shadow shield.
In pressing optical module of the present invention, shadow shield preferably is arranged in the light path of optical module.Before light was run into the main optical unit, this shadow shield can be by its moulding and the layout irradiation conical surface (Abstrahlkegel) that for example affects the light that is sent by this at least one semiconductor light sources.Perhaps, before light arrived the secondary optics unit that motor vehicle the place ahead maybe may exist, this shadow shield can affect the light by main optical unit constriction.At last, before light is run into the track in motor vehicle the place ahead or is surveyed screen, shadow shield also can affect sent by the secondary optics unit, be used for light in the imaging of motor vehicle the place ahead.At this, shadow shield can affect the light distribution (especially illumination intensity distribution) that is produced by optical module.Shadow shield especially can have the light that is distributed and to be consisted of by light for must blocking to property, and therefore less illumination intensity can occur in the photodistributed scope that may run into the light that blocks.
For example hang down the photodistributed maximum illumination intensity value that allows in the discrete point above the photodistributed terminator that blocks by this way.At this, for example refer to the critical value that required by the law maker, wherein for example in predefined angle and predefined spacing the status requirement with respect to optical module in light distributes, have special illumination.This point for example is used for illuminating better the traffic indication board on the edge, track.
Certainly also possible is that shadow shield is arranged on the outside of the light path of optical module, and has the function of pure visual baffle.The effect of shadow shield in this function be basically, hides semiconductor light sources when visual from the outside.
Especially advantageously, the main optical unit has reflector in the preferred structural scheme of optical module, and at least a portion of shadow shield and reflector are the integrated parts of cooling body.Therefore, saved the individual cost that is used for independent manufacturing, installation and adjustment reflector.In this structural scheme, when cooling body-shadow shield of making combination-reflector parts, can guarantee that reflector is with respect to the high position accuracy of shadow shield.
In pressing optical module of the present invention, this at least one semiconductor light sources directly or by carrier element (for example electronic circuit board) is fixed on the cooling body, therefore can guarantee the good transfer of heat between these two parts.At this, preferably realize conductive contact by carrier element.Certainly also may be considered that, directly realize conductive contact at cooling body, for example by bonding line.Also possible at this is that the carrier element that is used for this at least one semiconductor light sources also is the part of cooling body.At this, carrier element for example can be injection-moulded on the cooling body that is made of plastics.
In other preferred structural scheme of optical module, cooling body is made with casting die together with its integrated component.This means, cooling body and be integrated in its inside parts made by metal (for example aluminium or zinc) or plastics.When using plastics as material, casting method also is feasible.In die casting or casting method, cooling body is made with less tolerance variations simply in large quantity at an easy rate together with its all integrated components.After making the integrated component of cooling body together with it, the vitals of optical module has just made in unique job step, does not wherein need these parts of adjustment or only need to come adjustment with quite little degree.Therefore, especially make the tolerance that connects each other together that minimum is down in the impact of optical module.
In addition advantageously, shadow shield has the performance of reflection ray.Therefore, the light of this at least one semiconductor light sources is reflexed on the main optical unit (for example reflector) by shadow shield, and the light that therefore is shaped targetedly by the main optical unit only is used for producing light and distributes.At this, the absorption of light on shadow shield can be down to minimumly, and improve the efficient of optical module.This means that the light that all light that sent by this at least one semiconductor light sources all can be used to produce expectation basically distributes.
In addition advantageously, shadow shield is lighttight.When observing the inside of optical module from the outside, this point can realize that the visual protection of this at least one semiconductor light sources hides.Certainly also may be considered that, shadow shield at least part of or at least the light approach axis be printing opacity or local transparent.Therefore, provide the instrument that is used for satisfying critical illumination value (Overheadbeleuchtungswerten).The surface of the shadow shield of local transparent can consist of targetedly like this, and namely measurement point shines with the intensity of expecting or predesignate for the reason of statutory rules.In addition, for example also possiblely be, light can penetrate shadow shield from this at least one semiconductor light sources on the one hand, light is run on reverse direction on the shadow shield and by rights reflection from the outside but then, and the light source that therefore is hidden in the shadow shield back is sightless by the mode of Venice mirror (venezianischen Spiegel) as expectation.
Description of drawings
Other features and advantages of the present invention draw from the following description and drawings.Should be understood that above-mentioned in the framework of the present invention and followingly also the feature of setting forth is not only occurred in the combination of mentioning separately, can also be with other combination or occur individually.Embodiments of the invention shown in the drawings, and elaborate in the following description.Form with signal shows respectively:
Fig. 1 shows the part by the known lighting device of prior art;
Fig. 2 show by the first preferred embodiment by optical module of the present invention;
Fig. 3 show by the second preferred embodiment by optical module of the present invention;
Fig. 4 shows by lighting device of the present invention, and it has by the 3rd preferred embodiment two by optical module of the present invention;
Fig. 5 at length show Fig. 4 by optical module of the present invention.
The specific embodiment
Fig. 1 show motor vehicle, by the part of the known lighting device of prior art.This lighting device constitutes front headlight of motor vehicle at this.The bossed reflector 12 of optical module 10 tools of known headlight is as the main optical unit, and it has been equipped with at least one and has constituted the light source of semiconductor light sources, especially light emitting diode.This light emitting diode be can't see in Fig. 1 because it is arranged on the below of shadow shield 16, in order to avoid from the outside of headlight on direction of visual lines 18 visual to.In addition, the light that shadow shield 16 is also avoided being sent by light emitting diode directly leaves headlight, does not namely reflect at reflector 12.Shadow shield 16 be arranged on light source near, so it can satisfy previously described function.In addition, shadow shield 16 preferably is arranged on the outside of the focus area of main optical unit 12.
Main the passing through of light distribution that is produced by headlight produces at the light of reflector 12 reflections.Shadow shield has to produce photodistributed miscellaneous function in case of necessity.Shadow shield 16 constitutes the parts of independent manufacturing at this, and it must arrange, fixing and adjustment is on other parts of the cooling body of light emitting diode or headlight.
Fig. 2 perspective there is shown the first preferred embodiment by optical module 10 of the present invention.This optical module 10 comprises cooling body, and one or more light emitting diodes 14 are coupled with cooling body aspect thermal technology.This at least one light emitting diode 14 preferably is arranged in the focus area of reflector 12, or is arranged on this focus neighbouring (with reference to Fig. 3).Reflector 12 preferably has the optical reflection face that is made of similar parabolical free profile, and they do not have the common focus on the script meaning.This focus area consists of by cloud (Wolke), and the focus that consists of the free profile of reflector 12 is located in this cloud.May be considered that also reflector 12 comprises the optical reflection face with a plurality of facets, wherein these facets are made of different similar parabolical free profiles respectively.In this structure of reflector, the focus of single facet or free profile is arranged in cloud, and this focus cloud consists of focus area.In the inside of this cloud or this volume this at least one light source 14 should be set.
This light emitting diode 14 preferably is fixed on the cooling body 20 in definite position by carrier element 24, and this carrier element for example constitutes circuit board.This light emitting diode 14 is fixed on carrier element 24, and preferably contacts conductively by it.In order to derive better heat, cooling body 20 has cooling fin 22.Cooling body 20 can be made by heat transmission good plastics or metal (for example aluminium).Shadow shield 16 is integrated parts of cooling body 20, and preferably makes in common manufacturing step with it, for example by die casting or casting method.That is, cooling body 20 and shadow shield 16 form common parts.
On cooling body 20, be provided with plate 26 with shadow shield 16 opposed ends, this plate arranges vertically with the surperficial extending part of cooling body 20.This plate 26 is the integrated part of cooling body 20 equally.This plate has aperture 28, is used for for example optical module 10 is fixed in lighting assembly for vehicles or its housing.Alternatively or additionally, also can be fixed on the reflector (not shown) on the cooling body 20 by aperture 28.In addition, be provided with plug contact element 30 in the side of cooling body 20, be used for realizing the energy supply of optical module 10 or light emitting diode 14 and/or controlling.This plug contact element 30 constitutes connector, is used for holding corresponding joint (not shown).
Fig. 3 perspective there is shown the second preferred embodiment by optical module 10 of the present invention.Different from the optical module 10 of Fig. 2 is that reflector 12 equally also is the integrated part of cooling body 20.The effect of this reflector 12 is to be reflected from optical module 10 in light exit direction 32 by light emitting diode 14 light that send and that reflected by visual baffle.By the light of reflector 12 reflection directly or for example arrive by another effective optical element that form is the secondary optics unit of lens or other reflector, the light that is used for producing in motor vehicle the place ahead expectation distributes.
Press the embodiment of Fig. 2 and 3, the shadow shield 16 that is arranged on the cooling body 20 of optical module 10 is mainly used to hide light emitting diode 14 at this, in order to visually from the outside on direction of visual lines 18 avoid light emitting diode 14 in the optical module 10 time and be arranged on circuit element (electronics and/or electric component, conductor circuit etc.) on the carrier element 24.But it also can be assisted extraly or replenish by the function of optical module 10 of the present invention at the light technical elements, because shadow shield 16 preferably is arranged in the light path of optical module 10, and for example avoids light emitting diode 14 direct irradiation outwardly.Therefore, shadow shield 16 also can affect the photodistributed illumination intensity distribution that is produced by optical module 10.In addition, shadow shield 16 also can affect the trend of the photodistributed terminator that is produced and blocked by optical module 10.Shadow shield 16 can consist of like this at this, and namely the edge of shadow shield 16 is conducive to form the photodistributed terminator that blocks.Also possiblely at this be, the special moulding acting in conjunction of shadow shield 16 and reflector 12, to produce the terminator of expectation, namely 16 of shadow shields partly are responsible for the formation of terminator.
The function of the shadow shield 16 of optical module 10 is, block that light emitting diode 14 by optical module 10 sends and in the part of the light of affiliated reflector 12 reflections, therefore (the photodistributed terminator that is for example blocking above) can not surpass the illumination intensity value of predefined maximum in photodistributed specific region.These shadow shields constitute respectively the shading element that basically is strip, and it consists of like this and is arranged in the reflection cavity, and the light that namely reaches expectation distributes, and it has the illumination intensity distribution of expectation.At design angle, the side that deviates from mutually with reflection cavity of shadow shield 16 can almost at random consist of.Because see this side of shadow shield 16 in reflection cavity on direction of visual lines 18, it has determined the design of headlight fatefully.
Fig. 5 has illustrated the optical module 10 of the headlight of Fig. 5 in zoomed-in view.Can see that shadow shield 16 also is the integrated part of cooling body 20 at this.
Advantage by optical module 10 of the present invention is numerous and diverse layout, location and the adjustment that can omit cooling body (and the light emitting diode 14 on accurate location is fixed on it) and shadow shield 16 when making and optical module 10 is installed.Therefore, optical module 10 can be especially simple, fast and cost make to one's profitly.This advantage also can be improved thus, if other parts of optical module 10 or element (for example reflector 12) constitute the integrated part of cooling body 20 equally.These parts of optical module 10 or element (for example shadow shield 16 reflectors 12) are the integrated parts of cooling body 20, and can coordinated with each otherly aspect structure and manufacturing technology in unique job step as one man consist of.Cooling body 20 can be made with very little manufacturing tolerance at this together with its all integrated component and element.
Each optical module 10 also can arrange a light emitting diode 14, replaces a plurality of light emitting diodes 14 of each optical module 10.When using a plurality of light emitting diode 14, these light can send the identical or different light of color.Also can consider to use such light emitting diode 14, namely it has the semiconductor chip of launching a plurality of light.This chip can send the identical or different light of color.When using a plurality of light emitting diodes 14 or semiconductor chip, can control separately light emitting diode 14 or chip, namely connect, close and dim out.
Claims (11)
1. the optical module of the lighting device of a motor vehicle (10), this optical module (10) has:
-at least one is for the semiconductor light sources (14) that emits beam;
-main optical unit (12), it is used for making at least a portion constriction of the light that is sent by described at least one semiconductor light sources (14), and wherein this at least one semiconductor light sources (14) is arranged in the focus area of described main optical unit (12);
-being subordinated to this at least one semiconductor light sources (14) and being arranged near its shadow shield (16), this shadow shield hides by this at least one semiconductor light sources (14) at least partly at optical module
(10) light that directly sends on the light exit direction (32); And
-cooling body (20), this cooling body and this at least indirectly thermo-contact of at least one semiconductor light sources (14),
It is characterized in that at least a portion of described shadow shield (16) is the integrated part of described cooling body (20).
2. optical module according to claim 1 (10) is characterized in that, described shadow shield (16) is arranged on this at least one semiconductor light sources (14) before at the direction of visual lines (18) of seeing from the outside lighting device.
3. optical module according to claim 1 and 2 (10) is characterized in that, described shadow shield (16) is arranged in the light path of described optical module (10).
4. optical module according to claim 3 (10) is characterized in that, the photodistributed illumination intensity distribution that described shadow shield (16) impact is produced by optical module (10).
5. according to claim 3 or 4 described optical modules (10), it is characterized in that the photodistributed trend that described shadow shield (16) impact is produced and blocked by described optical module (10).
6. according to claim 3 to each described optical module (10) of 5, it is characterized in that the illumination intensity value in the zone of described shadow shield (16) impact above terminator.
7. according to each described optical modules (10) of the claims, it is characterized in that, described main optical unit comprises reflector (12), and at least a portion of described shadow shield (16) and reflector (12) are the integrated parts of described cooling body (20).
8. according to each described optical module (10) of the claims, it is characterized in that described cooling body (20) is together with its integrated component (16; 12) make with casting die.
9. according to each described optical module (10) of the claims, it is characterized in that described shadow shield (16) has catoptrical characteristic.
10. according to each described optical module (10) of the claims, it is characterized in that described shadow shield (16) is light-permeable not.
11. each the described optical module (10) according to the claims is characterized in that this at least one semiconductor light sources comprises light emitting diode (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011084890.8 | 2011-10-20 | ||
| DE102011084890A DE102011084890A1 (en) | 2011-10-20 | 2011-10-20 | Light module for illumination device e.g. headlight of motor car, has beam diaphragm that is arranged as integral portion of heatsink which is arranged indirectly and thermally in contact with semiconductor light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062696A true CN103062696A (en) | 2013-04-24 |
Family
ID=48051106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210404538XA Pending CN103062696A (en) | 2011-10-20 | 2012-10-22 | Optical module of motor vehicle lightning device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103062696A (en) |
| DE (1) | DE102011084890A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930430A (en) * | 2014-03-21 | 2015-09-23 | 法雷奥照明公司 | Light Module Of A Motor Vehicle |
| KR20160123138A (en) * | 2015-04-15 | 2016-10-25 | 에스엘 주식회사 | Lamp for vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3021459B1 (en) * | 2014-05-20 | 2016-06-03 | Valeo Vision | LIGHT EMITTING MODULE WITH ELECTROLUMINESCENT DIODE AND OCCULTOR |
| DE102014108354A1 (en) * | 2014-06-13 | 2015-12-17 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Headlight arrangement of a vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1518752A2 (en) * | 2003-09-24 | 2005-03-30 | Ichikoh Industries, Ltd. | Vehicle lamp |
| JP2008218157A (en) * | 2007-03-02 | 2008-09-18 | Stanley Electric Co Ltd | Vehicle headlight |
| CN101387378A (en) * | 2007-10-23 | 2009-03-18 | 裕克施乐塑料制品（太仓）有限公司 | LED illuminance module special for vehicle |
| CN101749616A (en) * | 2008-12-11 | 2010-06-23 | 市光工业株式会社 | Vehicular lamp |
| CN102221173A (en) * | 2010-04-14 | 2011-10-19 | 株式会社电装 | Headlamp assembly |
-
2011
- 2011-10-20 DE DE102011084890A patent/DE102011084890A1/en not_active Withdrawn
-
2012
- 2012-10-22 CN CN201210404538XA patent/CN103062696A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1518752A2 (en) * | 2003-09-24 | 2005-03-30 | Ichikoh Industries, Ltd. | Vehicle lamp |
| JP2008218157A (en) * | 2007-03-02 | 2008-09-18 | Stanley Electric Co Ltd | Vehicle headlight |
| CN101387378A (en) * | 2007-10-23 | 2009-03-18 | 裕克施乐塑料制品（太仓）有限公司 | LED illuminance module special for vehicle |
| CN101749616A (en) * | 2008-12-11 | 2010-06-23 | 市光工业株式会社 | Vehicular lamp |
| CN102221173A (en) * | 2010-04-14 | 2011-10-19 | 株式会社电装 | Headlamp assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104930430A (en) * | 2014-03-21 | 2015-09-23 | 法雷奥照明公司 | Light Module Of A Motor Vehicle |
| CN104930430B (en) * | 2014-03-21 | 2019-11-19 | 法雷奥照明公司 | Lighting unit for motor vehicles |
| KR20160123138A (en) * | 2015-04-15 | 2016-10-25 | 에스엘 주식회사 | Lamp for vehicle |
| KR102348887B1 (en) | 2015-04-15 | 2022-01-11 | 에스엘 주식회사 | Lamp for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102011084890A1 (en) | 2013-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102865539B (en) | Vehicle headlamp | |
| CN210219602U (en) | Car light optical element, car light module and vehicle | |
| CN112262284B (en) | Motor vehicle headlight with at least two light modules | |
| US20130250598A1 (en) | Fog lamp and the like employing semiconductor light sources | |
| CN108375048B (en) | Vehicle-mounted lamp | |
| US9915404B1 (en) | Optical element and car lamp | |
| EP2075500B1 (en) | Vehicle headlamp | |
| EP2075501B1 (en) | Vehicle headlamp | |
| KR101381862B1 (en) | Automotive lamp assembly | |
| CN102691960A (en) | Motor vehicle lighting device and motor vehicle headlamp with such a lighting device | |
| CN103062696A (en) | Optical module of motor vehicle lightning device | |
| KR20130123200A (en) | Lamp apparatus for an automobile | |
| CN109210483B (en) | Vehicle lamp | |
| CN109578932B (en) | Vehicle lamp | |
| CN107278249B (en) | Lighting device for a motor vehicle | |
| CN112752925A (en) | Car light optical element, car light module, vehicle headlamp and vehicle | |
| KR101342060B1 (en) | Automotive lamp assembly | |
| KR20140133063A (en) | Automotive lamp assembly | |
| KR101500387B1 (en) | Head light module | |
| KR200481980Y1 (en) | Lamp for vehicle | |
| CN220338283U (en) | Lamp for vehicle | |
| KR20150004646U (en) | Lamp for vehicle | |
| KR101472481B1 (en) | Fog lamp for car with led | |
| CN215831837U (en) | Illumination module, car light and vehicle | |
| KR101731779B1 (en) | Lamp for vehicle and assembling method for the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130424 |