CN102418894A - Reflector module of a motor vehicle headlamp - Google Patents
Reflector module of a motor vehicle headlamp Download PDFInfo
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- CN102418894A CN102418894A CN2011102773621A CN201110277362A CN102418894A CN 102418894 A CN102418894 A CN 102418894A CN 2011102773621 A CN2011102773621 A CN 2011102773621A CN 201110277362 A CN201110277362 A CN 201110277362A CN 102418894 A CN102418894 A CN 102418894A
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- light sources
- semiconductor light
- bearing
- mirror module
- reflector
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- 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
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- 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
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
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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)
Abstract
The invention relates to a reflection module (10) of a motor vehicle headlamp. The reflection module (10) is provided with at least one semiconductor light source (16, 17) for emitting electromagnetic radiation, and at least one reflector (12) which is used to condense and reflect a portion of the emitted electromagnetic radiation to generate a desired radiation distribution on a road ahead of motor vehicle. The reflection module (10) is provided with at least another semiconductor light source (17) which has the main radiation direction. The main radiation direction pointes to a first region (26) of the reflector (12) but avoids an arranged second region (28).
Description
Technical field
The present invention relates to a kind of mirror module of car headlamp.This mirror module has at least one semiconductor light sources that is used for sending electromagnetic radiation; Also has at least one reflector; Be used for integrated bundle of electromagnetic radiation and reflection that at least a portion is sent; Thereby the light that on the track in motor vehicle the place ahead, produces expectation distributes, and wherein at least one semiconductor light sources has the main radiation direction of pointing to the reflector first area.
Background technology
From the known various different types of car headlight devices of prior art.Headlamp is except luminous, or the part of lighting device.Headlamp is arranged in the positive position of vehicle; It is except through letting other traffic participant see that automobile realizes the traffic safety; Especially also for example be used for form so that dipped headlights distributes, high beam distributes or fog lamp distributes; Or with the form of the light function of the ambient condition that is adapted to confirm and/or transport condition; Like dynamic follow-up steering lamp, static follow-up steering lamp, bad weather lamp, city lamp, township road lamp and highway lamp etc., illuminate the track of vehicle front, improve sight line so that be respectively the driver.Headlamp comprises at least one light source, and the form of this light source is incandescent lamp, gas-discharge lamp or semiconductor light sources.Semiconductor light sources also can be human eye and sends the infrared radiation that can't see, for example is used for night vision system.This headlamp for example carries out work according to principle of reflection as so-called mirror module, wherein reflects the light that sends from light source, is used on the track of vehicle front, producing the light of expecting through reflector and distributes.The free shape that this reflector constitutes ellipsoid or in ellipse, changes; It can also wear into facet for this reason.This headlamp also can be according to the projection principle work; Wherein after the integrated bundle of light that light source sends through main optical unit the form of reflector or so-called additional optical block learn (for example with); And for the light distribution that produces expectation projects on the track of vehicle front through the secondary optics unit, the form of this secondary optics unit for example is projecting lens or convex lens.
Headlamp comprises shell, and wherein this shell Transparent lamp shade (Abdeckscheibe) through glass or plastics in the light outlet opening seals.This lampshade can be designed as the clear cover that does not have the effective section bar of optics (for example prism) or at least partly have the effective section bar of optics (so-called astigmat).
At least one optical module (mirror module and/or projection module) is set in shell, is used for producing the light distribution of one or more expectations.The light of confirming is distributed in this and can produces through a unique optical module, but it also can distribute through the local light that stack is produced by a plurality of optical modules and produces.This point is preferred in the headlamp of having equipped semiconductor light sources.For example, night lamp can be produced by the some light distribution (Spotlichtverteilung) of basic light distribution (Grundlichtverteilung) and stack, and wherein for example basic light is distributed in the automobile front produces broadness with terminator smooth, level illumination.Point light is distributed in the sloping portion that has produced asymmetrical terminator on self the driving side, and in the middle of the track, has produced stronger illumination, therefore can satisfy jural requirement better.Through inserting other optical module, this optical module illuminates a photodistributed zone above terminator, and the dipped beam module that then produces like this can add in the distance light module that illuminates whole track.
Because the different local photodistributed stack that in lighting device, produces can have the structure that contains standard package so have the lighting device of semiconductor light sources, wherein each local light distributes and all can be produced by independent optical module.This point especially is disadvantageous in headlamp, distributes in order to produce the light that requires on the complete set of laws, must in headlamp or the positive position of automobile, many optical modules be set.In just having adorned the positive position of automobile of many other technical equipment originally, this point also needs many spaces.Especially in higher automobile grade; For the light of the ambient condition that is adapted to confirm and/or transport condition distributes by (like dynamic follow-up steering lamp, static follow-up steering lamp, bad weather lamp, city lamp, township road lamp and highway lamp), the light function of expectation also can be aggravated this situation.
Summary of the invention
Therefore, the objective of the invention is, in headlamp, reduce the quantity of the optical module (especially mirror module) that has been equipped with semiconductor light sources, and can produce different light distributions through a unique optical module at this.
Be to realize this purpose, suggestion, mirror module has at least one other semiconductor light sources, and it has main radiation direction, the second area that staggers and be provided with the first area that this main radiation direction is pointed to reflector.
Therefore, at least one other semiconductor light sources of this at least one first semiconductor light sources and this shines on the zones of different of reflector with its main radiation direction at least.The zones of different of this reflector can produce the different distributions of electromagnetic radiation on the track of vehicle front.The present invention is based on such theory; Promptly; First semiconductor light sources of at least one is arranged to this at least one other semiconductor light sources with this, and semiconductor light sources separately arrives on this zone of reflector, promptly with its main radiation direction at least; Through the electromagnetic radiation that reflection on reflector is sent by semiconductor light sources, can on the track of vehicle front, produce at least two different distributions of electromagnetic radiation.
Semiconductor light sources or light are sent out diode (LED) and can be sent and be the visible light of human eye.But it also can be an infrared ray, for example is used for the night vision system of automobile.Under the situation of visible light; The light that all produces qualification by each irradiation area of the reflecting surface of mirror module of the present invention distributes; For example this at least one first semiconductor light sources light that produces dipped beam distributes, and this at least one other semiconductor light sources produces distance light and distributes.At this, the light that the structure of reflector and shape can influence generation distributes.Hereinafter is described the details to this.
Therefore, absolute possiblely be that in unique one mirror module that is equipped with semiconductor light sources, for example jointly producing, dipped beam distributes and the distance light distribution.Photodistributed other combination in any also is possible certainly, and can easily in mirror module, realize.That is,, can jointly produce at least two light and distribute by in the mirror module of the present invention.This can obviously reduce the quantity of the mirror module in the headlamp.Therefore, can make whole headlamp compacter and light, and cost is more to one's profit during fabrication.Therefore, in headlamp, only need structure space seldom by mirror module of the present invention, thereby whole headlamp all can be constructed compactly equally, and therefore in the positive position of automobile, only need structure space seldom.In addition, a plurality of light distribute and unite in a unique mirror module, have also reduced the required light gasing surface of headlamp, and this design for the positive position of car headlamp or outside provides bigger free space.
At this especially advantageously; This at least one first semiconductor light sources is arranged on the first inner bearing-surface of mirror module; And another semiconductor light sources is arranged on the second inner bearing-surface of mirror module, and wherein an angle that is not equal to 180 ° is supportted on the extension plane of bearing-surface.First bearing-surface essentially horizontally extends at this, and parallel with travel direction.Second bearing-surface sees on travel direction towards rear-inclined with respect to first bearing-surface, so the assembly of the main radiation direction of this at least one other semiconductor light sources with reverse driving direction.The reflecting surface of this reflector can be since second bearing-surface at this, and and then at first also extend with the shape that arches upward through first bearing-surface through second bearing-surface and in follow-up extension process.
Through extending the mandatory diverse location on the bearing-surface that separate each other at least two, that be used for semiconductor light sources of plane, be arranged on semiconductor light sources above them and can stagger each other and be positioned in the reflector of mirror module with being provided with.Single-pass is crossed this point, and at least one other semiconductor light sources of this at least one first semiconductor light sources and this has just arrived at the zones of different of reflector at least with its main radiation direction.The angled each other layout of bearing-surface also can promote this effect.Purpose is, is arranged on the reflecting surface that is separated from each other fully basically that semiconductor light sources on the bearing-surface arrives at reflector.Certainly, should farthest avoid the useless region that possibly occur on the reflecting surface at this.Trickle overlapping of this tolerable.
What certainly also can consider is, the bearing-surface more than two is set in mirror module, and they have the extension plane of corresponding align and the semiconductor light sources of corresponding equipment, and they also need other zone of reflector, distribute so that produce other light.
At this, the semiconductor light sources of bearing-surface can be controlled in the running dividually, but therefore opening and closing light separately distributes, but also can change their luminous intensity, can dim.This is meant simple electric switch; Can cancel mechanical process in an advantageous manner, said mechanical process is necessary in gas-discharge lamp for example, in gas-discharge lamp, has the motion of gas-discharge lamp or reflector.
What can consider in addition is, by mirror module of the present invention around the secondary optics unit or round focusing on or the projection prism is expanded, so that on the track, produces the light distribution of expectation as projection module.Then, the shape of the layout of bearing-surface and reflector must adapt to by the optics situation in the projection module.
In a preferred embodiment; At least one other semiconductor light sources of this at least one first semiconductor light sources and this constitutes like this and is provided with; Be that semiconductor light sources is sent with identical opening angle on main radiation direction, and half opening angle of the electromagnetic radiation that is equivalent to send on main radiation direction by semiconductor light sources of the angle (in side view, observing) between first bearing-surface and second bearing-surface.Therefore, second bearing-surface is configured especially favourable with respect to the inclination of first bearing-surface, so this at least one first semiconductor light sources can cosily make full use of the first area of reflecting surface.The horizontal level basic in the vertical direction of this at least one other semiconductor light sources through its bearing-surface (because at least by scattering of the vertical element that occurs) irradiation; And the therefore basic second area that uses reflecting surface, it is positioned on the free end of reflecting surface.Reflector constitutes like this, promptly each regional area of reflecting surface all on the track, produce to limit but different light distribute.
Therefore; For example the reflector shape by corresponding formation has produced dipped beam-basic distribute (it has the terminator of basic horizontal) on first regional area of the light that shines reflecting surface; And second regional area of reflecting surface is to constitute like this; Be that light on the track distributes and can add in the distance light, the whole track of this distant light irradiation is until the horizon.Same also possible be, for example first regional area through reflecting surface produces complete distance light distribution on the track, and second regional area of reflecting surface is issued ultrared semiconductor light sources and shines, and for example is used for night vision system.
In pressing another advantageous embodiments of mirror module of the present invention; First bearing-surface be basically vertical and about vertical mid-plane towards lopsidedness; And second bearing-surface tilts towards opposite side with respect to its mirror image ground, thereby at least one the main radiation direction of other semiconductor light sources of this at least one first semiconductor light sources and this is pointed to the reflecting part section of the side of reflector about mid-plane.The shape of the corresponding coupling through reflector can produce light and distribute on the track, this light distributes and except common light distributes, also preferably illuminates the zone of automobile side.This for example can refer to the city lamp, and it illuminates the pavement in the part extraly.Static steering indicating light also can be realized.What equally also can consider is; One side of reflector produces dipped beam-basic distribution, and it has the terminator of basic horizontal, and opposite side produces the sloping portion of terminator in driver-side; And in the middle of the track, produce stronger illumination, therefore two local lights distribute and are superimposed as final dipped beam.At this, can advantageously omit other common some light.
In pressing mirror module of the present invention; Can consider many other combinations of light function in principle; For example narrow basic light and wide basic light make up, and said wide basic light can activate under different travel situations, for example is used for city lamp, township road lamp and highway lamp etc.For corresponding light distributes, only need correspondingly adjust luminous intensity.These combinations can be saved the space, but are also keeping even improving under the optical property situation and can save energy through suitable light distribution.
The particularly important is for the present invention, reflector has free shape.Each light that is produced by lighting apparatus distributes and all must satisfy legal requiremnt, and for example the ECE-of Economic Commission for Europe stipulates, because the granting that they are permitted for national separately operation is very important.Therefore, ECE-rules R1 has defined the standard about car headlamp.Certainly, the photodistributed structure part that is these rules.Reflector by mirror module of the present invention must constitute like this, and the light that promptly in mirror module, produces respectively distributes and is equivalent to the ECE-rules.The layout of bearing-surface in mirror module is to produce corresponding photodistributed basis.The shape of reflector, especially reflecting surface must form required light on this basis and distribute.
The free shape of reflector or reflecting surface provides very big gap and free leeway when the structure reflecting surface.In order to reach the free shape of reflecting surface; But can be starting point for example with the reflector shape (for example parabola, hyperbola, ellipse etc.) of simple defining on the mathematics; And come to change like this by computer simulation or calculating subsequently, promptly reflector accurately produces the light distribution of expectation.Certainly also can adjust the position and the quantity of semiconductor light sources or its bearing-surface at this.Be necessary for semiconductor light sources at this and together consider the for example size of carrier element and circuit board.According to the reflecting surface that calculates via computer optimization, can produce the model of reflector then.
In addition advantageously, exist a plurality of first and/or a plurality of other semiconductor light sources, they respectively winding become the optical unit array.The optical unit array is the functionalities of a plurality of semiconductor light sources, and they are co-located on carrier element or the circuit board usually.Usually control all semiconductor light sources of optical unit array together, single semiconductor light sources also can be controlled when needed individually.By in the mirror module of the present invention, the optical unit array with at least one semiconductor light sources is set all on each bearing-surface preferably.
For single being integrated in be basically the function capable of being combined in the mirror module; Basically separate by this reflecting surface that at least one at least one other semiconductor light sources of first semiconductor light sources and this illuminates, wherein do not disturb photodistributed trickle overlapping also be possible.This point can realize by two types of different schemes: on the one hand can be at this at least one aperture be set between at least one at least one the other semiconductor light sources of first semiconductor light sources and this, the electromagnetic radiation that it sends each semiconductor light sources is delimitated each other.On the other hand, the additional optical block learn is set in the light path of the electromagnetic radiation of being sent by at least one semiconductor light sources, it is made up of material transparent visually.This additional optical block learn can for example reflex to light on optical input surface and the light gasing surface.Therefore the integrated bundle of light.Alternative or additional is, after electromagnetic radiation was coupled in the additional optical block learn, the additional optical block learn also can be through total reflection reflecting electromagnetic radiation on the interface of additional optical block learn and surrounding environment, and therefore integrated bundle.This means that the electromagnetic radiation of being sent by semiconductor light sources is integrated bundle in the additional optical block learn like this, i.e. at least one the radiation of other semiconductor light sources of this at least one first semiconductor light sources and this basically can be not overlapping on reflecting surface.
Description of drawings
Other advantage will draw from following specification and accompanying drawing.Be appreciated that the combination that the above-mentioned and following characteristic that will set forth is not limited only to respectively provide, but without departing from the present invention, can also be with other combination or use independently.Be described in the drawings embodiments of the invention, and set forth in detail in the specification below.Respectively in schematic form
Fig. 1 in longitudinal sectional drawing, illustrated in first embodiment by mirror module of the present invention;
Fig. 2 in longitudinal sectional drawing, illustrated in a second embodiment by mirror module of the present invention;
Fig. 3 in longitudinal sectional drawing, illustrated in the 3rd embodiment by mirror module of the present invention;
Fig. 4 in longitudinal sectional drawing, illustrated in the 4th embodiment by mirror module of the present invention.
The specific embodiment
Fig. 1 in longitudinal sectional drawing, in first embodiment, illustrated car headlamp by optical module of the present invention, it constitutes mirror module 10.Mirror module 10 exemplarily comprises two light sources 16 and 17 that are used for sending electromagnetic radiation, the for example visible light of human eye in Fig. 1.This light source constitutes semiconductor light sources, preferably constitutes light emitting diode 16 and 17.The light that is sent by light emitting diode 16 and 17 is by the integrated bundle of optical unit, and this optical unit constitutes reflector 12 in an illustrated embodiment.12 pairs of light of this reflector reflect, and distribute so that on the track of vehicle front, produce the light of expectation.Reflector 12 constitutes free shape.In Fig. 1, ending place is provided with base 14 below reflector 12, and it for example can constitute cooling body.Base 14 has first bearing-surface 20 on the surface of its sensing reflector 12, extend on plane at it carrier element 18 with light emitting diode 16 is being set.In addition, base 14 also has second bearing-surface 22, extends on the plane at it another carrier element 18 with light emitting diode 17 is being set.Certainly, also more light emitting diode 16 or 17 can be set on bearing-surface 20 and 22.Bearing-surface 20 and bearing-surface 22 are arranged on the base 14 to be not equal to 180 angle each other, and wherein bearing-surface 22 is in this essentially horizontally alignment on mirror module 10.
Under the situation that a plurality of light emitting diodes 16 or 17 are arranged on bearing- surface 20 or 22, each light emitting diode winding respectively becomes the optical unit array.The optical unit array is the functionalities of a plurality of light emitting diodes, and they are arranged on carrier element or the circuit board usually targetedly.Be generally and turn round, control all light emitting diodes of optical unit array jointly, also can control single light emitting diode individually when needed certainly.At this, can also change light intensity, that is, can dim.In mirror module 10, the optical unit array is set all preferably on each bearing- surface 20 or 22 preferably.A plurality of optical unit arrays spaced apart from each other can certainly be set on each bearing- surface 20,22.
The light beam that on main radiation direction, is sent by light emitting diode 16 and 17 has opening angle α.This angle is preferably the same big with 17 for two light emitting diodes 16.Through the different layouts on light emitting diode 16 and 17 the bearing- surfaces 20 and 22 two mutual bendings, light emitting diode 16 shines the regional area 26 of the reflecting surface 24 of reflectors 12 at this, and light emitting diode 17 shines the regional area 28 of reflectings surface 24.Angle between bearing-surface 20 and the horizontal plane (being parallel to bearing-surface 22) preferably is equivalent to half opening angle α of the main radiation direction of light emitting diode 16 and 17 at this.What can consider in another embodiment is, bearing-surface 20 is towards the angle of horizontal plane also half opening angle α of deviation.As shown in Figure 1, two regional areas 26 and 28 are direct adjacency.At this, the ground transition that interweaves sustainably of these two reflection regional areas 26,28 but also has edge or gap (Sprung) each other.
Therefore for example possible is; The light radiation of light emitting diode 16 can produce deepening through the regional area 26 of reflecting surface 24 on the track of vehicle front light distributes, and the light radiation of light emitting diode 17 can produce the distance light distribution through the regional area 28 of reflecting surface 24 on the track of vehicle front.This distance light is distributed in this and for example only produces on regional area 28 through the light radiation of light emitting diode 17, but it also can add in the distance light distribution through two photodistributed overlapping by regional area 26 and 28 generations.
For example definitely also possible is; The regional area 26 of reflecting surface 24 produces dipped beams distribute basically (Ablendlichtgrundverteilung); It has the terminator of basic horizontal, and the regional area 28 of reflecting surface 24 has produced the sloping portion of terminator at driver side, and in the middle of the track, has produced stronger illumination; Therefore distribute through two photodistributed overlapping dipped beams that produce, the same as what require legally.In mirror module 10, also can consider, different light functions can have many other can be integrated combination.For example, overlapping through with wide light basically (Grundlicht) makes up with narrow basic light, and said wide basic light can activate under different travel situations, for example is used for city lamp, township road lamp and highway lamp etc.Also can produce dynamic follow-up steering lamp by the present invention.At this, according to different automobile parameters (for example car speed, steering angle etc.), activate in the light emitting diode 16,17 selectively, or produce static steering indicating light to the right or left.Distribute for different light, also can additionally correspondingly adjust luminous intensity, it is meant the efficiency of supply of light emitting diode 16,17.
For the light that on the track of vehicle front, produces corresponding expectation distributes, necessary is that reflecting surface 24 has the especially shape of coupling in corresponding topical zone 26.In order to obtain the intended shape of reflecting surface 24; But can be starting point for example with the reflector shape (for example parabola, hyperbola, ellipse) of simple defining on the mathematics; And come to calculate like this by computer simulation subsequently, promptly reflector 12 accurately produces the light distribution of expectation.The reflector 12 that constitutes like this is also referred to as the free shape reflector.
Fig. 2 is at second embodiment that mirror module 10 has been shown in the longitudinal sectional drawing of the optical axial of optical module 10.Different with first embodiment of the optical module 10 of Fig. 1 is that light emitting diode 16 and 17 has been equipped with additional optical block learn 30 herein. Light emitting diode 16 and 17 is hidden by additional optical block learn 30, and therefore in Fig. 2, can't see.Additional optical block learn 30 is arranged in the light path of each light emitting diode 16 or 17, and is processed by material transparent visually.Additional optical block learn 30 reflects light on optical input surface and light gasing surface.Therefore make the integrated bundle of light.Replace or additional additional optical block learn 30 be that a kind of additional optical block learn 30 that makes the integrated bundle of light through total reflection can be set.At this, after being coupled to additional optical block learn 30 to the radiation of light emitting diode 16 and 17, this radiation with the interface of surrounding environment on reflect and therefore integrated bundle.The effect of integrated bundle is, the radiation of from light emitting diode 16 or 17, sending is limited like this on their main radiation direction, and promptly the radiation on light emitting diode 16 and 17 the main radiation direction basically can be not overlapping on reflecting surface 24 at least.But, do not disturb photodistributed trickle overlapping also be possible.Can see also from Fig. 2 that in addition give light emitting diode 16 or 17 through being equipped with additional optical block learn 30, the light emitting diode 16 and 17 that is subordinated to two bearing- surfaces 20 and 22 can be realized more at interval.Additional optical block learn 30 will be by the integrated like this bundle of the radiation that light emitting diode 16 and 17 sends; Although promptly light emitting diode 16 and 17 or the mutual interval of additional optical block learn 30 more closely (compared to Figure 1) can produce on reflecting surface 24 and having basically no borderline region 32 usefulness, little.
Fig. 3 is at the 3rd embodiment that mirror module 10 has been shown in the longitudinal sectional drawing of the optical axial of optical module 10.Different with first embodiment of the optical module 10 of Fig. 1 is, in local portion section, is being equipped with dipped beam element 36 at least between light emitting diode 16 and 17, and it is basic each other face-to-face.The effect of this dipped beam element 36 is to limit the opening angle of the main radiation direction of light emitting diode 16 or 17.Therefore can realize that light emitting diode 16 and each light radiation of 17 can be not overlapping, so each light emitting diode 16 and 17 all can be distributed to the regional area of predesignating 26 or 28 on the reflecting surface 24.Therefore, there is not diffused light can arrive in the zone 26,28 of not assigning.
Fig. 4 has illustrated the 4th embodiment of optical module 10 in cross section.In this embodiment, bearing-surface 20 is vertical and laterally inclined about straight mid-plane 34 courts of heavily fortified point basically, and bearing-surface 22 tilts towards opposite side with respect to its mirror image ground. Light emitting diode 16 and 17 main radiation direction are separately pointed to the regional area 26 and 28 of the side of reflectors 12 or reflecting surface 24 about mid-plane 34.Because light emitting diode 16 and 17 also has been equipped with additional optical block learn 30 here,, and therefore can't see so light emitting diode 16 and 17 is also hidden by additional optical block learn 30 in Fig. 3. Light emitting diode 16 and 17 main radiation direction are delimitated through additional optical block learn 30 like this, and promptly regional area 26 and 28 is not overlapping on reflecting surface 24.Therefore, also form a useless basically borderline region 32 herein.The shape of the corresponding coupling through reflector 12 or reflecting surface 24 can produce various light arbitrarily in principle and distribute on the track.Especially preferably can illuminate the lateral side regions on the track of vehicle front.This point for example can refer to the city lamp, and the pavement in its local irradiation extraly.Also can realize static steering indicating light.Certainly, possibly also can realize that also common dipped beam distributes or distance light distributes by the 4th embodiment through a plurality of photodistributed overlapping.Also possible is, can on the track, produce complete distance light through regional area 26 and distribute, and regional area 28 is set at the ultrared semiconductor light sources irradiation of sending on the bearing-surface 22, so that handle for example night vision system.
Claims (11)
1. the mirror module of a car headlamp (10); This mirror module (10) has at least one semiconductor light sources that is used for sending electromagnetic radiation (16,17); Also has at least one reflector (12); Be used for integrated bundle of electromagnetic radiation and reflection that at least a portion is sent; Thereby the light that on the track in motor vehicle the place ahead, produces expectation distributes, and wherein this at least one semiconductor light sources (16) has the main radiation direction of sensing reflector (12) first area (26), it is characterized in that; Mirror module (10) has at least one other semiconductor light sources (17), this at least one other semiconductor light sources (17) have a sensing reflector (12) with first area (26) the stagger main radiation direction of the second area (28) that is provided with.
2. mirror module according to claim 1 (10); It is characterized in that; Said at least one first semiconductor light sources (16) is arranged on inner first bearing-surface (20) of mirror module (10); And said other semiconductor light sources (17) is arranged on inner second bearing-surface (22) of mirror module (10), and wherein the extension plane of these bearing-surfaces (20,22) is supportted into one and is not equal to 180.Angle.
3. mirror module according to claim 2 (10); It is characterized in that; First bearing-surface (20) in fact flatly extends and is parallel with travel direction; And second bearing-surface (22) is seen on travel direction towards rear-inclined with respect to first bearing-surface, the component that therefore said at least one the main radiation direction of other semiconductor light sources (17) has the reverse driving direction.
4. according to claim 2 or 3 described mirror module (10); It is characterized in that; First bearing-surface (20) come down to vertical and about vertical mid-plane (34) towards lopsidedness; Second bearing-surface (22) tilts towards opposite side with respect to said first bearing-surface (20) mirror image ground, thereby said at least one first semiconductor light sources (16) and said at least one the main radiation direction of other semiconductor light sources (17) are pointed to the reflecting part section (26,28) of the side of reflector (12) about mid-plane (34).
5. according to each described mirror module (10) of aforesaid right requirement; It is characterized in that; Said at least one first semiconductor light sources (16) is sent with identical opening angle (α) on main radiation direction with said at least one other semiconductor light sources (17), and the angle between first bearing-surface (20) and second bearing-surface (22) is observed half opening angle (α) of the electromagnetic radiation that is equivalent to be sent on main radiation direction by semiconductor light sources (16,17) in side view.
6. according to each described mirror module (10) of aforesaid right requirement, it is characterized in that said reflector (12) has free shape.
7. according to each described mirror module (10) of aforesaid right requirement, it is characterized in that, exist a plurality of first semiconductor light sources (16) and/or a plurality of other semiconductor light sources (17), they respectively winding become at least one optical unit array.
8. according to each described mirror module (10) of aforesaid right requirement, it is characterized in that, between said at least one first semiconductor light sources (16) and said at least one other semiconductor light sources (17), at least one aperture (36) is set.
9. according to each described mirror module (10) of aforesaid right requirement, it is characterized in that, in the light path of the electromagnetic radiation of sending, additional optical block learn (30) is set by at least one semiconductor light sources (16,17).
10. according to each described mirror module (10) of aforesaid right requirement, it is characterized in that the electromagnetic radiation of being sent by at least one semiconductor light sources (16,17) is the human eye visible light, or infra-red radiation.
11. each the described mirror module (10) according to the aforesaid right requirement is characterized in that, said at least one first semiconductor light sources (16) and said other semiconductor light sources (17) constitute light emitting diode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010045847.3 | 2010-09-17 | ||
| DE102010045847A DE102010045847A1 (en) | 2010-09-17 | 2010-09-17 | Refelxionsmodul a motor vehicle headlamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102418894A true CN102418894A (en) | 2012-04-18 |
| CN102418894B CN102418894B (en) | 2015-11-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110277362.1A Expired - Fee Related CN102418894B (en) | 2010-09-17 | 2011-09-19 | The reflecting module of car headlamp |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2431657B1 (en) |
| CN (1) | CN102418894B (en) |
| DE (1) | DE102010045847A1 (en) |
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| CN112747287A (en) * | 2012-05-09 | 2021-05-04 | Zkw集团有限责任公司 | Lighting device producing an arcuate light distribution |
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| CN107960117A (en) * | 2015-05-22 | 2018-04-24 | 三菱电机株式会社 | Headlamp module and front lamp device |
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| CN106016180A (en) * | 2016-06-30 | 2016-10-12 | 安徽卡澜特车灯科技有限公司 | High-efficient LED single-chip optical module used for headlamp |
| CN108916797A (en) * | 2017-03-31 | 2018-11-30 | 诚益光电科技股份有限公司 | Car lamp device and its shield structure |
| CN109000200A (en) * | 2017-06-07 | 2018-12-14 | 株式会社小糸制作所 | Lamps apparatus for vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2431657A3 (en) | 2014-01-15 |
| EP2431657B1 (en) | 2019-05-08 |
| EP2431657A2 (en) | 2012-03-21 |
| DE102010045847A1 (en) | 2012-03-22 |
| CN102418894B (en) | 2015-11-04 |
| DE102010045847A8 (en) | 2012-05-24 |
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