CN102418894B - The reflecting module of car headlamp - Google Patents
The reflecting module of car headlamp Download PDFInfo
- Publication number
- CN102418894B CN102418894B CN201110277362.1A CN201110277362A CN102418894B CN 102418894 B CN102418894 B CN 102418894B CN 201110277362 A CN201110277362 A CN 201110277362A CN 102418894 B CN102418894 B CN 102418894B
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- Prior art keywords
- light source
- semiconductor light
- bearing
- reflecting module
- reflector
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Classifications
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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 present invention relates to a kind of reflecting module (10) of car headlamp.This reflecting module (10) has at least one semiconductor light source being used for sending electromagnetic radiation (16,17), also there is at least one reflector (12), be used for the integrated bundle of electromagnetic radiation that makes to send at least partially and reflection, thus on the track of motor vehicle front, produce the Light distribation of expectation.This at least one semiconductor light source (16) has the main radiation direction of sensing reflector (12) first area (26).Reflecting module (10) has at least one other semiconductor light source (17) at this, it has main radiation direction, and this main radiation direction points to staggering the second area (28) arranged with first area (26) of reflector (12).
Description
Technical field
The present invention relates to a kind of reflecting module of car headlamp.This reflecting module has the semiconductor light source that at least one is used for sending electromagnetic radiation, also there is at least one reflector, be used for the integrated bundle of electromagnetic radiation that makes to send at least partially and reflection, thus on the track of motor vehicle front, produce the Light distribation of expectation, wherein at least one semiconductor light source has the main radiation direction pointing to reflector first area.
Background technology
From the known various different types of car headlight device of prior art.Headlamp is except luminescence, or a part for lighting device.Headlamp is arranged in the position, front of vehicle, it is except by allowing other traffic participant see, automobile realizes except traffic safety, especially also for the form such as distributed with dipped headlights, high beam distributes or fog lamp distributes, or with the form of the light function being adapted to ambient condition and/or the transport condition determined, as 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, to be respectively driver improving sight line.Headlamp comprises at least one light source, and the form of this light source is incandescent lamp, gas-discharge lamp or semiconductor light source.Semiconductor light source also can be human eye and sends the infrared radiation can't see, such as, for night vision system.This headlamp such as carries out work according to principle of reflection as so-called reflecting module, wherein reflects the light sent from light source, for being produced the Light distribation expected on the track of vehicle front by reflector.The free shape that this reflector is configured to ellipsoid or changes in ellipse; It can also wear into facet for this reason.This headlamp also can according to the work of projection principle, wherein from after the integrated bundle of light that light source sends through main optical unit (such as with the form of reflector or so-called Additional optical unit), and projecting on the track of vehicle front for producing the Light distribation expected through secondary optics unit, the form of this secondary optics unit is such as projecting lens or convex lens.
Headlamp comprises shell, and wherein this shell is closed by the Transparent lamp shade (Abdeckscheibe) of glass or plastics in light output opening.This lampshade can be designed as the clear cover not having the effective section bar of optics (such as prism) or have the effective section bar of optics (so-called astigmat) at least partly.
At least one optical module (reflecting module and/or projection module) is set in shell, is used for producing the Light distribation of one or more expectation.The Light distribation determined produces by a unique optical module at this, but it also produces by superposing the local light distribution produced by multiple optical module.This point is preferred in the headlamp being equipped with semiconductor light source.Such as, night lamp can be produced by the some Light distribation (Spotlichtverteilung) of basic Light distribation (Grundlichtverteilung) and superposition, and wherein such as basic Light distribation produces broad illumination with terminator that is smooth, level before automobile.Point Light distribation creates the sloping portion of asymmetrical terminator on the driving side of self, and creates stronger illumination in the middle of track, therefore can meet jural requirement better.By accessing other optical module, this optical module illuminates a photodistributed region above terminator, then the dipped beam module produced like this can add to and illuminate in the distance light module in whole track.
Due to the photodistributed superposition in different local produced in lighting device, so the lighting device with semiconductor light source can have the structure containing standard package, wherein each local light distribution can be produced by independent optical module.This point is especially disadvantageous in headlamp, in order to produce the Light distribation that complete set of laws requires, must arrange many optical modules in headlamp or position, automobile front.In the position, automobile front natively having filled other technical equipment many, this point also needs many spaces.Especially in higher vehicular grade, for being adapted to the Light distribation (as dynamic follow-up steering lamp, static follow-up steering lamp, bad weather lamp, city lamp, township road lamp and highway lamp) of ambient condition and/or the transport condition determined, the light function expected also can aggravate this situation.
Summary of the invention
Therefore, the object of the invention is, in headlamp, reduce the quantity being equipped with the optical module (especially reflecting module) of semiconductor light source, and produce different Light distribation at this by a unique optical module.
For realizing this purpose, suggestion, reflecting module has at least one other semiconductor light source, and it has main radiation direction, and this main radiation direction points to staggering the second area arranged with first area of reflector.
Therefore, this at least one the first semiconductor light source and this at least one other semiconductor light source are at least irradiated in the zones of different of reflector with its main radiation direction.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, namely, by this, at least one the first semiconductor light source and this at least one other semiconductor light source are arranged to, respective semiconductor light source at least arrives on this region of reflector with its main radiation direction, namely, by reflecting the electromagnetic radiation sent by semiconductor light source on reflector, the distribution that at least two of electromagnetic radiation are different can be produced on the track of vehicle front.
Semiconductor light source or light are sent out diode (LED) and can be sent as the visible light of human eye.But it also can be infrared ray, such as, for the night vision system of automobile.When visible ray, the Light distribation of restriction is produced by each irradiation area of the reflecting surface of reflecting module of the present invention, such as this at least one the first semiconductor light source produces the Light distribation of dipped beam, and this at least one other semiconductor light source produces distance light distribution.At this, the structure of reflector and shape can affect the Light distribation of generation.Details to this are hereafter described.
Therefore, definitely possible, be equipped with in the reflecting module of semiconductor light source at unique one and jointly produce such as dipped beam distribution and distance light distribution.Other any combination photodistributed is also possible certainly, and can easily realize in reflecting module.That is, by reflecting module of the present invention, at least two Light distribation can jointly be produced.This obviously can reduce the quantity of the reflecting module in headlamp.Therefore, whole headlamp can be made compacter and light, and cost is more to one's profit during fabrication.Therefore, in headlamp, only need little structure space by reflecting module of the present invention, thus whole headlamp can construct all equally compact, and therefore in position, automobile front, only need little structure space.In addition, multiple Light distribation is combined in a unique reflecting module, also reduces the required light gasing surface of headlamp, and this is that the design at the position, front of car headlamp or outside provides larger free space.
At this especially advantageously, this at least one the first semiconductor light source is arranged on the first bearing-surface of reflecting module inside, and another semiconductor light source is arranged on the second bearing-surface of reflecting module inside, wherein the extension plane of bearing-surface supports into the angle that is not equal to 180 °.First bearing-surface essentially horizontally extends at this, and parallel with travel direction.Second bearing-surface relative to the first bearing-surface in travel direction towards rear-inclined, therefore the main radiation direction of this at least one other semiconductor light source has the assembly in reverse driving direction.The reflecting surface of this reflector can from the second bearing-surface at this, and and then first also extended with the shape arched upward by the first bearing-surface in follow-up extension process by the second bearing-surface.
By extending plane at least two spaced, on the bearing-surface of semiconductor light source mandatory diverse locations, the semiconductor light source be arranged on above them can offset one from another and be positioned in the reflector of reflecting module with arranging.Single pass-through this point, this at least one the first semiconductor light source and this at least one other semiconductor light source have at least just arrived at the zones of different of reflector with its main radiation direction.Bearing-surface each other angled layout also can promote this effect.Object is, the semiconductor light source arranged on the bearing surface arrives at the reflecting surface be substantially separated from each other completely of reflector.Certainly, farthest should avoid at this useless region that reflecting surface may occur.In the overlap that this tolerable is trickle.
Certainly it is also contemplated that, in reflecting module, arrange the bearing-surface more than two, they have the extension plane of corresponding align and the semiconductor light source of corresponding equipment, and they also need other region of reflector, to produce other Light distribation.
At this, the semiconductor light source of bearing-surface can control in the running dividually, therefore can open and close respective Light distribation, but also can change their luminous intensity, i.e. adjustable dark.This refers to simple electric switch; Can cancel mechanical process in an advantageous manner, described mechanical process is necessary in such as gas-discharge lamp, has the motion of gas-discharge lamp or reflector in gas-discharge lamp.
In addition it is contemplated that acetyl expand, to produce the Light distribation of expectation as projection module on track around secondary optics unit or round focusing or projection prism by reflecting module of the present invention.Then, the layout of bearing-surface and the shape of reflector must adapt to by the optical case in projection module.
In a preferred embodiment, this at least one the first semiconductor light source and this at least one other semiconductor light source form like this and arrange, namely semiconductor light source sends with identical opening angle in main radiation direction, and the angle (observing in side view) between the first bearing-surface and the second bearing-surface is equivalent to half opening angle of the electromagnetic radiation sent in main radiation direction by semiconductor light source.Therefore, the second bearing-surface is configured especially favourable relative to the inclination of the first bearing-surface, and therefore this at least one the first semiconductor light source cosily can make full use of the first area of reflecting surface.This at least one other semiconductor light source is irradiated by the basic in the vertical direction of horizontal level (due at least by the scattering of the vertical element occurred) of its bearing-surface, and therefore substantially using the second area of reflecting surface, it is positioned on the free end of reflecting surface.Reflector is formed like this, namely each regional area of reflecting surface produce on track limit but different Light distribation.
Therefore, such as on the first regional area of light irradiating reflecting surface, create dipped beam-basic distribution (it has the terminator of basic horizontal) by the reflector shape of corresponding formation, and the second regional area of reflecting surface forms like this, namely the Light distribation on track can add in distance light, and the whole track of this distant light irradiation is until horizon.Equally also possibly, such as on track, produce complete distance light distribution by the first regional area of reflecting surface, and the second regional area of reflecting surface is issued the irradiation of ultrared semiconductor light source, such as, for night vision system.
In another favourable embodiment of pressing reflecting module of the present invention, first bearing-surface is vertical and about vertical mid-plane towards lopsidedness substantially, and the second bearing-surface tilts towards opposite side relative to its mirror image, thus the main radiation direction of this at least one the first semiconductor light source and this at least one other semiconductor light source points to the reflecting part section of the side of reflector about mid-plane.By the shape of the corresponding coupling of reflector, can produce Light distribation on track, this Light distribation also preferably illuminates the region of automobile side except common Light distribation.This such as can refer to city lamp, and it illuminates pavement in local extraly.Static steering indicating light also can realize.Same it is also contemplated that, the side of reflector produces dipped beam-substantially distribute, and it has the terminator of basic horizontal, and opposite side produces the sloping portion of terminator in driver-side, and stronger illumination is produced in the middle of track, therefore two local light distributions are superimposed as final dipped beam.At this, the some light that other is common advantageously can be omitted.
Pressing in reflecting module of the present invention, other combinations many of light function can be considered in principle, such as narrow basic light and wide basic light combine, and described wide basic light can activate under different travel situations, such as, for city lamp, township road lamp and highway lamp etc.In order to corresponding Light distribation, only correspondingly luminous intensity need be adjusted.These combinations can save space, but also under maintenance even improves optical property situation, can save energy by suitable Light distribation.
The particularly important is for the present invention, reflector has free shape.Each Light distribation produced by lighting apparatus must meet legal requiremnt, and the ECE-regulation of such as Economic Commission for Europe, because the granting that they are permitted for operation national is separately very important.Therefore, ECE-regulation R1 defines the standard about car headlamp.Certainly, photodistributed structure is a part for this regulation.Must form like this by the reflector of reflecting module of the present invention, the Light distribation namely produced respectively in reflecting module is equivalent to ECE-regulation.The layout of bearing-surface in reflecting module produces corresponding photodistributed basis.The shape of reflector, especially reflecting surface must form required Light distribation on this basis.
The free shape of reflector or reflecting surface provides very large gap and free leeway when constructing reflecting surface.In order to reach the free shape of reflecting surface, such as can with the reflector shape that mathematically can simply define (such as parabola, hyperbola, ellipse etc.) for starting point, and computer simulation subsequently or calculating change like this, namely reflector accurately produces the Light distribation of expectation.Certainly position and the quantity of adjustable semiconductor light source or its bearing-surface is gone back at this.The size that semiconductor light source together considers such as carrier element and circuit board is necessary at this.Then according to the reflecting surface calculated via computer optimization, the model of reflector can be produced.
In addition advantageously, there is multiple first and/or multiple other semiconductor light source, they respectively group be connected into optical unit array.Optical unit array is the function group of multiple semiconductor light source, and they are co-located on carrier element or circuit board usually.All semiconductor light sources of usual control both optical cell array together, single semiconductor light source also can control when needed individually.By in reflecting module of the present invention, the optical unit array with at least one semiconductor light source is preferably set on each bearing-surface.
To be integrated in reflecting module function capable of being combined for single it is essential that, substantially to separate by this reflecting surface that at least one the first semiconductor light source and this at least one other semiconductor light source illuminate, wherein do not disturb photodistributed trickle overlap to be also possible.This point can realize by the scheme that two classes are different: on the one hand can arrange at least one aperture at this between at least one the first semiconductor light source and this at least one other semiconductor light source, the electromagnetic radiation that each semiconductor light source sends is delimitated by mutually.On the other hand, in the light path of the electromagnetic radiation sent by least one semiconductor light source, arrange Additional optical unit, it is made up of visually transparent material.This Additional optical unit can such as light reflection on optical input surface and light gasing surface.Therefore integrated for light bundle.Alternatively or additionally, after electromagnetic radiation is coupled in Additional optical unit, Additional optical unit is also by total reflection reflecting electromagnetic radiation on the interface of Additional optical unit and surrounding environment, and therefore integrated bundle.This means, the electromagnetic radiation sent by semiconductor light source is integrated bundle in Additional optical unit like this, and namely the radiation of this at least one the first semiconductor light source and this at least one other semiconductor light source on the reflecting surface substantially can not be overlapping.
Accompanying drawing explanation
Other advantage draws from following description and accompanying drawing.Be appreciated that the above-mentioned and following feature that will set forth is not limited only to the combination respectively provided, but without departing from the present invention, with other combination or can also use independently.Be described in the drawings embodiments of the invention, and be described in detail in the following description.Respectively in schematic form
Fig. 1 longitudinal profile there is shown in a first embodiment by reflecting module of the present invention;
Fig. 2 longitudinal profile there is shown in a second embodiment by reflecting module of the present invention;
Fig. 3 longitudinal profile there is shown in the third embodiment by reflecting module of the present invention;
Fig. 4 longitudinal profile there is shown in the fourth embodiment by reflecting module of the present invention.
Detailed description of the invention
Fig. 1 show in a first embodiment in longitudinal sectional drawing car headlamp by optical module of the present invention, it is configured to reflecting module 10.Reflecting module 10 exemplarily comprises the light source 16 and 17 that two are used for sending electromagnetic radiation in FIG, the visible light of such as human eye.This light source is configured to semiconductor light source, is preferably configured to light emitting diode 16 and 17.The light sent by light emitting diode 16 and 17 is by the integrated bundle of optical unit, and this optical unit is configured to reflector 12 in an illustrated embodiment.This reflector 12 reflects light, to produce the Light distribation of expectation on the track of vehicle front.Reflector 12 is configured to free shape.In FIG, arrange base 14 in below ending place of reflector 12, it such as can be configured to cooling body.Base 14 points on the surface of reflector 12 at it has the first bearing-surface 20, extends in plane arrange the carrier element 18 with light emitting diode 16 at it.In addition, base 14 also has the second bearing-surface 22, extends in plane arrange another carrier element 18 with light emitting diode 17 at it.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 base 14 with the angle being not equal to 180 each other, and wherein bearing-surface 22 essentially horizontally aligns at this in reflecting module 10.
When multiple light emitting diode 16 or 17 is arranged on bearing-surface 20 or 22, each light emitting diode respectively group is connected into optical unit array.Optical unit array is the function group of multiple light emitting diode, and they are arranged on carrier element or circuit board usually targetedly.Be generally and operate, all light emitting diodes of co-controlling optical unit array, certainly also can control single light emitting diode individually when needed.At this, the intensity of light can also be changed, that is, adjustable dark.In reflecting module 10, preferably on each bearing-surface 20 or 22, preferably optical unit array is set.Multiple optical unit array spaced apart from each other can certainly be set on each bearing-surface 20,22.
The light beam sent in main radiation direction by light emitting diode 16 and 17 has opening angle α.This angle is preferably the same large with 17 for two light emitting diodes 16.At this by the different layouts of light emitting diode 16 and 17 on the bearing-surface 20 and 22 of two mutual bendings, light emitting diode 16 irradiates the regional area 26 of the reflecting surface 24 of reflector 12, and light emitting diode 17 irradiates the regional area 28 of reflecting surface 24.Angle between bearing-surface 20 and horizontal plane (being parallel to bearing-surface 22) is preferably equivalent to half opening angle α of the main radiation direction of light emitting diode 16 and 17 at this.In another embodiment it is contemplated that acetyl bearing-surface 20 is towards angle also deviation half opening angle α of horizontal plane.As shown in Figure 1, two regional areas 26 and 28 are directly adjacent.At this, these two reflection regional areas 26,28 interweaves sustainably transition, but also there is edge or gap (Sprung) mutually.
Reflecting module 10 carries out work in the following manner: extended by two differences for the extension plane of the bearing-surface 20 and 22 of light emitting diode 16 and 17, affiliated light emitting diode 16 and 17 creates mutually to stagger and arranges and bending location, and they form the regional areas 26 and 28 of two reflections of reflecting surface 24 on reflector 12 by main radiation direction.These two regional areas 26 and 28 of reflector 12 are formed like this at this, and the light radiation of namely being reflected by regional area 26 and 28 produces the different Light distribation defined respectively on the track of vehicle front.For this reason, these two light emitting diodes 16 and 17 are arranged on bearing-surface 20 or 22 like this, and the light radiation namely sent by light emitting diode 16 and 17 there will not be overlap substantially.In order to delimitate, aperture (not illustrating in FIG, with reference to Fig. 3) also can be set extraly between two bearing-surfaces 20 and 22.
Therefore such as likely, the light radiation of light emitting diode 16 produces dimmed Light distribation by the regional area 26 of reflecting surface 24 on the track of vehicle front, and the light radiation of light emitting diode 17 produces distance light distribution by the regional area 28 of reflecting surface 24 on the track of vehicle front.This distance light is distributed in this and is such as only produced on regional area 28 by the light radiation of light emitting diode 17, but its photodistributed overlap of also being produced by regional area 26 and 28 by two, adds to during distance light distributes.
Such as definitely also possibly, the regional area 26 of reflecting surface 24 produces dipped beam and substantially distributes (Ablendlichtgrundverteilung), it has the terminator of basic horizontal, the regional area 28 of reflecting surface 24 creates the sloping portion of terminator at driver side, and stronger illumination is created in the middle of track, therefore dipped beam distribution can be produced, as required legally by two photodistributed overlaps.Also can consider in reflecting module 10, different light functions can have the combination of other accessible site many.Such as, overlapping by with wide light substantially (Grundlicht), come to combine with narrow basic light, described wide basic light can activate under different travel situations, such as, for city lamp, township road lamp and highway lamp etc.Dynamic follow-up steering lamp also can be produced by the present invention.At this, according to different automobile parameters (such as car speed, steering angle etc.), activate in light emitting diode 16,17 selectively, or produce static steering indicating light to the right or back to left.For different Light distribation, also additionally correspondingly can adjust luminous intensity, it refers to the efficiency of supply of light emitting diode 16,17.
In order to produce the Light distribation of corresponding expectation on the track of vehicle front, it is necessary that reflecting surface 24 has the shape of especially mating in corresponding topical region 26.In order to obtain the intended shape of reflecting surface 24, such as can with the reflector shape that mathematically can simply define (such as parabola, hyperbola, ellipse) for starting point, and computer simulation subsequently calculates like this, namely reflector 12 accurately produces the Light distribation of expectation.The reflector 12 of such formation is also referred to as free shape reflector.
Fig. 2 there is shown the second embodiment of reflecting module 10 at the longitudinal profile of the optical axial along optical module 10.With the first embodiment of the optical module 10 of Fig. 1 unlike, light emitting diode 16 and 17 is equipped with Additional optical unit 30 herein.Light emitting diode 16 and 17 is hidden by Additional optical unit 30, and therefore can't see in fig. 2.Additional optical unit 30 is arranged in the light path of each light emitting diode 16 or 17, and is made up of visually transparent material.Additional optical unit 30 makes light reflect on optical input surface and light gasing surface.Therefore the integrated bundle of light is made.Replace or supplementary Additional optical unit 30, a kind of Additional optical unit 30 being made the integrated bundle of light by total reflection can be set.At this, after the radiation coupling of light emitting diode 16 and 17 to Additional optical unit 30, this radiation with the interface of surrounding environment on reflect, and therefore integrated bundle.The effect of integrated bundle is, the radiation sent from light emitting diode 16 or 17 is limited like this in their main radiation direction, i.e. radiation in the main radiation direction of at least light emitting diode 16 and 17 substantially can not be overlapping on reflecting surface 24.But, do not disturb photodistributed trickle overlap to be possible yet.In addition also can see from Fig. 2, by Additional optical unit 30 is equipped to light emitting diode 16 or 17, the light emitting diode 16 and 17 being subordinated to two bearing-surfaces 20 and 22 can realize interval more closely.The integrated like this bundle of radiation that Additional optical unit 30 will be sent by light emitting diode 16 and 17, although namely light emitting diode 16 and 17 or the mutual interval of Additional optical unit 30 more closely (compared to Figure 1), reflecting surface 24 can produce essentially no use, little borderline region 32.
Fig. 3 there is shown the 3rd embodiment of reflecting module 10 at the longitudinal profile of the optical axial along optical module 10.With the first embodiment of the optical module 10 of Fig. 1 unlike, between light emitting diode 16 and 17, at least in local portion section, be equipped with dipped beam element 36, it is basic mutually face-to-face.The effect of this dipped beam element 36 is, the opening angle of the main radiation direction of restriction light emitting diode 16 or 17.Therefore can realize, each light radiation of light emitting diode 16 and 17 can not be overlapping, and therefore each light emitting diode 16 and 17 can distribute to the prespecified regional area 26 or 28 on reflecting surface 24.Therefore, in the region 26,28 not having diffused light to arrive not assign.
Fig. 4 shows the 4th embodiment of optical module 10 in cross-section.In this embodiment, bearing-surface 20 is vertical and about the straight mid-plane 34 of heavily fortified point towards laterally inclined substantially, and bearing-surface 22 tilts towards opposite side relative to its mirror image.The respective main radiation direction of light emitting diode 16 and 17 points to the regional area 26 and 28 of the side of reflector 12 or reflecting surface 24 about mid-plane 34.Because light emitting diode 16 and 17 is also equipped with Additional optical unit 30 herein, so light emitting diode 16 and 17 is also hidden by Additional optical unit 30 in figure 3, and therefore can't see.The main radiation direction of light emitting diode 16 and 17 is delimitated like this by Additional optical unit 30, and namely regional area 26 and 28 is not overlapping on reflecting surface 24.Therefore, the borderline region 32 that also formation one is substantially useless herein.By the shape of the corresponding coupling of reflector 12 or reflecting surface 24, various arbitrary Light distribation can be produced in principle on track.Especially the lateral side regions on the track of vehicle front can preferably be illuminated.This point such as can refer to city lamp, and pavement in its local irradiation extraly.Also can realize static steering indicating light.Certainly, by the 4th embodiment also by multiple photodistributed overlap, common dipped beam distribution or distance light distribution can also may be realized.Also possibly, complete distance light distribution can be produced by regional area 26 on track, and the ultrared semiconductor light source that sends that regional area 28 is arranged on bearing-surface 22 irradiates, to handle such as night vision system.
Claims (9)
1. the reflecting module (10) of a car headlamp, this reflecting module (10) has the semiconductor light source (16 that at least one is used for sending electromagnetic radiation, 17), also there is at least one reflector (12), be used for the integrated bundle of electromagnetic radiation that makes to send at least partially and reflection, thus on the track of motor vehicle front, produce the Light distribation of expectation, wherein at least one first semiconductor light source (16) has the main radiation direction of sensing reflector (12) first area (26), wherein, reflecting module (10) has at least one other semiconductor light source (17), what this at least one other semiconductor light source (17) had a sensing reflector (12) to stagger the main radiation direction of the second area (28) arranged with first area (26), wherein, at least one first semiconductor light source (16) described is arranged on inner the first bearing-surface (20) of reflecting module (10), and described other semiconductor light source (17) is arranged on inner the second bearing-surface (22) of reflecting module (10), wherein the extension plane of these bearing-surfaces (20,22) supports into the angle that is not equal to 180 °,
It is characterized in that, first bearing-surface (20) in fact flatly extends and parallel with travel direction, and the second bearing-surface (22) relative to the first bearing-surface in travel direction towards rear-inclined, therefore at least one the main radiation direction of other semiconductor light source (17) described has the component in reverse driving direction;
The semiconductor light source (16,17) be separately positioned on the first bearing-surface (20) and the second bearing-surface (22) irradiates the regional area (26,28) be separated from each other of the reflecting surface (24) of described reflector (12) respectively.
2. reflecting module according to claim 1 (10), it is characterized in that, first bearing-surface (20) is in fact vertical and about vertical mid-plane (34) towards lopsidedness, second bearing-surface (22) tilts towards opposite side relative to described first bearing-surface (20) mirror image ground, thus at least one first semiconductor light source (16) described and at least one the main radiation direction of other semiconductor light source (17) described point to the reflecting part section (26 of the side of reflector (12) about mid-plane (34), 28).
3. reflecting module according to claim 1 and 2 (10), it is characterized in that, at least one the first semiconductor light source (16) described sends with identical opening angle (α) in main radiation direction with at least one other semiconductor light source (17) described, and the angle between the first bearing-surface (20) and the second bearing-surface (22) observes half opening angle (α) being equivalent to the electromagnetic radiation sent in main radiation direction by semiconductor light source (16,17) in side view.
4. reflecting module according to claim 1 and 2 (10), is characterized in that, described reflector (12) has free shape.
5. reflecting module according to claim 1 and 2 (10), it is characterized in that, there is multiple first semiconductor light source (16) and/or multiple other semiconductor light source (17), they respectively group be connected at least one optical unit array.
6. reflecting module according to claim 1 and 2 (10), it is characterized in that, at least one aperture (36) is set between at least one first semiconductor light source (16) described and at least one other semiconductor light source (17) described.
7. reflecting module according to claim 1 and 2 (10), is characterized in that, in the light path of the electromagnetic radiation sent by least one semiconductor light source (16,17), arrange Additional optical unit (30).
8. reflecting module according to claim 1 and 2 (10), is characterized in that, the electromagnetic radiation sent by least one semiconductor light source (16,17) is human eye visible ray, or infra-red radiation.
9. reflecting module according to claim 1 and 2 (10), is characterized in that, at least one first semiconductor light source (16) described and described other semiconductor light source (17) are configured to 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 CN102418894A (en) | 2012-04-18 |
| CN102418894B true CN102418894B (en) | 2015-11-04 |
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|---|---|---|---|
| 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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| JP5869223B2 (en) * | 2011-02-09 | 2016-02-24 | 株式会社小糸製作所 | Vehicle headlamp |
| DE102012101919A1 (en) * | 2012-03-07 | 2013-09-12 | Osram Opto Semiconductors Gmbh | Light source for vehicle has two lighting units, where each lighting unit is provided with multiple light emitting diode chips, while lighting units are separated from each other to emit light on reflector in switchable manner |
| AT512864B1 (en) * | 2012-05-09 | 2014-12-15 | Zizala Lichtsysteme Gmbh | Lighting device for generating a segmented light distribution and motor vehicle headlights and headlamp system |
| DE102012210444B4 (en) * | 2012-06-20 | 2020-06-18 | Automotive Lighting Reutlingen Gmbh | Vehicle lamp with several deflecting bodies in the reflector |
| US9308858B2 (en) * | 2012-07-13 | 2016-04-12 | Lg Innotek Co., Ltd. | Lamp unit and lighting system for vehicle |
| CN104903150B (en) | 2012-12-27 | 2018-08-07 | 金泰克斯公司 | Lighting system |
| TWI563219B (en) | 2013-10-28 | 2016-12-21 | Epistar Corp | Illumination system having semiconductor light source module |
| DE102014106342B4 (en) * | 2014-05-07 | 2023-07-27 | HELLA GmbH & Co. KGaA | Light module for a headlight of a vehicle |
| FR3022324B1 (en) * | 2014-06-16 | 2016-07-15 | Valeo Vision | ROTARY LIGHTING AND / OR SIGNALING MODULE |
| DE102014111445B4 (en) | 2014-08-12 | 2022-04-14 | HELLA GmbH & Co. KGaA | Headlights for vehicles with a primary optics element to generate an additional light distribution |
| MX2017003983A (en) * | 2014-09-24 | 2017-12-14 | Truck Lite Co Llc | Headlamp with lens reflector subassembly. |
| JP6448277B2 (en) * | 2014-09-29 | 2019-01-09 | 株式会社小糸製作所 | Vehicle lighting |
| DE102014226881A1 (en) | 2014-12-22 | 2016-06-23 | Automotive Lighting Reutlingen Gmbh | Motor vehicle headlight with a two-chamber reflection system |
| CN105927864B (en) * | 2015-02-27 | 2020-02-21 | 日亚化学工业株式会社 | Light emitting device |
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| FR3039624B1 (en) * | 2015-07-31 | 2020-01-17 | Valeo Vision | LIGHTING AND / OR SIGNALING DEVICE FOR VEHICLE |
| JP6538515B2 (en) * | 2015-10-09 | 2019-07-03 | 株式会社小糸製作所 | Vehicle lamp |
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| CN108916797B (en) * | 2017-03-31 | 2021-03-23 | 诚益光电科技股份有限公司 | Car light device and shielding plate structure thereof |
| JP6884042B2 (en) * | 2017-06-07 | 2021-06-09 | 株式会社小糸製作所 | Vehicle lighting |
| AT520345B1 (en) * | 2017-08-18 | 2019-06-15 | Zkw Group Gmbh | Lighting device for a motor vehicle headlight |
| WO2019243246A1 (en) * | 2018-06-19 | 2019-12-26 | Lumileds Holding B.V. | Operating a lighting module with led elements |
| DE102020102291A1 (en) | 2020-01-30 | 2021-08-05 | HELLA GmbH & Co. KGaA | Lighting device for vehicles |
| FR3127549B1 (en) * | 2021-09-30 | 2023-12-15 | Valeo Vision | AUTOMOBILE LIGHT DEVICE |
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- 2010-09-17 DE DE102010045847A patent/DE102010045847A1/en not_active Withdrawn
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- 2011-09-19 CN CN201110277362.1A patent/CN102418894B/en not_active Expired - Fee Related
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| CN101082398A (en) * | 2006-05-31 | 2007-12-05 | 株式会社小糸制作所 | Vehicle lamp unit |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010045847A8 (en) | 2012-05-24 |
| DE102010045847A1 (en) | 2012-03-22 |
| CN102418894A (en) | 2012-04-18 |
| EP2431657A2 (en) | 2012-03-21 |
| EP2431657B1 (en) | 2019-05-08 |
| EP2431657A3 (en) | 2014-01-15 |
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