CN103486521A - Light module - Google Patents
Light module Download PDFInfo
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- CN103486521A CN103486521A CN201310233391.7A CN201310233391A CN103486521A CN 103486521 A CN103486521 A CN 103486521A CN 201310233391 A CN201310233391 A CN 201310233391A CN 103486521 A CN103486521 A CN 103486521A
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- Prior art keywords
- light
- light source
- lamp device
- front lamp
- optical module
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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
- 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
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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]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
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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
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/334—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors
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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 head light device with a first light source and a second light source for a vehicle. The head light device is used for generating a light distribution area at the front portion of the vehicle through the two light sources. The light distribution portion has a middle far area, the middle far area is formed at the central sub area at the farthest position in front of the head light device, the light emitted by the first light source is distributed more widely than the second light source, the light emitted by the second light source is converged at the middle far area, the first light source and the second light source emits light of different colors. The head light device is characterized in that the light emitted by the first light source has higher color temperature than the light emitted by the second light source.
Description
Technical field
The present invention relates to a kind of preamble according to claim 1, for the front lamp device of motor vehicle.
Background technology
This front lamp device is by US7, and 703,961B2 is known.
Also known wherein the first light source is for generation of the front lamp device of dipped beam.Formed light distributes and has the bright areas below the horizontal line of vehicle front, and this bright areas is by the terminator gauge of the side of being located thereon.At this, secondary light source is closed.
In order to produce distance light, except the first light source is also connected secondary light source, this secondary light source also illuminates the second area be positioned on terminator the illumination further expanded that therefore produces the front part of vehicle zone.Use gas-discharge lamp as the first light source at this, although it is comparatively expensive, the basis illumination not only wide but also bright for the front part of vehicle zone provides large luminous flux.Use inexpensive based on halogen bulb as secondary light source, its light points to a distant place than strong-focusing ground, and it illuminates the point-like second area, this point-like second area supplements not only wide but also bright dipped beam and is positioned at least in part outside first area, is positioned on the terminator of dipped beam.Do not need expensive gas-discharge lamp for this light function.
Also used in the last few years with semiconductor light sources as the headlamp of light emitting diode (LED) work for motor vehicle, wherein this light source also for so-called key light function as dipped beam and/or distance light.The US7 that beginning is mentioned, 703,961B2 has described this headlamp.
In addition, known by DE102004053320: the key light module that will have conventional light source combines with the dynamic follow-up steering lamp module of LED.
In addition, the known headlamp with LED dipped beam module, it has the distance light module in the halogen technology equally.This headlamp is for example used in third generation Toyota Jim Press.
The US7 mentioned by beginning, the known front lamp device of 703,961B2 is with different semiconductor light sources work, and its difference is, and it sends the light of different colours.Five different optical modules of this front lamp device are at subregion A, B, the C of this whole light distribution D that throws light on, as shown in the Fig. 3 in US '-961.Each optical module can have the first LED chip and the second LED chip.The first LED chip produces white light.The second LED chip is for changing the color of light of optical module.The second LED chip can be less than the first LED chip and send less luminous flux.The second LED chip can be provided for the shorter light of transmitting ratio the first LED chip wavelength.But to this alternately, the second LED chip also can be provided for sending than the longer light of the first LED chip wavelength.
The luminous flux of the first LED chip by the optical module that makes to set mutually reduces and the luminous flux of the second LED chip of the optical module that makes to set mutually increases, and according to environmental condition, changes the tone of light in different subregion A, B and C.
Subregion B (apart from the light distributed areas) at the intermediate distance place that is arranged in vehicle front, the mean wavelength of light is in the situation that mist occurs or snow increases, this is because the light of longer wavelength is not scattered more consumingly.In addition, near the photodistributed wider subregion C (diffuse light distribution zone) be positioned at vehicle front is bright by illumination, and its mean wavelength shortens for the situation that there is no mist or snow, in order to improve pedestrian, road edge, the first-class observability of kerb.
Be arranged in vehicle front subregion A (converging light distributed areas) at a distance, the mean wavelength of light shortens with higher speed when travelling night at this.This is that this is known as Pu Kenya (Purkinje)-phenomenon because amphiblestroid sensitivity wavelength for short when dim is higher.Similarly, on moist runway, by the operation of rain inductor or rain brush, determine.
Be positioned at vehicle front subregion A at a distance and form far field under theme of the present invention.
Therefore, US7,703,961B2 discloses a kind of front lamp device for motor vehicle, there is the first light source and secondary light source, the light that wherein this front lamp device is provided in front area that light with two light sources is created in motor vehicle distributes, this light distributes and has middle far field, the far field of this centre is bright by the illumination of two light sources, wherein the light of the light ratio secondary light source of the first light source distributes widelyr, and the light of secondary light source gathers on the far field of this centre, and wherein the first light source and secondary light source send the light of different colours.
According to this american documentation literature, the light wavelength of secondary light source that illuminates far field is shorter than the wavelength of the first light source.
Summary of the invention
Be different from this, the present invention proposes: the light of the first light source has the colour temperature higher than the light of secondary light source.In other words, in the present invention, the light of secondary light source is compared the light that need to more be similar to the blackbody radiator with lower temperature with the light of the blackbody radiator of higher temperature, and the light of the first light source is compared the light that need to more be similar to the blackbody radiator with higher temperature with the light of the blackbody radiator of lower temperature.
The degree of the colour effect that known colour temperature is light source.Colour temperature is defined as the temperature of black matrix, i.e. the temperature of Planckian radiator, and its alpha spectrum produces definite colour effect.It is partially red photochromic that relatively low colour temperature belongs to, and higher colour temperature belongs to partially blue white photochromic.Be different from this objective definition, ruddiness is also referred to as thermo-optical, and partially blue white light is also referred to as cold light.
Based on halogen bulb for example is provided on color and the about similar light of light of the blackbody radiator of 3200 ℃ of heat, and gas-discharge lamp is provided on color the similar light of light with the blackbody radiator that surpasses 5000 ℃ of heat.
White for the radiant light of the modern efficient LED of car lighting has obviously higher colour temperature (about 5200-6000 ° K) than traditional based on halogen bulb (about 3100-3400 ° K).
This radiant light therefore be cold and for indigo plant white.The color effects of gas-discharge lamp tends to this direction, but compares between White LED and based on halogen bulb.Running test shows: at least subjective color effects can produce, and in the LED headlamp of current up-to-the-minute following guiding (it also illuminates the far field in motor vehicle the place ahead), visual contrast is good not as the halogen headlamp in photodistributed far field.
And, in the LED headlamp, the euphorosia degree is better in Zhong He side, near region.
The invention has the advantages that these shortcomings of by change, throwing light on and eliminating or at least reduce usual LED headlamp of so trusting.But this improvement must be not limited to the LED headlamp, even but can still obtain in the gas discharge headlamp in a similar fashion.In addition, it is contemplated that, photodistributed change according to the present invention also is applied to photodistributed other subregions.
Advantage of the present invention is considered following situation: on retina near optical axis (being that the people wants the clear position focused on while watching thing), the quantity of blue responsive cellula visualis reduces with respect to amphiblestroid other positions.
This is compensation in the following way in the present invention, that is: in the present invention, for example dipped beam distributes and/or distance light be distributed in its whole extended distance take relatively that the light of high color temperature (for example about 5200-6000 ° K) produces and only in photodistributed far field the light corresponding to for example, light with relatively low colour temperature (colour temperature of halogen light) (being the light of colour temperature as 3100-3400 ° of K) distribute, but at least obvious hotter white light, to be superposeed.
Therefore thus, in photodistributed central authorities, the colour effect of blue and white obviously moves and improves visual contrast towards yellowish-white color.
Because the light of secondary light source is mainly used in revising color dot and the tone to a certain extent thus of the light of the first light source in the zone by two light illuminatings, therefore also realize that it only produces the little luminous flux of comparing with the luminous flux of the first light source.In a preferred embodiment, two light sources make the logical maximum 70% of light that the luminous flux of secondary light source is the first light source dimensionally.
Other advantages are provided by theme, specification and the accompanying drawing of dependent claims.
The feature that is appreciated that feature described above and hereinafter will explains can be not only with the corresponding combination provided but also with other combinations or applied individually, and do not deviate from scope of the present invention.
The accompanying drawing explanation
Embodiments of the invention are shown in the drawings and elaborate hereinafter.Accompanying drawing is respectively to schematically show:
The light on the screen of the measurement perpendicular to travel direction that Fig. 1 is produced by the embodiment according to front lamp device of the present invention distributes;
The other light on the screen of the measurement perpendicular to travel direction that Fig. 2 is produced by the described embodiment according to front lamp device of the present invention or another embodiment distributes;
Fig. 3 is according to the front view of an embodiment of front lamp device of the present invention;
Fig. 4 is according to the side view of the optical module of another embodiment of front lamp device of the present invention; And
Fig. 5 is according to the partial view of the optical module of another embodiment of front lamp device of the present invention.
The specific embodiment
Particularly, Fig. 1 illustrates light and distributes, how it is formed on one and measures screen above, is positioned at front lamp device the place ahead of motor vehicle the place ahead or radiation when this measurement is shielded in the embodiment according to front lamp device of the present invention is applied in road automobile to a certain extent along light radiation direction.
Be positioned at vehicle front at this along light radiation direction for showing and assessing photodistributed measurement screen.Vertical line V will measure screen and be divided into left side and right-hand part, and wherein the extension of the optical axis of vertical line and front lamp device is crossing and perpendicular to horizontal plane and also extend perpendicular to travel.Optical axis at this corresponding to the key light direction of propagation and be roughly parallel to the vehicle longitudinal axis.Horizontal line H will measure screen and be divided into the first half and Lower Half.Horizontal line is indicated in the horizontal plane trend of vehicle front.
Dipped beam distribution 10 is indicated by the family of curves of the sealing of not interrupting in Fig. 1.The face that is positioned at this family of curves inside is showed nearly photodistributed bright areas.Bright areas is positioned at terminator 12 belows.In the example shown, terminator is to the right from 15 ° of risings of intersection point of vertical line V and horizontal line H.That is, the dipped beam that relates to right-hand traffic distributes, and wherein throw light on higher than the travel left side and therefore have larger sphere of action in the travel right side.
Dipped beam distributes and is produced by the front lamp device for motor vehicle with the first light source and secondary light source.
At this, front lamp device is provided for producing a light distribution in the motor vehicle front end zone with the light of two light sources, and this light distributes and has middle far field 14.Middle far field forms the central subregion of dipped beam distribution 10, and in this central authorities' subregion, dipped beam has the larger effect scope on street.At this light, be distributed in the diagram of measuring on screen, middle far field 14 near horizontal plane in dipped beam distributes on the left of the intersection point at vertical line V and horizontal line H and right side.The far field of this centre is extended 10 ° of maximum +/-and preferably is not wider than 3 ° of +/-with wanting to do to the right.At this, this angle-data relates to the angle between the marginal ray that marks the edge, far field of optical axis and light beam.
Left side and the right side in the far field 14 in the middle of the zone of dipped beam distribution 10 also is positioned at, the light out-focus of secondary light source is on this zone, and the illumination in this zone is by the light domination of the first light source.In a word, dipped beam distribution 10 comprises the broad edge district 16 in middle far field 14 and this far field of compensation.
Along with from below along the V line until the vertical height that the H line increases, along the orientation measurement of the longitudinal axis of motor vehicle apart from the distance of vehicle and therefore apart from the distance of front lamp device, increase.Far field 14 converges near the zone be positioned at terminator along the direction of vertical line V.This arrangement is positioned at the travel of vehicle front position at a distance corresponding to the sphere of action boundary place at dipped beam.Therefore relate to far field 14.
Be positioned at the arrangement in photodistributed not only wide but also bright zone, the far field 14 in the middle of relating to based on far field 14 along horizontal line H.
At this, far field needn't be arranged on center forcibly, but also can be to the right or particularly maximum 3 ° of left avertence decentre positions, but be arranged on center, be not at marginal position.
Middle far field is bright by the illumination of two light sources, and wherein the light of the first light source is distributed in whole dipped beam distribution 10, and on far field 14 and broad edge district 16 in the middle of being distributed in, and the light of secondary light source converges on middle far field 14.At this, the first light source and secondary light source send the light of different colours, and wherein the light of the light ratio secondary light source of the first light source has higher colour temperature.The whole zone of dipped beam distribution 10 is with the responsive optical illumination of subjectivity colder white (blue white).In addition, in middle far field 14, the light with the first light source of secondary light source is compared this light of optical superposition of subjective partial heat white (yellowish-white), thereby the light of a more color is provided in this zone, and human eye is compared and is had more cellula visualis with the cold white light for the first light source itself for this light when focusing on this zone.
Fig. 2 shows distance light and distributes 18, and it is by family of curves's gauge of unbroken sealing in Fig. 2, and wherein brightness increases from outside to inside.The shadow surface that is positioned at family of curves inside is showed photodistributed brighter subregion 14 far away and also can be described as far field.In projection on measuring screen, the feature in this far field also is center.
Be similar to dipped beam and distribute, distance light distributes and is also produced by the front lamp device for motor vehicle with the first light source and secondary light source.
At this, front lamp device is provided for producing a light distribution in the motor vehicle front end zone with the light of two light sources, and it has middle far field 14.Middle far field 14 forms the photodistributed central subregion that is positioned at farthest, front lamp device the place ahead far away.
Along with the vertical height increased along vertical line V, in this longitudinal axis along motor vehicle, measure apart from the distance of vehicle and therefore apart from the distance of front lamp device, also increase.Only have when having object as other motor vehicles, tree or analog, the bright areas of horizontal line H top just plays a role.
Middle far field 14 in distance light distributes on left side and the right side of the intersection point of horizontal line H and vertical line V.Far field also preferably is not wider than 3 ° of +/-with 10 ° of the maximum +/-of left extension to the right.At this, angle-data relates to the angle between the marginal ray that marks the edge, far field of optical axis and light beam.
Be positioned at photodistributed wide regional 16 arrangement along horizontal line H, the far field 14 at this in the middle of also relating to based on far field 14.
At this, far field needn't be arranged on center forcibly, but also can be to the right or particularly maximum 3 ° of left avertence decentre positions, but be arranged on center, be not at marginal position.Angle-data refers to whole far field to the right or the angle moved left.Angle value 0 is corresponding to the intersection point of H line and V line.
Middle far field is bright by the illumination of two light sources, and wherein the light of the first light source also is distributed on the photodistributed zone be positioned at outside middle far field, and the light of secondary light source converges on middle far field.At this, the first light source and secondary light source send different colors, and wherein the light of the light ratio secondary light source of the first light source has higher colour temperature.
Left side and the right side in the far field in the middle of photodistributed zone far away also is positioned at, the light out-focus of secondary light source is on this zone, and the illumination in this zone is by the light domination of the first light source.
The whole zone of distance light distribution 18 is bright with the illumination of subjectivity colder white (blue white) sensitivity.In addition, in middle far field 14, the light with the first light source of secondary light source is compared responsive this light of optical superposition of subjective partial heat white (yellowish-white), thereby the light of a more color is provided in this zone, and human eye is compared and is had more cellula visualis with the cold white light for the first light source itself for this light when focusing on this zone.Thus, the present invention can be used for dipped beam and distance light.Therefore, advantage of the present invention produces for dipped beam and distance light equally.Therefore in a word, distance light distribution 18 comprises the broad edge district 16 in middle far field 14 and this far field of compensation.Similarly, the distribution of the dipped beam in Fig. 1 10 comprises the broad edge district 16 in middle far field 14 and this far field of compensation.
Fig. 3 illustrates the front view according to the embodiment of the front lamp device for motor vehicle 22 of the present invention, and it is provided for producing at least one in the light distribution shown in Fig. 1 and 2.At this, front view refers to the view obtained towards the observer of front lamp device 22 by the light path that is arranged in headlamp the place ahead and direction of observation here.
Dipped beam module 24 has the first light source in this form of implementation, and is provided for making its light to be transformed into legal dipped beam distributing, that is the distribute dipped beam of 10 profile of the dipped beam that for example has Fig. 1 distributes.Notice for the sake of clarity, it is irrelevant whether this profile and far field are additionally illuminated by secondary light source.Dipped beam module 24 is only with the first light source works.
For this reason, optical module 24 and 26 particularly comprises the light source with high color temperature.
Double-functional module 28 has at least one secondary light source, and, on the far field in the middle of being provided for the light of several light sources in ground is converged to, wherein middle far field is the far field of nearly photodistributed centre or the far field of photodistributed centre far away.The title of double-functional module comes from: this module not only can converge to the light of secondary light source in dipped beam center of distribution distance light district but also this light can be converged in distance light center of distribution distance light district, wherein can between these two alternative schemes, replace, thereby this double-functional module can be realized one of two alternative schemes a time, another in can realizing two alternative schemes in another time.The feature of the first light source and secondary light source is at this, and it sends the light of different colours, and wherein the photophase of the first light source has the colour temperature higher than the light of secondary light source.
In a form of implementation, double-functional module is the projection module with shadow shield, this shadow shield can replace and have the shadow shield seamed edge between dipped beam position and distance light position, and shadow shield seamed edge projecting lens by projection module in the dipped beam position of shadow shield forms as the terminator in formed light distribution.
By common operation dipped beam module 24 and double-functional module 28, according to the front lamp device 22 of Fig. 3, produce light distribution as shown in Figure 1 in its dipped beam module.
By common operation distance light module 26 and double-functional module 28, according to the front lamp device 22 of Fig. 3, produce light distribution as shown in Figure 2 in its distance light module.
According to the front lamp device 22 of Fig. 3, be therefore the embodiment for the front lamp device of motor vehicle, there is the first light source and secondary light source, wherein front lamp device is provided for distributing at motor vehicle front end region generating one light with the light of two light sources, this light distributes and has middle far field 14, the far field of this centre forms the photodistributed central subregion that is positioned at farthest, front lamp device the place ahead, wherein the light of the first light source also illuminates the photodistributed zone 16 be positioned at outside middle far field 14, and the far field 14 in the middle of the light of secondary light source only illuminates, and wherein the first light source and secondary light source send the light of different colours, and wherein the light of the light ratio secondary light source of the first light source has higher colour temperature.
Fig. 4 illustrates and comprises the side view that produces nearly photodistributed upper optical module 36 and produce the construction unit 34 of photodistributed lower optical module 38 far away.Construction unit is the form of implementation of the double-functional module 28 of pie graph 3 thus.
Dipped beam light source 40 is arranged in the first half of construction unit 34.From the light of dipped beam light source, by the optics set mutually, transferred in the dipped beam distribution.At this, when the light beam in far field 14 is only illuminated in radiation, can relate to the far field with terminator 14 of Fig. 1 or relate to the wider dipped beam distribution with broad edge district 16 as shown in Figure 1.
In this form of implementation, the optics set mutually has upper half shell reflector 42, and it has oval basic configuration and forms construction unit with the shadow shield 44 of level.Dipped beam light source 40 arranges like this with respect to upper half shell reflector 42, makes its light focus in inner light distribution, and this inner light distributes by shadow shield seamed edge 46 gauges of level shadow plate and also can be described as intermediate light and distributes.Projecting lens 48 arranges like this with respect to the shadow shield seamed edge 46 of reflector 42 and shadow shield 44, make this projecting lens that inner light is distributed and distributes and project in the front area in construction unit 34 the place aheads as exterior light, wherein shadow shield seamed edge 46 forms as terminator.Therefore projection theory is known and no longer to its further explaination.
In a form of implementation, dipped beam light source 40 refers to the first light source, that is sends the light source of the light of higher color temperature.In this case, the optics set mutually is provided for producing wide dipped beam and distributes.
In an alternative form of implementation, the dipped beam light source refers to secondary light source, that is sends the light source of the light of low colour temperature.In this case, the optics set mutually is provided for producing the far field of nearly photodistributed centre.
Distance light light source 50 is arranged in the Lower Half of construction unit 34.From the light of distance light light source, by the optics set mutually, transferred in the distance light distribution.At this, when the light beam in far field 14 is only illuminated in radiation, can relate to the far field 14 of Fig. 2 or relate to the wider distance light distribution with broad edge district 16 as shown in Figure 2.
In this form of implementation, the optics set mutually has lower half shell reflector 52.Distance light light source 50 arranges like this with respect to lower half shell reflector 52 and projecting lens 48, makes its light be distributed and be projected in construction unit 34 the place aheads as the outside distance light according to Fig. 2 by projecting lens 48.The optical axis 54 that comprises optical module construction unit and that realized by construction unit at this from the light beam of construction unit, in the light according to Fig. 1 and 2 distributes, the H-V intersection point is positioned on this optical axis.
The geometry that comprises the system of half shell reflector 52 and distance light light source 50 is constructed so that at this terminator does not form more shrilly when distance light moves.Alternately or addedly, shadow shield is constructed so that its seamed edge that forms terminator can rout up ground, pull out ground or break away from and focus on other forms, thereby shadow shield seamed edge 46 is not formed on during distance light distributes.
In a form of implementation, distance light light source 50 refers to the first light source, that is sends the light source of the light of higher color temperature.In this case, the optics set mutually is provided for producing wide distance light and distributes.
In an alternative form of implementation, distance light light source 50 refers to secondary light source, that is sends the light source of the light of low colour temperature.In this case, the optics set mutually is provided for producing the far field of photodistributed centre far away.
Therefore, the light that utilizes two such construction units can produce Fig. 1 and 2 shown type distributes.Utilize the first half correspondingly to produce the dipped beam distribution as the far field of wide dipped beam distribution or nearly photodistributed centre.Utilize Lower Half correspondingly to produce the distance light distribution as the far field of wide distance light distribution or photodistributed centre far away.
In the form of implementation in the far field that produces photodistributed centre far away, secondary light source thereby be the part of independent difunctional optical module.
Also preferably, independent difunctional optical module can be between dipped beam operation and distance light operation alternately.
In another preferred form of implementation, difunctional optical module has secondary light source, but does not have the first light source.Itself thus for generation of far field.
In another preferred form of implementation, difunctional optical module has at least one secondary light source and at least one first light source.In this form of implementation, it can produce, and complete distance light distributes and/or complete dipped beam distributes, and it has only by the broad edge district of the first light illuminating and the far field of being illuminated by the first light source and secondary light source.
Also preferably, front lamp device 22 has construction unit 34, and it comprises the nearly photodistributed upper optical module 36 of generation and produces nearly photodistributed lower optical module 38.
Fig. 5 illustrates the view according to the part of the optical module of another embodiment of front lamp device of the present invention.Specifically, Fig. 5 illustrates a form of implementation of semiconductor light sources half shell reflector 56, wherein bright with the illumination of the first light source 58 and secondary light source 60 with half shell reflector 56.Here also should be suitable for, the light of the first light source 58 is characterised in that the colour temperature higher than the light of secondary light source 60.The definition of this difference is as first or the classification of secondary light source.The first light source is the light source for having higher color temperature correspondingly.
The first light source 58 and secondary light source in the theme of Fig. 5 as semiconductor light sources, particularly realize as light emitting diode (LED).At this, the first light source has a plurality of LED58.1 to 58.4 here, because it must produce larger luminous flux.Described LED or more situation be secondary light source 60 LED preferably than the LED58.1 to 58.4 of the first light source 58 arrange more close reflector 56 optical axis 54 and therefore be positioned at this optical axis center.The light that this arrangement is simplified secondary light source on the one hand focuses in the far field of the corresponding photodistributed centre that will produce, and this light distribution should be the dipped beam distribution or distance light distributes and the wider distribution of the light of the first light source.
In a preferred form of implementation, the central area 62 of reflector 56 is provided for making in the far field of the light of secondary light source 60 in the middle of preferably being directed to, and away from the optical axis 54 of reflector be positioned at reflector region 64,66 at a distance be provided for making the first light source 58 light ratio this distribute further while being realized by central area 62.
Another preferred form of implementation is set: middle far field is only illuminated with hotter tone respectively and with other zones of colder tone illumination plane.
According to another possible form of implementation of front lamp device of the present invention, set: the asymmetrical legal dipped beam light that the shadow shield module is provided for producing with secondary light source the form that only is the far field with terminator distributes, and the sub-light produced by the first light source distribute there is level as far as possible and the therefore symmetrical terminator extended.This horizontal terminator for example arranges fuzzylyyer and/or is darker in a form of implementation.
There is semiconductor light sources according to the preferred implementing form of front lamp device of the present invention, particularly as the first light source, as light source with higher color temperature.As the preferred based on halogen bulb particularly of the secondary light source with low colour temperature, it can be provided and its feature particularly is by inexpensive, and it is combined with the LED as the first light source and allows as hanging down the secondary light source of colour temperature.
At this also advantageously, secondary light source only must produce less luminous flux, because it focuses on less space angle.Therefore can be susceptible to, there is the based on halogen bulb of lower power consumption, as the based on halogen bulb of H8 model, just enough.
When semiconductor light sources, particularly LED are used as the first and second light sources, a preferred form of implementation is set: use the LED of same type, but it is from visibly different color.As everyone knows, the character of efficient LED is limited by large manufacture deviation.Should disadvantageous character own cause counter productive in this form of implementation.Therefore, for example the income of available LED is improved by production technology.Can also use the photochromic LED that commercially is called cold white (higher color temperature) or hot white (low colour temperature).
Another preferred form of implementation is set: the semiconductor light sources of same type, particularly LED are for the first and second light sources, and wherein LED preferably is embodied as independent chip, especially have the corresponding independent conversion coating of the phosphorus for each chip.Also can use the monochromatic LED that for example there is yellow or redness for secondary light source.
Another preferred form of implementation is set: use gas-discharge lamp simultaneously as the first and second light sources, a particular sub-area that wherein is arranged on the optical element (for example reflector) in the light path of light of gas-discharge lamp is provided with conversion coating.This layer is provided for making the light of propagating in the subregion of light path to convert the light with low colour temperature to, and this changes the tone in the whole photodistributed zone set mutually accordingly.
This form of implementation has advantages of very large: only need the light source for two color component.Therefore, according to form of implementation, the quantity of required reflection and/or the element of refract light reduces, and this reduces construction expenditure and complexity, and brings the corresponding advantage about cost, topology requirement and reliability aspect.
Another preferred form of implementation is set: front lamp device has compact as far as possible integral module, its far field in the middle of only producing, and its module with the other photodistributed wide region of generation combines.
This form of implementation takes full advantage of the following fact: always only photodistributed core must be strengthened in an identical manner.At this, this module needn't necessarily meet separately the prescriptive rules of exposure value, because other optical modules provide its contribution equally.Therefore, the light of the module in the far field in the middle of focusing on can be manufactured in large quantities and therefore inexpensively, because it also can not use in different headlamp projections with changing.
Also preferably, the light of the module in the far field in the middle of focusing on is independent module, and itself and other module together is arranged on headlamp inside.An alternative preferred form of implementation is set: the light of the module in the far field in the middle of this focusing on is integrated in module for same smooth function, for example dipped beam module.
Therefore on a circuit board, can arrange send cold white light, as a plurality of LED of the first light source, and on the subregion of same circuit board or adjacent to this circuit board, some LED as secondary light source that send warm white can be set.Far field in the middle of secondary light source illuminates by same projection optical device, also produce its remaining light by it and distribute.For this situation preferably, provide the LED chip of the light of low colour temperature to be positioned at the center of chip layout structure and illuminate an appropriate area of optics, the light that this zone makes to inject from chip points to the far field of photodistributed centre.This is corresponding to the form of implementation shown in Fig. 5.
Both projection module and reflecting module can be used, also its combination can be used.The system that can use dual function system, three function systems for dipped beam and distance light or realize more smooth functions at this, as long as only compare and hang down the optical illumination of colour temperature with the zone in the far field with each this centre of photodistributed vicinity in the far field of each photodistributed centre.
Particularly preferably, the module that in the headlamp with LED dipped beam module and halogen distance light module, the module structure of halogen distance light is double-functional module, can switch between distance light module and dipped beam module.
Preferably use difunctional projection module for this reason.Halogen core this LED dipped beam that superposes strongly in the dipped beam model and in the distance light model.
Input best and be coupled in main optical path if there is the light of low colour temperature, also can use the light in the white territory (for example yellow) that no longer belongs to legal, as long as formed secondary colour keeps legal reliable white tone in colour gamut.
Also preferably, when the wide photodistributed optical module of generation is embodied as swingable optical module, the independent optical module that has secondary light source and therefore send the light of low colour temperature is embodied as equally swingable optical module and correspondingly swings thereupon, thereby it always illuminates formed whole photodistributed roughly the same part.Two optical modules jointly swing in this form of implementation.It for example relative to each other is arranged in whole swingable assembly rigidly.
To this, alternative form of implementation is set: the optical module that sends the light of low colour temperature is movable (for example swingable) with respect to the optical module of the light that sends higher color temperature, with the bright whole photodistributed different subregions of illumination by low colour temperature.
In a form of implementation, these modules are building blocks of headlamp, are arranged in same housing.In another form of implementation, it is arranged in different headlamp housings.
Claims (23)
1. the front lamp device for motor vehicle (22), have the first light source (58) and secondary light source (60), and wherein, this front lamp device is set to produce a light distribution (10 with the light of two light sources in the front area of motor vehicle; 18), this light distributes and has middle far field (14), and this light distributes bright by the illumination of two light sources, wherein the light of the light ratio secondary light source (60) of the first light source (58) distributes widelyr, and on the far field (14) in the middle of the light of secondary light source gathers, and wherein the first light source and secondary light source send the light of different colours, it is characterized in that, the light of the first light source (58) has the higher colour temperature of light than secondary light source (60).
2. front lamp device according to claim 1, is characterized in that, the part that secondary light source is independent difunctional optical module.
3. front lamp device according to claim 2, is characterized in that, independent difunctional optical module can switching between dipped beam operation and distance light operation.
4. according to the described front lamp device of claim 2 or 3, it is characterized in that, difunctional optical module is embodied as and has as the reflector of primary optics with as the projected light module of the lens of secondary optics.
5. according to the described front lamp device of one of claim 2 to 4, it is characterized in that, difunctional optical module has secondary light source, but does not have the first light source.
6. according to the described front lamp device of one of claim 2 to 4, it is characterized in that, difunctional optical module has secondary light source and at least one first light source.
7. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, this front lamp device has the construction unit (34) that comprises the nearly photodistributed upper optical module (36) of generation and produce photodistributed lower optical module (38) far away.
8. front lamp device according to claim 7 (22), is characterized in that, dipped beam light source (40) is arranged in the first half of construction unit.
9. according to the described front lamp device of claim 7 or 8 (22), it is characterized in that, distance light light source (50) is arranged in the Lower Half of construction unit.
10. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, two light sources are determined size, maximum 70% of the luminous flux that the luminous flux that makes secondary light source is the first light source like this.
11. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, the first light source (58) has than the more semiconductor light sources (58.1,58.2,58.3,58.4) of secondary light source (60).
12. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, this front lamp device has semiconductor light sources (58.1,58.2,58.3,58.4), particularly light emitting diode is as the first light source, as the light source with higher color temperature.
13. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, this front lamp device has semiconductor light sources, particularly light emitting diode is as secondary light source (60), as the light source with low colour temperature.
14. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, this front lamp device has at least one based on halogen bulb as the secondary light source (60) with low colour temperature.
15. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, semiconductor light sources is used as the first light source and secondary light source, wherein, use the semiconductor light sources of same type, but it is derived from visibly different colour gamut.
16. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, semiconductor light sources is used as the first and second light sources, wherein the semiconductor light sources of same type is used to the first and second light sources, but it is embodied as independent chip, this chip correspondingly has the independent phosphorus conversion coating for each chip.
17. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, semiconductor light sources is used as the first and second light sources, wherein, a plurality of semiconductor light sources of sending cold white light are set on a circuit board as the first light source, and at least one semiconductor light sources of sending warm white can be set as secondary light source on the subregion of same circuit board or on the subregion of adjacent this circuit board.
18. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, one gas-discharge lamp is as the first and second light sources, and wherein, a particular sub-area that is arranged on the optical element in the light path of light of gas-discharge lamp is provided with conversion coating.
19. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, the optical module with first light source is arranged in common headlamp housing with the optical module with secondary light source.
20. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, the optical module with first light source is arranged in the different headlamp housings of front lamp device with the optical module with secondary light source.
21. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, the independent optical module that has secondary light source and therefore send the light that hangs down colour temperature, when the wide photodistributed optical module of generation is embodied as swingable optical module, is embodied as swingable optical module corresponding together swing thereupon equally.
22. according to the described front lamp device of one of aforementioned claim (22), it is characterized in that, the optical module that sends the light of low colour temperature is movable with respect to the optical module of the light that sends higher color temperature, so that with hanging down the bright whole photodistributed different subregions of illumination of colour temperature.
23. front lamp device according to claim 22 (22), wherein, movable subregion has upper terminator, and it comprises 15 ° of angle of climbs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012209927.1 | 2012-06-13 | ||
| DE102012209927.1A DE102012209927B4 (en) | 2012-06-13 | 2012-06-13 | light module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103486521A true CN103486521A (en) | 2014-01-01 |
| CN103486521B CN103486521B (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310233391.7A Expired - Fee Related CN103486521B (en) | 2012-06-13 | 2013-06-13 | Optical module |
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| Country | Link |
|---|---|
| JP (1) | JP2013258146A (en) |
| CN (1) | CN103486521B (en) |
| DE (1) | DE102012209927B4 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202444A (en) * | 2014-06-26 | 2015-12-30 | 中强光电股份有限公司 | Lighting device for vehicle |
| CN106949418A (en) * | 2016-01-06 | 2017-07-14 | 比亚迪股份有限公司 | Vehicle dipped headlight group and the vehicle with it |
| CN106989336A (en) * | 2015-11-20 | 2017-07-28 | 株式会社小糸制作所 | Lamps apparatus for vehicle and vehicle lamp system |
| CN108139048A (en) * | 2015-09-17 | 2018-06-08 | Zkw集团有限责任公司 | For emitting the motor vehicle headlamp of long-range light distribution |
| CN109373281A (en) * | 2018-11-13 | 2019-02-22 | 深圳智诺车灯科技有限公司 | A kind of LED automobile lower beam headlamp |
| CN109476253A (en) * | 2016-09-07 | 2019-03-15 | 宝马股份公司 | Searchlight for motor vehicle |
| CN111406004A (en) * | 2017-08-25 | 2020-07-10 | 黑拉有限责任两合公司 | Method for controlling at least one light module of a lighting unit, computer program product and computer-readable medium |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104143B (en) | 2014-03-03 | 2019-07-12 | 株式会社小糸制作所 | The control system of lamps apparatus for vehicle and lamps apparatus for vehicle |
| EP3549097A1 (en) | 2016-12-01 | 2019-10-09 | Lumileds Holding B.V. | Method of analyzing a light distribution of a vehicle headlight |
| EP3505818B1 (en) * | 2017-11-16 | 2023-01-04 | Stanley Electric Co., Ltd. | Vehicular lamp and lighting control circuit of vehicular lamp |
| DE102020117785A1 (en) | 2020-07-06 | 2022-01-13 | Marelli Automotive Lighting Reutlingen (Germany) GmbH | Motor vehicle headlights with a light source with a square light-emitting surface |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001266620A (en) * | 2000-03-01 | 2001-09-28 | Robert Bosch Gmbh | Lighting system for vehicle |
| CN1379205A (en) * | 2001-04-04 | 2002-11-13 | 市光工业株式会社 | Vehicle lamp |
| US20020191413A1 (en) * | 2001-06-19 | 2002-12-19 | Koito Manufacturing Co., Ltd. | Headlamp for vehicle |
| CN1613687A (en) * | 2003-11-04 | 2005-05-11 | 株式会社小糸制作所 | Vehicle headlight |
| US20060285341A1 (en) * | 2005-06-16 | 2006-12-21 | Yasushi Yatsuda | Lamp, optical module, vehicle headlight including the same, and method for controlling color tone of emitted light |
| CN101178160A (en) * | 2006-11-09 | 2008-05-14 | 株式会社小糸制作所 | Lighting unit for vehicles |
| CN101793372A (en) * | 2009-01-30 | 2010-08-04 | 市光工业株式会社 | Vehicle headlamp |
| CN102330948A (en) * | 2011-08-31 | 2012-01-25 | 华南理工大学 | Reflector and combined headlamp for LED automobile illumination |
| CN102333397A (en) * | 2010-07-14 | 2012-01-25 | 富士迈半导体精密工业（上海）有限公司 | Vehicle-mounted road lighting system |
| CN102345821A (en) * | 2010-07-23 | 2012-02-08 | 松下电工株式会社 | Lighting device |
| CN202140941U (en) * | 2011-06-14 | 2012-02-08 | 芜湖安瑞光电有限公司 | Light-emitting diode (LED) automotive lamp with adjustable color temperature |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011108588A (en) * | 2009-11-20 | 2011-06-02 | Koito Mfg Co Ltd | Light emitting module and vehicle lamp |
-
2012
- 2012-06-13 DE DE102012209927.1A patent/DE102012209927B4/en not_active Expired - Fee Related
-
2013
- 2013-06-11 JP JP2013122714A patent/JP2013258146A/en active Pending
- 2013-06-13 CN CN201310233391.7A patent/CN103486521B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001266620A (en) * | 2000-03-01 | 2001-09-28 | Robert Bosch Gmbh | Lighting system for vehicle |
| CN1379205A (en) * | 2001-04-04 | 2002-11-13 | 市光工业株式会社 | Vehicle lamp |
| US20020191413A1 (en) * | 2001-06-19 | 2002-12-19 | Koito Manufacturing Co., Ltd. | Headlamp for vehicle |
| CN1613687A (en) * | 2003-11-04 | 2005-05-11 | 株式会社小糸制作所 | Vehicle headlight |
| US20060285341A1 (en) * | 2005-06-16 | 2006-12-21 | Yasushi Yatsuda | Lamp, optical module, vehicle headlight including the same, and method for controlling color tone of emitted light |
| CN101178160A (en) * | 2006-11-09 | 2008-05-14 | 株式会社小糸制作所 | Lighting unit for vehicles |
| CN101793372A (en) * | 2009-01-30 | 2010-08-04 | 市光工业株式会社 | Vehicle headlamp |
| CN102333397A (en) * | 2010-07-14 | 2012-01-25 | 富士迈半导体精密工业（上海）有限公司 | Vehicle-mounted road lighting system |
| CN102345821A (en) * | 2010-07-23 | 2012-02-08 | 松下电工株式会社 | Lighting device |
| CN202140941U (en) * | 2011-06-14 | 2012-02-08 | 芜湖安瑞光电有限公司 | Light-emitting diode (LED) automotive lamp with adjustable color temperature |
| CN102330948A (en) * | 2011-08-31 | 2012-01-25 | 华南理工大学 | Reflector and combined headlamp for LED automobile illumination |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202444A (en) * | 2014-06-26 | 2015-12-30 | 中强光电股份有限公司 | Lighting device for vehicle |
| CN108139048A (en) * | 2015-09-17 | 2018-06-08 | Zkw集团有限责任公司 | For emitting the motor vehicle headlamp of long-range light distribution |
| CN108139048B (en) * | 2015-09-17 | 2020-08-21 | Zkw集团有限责任公司 | Motor vehicle headlight for emitting a remote light distribution |
| CN106989336A (en) * | 2015-11-20 | 2017-07-28 | 株式会社小糸制作所 | Lamps apparatus for vehicle and vehicle lamp system |
| CN106949418A (en) * | 2016-01-06 | 2017-07-14 | 比亚迪股份有限公司 | Vehicle dipped headlight group and the vehicle with it |
| CN106949418B (en) * | 2016-01-06 | 2020-11-06 | 比亚迪股份有限公司 | Vehicle passing light group and vehicle with same |
| CN109476253A (en) * | 2016-09-07 | 2019-03-15 | 宝马股份公司 | Searchlight for motor vehicle |
| CN111406004A (en) * | 2017-08-25 | 2020-07-10 | 黑拉有限责任两合公司 | Method for controlling at least one light module of a lighting unit, computer program product and computer-readable medium |
| CN109373281A (en) * | 2018-11-13 | 2019-02-22 | 深圳智诺车灯科技有限公司 | A kind of LED automobile lower beam headlamp |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012209927B4 (en) | 2016-03-31 |
| CN103486521B (en) | 2019-03-08 |
| JP2013258146A (en) | 2013-12-26 |
| DE102012209927A1 (en) | 2013-12-19 |
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