CN109578929A - Light emitting device for motor vehicle searchlight - Google Patents
Light emitting device for motor vehicle searchlight Download PDFInfo
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- CN109578929A CN109578929A CN201810941879.8A CN201810941879A CN109578929A CN 109578929 A CN109578929 A CN 109578929A CN 201810941879 A CN201810941879 A CN 201810941879A CN 109578929 A CN109578929 A CN 109578929A
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- China
- Prior art keywords
- light
- emitting device
- reflector
- light emitting
- reflecting part
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—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
- F21S41/336—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of patch like sectors with discontinuity at the junction between adjacent areas
-
- 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]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
-
- 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
-
- 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
- F21S41/337—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector having a structured surface, e.g. with facets or corrugations
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
- F21V7/048—Optical design with facets structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
-
- 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]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
- F21S41/145—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device the main emission direction of the LED being opposite to the main emission direction of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- 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 light emitting device (1) that the present invention relates to a kind of for motor vehicle searchlight, comprising: there is the reflector (2) for reflecting total face (2a), for at least partly reflected light on the direction of the optical axis (x) of reflector；The first and second light source (3' for light shining on reflector (2), 3''), wherein, first and second light sources (the 3', 3'') at least it is separated from each other on the direction of the optical axis (x) perpendicular to the reflector (2), wherein, the total face of reflection (2a) of the reflector (2) has multiple the first reflecting part facets (2a') towards the first light source (3'), the first reflecting part facet is arranged to that the light (3') irradiated by the first light source is imaged in the form of at least the first light distribution of the first smooth function, wherein, the total face of reflection (2a) of the reflector (2) has multiple the second reflecting part facets (2a'') towards the second light source (3''), the second reflecting part facet is arranged to the second light distribution of the second smooth function Form the light irradiated by the second light source (3'') is imaged, wherein first light distribution is different from second light distribution.
Description
Technical field
The present invention relates to a kind of light emitting devices for motor vehicle searchlight, comprising: has the reflector for reflecting total face, uses
In at least partly reflected light on the optical axis direction of reflector；The first and second light for light shining on reflector
Source, wherein the first and second light sources are at least separated from each other on the direction perpendicular to reflector optical axis, wherein reflector it is anti-
Firing association face has multiple the first reflecting part facets towards first light source, and the first reflecting part facet is arranged to the first smooth function
At least the light irradiated by first light source is imaged in the form of the first light distribution, wherein the total face of the reflection of reflector has more
A the second reflecting part facet towards second light source, the second reflecting part facet are arranged to the second light distribution of the second smooth function
The light irradiated by second light source is imaged in form.
In addition, the present invention relates to the vehicle projectors with light emitting device according to the present invention and having according to the present invention
Light emitting device and/or vehicle according to the invention searchlight motor vehicle.
Background technique
The lighting device of aforementioned type is for example by searchlight it is known that before two of them light source is fastened on reflector arrangement
Face, wherein reflector arrangement has the different zones for being arranged for realizing different light functions.Therefore for example known searchlighting
Lamp, wherein close to sources and distance light source are fastened on before single-piece reflector arrangement, wherein reflector arrangement is in order to generate two kinds
The distribution of different light distributions, i.e. dipped beam and distance light distribution, and different reflector region there are two having.In above-mentioned apparatus especially
Importantly, avoiding the crosstalk from dipped beam to distance light, this can be realized by corresponding design measure.For realizing not sharing the same light
The single reflector region of distribution be spatially separating and the limitation in terms of structure separation leads to the structure size of light emitting device, by
This also results in limitation in its design.
Summary of the invention
Therefore, the task of the present invention is a kind of light emitting device is provided, the light emitting device can be in its shape very big
It is freely designed in degree and is suitable for generating at least two mutually different light distributions.
This task is solved using the light emitting device of aforementioned type, wherein according to the present invention, the reflection of reflector is total
Face is at least partly made of the first and second reflecting part facets of alternately arrangement alongside one another, wherein the first and second light sources
In region before reflector so be arranged on, so that the light of its radiation is at least partly irradiated against the optical axis direction of reflector
Onto reflector.Light emitting device according to the present invention not any specific limitation in terms of by its structure size.By by the first He
The combined reflected total face of second reflecting part facet also can by means of single reflector and be associated with reflector light source realize two
A or more light function.Compared with conventional reflector, the total face of reflection can be significantly increased herein.In addition, especially for
In the case where vehicle projectors, the improved cooling of light source is realized in reflector arranged in front light source, this is because reflecting
Region before device can for example be closed using covering plate, and the heat issued by light source can be output to surrounding by shutter
Environment.
Other reflecting part facet can also be disposed between the first and second reflecting part facets or vice versa.Statement
" optical axis of reflector " is interpreted as the optical axis being orientated along the main radiation direction of reflector.First and second smooth functions are not necessarily
It must be different from each other.However, different from each other by light distribution caused by corresponding light source and the reflecting part facet attached.
This shall mean that, such as the first light distribution and the second light distribution are able to a part of construction total light distribution.So for example can
It is enough to consider, the first light distribution and second light distribution obtain jointly dipped beam be distributed the-the first light distribution and the second light distribution thus this
Body represents the part light distribution occupied.
Unless otherwise stated, " multiple " expressions of statement in the context of the disclosure are such multiple, it is described more
A at least two, and it can be two, three, four or more, especially six or are more than by eight, ten, 12
12.According to the disclosure, technical staff can select the quantity of respective element according to application purpose.Stating " reflecting total face " is
The entire surface of digital reflex device, the face are arranged to the light of reflection source.
More particularly to provide, the first smooth function and the second smooth function are selected from the following group: being gone in the daytime
Car light, position lamp, side-marker lamp, driving direction signal lamp, dipped headlight, cornering lamp, high beam, static turn signal or cornering lamp.
Technical staff knows these light functions, wherein the light distribution of subordinate is defined in related criterion and standard.Such as at this
In refer to United Nations Economic Commission for Europe (UN/ECE) No. 123 regulations-approval motor vehicle adaptive forward lighting systems (AFS)
No. 48 regulations-approval of unified condition and United Nations Economic Commission for Europe (UN/ECE) and illumination and optical signal device peace
Fill the unified condition of related vehicle.It additionally is able to provide, the first and second smooth function is different from each other.Wherein, in principle
It can be considered that being previously mentioned all arrangements or combination of function.In particular, following combination can particularly advantageously be implemented: driving a vehicle in the daytime
Lamp/position lamp；Day driving lamp/side-marker lamp；Daytime running lamps/blinker or flash lamp；Blinker/position
Lamp；Blinker/side-marker lamp；Dipped headlight/cornering lamp；High beam/cornering lamp；Dipped headlight/static state turn signal；Static state turning
Left/static cornering lamp of lamp is right；Also or rectangular segmentation light emitting device single segment specific combination, wherein by light emitting device
The light distribution of generation is made of the single segment that can for example combine as follows: high beam/dipped headlight matrix section a/ high beam/dipped beam
Lamp matrix section.
It additionally is able to provide, the first and/or second reflective portion face has micro-structure, and the micro-structure, which is arranged to, makes light
(selecting from light distribution mentioned above) is deflected towards third light distribution.
It can specify that the total reflection face only by alongside one another in particularly advantageous and simple embodiment of the invention
The first and second reflecting part facets composition of arrangement.
It can also alternatively provide, the total reflection face has at least one third reflecting part facet, preferably multiple thirds
Reflecting part facet, to generate another light distribution.
More particularly to provide, at least one described third reflecting part facet is towards described first and/or second light source.
Also it can provide, the light emitting device has third light source, and the third reflecting part facet is towards described the
Three light sources.
To this addedly or alternatively it can be stated that the light emitting device has optical sensor for checking in the light source
At least one light source light function, wherein pass through the light distribution caused by least one described third reflecting part facet
It is so constructed and the optical sensor is arranged such that through institute caused by least one described third reflecting surface
Light distribution is stated to be irradiated on the optical sensor.The optical sensor can for example be connect with assessment unit, the assessment unit
It monitors the state of light emitting device, and takes adequate measures when being inferred to malfunction, such as error indication.
In order to realize that third light function can provide, by described caused by least one described third reflecting part facet
Light distribution is the light distribution for the light function of selecting from the following group: daytime running lamps, position lamp, side-marker lamp, driving direction letter
Signal lamp, dipped headlight, cornering lamp, high beam, static turn signal, cornering lamp.
It can be stated that each reflecting part facet in especially appropriate structural scheme of the invention, especially first and
Two reflective portion noodles banded structures and arrangement alongside one another, wherein the band of arrangement alongside one another is connected with each other.Band
Connection can directly carry out mutually bringing into also or by the item of other therebetween bands, such as third reflecting part facet
Row.
The crosstalk of the light issued in order to prevent by single source it can be stated that first light source under the first illumination angle and the
Two light sources are irradiated in corresponding reflecting part facet under the second illumination angle, wherein each reflective portion face has inclination angle, institute
State the corresponding illumination angle that inclination angle is more than unallocated light source, wherein the angle is related with the optical axis of the reflector.Here,
Light source can be for example arranged in the angle between 20 ° and 75 ° relative to optical axis.Arrangement transverse to the optical axis of reflector allows
Short structure type of the light emitting device on the direction of the optical axis of reflector.
It additionally is able to provide, the light emitting device has imaging optical device, and the imaging optical device is arranged described
Behind reflector, at least part of the light reflected by the reflector to be imaged.Imaging optical device can be designed as
Projecting lens such as pillow Optical devices (Kissenoptik).
It additionally is able to provide, the imaging optical device has for pointedly influencing to pass through the imaging optical device
The micro-structure of the light distribution of radiation.Statement " micro-structure " is understood to protrusion or recess portion at the surface of respective optical component,
Size is at most a few tenths of millimeter, and the protrusion or recess portion are suitable for the light for influencing to be radiated by respective optical element
Figure.Therefore micro-structure can for example be configured to pointedly deflect light along specific direction.Alternatively, these micro-structures
It may be arranged as generating diffusion radiation.
It can also provide, the reflector is configured to individual optical component.
It can also alternatively provide, the reflector and light guide one-piece construction, by the way that reflector construction exists
The light guide includes the imaging optical device at the end section of the reflected light of the light guide.Therefore this embodiment is special
It is compact, wherein can largely be prevented about imaging optical device by the embodiment of integral type through thermal expansion or
The location of mistake of reflector caused by mechanical oscillation.
Herein can particularly advantageously, each reflecting part facet, especially the first and second reflecting part facets are constructed
For the face of the strip-form of the arrangement alongside one another at the surface of end section, wherein the first and second reflecting parts facet is each other
Inclination.It is incident on the angle in corresponding reflecting part facet depending on light, reflecting part facet may relative to the inclination of incident light
It has been enough to realize total reflection.It can advantageous be exactly band as long as face is not enough to realize total reflection relative to the inclination of light source
The face of shape is coated with the layer of reflected light.Particularly, corresponding reflecting part facet can be tilted so, so that only specific reflective portion
Face corresponding light source " visible " or can be illuminated.Therefore such as the first reflecting part facet can be arranged so that the
Two reflecting part facets are from the shade that the visual angle of first light source is located at the first reflecting part facet.Equally, from the visual angle of second light source
From the point of view of, the first reflecting part facet can also be located in the shade of the first reflecting part facet.
It additionally is able to provide, each reflecting part facet, especially the first and second reflective portion faces have micro-structure, are used for
Pointedly influence the light distribution by the reflective portion surface radiation.
In order to light is particularly effectively irradiated on reflector or corresponding reflecting part facet on, can provide, at least exist
Be respectively disposed with collimator element between the reflector and first and second light source, for by light towards the reflector
Direction aggregation.Collimator element is configured to the light from radiation of light source towards the direction of reflector, especially towards corresponding
The direction of reflecting part facet be directed toward in parallel.
More particularly to advantageously, at least one light source, preferably all light sources in light source include at least one LED.It is right
Addedly or alternatively any other light source, such as laser light source, halogen light source, xenon light source etc. can be naturally also arranged in this.
Another aspect of the present invention relates to a kind of vehicle projectors, especially motor vehicle searchlight, including according to the present invention
Light emitting device and covering plate, wherein the light emitting device arranged so that the back side of the light source towards the covering
Plate.It is possible thereby to cool down light source, particularly effectively so as to improve its performance and/or service life.Further, it is possible to use light source
Waste heat is used to carry out deicing or defrosting to covering plate.
Another aspect of the present invention relates to one kind to have light emitting device according to the present invention and/or vehicle according to the invention
The vehicle of searchlight.
Detailed description of the invention
Next the present invention is more specifically explained according to embodiment that is exemplary and not limiting, the embodiment
It is elucidated in the accompanying drawings.Which show
Fig. 1 is the schematic diagram of the first embodiment of light emitting device 1 according to the present invention,
Fig. 1 a shows the detailed view of the micro-structure of the light emitting device according to Fig. 1,
Fig. 2 shows the schematic diagram according to the modification of the first embodiment of Fig. 1,
Fig. 3 shows the second embodiment of light emitting device according to the present invention,
Fig. 3 a shows the detailed view of the micro-structure of the light emitting device according to Fig. 3,
Fig. 4 shows the cross-sectional view of the vehicle according to the invention searchlight with light emitting device according to the present invention, and
Fig. 5 shows the detailed view of the rays of the reflector of light emitting device according to the present invention.
In the following figures, unless otherwise stated, identical appended drawing reference indicates identical feature.
Specific embodiment
Fig. 1 shows the schematic diagram of the first embodiment of light emitting device 1 according to the present invention.Light emitting device 1 includes anti-
Emitter 2, reflector have the total face 2a of reflection for reflected light, wherein the optical axis in reflector 2 at least partly occurs for reflection
On the direction of x, in this example, reflects and be overlapped with the axis x of the cartesian coordinate system with other axis y and z for orientation of turning right.
In addition, light emitting device includes first light source 3' and second light source 3'', for light shining reflector 2, wherein described
First and second light sources at least on the direction perpendicular to the optical axis x of reflector 2-in the case where current therefore in axis y and/or
On the direction of z-be spaced each other.
The total face 2a of reflection of the reflector 2 has multiple the first reflecting part facet 2a' towards the first light source 3',
The first reflecting part facet is arranged in the form of at least the first light distribution of the first smooth function to by the first light source 3'
The light of irradiation is imaged.The total face 2a of reflection of the reflector 2 also has multiple second towards the second light source 3'' anti-
Part face 2a'' is penetrated, the second reflecting part facet is arranged in the form of the second light distribution of the second smooth function to by described
The light of two light source 3'' irradiation is imaged, wherein first light distribution is different from second light distribution.As can from 1
As, the total face 2a of reflection of reflector 2 is at least partly by the first and second reflective portions of alternately arrangement alongside one another
Face 2a' and 2a'' composition, wherein the region of 2 front of the reflector so be arranged on the first and second light sources 3' and 3''
In, at least partly against the positive direction of the optical axis x of reflector 2, (positive direction is using hair to the light of radiation in vehicle projectors
It is consistent with the direction of advance of vehicle in the case where electro-optical device) it is irradiated on reflector 2.
The arrangement of light source 3' and 3'' and reflecting part facet 2a' and 2a'' are designed in this way, so that for example may be implemented following
A corresponding light function in light function: daytime running lamps, position lamp, side-marker lamp, flash lamp, dipped headlight, cornering lamp, distance light
Lamp, static turn signal etc..Total reflection face 2a is only by the of arrangement banded structure alongside one another in the embodiment according to Fig. 1
One and second reflecting surface 2a' or the 2a'' combination, wherein adjacent reflecting surface is adjacent to each other and is connected with each other.In order to realize hair
(short) structure as compact as possible of electro-optical device in the direction of the x axis, can provide, light source 3' and 3'' is arranged transverse to optical axis x.
Such as the light source can be arranged in the angle between 20 ° and 75 ° relative to optical axis.
Imaging optical device 4 is also shown in Fig. 1, the imaging optical device is designed as projecting lens in this example
And it is arranged in behind reflector 2, such as to pass through exemplary light beam LS for the light reflected by reflector 2 to be imaged
It is shown.Reflector 2 is configured to individual optical component in the embodiment according to Fig. 1.
Fig. 1 a shows the interception part of the first reflecting part facet 2a' in detailed signal.Wherein it is seen that, it is described anti-
Penetrating part face 2a' has for pointedly influencing the micro-structure 5 by the reflecting part facet 2a' light distribution radiated.Similarly
Or alternatively, such micro-structure 5 can be arranged in other reflecting part facets or on imaging optical device 4.
Fig. 2 shows the schematic diagrames according to the modification of the first embodiment of Fig. 1.Wherein shown by means of single light beam
Gone out first and/or second light source 3' or 3'' how single light beam to be radiated by reflector 2 towards optical sensor 8.
Fig. 3 shows the second embodiment of light emitting device 1 according to the present invention, wherein the reflector 2 and light guide
6 one-piece constructions, by constructing the reflector 2 at the section 6a of the end of the reflected light of the light guide 6, the light guide packet
Include the imaging optical device 4.Equally in said embodiment, the first and second reflecting part facet 2a' or 2a'' such as structure
Make the face of the strip-form for the arrangement alongside one another at the surface of end section 6a, wherein the first and second reflecting parts facet
2a' or 2a'' incline towards each other.By the face, relative to light source 3' and 3''(, wherein light source is preferably LED) inclination, light may
It is totally reflected at reflecting part facet.If inclination is not enough to this, reflecting part facet can also be coated with reflected light
Layer, the layer can for example be applied by vapor deposition.In addition, imaging optical device 4 can have micro-structure 5, for being directed to
The light distribution radiated by imaging optical device 4 is influenced to property, the light distribution is shown as the details of Fig. 3 in fig. 3 a.With each other
The band being arranged in juxtaposition is that the design of the reflecting part facet of form is an illustrative variations of its structural scheme.Together
Sample, also it can be considered that other variant schemes such as step structure.
In addition, collimator element 7 is shown in FIG. 3, it is arranged in reflector 2 and the first and second light source 3' or 3''
Between, for light to be assembled towards the direction of reflector 2.Collimator element 7 is it is so structured that individual component.It is alternative to this
Ground, collimator element 7 can also be integrally designed with optical conductor 6.By using collimator element 7 it is ensured that, by light source
The light of sending with can preset angle be incident in reflector 2 or reflecting part facet, thus can for example be ensured that, from light
It is incident on all light on reflector 2 and is totally reflected at inclined surface in source.
Imaging optical device 4 can for example be configured to lens but also can be structured as so-called " pillow Optical devices ",
The imaging optical device by pillow-like arrangement alongside one another multiple structure compositions.
Using the light emitting device 1 according to illustrated embodiment, can easily be realized by using unique reflector different
Light function.Therefore, first light source for example can undertake low-beam function and second light source undertakes turning function.Such as refer to
Lower combination: where combination to be utilized slash "/" connection, it is different to each other by branch "；" it is separated from each other: it drives a vehicle in the daytime
Lamp/position lamp；Daytime running lamps/side-marker lamp；Daytime running lamps/flash lamp；Flash lamp/position lamp；Flash lamp/side mark
Lamp；Dipped headlight/cornering lamp；High beam/cornering lamp；Dipped headlight/static state turn signal；Left/static turn signal of static turn signal is right；Far
Light lamp/dipped headlight matrix section a/ high beam/dipped headlight matrix section b.
Fig. 4 shows the cross-sectional view of the vehicle according to the invention searchlight with light emitting device 1 according to the present invention.Light
Source 3' and 3'' are arranged on herein near the covering plate 9 in the front area of vehicle projectors.Thus the light source (for example,
Laser or LED light source) mainly for the export loss power of covering plate 9, it thus can effectively guide heat outward first, and
Next can be used for offsetting the atomization or icing of covering plate, and can be omitted other cooling provisions of such as ventilator.
Fig. 5 shows the detailed view of the rays of the reflector 2 of light emitting device 1 according to the present invention.In order to prevent by list
The crosstalk of the light that a light source 3' and 3'' are issued, it is specified that, the first light source 3' is lower in the first illumination angle α ' and described the
Two light source 3'' are irradiated on corresponding reflecting part facet 2a' or 2a'' at the second illumination angle α ' ', wherein each reflection
Part face 2a' or 2a'' has angle of inclination beta ' or β ' ', and the inclination angle is more than the corresponding photograph of the light source 3'' or 3' that do not attach
Firing angle α ' or α ' ', wherein the angle is related with the optical axis of the reflector.In other words, it means that the first reflective portion
Face 2a' is attached to first light source 3', wherein due to the different each reflecting parts in the mutual spatial position each reflecting part facet 2a'
Facet 2a' relative to first light source 3' occupy different angle [alpha]s ' (therefore each reflecting part facet 2a' is attached to different photographs
Firing angle α ' and angle of inclination beta '-for preferably general view, these angles are equipped with attached drawing mark only with respect to single reflecting part facet 2a'
Note).Each reflecting part facet 2a' so inclination herein by second light source 3'' so that it can not be irradiated.For example, the quilt in Fig. 5
Illumination angle α ' ' of the first reflecting part facet 2a' than second light source 3'' for having attached appended drawing reference β ' is smaller tilted.Thus lead to
Cross the irradiation that second light source 3'' prevents relevant first reflecting part facet 2a'.Same case is similarly applicable for the second reflection
Part face 2a''.
In view of this introduction, technical staff can reach others of the invention in the case where no creative behavior
Unshowned embodiment.Therefore the present invention is not limited to shown embodiment.The single aspect of the present invention or embodiment
Also it can pay attention to and be combined with each other.It is important that the design that the present invention is based on, the design is existed by technical staff
Implemented in a manner of diversified when understanding this illustrate and however itself is still maintained.
Claims (22)
1. a kind of light emitting device (1) for motor vehicle searchlight, comprising:
Reflector (2) has and reflects total face (2a), the side for the optical axis (x) at least partially along the reflector (2)
To reflected light,
For light shining the first and second light sources (3', 3'') on the reflector (2), wherein described first and the
Two light sources (3', 3'') are at least separated from each other on the direction of the optical axis (x) perpendicular to the reflector (2),
Wherein, the total face of reflection (2a) of the reflector (2) has multiple the first reflecting parts towards the first light source (3')
Facet (2a'), the first reflecting part facet are arranged in the form of at least the first light distribution of the first smooth function to by described
(3') light that first light source is irradiated is imaged,
Wherein, the total face of reflection (2a) of the reflector (2) has multiple the second reflecting parts towards the second light source (3'')
Facet (2a''), the second reflecting part facet are arranged in the form of the second light distribution of the second smooth function to by described second
The light of light source (3'') irradiation is imaged, wherein and first light distribution is different from second light distribution,
It is characterized in that,
The total face of reflection (2a) of (2) of the reflector is at least partly by the first and second reflections of alternately arrangement alongside one another
Part face (2a', 2a'') composition,
Wherein, in the region before first and second light source (3', the 3'') reflector (2) so be arranged on, so that its
The light of radiation is at least partly irradiated on the reflector (2) against the direction of the optical axis (x) of the reflector (2).
2. light emitting device (1) according to claim 1, wherein the first smooth function and the second smooth function be from
With what is selected in the following group:
Daytime running lamps, position lamp, side-marker lamp, flash lamp, dipped headlight, cornering lamp, high beam, static turn signal, turning
Lamp,
Wherein, the described first and second smooth functions are different from each other.
3. light emitting device (1) according to claim 1 or 2, wherein the described first and/or second reflecting part facet (2a',
2a'') there is micro-structure, the micro-structure is configured to deflect light towards third light distribution.
4. light emitting device (1) according to any one of claim 1 to 3, wherein the total reflection face (2a) is only by each other
The first and second reflecting part facets (2a', the 2a'') composition being arranged in juxtaposition.
5. light emitting device (1) according to claim 1 or 3, wherein the total reflection face (2a) has at least one third
Reflecting part facet, preferably multiple third reflecting part facets, to generate another light distribution.
6. light emitting device (5) according to claim 5, wherein at least one described third reflecting part facet is towards described
First and/or second light source (3', 3'').
7. light emitting device (5) according to claim 5 or 6, wherein the light emitting device (1) has third light source, and
The third reflecting part facet is towards the third light source.
8. light emitting device (5) according to any one of claims 5 to 7, wherein the light emitting device (1) passes with light
Sensor is used to check the light function of at least one light source in the light source, wherein passes through at least one described third reflecting part
Light distribution caused by facet is so constructed and the optical sensor (8) is arranged such that by described at least one
Light distribution caused by a third reflecting surface is irradiated on the optical sensor (8).
9. the light emitting device according to any one of claim 5 to 8 (5), wherein reflected by least one described third
Light distribution caused by the face of part is the light distribution for the light function of selecting from the following group: daytime running lamps, position lamp, side mark
Lamp, driving direction signal lamp, dipped headlight, cornering lamp, high beam, static turn signal, cornering lamp.
10. light emitting device (1) according to any one of the preceding claims, wherein each reflecting part facet, especially
One and second reflecting part facet (2a', 2a'') banded structure and arrangement alongside one another, wherein the item of arrangement alongside one another
Band is connected with each other.
11. light emitting device (1) according to any one of the preceding claims, wherein the first light source is (3') first
Under illumination angle (α ') and the second light source (3'') is irradiated to corresponding reflective portion at the second illumination angle (α ' ')
On face (2a', 2a''), wherein each reflective portion face has inclination angle (β ', β ' '), and the inclination angle is more than unappropriated light
The corresponding illumination angle (α ', α ' ') in source (3'', 3'), wherein the angle (α ', α ' ', β ', β ' ') and the reflector (2)
Optical axis (x) it is related.
12. light emitting device (1) according to any one of the preceding claims, wherein the light emitting device (1) has imaging
Optical devices (4), the imaging optical device are arranged behind the reflector (2), for being imaged by the reflector (2)
At least part of the light of reflection.
13. light emitting device (12) according to claim 12, wherein the imaging optical device (4) has for being directed to
Property influence by the imaging optical device (4) radiate light distribution micro-structure (5).
14. light emitting device (1) according to any one of the preceding claims, wherein the reflector (2) is configured to list
Only optical component.
15. light emitting device (12) according to claim 12 or 13, wherein the reflector (2) and light guide (6) one
Formula construction, by constructing the reflector (2) at the end of the reflected light of the light guide (6) section (6a), the light guide
Including the imaging optical device (4).
16. light emitting device (15) according to claim 15, wherein each reflecting part facet, especially first and second
Reflecting part facet (2a', 2a'') is configured to the face of the strip-form of arrangement alongside one another at the surface of the end section (6a),
Wherein, the first and second reflecting parts facet (2a', 2a'') inclines towards each other.
17. light emitting device (16) according to claim 16, wherein the face of the strip-form is coated with the layer of reflected light.
18. light emitting device (1) according to any one of the preceding claims, wherein each reflecting part facet, especially
First and second reflecting part facets (2a', 2a'') have micro-structure (5), pass through the reflective portion for pointedly influencing
The light distribution of face (2a', 2a ' ') radiation.
19. light emitting device (1) according to any one of the preceding claims, wherein at least in the reflector (2) and institute
State and be respectively disposed with collimator element (7) between the first and second light sources (3', 3''), for by light towards the reflector (2)
Direction aggregation.
20. light emitting device (1) according to any one of the preceding claims, wherein in the light source (3', 3'') extremely
A few light source, preferably all light sources, including at least one LED.
21. a kind of vehicle projectors, especially motor vehicle searchlight, including hair according to any one of the preceding claims
Electro-optical device (1) and covering plate (9), wherein the light emitting device (1) arranged so that the light source (3', 3'') back
Side is to the covering plate (9).
22. a kind of with according to claim 1 to light emitting device described in any one of 20 (1) and/or according to claim 21
The vehicle of the vehicle projectors.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA50689/2017 | 2017-08-18 | ||
| ATA50689/2017A AT520345B1 (en) | 2017-08-18 | 2017-08-18 | Lighting device for a motor vehicle headlight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578929A true CN109578929A (en) | 2019-04-05 |
| CN109578929B CN109578929B (en) | 2021-08-03 |
Family
ID=62951866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810941879.8A Active CN109578929B (en) | 2017-08-18 | 2018-08-17 | Lighting device for a motor vehicle headlight |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3447371B1 (en) |
| CN (1) | CN109578929B (en) |
| AT (1) | AT520345B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7351075B2 (en) * | 2018-05-22 | 2023-09-27 | 市光工業株式会社 | Vehicle lights |
| DE102019123936A1 (en) * | 2019-09-06 | 2021-03-11 | Automotive Lighting Reutlingen Gmbh | Lighting device and projection module for such a lighting device |
| DE102020102291A1 (en) | 2020-01-30 | 2021-08-05 | HELLA GmbH & Co. KGaA | Lighting device for vehicles |
| CN117795245A (en) * | 2021-08-16 | 2024-03-29 | 路特斯技术创新中心有限公司 | Turn signal light device for a vehicle projection module and vehicle light system comprising at least one such turn signal light device |
| CN117628429A (en) * | 2022-08-12 | 2024-03-01 | 巨铠精密工业股份有限公司 | Multi-light source lighting module and automobile lamp thereof |
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| DE102010056312A1 (en) * | 2010-12-27 | 2012-06-28 | Automotive Lighting Reutlingen Gmbh | Motor vehicle head lamp has two light sources for emitting light and reflector for bundling light for generating two different light distributions, where reflector has faceted reflecting surface |
| US20120201040A1 (en) * | 2011-02-09 | 2012-08-09 | Koito Manufacturing Co., Ltd. | Automotive headlamp forming multiple light distribution patterns with a single lamp |
| DE102013202957A1 (en) * | 2013-02-22 | 2014-08-28 | Automotive Lighting Reutlingen Gmbh | Illumination device i.e. headlight, for motor vehicle, has facets and light sources arranged in such manner such that incident lights of light sources on facets are reflected in predetermined angular ranges of signal light distribution |
| JP2015174551A (en) * | 2014-03-14 | 2015-10-05 | トヨタ自動車株式会社 | Vehicle headlight system |
| CN105143757A (en) * | 2013-04-15 | 2015-12-09 | 株式会社小糸制作所 | Lamp for a vehicle |
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|---|---|---|---|---|
| US4929866A (en) * | 1987-11-17 | 1990-05-29 | Mitsubishi Cable Industries, Ltd. | Light emitting diode lamp |
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2017
- 2017-08-18 AT ATA50689/2017A patent/AT520345B1/en not_active IP Right Cessation
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- 2018-07-12 EP EP18183048.0A patent/EP3447371B1/en active Active
- 2018-08-17 CN CN201810941879.8A patent/CN109578929B/en active Active
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| EP0942225A3 (en) * | 1998-03-13 | 2002-01-23 | Stanley Electric Co., Ltd. | Vehicle signal lighting unit |
| EP0974485A2 (en) * | 1998-07-24 | 2000-01-26 | Stanley Electric Co., Ltd. | Signal lamp for vehicle |
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| CN102460002A (en) * | 2009-04-21 | 2012-05-16 | 法雷奥照明公司 | Lighting module and device for a vehicle with improved road function |
| EP2431657A2 (en) * | 2010-09-17 | 2012-03-21 | Automotive Lighting Reutlingen GmbH | Reflector module of a motor vehicle headlamp |
| DE102010056312A1 (en) * | 2010-12-27 | 2012-06-28 | Automotive Lighting Reutlingen Gmbh | Motor vehicle head lamp has two light sources for emitting light and reflector for bundling light for generating two different light distributions, where reflector has faceted reflecting surface |
| US20120201040A1 (en) * | 2011-02-09 | 2012-08-09 | Koito Manufacturing Co., Ltd. | Automotive headlamp forming multiple light distribution patterns with a single lamp |
| DE102013202957A1 (en) * | 2013-02-22 | 2014-08-28 | Automotive Lighting Reutlingen Gmbh | Illumination device i.e. headlight, for motor vehicle, has facets and light sources arranged in such manner such that incident lights of light sources on facets are reflected in predetermined angular ranges of signal light distribution |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3447371B1 (en) | 2022-11-16 |
| EP3447371A1 (en) | 2019-02-27 |
| AT520345A1 (en) | 2019-03-15 |
| AT520345B1 (en) | 2019-06-15 |
| CN109578929B (en) | 2021-08-03 |
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