CN106461178A - Headlight module - Google Patents
Headlight module Download PDFInfo
- Publication number
- CN106461178A CN106461178A CN201580018546.2A CN201580018546A CN106461178A CN 106461178 A CN106461178 A CN 106461178A CN 201580018546 A CN201580018546 A CN 201580018546A CN 106461178 A CN106461178 A CN 106461178A
- Authority
- CN
- China
- Prior art keywords
- light
- luminescent substance
- recess
- lamp module
- searchlighting lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F21S41/10—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
- F21S41/16—Laser 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
- 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
- F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
-
- 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
- F21S41/67—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors
- F21S41/675—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on reflectors by moving reflectors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Disclosed is a headlight module (10) comprising a luminophore (20) which can be excited using electromagnetic radiation so as to emit light, a radiation source (12) for exciting the at least one luminophore (20), and a supporting device (18) for the luminophore (20). Said headlight module is characterized in that a surface (19) of the supporting device (18) has a structure comprising depressions (17) and in that the luminophore (20) is placed in the depressions (17) on the surface (19) of the supporting device (18). The invention allows for higher spatial resolution of the light emitted by a headlight as well as for an increased light yield.
Description
Technical field
The present invention relates to a kind of searchlight of the type according to independent patent claim.
Background technology
Achieve light distribution the picture such as dipped headlights, distance light of multiple fixing regulations from the searchlight of automotive field
Selection between lamp and fog lamp.So-called adaptive Characteristic of Search Light System is propagated more and more, described adaptive spy
Illuminator system extends selecting and achieving for example dynamic steering indicating light, highway lamp, city lamp and evil to light distribution
Bad sky gas lamp.The selection here of light distribution is able to rely on condition and to be implemented by automotive system.
Development further in car lighting field shows as so-called active searchlight.Described active searchlight is not
It is confined to prespecified light distribution, but arbitrary light in the space of vehicle front can be realized similar to scialyscope and divide
Cloth.Using such system for example can make itself distance light cone within come head-on and hidden in the vehicle of traveling ahead
Not yet, the high beam of also referred to as so-called anti-glare, or possible dangerous matter sources are highlighted for driver by direct lighting.
Such active searchlight can substantially be realized with two kinds of principle.In subtracting system, all products
The matrix conduction by optical active element such as LCD, LCoS, DMD for the raw light stream.Bright region is passed through with allowing light stream
Mode is producing.For dark region, light stream is absorbed or example by means of optical active element such as LCD or LCoS
As deflected towards the direction of absorber by means of DMD.In different components, in subtracting system, spatially carry out the generation of light
And the variable distribution of light.Due to this reason, the power density of light source is without limitation on the resolution of system.Therefore, it is possible to reality
Now there is the system of relatively high-resolution minor structure.Depend on principle, compared with addition system, in subtracting system
Light loss is higher.
Addition system is illuminated to scene by the matrix arrangements of light source, such as LED, and wherein each light source being capable of root
To be switched on and off according to needing.That is, always using the light quantity of all generations in preferable addition system.Light source matrix
Necessary radiating typically limit physical dimension, high-high brightness and/or the resolution that can reach in such a system.
By the light generation in the active Characteristic of Search Light System of addition, spatially separated one kind can with light distribution
Row scheme is, using the luminescent substance that can be excited using electromagnetic radiation, such as laser emission.Described luminescent substance here profit
It is scanned with the radiation of excitability and be imaged by means of projection optical device afterwards.This principle is for example in DE 10
Described in 2010 028 949 A1.
Content of the invention
Provided the advantage that according to the present invention, the feature with independent patent claim searchlighting lamp module：Carry
The high light by the radiation of described searchlighting lamp module resolution capability spatially, improve contrast and improve product light rate.
Thus, in order to obtain corresponding brightness on desired illumination target position, compared with the solution according to prior art
Need less energy supply.Additionally, system produces less used heat such that it is able to reduce the expense for cooling down described system
With.
This will be realized using following such a searchlighting lamp modules：I.e. include can be by means of electricity for described searchlighting lamp module
Magnetic radiation excites luminescent substance for light radiation, for exciting the radiation source of at least one luminescent substance and being used for described
The supporting arrangement of stimulative substance, the surface of wherein said supporting arrangement has structure and wherein said luminescent substance with recess
In the recess on the surface being arranged in described supporting arrangement.Described recess is used as reflector and sharp poly- is sent by described luminescent substance
Light.
Advantageously, can be used in, in automotive field, there especially using according to the searchlighting lamp module of the present invention
Make the active ingredient travelling lamp, as described in background technology section, namely for vehicle projectors
In.Other favourable use feasible programs are e.g. used for stage illumination, lighting, operating position illumination, house illumination and other searchlighting
Lamp.
Advantageously, the recess of luminescent substance supporting arrangement is respectively provided with a reflecting surface, and described luminescent substance is laid
To on described reflecting surface.Thus, reduce the part of light produced by luminescent substance by the absorption of described supporting arrangement simultaneously
And thus improve the used heat producing light rate and reducing system, otherwise described used heat may must be arranged by separate cooling provision
Go out.Advantageously, the reflecting surface of recess can be formed by introduction into the reflecting layer in described recess.Side as an alternative
Case, in order to form the reflecting surface of described recess also it is contemplated that polishing.
Advantageously, the recess comprising described luminescent substance on the surface of described supporting arrangement has the shape of ellipse.Should
Shape be particularly well-suited to sharp poly- by luminescent substance diffusion, i.e. misalignment eradiation light.
Brief description
Embodiments of the invention are shown in the drawings and are explained further below.Wherein：
Fig. 1 show the searchlighting lamp module according to prior art the schematic diagram in order to understand the main part of the present invention and
Fig. 2 shows the schematic diagram of the main part for present invention evil of the searchlighting lamp module according to the present invention.
Specific embodiment
Show in a schematic in FIG according to prior art with as detailed for example in DE 10 2,010 028 949 A1
The part main in order to understand the present invention of the searchlighting lamp module 10 carefully describing.
Described searchlighting lamp module 10 includes radiation source 12, and described radiation source is configured to send electromagnetic radiation, is working as cause
Send laser under condition, send blue laser in the current situation.Described radiation source 12 can be for example laser diode.Described spoke
Penetrate source 12 and send radiation, be aligned in this laser and gather, namely sent in the form of laser beam with sharp.Described radiation source 12
To beam steering apparatus 14, described beam steering apparatus include illuminator, preferably micro- mirror apparatus to radiation strikes.As with two
As double-head arrow represents, micro- illuminator is configured as the reaction to electric control device and can put along two spaces axis
The micro- illuminator turning.Therefore, the laser beam of shock is able to rely on the electric control device of micro- illuminator towards desired side
To deflection.Replacing uniquely can be along micro- illuminator of two spaces axis rotation it is also possible to use two micro- illuminators, institute
Stating two micro- illuminators can be respectively along a direction in space rotation.If not needing vertical resolution, then a list
The illuminator of axle is also feasible.
The radiation strikes being deflected by beam steering apparatus 14 of described radiation source 12 to can by means of electromagnetic radiation,
This is, for example, blue laser come, on the luminescent substance 20 to excite, described luminescent substance is arranged on supporting arrangement 18.Described supporting
Device 18 preferably by can highly thermally conductive material for example suitably pottery, as example by polycrystalline alumina ceramic（PCA）Or
It is made up of the pottery that sapphire is made.Described beam steering apparatus 14 achieve and turn beam of radiation produced by radiation source 12
To on the arbitrfary point on the surface to described luminescent substance 20.The manipulation not separately shown in figure of described beam steering apparatus 14
Device is configured to deflect in the following manner the radiation being sent by described radiation source 12：Successively excite described in time
The zones of different of luminescent substance 20.
Similar to imaging line by line for example in the image reproducer of television set, wherein human eye passes through on the suitable time and space
On manipulation model see plane picture, also construct the manipulation model of described beam steering apparatus 14 according to the present invention, thus
Because the interaction in human eye resolution capability in time and the response time of described luminescent substance 20 is so that human eye sees institute
That states searchlighting lamp module stablizes lasting lighting, without flicker or similar phenomenon.
Due to exciting by means of electromagnetic radiation 13, described luminescent substance sends light 21.This light send here in root
According in the solution of prior art not by sharp poly- but diffusion.Searchlighting lamp module is created by suitable steering pattern
Desired light distribution and such as motor vehicles the searchlight with described searchlighting lamp module desired light distribution.
Construction with regard to described searchlighting lamp module and functional mode and suitable luminescent substance, see DE 10
2010 028 949 A1, its disclosure related to this is included in Current patents application documents.
Show in a schematic the portion main for the purpose of the present invention of the searchlighting lamp module 10 according to the present invention in fig. 2
Part.Contrary with the searchlighting lamp module 10 according to Fig. 1, the supporting arrangement 18 of the searchlighting lamp module 10 according to the present invention has structuring
Surface 19, described structurized surface includes recess 17.This structure can be micro structure in favourable scheme.
The accurate shape of each micro- reflector for example can be determined by means of optical analog.Should so buy described micro-
Reflector：Make described micro- reflector by the optical registration being radiated.As illustrated in Figure 2, described micro- reflector master
Front to be applied to excites.Substitute described micro- reflector, could be used that and be applied to the micro-optical device that the back side excites, such as also in DE
As described in 10 2,010 028 949 A1.
Described micro structure should be more than the wavelength of used laser（450nm）And it is less than 1mm.In preferable situation
Under, physical dimension should be between 1 μm to 100 μm.
In order to manufacture described micro structure, the micro-structural feasible program of all planes is available for using in principle.But,
Promising be process for stamping, as such as micron method for stamping and nano-imprinting method.It is also contemplated that ablative method, as example
Laser ablation, adds subsequent chemically or physically polishing.
The luminescent substance 20 being capable of electromagnetism excitation is introduced in the recess 17 on the surface 19 of described supporting arrangement 18.Described
Luminescent substance 20 here is preferably located only within described recess 17.It is that laser 12 excites by excitaton source 12, here, described
Stimulative substance 20 sends diffusion, i.e. out-of-alignment light.The bottom 171 towards described recess 17 of described light or the direction of wall portion 172
The part being radiated is at least partly reflect by described bottom 171 or described wall portion 172.In order to reduce the bottom towards described recess 17
The absorption of the part of the light that the direction of portion or wall portion is radiated and thus raising reflexivity, described recess 17 has reflecting mirror
15.Described reflecting mirror can be realized by polishing described recess.As an alternative it is also possible to be preferably introduced into reflecting layer 15.
Described reflectance layer is if for example silver-colored by the metal material picture with high reflectance（Ag）Or aluminum（Al）Or the painting of insulation
Layer or by the material picture such as silicon nitride for optical maser wavelength or only have without very small amount of absorption（SiN）、
Silicon dioxide（SiO2）, titanium dioxide（TiO2）The coating heap made is made.
Can be using known method as evaporated such as thermal evaporation, electron evaporation in order to introduce or manufacture described reflecting layer
Or ion beams evaporation, physical vapor deposition（PVD）Method picture for example sprays or pulse laser deposition（PLD）, dividing from gas phase
From such as chemical gaseous phase deposition（CVD）, plasma enhanced CVD（PECVD）Or the Electrochemical separation from solution.
Described luminescent substance is embedded in properly by optically active luminescent substance powder constituent, described luminescent substance powder
Base material in.Described base material should be optically transparent in related wave-length coverage, have suitable refraction refers to
Count and have enough heat conductivities for discharging used heat.Typical base material is synthetic plastic such as polymer and poly- carbon
Acid esters, glass, silicone or the like.The mixture being made up of luminescent substance powder and base material can be hard in final timeliness
It is routed on structurized backing substrate presented in liquid, gel or paste and with described form before change.
Being reflected by described wall portion 172 and described bottom 171 and directly by described luminescent substance 20 from described recess
The light 21 that 17 are radiated projects from described recess 17.Described light has less divergence with respect to prior art.By institute
The suitable moulding stating recess sharp further can gather the light projecting from described recess 17.For this reason, described recess 17 preferably has
Oval cross section.It is favourable that this cross section has been proved for the sharp poly- light being radiated in the form of diffusion.As an alternative
Scheme is it is also possible to use the shape of micro- free shape reflector.Free shape reflector is following such a reflector：Its shape
Shape is not corresponded with the shape that can mathematically define.The free shape reflector of macroscopic view is inherently known and in multiple machines
It is applied in clear glass searchlight as primary optics on motor-car.
Other constructions with regard to the searchlighting lamp module according to the present invention and functional mode, see relevant Fig. 1 and DE 10
The explanation of the disclosure of 2010 028 949 A1.
Claims (4)
1. searchlighting lamp module（10）, it has the luminescent substance that can be excited for light radiation by means of electromagnetic radiation（20）、
For exciting at least one luminescent substance（20）Radiation source（12）, be used for described luminescent substance（20）Supporting arrangement（18）,
It is characterized in that, described supporting arrangement（18）Surface（19）Have with recess（17）Structure and described luminescent substance
（20）It is arranged in described supporting arrangement（18）Surface（19）Recess（17）In.
2. the searchlighting lamp module as described in claim 1 is it is characterised in that described recess（17）It is respectively provided with reflecting surface, institute
State luminescent substance（20）It is routed on described reflecting surface.
3. the searchlighting lamp module as described in claim 2 is it is characterised in that described recess（17）Reflecting surface by introduction into
Reflecting layer in described recess（15）To be formed.
4. the searchlighting lamp module as any one of the claims is it is characterised in that described recess（17）There is ellipse
Shape.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014206822.3A DE102014206822A1 (en) | 2014-04-09 | 2014-04-09 | headlight module |
| DE102014206822.3 | 2014-04-09 | ||
| PCT/EP2015/054824 WO2015154926A1 (en) | 2014-04-09 | 2015-03-09 | Headlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106461178A true CN106461178A (en) | 2017-02-22 |
Family
ID=52630379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580018546.2A Pending CN106461178A (en) | 2014-04-09 | 2015-03-09 | Headlight module |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3129702A1 (en) |
| CN (1) | CN106461178A (en) |
| DE (1) | DE102014206822A1 (en) |
| WO (1) | WO2015154926A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10471467B2 (en) * | 2014-07-18 | 2019-11-12 | North Inc. | Lighting arrangement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080013329A1 (en) * | 2006-06-28 | 2008-01-17 | Koito Manufacturing Co., Ltd. | Lamp for vehicle |
| CN101936505A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Fluorescence wheel and light supply apparatus, projecting apparatus |
| US20110249460A1 (en) * | 2010-04-08 | 2011-10-13 | Takuya Kushimoto | Vehicle headlight |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010028949A1 (en) | 2010-05-12 | 2011-11-17 | Osram Gesellschaft mit beschränkter Haftung | headlight module |
| DE102012112994A1 (en) * | 2012-12-21 | 2014-06-26 | Osram Opto Semiconductors Gmbh | headlamp device |
-
2014
- 2014-04-09 DE DE102014206822.3A patent/DE102014206822A1/en not_active Withdrawn
-
2015
- 2015-03-09 EP EP15708520.0A patent/EP3129702A1/en not_active Withdrawn
- 2015-03-09 WO PCT/EP2015/054824 patent/WO2015154926A1/en active Application Filing
- 2015-03-09 CN CN201580018546.2A patent/CN106461178A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080013329A1 (en) * | 2006-06-28 | 2008-01-17 | Koito Manufacturing Co., Ltd. | Lamp for vehicle |
| CN101936505A (en) * | 2009-06-30 | 2011-01-05 | 卡西欧计算机株式会社 | Fluorescence wheel and light supply apparatus, projecting apparatus |
| US20110249460A1 (en) * | 2010-04-08 | 2011-10-13 | Takuya Kushimoto | Vehicle headlight |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014206822A1 (en) | 2015-10-15 |
| WO2015154926A1 (en) | 2015-10-15 |
| EP3129702A1 (en) | 2017-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |