CN107940328A - A kind of high power laser headlamp - Google Patents
A kind of high power laser headlamp Download PDFInfo
- Publication number
- CN107940328A CN107940328A CN201711390173.9A CN201711390173A CN107940328A CN 107940328 A CN107940328 A CN 107940328A CN 201711390173 A CN201711390173 A CN 201711390173A CN 107940328 A CN107940328 A CN 107940328A
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- CN
- China
- Prior art keywords
- phosphor powder
- reflector
- powder layer
- high power
- thang
- 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.)
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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
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
- F21V29/87—Organic material, e.g. filled polymer composites; Thermo-conductive additives or coatings therefor
-
- 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
- F21V7/06—Optical design with parabolic curvature
-
- 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
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
Abstract
The invention discloses a kind of high power laser headlamp, including light source cell, wavelength conversion unit and reflector element, the reflector element is reflector, the light-emitting window of the reflector and top are oppositely arranged, the wavelength conversion unit includes at least two phosphor powder layers, each phosphor powder layer is corresponding with the focus of the reflector element, the light source cell includes multiple laser source units, the reflector is equipped with multiple thang-kng portions, and the light beam that each laser source unit is sent is projected on a phosphor powder layer after passing through a thang-kng portion.By setting multiple laser source units and phosphor powder layer, with the energy of dispersed light beam, when avoiding the need for high-power illumination, the light beam of multiple lasing light emitters projects on a phosphor powder layer so as to cause energy excessively to be concentrated and burn out phosphor powder layer at the same time, and when one of phosphor powder layer is burnt out, corresponding laser source unit can be closed, is illuminated using other laser source unit, do not interfere with and work on, adaptability is good.
Description
Technical field
The present invention relates to lighting technical field, and in particular to a kind of high power laser headlamp.
Background technology
Laser light source has the advantages that energy concentration, irradiation distance are remote, utilizes LASER Excited Fluorescence powder technology (remote fluorescence
Powder technology) point light source of super brightness can be obtained, it can be designed that the very small laser of beam divergence angle using the point light source
Searchlight.The beam divergence angle of laser searchlight can form several kilometers of irradiation distance usually within 1 °.
LASER Excited Fluorescence powder technology is to focus on laser on phosphor powder layer, forms the point light of a luminous point very little
Source, fluorescent powder are excited to produce the stimulated light of high brightness, usually excite yellow fluorescent powder, yellow light and the residue of generation by blue laser
Blue light formed white light, then by optical system collect be emitted, so as to form laser lighting lamp.Since laser energy is concentrated,
Very big heat can be produced when exposing on fluorescent powder, the larger laser light source of power ought be particularly needed or use multiple laser
During light source, it is easy to cause phosphor sheet and burns and fail, it is therefore desirable to often replaces phosphor sheet, and the power of laser lighting lamp
Also it is restricted, it is impossible to meet powerful lighting demand.
The content of the invention
The present invention provides a kind of high power laser headlamp, to solve existing in the prior art need to often replace fluorescence
Powder piece, and the power of laser lighting lamp are also restricted, it is impossible to the problem of meeting high-power illumination.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of high power laser headlamp, including light source
Unit, wavelength conversion unit and reflector element, the reflector element are reflector, and the light-emitting window of the reflector and top are opposite
Set, the wavelength conversion unit includes at least two phosphor powder layers, Jiao of each phosphor powder layer and the reflector element
Point corresponds to, and the light source cell includes multiple laser source units, and the reflector is equipped with multiple thang-kng portions, each laser
The light beam that source unit is sent is projected on a phosphor powder layer after passing through a thang-kng portion.
Further, radiator structure, the heat dissipation knot are additionally provided between the reflector element and the wavelength conversion unit
One end of structure connects the wavelength conversion unit other end and is pierced by the top of the reflector element and is connected with heat dissipation base.
Further, the radiator structure is made of graphite.
Further, the phosphor powder layer is equipped with two, along the setting symmetrical above and below of the central axes of the reflector.
Further, the laser source unit and the thang-kng portion are equipped with two, respectively with the phosphor powder layer one by one
Corresponding, the light beam that each laser source unit is sent is projected on corresponding phosphor powder layer after passing through the thang-kng portion.
Further, the wavelength conversion unit is in polyhedral structure, and fluorescence is equipped with polyhedral each face
Bisque, the laser source unit and thang-kng portion are corresponded with the phosphor powder layer, what each laser source unit was sent
Light beam is projected on a phosphor powder layer after passing through the thang-kng portion.
Further, wavelength conversion unit structure spherical in shape, the surface of the spherical structure are coated with phosphor powder layer.
Further, the control unit being connected with the laser source unit is further included.
Further, the reflector is formed by parabola rotation, and the parabolical focus is located at the reflector
On central axes.
Further, the reflector is formed by half of parabola rotation, and the parabolical focus deviates described reflective
The central axes of bowl.
High power laser headlamp provided by the invention, including light source cell, wavelength conversion unit and reflector element, it is described
Reflector element is reflector, and the light-emitting window of the reflector and top are oppositely arranged, and the wavelength conversion unit includes at least two
A phosphor powder layer, each phosphor powder layer is corresponding with the focus of the reflector element, and the light source cell includes multiple laser
Source unit, the reflector are equipped with multiple thang-kng portions, and the light beam that each laser source unit is sent is described logical through one
It is projected to behind light portion on a phosphor powder layer.By setting multiple laser source units and phosphor powder layer, with the energy of dispersed light beam,
When avoiding the need for high-power illumination, the light beam of multiple lasing light emitters projects on a phosphor powder layer so as to cause energy excessively at the same time
Concentrate and burn out phosphor powder layer, and when one of phosphor powder layer is burnt out, corresponding laser source unit can be closed, using another
Outer laser source unit is illuminated, and is not interfered with and is worked on, and adaptability is good, and reliability is high.
Brief description of the drawings
Fig. 1 is the structure diagram of high power laser headlamp in the embodiment of the present invention 1；
Fig. 2 is the structure diagram of high power laser headlamp in the embodiment of the present invention 2；
Fig. 3 is the structure diagram of high power laser headlamp in the embodiment of the present invention 3；
Fig. 4 is the structure diagram of high power laser headlamp in the embodiment of the present invention 4.
Shown in figure：10th, laser source unit；210th, phosphor powder layer；30th, reflector element；310th, light-emitting window；320th, top；
330th, thang-kng portion；40th, radiator structure；50th, heat dissipation base.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of high power laser headlamp, including light source cell, wavelength conversion unit
With reflector element 30, the reflector element 30 is reflector, and the light-emitting window 310 of the reflector and top 320 are oppositely arranged, institute
Stating wavelength conversion unit includes at least two phosphor powder layers 210, Jiao of each phosphor powder layer 210 and the reflector element 30
Point corresponds to, and the light source cell includes multiple laser source units 10, and the reflector is equipped with multiple thang-kng portions, each described sharp
The light beam that light source cell 10 is sent is projected on a phosphor powder layer 210 after passing through a thang-kng portion 330, through the fluorescence
Bisque 210 inspires fluorescence, and is emitted from the light-emitting window 310.Preferably, the reflector is formed by parabola rotation,
The parabolical focus is located on the central axes of the reflector.Specifically, reflector only has a focus at this time, due to glimmering
Light bisque 210 has multiple, therefore the position of each phosphor powder layer 210 and the position of focus can only be as close to focuses, can not
Overlapped with focus, the hot spot on phosphor powder layer 210 cannot be focused totally on a bit at this time, and facula area increase, reduces fluorescence
Heat density on bisque 210, improves the service life of phosphor powder layer 210.Laser source unit 10 may include a lasing light emitter
It can also include multiple lasing light emitters, when including multiple lasing light emitters, luminous lasing light emitter quantity can be selected as needed.By setting
Multiple laser source units 10 and phosphor powder layer 210 are put, it is multiple to swash when avoiding the need for high-power illumination with the energy of dispersed light beam
The light beam of light source projects on a phosphor powder layer 210 so as to cause energy excessively to be concentrated and burn out phosphor powder layer 210 at the same time, and
When one of phosphor powder layer 210 is burnt out, corresponding laser source unit 10 can be closed, using other laser source unit 10
It is illuminated, does not interfere with and work on, adaptability is good, and reliability is high.
Fig. 1 is continued referring to, radiator structure 40, institute are additionally provided between the reflector element 30 and the wavelength conversion unit
State radiator structure 40 one end connect the wavelength conversion unit other end be pierced by from the top 320 of the reflector element 30 and with
Heat dissipation base 50 connects, i.e., a hole is opened up at the top of reflector element 30, one end of radiator structure 40 is therefrom pierced by.It is preferred that
, the radiator structure 40 is made of graphite.Specifically, graphite has very high thermal conductivity factor, heat conduction is fast, for will be multiple
Heat on phosphor powder layer 210 exports rapidly, avoids phosphor powder layer 210 from being burned.
Fig. 1 is continued referring to, the phosphor powder layer 210 is equipped with two, is set along the central axes of the reflector are symmetrical above and below
Put, the position of each phosphor powder layer 210 is corresponding with the focus of reflector.Preferably, the laser source unit 10 and the thang-kng
Portion 330 is equipped with two, is corresponded respectively with the phosphor powder layer 210, the light beam that each laser source unit 10 is sent
Through being projected to behind the thang-kng portion 330 on corresponding phosphor powder layer 210.
Preferably, which further includes the control unit being connected with the laser source unit 10, passes through
Control unit controls the working status of each laser source unit 10, to adjust the output power of laser lighting lamp, adapts to different fields
The lighting demand of conjunction.
Embodiment 2
As shown in Fig. 2, as different from Example 1, wavelength conversion unit described in the present embodiment is in polyhedral structure, institute
State and be equipped with phosphor powder layer 210 on polyhedral each face.Preferably, the laser source unit 10 and thang-kng portion 330 be and institute
State phosphor powder layer 210 to correspond, the light beam that each laser source unit 10 is sent is projected to after passing through the thang-kng portion 330
On one phosphor powder layer 210.Specifically, phosphor powder layer 210 can be the structures such as tetrahedron, hexahedron, octahedron, in reflector
On open up multiple with the one-to-one thang-kng portion 330 of phosphor powder layer 210, while set and each 330 corresponding laser of thang-kng portion
Source unit 10, makes receive the light beam that a laser source unit 10 is emitted on each phosphor powder layer 210, at this time multiple laser
Source unit 10 can work at the same time, and not only avoid the problem of phosphor powder layer 210 is easily burnt out, and further improve laser lighting
The power of lamp.It should be noted that, it can be placed in a different manner in reflector according to the structure of wavelength conversion unit herein, from
And quantity and the position in thang-kng portion 330 are designed, in Fig. 2, wavelength conversion unit uses hexahedron structure, and former and later two faces point
The light-emitting window 310 of other face reflector and top 320, therefore only need to open up a thang-kng portion respectively up and down in reflector
330, and a laser source unit 10 is respectively set outside each thang-kng portion 330, work at the same time four phosphor powder layers 210.
When wherein there is one to be burnt out even more than phosphor powder layer 210, other laser source units 10 can work on, without often more
Change.
Embodiment 3
As shown in figure 3, the wavelength conversion unit structure spherical in shape, the surface of the spherical structure is coated with phosphor powder layer
210.In the present embodiment, the laser source unit 10 and thang-kng portion 330 can be multiple according to setting is actually needed, and one is a pair of
Should, 8,10 even more thang-kng portions 30 such as are uniformly arranged along one week of reflector, are set respectively for each thang-kng portion 30
One corresponding laser source unit 10, makes the light beam that laser source unit 10 is sent glimmering through being projected to behind corresponding thang-kng portion 330
On light bisque 210.Using the program, when some positions of phosphor powder layer 210 are burnt out by rotating wavelength conversion unit
Laser lighting lamp can be made to work on, further increase the service life of wavelength conversion unit.
Embodiment 4
As shown in figure 4, as different from Example 1, reflector described in the present embodiment is formed by half of parabola rotation,
The parabolical focus deviates the central axes of the reflector.Specifically, equivalent to when rotated by parabolical axis phase
A distance is translated to the central axes (i.e. rotation axis) of reflector, so that the focus of reflector forms a circle or ellipse
Multiple phosphor powder layers 210, can be placed in the focal position of reflector by shape at this time, so that light beam is more concentrated, to improve
The depth of parallelism for the light being emitted from light-emitting window 310.Furthermore, it is necessary to illustrate, the top of the reflector formed in the present embodiment
320 originally have a hole, and radiator structure 40 directly can be therefrom pierced by, without extra openings.
In conclusion high power laser headlamp provided by the invention, including light source cell, wavelength conversion unit and reflection
Unit 30, the reflector element 30 are reflector, and the light-emitting window 310 of the reflector and top 320 are oppositely arranged, the wavelength
Converting unit includes at least two phosphor powder layers 210, the focus pair of each phosphor powder layer 210 and the reflector element 30
Should, the light source cell includes multiple laser source units 10, and the reflector is equipped with multiple thang-kng portions 330, each described sharp
The light beam that light source cell 10 is sent is projected on a phosphor powder layer 210 after passing through a thang-kng portion 330.It is more by setting
A laser source unit 10 and phosphor powder layer 210, with the energy of dispersed light beam, when avoiding the need for high-power illumination, multiple lasing light emitters
Light beam project at the same time on a phosphor powder layer 210 so as to causing energy excessively to be concentrated and burn out phosphor powder layer 210, and work as it
In a phosphor powder layer 210 when burning out, corresponding laser source unit 10 can be closed, carried out using other laser source unit 10
Illumination, does not interfere with and works on, and adaptability is good, and reliability is high.
Although embodiments of the present invention are illustrated in specification, these embodiments are intended only as prompting,
It should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
It should include within the scope of the present invention.
Claims (10)
1. a kind of high power laser headlamp, including light source cell, wavelength conversion unit and reflector element, it is characterised in that institute
It is reflector to state reflector element, and the light-emitting window of the reflector and top are oppositely arranged, and the wavelength conversion unit is included at least
Two phosphor powder layers, each phosphor powder layer is corresponding with the focus of the reflector element, and the light source cell includes multiple sharp
Light source cell, the reflector are equipped with multiple thang-kng portions, and the light beam that each laser source unit is sent is through described in one
It is projected to behind thang-kng portion on a phosphor powder layer.
2. high power laser headlamp according to claim 1, it is characterised in that the reflector element turns with the wavelength
Change between unit and be additionally provided with radiator structure, one end of the radiator structure connects the wavelength conversion unit other end from described anti-
Penetrate at the top of unit and be pierced by and be connected with heat dissipation base.
3. high power laser headlamp according to claim 2, it is characterised in that the radiator structure uses graphite system
Into.
4. high power laser headlamp according to claim 2, it is characterised in that the phosphor powder layer is equipped with two, edge
The central axes setting symmetrical above and below of the reflector.
5. high power laser headlamp according to claim 4, it is characterised in that the laser source unit and the thang-kng
Portion is equipped with two, is corresponded respectively with the phosphor powder layer, described in the light beam transmission that each laser source unit is sent
It is projected to behind thang-kng portion on corresponding phosphor powder layer.
6. high power laser headlamp according to claim 2, it is characterised in that the wavelength conversion unit is in polyhedron
Structure, is equipped with phosphor powder layer on each face of the polyhedral structure, and each laser source unit and thang-kng portion are and institute
Phosphor powder layer one-to-one corresponding is stated, the light beam that each laser source unit is sent is projected to a fluorescence after passing through the thang-kng portion
On bisque.
7. high power laser headlamp according to claim 2, it is characterised in that the wavelength conversion unit knot spherical in shape
Structure, the surface of the spherical structure are coated with phosphor powder layer.
8. high power laser headlamp according to claim 1, it is characterised in that further include and connect with the laser source unit
The control unit connect.
9. high power laser headlamp according to claim 1, it is characterised in that the reflector by parabola rotate and
Into the parabolical focus is located on the central axes of the reflector.
10. high power laser headlamp according to claim 1, it is characterised in that the reflector is by half of parabola
Rotation forms, and the parabolical focus deviates the central axes of the reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390173.9A CN107940328A (en) | 2017-12-21 | 2017-12-21 | A kind of high power laser headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711390173.9A CN107940328A (en) | 2017-12-21 | 2017-12-21 | A kind of high power laser headlamp |
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| Publication Number | Publication Date |
|---|---|
| CN107940328A true CN107940328A (en) | 2018-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711390173.9A Pending CN107940328A (en) | 2017-12-21 | 2017-12-21 | A kind of high power laser headlamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023035A (en) * | 2019-12-30 | 2020-04-17 | 上海市激光技术研究所 | Laser lighting structure and car light |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537806A (en) * | 2010-10-29 | 2012-07-04 | 夏普株式会社 | Light emitting device, vehicle headlamp, and illumination device |
| CN102853330A (en) * | 2011-06-28 | 2013-01-02 | 夏普株式会社 | Illumination device and vehicle headlight |
| US20150252964A1 (en) * | 2014-03-05 | 2015-09-10 | Sharp Kabushiki Kaisha | Light source device and illumination apparatus |
| CN107270256A (en) * | 2017-08-07 | 2017-10-20 | 超视界激光科技（苏州）有限公司 | Laser lighting lamp and its application |
| CN107461701A (en) * | 2017-06-13 | 2017-12-12 | 佛山市南海区协隆电器有限公司 | A kind of light projecting apparatus and illuminating lamp |
| CN207569688U (en) * | 2017-12-21 | 2018-07-03 | 超视界激光科技（苏州）有限公司 | A kind of high power laser headlamp |
-
2017
- 2017-12-21 CN CN201711390173.9A patent/CN107940328A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537806A (en) * | 2010-10-29 | 2012-07-04 | 夏普株式会社 | Light emitting device, vehicle headlamp, and illumination device |
| CN102853330A (en) * | 2011-06-28 | 2013-01-02 | 夏普株式会社 | Illumination device and vehicle headlight |
| US20150252964A1 (en) * | 2014-03-05 | 2015-09-10 | Sharp Kabushiki Kaisha | Light source device and illumination apparatus |
| CN107461701A (en) * | 2017-06-13 | 2017-12-12 | 佛山市南海区协隆电器有限公司 | A kind of light projecting apparatus and illuminating lamp |
| CN107270256A (en) * | 2017-08-07 | 2017-10-20 | 超视界激光科技（苏州）有限公司 | Laser lighting lamp and its application |
| CN207569688U (en) * | 2017-12-21 | 2018-07-03 | 超视界激光科技（苏州）有限公司 | A kind of high power laser headlamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023035A (en) * | 2019-12-30 | 2020-04-17 | 上海市激光技术研究所 | Laser lighting structure and car light |
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