CN209309907U - A kind of Wavelength converter, light source module group and headlamp - Google Patents
A kind of Wavelength converter, light source module group and headlamp Download PDFInfo
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- CN209309907U CN209309907U CN201821788101.XU CN201821788101U CN209309907U CN 209309907 U CN209309907 U CN 209309907U CN 201821788101 U CN201821788101 U CN 201821788101U CN 209309907 U CN209309907 U CN 209309907U
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- sapphire substrate
- powder layer
- phosphor powder
- wavelength converter
- metallic reflector
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Abstract
The utility model discloses a kind of Wavelength converter, light source module group and headlamps, the Wavelength converter includes the phosphor powder layer, sapphire substrate and metallic reflector set gradually, the sapphire substrate is in homogeneous transparent shape, and surface can plated film, the reflectivity of the metallic reflector is greater than 80%.Sapphire substrate by the way that homogeneous transparent is arranged between phosphor powder layer and metallic reflector avoids light from projecting and generates plasma on metallic reflector to light total transmissivity, reduces energy consumption, improves the capacity usage ratio of light source；In addition, the good heat conduction effect of sapphire substrate, can quickly export to metallic reflector for the heat generated on phosphor powder layer, promote the radiating rate of phosphor powder layer, avoid phosphor powder layer excessively high and impaired because of heat, improve its service life.The surface of sapphire substrate can plated film, phosphor powder layer can be bonded in process for sapphire-based on piece or be fixed on process for sapphire-based on piece in a manner of plated film, and production is flexible and convenient.
Description
Technical field
The utility model relates to lighting technical fields, and in particular to a kind of Wavelength converter, light source module group and headlamp.
Background technique
Laser (semiconductor laser diode) light source has many advantages, such as that energy concentration, irradiation distance are remote, utilizes laser excitation
The point light source of phosphor technologies (long-distance fluorescent powder technology) available super brightness, the point light source can be used in some with special
It is required that lighting area.
LASER Excited Fluorescence powder technology is to focus on laser on phosphor sheet, forms the point light of a luminous point very little
Source, fluorescent powder are excited to generate the stimulated light of high brightness, usually excite yellow fluorescent powder, the yellow light and residue of generation by blue laser
Blue light formed white light, then by optical system collect be emitted, to form laser lighting lamp.
Being excited the stimulated light generated due to fluorescent powder can be along any direction outgoing of 360 degree of space, in order to reduce stimulated light wave
Take, the metallic reflector of high reflectance is set usually below phosphor sheet, light is reflected and is emitted from upper surface, however by
There are bubbles in phosphor sheet, and plasma can be generated when stimulated light projects on metallic reflector after bubble,
So as to cause the loss of light.
Utility model content
Technical problem to be solved in the utility model is to overcome the above deficiency, and providing one kind can be to avoid plasma
Body generates, and reduces Wavelength converter, light source module group and the headlamp of fiber-loss.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of Wavelength converter, including successively
Phosphor powder layer, sapphire substrate and the metallic reflector of setting, the sapphire substrate is in homogeneous transparent shape, and surface can plate
The reflectivity of film, the metallic reflector is greater than 80%.
Further, the phosphor powder layer is fluorescence ceramics piece, and the fluorescence ceramics piece is Nian Jie with the sapphire substrate,
And the size of fluorescence ceramics piece is greater than the size of sapphire substrate.
Further, the phosphor powder layer is fluorescent glass matrix, and the fluorescent glass substrate coating is in sapphire substrate
Surface.
Further, the thickness of the sapphire substrate is less than 0.5mm.
Further, the metallic reflector is made of silver or aluminium.
Further, the sapphire substrate and metallic reflector are adhesively fixed.
Further, the sapphire substrate and metallic reflector are welded and fixed.
The utility model also provides a kind of light source module group, including Wavelength converter as described above and laser semiconductor,
On the laser projection to the phosphor powder layer of the Wavelength converter that the laser semiconductor issues.
The utility model also provides a kind of headlamp, including light source module group as described above.
Wavelength converter, light source module group and headlamp provided by the utility model, the Wavelength converter include successively
Phosphor powder layer, sapphire substrate and the metallic reflector of setting, the sapphire substrate is in homogeneous transparent shape, and surface can plate
The reflectivity of film, the metallic reflector is greater than 80%.By the way that homogeneous transparent is arranged between phosphor powder layer and metallic reflector
Sapphire substrate light total transmissivity is avoided light from projecting and generates plasma on metallic reflector, reduce energy disappear
Consumption, improves the capacity usage ratio of light source；In addition, the good heat conduction effect of sapphire substrate, the heat that can will be generated on phosphor powder layer
Amount quickly exports to metallic reflector, promotes the radiating rate of phosphor powder layer, avoids phosphor powder layer excessively high and impaired because of heat, mention
Its high service life.The surface of sapphire substrate can plated film, phosphor powder layer can be bonded in process for sapphire-based on piece and also with plating
The mode of film is fixed on process for sapphire-based on piece, and production is flexible and convenient.
Detailed description of the invention
Fig. 1-3 is the structural schematic diagram of three specific embodiments of the utility model Wavelength converter；
Fig. 4 is the structural schematic diagram of a specific embodiment of the utility model light source module group.
It is as shown in the figure: 10, phosphor powder layer；20, sapphire substrate；30, metallic reflector；40, laser semiconductor.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing:
As shown in Figure 1, the utility model provides a kind of Wavelength converter, including set gradually phosphor powder layer 10,
Sapphire substrate 20 and metallic reflector 30, the sapphire substrate 20 be in homogeneous transparent shape, and surface can plated film, the metal
The reflectivity in reflecting layer 30 is greater than 80%.Specifically, have yellow fluorescent powder in phosphor powder layer 10, it can be by part blue excitation light
It is converted into yellow light, the yellow light mixing that unconverted blue light and phosphor powder layer 10 are emitted can form white light.Sapphire substrate 20
Main component is aluminum oxide (Al2O3) monocrystal, it is internal there is no bubble to light total transmissivity in the form of homogeneous transparent
Deng not will lead to light and project and generate plasma on metallic reflector 30, reduce energy consumption, improve the energy benefit of light source
With rate；In addition, the thermal coefficient of sapphire substrate 20 is 45W/Mlk, good heat conduction effect can will be generated on phosphor powder layer 10
Heat quickly exports to metallic reflector 30, promotes the radiating rate of phosphor powder layer 10, avoids phosphor powder layer 10 because heat is excessively high
And be damaged, improve its service life.The surface of sapphire substrate 20 can plated film, phosphor powder layer 10 can be bonded in sapphire substrate
It can also be fixed in a manner of plated film on sapphire substrate 20 on 20.Metallic reflector 30 uses the made of metal of high reflectance
At, it can be such as made of silver or aluminium, make the reflectivity of metallic reflector 30 greater than 80%, reduction ray waste.
Preferably, the phosphor powder layer 10 is fluorescence ceramics piece, and the fluorescence ceramics piece and the sapphire substrate 20 are viscous
It connects, and the size of fluorescence ceramics piece is greater than the size of sapphire substrate 20.Specifically, fluorescence ceramics piece has high-melting-point, height hard
The advantages that degree, high-wearing feature, resistance to oxidation, can bear 1000 degrees Celsius, it is not easy to be heated and damage, and wear-resisting, resistance to oxidation, make
It is long with the service life.As shown in Fig. 2, fluorescence ceramics piece is bonded on sapphire substrate 20 by transparent adhesive tape, the two is fixed together, and
The size of fluorescence ceramics piece is greater than the size of sapphire substrate 20, i.e. fluorescence ceramics piece bonding that sapphire substrate 20 is completely covered
Face, the light for reflecting metallic reflector 30 as much as possible can project fluorescence ceramics piece after penetrating sapphire substrate 20
On, it further avoids ray waste and leaks and form veiling glare, improve illuminating effect.
Preferably, the phosphor powder layer 10 is fluorescent glass matrix, and the fluorescent glass substrate coating is in sapphire substrate
20 surfaces.Specifically, the good heat dissipation effect of fluorescent glass matrix, and can by directly by plated film in a manner of with sapphire substrate 20
It is fixed, and in plated film, meanwhile, in order to which the light for reflecting metallic reflector 30 is projected as far as possible in fluorescent glass matrix,
In the present embodiment, it is coated with the film layer of fluorescent glass matrix in the upper surface of sapphire substrate 20 and side or surface,
As shown in figure 3, to avoid ray waste and leaking and forming veiling glare.
Preferably, the thickness of the sapphire substrate 20 is less than 0.5mm, can be 0.2mm, 0.3mm, 0.4mm etc., due to
The thickness of sapphire substrate 20 is bigger, and the thickness of phosphor powder layer 10 is bigger or area coverage is bigger, and the thickness of sapphire substrate 20
Degree also directly contributes influence to heat transfer efficiency, therefore is guaranteeing the case where surface of metallic reflector 30 does not generate plasma
Under, the thickness of sapphire substrate 20 is as small as possible.
Preferably, the sapphire substrate 20 and metallic reflector 30 are adhesively fixed, i.e., by transparent adhesive tape resistant to high temperature or
Heat enhances translucent glue and sapphire substrate 20 and metallic reflector 30 bonds together, and guarantees that bonding plane is smooth, avoids
Diffusing reflection occurs.
Preferably, the sapphire substrate 20 and metallic reflector 30 are welded and fixed, i.e., are welded on sapphire substrate 20
On metallic reflector 30, and guarantee that welding surface is smooth, avoids that diffusing reflection occurs.
As shown in figure 4, the utility model also provides a kind of light source module group, including Wavelength converter as described above and swash
Photosemiconductor 40, on the laser projection to the phosphor powder layer 10 of the Wavelength converter that the laser semiconductor 40 issues.It should
Laser semiconductor 40 is blue-light semiconductor, issues blue laser, and phosphor powder layer 10 can convert Huang for part blue excitation light
The yellow light that light, unconverted blue light and phosphor powder layer 10 are emitted is mixed to form white light.
The utility model also provides a kind of headlamp, including light source module group as described above.It certainly further include being set to the light
The shell and the heat-sink unit between the shell and Wavelength converter of the source periphery Mo Zu, the headlamp can be used for this
Headlamp is applicable to the application field that stage lighting, searchlight, headlight for vehicles, Projection Display etc. need super brightness light source, such as
Car headlamp.
In conclusion Wavelength converter provided by the utility model, light source module group and headlamp, the Wavelength converter
Including the phosphor powder layer 10, sapphire substrate 20 and metallic reflector 30 set gradually, the sapphire substrate 20 is in uniformly saturating
Bright shape, and surface can plated film, the reflectivity of the metallic reflector 30 is greater than 80%.By in phosphor powder layer 10 and metallic reflection
The sapphire substrate 20 that homogeneous transparent is arranged between layer 30 avoids light from projecting on metallic reflector 30 light total transmissivity
Plasma is generated, energy consumption is reduced, improves the capacity usage ratio of light source；In addition, the thermal coefficient of sapphire substrate 20 is
The heat generated on phosphor powder layer 10 can quickly be exported to metallic reflector 30 by 45W/Mlk, good heat conduction effect, be promoted glimmering
The radiating rate of light bisque 10 avoids phosphor powder layer 10 from improving its service life because heat is excessively high and impaired.Sapphire substrate 20
Surface can plated film, phosphor powder layer 10 can be bonded on sapphire substrate 20 or be fixed in a manner of plated film sapphire
On substrate 20, production is flexible and convenient.
Although the embodiments of the present invention is illustrated in specification, these embodiments are intended only as mentioning
Show, should not limit the protection scope of the utility model.Various omissions are carried out in the range of not departing from the utility model aims, are set
It changes and change should be included in the protection scope of the utility model.
Claims (9)
1. a kind of Wavelength converter, which is characterized in that including the phosphor powder layer, sapphire substrate and metallic reflection set gradually
Layer, the sapphire substrate are in homogeneous transparent shape, and surface can plated film, the reflectivity of the metallic reflector is greater than 80%.
2. Wavelength converter according to claim 1, which is characterized in that the phosphor powder layer is fluorescence ceramics piece, institute
State that fluorescence ceramics piece is Nian Jie with the sapphire substrate, and the size of fluorescence ceramics piece is greater than the size of sapphire substrate.
3. Wavelength converter according to claim 1, which is characterized in that the phosphor powder layer is fluorescent glass matrix,
The fluorescent glass substrate coating is in sapphire substrate surface.
4. Wavelength converter according to claim 1, which is characterized in that the thickness of the sapphire substrate is less than
0.5mm。
5. Wavelength converter according to claim 1, which is characterized in that the metallic reflector is using silver or aluminum
At.
6. Wavelength converter according to claim 1, which is characterized in that the sapphire substrate and metallic reflector are viscous
Connect fixation.
7. Wavelength converter according to claim 1, which is characterized in that the sapphire substrate and metallic reflector weldering
Connect fixation.
8. a kind of light source module group, which is characterized in that including Wavelength converter as described in any one of claims 1 to 7 and swash
Photosemiconductor, on the laser projection to the phosphor powder layer of the Wavelength converter that the laser semiconductor issues.
9. a kind of headlamp, which is characterized in that including light source module group as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821788101.XU CN209309907U (en) | 2018-11-01 | 2018-11-01 | A kind of Wavelength converter, light source module group and headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821788101.XU CN209309907U (en) | 2018-11-01 | 2018-11-01 | A kind of Wavelength converter, light source module group and headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209309907U true CN209309907U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821788101.XU Active CN209309907U (en) | 2018-11-01 | 2018-11-01 | A kind of Wavelength converter, light source module group and headlamp |
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| CN (1) | CN209309907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282246A (en) * | 2018-11-01 | 2019-01-29 | 苏州晶清光电科技有限公司 | A kind of Wavelength converter, light source module group and headlamp |
| CN114321748A (en) * | 2021-12-28 | 2022-04-12 | 林耀 | White light source device |
-
2018
- 2018-11-01 CN CN201821788101.XU patent/CN209309907U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282246A (en) * | 2018-11-01 | 2019-01-29 | 苏州晶清光电科技有限公司 | A kind of Wavelength converter, light source module group and headlamp |
| CN114321748A (en) * | 2021-12-28 | 2022-04-12 | 林耀 | White light source device |
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