CN109703120A - A kind of reflective blue laser light fixture - Google Patents
A kind of reflective blue laser light fixture Download PDFInfo
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- CN109703120A CN109703120A CN201910062607.5A CN201910062607A CN109703120A CN 109703120 A CN109703120 A CN 109703120A CN 201910062607 A CN201910062607 A CN 201910062607A CN 109703120 A CN109703120 A CN 109703120A
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Abstract
A kind of reflective blue laser light fixture, is related to lighting technical field.For multilayered structure, luminescent layer, substrate, light scattering layer and high reflection aluminium sheet are sequentially consisted of；The luminescent layer, substrate, light scattering layer and high reflection aluminium sheet are closely connected by way of sintering.The luminescent layer is the glass state material containing fluorescent powder.The substrate is the aluminium oxide or zinc oxide or quartz of surface coating.The light scattering layer is the glass state material with microcellular structure, and the glass state material with microcellular structure is made of glass powder with low melting point and hollow alumina.The thickness proportion of the light scattering layer, substrate and luminescent layer is (1 ︰, 10 ︰ 1)~(2 ︰, 5 ︰ 2).The blue laser wave-length coverage is 420~480nm.The face that light scattering layer slurry is painted on substrate is placed on high reflection aluminium sheet.
Description
Technical field
The present invention relates to lighting technical fields, more particularly, to a kind of reflective blue laser light fixture.
Background technique
Lighting engineering constantly moves ahead with social whole progress.Animal and plant fat, fossil fuel are relied on from initial, is arrived
Incandescent lamp and gas-discharge lamp (fluorescent lamp), later in the nineties in last century, relatively energy-efficient LED white-light illuminating starts to flow
Row.Since the cost of laser diode gradually decreases, performance tends towards stability, and using laser to be increasingly becoming as lighting source can
Energy.
Laser lighting divides visible light lasers illumination and infrared laser illumination.
Visible light lasers illumination, is divided into following two by principle: blue light excites fluorescent material to realize white-light illuminating or red green
Blue Laser synthesizing white laser or true color optical illumination.Infrared laser illumination is then applied to night vision more, the monitoring of night camera head is shone
It is bright.Wherein blue laser excitation fluorescent material realizes that white-light illuminating is the technology that mainstream technology is also functionization the most.
In fact, laser lighting technology and LED illumination are from principle of luminosity without too big difference.But LED light source is compared, is swashed
The problem of optical diode declines there is no light efficiency, in illumination, laser lighting can realize very high brightness, i.e. laser illuminator
Part has the super brightness (this while meaning that illuminating device will bear more heat radiations) for outclassing LED.But because laser is
Line light, directionality is very strong, and the hot spot color of obtained device is extremely uneven, and visual effect is also immature at present, need to be changed
Into.
Need exist for, it is emphasized that either which kind of laser lighting technology, for example to face two problems: 1. swashs when blue
When light is irradiated on fluorescent material, since fluorescent material imitates the conversion that blue laser is converted into white light complementary light (usually yellow light)
Rate is less than 100%, therefore quite a few laser energy can be converted to the form of heat, this will lead in the temperature of fluorescent material
It rises, and hot quenching phenomenon can occur for the rising of the temperature of fluorescent material, luminous intensity reduces；When being converted to yellow light from blue light simultaneously,
Since, there are capacity volume variance, i.e. Stokes shift, this portion of energy difference can also discharge in the form of heat between blue light and yellow light,
The temperature for also resulting in fluorescent material increases, and generates hot-quenching and goes out；Terrifically, when the power of blue laser is sufficiently high, when unit
In, the de excitation of centre of luminescence quantity living is less than the blue photons number reached in fluorescent material, and the luminous intensity of illuminating device is not
It can increase with the power of excitation blue laser, that is, so-called excitation Quenching occur.Therefore blue laser illuminates necessary face
Pair first problem be how as much as possible reduce fluorescent material temperature increase.2. laser is collimated light.When collimation
When blue laser is irradiated to phosphor surface, a hot spot is generated.This hot spot has a characteristic that the blue light of spot center
Brightness is extremely strong, visually partially blue；It is offset slightly from the position at center, there are the visions of a yellow light and blue light ratio relative equilibrium
White light area；And for outermost hot spot, since the intensity of blue laser is lower, the yellow light accounting that fluorescent material is sent out is higher,
At this point, being visually rendered as yellow light." clock " shape is presented in the light intensity of laser lighting device hot spot on the whole simultaneously, and intermediate is bright
Degree is high, and the brightness of surrounding gradually decreases.Therefore the Second Problem that blue laser illumination must face is how as much as possible
Guarantee the uniformity of illuminating device hot spot color and brightness.
Laser lighting device can generate a large amount of heat in use and cause luminescent substance that hot-quenching occurs and go out, it is contemplated that
Glass state material (or ceramic masses) has good heat conduction and heat radiation ability, therefore in most cases, the fluorescence of laser lighting
Substance is usually glassy state (or ceramic form).The preparation method of glassy state fluorescent material be using glass powder with low melting point with it is glimmering
After evenly mixing, tabletted shape is sintered light powder at a certain temperature, and glass powder melts, and after cooling, fluorescent powder grain is equably
It is distributed in piece shape, obtains the vitreousness light tiles containing fluorescent powder.And the fluorescent material of ceramic form, generally use curtain coating
Method or pressure sintering etc. obtain.In view of the cost problem of manufacture, glass state material is technology mainstream.
Either which kind of method obtains fluorescent material, although heat conduction and heat radiation ability all with higher, can not all solve
The non-uniform problem of laser lighting device hot spot.Therefore, in order to solve this problem, can be manufactured in fluorescent material appropriate micro-
Hole.Such as by glass powder with low melting point, fluorescent powder and organic particle or will such as magnesium aluminate spinel transparency material and fluorescent powder
It is uniformly mixed with organic particle, is then pressed into type, finally by sintering, obtains the fluorescent material containing a certain amount of micropore.
Scattering using micropore to light, by the blue laser " breaing up " of collimation, so that laser lighting device generates hot spot more evenly.On
State method has embodiment in Patent Documents 1 to 4, and which is not described herein again.It is to be noted that the presence of micropore can destroy material
The continuity of material reduces the mechanical strength and heat dissipation i.e. heating conduction of material.
In short, currently, can not all be solved the problems, such as follows in all public technology schemes: realizing blue laser illumination
Component used in fluorescent material, be responsible for the function that luminous part assumes responsibility for breaing up simultaneously the blue laser (by manufacturing micropore)
Can, therefore heat dissipation, thermally conductive and uniform laser facula problem cannot be balanced simultaneously.Although i.e. glassy state either ceramic form
Fluorescent material heat dissipation and thermally conductive relatively strong, has positive effect for resisting hot-quenching and going out, but when in order to break up blue laser, so that swashing
The hot spot of optical illumination device generation more evenly, and the micropore manufactured in the fluorescent material of the either ceramic form of glassy state, though
The laser of collimation can be so broken up, but the fluorescent material heat dissipation and the capacity of heat transmission of the either ceramic form of glassy state can be reduced, together
When reduce the either ceramic form of glassy state fluorescent material mechanical strength.I.e. all at present disclosed technical solutions, all
It is the technical solution of compromise, can only accomplishes to control pore density as much as possible, allows in the uniform situation of hot spot, fluorescent material dissipates
Heat and heating conduction, which drop to, is unlikely to unacceptable degree, but this is before being with the light efficiency for reducing laser lighting device entirety
It mentions.
Bibliography:
Patent document 1:B Hope, P receive this, V Larry Hagman, and Y grams, W shellfish Yale, polycrystalline ceramics, its preparation
Method and purposes, application number: 201480006289.6.
Patent document 2:JF section rope, pungent gram of N, luminescent ceramic converter and preparation method thereof application number:
201180007665.X.
Patent document 3:P Si meter Te, HH Bechtel, the Basel W are special, BS Shi Laienmache, electroluminescent
Luminescent device, application number: 200780010049.3.
Patent document 4:JG wins thunder Kemp, and OJ Steger is graceful, the west HAM Fan Haer, JFM
Lay is gloomy, for being scattered in the optical ceramics of light emitting diode by the light of controlled porosity, application number: 200980102274.9.
Summary of the invention
The object of the present invention is to provide a kind of reflective blue laser light fixtures.
The present invention is multilayered structure, sequentially consists of luminescent layer, substrate, light scattering layer and high reflection aluminium sheet；Institute
Luminescent layer, substrate, light scattering layer and high reflection aluminium sheet is stated closely to connect by way of sintering.
The luminescent layer is the glass state material containing fluorescent powder, and the glass state material containing fluorescent powder is by low melting point
Glass powder is uniformly mixed with fluorescent powder, and addition organic carrier (such as terpinol) is modulated into slurry, obtains glass finally by sintering
The luminescent layer of state.The mass ratio of glass powder with low melting point and fluorescent powder is (4 ︰ 1)~(1 ︰ 4).It is glimmering used in the luminescent layer
Light powder is the fluorescent powder with garnet structure, and the fluorescent powder with garnet structure is under blue light excitation, emission spectrum
Main peak range be located at 525~580nm.The fluorescent powder with garnet structure is Y3Al5O12: Ce or Tb3Al5O12: Ce or
Lu3Al5O12: Ce or Ca3Sc2Si3O12: the solid solution that Ce or above-mentioned fluorescent powder are formed.
The substrate is the aluminium oxide or zinc oxide or quartz of surface coating, and the substrate can be (blue for transparent aluminium oxide
Jewel) substrate.The anti-reflection film for being coated with enhancing blue light on one side and penetrating of the substrate, the blue light for being 420~480nm to wave-length coverage
There are extremely strong transmission effects；The another side of substrate is coated with the reflectance coating of enhancing yellow light reflection, to 525~580nm's of wave-length coverage
Yellow light has extremely strong reflecting effect.
The light scattering layer is the glass state material with microcellular structure, the glass state material with microcellular structure
It is made of glass powder with low melting point and hollow alumina, the mass ratio of glass powder with low melting point and hollow alumina is (99 ︰ 1)~(9 ︰
1)。
The thickness proportion of the light scattering layer, substrate and luminescent layer be (1 ︰, 10 ︰ 1)~(2 ︰, 5 ︰ 2), light scattering layer,
The thickness proportion of substrate and luminescent layer is preferably (1 ︰, 10 ︰ 1)~(1 ︰, 5 ︰ 1).
The blue laser wave-length coverage is 420~480nm.
In the present invention, the method for obtaining microcellular structure is by by glass powder with low melting point and with certain grain size distribution range
Hollow alumina microballoon be uniformly mixed, the volatile substances for adding proper proportion are modulated into slurry, finally by sintering obtain
Light scattering layer.1~10 μm of diameter range of outside (sphere) of the hollow alumina microballoon, internal (hollow) diameter range are
0.1~0.5 times of external (sphere) diameter.
The face for being painted with light scattering layer slurry on substrate is placed on high reflection aluminium sheet, luminescent layer slurry will be carried
It is sintered at high temperature with the substrate and high reflection aluminium sheet of light scattering layer slurry, it is final to obtain light scattering layer and substrate, shine
The high laser lighting component of bond strength between layer and substrate.
When the reflective blue laser light fixture works, after blue laser is irradiated to luminescent layer, luminescent layer issues yellow
Light, part are not perforated through substrate by the blue light that luminescent layer absorbs, and incident ray scattering layer passes through the porous knot in light scattering layer
Structure realizes the scattering of blue laser hot spot, improves the uniformity of hot spot, and the laser after scattering passes through the reflection of high reflection aluminium sheet,
Again by light scattering layer, rescattering is carried out, penetrates substrate, secondary excitation luminescent layer later, luminescent layer issues yellow light, not
The blue laser that is absorbed by luminescent layer and yellow light is compound obtains white light.
The present invention provides a kind of reflective blue laser light fixtures.The laser lighting component has multilayered structure special
Sign.Be followed successively by luminescent layer, top and bottom be coated with respectively yellow light reflecting layer and blue light antireflection layer substrate and light scattering layer and height it is anti-
Penetrate aluminium sheet.After blue laser is irradiated to luminescent layer, luminescent layer issues yellow light, and part is not perforated through base by the blue light that luminescent layer absorbs
Plate, incident ray scattering layer realize the scattering of blue laser hot spot by the porous structure in light scattering layer, improve hot spot
Uniformity, laser after scattering passes through the reflection of high reflection aluminium sheet, again by light scattering layer, carries out rescattering, it
Substrate, secondary excitation luminescent layer are penetrated afterwards, and luminescent layer issues yellow light, and the blue laser and yellow light not absorbed by luminescent layer are compound to be obtained
To white light.Compared with prior art, light fixture of the invention has completely new structure, and manufacturing process difficulty is minimum, thermal conductivity
Conventional structure is significantly better than with laser facula scattering property.
In the present invention, it is responsible for luminous fluorescent material (luminescent layer) in light fixture and is responsible for breaing up blue laser, make
The more uniform light scattering layer of hot spot is entirely isolated, when on blue laser irradiation laser lighting component, light scattering
Layer only is responsible for breaing up laser facula (breaing up twice, breaing up when directly penetrating for blue laser for the first time；Second is warp
After crossing the aluminium sheet reflection being in close contact with light scattering layer, blue laser is broken up by secondary), make light spot homogenizing, and in luminescent layer
There is no the defects of any micropore, to have higher hot quenching feature and mechanical strength, be able to achieve higher brightness output and obtain
Obtain higher light efficiency (this means that this illuminating device is more energy saving).And the material of luminescent layer and light scattering layer is isolated and is plated for one side
In addition the anti-reflection film for having enhancing blue light to penetrate is coated with the substrate of the reflectance coating of enhancing yellow light reflection, wherein it is blue to be coated with enhancing on one side
The anti-reflection film that light penetrates is combined closely by being sintered with light scattering layer, and reflectance coating and the luminescent layer for being coated with enhancing yellow light reflection are logical
Oversintering is combined closely, and aluminium sheet and light scattering layer are in close contact, to realize efficient scattering, reflection and the indigo plant of blue laser
Ray laser excites the high-efficiency bight-dipping of lower the issued yellow light of fluorescent material, and completely, thoroughly solving cannot in prior art
Heat dissipation, thermally conductive and uniform laser facula problem are balanced simultaneously.The present invention can promote the functionization of laser lighting.
Detailed description of the invention
Fig. 1 is the structure composition schematic diagram of the embodiment of the present invention.
Fig. 2 is correlated colour temperature distribution map obtained in comparative example 1 of the present invention.
Fig. 3 is correlated colour temperature distribution map obtained in comparative example 2 of the present invention.
Fig. 4 is correlated colour temperature distribution map obtained in comparative example 3 of the present invention.
Fig. 5 is correlated colour temperature distribution map obtained in comparative example 4 of the present invention.
Fig. 6 is correlated colour temperature distribution map obtained in the embodiment of the present invention 1.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
As shown in Figure 1, the embodiment of the present invention is followed successively by luminescent layer 02, substrate 05, light from bottom to up using multilayered structure
Line scattering layer 07 and high reflection aluminium sheet 10；Light scattering layer 07, substrate 05, luminescent layer 02 and high reflection aluminium sheet 10 pass through sintering
Mode closely connects.
After blue laser is irradiated to luminescent layer 02, luminescent layer 02 issues yellow light, the blue light that part is not absorbed by luminescent layer 02
It is perforated through substrate 05, incident ray scattering layer 07 realizes blue laser by porous (micropore) structure in light scattering layer 07
The scattering of hot spot improves the uniformity of hot spot, and the laser after scattering passes through the reflection 10 of high reflection aluminium sheet, dissipates again by light
Layer 07 is penetrated, rescattering is carried out, penetrates substrate 05, secondary excitation luminescent layer 02 later, luminescent layer 02 issues yellow light, do not shone
The blue laser and yellow light is compound obtains white light that layer absorbs.
Luminescent layer 02 is 03 substance of glassy state containing fluorescent powder 01.Preferably, by glass powder with low melting point and fluorescent powder 01
It is uniformly mixed, the volatile substances for adding proper proportion are modulated into slurry, and the luminescent layer of glassy state 03 is obtained finally by sintering
02.Fluorescent powder 01 used in luminescent layer 02 is the fluorescent powder with garnet structure.Glass powder with low melting point and fluorescent powder
Mass ratio are as follows: (8 ︰ 2)~(2 ︰ 8).In some embodiments provided by the invention, the fusing point of the glass powder with low melting point is 600
℃.In some embodiments provided by the invention, the mass ratio of the glass powder with low melting point and fluorescent powder is 1 ︰ 1.It is described to have
The fluorescent powder 01 of garnet structure is Y3Al5O12: Ce or Tb3Al5O12: Ce or Lu3Al5O12: Ce or Ca3Sc2Si3O12: Ce or on
State the solid solution of fluorescent powder formation (the main peak range of corresponding emission spectrum is located at 525~580nm).More provided by the invention
In embodiment, the fluorescent powder 01 is Y3Al5O12:Ce。
Light scattering layer 07 is 08 substance of glassy state with microcellular structure.The method for obtaining microcellular structure is by will be low
Melting glass frit is uniformly mixed with the hollow alumina microballoon 08 with certain grain size distribution range, adds easily waving for proper proportion
Substance modulation is sent out into slurry, obtains light scattering layer 07 finally by sintering.The quality of glass powder with low melting point and hollow alumina
Than are as follows: (99~9) ︰ 1.In some embodiments provided by the invention, the quality of the glass powder with low melting point and hollow alumina
Than for 99 ︰ 1.1~10 μm of diameter range of outside (sphere) of the hollow alumina microballoon 08, internal (hollow) diameter range are
0.1~0.5 times of external (sphere) diameter.In some embodiments provided by the invention, the outside of hollow alumina microballoon is straight
Diameter is preferably 2 μm, and internal (hollow) diameter is 0.2 times, i.e., 0.4 μm of external (sphere) diameter.More provided by the invention
In embodiment, the fusing point of the glass powder with low melting point is 600 DEG C.
Substrate 05 is the aluminium oxide or zinc oxide or quartz of surface coating.The plated film is coated with enhancing blue light on one side and penetrates
Anti-reflection film 06, to wave-length coverage be 420~480nm blue light have extremely strong transmission effects；In addition it is coated with enhancing yellow light on one side
The reflectance coating 04 of reflection has extremely strong launching effect to the yellow light of 525~580nm of wave-length coverage.Preferably, substrate 02 is transparent
Aluminium oxide (sapphire) substrate.In some embodiments provided by the invention, substrate is preferably sapphire substrate.
The thickness proportion of light scattering layer 07, substrate 05 and luminescent layer 02 is (1 ︰, 10 ︰ 1)~(2 ︰, 5 ︰ 2).Preferably, light
The thickness proportion of line scattering layer 07, substrate 02 and luminescent layer 02 is (1 ︰, 10 ︰ 1)~(1 ︰, 5 ︰ 1).In some realities provided by the invention
It applies in example, the thickness proportion of light scattering layer 07, substrate 02 and luminescent layer 02 are as follows: 1 ︰, 10 ︰ 1.
In the present invention, the thickness of high reflection aluminium sheet 10 is limited without stringent.As long as high reflection aluminium sheet 10 has visible light
The reflectivity of 95% or more (being coated with the face that the anti-reflection film 06 that enhancing blue light penetrates contacts with substrate 05).
Light scattering layer 07, substrate 05, luminescent layer 02 and high reflection aluminium sheet 10 realize close connection by way of sintering.
Preferably, glass powder with low melting point is uniformly mixed with fluorescent powder 01, the volatile substances for adding proper proportion are modulated into slurry, apply
It brushes and is coated on the reflection film surface 04 of enhancing yellow light reflection；Then by glass powder with low melting point with certain grain size distribution range
Hollow alumina microballoon 09 is uniformly mixed, and the volatile substances for adding proper proportion are modulated into slurry, is brushed to and is coated with enhancing indigo plant
06 on the anti-reflection film surface that light penetrates, the face 06 that light scattering layer slurry is painted on substrate is then placed on high reflection aluminium sheet 10
On, then the substrate for carrying 07 slurry of 02 slurry of luminescent layer and light scattering layer and high reflection aluminium sheet 10 are burnt at high temperature
Knot, it is final to obtain the laser lighting component that bond strength is high between light scattering layer and substrate, luminescent layer and substrate.In this hair
In some embodiments of bright offer, the temperature of the high temperature sintering is preferably 600 DEG C.
The blue laser light fixture, reflection blue laser wave-length coverage is 420~480nm.It is provided in the present invention
Some embodiments in, the blue laser wavelength is preferably 450nm.
The present invention is coated with the substrate and luminescent layer of yellow light reflecting layer and blue light antireflection layer with light scattering layer, top and bottom respectively
It is basic structure with high reflection aluminium sheet, obtains a kind of reflective blue laser light fixture.
In order to further illustrate the present invention, with reference to embodiments to a kind of reflective blue laser photograph provided by the invention
Bright component is described in detail.
Material used in following comparative example or embodiment or reagent are commercially available.
Comparative example 1
By Y3Al5O12: Ce fluorescent powder is uniformly mixed with glass powder with low melting point according to 1 ︰ 1 of mass ratio, and addition is appropriate when mixing
Terpinol to adjust the viscosity of slurry.Then above-mentioned slurry is brushed to the indigo plant for being coated with the reflectance coating of enhancing yellow light reflection on one side
On jewel substrate, brushing with a thickness of 100 μm, substrate with a thickness of 1mm.In addition the sapphire substrate is coated with enhancing indigo plant on one side
The anti-reflection film that light penetrates.Then the substrate for carrying slurry (face for being coated with the anti-reflection film that enhancing blue light penetrates) is placed on high reflection
It on aluminium sheet, is sintered under high temperature, sintering temperature is 600 DEG C, sintering time 30min, after sample is cooling.
The device is irradiated using the blue laser that power is 10W, launch wavelength is 450nm, from luminescent layer incidence.Hot spot
The measurement result of uniformity is shown in Fig. 2.As can be seen that due to the structure (micropore) of not no scattering laser, when deviateing spot center
Distance increases a little, and the correlated colour temperature on device for position is substantially reduced, i.e. the device that obtains of this method, hot spot uniformity compared with
Difference.The thermal coefficient and compression strength of device are shown in Table 1.Due in device without manufacture micropore, the thermal coefficient of device and
Compression strength and luminous intensity are higher.
Comparative example 2
By Y3Al5O12: Ce fluorescent powder, polyethylene microballoon (outer dia is 2 μm, and inflated diameter is 0.4 μm) and low melting point
Glass powder is uniformly mixed according to 99 ︰ of mass ratio, 1 ︰ 99, and when mixing adds suitable terpinol to adjust the viscosity of slurry.Then will
Above-mentioned slurry is brushed on the sapphire substrate for being coated with the reflectance coating of enhancing yellow light reflection on one side, brushing with a thickness of 100 μm, base
Plate with a thickness of 1mm.Then the substrate for carrying slurry (face for being coated with the anti-reflection film that enhancing blue light penetrates) is placed on high reflection
It on aluminium sheet, is sintered under high temperature, sintering temperature is 600 DEG C, sintering time 30min, after sample is cooling.
The device is irradiated using the blue laser that power is 10W, launch wavelength is 450nm, from luminescent layer incidence.Hot spot
The measurement result of uniformity is shown in Fig. 3.As can be seen that due to there is the structure of the rescattering of high reflection aluminium sheet and scattering laser (micro-
Hole) exist, when the distance for deviateing spot center increases a little, there is certain reduction in the correlated colour temperature on device for position,
But there is improvement compared with the effect of comparative example 1.But due to using polyethylene microballoon, which is organic matter, and one can be generated after sintering
Constant volume carbon causes device color partially black, and the luminous intensity of device decreases.That is the device of this method acquisition, hot spot uniformity
It increases to compared with comparative example 1.The thermal coefficient and compression strength and luminous intensity of device are shown in Table 1.Due to having micropore in device,
Therefore the thermal coefficient and compression strength of device are substantially reduced height compared with compared with comparative example.
Comparative example 3
By Y3Al5O12: Ce fluorescent powder is uniformly mixed with glass powder with low melting point according to 1 ︰ 1 of mass ratio, and addition is appropriate when mixing
Terpinol to adjust the viscosity of slurry.Then above-mentioned slurry is brushed to the indigo plant for being coated with the reflectance coating of enhancing yellow light reflection on one side
On jewel substrate, brushing with a thickness of 100 μm, substrate with a thickness of 1mm.By polyethylene microballoon, (outer dia is 2 μm, hollow
Diameter is 0.4 μm) it is uniformly mixed with glass powder with low melting point according to 1 ︰ 99 of mass ratio, when mixing, adds suitable terpinol to adjust
The viscosity of slurry.Then above-mentioned slurry is brushed on the sapphire substrate for being coated with the anti-reflection film that enhancing blue light penetrates on one side, is applied
Brush with a thickness of 100 μm.Then the substrate for carrying slurry (face for being coated with the anti-reflection film that enhancing blue light penetrates) is placed on high anti-
It penetrates on aluminium sheet, is sintered under high temperature, sintering temperature is 600 DEG C, sintering time 30min, after sample is cooling.
The device is irradiated using the blue laser that power is 10W, launch wavelength is 450nm, from luminescent layer incidence.Hot spot
The measurement result of uniformity is shown in Fig. 4.As can be seen that due to there is the structure of the rescattering of high reflection aluminium sheet and scattering laser (micro-
Hole) exist, when the distance for deviateing spot center increases, the correlated colour temperature reduction on device for position is unobvious, i.e. the party
The device that method obtains, hot spot uniformity have made marked progress compared with comparative example 1 and comparative example 2.The thermal coefficient and compression strength of device
1 is shown in Table with luminous intensity.Due in device (luminescent layer) without manufacture micropore, the thermal coefficient of device and compression strength compared with
It is high.But due to using polyethylene microballoon, which is organic matter, and certain carbon distribution can be generated after sintering, causes device color inclined
Black (light scattering layer), increased the absorption of laser, and the luminous intensity of device decreases compared with comparative example 1.
Comparative example 4
By Y3Al5O12: Ce fluorescent powder, hollow alumina microballoon (outer dia be 2 μm, inflated diameter be 0.4 μm) with it is low
Melting glass frit is uniformly mixed according to 99 ︰ of mass ratio, 1 ︰ 99, and when mixing adds suitable terpinol to adjust the viscosity of slurry.So
Above-mentioned slurry is brushed to afterwards be coated on one side enhancing yellow light reflection reflectance coating sapphire substrate on, brushing with a thickness of 100 μ
M, substrate with a thickness of 1mm.Then the substrate for carrying slurry (face for being coated with the anti-reflection film that enhancing blue light penetrates) is placed on height
It reflects on aluminium sheet, is sintered under high temperature, sintering temperature is 600 DEG C, sintering time 30min, after sample is cooling.
The device is irradiated using the blue laser that power is 10W, launch wavelength is 450nm, from luminescent layer incidence.Hot spot
The measurement result of uniformity is shown in Fig. 5.It can be seen that have high reflection aluminium sheet rescattering and scattering laser structure it is (micro-
Hole) exist, when the distance for deviateing spot center increases a little, there is certain reduction in the correlated colour temperature on device for position,
But there is the device for improving i.e. this method acquisition compared with the effect of comparative example 1 and comparative example 2, hot spot uniformity is to compared with comparative example 1 and right
Ratio 2 increases.The thermal coefficient and compression strength and luminous intensity of device are shown in Table 1.Due to having micropore, device in device
The thermal coefficient and compression strength of part are substantially reduced height compared with compared with comparative example 1.Due to using hollow alumina microballoon, which is
Inorganic matter organic matter, will not generate carbon distribution after sintering, the luminous intensity of device increased compared with comparative example 2.
Embodiment 1
By Y3Al5O12: Ce fluorescent powder is uniformly mixed with glass powder with low melting point according to 1 ︰ 1 of mass ratio, and addition is appropriate when mixing
Terpinol to adjust the viscosity of slurry.Then above-mentioned slurry is brushed to the indigo plant for being coated with the reflectance coating of enhancing yellow light reflection on one side
On jewel substrate, brushing with a thickness of 100 μm, substrate with a thickness of 1mm.By hollow alumina, (outer dia is 2 μm, hollow
Diameter is 0.4 μm) it is uniformly mixed with glass powder with low melting point according to 1 ︰ 99 of mass ratio, when mixing, adds suitable terpinol to adjust
The viscosity of slurry.Then above-mentioned slurry is brushed on the sapphire substrate for being coated with the anti-reflection film that enhancing blue light penetrates on one side, is applied
Brush with a thickness of 100 μm.Then the substrate for carrying slurry (face for being coated with the anti-reflection film that enhancing blue light penetrates) is placed on high anti-
It penetrates on aluminium sheet, is sintered under high temperature, sintering temperature is 600 DEG C, sintering time 30min, after sample is cooling.
The device is irradiated using the blue laser that power is 10W, launch wavelength is 450nm, from luminescent layer incidence, hot spot
The measurement result of uniformity is shown in Fig. 6.Clearly as thering is the rescattering of high reflection aluminium sheet and the structure (micropore) of scattering laser to deposit
When the distance for deviateing spot center increases very much, the correlated colour temperature on device for position is almost without any change, i.e.,
The device that this method obtains, hot spot uniformity are fabulous.Thermal coefficient, compression strength and the luminous intensity of device are shown in Table 1.Due to device
(luminescent layer) does not manufacture micropore in part, therefore the thermal coefficient of device and compression strength are higher.Due to using hollow alumina
Microballoon, the material are inorganic matter organic matter, carbon distribution will not be generated after sintering, the luminous intensity of device increased compared with comparative example 2.
The test data of table 1 comparative example and embodiment obtained device
| Serial number | Thermal coefficient (W/m.K) | Compression strength (MPa) | Center luminous intensity (arbitrary unit) |
| Comparative example 1 | 7.26 | 183.5 | 30.2 |
| Comparative example 2 | 3.12 | 33.2 | 18.5 |
| Comparative example 3 | 7.32 | 180.5 | 20.2 |
| Comparative example 4 | 4.32 | 46.7 | 23.1 |
| Embodiment 1 | 7.27 | 184.1 | 30.3 |
It should be noted that above embodiments are only one embodiment of the present invention, the present invention can also make other
Modification and improvement.
Claims (10)
1. a kind of reflective blue laser light fixture, it is characterised in that be multilayered structure, sequentially consist of luminescent layer, base
Plate, light scattering layer and high reflection aluminium sheet；The side that the luminescent layer, substrate, light scattering layer and high reflection aluminium sheet pass through sintering
Formula connection.
2. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that the luminescent layer is containing glimmering
The glass state material of light powder, the glass state material containing fluorescent powder are uniformly mixed with fluorescent powder by glass powder with low melting point, are added
Add organic carrier to be modulated into slurry, the luminescent layer of glassy state is obtained finally by sintering；Terpinol can be used in the organic carrier.
3. a kind of reflective blue laser light fixture as claimed in claim 2, it is characterised in that the glass powder with low melting point with
The mass ratio of fluorescent powder is (4 ︰ 1)~(1 ︰ 4)；Fluorescent powder used in the luminescent layer is the fluorescence with garnet structure
Powder, for the fluorescent powder with garnet structure under blue light excitation, the main peak range of emission spectrum is located at 525~580nm；Institute
Stating the fluorescent powder with garnet structure is Y3Al5O12: Ce or Tb3Al5O12: Ce or Lu3Al5O12: Ce or Ca3Sc2Si3O12:Ce
Or the solid solution that above-mentioned fluorescent powder is formed.
4. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that the substrate is surface coating
Aluminium oxide or zinc oxide or quartz, the substrate is transparent sapphire substrate.
5. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that the substrate is coated on one side
Enhance the anti-reflection film that blue light penetrates, there are transmission effects to the blue light that wave-length coverage is 420~480nm；The another side of substrate is coated with
The reflectance coating for enhancing yellow light reflection, has reflecting effect to the yellow light of 525~580nm of wave-length coverage.
6. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that the light scattering layer is tool
There is the glass state material of microcellular structure, the glass state material with microcellular structure is by glass powder with low melting point and hollow alumina
The mass ratio of composition, glass powder with low melting point and hollow alumina is (99 ︰ 1)~(9 ︰ 1).
7. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that the light scattering layer, substrate
Thickness proportion with luminescent layer is (1 ︰, 10 ︰ 1)~(2 ︰, 5 ︰ 2).
8. a kind of reflective blue laser light fixture as claimed in claim 7, it is characterised in that the light scattering layer, substrate
Thickness proportion with luminescent layer is (1 ︰, 10 ︰ 1)~(1 ︰, 5 ︰ 1).
9. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that the blue laser wavelength model
It encloses for 420~480nm.
10. a kind of reflective blue laser light fixture as described in claim 1, it is characterised in that be painted with light on the substrate
The face of line scattering layer slurry is placed on high reflection aluminium sheet, by carry luminescent layer slurry and light scattering layer slurry substrate and
High reflection aluminium sheet is sintered at high temperature, and bond strength is high between final acquisition light scattering layer and substrate, luminescent layer and substrate
Laser lighting component.
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| CN201910062607.5A CN109703120B (en) | 2019-01-23 | 2019-01-23 | Reflective blue laser lighting assembly |
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| CN201910062607.5A CN109703120B (en) | 2019-01-23 | 2019-01-23 | Reflective blue laser lighting assembly |
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| CN109703120B CN109703120B (en) | 2020-09-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321155A (en) * | 2020-11-06 | 2021-02-05 | 焦作市吉成磁电有限公司 | Laser lighting assembly and method of manufacturing the same |
| CN113251326A (en) * | 2021-06-04 | 2021-08-13 | 厦门大学 | Fluorescence conversion device for realizing high-quality warm white laser illumination light source |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070660A1 (en) * | 2000-12-07 | 2002-06-13 | Lg. Philips Lcd Co., Ltd. | Flat type fluorescent lamp |
| CN104100933A (en) * | 2013-04-04 | 2014-10-15 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device and production method thereof as well as related light-emitting device |
| JP2014207436A (en) * | 2013-03-18 | 2014-10-30 | 日本碍子株式会社 | Wavelength converter |
| CN104713035A (en) * | 2015-02-03 | 2015-06-17 | 深圳市光峰光电技术有限公司 | Wavelength converting device, manufacturing method thereof and light-emitting device |
| CN105278225A (en) * | 2014-07-21 | 2016-01-27 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device, manufacture method thereof, correlative light-emitting device, and projection system |
| CN105693108A (en) * | 2016-01-13 | 2016-06-22 | 南京大学 | Preparation and application of reflecting type fluorescent glass light conversion assembly |
| CN105737103A (en) * | 2014-12-10 | 2016-07-06 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device, relevant fluorescent color wheel and relevant projection device |
| CN107631272A (en) * | 2016-07-13 | 2018-01-26 | 深圳市光峰光电技术有限公司 | A kind of Wavelength converter and preparation method thereof |
| CN108105605A (en) * | 2017-12-01 | 2018-06-01 | 厦门大学 | A kind of light tiles based on transparent base manufacture and preparation method thereof |
| CN108870119A (en) * | 2017-05-12 | 2018-11-23 | 深圳市光峰光电技术有限公司 | Wavelength converter and preparation method thereof, laser fluorescence conversion hysteria light source |
-
2019
- 2019-01-23 CN CN201910062607.5A patent/CN109703120B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020070660A1 (en) * | 2000-12-07 | 2002-06-13 | Lg. Philips Lcd Co., Ltd. | Flat type fluorescent lamp |
| JP2014207436A (en) * | 2013-03-18 | 2014-10-30 | 日本碍子株式会社 | Wavelength converter |
| CN104100933A (en) * | 2013-04-04 | 2014-10-15 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device and production method thereof as well as related light-emitting device |
| CN105278225A (en) * | 2014-07-21 | 2016-01-27 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device, manufacture method thereof, correlative light-emitting device, and projection system |
| CN105737103A (en) * | 2014-12-10 | 2016-07-06 | 深圳市绎立锐光科技开发有限公司 | Wavelength conversion device, relevant fluorescent color wheel and relevant projection device |
| CN104713035A (en) * | 2015-02-03 | 2015-06-17 | 深圳市光峰光电技术有限公司 | Wavelength converting device, manufacturing method thereof and light-emitting device |
| CN105693108A (en) * | 2016-01-13 | 2016-06-22 | 南京大学 | Preparation and application of reflecting type fluorescent glass light conversion assembly |
| CN107631272A (en) * | 2016-07-13 | 2018-01-26 | 深圳市光峰光电技术有限公司 | A kind of Wavelength converter and preparation method thereof |
| CN108870119A (en) * | 2017-05-12 | 2018-11-23 | 深圳市光峰光电技术有限公司 | Wavelength converter and preparation method thereof, laser fluorescence conversion hysteria light source |
| CN108105605A (en) * | 2017-12-01 | 2018-06-01 | 厦门大学 | A kind of light tiles based on transparent base manufacture and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112321155A (en) * | 2020-11-06 | 2021-02-05 | 焦作市吉成磁电有限公司 | Laser lighting assembly and method of manufacturing the same |
| CN112321155B (en) * | 2020-11-06 | 2022-11-25 | 焦作市吉成磁电有限公司 | Laser lighting assembly and method of manufacturing the same |
| CN113251326A (en) * | 2021-06-04 | 2021-08-13 | 厦门大学 | Fluorescence conversion device for realizing high-quality warm white laser illumination light source |
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|---|---|
| CN109703120B (en) | 2020-09-18 |
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