CN208507721U - Wavelength convert component and Wavelength changing element and the light emitting device for using them - Google Patents

Wavelength convert component and Wavelength changing element and the light emitting device for using them Download PDF

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Publication number
CN208507721U
CN208507721U CN201820515641.4U CN201820515641U CN208507721U CN 208507721 U CN208507721 U CN 208507721U CN 201820515641 U CN201820515641 U CN 201820515641U CN 208507721 U CN208507721 U CN 208507721U
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convert component
wavelength convert
wavelength
particle
inorganic phosphor
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古山忠仁
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Nippon Electric Glass Co Ltd
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Nippon Electric Glass Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/022—Mountings; Housings
    • H01S5/0239—Combinations of electrical or optical elements
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/64—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing aluminium
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Led Device Packages (AREA)
  • Luminescent Compositions (AREA)
  • Optical Filters (AREA)
  • Semiconductor Lasers (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The utility model be able to suppress when the light of irradiation great power LED or LD are provided through when luminous intensity decline and constituent material fusing wavelength convert component and Wavelength changing element and use its light emitting device.The wavelength convert component contains inorganic phosphor particle and magnesium oxide particle, which is characterized in that: there are magnesium oxide particles between inorganic phosphor particle, and inorganic phosphor particle is bonded by magnesium oxide particle.

Description

Wavelength convert component and Wavelength changing element and the light emitting device for using them
Technical field
The utility model relates to by light emitting diode (LED:Light Emitting Diode) or laser diode (LD: Laser Diode) etc. the light of sendings wavelength convert at other wavelength wavelength convert component and Wavelength changing element and Use their light emitting device.
Background technique
In recent years, it as substitution fluorescent lamp or the next-generation light emitting device of incandescent lamp, from low power consumption, small-size light-weight, is easy From the viewpoint of carrying out light quantity adjusting, the light emitting device for using LED or LD is increasingly paid close attention to.As such next-generation luminous One example of device, such as Patent Document 1 discloses be configured with to absorb from LED's on the LED for projecting blue light A part of light and be converted into sodium yellow wavelength convert component light emitting device.The light emitting device is issued to be projected as from LED Blue light with from wavelength convert component project sodium yellow synthesis light white light.
As wavelength convert component, the component that inorganic phosphor particle is dispersed in resinous substrates has been used at present.So And when using the wavelength convert component, there are problems that resinous substrates change colour or deform due to the light from LED.Therefore, it mentions Case dispersion in the glass matrix for replacing resin is fixed with the complete wavelength convert component being made of inoganic solids of fluorophor (for example, referring to patent document 2 and 3).There is the wavelength convert component glass matrix as base material to be not easy because from LED's Heat or irradiation light and deteriorate, do not allow to be also easy to produce discoloration or deform the feature of such problems.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2000-208815 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2003-258308 bulletin
Patent document 3: No. 4895541 bulletins of Japanese Patent No.
Summary of the invention
Problems to be solved by the invention
In recent years, for the purpose of the high-power of light emitting device, the output of LED or LD as light source constantly rise.With It, the heat as caused by the heat of light source or the fluorophor of irradiation exciting light, the temperature of wavelength convert component rises, as a result, There are luminous intensities timely to decline (temperature quenching) such problems.In addition, according to circumstances, there are the temperature of wavelength convert component Degree rises the danger for becoming significant constituent material (glass matrix etc.) fusing.
In view of the above circumstances, the purpose of this utility model is that: provide irradiation great power LED or LD light when be able to suppress Through when luminous intensity decline and constituent material fusing wavelength convert component and Wavelength changing element and use they Light emitting device.
The method used for solving the problem
The wavelength convert component of the utility model contains inorganic phosphor particle and magnesium oxide particle, the wavelength convert component Be characterized in that: there are magnesium oxide particles between inorganic phosphor particle, and inorganic phosphor particle passes through magnesia Particle is bonded.
In the wavelength convert component of the utility model, there are magnesium oxide particles between inorganic phosphor particle.Its In, magnesium oxide particle is compared with glass etc., excellent thermal conductivity, therefore, can be efficient by heat caused by inorganic phosphor particle Ground is discharged to outside.It is suppressed as a result, the temperature of wavelength convert component rises, temperature quenching is less likely to occur.In addition, oxidation The heat resistance of magnesium granules is also excellent, therefore, it may have though irradiation great power LED or LD light when, be also not easy fusing or The advantages of being able to suppress the generation of undesirable condition as fire check caused by rising because of temperature sharply.Furthermore, Magnesium oxide particle also has the advantage that capable of being sintered at low temperature compared with the ceramic particles such as aluminium oxide, zirconium oxide.Cause This, firing temperature when making wavelength convert component can also be lower, and be able to suppress inorganic phosphor powder when firing Deterioration.
The wavelength convert component of the utility model contains inorganic phosphor particle 3~80% and oxidation preferably in terms of quality % Magnesium granules 20~97%.
In the wavelength convert component of the utility model, preferably the average grain diameter of magnesium oxide particle is 0.01~10 μm.This Sample, the compactness of wavelength convert component improve, thermal conducting path easy to form, therefore, can will be produced by inorganic phosphor particle Heat further efficiently discharge to outside.
In the wavelength convert component of the utility model, preferably the purity of magnesium oxide particle is 99% or more.In such manner, it is possible to Magnesium oxide particle is sintered at relatively low temperatures.
In the wavelength convert component of the utility model, preferably the average grain diameter of inorganic phosphor particle is 1~50 μm.
In the wavelength convert component of the utility model, preferably inorganic phosphor particle includes the oxygen with garnet structure Compound fluorophor.Therefore the excellent heat resistance of oxide phosphor with garnet structure irradiates great power LED or LD Light time is able to suppress the deterioration of inorganic phosphor particle itself.
In the wavelength convert component of the utility model, preferably the average grain diameter of magnesium oxide particle is relative to inorganic phosphor The ratio of the average grain diameter of particle is 0.5 or less.In this way, the compactness of wavelength convert component improves, thermal conducting path easy to form, because This, further can efficiently discharge heat caused by inorganic phosphor particle to outside.
The Wavelength changing element of the utility model is characterized in that, comprising above-mentioned wavelength convert component and having to be higher than Laminated body made of the heat dissipation layer laminate of the thermal coefficient of wavelength convert component.In such manner, it is possible to by produced by wavelength convert component Heat be transferred to heat dissipating layer, therefore, be easy inhibit wavelength convert component temperature rise.
In the Wavelength changing element of the utility model, the layer comprising light transparent ceramic can be used as heat dissipating layer.
In the Wavelength changing element of the utility model, as light transparent ceramic, can be used selected from alumina series ceramics, Aluminium nitride system ceramics, carbonization silicon systems ceramics, boron nitride system ceramics, magnesia system ceramics, titanium oxide base ceramics, niobium oxide system pottery It is at least one kind of in porcelain, Zinc oxide ceramics and yttrium oxide system ceramics.
The light emitting device of the utility model is characterized in that, with above-mentioned wavelength convert component and to wavelength convert component Irradiate the light source of exciting light.
The light emitting device of the utility model is characterized in that, with above-mentioned Wavelength changing element and to Wavelength changing element Irradiate the light source of exciting light.
In the light emitting device of the utility model, preferred light source is laser diode.The wavelength conversion section of the utility model The heat resistance and thermal diffusivity of part and Wavelength changing element are excellent, therefore, use the laser diode of bigger power as light When source, it is easy to enjoy The effect of invention.
Invention effect
Using the utility model, be able to suppress when being capable of providing the light of irradiation great power LED or LD through when luminous intensity Decline and constituent material fusing wavelength convert component and Wavelength changing element and use their light emitting device.
Detailed description of the invention
Fig. 1 is the schematic section for indicating an embodiment of wavelength convert component of the utility model.
Fig. 2 is the schematic section for indicating an embodiment of Wavelength changing element of the utility model.
Fig. 3 is the diagrammatic side view for indicating an embodiment of light emitting device of the utility model.
Symbol description
1 inorganic phosphor particle
2 magnesium oxide particles
3 heat dissipating layers
4 light sources
10 wavelength convert components
20 Wavelength changing elements
30 light emitting devices
Specific embodiment
Hereinafter, being illustrated using attached drawing to the embodiments of the present invention.But the following embodiments and the accompanying drawings is example Show, the utility model is not limited to the following embodiments and the accompanying drawings.
(wavelength convert component)
Fig. 1 is the schematic section for indicating an embodiment of wavelength convert component of the utility model.Wavelength convert Component 10 contains inorganic phosphor particle 1 and magnesium oxide particle 2.Wherein, there are magnesia between inorganic phosphor particle 1 Particle 2, inorganic phosphor particle 1 are bonded by magnesium oxide particle 2.
As long as inorganic phosphor particle 1 projects the substance of fluorescence by the incidence of exciting light, just it is not particularly limited. As the concrete example of inorganic phosphor particle 1, such as can to enumerate oxide phosphor, nitride phosphor, nitrogen oxides glimmering Body of light, chloride fluorophor, oxychloride fluorophor, sulphide phosphor, oxysulfide fluorophor, halide fluorophor, sulphur Belong to compound fluorophor, chlorate MClO 3 fluorescent substance, halogen-phosphate compound fluorophor etc..These can be used alone, or by two or more It is used in mixed way.In addition, as described below, wavelength convert component 10 passes through the mixing to inorganic phosphor particle 1 and magnesium oxide particle 2 Particle is sintered and makes, therefore, preferably heat-resisting in order to which heat deterioration does not occur in sintering as inorganic phosphor particle 1 The excellent substance of property.From the viewpoint, inorganic phosphor particle 1 be preferably oxide phosphor, particularly have stone Oxide phosphor (the Y of garnet structure3Al5O12: Ce3+、Lu3Al5O12: Ce3+Deng).
Average grain diameter (the D of inorganic phosphor particle 150) it is preferably 1~50 μm, particularly preferably 5~25 μm.Inorganic fluorescent When the average grain diameter of body particle 1 is too small, luminous intensity is easy decline.On the other hand, the average grain diameter mistake of inorganic phosphor particle 1 When big, there are luminescent colors to become non-uniform tendency.
Average grain diameter (the D of magnesium oxide particle 250) it is preferably 0.01~10 μm, it is particularly preferably 0.05~5 μm, especially excellent It is selected as 0.08~1 μm.By making average grain diameter be in above range, can at relatively low temperatures to magnesium oxide particle 2 into Row sintering.
The purity of magnesium oxide particle 2 is preferably 99% or more, 99.9% or more, particularly preferably 99.98% or more.Pass through So that the purity of magnesium oxide particle 2 is in above range, magnesium oxide particle 2 can be sintered at relatively low temperatures.
As described above, sintering temperature can be made to be lower by the average grain diameter of appropriate adjustment magnesium oxide particle 2, purity.Tool For body, though at a temperature of 1000~1400 DEG C, 1020~1250 DEG C and 1050~relatively low less than 1100 DEG C into Row is fired, and can also sinter densification into.
As the production method of magnesium oxide particle 2, spark in synthetic method and water using gas phase oxidation can be enumerated Electric discharge etc..Wherein, the magnesium oxide particle of high-purity is also easy to get using the synthetic method of gas phase oxidation, therefore preferably. In addition, the commercially available product as magnesium oxide particle, can be used 50A, 2000A etc. of UBEMATERIALS manufacture.
In addition, the average grain diameter of magnesium oxide particle 2 is preferably relative to the ratio of the average grain diameter of inorganic phosphor particle 1 0.5 or less, 0.2 or less, 0.1 hereinafter, particularly preferably 0.05 or less.In this way, the compactness of wavelength convert component 10 improves, hold Therefore easily forming thermal conducting path further can efficiently discharge heat caused by inorganic phosphor particle 1 to outside.
The ratio of inorganic phosphor particle 1 and magnesium oxide particle 2 in wavelength convert component 10 is in terms of quality %, preferably Inorganic phosphor particle 1 be 3~80%, magnesium oxide particle 2 be 20~97%, more preferably inorganic phosphor particle 1 be 5~ 75%, magnesium oxide particle 2 is 25~95%, and further preferably inorganic phosphor particle 1 is that 8~70%, magnesium oxide particle 2 is 30~92%.When the content of inorganic phosphor particle 1 very few (content of magnesium oxide particle 2 is excessive), wavelength convert component 10 Luminous intensity is easy decline.On the other hand, when content excessive (content of magnesium oxide particle 2 is very few) of inorganic phosphor particle 1, In wavelength convert component 10, it is not easy to form the thermal conducting path being made of magnesium oxide particle 2, therefore, inorganic phosphor particle 1 Generated heat is not easy to be released into outside.In addition, the caking property of inorganic phosphor particle 1 declines, wavelength convert component 10 Mechanical strength be easy decline.
The shape of wavelength convert component 10 is not particularly limited, usually plate (rectangular plate-like, discoid etc.).It is preferred that suitable When the thickness of selection wavelength conversion section part 10, make it possible to obtain the light of the tone as target.Specifically, wavelength conversion section The thickness of part 10 is preferably 2mm or less, 1mm hereinafter, particularly preferably 0.8mm or less.But the thickness of wavelength convert component 10 When too small, mechanical strength is easy decline, it is therefore preferable that being 0.03mm or more.
By will be mixed with defined ratio raw material powder made of inorganic phosphor particle 1 and magnesium oxide particle 2 in advance at It is fired after type, wavelength convert component 10 can be manufactured.Wherein, bonding agent and solvent can also be being added into raw material powder Equal organic principles and after forming paste, be fired.In this way, using the methods of raw cook molding, desired shape easy to form Preform.At this point, after removing organic principle in degreasing process (600 DEG C or so) first, in the sintering of magnesium oxide particle 2 At a temperature of be fired, be thus easy to get fine and close sintered body.Alternatively, it is also possible to after primary fire with firing temperature ± 150 DEG C of implementation HIP (hot isostatic pressing) processing.Thereby, it is possible to shrink the emptying aperture in wavelength convert component 10 and disappear, and can Inhibit the scattering of superfluous light.
As bonding agent, poly (propylene carbonate), polybutyl methacrylate, polyvinyl butyral, poly- first can be used Base methyl acrylate, polyethyl methacrylate, ethyl cellulose, nitrocellulose, polyestercarbonate etc., can be by these lists Solely or it is used in mixed way.
As solvent, can by terpineol, isoamyl acetate, toluene, methyl ethyl ketone, butyl carbitol acetate, 2, 2,4- trimethyl -1,3- pentanediol mono isobutyrate etc. is used alone or as a mixture.
In cream, sintering aid can also be contained.As sintering aid, magnesium phosphate, basic zirconium phosphate, oxidation can be used for example The amorphous oxide matter powder of crystalline powder, silicic acid system and the phosphate of manganese, barium monoxide, yttrium oxide, silica etc. etc..
(Wavelength changing element)
Fig. 2 is the schematic section for indicating an embodiment of Wavelength changing element of the utility model.Wavelength convert Element 20 as by wavelength convert component 10 and be higher than wavelength convert component 10 thermal coefficient 3 lamination of heat dissipating layer made of Laminated body is constituted.In the present embodiment, the heat generated due to irradiating exciting light to wavelength convert component 10 passes through heat dissipating layer 3 And it is efficiently discharged to outside.Therefore, the temperature for being able to suppress wavelength convert component 10 excessively rises.
Heat dissipating layer 3 has the thermal coefficient higher than wavelength convert component 10.Specifically, the thermal coefficient of heat dissipating layer 3 is excellent It is selected as 5W/mK or more, 10W/mK or more, particularly preferably 20W/mK or more.
The thickness of heat dissipating layer 3 is preferably 0.05~1mm, 0.07~0.8mm, particularly preferably 0.1~0.5mm.Heat dissipating layer 3 Thickness it is too small when, there are mechanical strength decline tendency.On the other hand, when the thickness of heat dissipating layer 3 is excessive, there are wavelength converts The tendency of element enlargement.
As heat dissipating layer 3, the layer comprising light transparent ceramic can be used.In such manner, it is possible to exciting light or fluorescence are penetrated, because This, can use as the Wavelength changing element of transmission-type.Heat dissipating layer comprising light transparent ceramic in 400~800nm of wavelength The full light transmittance at place is preferably 10% or more, 20% or more, 30% or more, 40%, particularly preferably 50% or more.
As light transparent ceramic, can be used selected from alumina series ceramics, aluminium nitride system ceramics, carbonization silicon systems ceramics, nitrogen Change boron system ceramics, magnesia system ceramics, titanium oxide base ceramics, niobium oxide system ceramics, Zinc oxide ceramics and yttrium oxide system ceramics In it is at least one kind of.
The Wavelength changing element 20 of present embodiment is only formed with heat dissipating layer 3 in wavelength convert component 10 interarea, But heat dissipating layer 3 can also be formed in two interareas of wavelength convert component 10.In such manner, it is possible to by produced by wavelength convert component 10 Heat further efficiently discharge to outside.Alternatively, it is also possible to being to form wavelength convert component 10 with 3 alternative stacked of heat dissipating layer 4 layers or more of laminated body.
In addition, other than being the layer comprising light transparent ceramic, can also be comprising Cu, Al, Ag etc. as heat dissipating layer 3 The layer of metal.In such manner, it is possible to which the Wavelength changing element as reflection-type uses.
(light emitting device)
Fig. 3 is the diagrammatic side view for indicating an embodiment of light emitting device of the utility model.Present embodiment institute The light emitting device being related to is the light emitting device using the wavelength convert component of transmission-type.As shown in figure 3, light emitting device 30 has wave Long converting member 10 and light source 4.Using wavelength convert component 10, the exciting light L0 projected from light source 4 is wavelength-converted into glimmering Light L1, the wavelength of fluorescence L1 are longer than exciting light L0.In addition, a part of exciting light L0 penetrates wavelength convert component 10.Therefore, from The synthesis light L2 of the injection of wavelength convert component 10 exciting light L0 and fluorescence L1.For example, exciting light L0 is blue light and fluorescence L1 is When sodium yellow, the synthesis light L2 of white can be obtained.Alternatively, it is also possible to use above-mentioned illustrated 20 generation of Wavelength changing element For wavelength convert component 10.
As light source 4, LED and LD can be enumerated.From the viewpoint of the luminous intensity for improving light emitting device 30, light source 4 It is preferable to use the LD that can project high-intensitive light.

Claims (13)

1. a kind of wavelength convert component contains inorganic phosphor particle and magnesium oxide particle, the feature of the wavelength convert component It is:
There are magnesium oxide particles between inorganic phosphor particle, and inorganic phosphor particle is glued by magnesium oxide particle Knot.
2. wavelength convert component as described in claim 1, it is characterised in that:
Contain inorganic phosphor particle 3~80% and magnesium oxide particle 20~97% in terms of quality %.
3. wavelength convert component as claimed in claim 1 or 2, it is characterised in that:
The average grain diameter of magnesium oxide particle is 0.01~10 μm.
4. wavelength convert component as claimed in claim 1 or 2, it is characterised in that:
The purity of magnesium oxide particle is 99% or more.
5. wavelength convert component as claimed in claim 1 or 2, it is characterised in that:
The average grain diameter of inorganic phosphor particle is 1~50 μm.
6. wavelength convert component as claimed in claim 1 or 2, it is characterised in that:
Inorganic phosphor particle includes the oxide phosphor with garnet structure.
7. wavelength convert component as claimed in claim 1 or 2, it is characterised in that:
The average grain diameter of magnesium oxide particle is 0.5 or less relative to the ratio of the average grain diameter of inorganic phosphor particle.
8. a kind of Wavelength changing element, it is characterised in that:
Comprising by wavelength convert component according to any one of claims 1 to 7 and with thermally conductive higher than wavelength convert component Laminated body made of the heat dissipation layer laminate of coefficient.
9. Wavelength changing element as claimed in claim 8, it is characterised in that:
Heat dissipating layer includes light transparent ceramic.
10. Wavelength changing element as claimed in claim 9, it is characterised in that:
Light transparent ceramic is selected from alumina series ceramics, aluminium nitride system ceramics, carbonization silicon systems ceramics, boron nitride system ceramics, oxidation It is at least one kind of in magnesium system ceramics, titanium oxide base ceramics, niobium oxide system ceramics, Zinc oxide ceramics and yttrium oxide system ceramics.
11. a kind of light emitting device comprising:
Wavelength convert component according to any one of claims 1 to 7 and the light source that exciting light is irradiated to wavelength convert component.
12. a kind of light emitting device comprising:
Wavelength changing element described in any one of claim 8~10 and the light source to Wavelength changing element irradiation exciting light.
13. the light emitting device as described in claim 11 or 12, it is characterised in that:
Light source is laser diode.
CN201820515641.4U 2017-04-13 2018-04-12 Wavelength convert component and Wavelength changing element and the light emitting device for using them Active CN208507721U (en)

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JP6497544B2 (en) * 2015-01-28 2019-04-10 日本電気硝子株式会社 Crystallized glass phosphor and wavelength conversion member using the same
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CN108735877A (en) 2018-11-02

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