CN108054077A - One kind is used for the electrodeless ceramic bulbs of microwave plasma - Google Patents
One kind is used for the electrodeless ceramic bulbs of microwave plasma Download PDFInfo
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- CN108054077A CN108054077A CN201810018971.7A CN201810018971A CN108054077A CN 108054077 A CN108054077 A CN 108054077A CN 201810018971 A CN201810018971 A CN 201810018971A CN 108054077 A CN108054077 A CN 108054077A
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- cavity
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- foam
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- ceramics pole
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- 239000000919 ceramic Substances 0.000 title claims abstract description 80
- 239000006260 foam Substances 0.000 claims abstract description 43
- 239000000126 substance Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 23
- 229910052751 metal Inorganic materials 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 150000004820 halides Chemical class 0.000 claims description 9
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 6
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 229910000679 solder Inorganic materials 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 229910052734 helium Inorganic materials 0.000 claims description 5
- 239000001307 helium Substances 0.000 claims description 5
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052743 krypton Inorganic materials 0.000 claims description 5
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052754 neon Inorganic materials 0.000 claims description 5
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 229910052724 xenon Inorganic materials 0.000 claims description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000006261 foam material Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- ICIWUVCWSCSTAQ-UHFFFAOYSA-M iodate Chemical compound [O-]I(=O)=O ICIWUVCWSCSTAQ-UHFFFAOYSA-M 0.000 claims 1
- 238000007539 photo-oxidation reaction Methods 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 241001465382 Physalis alkekengi Species 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 238000009877 rendering Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 2
- 210000002381 plasma Anatomy 0.000 description 22
- 238000010586 diagram Methods 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000011521 glass Substances 0.000 description 5
- 239000006187 pill Substances 0.000 description 5
- 230000005684 electric field Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052574 oxide ceramic Inorganic materials 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- JKFYKCYQEWQPTM-UHFFFAOYSA-N 2-azaniumyl-2-(4-fluorophenyl)acetate Chemical compound OC(=O)C(N)C1=CC=C(F)C=C1 JKFYKCYQEWQPTM-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 240000007817 Olea europaea Species 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 229910021612 Silver iodide Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- FHNFHKCVQCLJFQ-NJFSPNSNSA-N Xenon-133 Chemical compound [133Xe] FHNFHKCVQCLJFQ-NJFSPNSNSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- SRVXDMYFQIODQI-UHFFFAOYSA-K gallium(iii) bromide Chemical compound Br[Ga](Br)Br SRVXDMYFQIODQI-UHFFFAOYSA-K 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229940045105 silver iodide Drugs 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- 229940106670 xenon-133 Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J65/00—Lamps without any electrode inside the vessel; Lamps with at least one main electrode outside the vessel
- H01J65/04—Lamps in which a gas filling is excited to luminesce by an external electromagnetic field or by external corpuscular radiation, e.g. for indicating plasma display panels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Electromagnetism (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
The invention discloses one kind to be used for the electrodeless ceramic bulbs of microwave plasma, including foam made of light transmissive material, cavity is coaxially provided in foam, axially single outer end or two outer ends are coaxially connected with ceramics pole to foam respectively, through hole is coaxially provided in one of ceramics pole, stopper rod is coaxially provided in through hole, by stopper rod inner end closed cavity, luminescent substance and rare gas are filled in the cavity of closing.The present invention has higher operating temperature and heat dissipation characteristics, substantially increases the luminous efficiency of whole lamps and lanterns, can improve the optical parameters such as colour rendering index and colour temperature on a large scale, and simple in structure, small, power is big, at low cost, convenient for producing in enormous quantities.
Description
Technical field
The present invention relates to microwave plasma lighting areas, are specifically that one kind is used for the electrodeless ceramic lamp of microwave plasma
Bubble.
Background technology
Current existing conventional illumination sources are all there are electrode structure, after working long hours, electrode and glass it is close
It is very easy to generate gas leak phenomenon at envelope, results in the shortening of bulb life.In addition, electrode material is after long-time hot operation
It can volatilize, be attached to after volatilization in bulb inner wall, bulb inner wall can be made to black, influence the translucency of light bulb, cause the light of light bulb
It declines larger, luminous efficiency substantially reduces.Simultaneously as the presence of electrode, in light bulb the substance of filling just must cannot and electrode
It reacts, which limits the selection that element is filled in light bulb, so the colour rendering index of conventional illumination sources, light efficiency etc. are not
There is larger room for promotion.
Very fast with the development of LED, the theoretical service life, LED can only be answered mostly up to 30,000 hours, but to so far
For the indoor or smaller place of other power.In high-power illumination field, since LED does not generate infrared and ultraviolet light,
Up to more than 60-70% thermal energy needs to solve by radiator, and the temperature rise that these heats are brought can cause the service life of LED
Shortening.
The electrodeless light-transmittance ceramics light bulb of microwave plasma since there is no electrode structure, has that long lifespan, light decay be small, light
The advantages that effect is high, adjustable color.Due to the quartz glass of the material generally use high-purity of blister, softening temperature than relatively low,
Light bulb operating temperature is not easy excessively high, affects the further performance of its performance.Quality light source is further improved if necessary, is just needed
The tolerable temperature of light bulb is improved, for problem of the prior art, light-transmittance ceramics may be employed to substitute silica glass material, this
The design of sample can greatly improve the key parameters such as luminous efficiency, the colour temperature and development index of light bulb, and the purpose of the present invention is carry
For a kind of luminous efficiency height, the electric arc tube of ceramic electrodeless lamp of longer life expectancy.
The content of the invention is used for the electrodeless ceramic bulbs of microwave plasma the object of the present invention is to provide a kind of, existing to solve
The problem of with the presence of technology.
In order to achieve the above object, the technical solution adopted in the present invention is：
One kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：Including foam made of light transmissive material, in foam
It is coaxially provided with cylindrical or ellipse cavity, the axial both ends of cavity are hemispherical or planar shaped, the axial single outer end of foam
Or two outer ends are coaxially connected with ceramics pole respectively, and through hole is coaxially provided in one of ceramics pole, through hole inner end is connected to bubble
The cavity of body, through hole outer end are located at the ceramics pole outer end face at place, stopper rod are coaxially provided in the through hole of ceramics pole, and stopper rod inner end is prolonged
It extends through hole inner end and is flushed with the cavity end where through hole inner end, by stopper rod inner end closed cavity, filled out in the cavity of closing
Filled with luminescent substance and rare gas.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：Foam is made pottery by transparent aluminum oxide
Ceramic material is made.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：Through hole in the ceramics pole
For bellmouth wide outside and narrow inside or it is vertical cyclindrical shape hole, corresponding stopper rod is taper or vertical cyclindrical shape.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：The luminescent substance is non-gold
Belong to the halide of element or one or more metallic element, when for halide when preferred bromide or iodide, luminescent substance
Can be that alkalescence is neutral or acid.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：The luminescent substance is shaped to
Graininess.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：The rare gas be helium,
One or more combinations in neon, argon gas, Krypton, xenon.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：The ceramics pole and foam material
Matter is identical, and the coefficient of expansion of stopper rod is consistent with the ceramics pole coefficient of expansion.
Described one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：Outside the through hole of the ceramics pole
End is designed as expanding mouth, and stopper rod outer end is connected with the limit base that /V cooperation is formed with expanding mouth inner end, using expanding mouth as weldering
Access slot, welding groove is interior to fill solder on limit base, by solder the limit base of stopper rod is made to be welded in expanding mouth.
The electrodeless ceramic bulbs of microwave plasma are used for ionizing the gas generation plasma inside blister using microwave electric field
Body forms highdensity luminescence of plasma by internal interionic collision and energy transport.Wherein, microwave frequency is higher,
The luminescence of plasma efficiency that it is excited is higher.
For there was only inert gas and metal halogen without metal electrode, inside inside the electrodeless ceramic bulbs of microwave plasma
Compound or bromide.
The present invention has the following advantages：（1）Due to using ceramic material, there are higher operating temperature and heat dissipation characteristics,
Thus light bulb can be operated in 10000More than C degree, this is higher by 300 than quartz bulb shell0C degree has better heat dissipation characteristics, body
Product is smaller than the quartz bulb shell of similary power grade by about 30%, and without the softening problem of glass bulb, these advantages can extend greatly
Service life when light bulb even 50000 is small.（2）Ceramic bulb shell can cause than the smaller that quartz bulb shell is done, the characteristic of point light source
The light distribution of lamps and lanterns is easy, so as to substantially increase the luminous efficiency of whole lamps and lanterns.（3）Ceramic material has more steady than quartz material
Fixed chemical property, it may be considered that fill more luminescent substances, therefore, the light such as colour rendering index and colour temperature can be improved on a large scale
Parameter.（4）Simple in structure, small, power is big, at low cost, convenient for producing in enormous quantities.
Description of the drawings
Structure diagram when Fig. 1 is connected with ceramics pole for foam both ends of the present invention.
Fig. 2 is the sectional view of Fig. 1.
Structure diagram when Fig. 3 is connected with ceramics pole for foam of the present invention is single-ended.
Fig. 4 is the sectional view of Fig. 3.
Fig. 5 is one foam of the embodiment of the present invention and ceramics pole structure diagram.
Fig. 6 is two foam of the embodiment of the present invention and ceramics pole structure diagram.
Fig. 7 is three foam of the embodiment of the present invention and ceramics pole structure diagram.
Fig. 8 is four foam of the embodiment of the present invention and ceramics pole structure diagram.
Fig. 9 is five foam of the embodiment of the present invention and ceramics pole structure diagram.
Figure 10 is six foam of the embodiment of the present invention and ceramics pole structure diagram.
Specific embodiment
As Figure 1-Figure 4, it is a kind of for the electrodeless ceramic bulbs of microwave plasma, including foam made of light transmissive material
1, it is coaxially provided with cylindrical or ellipse cavity 2 in foam 1, the axial both ends of cavity 2 are hemispherical or planar shaped, foam 1
Axial single outer end is coaxially connected with ceramics pole 6 or two outer ends are coaxially connected with ceramics pole 5,6, one of ceramics pole respectively
Through hole is coaxially provided in 6, through hole inner end is connected to the cavity 2 of foam, and through hole outer end is located at 6 outer end face of ceramics pole at place, pottery
Be coaxially provided in the through hole of porcelain knob 6 plug 7 bars, 7 inner end of stopper rod extend to through hole inner end and with 2 end of cavity where through hole inner end
It flushes, by 7 inner end closed cavity of stopper rod, luminescent substance 3 and rare gas 4 is filled in the cavity of closing.
Foam 1 is made of transparent aluminum oxide ceramic material.
Through hole in ceramics pole 6 is bellmouth wide outside and narrow inside or be vertical cyclindrical shape hole, corresponding stopper rod 7 be taper or
Vertical cyclindrical shape.
Luminescent substance 3 is nonmetalloid or the halide of one or more metallic element, when for halide when it is preferred
Bromide or iodide, luminescent substance can be that alkalescence is neutral or acid.
Luminescent substance 3 is shaped to graininess.
Rare gas 4 is one or more combinations in helium, neon, argon gas, Krypton, xenon.
Ceramics pole 6 is identical with 1 material of foam, and the coefficient of expansion of stopper rod 7 is consistent with 6 coefficient of expansion of ceramics pole.
The through hole outer end of ceramics pole 6 is designed as expanding mouth 8, and 7 outer end of stopper rod is connected with matches somebody with somebody with the formation /V of expanding 8 inner end of mouth
The limit base 9 of conjunction using expanding mouth 8 as welding groove, fills solder on limit base 9 in welding groove, makes stopper rod 7 by solder
Limit base 9 be welded in expanding mouth 8.
Embodiment one
As shown in figure 5,1 inner chamber body 2 of foam is cylinder in the present invention, the axial both ends of cavity 2 are planar shaped, and foam both ends are divided
Not Lian Jie ceramics pole 5,6, the in vivo vertical cyclindrical shape through hole of chamber is connected in one of ceramics pole 6, stopper rod 7 is equipped in through hole.
Embodiment two
As shown in fig. 6,1 inner chamber body 2 of foam is ellipse in the present invention, the axial both ends of cavity 2 are hemispherical, 1 both ends of foam
Ceramics pole 5,6 is connected respectively, has the vertical cyclindrical shape through hole being connected in cavity 1 in one of ceramics pole 6, stopper rod is equipped in through hole
7。
Embodiment three
As shown in fig. 7,1 inner chamber body 2 of foam is cylinder in the present invention, the axial both ends of cavity 2 are planar shaped, 1 both ends of foam
Ceramics pole 5,6 is connected respectively, has the conical through-hole being connected in cavity 1 in one of ceramics pole 6, stopper rod 7 is equipped in through hole.
Example IV
As shown in figure 8,1 inner chamber body 2 of foam is ellipse in the present invention, the axial both ends of cavity 2 are hemispherical, 1 both ends of foam
Ceramics pole 5,6 is connected respectively, has the conical through-hole being connected in cavity 1 in one of ceramics pole 6, stopper rod 7 is equipped in through hole.
Embodiment five
As shown in figure 9,1 inner chamber body 2 of foam is cylinder in the present invention, the axial both ends of cavity 2 are planar shaped, and foam 1 is single-ended
Ceramics pole 6 is connected, has the conical through-hole being connected in cavity 1 in ceramics pole 6, stopper rod 7 is equipped in through hole.
Embodiment six
As shown in Figure 10,1 inner chamber body 2 of foam is cylinder in the present invention, and the axial both ends of cavity 2 are planar shaped, and foam 1 is single-ended
Ceramics pole 6 is connected, has the vertical cyclindrical shape through hole being connected in cavity 1 in ceramics pole 6, stopper rod 7 is equipped in through hole.
The present invention includes the interior transmissive bulb for having closed cavity, and the interlude of blister internal cavity 2 is in cylinder or olive shape
Hollow structure, the both ends of foam internal cavity 2 are hemispherical or plane hollow structure, and are provided with shiner in foam internal cavity 2
Matter 3 is also filled with rare gas 4 in foam internal cavity 2.
The steep that wall 1 of foam uses light transmissive ceramic material.
Luminescent substance 3 is made of the halide of one or more metallic elements, preferably the bromide or iodine of metallic element
Compound.
Luminescent substance 3 is shaped to pill shape or graininess.
Rare gas is one or more combinations in helium, neon, argon, krypton, xenon-133 gas.
Foam unilateral side outer end or both sides outer end are connected with ceramics pole 5,6.
As shown in fig. 5-10, the electrodeless ceramic bulbs of plasma of the several embodiments of the present invention, steep that wall 1 is using light transmission
Alumina ceramic material completely encloses the gas in one section of cavity 2, and as demonstration, 2 inside of cavity sets shining for pill shape
Substance 3, as shown in figure 3, the interlude of bulb cavity 2 is cylindrical hollow configuration, both ends are hemisphere or planar shaped
Hollow structure.As main luminescent substance, luminescent substance 3 can be the nonmetalloids such as selenium, sulphur, tellurium and mercury, certainly, also may be used
With the halide of the one or more kinds of metallic elements of filling, to improve the characteristics of luminescence of light bulb, adjust the spectrum of light bulb and show
Colour index.In use, the halide of metallic element is typically chosen the bromide or iodide of metallic element, such as silver iodide,
Gallium bromide etc..In the making of lamp, luminescent substance 3 is loaded into graininess in the cavity 2 of quartz glass closing, when lamp is ignited
When, pill can flash to gas or plasma, and full of entire cavity, when lamp extinguishes, luminescent substance 3 becomes powdered attachment
In bulb inner wall.Rare gas is filled simultaneously in cavity 2, which is one kind in the gases such as helium, neon, argon, krypton, xenon
Or multiple combinations, protective gas when working as luminescent substance, and do not reacted with light-emitting element.Ceramics pole 5 and 6 and light bulb two
The ceramic bulb shell connection at end, installation when operation and light bulb during for light bulb gas sealing-in work.In the present embodiment, lamp
The outer diameter of mediate cylindrical is steeped for 10mm, length 10mm, wall thickness 1mm, in use, the radio-frequency power that the light bulb absorbs is
More than 200W.
The electrodeless ceramic bulbs embodiment sectional view of several microwave plasmas of the present invention is as shown in Fig. 2, Fig. 3 is its two kinds
The structure diagram of embodiment.Only comprising an elongated ceramic rod handle, the other end is hemispherical glass for one end of the example light bulb
Glass blister.Steep that wall 1 equally uses the alumina ceramic material of light transmission, and the gas in cavity 2 is completely enclosed, is set inside cavity 2
The luminescent substance 3 of pill shape is put, the interlude of bulb cavity 2 is cylinder or Olivary hollow structure, and both ends are hemisphere
Or planar shaped hollow structure.The pill of filling and one embodiment are identical in light bulb, and filling gas 4 is 100-400Torr's
When xenon or other inert gases, light bulb are subject to the microwave electric field to excite, similar solar spectrum is sent.
In above several embodiments, using the electric field that frequency generates for 300MHz to the RF energy between 4GHz, make
The hemispherical dome structure of its center or light bulb one end of the electric field in light bulb is concentrated around, the radio frequency alternating current of high intensity
Gas ionization in field breakdown cavity then excites luminescent substance electric discharge, forms the point light source of high brightness.Entire bulb is not
Including any metal electrode, without metal electrode and the leakage problem of glass sealed knot, the service life of light bulb is substantially prolonged, is subtracted
Small optical attenuation, meanwhile, the power of lamp is big, small, reduces the difficulty of production technology and the cost of lamp.
Claims (8)
1. one kind is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：Including foam made of light transmissive material, foam
Cylindrical or ellipse cavity is inside coaxially provided with, the axial both ends of cavity are hemispherical or planar shaped, and foam is axially single outer
End or two outer ends are coaxially connected with ceramics pole respectively, through hole are coaxially provided in one of ceramics pole, through hole inner end is connected to
The cavity of foam, through hole outer end are located at the ceramics pole outer end face at place, stopper rod, stopper rod inner end are coaxially provided in the through hole of ceramics pole
It extends to through hole inner end and is flushed with the cavity end where through hole inner end, by stopper rod inner end closed cavity, in the cavity of closing
Filled with luminescent substance and rare gas.
It is 2. according to claim 1 a kind of for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：Foam is by saturating
Photooxidation aluminium ceramic material is made.
It is 3. according to claim 1 a kind of for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：The ceramics
Through hole in column for bellmouth wide outside and narrow inside or is vertical cyclindrical shape hole, and corresponding stopper rod is taper or vertical cyclindrical shape.
It is 4. according to claim 1 a kind of for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：It is described to shine
Substance is the halide of nonmetalloid or one or more metallic element, when for halide when preferred bromide or iodate
Object, luminescent substance can be that alkalescence is neutral or acid.
5. one kind according to claim 1 or 4 is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：It is described
Luminescent substance is shaped to graininess.
6. one kind according to claim 1 or 4 is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：It is described
Rare gas is one or more combinations in helium, neon, argon gas, Krypton, xenon.
7. one kind according to claim 1 or 4 is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：It is described
Ceramics pole is identical with foam material, and the coefficient of expansion of stopper rod is consistent with the ceramics pole coefficient of expansion.
8. one kind according to claim 1 or 4 is used for the electrodeless ceramic bulbs of microwave plasma, it is characterised in that：It is described
The through hole outer end of ceramics pole is designed as expanding mouth, and stopper rod outer end is connected with the limit base that /V cooperation is formed with expanding mouth inner end,
Using expanding mouth as welding groove, solder is filled on limit base in welding groove, by solder the limit base of stopper rod is made to be welded on expansion
In footpath mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018971.7A CN108054077A (en) | 2018-01-09 | 2018-01-09 | One kind is used for the electrodeless ceramic bulbs of microwave plasma |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810018971.7A CN108054077A (en) | 2018-01-09 | 2018-01-09 | One kind is used for the electrodeless ceramic bulbs of microwave plasma |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022266021A1 (en) * | 2021-06-16 | 2022-12-22 | Kla Corporation | Method of fabricating a high-pressure laser-sustained-plasma lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980354A (en) * | 2010-10-14 | 2011-02-23 | 潮州市晨歌电光源有限公司 | Electric arc tube of ceramic electrodeless lamp |
| CN104952690A (en) * | 2015-06-17 | 2015-09-30 | 单家芳 | Electrodeless radio frequency plasma bulb |
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2018
- 2018-01-09 CN CN201810018971.7A patent/CN108054077A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980354A (en) * | 2010-10-14 | 2011-02-23 | 潮州市晨歌电光源有限公司 | Electric arc tube of ceramic electrodeless lamp |
| CN104952690A (en) * | 2015-06-17 | 2015-09-30 | 单家芳 | Electrodeless radio frequency plasma bulb |
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| WO2022266021A1 (en) * | 2021-06-16 | 2022-12-22 | Kla Corporation | Method of fabricating a high-pressure laser-sustained-plasma lamp |
| US11923185B2 (en) | 2021-06-16 | 2024-03-05 | Kla Corporation | Method of fabricating a high-pressure laser-sustained-plasma lamp |
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