WO2008113293A1 - A coaxial electrodeless lamp - Google Patents

A coaxial electrodeless lamp Download PDF

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Publication number
WO2008113293A1
WO2008113293A1 PCT/CN2008/070502 CN2008070502W WO2008113293A1 WO 2008113293 A1 WO2008113293 A1 WO 2008113293A1 CN 2008070502 W CN2008070502 W CN 2008070502W WO 2008113293 A1 WO2008113293 A1 WO 2008113293A1
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Prior art keywords
cavity
coaxial
reflector
microwave
magnetron
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PCT/CN2008/070502
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French (fr)
Chinese (zh)
Inventor
Hangxing Jin
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Dongguan Ginfax Electronics Technology Limited Company
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Publication of WO2008113293A1 publication Critical patent/WO2008113293A1/en

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    • 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
    • H01J65/042—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 by an external electromagnetic field
    • H01J65/044—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 by an external electromagnetic field the field being produced by a separate microwave unit

Definitions

  • the present invention relates to the field of an electrodeless electric light source, and more particularly to a microwave plasma light source technology.
  • the main structure has three parts: a magnetron that generates microwaves, a waveguide that transmits microwaves, and a cavity that generates microwave discharges. Products based on this structure are not only bulky, heavy, but also expensive. In general, there is currently no prospect of commercial application. In recent years, there have also been some new compact structures of electrodeless lamps (including sulfur lamps). One of the most compact structures in the prior art is reported in U.S. Patent No. 5,525,865. The induction lamp not only omits the microwave cavity but also removes the rectangular waveguide, leaving only the magnetron and the microwave shielding mesh, by means of the extension magnetic A method of controlling the height of the antenna to achieve impedance matching of the system. However, experiments have found that relying solely on changes in antenna height is difficult to implement in actual system debugging.
  • the object of the present invention is to overcome the deficiencies of the prior art and design a compact microwave induction lamp illumination device, specifically a simple coaxial cavity structure, replacing the current waveguide or waveguide plus cavity structure of the electrodeless lamp illumination device .
  • a coaxial electrodeless lamp the main structure thereof comprises a magnetron which is powered by a variable frequency power source to generate microwaves and has a magnetron antenna, and is connected to the magnetron Reflector, the magnetron antenna is located in the reflector, the open end of the reflector is provided with a flange, the metal shield mesh is fixed on the flange, the reflector, the flange and the metal shielding mesh form a microwave cavity, and the microwave cavity is installed
  • the invention has a non-polar bulb, wherein the microwave cavity is a coaxial cavity, the inner conductor of the coaxial cavity is an electrodeless bulb, the outer conductor is a reflector, and the electrodeless bulb is opposite to the magnetron antenna and maintains a distance, the coaxial cavity One end of the coaxial line is short-circuited Metal screen mesh.
  • the coaxial cavity also forms a fully enclosed coaxial cavity structure with the magnetron.
  • the reflector is a flared reflector, and the open end of the reflector is a bell mouth.
  • a further solution is:
  • the electrodeless bulb is connected to the output shaft of the micromotor via a quartz rod and a transition joint.
  • the electrodeless bulb is a quartz pellet filled with a high-purity sulfur or indium or a metal halide such as a luminescent material, and is charged with a certain amount of a starting gas, such as argon.
  • the reflector, flange, and screen mesh are generally made of aluminum, and the inner wall surface of the reflector is polished to enhance the reflective ability.
  • the present invention achieves impedance matching of a microwave system by adjusting the distance between the magnetron antenna, the electrodeless bulb, the metal shield mesh, and the degree of increase in the diameter of the reflector.
  • the power supply of the magnetron is a variable frequency power supply with frequency ⁇ 100H Z.
  • the invention Compared with the prior art, the invention has the advantages of high luminous efficiency, compact structure, economy and practicality.
  • FIG. 1 is a schematic structural view of a main body of an embodiment of the present invention
  • a coaxial electrodeless lamp the main structure thereof comprises a magnetron 2 which is powered by a variable frequency power source and generates a microwave and has a magnetron antenna 6, and a reflector 3 connected to the magnetron 2,
  • the magnetron antenna 6 is located in the reflector 3, and the flange 4 is provided at the open end of the reflector 3, and the metal screen 5 is fixed on the flange 4.
  • the reflector 3, the flange 4 and the metal shielding mesh 5 form a microwave cavity, and the microwave cavity is provided with an electrodeless bulb 1 characterized in that the microwave cavity is a coaxial cavity, and the inner conductor of the coaxial cavity is an electrodeless bulb, and the outer conductor For the reflector 3, the electrodeless bulb 1 is facing the magnetron antenna 6 and kept at a certain distance, and the coaxial short-circuit surface of the coaxial cavity is a metal shielding mesh 5.
  • the reflector 3 is a horn-shaped reflector 3, and the open end of the reflector 3 is a bell mouth, so the microwave cavity is a coaxial cavity with a variable diameter, and the diameter is gradually expanded along the direction of microwave propagation. Forming a trumpet structure.
  • the electrodeless bulb 1 is connected to the output shaft of the micromotor 9 via a quartz rod 7, and a transition joint 8. [20]
  • the electrodeless bulb 1 is a quartz pellet filled with a luminescent substance such as high-purity sulfur or indium, and is charged with a certain amount of starting gas.
  • the microwave generated by the magnetron 2 is emitted by the magnetron antenna 6 and enters the coaxial cavity, which is directly absorbed by the electrodeless bulb 1 placed in the coaxial cavity, and excites the quartz ball to emit light.
  • the electrodeless bulb 1 is connected to the micromotor 9 through the quartz rod 7 transition joint 8 and the micromotor 9 drives the electrodeless bulb 1 to rotate at 2000 RPM.
  • the micro motor 9 is powered by 12V DC.
  • the electrodeless bulb 1 is a quartz pellet filled with a luminescent substance such as high-purity sulfur or indium, and is filled with a certain amount of argon gas as a starting gas.
  • Magnetron 2 can be used in magnetrons commonly used in microwave ovens, such as 2M210-M1 produced by Matsushita.
  • the magnetron 2 is powered by a variable frequency power supply with a frequency of ⁇ 100HZ.
  • Reflector 3, flange 4, and shield mesh 5 are all made of aluminum. To enhance the reflective ability, the inner wall of the reflector 3 needs to be polished. The screen 5 is first polished with acid to enhance light transmission. rate. Finally, the aluminum mesh will be used to shield the screen.
  • a typical coaxial electrodeless lamp designed according to Figure 1 can obtain a microwave light source with a luminous efficiency of 130Lm/w, a color temperature of 6000K, and a color rendering index of 80 when the input power is 600W.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

The invention discloses a coaxial electrodeless lamp comprising: a magnetron(2) for generating microwave with an antenna(6), a light-reflecting cavity (3) connected with the magnetron(2). The antenna(6) locates in the light-reflecting cavity (3). A flange(4) is installed at the opening of the cavity (3) and a metal screen(5) is fastened to the flange(4).The light-reflecting cavity(3),the flange(4) and the metal screen(5) form a microwave cavity and a electrodeless bulb(1) is installed in the microwave cavity. The microwave cavity is a coaxial cavity. The electrodeless bulb(1) acts as the inner conductor of the coaxial cavity and the light-reflecting cavity (3) acts as the outer conductor separately. The electrodeless bulb(1) is coaxial and maintains a proper distance to the antenna(6). The metal screen(5) serves as the short-circuit surface of the coaxial cavity at the terminal of coaxial line(10). The impedance of the microwave system can be matched perfectly through adjusting the distance of the antenna(6), the electrodeless bulb(1) and the metal screen(5), and increasing the diameter of the light-reflecting cavity (3).

Description

说明书 同轴无极灯  Manual Coaxial Induction Lamp
技术领域  Technical field
[1] 本发明涉及无极灯电光源领域， 特别是一种微波等离子光源技术。  [1] The present invention relates to the field of an electrodeless electric light source, and more particularly to a microwave plasma light source technology.
背景技术  Background technique
[2] 综观现在投放市场的微波硫灯， 归纳起来， 其主体结构均有三部分组成： 产生 微波的磁控管， 传输微波的波导和产生微波放电的谐振腔。 基于这种结构所推 出的产品， 不仅体积大， 重量重， 而且价格昂贵。 总体上讲， 目前尚不具有商 业化应用的前景。 近几年来， 也有一些新的紧凑结构的无极灯 （包括硫灯） 公 开。 其中美国专利 US-5525865所报导的是当前结构最为紧凑的一例， 该无极灯 ， 不仅省略了微波谐振腔， 而且也去掉了矩形波导， 仅仅保留了磁控管和微波 屏蔽网， 借助于延伸磁控管天线高度的方法， 实现系统的阻抗匹配。 但实验发 现， 仅仅依靠天线高度的变化， 在实际系统调试较难实施。  [2] Looking at the microwave sulfur lamps that are currently on the market, the main structure has three parts: a magnetron that generates microwaves, a waveguide that transmits microwaves, and a cavity that generates microwave discharges. Products based on this structure are not only bulky, heavy, but also expensive. In general, there is currently no prospect of commercial application. In recent years, there have also been some new compact structures of electrodeless lamps (including sulfur lamps). One of the most compact structures in the prior art is reported in U.S. Patent No. 5,525,865. The induction lamp not only omits the microwave cavity but also removes the rectangular waveguide, leaving only the magnetron and the microwave shielding mesh, by means of the extension magnetic A method of controlling the height of the antenna to achieve impedance matching of the system. However, experiments have found that relying solely on changes in antenna height is difficult to implement in actual system debugging.
发明内容  Summary of the invention
[3] 本发明的目的是克服现有技术的不足， 设计一种紧凑微波无极灯照明装置， 具 体地说以简单同轴腔结构， 取替现行波导或者波导加谐振腔结构的无极灯照明 装置。  [3] The object of the present invention is to overcome the deficiencies of the prior art and design a compact microwave induction lamp illumination device, specifically a simple coaxial cavity structure, replacing the current waveguide or waveguide plus cavity structure of the electrodeless lamp illumination device .
[4] 本发明的基本思路是： 考虑到磁控管天线本身是一种同轴线结构， 根据微波理 论中电磁场必须连续的要求， 续后续匹配系统， 最好也应该釆用同轴线结构。 基于上述考虑， 如果将上述美国专利中的法兰盘延伸作外导体， 而将无极灯泡 作内导体， 这样组成的同轴线系统， 就能很好实现阻抗匹配。  [4] The basic idea of the invention is: Considering that the magnetron antenna itself is a coaxial line structure, according to the requirements of the microwave theory that the electromagnetic field must be continuous, the subsequent matching system should continue, and the coaxial line structure should preferably be used. . Based on the above considerations, if the flange of the above-mentioned U.S. patent is extended as an outer conductor and the electrodeless bulb is used as an inner conductor, the coaxial system thus constituted can achieve impedance matching well.
[5] 本发明具体是通过以下技术方案实现的： 一种同轴无极灯， 其主体结构包括由 变频电源供电而产生微波且带磁控管天线的磁控管， 与磁控管相连接的反光罩 ， 磁控管天线位于反光罩中， 反光罩开口端设有法兰盘， 法兰盘上固定有金属 屏蔽网， 反光罩， 法兰盘和金属屏蔽网组成微波腔， 微波腔中装有无极灯泡， 其特征是所述的微波腔为同轴腔， 同轴腔的内导体为无极灯泡， 外导体为反光 罩， 无极灯泡正对磁控管天线且保持一段距离， 同轴腔的同轴线一端短路面为 金属屏蔽网。 同轴腔还与磁控管一起， 构成一个全封闭的同轴腔结构。 [5] The present invention is specifically realized by the following technical solutions: A coaxial electrodeless lamp, the main structure thereof comprises a magnetron which is powered by a variable frequency power source to generate microwaves and has a magnetron antenna, and is connected to the magnetron Reflector, the magnetron antenna is located in the reflector, the open end of the reflector is provided with a flange, the metal shield mesh is fixed on the flange, the reflector, the flange and the metal shielding mesh form a microwave cavity, and the microwave cavity is installed The invention has a non-polar bulb, wherein the microwave cavity is a coaxial cavity, the inner conductor of the coaxial cavity is an electrodeless bulb, the outer conductor is a reflector, and the electrodeless bulb is opposite to the magnetron antenna and maintains a distance, the coaxial cavity One end of the coaxial line is short-circuited Metal screen mesh. The coaxial cavity also forms a fully enclosed coaxial cavity structure with the magnetron.
[6] 进一步的方案是： 所述的反光罩为喇叭形反光罩， 反光罩开口端为喇叭口。  [6] A further solution is: the reflector is a flared reflector, and the open end of the reflector is a bell mouth.
[7] 进一步的方案是： 无极灯泡通过石英棒、 过渡接头与微电机的输出轴相连接。  [7] A further solution is: The electrodeless bulb is connected to the output shaft of the micromotor via a quartz rod and a transition joint.
[8] 更进一步的方案是： 无极灯泡为石英小球， 内充高纯硫或铟或者金属卤化物等 发光物质， 且充有一定量的启动气体， 例如氩气。  [8] A further solution is: The electrodeless bulb is a quartz pellet filled with a high-purity sulfur or indium or a metal halide such as a luminescent material, and is charged with a certain amount of a starting gas, such as argon.
[9] 所述的反光罩、 法兰盘、 屏蔽网， 一般由铝材制成， 且反光罩内壁表面要抛光 处理， 以增强反光能力。 [9] The reflector, flange, and screen mesh are generally made of aluminum, and the inner wall surface of the reflector is polished to enhance the reflective ability.
[10] 本发明通过调节磁控管天线， 无极灯泡， 金属屏蔽网之间的距离， 以及反光罩 直径增大程度， 即实现微波系统的阻抗匹配。 [10] The present invention achieves impedance matching of a microwave system by adjusting the distance between the magnetron antenna, the electrodeless bulb, the metal shield mesh, and the degree of increase in the diameter of the reflector.
[11] 磁控管的供电为频率≥ 100H Z的变频电源。 [11] The power supply of the magnetron is a variable frequency power supply with frequency ≥ 100H Z.
[12] 本发明与现有的技术相比， 具有光效高、 结构紧凑、 经济实用等优点。  [12] Compared with the prior art, the invention has the advantages of high luminous efficiency, compact structure, economy and practicality.
附图说明  DRAWINGS
[13] 图 1是本发明实施例主体结构示意图  1 is a schematic structural view of a main body of an embodiment of the present invention
[14] 图中： [14] In the picture:
[15] 1无极灯泡， 2磁控管， 3反光罩， 4法兰盘， 5金属屏蔽网， 6磁控管天线， 7 石英棒， 8过渡接头， 9微电机， 10同轴线。  [15] 1 Promise bulb, 2 magnetron, 3 reflector, 4 flange, 5 metal screen, 6 magnetron antenna, 7 quartz rod, 8 transition joint, 9 micro motor, 10 coaxial cable.
具体实施方式  detailed description
[16] 下面结合附图对本发明作评尽描述： [16] The following is a description of the present invention in conjunction with the accompanying drawings:
[17] 如图 1、 一种同轴无极灯， 其主体结构包括由变频电源供电而产生微波且带磁 控管天线 6的磁控管 2， 与磁控管 2相连接的反光罩 3， 磁控管天线 6位于反光罩 3 中， 反光罩 3开口端设有法兰盘 4， 法兰盘 4上固定有金属屏蔽网 5。 反光罩 3、 法 兰盘 4和金属屏蔽网 5组成微波腔， 微波腔中装有无极灯泡 1， 其特征是所述的微 波腔为同轴腔， 同轴腔内导体为无极灯泡， 外导体为反光罩 3， 无极灯泡 1正对 磁控管天线 6且保持一定距离， 同轴腔的同轴线 10—端短路面为金属屏蔽网 5。  [17] As shown in FIG. 1, a coaxial electrodeless lamp, the main structure thereof comprises a magnetron 2 which is powered by a variable frequency power source and generates a microwave and has a magnetron antenna 6, and a reflector 3 connected to the magnetron 2, The magnetron antenna 6 is located in the reflector 3, and the flange 4 is provided at the open end of the reflector 3, and the metal screen 5 is fixed on the flange 4. The reflector 3, the flange 4 and the metal shielding mesh 5 form a microwave cavity, and the microwave cavity is provided with an electrodeless bulb 1 characterized in that the microwave cavity is a coaxial cavity, and the inner conductor of the coaxial cavity is an electrodeless bulb, and the outer conductor For the reflector 3, the electrodeless bulb 1 is facing the magnetron antenna 6 and kept at a certain distance, and the coaxial short-circuit surface of the coaxial cavity is a metal shielding mesh 5.
[18] 所述的反光罩 3为喇叭形反光罩 3， 反光罩 3开口端为喇叭口， 因此该微波腔又 是一个直径可变的同轴腔， 沿微波传播方向， 直径是逐渐扩大， 形成喇叭状结 构。  [18] The reflector 3 is a horn-shaped reflector 3, and the open end of the reflector 3 is a bell mouth, so the microwave cavity is a coaxial cavity with a variable diameter, and the diameter is gradually expanded along the direction of microwave propagation. Forming a trumpet structure.
[19] 无极灯泡 1通过石英棒 7， 过渡接头 8与微电机 9的输出轴相连接。 [20] 无极灯泡 1为石英小球， 内充高纯硫或铟等发光物质， 且充有一定量的启动气 体。 [19] The electrodeless bulb 1 is connected to the output shaft of the micromotor 9 via a quartz rod 7, and a transition joint 8. [20] The electrodeless bulb 1 is a quartz pellet filled with a luminescent substance such as high-purity sulfur or indium, and is charged with a certain amount of starting gas.
[21] 磁控管 2产生的微波， 经磁控管天线 6发射， 进入同轴腔， 直接被置于同轴腔中 的无极灯泡 1所吸收， 激励石英小球而发光。  [21] The microwave generated by the magnetron 2 is emitted by the magnetron antenna 6 and enters the coaxial cavity, which is directly absorbed by the electrodeless bulb 1 placed in the coaxial cavity, and excites the quartz ball to emit light.
[22] 为确保无极灯泡稳定地工作， 并使灯泡被微波照射均匀， 无极灯泡 1通过石英 棒 7过渡接头 8与微电机 9相连， 微电机 9带动无极灯泡 1以 2000RPM速度转动。 微 电机 9釆用 12V直流供电。 无极灯泡 1为石英小球， 内充高纯硫或铟等发光物质， 且充有一定量氩气作启动气体。 [22] In order to ensure that the electrodeless bulb works stably and the bulb is evenly irradiated by the microwave, the electrodeless bulb 1 is connected to the micromotor 9 through the quartz rod 7 transition joint 8 and the micromotor 9 drives the electrodeless bulb 1 to rotate at 2000 RPM. The micro motor 9 is powered by 12V DC. The electrodeless bulb 1 is a quartz pellet filled with a luminescent substance such as high-purity sulfur or indium, and is filled with a certain amount of argon gas as a starting gas.
[23] 磁控管 2可釆用在微波炉经常使用的磁控管， 如松下公司生产的 2M210-M1 , 磁 控管 2供电为频率≥100HZ的变频电源。 [23] Magnetron 2 can be used in magnetrons commonly used in microwave ovens, such as 2M210-M1 produced by Matsushita. The magnetron 2 is powered by a variable frequency power supply with a frequency of ≥100HZ.
[24] 反光罩 3、 法兰盘 4、 屏蔽网 5均由铝材制成， 为增强反光能力， 反光罩 3内壁需 经抛光处理， 屏蔽网 5先用酸抛光处理， 以增强光透过率。 最后用铝环将屏蔽网[24] Reflector 3, flange 4, and shield mesh 5 are all made of aluminum. To enhance the reflective ability, the inner wall of the reflector 3 needs to be polished. The screen 5 is first polished with acid to enhance light transmission. rate. Finally, the aluminum mesh will be used to shield the screen.
5固定在法兰盘 4上。 调节磁控管天线 6、 无极灯泡 1、 屏蔽网 5之间距离， 以及反 光罩 3直径增大程度， 可实现微波系统最佳阻抗匹配。 5 is fixed on the flange 4. Adjusting the magnetron antenna 6, the electrodeless bulb 1, the distance between the shielding nets 5, and the increase in the diameter of the reflector 3 can achieve the optimal impedance matching of the microwave system.
[25] 按图 1设计的一种典型同轴无极灯， 当输入功率为 600W吋， 可获得光效 130Lm/ w, 色温 6000K, 显色指数 80的微波光源。 [25] A typical coaxial electrodeless lamp designed according to Figure 1 can obtain a microwave light source with a luminous efficiency of 130Lm/w, a color temperature of 6000K, and a color rendering index of 80 when the input power is 600W.

Claims

权利要求书 Claim
[1] 1、 一种同轴无极灯， 其主体结构包括产生微波且带磁控管天线 （6) 的磁 控管 （2) ， 与磁控管 （2) 相连接的反光罩 （3) ， 磁控管天线 （6) 位于 反光罩 （3) 中， 反光罩 （3) 开口端设有法兰盘 （4) ， 法兰盘 （4) 上固 定有金属屏蔽网 （5) ， 反光罩 （3) 、 法兰盘 （4) 和金属屏蔽网 （5) 组 成微波腔， 微波腔中装有无极灯泡 （1) ， 其特征是所述的微波腔为同轴腔 ， 同轴腔的内导体为无极灯泡 （1) ， 外导体为反光罩 （3) ， 无极灯泡 （1 ) 正对磁控管天线 （6) 且保持一段距离， 同轴腔的同轴线 （10) —端短路 面为金属屏蔽网 （5) 。  [1] 1. A coaxial induction lamp, the main structure comprising a magnetron (2) for generating a microwave and having a magnetron antenna (6), and a reflector (3) connected to the magnetron (2) The magnetron antenna (6) is located in the reflector (3), the flange (4) is provided at the open end of the reflector (3), and the metal shielding mesh (5) is fixed on the flange (4), the reflector (3), the flange (4) and the metal shielding net (5) form a microwave cavity, and the microwave cavity is provided with an electrodeless bulb (1), wherein the microwave cavity is a coaxial cavity, and the inside of the coaxial cavity The conductor is an electrodeless bulb (1), the outer conductor is a reflector (3), the electrodeless bulb (1) is facing the magnetron antenna (6) and is kept at a distance, and the coaxial line (10) of the coaxial cavity is short-circuited at the end. For metal shielding mesh (5).
[2] 2、 根据权利要求 1所述的同轴无极灯， 其特征是所述的反光罩 （3) 为喇叭 形反光罩 （3) ， 反光罩 （3) 开口端为喇叭口。  [2] 2. The coaxial induction lamp according to claim 1, wherein the reflector (3) is a horn-shaped reflector (3), and the open end of the reflector (3) is a bell mouth.
[3] 3、 根据权利要求 1所述的同轴无极灯， 其特征是无极灯泡 （1) 通过石英棒  [3] 3. The coaxial induction lamp according to claim 1, characterized in that the electrodeless bulb (1) passes through the quartz rod
(7) ， 过渡接头 （8) 与微电机 （9) 的输出轴相连接。  (7) The transition joint (8) is connected to the output shaft of the micromotor (9).
[4] 4、 根据权利要求 1或 3所述的同轴无极灯， 其特征是无极灯泡 （1) 为石英 小球， 内充发光物质高纯硫或铟， 且充有一定量的启动气体。  [4] 4. The coaxial induction lamp according to claim 1 or 3, characterized in that the electrodeless bulb (1) is a quartz pellet filled with a high-purity sulfur or indium and filled with a certain amount of starting gas.
PCT/CN2008/070502 2007-03-16 2008-03-14 A coaxial electrodeless lamp WO2008113293A1 (en)

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CN201017853Y (en) * 2007-03-16 2008-02-06 金行星 Coaxial electrodeless lamp
CN108807136A (en) * 2013-03-01 2018-11-13 朴秀用 sulphur lamp
CN113728521A (en) 2019-02-22 2021-11-30 安费诺有限公司 High performance cable connector assembly

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US4928040A (en) * 1987-08-07 1990-05-22 Osamu Uesaki Ultra violet ray generator by means of microwave excitation
US5525865A (en) * 1994-02-25 1996-06-11 Fusion Lighting, Inc. Compact microwave source for exciting electrodeless lamps
CN2529381Y (en) * 2001-11-23 2003-01-01 香港精博科技有限公司 Microwave lamp using half-wavelength transmission line
CN2679965Y (en) * 2004-02-09 2005-02-16 金行星 Microwave plasma light source
CN201017853Y (en) * 2007-03-16 2008-02-06 金行星 Coaxial electrodeless lamp

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JPS61104560A (en) * 1984-10-25 1986-05-22 Toshiba Corp Microwave electric-discharge light source
US4928040A (en) * 1987-08-07 1990-05-22 Osamu Uesaki Ultra violet ray generator by means of microwave excitation
US5525865A (en) * 1994-02-25 1996-06-11 Fusion Lighting, Inc. Compact microwave source for exciting electrodeless lamps
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CN2679965Y (en) * 2004-02-09 2005-02-16 金行星 Microwave plasma light source
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