WO2023060894A1 - 2650kHz射频感应真空紫外灯 - Google Patents
2650kHz射频感应真空紫外灯 Download PDFInfo
- Publication number
- WO2023060894A1 WO2023060894A1 PCT/CN2022/093725 CN2022093725W WO2023060894A1 WO 2023060894 A1 WO2023060894 A1 WO 2023060894A1 CN 2022093725 W CN2022093725 W CN 2022093725W WO 2023060894 A1 WO2023060894 A1 WO 2023060894A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radio frequency
- vacuum ultraviolet
- ultraviolet lamp
- 2650khz
- coupler
- Prior art date
Links
- 230000006698 induction Effects 0.000 title claims abstract description 12
- 239000011521 glass Substances 0.000 claims abstract description 15
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052743 krypton Inorganic materials 0.000 claims abstract description 13
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 11
- 230000005284 excitation Effects 0.000 claims abstract description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract 8
- 229910052786 argon Inorganic materials 0.000 claims abstract 4
- 229910052724 xenon Inorganic materials 0.000 claims abstract 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000203 mixture Substances 0.000 claims abstract 3
- 229910052734 helium Inorganic materials 0.000 claims abstract 2
- 239000001307 helium Substances 0.000 claims abstract 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000000565 sealant Substances 0.000 claims 1
- 238000010168 coupling process Methods 0.000 abstract description 7
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 5
- 239000011261 inert gas Substances 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910000497 Amalgam Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
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
- 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
- H01J65/048—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 using an excitation coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/16—Selection of substances for gas fillings; Specified operating pressure or temperature having helium, argon, neon, krypton, or xenon as the principle constituent
-
- 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
- H01J61/361—Seals between parts of vessel
Definitions
- the invention belongs to the field of electronic technology, and it can be used as a photoionization source of a mass spectrometer detector, and can also be used as a vacuum ultraviolet light source in waste water and waste gas treatment, light-induced surface modification and other related fields.
- the krypton lamp excited by radio frequency outputs 116.5/123.6nm vacuum ultraviolet light, which can effectively ionize most volatile organic compounds, and is often used as a vacuum ultraviolet photoionization source for mass spectrometers.
- a radio frequency excited krypton lamp consists of a cylindrical bulb, a radio frequency generator and a radio frequency coupler.
- the krypton lamp bulb is packed with krypton gas and buffer gas as the luminous medium, and one end of the bulb has a window that can transmit vacuum ultraviolet light.
- the function of the RF coupler is to transmit the RF energy output by the RF generator to the luminescent medium to form a plasma that can emit vacuum ultraviolet light.
- the capacitive coupler is composed of two semi-cylindrical electrodes covering both sides of the cylindrical bulb.
- the two semi-cylindrical electrodes are respectively connected to the two RF output terminals output by the RF generator with a phase difference of 180 degrees.
- the RF voltage is applied to the two When two semi-cylindrical electrodes are on the electrodes, the alternating electric field between the electrodes excites the luminescent medium in the bulb to generate plasma, and the electrons in the plasma obtain kinetic energy under the action of the alternating electric field and collide with the krypton atoms to generate excited state krypton atoms.
- Vacuum ultraviolet light is emitted when the excited krypton atom transitions to the ground state.
- the RF inductive coupler of an RF krypton lamp is a set of coils wound around a cylindrical bulb. When the radio frequency current flows through the coil, the induced magnetic field generated by the radio frequency excites the luminescent medium in the bulb to generate plasma luminescence. Compared with mercury vapor, the light-emitting medium of fluorescent lighting lamps, krypton gas is more difficult to excite to form plasma.
- krypton lamps generally use radio frequency excitation with a frequency of more than ten megahertz or higher.
- High-frequency magnetically permeable materials can effectively increase the magnetic permeability and reduce the volume of inductors. Combined with high-frequency magnetically permeable materials, lower-frequency radio-frequency currents can also generate an induced magnetic field that can form plasma.
- the lighting induction lamp excited by 2650kHz radio frequency is a mature commercial lighting product.
- the lighting induction lamp is composed of three parts: a radio frequency generator, a coupler and a bulb.
- the radio frequency generator generates a radio frequency current of 2650kHz
- the coupler is a ferrite core wound around a coil
- the ferrite core is a high-frequency magnetic material that can work at a radio frequency of 2650kHz.
- Lighting electrodeless lamp bulbs are generally hollow cylindrical glass bulbs, which contain a certain amount of inert buffer gas and solid amalgam.
- the solid amalgam is used to generate mercury vapor as a luminescent medium.
- electrodeless lighting lamps are a new type of green light source with higher electro-optical conversion efficiency and longer service life. Because it is a large-scale commercial production of lighting products, compared with the traditional krypton lamps excited by radio frequency, the lighting electrodeless lamps excited by 2650kHz frequency are low in price and mature in technology. However, this technology using 2650kHz radio frequency coupled with magnetically permeable material coupling has not been used to form a vacuum ultraviolet light source.
- the present invention provides a 2650kHz radio frequency induction vacuum ultraviolet lamp.
- the vacuum ultraviolet lamp adopts the radio frequency generator and coupler of the commercial lighting electrodeless lamp, combined with the hollow cylindrical high-temperature glass bulb and the window that can transmit the vacuum ultraviolet light, can generate high-flux vacuum ultraviolet light, and greatly reduce the vacuum ultraviolet light source. the cost of.
- the technical scheme adopted by the patent of the present invention is: 1.
- the 2650kHz radio frequency induction vacuum ultraviolet lamp has a hollow cylindrical high-temperature glass bulb; 2.
- the front end of the hollow cylindrical high-temperature glass bulb is sealed by a high-temperature adhesive and can transmit vacuum ultraviolet light. ;
- the back end of the hollow cylindrical high-temperature glass bulb is an aluminum alloy base of a vacuum ultraviolet lamp bonded together by an adhesive; 4.
- a certain inert gas is filled in the cylindrical high-temperature glass bulb as a luminous medium; 5.
- Radio frequency coupling The device is composed of a ferrite core wrapped with a coil and an aluminum alloy rod of an RF coupler; 6.
- the RF coupler is coaxially fixed in the center of the vacuum ultraviolet bulb; 7.
- the 2650kHz RF generator is the RF generator of the commercial lighting electrodeless lamp. 8.
- the radio frequency current generated by the radio frequency generator flows through the coil wound on the ferrite core through the wire. Under the strengthening effect of the ferrite core, the radio frequency induced magnetic field excites the luminescent medium in the hollow cylindrical high temperature glass bulb , producing vacuum ultraviolet light.
- the beneficial effects of the present invention are: a vacuum ultraviolet light lamp adopting 2650kHz radio frequency combined with magnetic permeable material radio frequency coupling technology is provided for the application field of vacuum ultraviolet light, and the lamp has low cost and simple structure.
- Fig. 1 is the structure schematic diagram of 2650kHz radio frequency induction vacuum ultraviolet lamp of the present invention, wherein: 1, 220V AC lead, 2, 2650kHz radio frequency generator, 3, radio frequency lead, 4, radio frequency coupler aluminum alloy rod, 5, vacuum ultraviolet lamp aluminum Alloy base, 6. Hollow cylindrical high-temperature glass bulb, 7. Exciting coil, 8. Ferrite core, 9. Windows that can transmit vacuum ultraviolet light.
- Step 1 220V AC wire (1) is connected to a 220V power socket;
- Step 2 2650kHz RF generator (2) generates 2650kHz RF current;
- Step 3 2650kHz RF current flows through the RF wire (3) through the excitation coil (7);
- step 4 Under the action of the ferrite core (8), the radio frequency generates an induced magnetic field of sufficient strength;
- Step 5 The induced magnetic field excites the inert gas in the hollow cylindrical high-temperature glass bulb (5) to form a plasma discharge;
- Step 6 The plasma The vacuum ultraviolet light generated by the discharge is output through the window (9) that can transmit the vacuum ultraviolet light.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
一种2650kHz射频感应真空紫外灯，由2650kHz射频发生器（2）、射频耦合器铝合金杆（4）、真空紫外灯铝合金底座（5）、空心柱状高温玻璃灯泡（6）、激发线圈（7）、铁氧体磁芯（8）和可透射真空紫外光的窗片（9）组成，射频耦合器铝合金杆（4）、激发线圈（7）和铁氧体磁芯（8）构成射频耦合器。采用2650kHz射频结合导磁材料耦合技术产生真空紫外光，2650kHz射频发生器（2）和射频耦合器是商业化照明无极灯的射频发生器和耦合器，空心柱状高温玻璃灯泡（6）内封有30帕到300帕的氩气、氪气、氙气或其与氦气的混合气体。2650kHz射频发生器（2）产生射频电流流过缠在铁氧体磁芯（8）上的激发线圈（7），产生感应磁场激发灯泡（6）内的惰性气体形成等离子体放电，等离子体产生的真空紫外光经可透射真空紫外光的窗片（9）输出出来。
Description
本发明属于电子技术领域，它可作为质谱检测器的光电离源，也可作为废水和废气处理、光诱导表面改性及其它相关领域的真空紫外光源。
射频激发的氪灯输出116.5/123.6nm的真空紫外光，可以有效电离大部分挥发性有机物，常用作质谱仪器的真空紫外光电离源。射频激发的氪灯由柱状灯泡、射频发生器和射频耦合器构成。氪灯灯泡里封装有氪气及缓冲气体作为发光介质，灯泡的一端有可以透过真空紫外光的窗片。射频耦合器的作用是将射频发生器输出的射频能量传给发光介质，形成可以发射真空紫外光的等离子体。射频耦合器的耦合方式主要有两种：电容耦合和射频感应耦合。电容耦合器由覆盖于柱状灯泡两侧的两个半柱面电极构成，两个半柱面电极分别连接射频发生器输出的两个相位相差180度的射频输出端，当射频电压施加在这两个半柱面电极上时，电极间的交变电场激发灯泡内的发光介质，产生等离子体，等离子体内的电子在交变电场的作用下获得动能并与氪原子碰撞，产生激发态氪原子，当激发态氪原子向基态跃迁时发射真空紫外光。射频氪灯的射频感应耦合器是一组缠绕于柱状灯泡上的线圈。当射频电流流过线圈的时候，射频产生的感应磁场激发灯泡内的发光介质，产生等离子体发光。相对于荧光照明灯的发光介质汞蒸汽，氪气较难激发形成等离子体，作为真空紫外光源的氪灯一般使用频率为十几兆赫兹或更高的射频激发。
高频导磁材料可以有效增大导磁率，缩小电感器体积，结合高频导磁材料，较低频率的射频电流也可以产生能形成等离子体的感应磁场。2650kHz射频激发的照明无极灯已是成熟的商业化照明产品，照明无极灯由射频发生器、耦合器和灯泡三部分组成。射频发生器产生2650kHz的射频电流，耦合器是缠绕线圈的铁氧体磁芯，铁氧体磁芯是可以在2650kHz射频下工作的高频导磁材料。照明无极灯灯泡一般是中空柱状玻璃灯泡，里面装有一定的惰性缓冲气体和固体汞剂，固体汞剂用来产生发光介质的汞蒸汽。灯泡的内表面有一层荧光物质，用于将放电产生的激发态汞原子发出的紫外光转变成可见光。相对于传统的白炽灯，照明无极灯是一种新型绿色光源，电光转换效率较高，使用寿命较长。由于是大规模商业化生产的照明产品，相对于传统射频激发的氪灯，2650kHz频激发的照明无极灯价格低，技术成熟。然而这种采用2650kHz射频结合导磁材料耦合的技术还没有用于形成真空紫外光源。
发明内容
为了克服上述真空紫外光源现有技术上的不足，本发明提供了一种2650kHz射频感应真空紫外灯。该真空紫外灯采用商业化照明无极灯的射频发生器和耦合器，结合空心柱状高温 玻璃灯泡和可透射真空紫外光的窗片，可以产生高通量的真空紫外光，且大大降低真空紫外光源的成本。
本发明专利采用的技术方案是：1、2650kHz射频感应真空紫外灯有一个空心柱状高温玻璃灯泡；2、空心柱状高温玻璃灯泡的前端是由高温粘结剂密封的可透射真空紫外光的窗片；3、空心柱状高温玻璃灯泡后端是一个由粘结剂粘接在一起的真空紫外灯铝合金底座；4、柱状高温玻璃灯泡里充有一定的惰性气体，作为发光介质；5、射频耦合器由缠有线圈的铁氧体磁芯和射频耦合器铝合金杆组成；6、射频耦合器同轴固定在真空紫外灯泡的中心；7、2650kHz射频发生器是商业化照明无极灯的射频发生器；8、射频发生器产生的射频电流经导线流过缠在铁氧体磁芯上的线圈，在铁氧体磁芯的增强作用下，射频感应磁场激发空心柱状高温玻璃灯泡里的发光介质，产生真空紫外光。
本发明的有益效果是：为真空紫外光应用领域提供了一种采用2650kHz射频结合导磁材料射频耦合技术的真空紫外光灯，该灯的成本低、结构简单。
图1为本发明2650kHz射频感应真空紫外灯的结构示意图，其中：1、220V交流导线，2、2650kHz射频发生器，3、射频导线，4、射频耦合器铝合金杆，5、真空紫外灯铝合金底座，6、空心柱状高温玻璃灯泡，7、激发线圈，8、铁氧体磁芯，9、可透射真空紫外光的窗片。
下面结合附图对本发明的实施例作详细说明：本实施例在以本发明技术方案为前提下进行，本发明的保护范围不限于下述的实施例。
步骤1：220V交流导线(1)连接220V电源插座；步骤2：2650kHz射频发生器(2)产生2650kHz射频电流；步骤3：2650kHz射频电流经射频导线(3)流过激发线圈(7)；步骤4：在铁氧体磁芯(8)作用下，射频产生足够强度的感应磁场；步骤5：感应磁场激发空心柱状高温玻璃灯泡(5)内的惰性气体形成等离子体放电；步骤6：等离子体放电产生的真空紫外光经可透射真空紫外光的窗片(9)输出出来。
Claims (5)
- 2650kHz射频感应真空紫外灯由220V交流导线、2650kHz射频发生器、射频导线，射频耦合器铝合金杆、真空紫外灯铝合金底座、空心柱状高温玻璃灯泡、激发线圈、铁氧体磁芯和可透射真空紫外光的窗片组成，其特征在于：射频耦合器铝合金杆、铁氧体磁芯和激发线圈构成射频耦合器，空心柱状高温玻璃灯泡和可透射真空紫外光的窗片由高温密封胶粘接成真空紫外灯灯泡，射频耦合器、真空紫外灯铝合金底座和真空紫外灯灯泡同轴紧密相连。
- 根据权利要求1所述的2650kHz射频感应真空紫外灯，其特征在于：2650kHz射频发生器是商业化照明无极灯的2650kHz射频发生器。
- 根据权利要求1所述的2650kHz射频感应真空紫外灯，其特征在于：射频耦合器是是商业化照明无极灯的2650kHz射频耦合器。
- 根据权利要求1所述的2650kHz射频感应真空紫外灯，其特征在于：真空紫外灯灯泡内封装有30帕到300帕的氩气、氪气、氙气的任意一种或两种，或氩气、氪气、氙气中任意一种或两种与氦气的混合气体。
- 根据权利要求1所述的2650kHz射频感应真空紫外灯，其特征在于：空心柱状高温玻璃灯泡是高温玻璃加工而成。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389165.7 | 2022-04-14 | ||
| CN202210389165.7A CN116959954A (zh) | 2022-04-14 | 2022-04-14 | 2650kHz射频感应真空紫外灯 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023060894A1 true WO2023060894A1 (zh) | 2023-04-20 |
Family
ID=85987260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2022/093725 WO2023060894A1 (zh) | 2022-04-14 | 2022-05-19 | 2650kHz射频感应真空紫外灯 |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN116959954A (zh) |
| LU (1) | LU504109B1 (zh) |
| WO (1) | WO2023060894A1 (zh) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201355604Y (zh) * | 2008-12-30 | 2009-12-02 | 房时洪 | 无极紫外灯 |
| CN201425934Y (zh) * | 2009-05-13 | 2010-03-17 | 吴帆 | 一种高频感应紫外线灯 |
| CN102324379A (zh) * | 2011-08-15 | 2012-01-18 | 来安县腾升电器有限公司 | 一种紫外线杀菌灯 |
| CN102664135A (zh) * | 2012-05-25 | 2012-09-12 | 复旦大学 | 一种感应耦合高强度紫外光源 |
| CN103325660A (zh) * | 2012-03-20 | 2013-09-25 | 北京航天宏达光电技术股份有限公司 | 射频无极紫外光源 |
| CN112635294A (zh) * | 2020-12-22 | 2021-04-09 | 中国科学技术大学 | 超高亮度真空紫外灯 |
-
2022
- 2022-04-14 CN CN202210389165.7A patent/CN116959954A/zh active Pending
- 2022-05-19 WO PCT/CN2022/093725 patent/WO2023060894A1/zh unknown
- 2022-05-19 LU LU504109A patent/LU504109B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201355604Y (zh) * | 2008-12-30 | 2009-12-02 | 房时洪 | 无极紫外灯 |
| CN201425934Y (zh) * | 2009-05-13 | 2010-03-17 | 吴帆 | 一种高频感应紫外线灯 |
| CN102324379A (zh) * | 2011-08-15 | 2012-01-18 | 来安县腾升电器有限公司 | 一种紫外线杀菌灯 |
| CN103325660A (zh) * | 2012-03-20 | 2013-09-25 | 北京航天宏达光电技术股份有限公司 | 射频无极紫外光源 |
| CN102664135A (zh) * | 2012-05-25 | 2012-09-12 | 复旦大学 | 一种感应耦合高强度紫外光源 |
| CN112635294A (zh) * | 2020-12-22 | 2021-04-09 | 中国科学技术大学 | 超高亮度真空紫外灯 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116959954A (zh) | 2023-10-27 |
| LU504109B1 (en) | 2023-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU705741B2 (en) | High intensity electrodeless low pressure light source | |
| US4010400A (en) | Light generation by an electrodeless fluorescent lamp | |
| CN200983356Y (zh) | 高频等离子无极灯 | |
| JP4195483B2 (ja) | 電気ランプアセンブリ | |
| CN101217098B (zh) | 超高频无极放电灯光源 | |
| WO2023060894A1 (zh) | 2650kHz射频感应真空紫外灯 | |
| CN102760636B (zh) | 一种无极灯的耦合发光方法及其结构 | |
| JPS6013264B2 (ja) | 螢光灯 | |
| CN202111060U (zh) | 一种新型无极灯的结构 | |
| CN203481188U (zh) | 具有辅助加热装置的无极灯灯管 | |
| LU504110B1 (en) | Pulsed vacuum ultraviolet lamp with adjustable pulse width | |
| Hofmann et al. | Fluorescent Lamps | |
| CN205828349U (zh) | 自镇流无极灯 | |
| CN201527962U (zh) | 低频无极灯 | |
| CN201243004Y (zh) | 一种u型无极荧光灯 | |
| US5760547A (en) | Multiple-discharge electrodeless fluorescent lamp | |
| CN201936847U (zh) | 低频无极灯 | |
| CN202871751U (zh) | 一种等离子氙气节能灯管 | |
| KR101039570B1 (ko) | 전기 램프 어셈블리 | |
| CN101246806A (zh) | 一体化螺旋形无极荧光灯 | |
| CN202996786U (zh) | 高频无极荧光灯 | |
| CN203707080U (zh) | 一种陶瓷电极节能灯 | |
| CN201178086Y (zh) | 一体化螺旋形无极荧光灯 | |
| JP4675180B2 (ja) | 放電管 | |
| JP3107269B2 (ja) | 無電極放電灯 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22879844 Country of ref document: EP Kind code of ref document: A1 |