LU504109B1 - 2650kHz RADIO-FREQUENCY INDUCTIVE VACUUM ULTRAVIOLET LAMP - Google Patents
2650kHz RADIO-FREQUENCY INDUCTIVE VACUUM ULTRAVIOLET LAMP Download PDFInfo
- Publication number
- LU504109B1 LU504109B1 LU504109A LU504109A LU504109B1 LU 504109 B1 LU504109 B1 LU 504109B1 LU 504109 A LU504109 A LU 504109A LU 504109 A LU504109 A LU 504109A LU 504109 B1 LU504109 B1 LU 504109B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- radio frequency
- vacuum ultraviolet
- khz
- coupler
- bulb
- Prior art date
Links
- 230000001939 inductive effect Effects 0.000 title claims abstract description 16
- 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
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 13
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 13
- 229910052743 krypton Inorganic materials 0.000 claims abstract description 12
- 230000005284 excitation Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 6
- 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
- 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
- 230000035699 permeability Effects 0.000 abstract description 7
- 239000000696 magnetic material Substances 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000011261 inert gas Substances 0.000 abstract description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 229910052753 mercury Inorganic materials 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
- 238000010586 diagram Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
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
Abstract
A 2650 kHz radio frequency inductive vacuum ultraviolet lamp comprises a 2650 kHz radio frequency signal generator, an aluminium alloy rod of a radio frequency coupler, an aluminium alloy base, a hollow cylindrical high-temperature glass bulb, an excitation coil, a ferrite core and a window piece capable of transmitting vacuum ultraviolet light. The aluminium alloy rod of the radio frequency coupler, the excitation coil and the ferrite core constitute the radio frequency coupler. The lamp adopts a technology which uses a 2650 kHz radio frequency coupled with permeability magnetic materials to generate vacuum ultraviolet light. The 2650 kHz radio frequency signal generator and the radio frequency coupler are a radio frequency signal generator and a coupler of a commercial illuminating electrodeless lamp. Argon, krypton and xenon from 30 Pa to 300 Pa or mixed gas of argon, krypton and xenon with helium is encapsulated in the bulb. The radio frequency signal generator generates radio frequency current which flows through the excitation coil wrapped on the ferrite core, to generate an induced magnetic field to excite inert gas in the bulb to form plasma discharge, and vacuum ultraviolet light generated by plasma is outputted through the window piece capable of transmitting vacuum ultraviolet light.
Description
2650 kHz RADIO-FREQUENCY INDUCTIVE VACUUM ULTRAVIOLET LAMP
LU504109
The present disclosure belongs to the technical field of electronics, and can be used as a photoionization source of a mass spectrometer detector, and a vacuum ultraviolet light source for wastewater and waste gas treatment, photoinduced surface modification and other related fields.
A radio-frequency excited krypton lamp outputs 116.5/123.6 nm vacuum ultraviolet light, which can effectively ionize most volatile organic compounds and is commonly used as a vacuum ultraviolet photoionization source for the mass spectrometer. The radio-frequency excited krypton lamp comprises a cylindrical bulb, a radio frequency signal generator and a radio frequency coupler. Krypton gas and buffer gas as light-emitting media are encapsulated in a bulb of the krypton lamp. A window piece capable of transmitting vacuum ultraviolet light is arranged at one end of the bulb. The radio frequency coupler has the function of transferring radio frequency energy outputted by the radio frequency signal generator to the light-emitting media, to form a plasma that can emit the vacuum ultraviolet light. The radio frequency coupler has two main coupling modes: capacitive coupling and radio frequency inductive coupling. A capacitive coupler comprises two semi-cylindrical electrodes covered on both sides of the cylindrical bulb. The two semi-cylindrical electrodes are respectively connected to two radio frequency output ends with a phase difference of 180 degrees outputted by the radio frequency signal generator. When radio frequency voltage is applied to the two semi-cylindrical electrodes, an alternating electric field between the electrodes excites the light-emitting media in the bulb and generates the plasma. Electrons in the plasma acquire kinetic energy under the action of the alternating electric field and collide with krypton atoms to produce excited krypton atoms. When the excited krypton atoms transition to a ground state, the vacuum ultraviolet light is emitted. A radio frequency inductive coupler of the radio frequency krypton lamp is a set of coils wrapped around the cylindrical bulb. When radio frequency current flows through the coils, the induced magnetic field generated by radio frequency excites the light-emitting media in the bulb, to produce plasma luminescence. Relative to mercury vapor which is a light-emitting medium of a fluorescent illuminating lamp, the krypton gas is difficult to excite into plasma. The krypton lamp as the vacuum ultraviolet light source is generally excited by radio frequency of ten megahertz or higher.
High-frequency permeability magnetic materials can effectively increase the permeability and reduce the volume of inductors. Combined with the high-frequency permeability magnetic materials, low-frequency radio frequency current can also generate an induced magnetic field that can form the plasma. An illuminating electrodeless lamp excited by 2650 kHz radio frequency is a mature commercial illuminating product, and the illuminating electrodeless lamp, 5041 09 comprises three parts: a radio frequency signal generator, a coupler and a bulb. The radio frequency signal generator produces 2650 kHz radio frequency current. The coupler is a ferrite core wrapped by the coils. The ferrite core is a high-frequency permeability magnetic material that can operate at 2650 kHz radio frequency. The bulb of the illuminating electrodeless lamp is generally a hollow cylindrical glass bulb containing certain inert buffer gas and solid mercury, and the solid mercury is used for producing mercury vapor of the light-emitting medium. The inner surface of the bulb has a layer of fluorescent substance used for converting the ultraviolet light emitted by the excited mercury atoms produced by the discharge into visible light. Relative to the traditional incandescent lamp, the illuminating electrodeless lamp is a novel green light source with higher photovoltaic conversion efficiency and longer service life. Relative to the traditional radio-frequency excited krypton lamp, the 2650 kHz frequency excited illuminating electrodeless lamp as a large-scale commercial illuminating product has low price and mature technology. However, this technology which uses 2650kHz radio frequency coupled with the permeability magnetic materials has not been used for forming a vacuum ultraviolet light source.
In order to overcome the shortcomings of the vacuum ultraviolet light source in the prior art, the present disclosure provides a 2650kHz radio-frequency inductive vacuum ultraviolet lamp. The vacuum ultraviolet lamp uses a radio frequency signal generator and a coupler of a commercial illuminating electrodeless lamp, and is combined with a hollow cylindrical high- temperature glass bulb and a window piece capable of transmitting vacuum ultraviolet light, which can produce high-flux vacuum ultraviolet light and greatly reduce the cost of the vacuum ultraviolet light source.
The technical solution adopted by the patent of the present disclosure is: 1. the 2650kHz radio-frequency inductive vacuum ultraviolet lamp has a hollow cylindrical high-temperature glass bulb; 2. the front end of the hollow cylindrical high-temperature glass bulb is a window piece capable of transmitting vacuum ultraviolet light, which is sealed by a high-temperature binder; 3. the rear end of the hollow cylindrical high-temperature glass bulb is an aluminium alloy base of the vacuum ultraviolet lamp bonded by a binder; 4, the cylindrical high- temperature glass bulb is filled with certain inert gas as the light-emitting media; 5. the radio frequency coupler comprises a ferrite core wrapped with coils and an aluminium alloy rod; 6. the radio frequency coupler is fixed coaxially in the centre of the vacuum ultraviolet bulb; 7. the 2650 kHz radio frequency signal generator is a radio frequency signal generator of the commercial illuminating electrodeless lamp; 8. the radio frequency current generated by the radio frequency signal generator flows through the coils wrapped on the ferrite core through wires. Under the enhancement action of the ferrite core, a radio frequency inductive magnetic field excites the light-emitting media in the hollow cylindrical high-temperature glass bulb, to LU504109 generate vacuum ultraviolet light.
The present disclosure has the beneficial effect of providing a vacuum ultraviolet lamp which uses 2650kHz radio frequency combined with the radio frequency coupling technique of the permeability magnetic materials for the application field of the vacuum ultraviolet light. The lamp has low cost and simple structure.
Fig. 1 is a structural schematic diagram of a 2650kHz radio-frequency inductive vacuum ultraviolet lamp according to the present disclosure, wherein: 1. 220V Alternating Current (AC) wire, 2. 2650 kHz radio frequency signal generator, 3. radio frequency wire, 4. aluminium alloy rod of radio frequency coupler, 5. aluminium alloy base, 6. hollow cylindrical high-temperature glass bulb, 7. excitation coil, 8. ferrite core, 9. window piece capable of transmitting vacuum ultraviolet light.
Embodiments of the present disclosure are described in detail below in combination with the drawings. The embodiments are implemented according to the technical solution of the present disclosure, and the protection scope of the present disclosure is not limited to the following embodiments.
As shown in figure 1, the 2650kHz radio frequency inductive vacuum ultraviolet lamp comprises a 220V AC wire 1, a 2650 kHz radio frequency signal generator 2, a radio frequency wire 3, an aluminium alloy rod 4 of a radio frequency coupler, an aluminium alloy base 5, a hollow cylindrical high-temperature glass bulb 6, an excitation coil 7, a ferrite core 8 and a window piece capable of transmitting vacuum ultraviolet light 9. The 2650kHz radio frequency inductive vacuum ultraviolet lamp operates as follows:
Step 1: connecting the 220V AC wire 1 with a 220V power socket;
Step 2: generating 2650 kHz radio frequency current by the 2650 kHz radio frequency signal generator 2;
Step 3: 2650 kHz radio frequency current flowing through the excitation coil 7 via the radio frequency wire 3;
Step 4: under the action of the ferrite core 8, generating an induced magnetic field of sufficient intensity by the radio frequency current;
Step 5: exciting inert gas in the hollow cylindrical high-temperature glass bulb 6 by the induced magnetic field to form plasma discharge;
Step 6: outputting vacuum ultraviolet light generated by plasma discharge through the window piece 9 capable of transmitting vacuum ultraviolet light.
Claims (5)
1. A 2050 kHz radio frequency inductive vacuum ultraviolet lamp, comprising a 220V alternating current wire, a 2650 kHz radio frequency signal generator, a radio frequency wire, an aluminium alloy rod of a radio frequency coupler, an aluminium alloy base, a hollow cylindrical high-temperature glass bulb, an excitation coil, a ferrite core and a window piece capable of transmitting vacuum ultraviolet light, wherein the aluminium alloy rod of the radio frequency coupler, the ferrite core and the excitation coil constitute the radio frequency coupler; the hollow cylindrical high-temperature glass bulb and the window piece capable of transmitting vacuum ultraviolet light are bonded by a high temperature sealant to form a vacuum ultraviolet lamp bulb; and the radio frequency coupler, the aluminium alloy base and the bulb of the vacuum ultraviolet lamp are closely connected coaxially.
2. The 2650 kHz radio frequency inductive vacuum ultraviolet lamp according to claim 1, wherein the 2650 kHz radio frequency signal generator is a 2650 kHz radio frequency signal generator of a commercial illuminating electrodeless lamp.
3. The 2650 kHz radio frequency inductive vacuum ultraviolet lamp according to claim 1, wherein the radio frequency coupler is a 2650 kHz radio frequency coupler of a commercial illuminating electrodeless lamp.
4. The 2650 kHz radio frequency inductive vacuum ultraviolet lamp according to claim 1, wherein any one or two of argon, krypton and xenon from 30 Pa to 300 Pa, or mixed gas of any one or two of argon, krypton and xenon with helium from 30 Pa to 300 Pa is encapsulated in the bulb of the vacuum ultraviolet lamp.
5. The 2650 kHz radio frequency inductive vacuum ultraviolet lamp according to claim 1, wherein the hollow cylindrical high-temperature glass bulb is processed from high temperature glass.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210389165.7A CN116959954A (en) | 2022-04-14 | 2022-04-14 | 2650kHz radio frequency induction vacuum ultraviolet lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU504109B1 true LU504109B1 (en) | 2023-07-03 |
Family
ID=85987260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504109A LU504109B1 (en) | 2022-04-14 | 2022-05-19 | 2650kHz RADIO-FREQUENCY INDUCTIVE VACUUM ULTRAVIOLET LAMP |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN116959954A (en) |
| LU (1) | LU504109B1 (en) |
| WO (1) | WO2023060894A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201355604Y (en) * | 2008-12-30 | 2009-12-02 | 房时洪 | Electrodeless ultraviolet lamp |
| CN201425934Y (en) * | 2009-05-13 | 2010-03-17 | 吴帆 | High-frequency induction ultraviolet lamp |
| CN102324379A (en) * | 2011-08-15 | 2012-01-18 | 来安县腾升电器有限公司 | Ultraviolet bactericidal lamp |
| CN103325660B (en) * | 2012-03-20 | 2017-08-04 | 北京航天宏达光电技术股份有限公司 | RF electrodeless ultraviolet source |
| CN102664135A (en) * | 2012-05-25 | 2012-09-12 | 复旦大学 | High-intensity inductively coupled ultraviolet source |
| CN112635294B (en) * | 2020-12-22 | 2022-04-19 | 中国科学技术大学 | Ultra-high brightness vacuum ultraviolet lamp |
-
2022
- 2022-04-14 CN CN202210389165.7A patent/CN116959954A/en active Pending
- 2022-05-19 LU LU504109A patent/LU504109B1/en active IP Right Grant
- 2022-05-19 WO PCT/CN2022/093725 patent/WO2023060894A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN116959954A (en) | 2023-10-27 |
| WO2023060894A1 (en) | 2023-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20230703 |