A light source of UHF electrodeless discharge lamp

An ultra-high frequency, discharge lamp technology, applied in discharge lamps, electric light sources, light sources, etc., can solve the problems of low-voltage smooth start, long light source life, high emission intensity, etc., to achieve high output intensity, long light source life, and emission intensity big effect

Active Publication Date: 2008-07-09
北京东西分析仪器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, the existing electrodeless discharge light source cannot simultaneously meet the requirements of high stability, small self-absorption, high emission intensity, long life of the light source, and smooth start-up at low voltage.

Method used

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  • A light source of UHF electrodeless discharge lamp
  • A light source of UHF electrodeless discharge lamp
  • A light source of UHF electrodeless discharge lamp

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Embodiment Construction

[0026] In order to further illustrate the ultra-high frequency electrodeless gas discharge light source of the present invention, a more detailed description will be given below in conjunction with examples.

[0027] Fig. 2 is a schematic structural view of the ultra-high frequency electrodeless gas discharge light source of the present invention, the ultrahigh frequency electrodeless light source is composed of an electrodeless discharge lamp 4, an induction coil 2, an insulating frame 1 and a circuit board 3, and the electrodeless discharge lamp 4 is placed on a hollow insulating frame 1 center, the insulating frame 1 is covered with an induction coil 2, the induction coil 2 is connected to the circuit board 3, the insulating frame 1 is mounted on the insulating support 6, and is connected with the base 8 by fixing screws 7,

[0028] The electrodeless discharge lamp consists of a quartz glass tube with a diameter of 13mm and a length of 40-60mm, which is evacuated and filled ...

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Abstract

The invention relates to an ultra-high frequency electrodeless discharge light source, which is composed of an electrodeless discharge lamp, an induction coil and a circuit board of an ultra-high frequency generation circuit, the electrodeless discharge lamp is arranged at the center of a hollow insulating frame, the outside of the insulating frame is sheathed with the induction coil, the induction coil is connected with the circuit board of an ultra-high frequency generator, the electrodeless discharge lamp is filled with hydrogen, deuterium and inert gas or the mixing gas in a sealed glass or quartz tube, the ultra-high frequency generator works at 50MHz to 150MHz and utilizes the gas in an ultra-high frequency ionization lamp for light emission. The ultra-high frequency electrodeless discharge lamp light source of the invention has high stability, small self-absorption, great emission intensity and long service life of the light source, the invention can be smoothly started at the low pressure, and can be used as the light source of a gas chromatography photoionization detector, a background light source of an atomic absorption spectrometer, a photoionization source of a mass spectrometer and so on, and the invention can be further used for generating the ozone for light cleaning, light oxidation, water purification and other treatments.

Description

technical field [0001] The invention relates to a special light source, in particular to an ultra-high frequency electrodeless discharge lamp light source for test equipment Background technique [0002] The English name of the electrodeless discharge lamp is "Electrodeless Discharge Lamp", also known as an external electrode lamp (External Electrode Lamp). Since there is no filament or electrode entering the bulb, there will be no failures such as air leakage or filament failure, so the life is particularly long. These lamps produce a high-intensity spectrum with narrow lines and no self-absorption. [0003] High-frequency gas discharge can be divided into three cases: ω<<υ, ω≌υ, and ω>>υ according to the relative magnitude of the angular frequency ω of the external high-frequency electric field and the effective electron collision frequency υ. These three cases also exist for the excitation of electrodeless gas discharge lamps. [0004] At present, the commer...

Claims

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Application Information

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IPC IPC(8): H01J65/04H05B41/14
Inventor 李选培
Owner 北京东西分析仪器有限公司
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