Microwave excitation device of electrodeless lamp

An excitation device, electrodeless lamp technology, applied to discharge lamps, electrical components, circuits, etc., can solve the problems of difficult coupling control, low excitation efficiency, reduced plasma light source excitation efficiency, etc., and achieves easy operating frequency control and high excitation efficiency. , compact structure

Inactive Publication Date: 2015-01-21
深圳市高斯宝电气技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its size depends on the operating frequency of the excitation microwave, limited to the frequency of the microwave source, it is often difficult to miniaturize the excitation device, and its excitation efficiency is low
[0005] The 201280032914.5 invention patent discloses a transparent waveguide electromagnetic wave plasma light source. By loading the excitation antenna with an alumina block, the excitation volume of the plasma light source is effectively reduc...

Method used

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  • Microwave excitation device of electrodeless lamp
  • Microwave excitation device of electrodeless lamp
  • Microwave excitation device of electrodeless lamp

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] The structure of the electrodeless lamp microwave excitation device in Embodiment 1 of the present invention is as follows figure 1 As shown, it includes an electrodeless lamp 1 , a metal cavity 2 , a dielectric resonator 3 , a microwave input device 4 , a metal shield 5 and a bracket 6 .

[0022] The metal cavity 2 is a cylindrical metal cavity with a microwave input port on the bottom plate 201 and a microwave output port 202a on the top plate 202 .

[0023] The dielectric resonator 3 is a dielectric entity that can resonate at the working frequency, and the constituted medium refers to all solid microwave media, including mica, ceramics, rubber, polystyrene, etc., the specific shape depends on the selected resonance mode, and according to the excitation It is necessary to open a hole in the resonant entity, so that some microwave input devices such as the inner conductor of the axial port can extend into the dielectric resonator, so as to obtain the required coupling...

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PUM

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Abstract

The invention discloses a microwave excitation device of an electrodeless lamp. The microwave excitation device comprises an electrodeless lamp tube, a metal cavity, a dielectric resonator and a microwave inputting device. The metal cavity comprises a microwave inputting opening and a microwave outputting opening. The dielectric resonator is installed inside the metal cavity, microwave energy is fed into the metal cavity from the microwave inputting opening through the microwave inputting device so that the dielectric resonator can resonate, and one end of the electrodeless lamp tube extends into the metal cavity from the microwave outputting opening, makes contact with the dielectric resonator and is excited by microwaves output by the dielectric resonator to emit light. The microwave excitation device of the electrodeless lamp is compact in structure, can easily achieve good microwave inputting matching through adjusting coupling between the microwave inputting device and the dielectric resonator and is high in excitation efficiency, and working frequency is easier to control.

Description

[technical field] [0001] The invention relates to an electrodeless lamp light source, in particular to a microwave excitation device for an electrodeless lamp. [Background technique] [0002] The electrodeless lamp has no built-in electrodes, and the discharge cavity can be sealed with a single material, thus greatly prolonging the life of the electrodeless lamp. The microwave electrodeless discharge lamp is a microwave trigger coupled plasma electrodeless light source (Microwave trigger coupled plasma electrodeless light source) working on the principle of microwave coupling discharge. [0003] Microwave discharge is to feed microwave energy generated by a microwave source such as a magnetron into a resonator through a waveguide or a coaxial line, thereby exciting an electrodeless discharge tube to emit light. During the microwave discharge process, electrons constantly change their direction of motion due to elastic collisions with surrounding particles, and gradually obt...

Claims

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Application Information

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IPC IPC(8): H01J65/04
CPCH01J65/04
Inventor 黄健全丁淑芳夏芬唐政华林海扬阮世良
Owner 深圳市高斯宝电气技术有限公司
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