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Deep ultraviolet source of electron beam activated fluorescent powder

A technology of deep ultraviolet light source and electron beam, applied in the field of deep ultraviolet light source, can solve the problems of low UV-LED conversion efficiency, short service life, low application efficiency, etc., and achieve easy mass production, improve light output power, and low cost. Effect

Pending Publication Date: 2018-06-29
上海极优威光电科技有限公司
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Problems solved by technology

[0002] Deep ultraviolet light sources are widely used in the field of radiation sterilization. At present, the most commonly used deep ultraviolet light sources are mercury lamps, but mercury lamps contain mercury, which is easy to cause mercury pollution during production and use. At the same time, mercury lamps are produced by gas discharge. Ultraviolet light, the spectral line of the mercury lamp is a continuous spectrum in the ultraviolet region, and the application efficiency is low. At the same time, due to the high temperature of the electrode when the mercury lamp is working, its service life is relatively short
[0003] UV-LED has the characteristics of mercury-free, energy-saving, and portable. It is a kind of ultraviolet light source that can replace mercury lamps. However, UV-LED conversion efficiency is low, and its high manufacturing cost and low output power limit its use in sterilization and disinfection. field application

Method used

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  • Deep ultraviolet source of electron beam activated fluorescent powder

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0022] The specific implementation manners of the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0023] refer to figure 1 , the deep ultraviolet light source for electron beam excitation of phosphor powder in the embodiment of the present application inclu...

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Abstract

The invention relates to the field of ultraviolet sources, and in particular relates to a deep ultraviolet source of electron beam activated fluorescent powder. The electron beam activated fluorescentpowder comprises a fluorescent screen, an electronic gun and a glass shell, wherein the fluorescent screen comprises quartz sand and an ultraviolet fluorescent layer coated to the quartz glass; the electronic gun is arranged in the glass shell, electron beams generated by the electronic gun faces the ultraviolet fluorescent powder layer, and the ultraviolet fluorescent powder layer sends out ultraviolet light through the quartz sand under electron beam activation; and the fluorescent screen is hermetically connected to the glass shell through transitional glass. The deep ultraviolet source provided by the invention is free from pollution, low in cost and easy for scaled production.

Description

technical field [0001] The present application relates to the field of ultraviolet light sources, in particular to a deep ultraviolet light source for electron beam excitation of fluorescent powder. Background technique [0002] Deep ultraviolet light sources are widely used in the field of radiation sterilization. At present, the most commonly used deep ultraviolet light sources are mercury lamps, but mercury lamps contain mercury, which is easy to cause mercury pollution during production and use. At the same time, mercury lamps are produced by gas discharge. For ultraviolet light, the spectral line of the mercury lamp is a continuous spectrum in the ultraviolet region, and the application efficiency is low. At the same time, because the electrode temperature of the mercury lamp is high during operation, its service life is relatively short. [0003] UV-LED has the characteristics of mercury-free, energy-saving, and portable. It is a kind of ultraviolet light source that c...

Claims

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Application Information

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IPC IPC(8): H01J61/36H01J61/44
CPCH01J61/361H01J61/44
Inventor 赵健夏忠平朱滨
Owner 上海极优威光电科技有限公司
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