Ultraviolet cathode ray light source

A cathode ray and outer cathode technology, which is applied in the field of ultraviolet light sources, can solve the problems of serious thermal effect and low electro-optical conversion efficiency of ultraviolet LEDs.

Inactive Publication Date: 2017-02-15
DONGGUAN INST OF OPTO ELECTRONICS PEKING UNIV
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Problems solved by technology

[0003] With its high efficiency, energy saving, environmental protection and long life, UV LED is gradually becoming the main light source in the field of ultraviolet light application. However, with the shortening of LED wavelength, the electro-optical conversion efficiency of ultraviolet LED is lower, and the thermal effect is more serious.

Method used

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  • Ultraviolet cathode ray light source

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Embodiment Construction

[0016] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.

[0017] as attached figure 1 As shown, the present invention discloses an ultraviolet cathode ray light source, including an electron emission device 1, an electron multiplier 3, an electric field 4, a magnetic field 5, a high reflection film 6, a light-emitting chip 7, and an ultraviolet light anti-reflection film 9 arranged in sequence And the light-emitting window 10, the light-emitting chip 7 is excited by electrons to emit light, and the electrons emitted by the electron emission device pass through the electron multiplier 3, the electric field 4, the magnetic field 5, and the high-reflection film 6 in sequence, and then enter the light-emitting chip 7 to excite the light-emitting chip to emit light. The window shoots out. The light-emitting chip can be made of quantum well structure material, q...

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Abstract

The present invention discloses an ultraviolet cathode ray light source. The ultraviolet cathode ray light source comprises an electron emission device, an electron multiplier, an electric field, a magnetic field, a high-reflective film, a luminous chip, an ultraviolet light antireflection film and a light outlet window. The luminous chip gives out light through electron excitation. The electrons emitted by the electron emission device pass through the electron multiplier, the electric field, the magnetic field and the high-reflective film to enter the luminous chip to excite the luminescence of the luminous chip, the light ray is emitted from the light outlet window, and the electron emission device is a field emission device and a heat emission device. The ultraviolet cathode ray light source realizes the purpose that the power and the light beam size of the cathode ray ultraviolet source can be adjusted.

Description

technical field [0001] The invention relates to an ultraviolet light source, in particular to a continuously adjustable ultraviolet light source capable of emitting light through cathode rays. Background technique [0002] Ultraviolet light sources have important applications in fields such as sterilization and disinfection, UV glue curing, printing, and PCT exposure, especially miniaturized ultraviolet light sources, which have important applications in the fields of drunk driving investigation, legal criminal investigation and other fields. At present, the common ultraviolet light sources in the industrial field generally use high-pressure mercury lamps and ultraviolet light-emitting diode (UVLED) light sources. [0003] With its high efficiency, energy saving, environmental protection and long life, UV LED is gradually becoming the main light source in the field of ultraviolet light application. However, as the wavelength of LED becomes shorter, the electro-optical conver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J63/06
CPCH01J63/06
Inventor 李成明王琦王新强张国义
Owner DONGGUAN INST OF OPTO ELECTRONICS PEKING UNIV
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