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A device and method for generating a high-flux planar light source

A flat light source, high-flux technology, applied in electrical components, plasma, etc., can solve the problems of uneven light emission, low light source power, short life, etc., and achieve the effect of enhancing luminous efficiency, increasing current density, and improving uniformity

Inactive Publication Date: 2016-06-22
UNIV OF SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] Aiming at the problems of low light source power, uneven luminescence, and short lifespan in the prior art, the present invention proposes a method for generating a high-power, high-flux, and uniformly irradiated light source and a high-flux light source device

Method used

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  • A device and method for generating a high-flux planar light source
  • A device and method for generating a high-flux planar light source
  • A device and method for generating a high-flux planar light source

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Embodiment

[0066] The main structural dimensions of the device: rod-shaped cathode 1 has a length of 150mm and a diameter of 18mm; the inner diameter of the anode cylinder 2 is 40mm, and the inner length of the arc chamber is 300mm.

[0067] Electrode material: Rod cathode 1 is lanthanum tungsten (containing 3% lanthanum oxide); anode cylinder 2 is T2 copper.

[0068] Inflatable pressure: 0.5Mpa argon.

[0069] Axial magnetic field: 0.1T.

[0070] Arc current: 500A; arc voltage: 70V, arc power 35kW, arc radiation power over 10kW.

[0071] Arc plasma form: the arc plasma 3 is a uniform "disk-shaped" light-emitting surface that fills the cross-section of the arc chamber; the cathode emitter 4 presents a diffuse "ring-shaped" arc root. Such as Figure 8 shown.

[0072]Compared with the "point" light source of the short-arc xenon lamp, the planar light source of the present invention increases the light-emitting area and improves the total flux of radiated light; The body increases the ...

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Abstract

The invention provides a device and method for generating a high-flux planar light source. The electrode of the device is composed of a cylindrical anode and a coaxially arranged circular rod-shaped cathode. One end of the anode cylinder is closed, and the other end is made of quartz Transmission window air seal; the anode cylinder wall near the cathode emitting end has high-temperature gas outflow holes; the anode cylinder wall on both sides has cold gas inflow holes; the anode cylinder is filled with high-pressure inert gas; An axial magnetic field is applied in the cylinder; a DC constant current power supply is applied between the anode cylinder and the cathode, and an arc is ignited between the cathode emission end surface and the inner wall surface of the anode cylinder. The generation method is to drive the arc rotation and gas flow organization through the magnetic field, control the arc plasma configuration, the cathode arc root and the anode arc root configuration, and change the plasma configuration from the short-arc xenon lamp "bell jar shape" to "disk shape". ; The present invention limits the expansion of the plasma in the axial direction, increases the radial current density, and enhances the luminous power and luminous efficiency.

Description

technical field [0001] The invention belongs to the technical field of gas discharge light sources, and specifically relates to a device and method for generating high-flux planar light sources, which are used to generate high-flux continuous irradiated light as high-flux planar light irradiation and high-flux solar simulation device light source. Background technique [0002] High-flux light sources generate high temperatures by directly irradiating the surface of devices, creating extreme high-temperature conditions in various environments and atmospheres. Scientific instruments, and have a special role in the production of many special materials (such as nano-materials, high-temperature-resistant materials, etc.). At present, the main ways to generate continuous high-flux irradiated light include: focusing sunlight directly outdoors through a sun tracking focusing system, and using artificial light sources that form an array to focus. Most of the latter use high-voltage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/24H05H1/50
Inventor 夏维东王城胡芃夏维珞
Owner UNIV OF SCI & TECH OF CHINA
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