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High brightness electrode for super high pressure mercury lamp

A high-brightness, ultra-high-voltage technology, used in electrode system manufacturing, discharge tube/lamp manufacturing, gas discharge lamp components, etc. And the performance improvement of high current, fine discharge arc and long service life

Inactive Publication Date: 2006-08-23
王国华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the distance between the two electrodes increases, the discharge arc becomes longer, the voltage of the lamp increases, the focal point changes, the arc becomes thicker, and the brightness of the lamp decreases.

Method used

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  • High brightness electrode for super high pressure mercury lamp
  • High brightness electrode for super high pressure mercury lamp

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specific Embodiment approach

[0013] figure 1 It shows that a specific embodiment of the present invention is: a high-brightness electrode for an ultra-high pressure mercury lamp, comprising a rod-shaped tungsten electrode (1) and a coil (2) on the discharge end side of the rod-shaped tungsten electrode (1) The discharge end of the electrode (1) is a cone-shaped electrode tip (11), and the electrode tip (11) is formed by welding the discharge end with tungsten solder by means of argon arc welding.

[0014] figure 2 Shown, during use, two electrodes 1 of the present invention are relatively fixed on both sides of the arc tube 3 by using the prior art, so that the pole tips of the two electrodes are opposite, and mercury, Argon and tungsten circulating gases are sufficient.

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Abstract

Present invention discloses a high-brightness electrode whose discharge end being cone shape electrode pole tip, said pole tip made of tungsten by argon arc welding. Said High-brightness electrode is used in ultra-pressure mercury lamp with generated thin electric arc, high brightness, and long service life.

Description

[0001] Field [0002] The invention relates to a high-brightness electrode used in an ultra-high pressure mercury lamp. Background technique [0003] Ultra-high pressure mercury lamp is an ideal point light source. This lamp produces strong light in the smallest space, and has rich light color and high color temperature. It is mainly used in projectors with high brightness output of small liquid crystal panels and other projection technology fields. . The ultra-high pressure mercury lamp uses a mercury-filled arc tube to generate a high-pressure mercury vapor discharge to obtain a visible light source. The electrodes of the high-pressure mercury lamp are made of metal tungsten, and the front end of the tungsten electrode is the discharge end. The discharge end of the existing tungsten electrode is flat or arc-shaped instead of conical, and the discharge arc is thick, low-density, and low-brightness; and The discharge end has not been specially treated, and its density is low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/04H01J9/02
Inventor 王国华
Owner 王国华
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