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Mercury-containing gas discharge tube and suction device thereof

A technology of gas discharge tube and air suction device, which is applied to gas discharge lamps, discharge tubes, parts of gas discharge lamps, etc., can solve problems such as affecting the service life of mercury-containing gas discharge tubes, and achieve improved surface brightness and service life. Effect

Inactive Publication Date: 2004-04-14
DONGGUAN NAM KWONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This seriously affects the service life of the mercury-containing gas discharge tube

Method used

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  • Mercury-containing gas discharge tube and suction device thereof
  • Mercury-containing gas discharge tube and suction device thereof
  • Mercury-containing gas discharge tube and suction device thereof

Examples

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Effect test

example 1

[0052] Straight tube cold cathode fluorescent lamp, the outer diameter of the lamp tube is 2.6 mm, the inner diameter of the lamp tube is 2.0 mm, and the length of the lamp tube is 243 mm. It uses a tungsten, molybdenum, iron, cobalt alloy tube welded on the tungsten wire as a suction device (at the same time as an electrode The role of), alloy cylinder composition range: tungsten + molybdenum (10% ~ 40%), iron + cobalt (60% ~ 90%). The suction device is sealed on the borosilicate glass (hard glass) tube. The inner wall of the glass tube is coated with fluorescent powder with a color temperature of 5800°K, and filled with an appropriate amount of neon-argon mixed gas and mercury vapor. The lamp tube uses a special lighting device. circuit. At the beginning of lighting, the lamp is lit at a working current of 7.5 mA, and the surface brightness of the lamp tube reaches 44000cd / m 2 , the luminous flux reaches 176Lm; the surface brightness of the lamp tube reaches 55000cd / m when ...

example 2

[0054] Straight-tube cold-cathode fluorescent lamp, the outer diameter of the lamp tube is 1.8 mm, the inner diameter of the lamp tube is 1.2 mm, and the length of the lamp tube is 72.5 mm. It uses a tungsten, molybdenum, iron, nickel, cobalt alloy tube welded on the tungsten wire as a suction device (at the same time The role of the electrode), the composition range of the alloy cylinder: tungsten + molybdenum (10% ~ 40%), iron + nickel + cobalt (60% ~ 90%). The suction device is sealed on the borosilicate glass (hard glass) tube. The inner wall of the glass tube is coated with fluorescent powder with a color temperature of 6500°K, and filled with an appropriate amount of neon-argon mixed gas and mercury vapor. The lamp tube uses a special lighting device. circuit. When starting to light the lamp, light it at a working current of 2 mA (normally produced lamps cannot be lit at a working current of 2 mA for a long time), and the surface brightness of the lamp reaches 28930cd / m ...

example 3

[0056] Straight-tube cold-cathode fluorescent lamp, the outer diameter of the lamp tube is 2.6 mm, the inner diameter of the lamp tube is 2.0 mm, and the length of the lamp tube is 243 mm. It uses a tungsten, molybdenum, iron, and cobalt alloy tube welded on the tungsten wire as a suction device (at the same time, the electrode role), alloy cylinder composition range: tungsten + molybdenum (70% ~ 90%), iron + cobalt (10% ~ 30%). The suction device is sealed on the borosilicate glass (hard glass) tube. The inner wall of the glass tube is coated with fluorescent powder with a color temperature of 5800°K, and filled with an appropriate amount of neon-argon mixed gas and mercury vapor. The lamp tube uses a special lighting device. circuit. At the beginning of lighting, the surface brightness of the lamp reaches 44000cd / m under the working current of 7.5mA 2 . After the lamp has been subjected to a life test equivalent to 15,000 hours of normal lighting at an aging current of 15 ...

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Abstract

The invention discloses suction unit including mercury gas discharge tube as well as mercuric gas discharge tube including suction unit. The suction unit comprises at least one alloy body inside the mercuric gas discharge tube. The alloy body is made from material including at least one refractory metal and at least one iron family metal.

Description

technical field [0001] The present invention relates to gas discharge tubes, and more particularly to mercury-containing gas discharge tubes and getter devices therefor. Background technique [0002] Mercury-containing gas discharge tubes are very rich in types, including cold cathode fluorescent lamps (CCFL for short), straight-tube household hot cathode fluorescent lamps (also known as fluorescent lamps), high-pressure mercury lamps, and external electrode fluorescent lamps (EEFL for short). lamp), ultraviolet lamp, high-power mercury rectifier tube, mercury switch tube, etc. These discharge tubes are widely used, such as cold-cathode fluorescent lamps, which have simple structure, thin tube, high surface brightness, small temperature rise and long service life. Therefore, as a novel miniature strong light source, they are widely used in liquid crystal Products such as monitors, scanners, car dashboards and miniature advertising light boxes. [0003] In the prior art, a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J7/18H01J17/24H01J61/00H01J61/067H01J61/20H01J61/26H01J61/72
CPCH01J61/20H01J61/26
Inventor 周成祥周立理
Owner DONGGUAN NAM KWONG ELECTRIC
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