High-light-efficiency low-working-voltage gas discharging lamp-tube and mfg technology thereof

A gas discharge lamp, working voltage technology, applied in the direction of discharge lamps, discharge tubes, electrical components, etc., can solve the problem of little improvement in the inner surface of the glass bulb and the structure of the phosphor layer, and achieve the effect of reducing the driving voltage

Inactive Publication Date: 2005-12-21
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main work for the improvement of the lamp is the cathode material and shape of the lamp, the gas formula, the phosphor material, ...

Method used

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  • High-light-efficiency low-working-voltage gas discharging lamp-tube and mfg technology thereof
  • High-light-efficiency low-working-voltage gas discharging lamp-tube and mfg technology thereof
  • High-light-efficiency low-working-voltage gas discharging lamp-tube and mfg technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A cold-cathode fluorescent lamp with high luminous efficiency and low working voltage that can be used as a liquid crystal backlight source or lighting. It includes a lamp tube glass bulb 2 with both ends closed. Both ends of the tube glass bulb 2 are provided with internal cold electrodes 4 made of metals such as molybdenum, nickel, tungsten, etc., and the discharge gas 3 composed of neon, argon and mercury is filled in the lamp tube glass bulb 2, and in the lamp tube glass bulb 2 The inner surface is provided with a high secondary electron emission material dielectric layer 5, the above-mentioned high secondary electron emission material dielectric layer 5 is a magnesium oxide layer, an aluminum oxide layer or a magnesium aluminate layer, and the high secondary electron emission material dielectric layer 5 can also be other High secondary electron emission material, the glass bulb 2 of the above-mentioned lamp tube can be straight, curved, spiral or other shapes.

Embodiment 2

[0039] A fluorescent tube with high luminous efficiency and low working voltage external electrode that can be used as a liquid crystal backlight source or lighting. It includes a lamp tube glass bulb 2 with both ends closed. There are external electrodes 4 made of graphite on the outer surfaces of both ends of the tube glass bulb 2, and the discharge gas 3 composed of neon, argon and mercury is filled in the lamp tube glass bulb 2, and on the inner surface of the lamp tube glass bulb 2 A high secondary electron emission material dielectric layer 5 is provided on the top, and the above high secondary electron emission material dielectric layer 5 is a magnesium oxide layer, an aluminum oxide layer or a magnesium aluminate layer, and the high secondary electron emission material dielectric layer 5 can also be other high secondary electron emission material dielectric layers. Electron emission material, the glass bulb 2 of the above-mentioned lamp tube can be straight, curved, spi...

Embodiment 3

[0041] A preparation process for manufacturing the above-mentioned high-luminous-efficiency low-voltage external-electrode fluorescent lamp tube: take the cleaned and dried glass bulb of the lamp tube with both ends open, mix magnesium acetate and an organic solvent on its inner surface to form a slurry and coat it Baking is carried out, magnesium acetate and organic solvent are decomposed, and the generated magnesium oxide dielectric layer is attached to the inner surface of the glass bulb, and then a phosphor layer 1 is arranged on the inner wall of the bulb bulb of the lamp tube to seal one end of the bulb bulb of the lamp tube, The other end is sealed with a glass exhaust pipe. The gas in the pipe is discharged through the exhaust pipe and filled with discharge gas. Graphite milk is used to make discharge electrodes, which are used as external electrodes after being baked. The glass bulb of the above-mentioned lamp tube can be straight, curved, spiral or other shapes, and t...

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PUM

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Abstract

Dielectric layer in material of high secondary electron emission is prepared on inner surface inside glass bulb of luminous tube. Luminescent powder layer is coated on inner wall of the glass bulb. Electrode is setup at two ends of the glass bulb and sealed. One end of the glass bulb is connected to exhaust pipe. After expelling out gas in tube, and filling in a discharge gas, the exhaust pipe is sealed. The disclosed technique is also applicable to gaseous discharge lamps such as hot-cathode fluorescent lamp, cold-cathode fluorescent lamp, energy-saving lamp, outer electrode fluorescent lamp, xenon lamp etc.

Description

technical field [0001] The invention relates to a gas discharge lamp with high light efficiency and low working voltage and a preparation process thereof, which belongs to the technical field of lighting equipment manufacturing. Background technique [0002] Gas discharge lamp is a light source in which discharge gas, such as inert gas, mercury, etc., is injected into the lamp tube under the action of a certain electric field and magnetic field to form gas discharge luminescence or ultraviolet rays emitted by gas discharge excite phosphor powder to emit light. It is the current daily lighting, instrument lighting , Large square lighting and aircraft, vehicle lighting are widely used as a light source, it has a variety of structural forms, such as fluorescent lamps using hot cathodes, energy-saving lamps, fluorescent lamps using cold cathodes, external electrode fluorescent lamps with electrodes on the outside of the lamp tube, internal Halogen discharge lamps and so on. Sin...

Claims

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Application Information

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IPC IPC(8): H01J5/08
Inventor 张晓兵英达正
Owner SOUTHEAST UNIV
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