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Mercury-free cold cathode fluorescent lamp

A cold cathode fluorescent lamp and electrode technology, applied in the field of fluorescent lamps, can solve the problems of high inflation pressure and large working current, and achieve the effects of high working frequency, long life and small damage

Inactive Publication Date: 2006-06-07
涂延华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The greater the working current, the greater the inflation pressure

Method used

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  • Mercury-free cold cathode fluorescent lamp

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Experimental program
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Embodiment Construction

[0011] exist figure 1 Among them, nickel electrodes (4) (4a) with a thickness of 0.2 mm and coated with electronic powder are 1 mm apart, respectively welded on at least two guide wires (9) (9a) of the stem (5) and an inductive ballast (6), the lead wires (10) (10a) and the lamp cap (8) are electrically connected in sequence. Inside the glass bulb (1) is a lamp cavity (3) filled with nitrogen or a mixture of nitrogen and inert gas, for example, a bulb argon (containing 16% nitrogen) of 1.8Kpa is filled. After switching on the power supply, the current is limited by the ballast (6), for example, the operating current is 15 milliamps, so that the electrode (4) (4a) fixed on the guide wire (9) (9a) of the stem (5) Glow discharge occurs between the lamp cavity (3) because there is nitrogen or a mixture of nitrogen and inert gas in the lamp chamber (3), and the cathode negative glow on the surface of the electrode (4) (4a) radiates strong 337nm and 357nm ultraviolet rays of nitrog...

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Abstract

This invention relates to a Hg-free cold cathode fluorescence lamp emitting visible light utilizing band-A UV-laser fluorescence powder layer generated by the cathode glow when the gas discharges without using Hg, which does not pollute the environment and can be started up instantly.

Description

Technical field [0001] The invention relates to a fluorescent lamp, in particular to a mercury-free cold cathode fluorescent lamp which does not contain mercury in the lamp. Background technique [0002] Cold cathode fluorescent lamps are increasingly widely used in lighting due to their energy saving and long lifespan, and both known cold cathode fluorescent lamps and hot cathode fluorescent lamps contain mercury. When the lamp is ignited, the mercury atoms are excited, and the excited mercury atoms emit 254nm ultraviolet rays, which then excite the fluorescent powder coated on the inner wall of the lamp to produce visible light. However, when the fluorescent lamp is damaged, or the mercury in the lamp during its manufacture will cause serious pollution to the environment. The brightness of the mercury-containing fluorescent lamp is affected by the mercury vapor pressure in the lamp, so the lamp starts slowly, the brightness of the lamp is affected by the ambient temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J61/12H01J61/067H01J61/16H01J61/30H01J61/56H01K1/02H01K1/28H01K1/50H01K1/62
Inventor 涂延华
Owner 涂延华