CN2697819Y - Mercury free cold cathode fluorescent lamp - Google Patents
Mercury free cold cathode fluorescent lamp Download PDFInfo
- Publication number
- CN2697819Y CN2697819Y CN 200420021721 CN200420021721U CN2697819Y CN 2697819 Y CN2697819 Y CN 2697819Y CN 200420021721 CN200420021721 CN 200420021721 CN 200420021721 U CN200420021721 U CN 200420021721U CN 2697819 Y CN2697819 Y CN 2697819Y
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- CN
- China
- Prior art keywords
- mercury
- cold cathode
- fluorescent lamp
- cathode fluorescent
- free cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The utility model relates to a non-mercury cold cathode fluorescent lamp which does not use mercury but uses the ultraviolet fluorescent powder excitation layers produced by cathode negative glowing for emitting visual light at the time of gas discharge. The non-mercury cold cathode fluorescent lamp does not produce mercury pollution to environment and can be instantly started, the brightness is not affected by environment temperature, and the service life is long. The utility model can be used for illumination, advertisements and decoration, and can also be used for displaying large-screen pictures.
Description
Affiliated technical field
The utility model relates to a kind of cold-cathode fluorescence lamp, relates in particular to mercury-free cold cathode fluorescent lamp not mercurous in a kind of lamp.
Background technology
Energy-conservation and life-span longly just is applied to illumination by increasingly extensive to cold-cathode fluorescence lamp because of it, and all contains mercury in known cold-cathode fluorescence lamp and the hot-cathode fluorescent lamp.The combustion back mercury atom that uses as a lamp is excited, and the ultraviolet ray that the mercury atom that excites sends excites the fluorescent material that is coated on the lamp inwall to produce visible light again.But after fluorescent lamp damaged, the mercury in the lamp can produce severe contamination to environment.The brightness that contains hg fluorescent lamp is influenced by the interior mercury vapor pressure of lamp, so lamp starts slowly, the brightness of lamp is influenced by ambient temperature, and the consumption of mercury can influence the lamp life-span in the lamp.
Summary of the invention
In order to overcome the pollution of mercury, the utility model aims to provide and does not a kind ofly use mercury, and the ultraviolet ray excited fluorescent material that is coated on the lamp inwall that utilizes gas discharge to produce produces the mercury-free cold cathode fluorescent lamp with high light photoelectric transformation efficiency of visible light.
The technical scheme that its technical problem that solves the utility model adopts is: in glass bulb, seal wire, ballast, lead-in wire and the lamp holder of electrode, stem stem are electrically connected in proper order, are the lamp chamber of containing nitrogen or nitrogen and inert gas gaseous mixture in the glass bulb.After the energized, place restrictions on electric current by ballast, be fixed between the electrode on the seal wire of stem stem glow discharge takes place, because the gas in the lamp chamber of containing nitrogen or nitrogen and inert gas gaseous mixture is the gaseous mixture of nitrogen or nitrogen and inert gas, so give off the ultraviolet ray of the strong 310nm-400nm of nitrogen-atoms during discharge at the negative brightness of the negative electrode of electrode surface, ultraviolet ray excited coated makes it send visible light at the phosphor powder layer that glass bulb inner surface and excitation wavelength meet 310nm-400nm, and cold-cathode fluorescence lamp is lighted.Energy loss when reducing discharge in order to improve luminous efficiency, electrode can be selected the low metal material of work function or coated electronics powder on metal.
The shape of glass bulb can be a ball-type, also can be the candle type, also can be the pears type, also can be mushroom-shaped, also can be tapered and disciform, is fit to each one hobby.Glass bulb can be transparent, also can be painted and scattering, to be used for various occasions.Glass bulb can be directly installed on the lamp holder, and small-sized ballast is placed in the lamp holder; Or the shell of settling ballast is arranged between glass bulb and lamp holder to hold bigger ballast.Ballast can be a resistance, also can be an electric capacity, also can be an inductance, also can mix connection in series-parallel and form by them, and also can be the ballast of an electronics; Discharging current when being used to limit lamp work.The shape of electrode can be plate, also can be dome-type, also can be the screw rod type, also can be reticular pattern with cylinder type, adapt to various glass bulbs.Electrode is the electrode of metal, also can be the metal electrode of coated, lining; Energy loss when reducing discharge in order to improve luminous efficiency, electrode can be selected the low metal material of work function or coated electronics powder on metal.
The beneficial effects of the utility model are, have adopted gas discharge to produce ultraviolet ray excited fluorescent material and have sent visible light and do not use mercury, have overcome the pollution of mercury to environment.Mercury-free cold cathode fluorescent lamp is not influenced by mercury vapor pressure can moment to start, and brightness is not influenced by ambient temperature, and the life-span is long.Can be used for illumination, advertisement, decoration, also can be used for the demonstration of large-screen picture.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
1. glass bulbs among the figure, 2. phosphor powder layer 3. contains the lamp chamber of nitrogen or nitrogen and inert gas gaseous mixture, 4.4a. electrode, 5. stem stem, 6. ballast, 7. shell, 8. lamp holder, 9.9a. seal wire, 10.10a. lead-in wire.
Embodiment
In Fig. 1, the seal wire (9) that electrode (4) (4a) is welded in stem stem (5) respectively (9a) go up and ballast (6), lead-in wire (10) (10a) and lamp holder (8) electrical connection in proper order, be the lamp chamber (3) of containing nitrogen or nitrogen and inert gas gaseous mixture in the glass bulb (1).After the energized, place restrictions on electric current by ballast (6), glow discharge takes place between (4a) in the electrode (4) of the seal wire (9) that is fixed on stem stem (5) on (9a), because the gas in containing the lamp chamber (3) of nitrogen or nitrogen and inert gas gaseous mixture is the mist of nitrogen or nitrogen and inert gas, so when discharge electrode (4) (4a) the negative brightness of negative electrode on surface give off the ultraviolet ray of the strong 310nm-400nm of nitrogen-atoms, ultraviolet ray excited coated makes it send visible light at the phosphor powder layer (2) that glass bulb (1) inner surface and excitation wavelength meet 310nm-400nm, and cold-cathode fluorescence lamp is lighted.
Claims (8)
1. mercury-free cold cathode fluorescent lamp in glass bulb, seal wire, ballast, lead-in wire and the lamp holder of electrode, stem stem be electrically connected in proper order, is characterized in that: be the lamp chamber of containing nitrogen or nitrogen and inert gas gaseous mixture in the glass bulb.
2. mercury-free cold cathode fluorescent lamp according to claim 1 is characterized in that: on the glass bulb inner surface phosphor powder layer is arranged.
3. according to claim 1, the described mercury-free cold cathode fluorescent lamp of claim 2, it is characterized in that: the shape of glass bulb can be a ball-type, also can be the candle type, also can be the pears type, also can be mushroom-shaped, also can be tapered and disciform.
4. according to claim 1, claim 2, the described mercury-free cold cathode fluorescent lamp of claim 3, it is characterized in that: glass bulb can be transparent, also can be painted and scattering.
5. mercury-free cold cathode fluorescent lamp according to claim 1 is characterized in that: the shell of settling ballast can be arranged between glass bulb and lamp holder.
6. mercury-free cold cathode fluorescent lamp according to claim 1 is characterized in that: ballast can be a resistance, also can be an electric capacity, also can be an inductance, also can mix connection in series-parallel and form by them, and also can be the ballast of an electronics.
7. mercury-free cold cathode fluorescent lamp according to claim 1 is characterized in that: the shape of electrode can be plate, also can be dome-type, also can be the screw rod type, also can be reticular pattern with cylinder type.
8. according to according to claim 1, the described mercury-free cold cathode fluorescent lamp of claim 7, it is characterized in that: electrode is the electrode of metal, also can be the metal electrode of coated, lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420021721 CN2697819Y (en) | 2004-04-09 | 2004-04-09 | Mercury free cold cathode fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420021721 CN2697819Y (en) | 2004-04-09 | 2004-04-09 | Mercury free cold cathode fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2697819Y true CN2697819Y (en) | 2005-05-04 |
Family
ID=34770057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420021721 Expired - Fee Related CN2697819Y (en) | 2004-04-09 | 2004-04-09 | Mercury free cold cathode fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2697819Y (en) |
-
2004
- 2004-04-09 CN CN 200420021721 patent/CN2697819Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |