CN105097383A - Fabrication method of biform external electrode fluorescent tube - Google Patents
Fabrication method of biform external electrode fluorescent tube Download PDFInfo
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- CN105097383A CN105097383A CN201510402696.5A CN201510402696A CN105097383A CN 105097383 A CN105097383 A CN 105097383A CN 201510402696 A CN201510402696 A CN 201510402696A CN 105097383 A CN105097383 A CN 105097383A
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Abstract
The invention provides a novel fabrication method of a biform external electrode fluorescent tube. The fabrication method is characterized by comprising the following steps of: (i) providing a first glass tube with two open end parts, wherein the inner wall of the first glass tube is coated or is not coated with a fluorescent substance, and the diameters of the above open end parts are amplified; (ii) connecting two second glass tubes with two open ends into the open end parts at the two sides of the first glass tube so as to make the first glass tube and the two second glass tubes communicated, wherein the diameters of the second glass tubes are larger than the diameter of the first glass tube; (iii) arranging a first multiplex tube with the purpose of connecting an amplification electrode area or a "horn" structure of which one side is opened and the other side is closed in one of the second glass tubes in an insertion way, and arranging a second multiplex tube with the purpose of connecting the amplification electrode area and having a vent hole in the other one of the second glass tubes in an insertion way; and (iv) connecting an exhaust system to the vent hole, leading the interiors of the glass tubes to be vacuum states and injecting a discharging gas, and cutting a part of the vent hole for sealing and processing. As mentioned above, when a long external electrode fluorescent tube is required according to the use, the length of an external electrode is unnecessarily to lengthen in order to achieve higher brightness, the required external electrode area can be obtained by only providing the individual second glass tubes and another second glass tube which have multiple tube shapes and form the external electrode, and therefore, the non-luminous field caused by the external electrode can be reduced in the longer external electrode fluorescent tube.
Description
The application is application number is 200980159108.2, and the applying date is on May 15th, 2009, and denomination of invention is the divisional application of " Dual external electrode fluorescent lamp and manufacture method thereof ".
Technical field
The present invention relates to its manufacture method of a kind of electrode fluorescent lamp.
Background technology
The present invention relates to its manufacture method of a kind of electrode fluorescent lamp, specifically, engage the diameter independent glass tube different from the diameter of above-mentioned fluorescent tube at the two ends of electrodeless fluorescent lamp pipe, the manufacture method of the overall length of electrode fluorescent lamp and the Dual external electrode fluorescent lamp of external electrode length can be shortened.
LCDs (LiquidCrystalDisplay) is light emitting-type panel display apparatus, itself luminously can not form image, be accept extraneous light irradiate formed image by light type panel display apparatus, so its image cannot be seen at dark place.
The technological means solved the problem has, and arranges backlight (BackLight) irradiation light at the back side of LCDs, ensures also can see image clearly at dark place.Usually, have the requirement specification of backlight, uniformity, the longer useful life of high briliancy, high efficiency, briliancy, volume is thin, lightweight, price is low.
In conventional art, usually adopt cathode fluorescent tube (CCFL; ColdCathodeFluorescentLamp) as backlight, but work under high briliancy, useful life is short is its defect.Therefore, start electrode fluorescent lamp to use as backlight recently.
Electrode fluorescent lamp encloses in the glass tube of sealing by gas, electrode is formed in the outside of lamp tube ends, gas discharge action can be completed when electrode is not exposed to gas discharge space, in fluorescent tube, be formed the fluorescent tube of plasma by the electric field of external electrode.The gas discharge phenomenon occurred in fluorescent tube inside and common fluorescent tube are as good as, but because glass tube itself plays the effect of dielectric, before electric discharge occurs in the external voltage applied for the purpose of induced discharge, so the space charge accumulation produced in discharge process, increase Wall charge and cause voltage gain.
Electrode fluorescent lamp is different from the common fluorescent tube such as cathode fluorescent tube, electrode is positioned at the outside of fluorescent tube, electric field electron emission mode is adopted not produce heat, fluorescent tube to reach five times of common fluorescent fluorescent tube useful life, brightness reaches ten times of common fluorescent fluorescent tube, and energy efficiency reaches the illuminating lamp tube of future generation of cathode fluorescent tube five times.In addition, electrode fluorescent lamp has can drive the multiple advantages such as a plurality of bodys with different drive units, is widely used in the briliancy such as LCDTV, billboard and requires higher use-case.
In addition, the caliber of fluorescent tube affects briliancy and light quantity, and the less briliancy of caliber is larger, but the light-emitting area of fluorescent tube is little, and light quantity is little.On the contrary, the larger briliancy of caliber is less, but light-emitting area increases, and light quantity is large, can be applied to high electric power fluorescent tube.Especially, generally for and obtain high briliancy, electrode fluorescent lamp adopts the tubule that caliber is less, but light quantity is little.But if increase caliber, briliancy reduces again.
Further, when the overall length of fluorescent tube and caliber strengthen, in order to maintain certain briliancy, the length correspondingly extending external electrode is in proportion needed.But extend the length of external electrode, can reduce effective light-emitting area, during as backlight, because its external electrode part is wider, on panel, non-luminous non-luminescent field expands, and this has a negative impact to the efficiency of fluorescent tube.
Therefore, the different purposes according to electrode fluorescent lamp need length longer, the fluorescent tube that correspondingly caliber is also large, but still there is technical problem as above needs to solve.
Summary of the invention
Technical problem
Therefore, the present invention is intended to provide, and when needing the electrode fluorescent lamp of length, not only can obtain required briliancy, can also shorten the manufacture method of the electrode fluorescent lamp in external electrode non-luminescent field.
Technical scheme
In order to solve above-mentioned technical problem, the overall length of electrode fluorescent lamp is elongated according to purposes, and the conventional art correspondingly elongating external electrode length is different, the present inventor completes the glass tube providing separately and form external electrode, and the diameter of this glass tube is greater than the invention of the glass tube pipe diameter scribbling fluorescent material.
To achieve the above object, the manufacture method of Dual external electrode fluorescent lamp is provided according to an embodiment of the invention.The manufacture method of this fluorescent tube comprises, and i) both ends are open, and inwall scribbles fluorescent material, the first glass tube that the diameter of open end is exaggerated stage is provided; (ii) two both ends are open, both ends open type second glass tube that diameter is greater than the first diameter glass tube joins the open end of the first glass tube both sides to, makes the stage that the first glass tube and two the second glass tubes interconnect; (iii) stage of the first multiple pipe for the purpose of in conjunction with magnifying electrode area is plugged in a glass tube in the second glass tube, and second plugs in conjunction with while magnifying electrode area in another glass tube in glass tube, possesses the stage of the second multiple pipe of exhaust outlet; (iv) gas extraction system is connected to exhaust outlet, makes glass tube be in vacuum state and inject discharge gas, the part then cutting exhaust outlet carries out sealing the stage of processing.Further, the open end joining two the second glass tubes of the first glass tube both ends open end to is exaggerated or reduces shaping, and its diameter is greater than or less than or equals the stage of the first glass tube two ends diameter.
The manufacture method of another kind of fluorescent tube, comprising: i) both ends are open, and inwall scribbles fluorescent material, the first glass tube of uniform diameter stage is provided; (ii) two both ends are open, both ends open type second glass tube that diameter is greater than the first diameter glass tube joins the open end of the first glass tube both sides to, makes the stage that the first glass tube and two the second glass tubes interconnect; (iii) stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in a glass tube in the second glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet; (iv) gas extraction system is connected to exhaust outlet, injects discharge gas after making glass tube be in vacuum state, the part then cutting exhaust outlet carries out sealing the stage of processing.Also comprise, the open end joining two the second glass tubes of the first glass tube both ends open end to is exaggerated or reduces shaping, makes its diameter be more than or equal to or be less than the stage of the first glass tube two ends diameter.
Second glass tube is identical at the diameter at sometimes both ends, and sometimes the diameter at both ends is different.
The manufacture method of another dimorphism fluorescent tube, comprising: i) both ends are open, and inwall does not scribble fluorescent material, and what the diameter of open end did not amplify 1 glass tube of processing provides the stage; (ii) two both ends are open, both ends open type second glass tube that diameter is greater than the first diameter glass tube joins the both sides open end of the first glass tube to, makes the stage that the first glass tube and two the second glass tubes interconnect; (iii) the first glass tube and two second glass tube engage state under, smear the stage of fluorophor; (IV) removes engaged two places of the second glass tube or the stage of certain fluorescent material; The stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in the glass tube of (v) second in glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet; Gas extraction system is connected to exhaust outlet by (VI), injects discharge gas after making glass tube be in vacuum state, and the part then cutting exhaust outlet carries out sealing the stage of processing.
By the specific embodiment of the present invention illustrated below in conjunction with accompanying drawing, above-mentioned the object of the invention, feature and benefit can be more clearly understood.
Beneficial effect
As mentioned above, when some purposes needing the electrode fluorescent lamp of length, also there is no need the length extending external electrode in order to obtain required briliancy.Manufacture method of the present invention provides the second glass tube and another second glass tube of the independent multiple tubular state forming external electrode, can guarantee required external electrode area.Therefore, the non-luminescent field that external electrode causes can be reduced in longer electrode fluorescent lamp.
Accompanying drawing explanation
Fig. 1 is the skeleton diagram of the Dual external electrode fluorescent lamp structure according to an embodiment of the invention;
The connected structure skeleton diagram that Fig. 2 is another second glass tube of providing according to an embodiment of the invention and the first glass tube;
Reference numeral
100: the first glass tube 200: the second glass tubes
200 ': the multiple pipe of another the second glass tube 300: the first
400: the second multiple pipes.
Embodiment
When the specific embodiment of the present invention being described below in conjunction with accompanying drawing, the manufacture of electrode fluorescent lamp is correlated with, and the content that in the industry, well-known manufacturing process, the operation that usually may perform, well-known device formation or action etc. are correlated with just repeats no more.Further, illustrate and illustrate the formation of the present invention being applicable to electrode fluorescent lamp, but the practitioner in the industry should be understood that formation of the present invention is equally applicable to adopt the neon light of the glass lamp making not scribbling fluorescent material.
Fig. 1 is the skeleton diagram of the Dual external electrode fluorescent lamp structure according to the present invention's embodiment.Specifically, Fig. 1 a is that the first glass tube 100 and the second glass tube 200 engage, engage the state before the first multiple pipe 300 for the purpose of magnifying electrode area, Fig. 1 b is that the first glass tube 100 and the second glass tube 200 engage, the state that for the purpose of magnifying electrode area first multiple pipe 300 has also engaged.Further, the state of the two ends diameter amplification of the first glass tube.
It should be noted that in Fig. 1 the part that illustrate only on the left of Dual external electrode fluorescent lamp of the present invention.
Further, completing fluorescent tube needs seal operation, and the form of sealing can have a variety of.The present invention no longer illustrates.
As shown in the figure, be made up of the second glass tube 200 of the first glass tube 100 be bonded with each other and the multiple pipe of supplemantary electrode according to the Dual external electrode fluorescent lamp of one embodiment of the present invention, the multiple inside pipe wall added on the surface of the second glass tube 200 and inside is formed with external electrode (not shown), and glass tube is filled with discharge gas.
The end 110 of the first glass tube is open, and except above-mentioned end, the inwall of glass tube scribbles fluorescent material.Further, as shown in the figure, open end 110 is exaggerated, and its diameter D2 is greater than the diameter D1 of glass tube itself.Further, although not shown, the diameter of the first glass tube is all consistent in whole length range, also belongs within scope of the present invention.
Second glass tube 200 is structures that both ends 210,220 open, and is engaged with the open end 110 of the first glass tube by the open end 210 of its side.In addition, as shown in the figure, the diameter D4 of the second glass tube is greater than the diameter D1 of the first glass tube.But, according to the specific embodiment of the present invention, in order to the open end 210 of open end 110, the second glass tube side more easily joining the first glass tube to can reduce shaping.
The diameter D3 reducing shaping open end 210 can be more than or equal to or be less than the diameter D2 of the open end 110 of the first glass tube 100.
There is the Dual external electrode fluorescent lamp of said structure, except the first glass tube 100 is provided, also provide separately the second glass tube 200 forming external electrode, and the diameter D4 of the second glass tube is greater than the diameter D1 of the first glass tube.Therefore, when needing the electrode fluorescent lamp of length according to purposes, without the need to correspondingly elongating external electrode, also can guarantee to obtain the area needed for corresponding briliancy, effectively reducing the non-luminescent field that external electrode causes.Further, engage the first multiple pipe 300 for the purpose of magnifying electrode area, above-mentioned effect can be improved further.
Be configured to the manufacture method of the Dual external electrode fluorescent lamp of feature by the stage below, specifically comprise as the next stage:
I) both ends are open, and inwall does not scribble fluorescent material, 1 glass tube that the diameter of open end does not amplify stage is provided;
(ii) two both ends are open, the second glass tube that diameter is greater than the both ends open type of the first diameter glass tube joins the both sides open end of the first glass tube to, makes the stage that the first glass tube and two the second glass tubes interconnect;
(iii) the first glass tube and two second glass tube engage state under, smear the stage of fluorophor;
(IV) removes engaged two places of the second glass tube or the stage of the fluorescent material of certain;
The stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in the glass tube of (v) second in glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet;
Gas extraction system is connected to exhaust outlet by (VI), injects discharge gas after making glass tube be in vacuum state, and the part then cutting exhaust outlet carries out sealing the stage of processing.
Below, the manufacture method with the Dual external electrode fluorescent lamp of above-mentioned formation will be described in detail.
1. the joint of the first glass tube 100 and the second glass tube 200
First, as shown in Figure 1a, the first glass tube 100 prepared to manufacture electrode fluorescent lamp is that inside glass tube, scribble fluorescent material according to common fluorescent tube manufacturing process, both ends 110 are in open state.
The diameter at above-mentioned both ends preferably zooms into the diameter being greater than the glass tube body scribbling fluorescent material.Below, will describe in detail.
In addition, as shown in the figure, according to an embodiment of the invention, the inwall of the first glass tube 100 is not all be coated with fluorescent material, but the both ends 110 that will engage with the open end 210 of the second glass tube 200 do not scribble fluorescent material.That is, when bonding glass pipe, fluorescent material may have influence on bonding operation, so the junction of glass tube had better not be coated with fluorescent material.
Secondly, second glass tube 200 that will engage with the first glass tube 100 is prepared.As shown in the figure, the diameter D4 of the second glass tube 200 is greater than the diameter D1 of the first glass tube 100.That is, need the electrode fluorescent lamp of length in some cases, but when the length of fluorescent tube and/or caliber become large, in order to keep briliancy constant, need the length of elongating external electrode in proportion.When the length of external electrode is elongated, effective light-emitting area reduces, and the non-luminescent field of whole fluorescent tube increases, and reduces its efficiency.
The present invention manufactures electrode fluorescent lamp with the form of single glass tube, but prepare respectively form the glass tube of external electrode and scribble the glass tube of fluorescent material, and then while carrying out engaging, make the diameter of the glass tube of formation external electrode be greater than the diameter of the glass tube scribbling fluorescent material, solve Problems existing on conventional art.
Specifically, the caliber D4 forming the second glass tube 200 of external electrode is greater than the caliber D1 of the first glass tube 100, guarantees the area of the external electrode part needed for purposes.That is, the single electrode fluorescent lamp in conventional art, along with extended length, the glass tube of the external electrode forming part of identical caliber also will elongate, and guarantees required briliancy etc.But the present invention is except the glass tube 100 scribbling fluorescent material, and the second glass tube 200 that also other preparation diameter is greater than above-mentioned glass tube forms external electrode, guarantees to obtain the area needed for corresponding briliancy.
As shown in the figure, the both ends of the second glass tube 200 are open.According to an embodiment of the invention, in order to join the open end 110 of the first glass tube to, the caliber of above-mentioned open end 210 is reduced.
In subsequent handling, when engaging the first glass tube 100 and the second glass tube 200, after the open end 110,210 of alignment two glass tubes, blowtorch etc. is used to engage two ends.
When engaging two glass tubes according to the present invention, under the state utilizing certain support (not shown) to fix two glass tubes, rotate glass tube, use its junction surface of blowtorch melting to engage.During such joint two glass tubes, the junction surface of glass tube can be effectively prevented to be distorted or glass tube subsides.
In above-mentioned engaging process, coated glass pipe, that is, the diameter of the first glass tube 100 open end 110 preferably zooms into the diameter being greater than the first glass tube.As shown in Figure 1, the diameter D2 of open end 110 is exaggerated into the diameter D1 being greater than the first glass tube.When bonding glass pipe 100,200, because high-temperature glass tube is easily crispaturaed.If when the diameter D2 due to high temperature open end 110 is less than the caliber D1 of the first glass tube 100, fluorescent tube luminance difference will occur, and electrical impedance also increases, affect the mode of appearance of final fluorescent tube.Consider above-mentioned factor, the diameter D2 of the first glass tube 100 open end 110 is more preferably greater than the diameter D1 of the first glass tube.
In addition, according to an embodiment of the invention, in order to engage two glass tubes more easily, the open end 110,210 of two glass tubes is processed into different diameters.Now, the diameter D1 of the first glass tube open end 110 may be greater than or less than the diameter D3 of the second glass tube open end 210.Further, according to another implementation of the invention, also open end can be processed into identical diameter D2, D3.But, do not forget and any shaping can not done to the open end 210 of the second glass tube yet, only the open end 110 of the first glass tube 100 is processed, engage with the second glass tube 200.According to concrete execution mode, if the diameter D4 of the second glass tube 200 is not the diameter D1 being obviously greater than the first glass tube, then only can process the open end 110 of the first glass tube, be inserted into the second glass tube or engage after aliging with it.In other words, the whole length interior diameter of the second glass tube can be consistent.
After preparing the first and second glass tubes by above-mentioned process, perform the bonding process of two glass tubes.As shown in Figure 1, when the diameter of two glass tube open end is different, the open end of minor diameter is inserted in large diameter open end, then engages two open end by blowtorch.When the diameter of two open end is identical, after aiming at two ends, engage two ends by blowtorch.
Further, in order to further magnifying electrode area, the second glass tube adopts two-tube form.That is, adopt diameter to be less than another glass tube 310 of the second diameter glass tube, slot milling between its external diameter and the internal diameter of the second glass tube, engage the first multiple pipe 300.
2. the joint of the first glass tube 100 and another the second glass tube 200 '
Complete after the side open end 110 of the first glass tube 100 engages the operation of the second glass tube 200 by above-mentioned series of processes, also perform the bonding process of another the second glass tube 200 ' at the other end of the first glass tube 100.These bonding processs are different from aforesaid bonding process, need extra operation.That is, when manufacturing electrode fluorescent lamp, fluorescent tube inside is first made to be in the operation of vacuum state and the operation of inert gas injecting (discharge gas).
In order to more easily complete the bonding process of the independent glass tube that above-mentioned requisite operation and the present invention are mentioned to, the invention provides the second multiple pipe 400 of brand new.Above-mentioned second multiple pipe also additionally possesses, and forms vacuum state and the exhaust outlet needed for injecting gas 420.In the following description, the part of repetition relevant to the structure of the first and second glass tubes will repeat no more.
(1) structure of another the second glass tube 200 '
As shown in Figure 2, in order to join another open end of the first glass tube 100 to independent glass tube, provide another second glass tube 200 ' that pipe 400 multiple with possess exhaust outlet second engages.Above-mentioned second multiple pipe 400 possesses and forms two-tube form with another glass tube 410 of another glass tube 310 homomorphosis of Fig. 1, and two ends are all through, one end is connected to gas extraction system (not shown), and the other end is then connected to the exhaust outlet 420 engaged with another glass tube 410.
The joint of (2) first glass tubes 100 and another the second glass tube 200 '
The same with the bonding process of the second glass tube 200, by open end, another second glass tube 200 ' is joined to another open end of the first glass tube 100.
After performing the work of glass tube with vacuum inside by the exhaust outlet 420 being connected to gas extraction system (not shown), perform the injection work of inert gas.After completing series of processes, exhaust outlet is sealed, completes the bonding process of another second glass tube 200 ' and the first glass tube 100.
Complete after the operation the first glass tube 100 engaging the second glass tube 200 and another the second glass tube 200 ' through above-mentioned series of processes, form external electrode with the surface of morphotic second glass tube 200 of multiple pipe and another the second glass tube, then complete electrode fluorescent lamp.Now, should note also in advance after the second glass tube and the second glass area under control 320 form external electrode, aforesaid a series of engaging process can being completed.
The manufacture method of above-mentioned all Dual external electrode fluorescent lamps comprises, follow-up electrode coating stage.Further, as previously mentioned, the second glass tube and other glass tubes of built-in first multiple pipe and the second multiple pipe are formed with electrode all, and the manufacture method omitting the Dual external electrode fluorescent lamp of follow-up electrode coating stage also belongs within scope of the present invention.
Further, also belong within scope of the present invention according to the Dual external electrode fluorescent lamp of the manufacture method manufacture of above-mentioned Dual external electrode fluorescent lamp.
Further, although not shown, but the manufacture method comprising with next stage the Dual external electrode fluorescent lamp being feature also belongs to the scope of the invention.I) provide both ends open, inwall does not scribble fluorescent material, the stage of the glass tube that the diameter of open end does not amplify; (ii) two both ends are open, diameter is greater than the first diameter glass tube, and both ends open type second glass tube joins the both sides open end of the first glass tube to, makes the stage that the first glass tube and two the second glass tubes interconnect; (iii) the first glass tube and two second glass tube engage state under, smear the stage of fluorophor; (IV) removes engaged two places of the second glass tube or the stage of the fluorescent material of certain; The stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in the glass tube of (v) second in glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet; Gas extraction system is connected to exhaust outlet by (VI), injects discharge gas after making glass tube be in vacuum state, and the part then cutting exhaust outlet carries out sealing the stage of processing.
More than illustrate embodiments of the present invention in conjunction with the present invention.But the practitioner of the technical field of the invention is to be understood that other the embodiment that can also exist without the need to changing its technological thought or indispensable feature.Therefore, execution mode of the present invention is all exemplary in all respects, and is not confined to this.Scope of the present invention delimited by claims, and the form of all changes of deriving in the meaning of claims and scope and equivalent concepts thereof or distortion all should be understood to belong to category of the present invention.
Claims (9)
1. a manufacture method for Dual external electrode fluorescent lamp, is characterized in that, comprising:
I () provides both ends open, inwall scribbles fluorescent material, the stage of the first glass tube of the diameter amplification of open end;
(ii) two both ends are open, diameter is greater than the first diameter glass tube, and both ends open type second glass tube joins the both sides open end of the first glass tube to, makes the stage that the first glass tube and two the second glass tubes interconnect;
(iii) stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in a glass tube in the second glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet;
(iv) join gas extraction system to exhaust outlet, inject discharge gas after making glass tube be in vacuum state, the part then cutting exhaust outlet carries out sealing the stage of processing.
2. the manufacture method of Dual external electrode fluorescent lamp according to claim 1, it is characterized in that, join the open end of two the second glass tubes of the both ends open end of the first glass tube to, its diameter is more than or equal to or is less than the two ends diameter of the first glass tube.
3. a manufacture method for Dual external electrode fluorescent lamp, is characterized in that, comprising:
I () provides both ends open, inwall scribbles fluorescent material, the stage of the first glass tube that diameter is consistent;
(ii) two both ends are open, diameter is greater than the diameter of the first glass tube, and the second glass tube of both ends open type joins the both sides open end of the first glass tube to, makes the stage that the first glass tube and two the second glass tubes interconnect;
(iii) stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in a glass tube in the second glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet;
(IV) joins gas extraction system to exhaust outlet, injects discharge gas after making glass tube be in vacuum state, and the part then cutting exhaust outlet carries out sealing the stage of processing.
4. the manufacture method of Dual external electrode fluorescent lamp according to claim 3, it is characterized in that, join the open end of two the second glass tubes of the both ends open end of the first glass tube to, its diameter is more than or equal to or is less than the two ends diameter of the first glass tube.
5. the manufacture method of the Dual external electrode fluorescent lamp according to claim 1 or 3, is characterized in that, comprises follow-up electrode coating stage.
6. the manufacture method of the Dual external electrode fluorescent lamp according to claim 1 or 3, is characterized in that, the second glass tube and other glass tubes of built-in first multiple pipe and the second multiple pipe are formed with electrode all, can omit follow-up electrode coating stage.
7. a manufacture method for Dual external electrode fluorescent lamp, is characterized in that, comprising:
I () provides both ends open, inwall scribbles fluorescent material, the stage of the glass tube that the diameter of open end does not amplify;
(ii) two both ends are open, diameter is greater than the first diameter glass tube, and the second glass tube of both ends open type joins the both sides open end of the first glass tube to, makes the stage that the first glass tube and two the second glass tubes interconnect;
(iii) the first glass tube and two second glass tube engage state under, coating fluorophor stage;
(IV) removes engaged two places of the second glass tube or the stage of certain fluorescent material;
The stage of the first multiple pipe engaged for the purpose of magnifying electrode area is plugged in the glass tube of (v) second in glass tube, and second plug in another glass tube in glass tube and engage magnifying electrode area while, possess the stage of the second multiple pipe of exhaust outlet;
Gas extraction system is connected to exhaust outlet by (VI), injects discharge gas after making the inside of glass tube be in vacuum state, and the part then cutting exhaust outlet carries out sealing the stage of processing.
8. the manufacture method of the Dual external electrode fluorescent lamp according to claim 2 or 4, is characterized in that, comprises follow-up electrode coating stage.
9. the manufacture method of the Dual external electrode fluorescent lamp according to claim 2 or 4, is characterized in that, the second glass tube and other glass tubes of built-in first multiple pipe and the second multiple pipe are formed with electrode all, can omit follow-up electrode coating stage.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009801591082A CN102422378A (en) | 2009-05-15 | 2009-05-15 | Dual external electrode fluorescent lamp and manufacturing method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009801591082A Division CN102422378A (en) | 2009-05-15 | 2009-05-15 | Dual external electrode fluorescent lamp and manufacturing method thereof |
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| CN105097383A true CN105097383A (en) | 2015-11-25 |
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- 2009-05-15 CN CN201510402696.5A patent/CN105097383A/en active Pending
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| US20020041268A1 (en) * | 2000-09-04 | 2002-04-11 | Toshihiro Yajima | Liquid crystal display |
| CN1716514A (en) * | 2004-06-30 | 2006-01-04 | Lg.菲利浦Lcd株式会社 | External electrode fluorescent lamp and manufacturing method thereof |
| US20060138958A1 (en) * | 2004-12-24 | 2006-06-29 | Junghyun Yoon | Fluorescent lamp, method of manufacturing the same, and backlight unit having the same |
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Application publication date: 20151125 |