CN1551286B - Method for forming cold point area and discharge lamp with said cold point area - Google Patents
Method for forming cold point area and discharge lamp with said cold point area Download PDFInfo
- Publication number
- CN1551286B CN1551286B CN200410034371.8A CN200410034371A CN1551286B CN 1551286 B CN1551286 B CN 1551286B CN 200410034371 A CN200410034371 A CN 200410034371A CN 1551286 B CN1551286 B CN 1551286B
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- Prior art keywords
- discharge tube
- lamp
- barrier film
- blast pipe
- tubulose prolongation
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 title abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000004888 barrier function Effects 0.000 claims description 45
- 238000007789 sealing Methods 0.000 claims description 11
- 239000012528 membrane Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000004927 fusion Effects 0.000 description 8
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 8
- 229910052753 mercury Inorganic materials 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/32—Special longitudinal shape, e.g. for advertising purposes
- H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/33—Special shape of cross-section, e.g. for producing cool spot
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
- H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
- H01J9/245—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps
- H01J9/247—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for gas discharge tubes or lamps specially adapted for gas-discharge lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/40—Closing vessels
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
A method for forming a cold spot region on a discharge tube (2) of a discharge lamp is disclosed In the method, a discharge tube (2) is formed, and a tubular extension (18) is formed on at least one end of the discharge tube (2). The tubular extension (18) has a smaller diameter than the diameter of the discharge tube end. The tubular extension (18) is formed so that a free end of the tubular extension (18) extends away from the end of the discharge tube (2). A reduced thickness portion (36) is formed on the tubular extension (18). The reduced thickness portion (36) is formed as a membrane (38). A discharge lamp is also disclosed, which comprises a discharge tube (2) with a tubular extension (18) located at an end of the discharge tube (2). The tubular extension (18) has a smaller diameter than the diameter of the discharge tube end, and the tubular extension (18) comprises a reduced thickness portion (36). The reduced thickness portion (36) is a membrane (38), preferably formed of the material of the tubular extension (18).
Description
Technical field
The present invention relates to a kind of method that on the discharge tube of discharge lamp, forms a cold spot area.The invention still further relates to a kind of discharge lamp with a cold spot area, wherein said cold spot area is to be made up of a tubulose prolongation that is positioned at an end place of said discharge tube.
Background technology
Low-pressure discharge lamp as known in the art is varied.The great majority of these lamps are so-called compact fluorescent lamps.These lamps comprise a discharge tube.The inner surface of said discharge tube is covered by a kind of cold light material that is commonly referred to fluorescent material, and this cold light material generally is also referred to as the light powder.Receiving when ultraviolet ray exited said fluorescent material visible emitting.Ultraviolet ray is to be interacted and produced by the discharge that is taken place between the mercury gas and two electrodes that fill in said discharge tube.For this reason, some low-pressure discharge lamp contains small amounts of mercury.In order to obtain the light output of maximum, requirement is regulated mercuryvapour and is made on its partial pressure that is stabilized in a fine definition.Can realize this requirement through following method: on said discharge tube, form a so-called cold spot or cold house, and in this cold spot, select a suitable temperature, this cold spot is the coldest position of said gas discharge tube at said lamp duration of work.Superfluous mercury condensation has been regulated the partial pressure of mercury automatically in this cold spot.Like this, the temperature effect of said cold spot the partial pressure of mercury in this discharge tube, and this partial pressure directly exerts an influence to the light output of lamp then.
In general, under 40-45C ° cold-point temperature, have the compact fluorescent lamp that fills the mercury discharge pipe and be able to be adjusted into maximum optical output is provided.Usually the cold spot area with said lamp is designed to be positioned on the part of said discharge tube, and this position is far away relatively from the drive electronics of said lamp, and these electronic installations are easy to produce extra heat.For example, form a cold spot area at the top of said discharge tube usually.But; Compare in last locate mode with lamp socket; This can cause lamp socket under locate mode (that is, when lamp socket is lower than said discharge tube) under, compact fluorescent lamp may lose up to the output of 20% light; This is the said cold spot area because of the heat meeting heating lamp that from said electronic installation and said discharge tube, rises, thereby the temperature of said cold spot can be increased to undesirable degree.
United States Patent (USP) the 4th, 549 discloses a kind of discharge lamp No. 251, and this discharge lamp has a discharge tube that bends to a kind of special shape.End at this discharge tube is provided with a long tubulose prolongation.The effect of this prolongation is as the cooling zone that is used for the mercury condensation.Said tubulose prolongation is the residual fraction of blast pipe, and the latter is used for the said discharge tube of emptying during manufacture.Use the top of this blast pipe of solid glass top seal sealing.The length of blast pipe is selected so that the optimum temperature of said cold spot to be provided, and this is at United States Patent (USP) the 4th, 549, is illustrated in No. 251.
United States Patent (USP) the 4th, 329 discloses a kind of automatic top seal equipment No. 166, this equipment be for the top seal of carrying out the low-pressure discharge lamp blast pipe custom-designed.A kind of like this equipment can realize having the sealing of blast pipe of the wall thickness of about 1mm.This known device is specially to design for the thickness that this blast pipe head portion is provided, and it is useful not instructing or pointing out the non-thickness of this blast pipe.
We have found that, those known methods that provide cold spot area can't meet be designed to lamp socket under the requirement of compact fluorescent lamp of mode work, this moment, the end of this discharge lamp was hidden in the lamp housing.Even improved the draught capacity of lamp housing, the thickness of this blast pipe also can cause can't realize that heat is fully lost from said cold spot.At first, the length of said blast pipe is had the practical application restriction because long blast pipe make or other processing procedure in broken easily.Secondly, even have relatively long blast pipe, from the heat load of discharge volume also greater than the heat leakage of realizing through the blast pipe glass wall.
Therefore, exist having more the effectively demand of the discharge lamp of the cold spot area of cooling, this more effectively cold spot area of cooling makes said lamp to carry out work with state basically arbitrarily, and does not have any significant light output loss.Also exist demand to the method for making this discharge lamp.We attempt to provide a kind of method; And the cold spot area that provides required effective cooling; This method relatively simply and not needs expensive element and complicated manufacturing equipment, and can this method be attached in various types of existing production lines with flat-footed mode.
Summary of the invention
In an example embodiment of the present invention, a kind of method that on the discharge tube of discharge lamp, forms cold spot area is provided.According to this method, form a discharge tube, and at least one end of said discharge tube, form a tubulose prolongation.This tubulose prolongation has the diameter less than said discharge tube end.In formed said tubulose prolongation, the free end of said tubulose prolongation extends away from said discharge tube end.On said tubulose prolongation, form the part that thickness has reduced.The part that said thickness has been reduced forms a barrier film.
In the example embodiment of another aspect of the present invention, a kind of discharge lamp is provided, comprising: a discharge tube has a tubulose prolongation that is positioned at said discharge tube end.Said tubulose prolongation is so to form: the free end of said tubulose prolongation extends away from said discharge tube end.Said tubulose prolongation has the diameter less than said discharge tube end, and said tubulose prolongation also comprises the part that thickness has reduced.The part that said thickness has reduced is a barrier film.
In the example embodiment of another aspect of the present invention, a kind of discharge tube with a tubulose prolongation is provided, this tubulose prolongation is positioned at an end of said discharge tube.Said tubulose prolongation comprises the part that a thickness has reduced, and the part that wherein said thickness has reduced is a barrier film, and said barrier film is that the material by said tubulose prolongation forms.
Disclosed method and lamp guarantee on an end of said tubulose prolongation, to obtain a cold spot area with enough low temperature.The barrier film that forms according to this method has a wall as thin as a wafer, and this has guaranteed to be located immediately near the zone of barrier film has good heat radiation, and effectively cools off the little space at the place, end of said tubulose prolongation.This little space is enough to as cold spot area.Because its little size and position thereof, the said thin membrane at place, said tubulose prolongation end can not damaged the overall mechanical strength of said discharge tube.Use the production equipment on the existing production line can realize this method easily.
Description of drawings
To introduce the present invention with reference to accompanying drawing now, wherein,
Fig. 1 be low-pressure discharge lamp with spiral type discharge tube be in lamp socket under state the time end view,
Fig. 2 is the amplification sectional view of the end sections of lamp described in Fig. 1, has the remainder and the cold spot area of blast pipe,
Fig. 3 representes to form on said discharge tube according to an embodiment of method of the present invention first step of cold spot area,
Fig. 4 to 6 schematically shows the subsequent step of the embodiment of said method, shows the blast pipe on the discharge tube end of Fig. 3 during the different phase that said barrier film forms with the ratio of amplifying,
Fig. 7 is the sectional view of the lamp housing of discharge lamp shown in Figure 1 along the plane VII-VII intercepting of Fig. 1.
Embodiment
Referring now to Fig. 1 and Fig. 2.A kind of low-pressure discharge lamp 1 has been shown among the figure, and this discharge lamp 1 has a helical discharge tube 2 that two helix tube parts 21,22 are arranged.Such discharge lamp 1 generally is also referred to as compact fluorescent lamp, and is known in the art, and it can have various tube shape.This discharge tube 2 has constituted an arc chamber that is used for the sealing of discharge process.Lamp housing 4 covers the end 31 of discharge tube 2, and the electric contact 8,9 of this lamp is installed.
As knowing finding in the accompanying drawing 2, said discharge tube 2 is provided with a tubulose prolongation 18, and it is positioned at 31 places, end of said discharge tube 2.This tubulose prolongation 18 has the diameter that many littler than the diameter of this discharge tube 2.The free end 41 of this tubulose prolongation 18 extends away from said discharge tube.This tubulose prolongation 18 is blast pipes 28, and more precisely, it is a part that in manufacture process, remains in the blast pipe 28 on this discharge tube 2.Blast pipe 28 shown in the accompanying drawing 2 has bending slightly, and its reason will make an explanation with reference to accompanying drawing 7 in the back, and but, in other embodiments, it also can be straight or crooked more.
As knowing finding in the accompanying drawing 2, said blast pipe 28 is sealed by a barrier film 38 at its free end 41 places.This barrier film 38 typically is a glass by forming with said blast pipe 28 identical materials.Be appreciated that the part 36 that a thickness that this barrier film 38 or film have constituted said tubulose prolongation has reduced in the explanation from behind, this part 36 is positioned at the end 41 of this tubulose prolongation 18.Term " barrier film " expression; The wall thickness of the part 36 that this thickness of said tubulose prolongation 18 has reduced is very little; So that on the direction surperficial perpendicular to it; Its mechanical support ability can be ignored, and it can only comprise and be parallel to its surperficial power, and is just the same as the barrier film of being processed by flexible material.But, this barrier film 38 still can withstand external atmosphere pressure, and in part because of its crooked shape, this shape is that the back is with reference to the result of accompanying drawing 3 to the manufacturing approach of accompanying drawing 6 explanations.
Being close near the space 24 the inner surface 26 that said barrier film 38 is actually this barrier film 38, is the cold spot area of said discharge lamp 1.This barrier film 38 is extremely thin, and its thickness can be about 0.1mm and even littler magnitude.Therefore, compare with other interior section of said discharge tube 2 and said blast pipe 28, even at said lamp 1 duration of work, this barrier film 38 itself and towards the space 24 surface 26 also will have quite the temperature near ambient temperature.As a result, the inner surface 26 of this barrier film 38 is suitable for as cold spot ideally.Compare with the blast pipe closed end with normal thickness, the structure of this barrier film in the blast pipe 28 can reduce 6-9C ° with this cold-point temperature.This also gives the credit to and locatees this barrier film 38 as much as possible away from filament 14.For example, in the present embodiment, said tubulose prolongation 18; That is, the length of said blast pipe 28 can be 30mm, but this length is generally 8-20mm; This length depends on the size of said discharge tube 2 and other parameter of said lamp, occasion that for example normal light output, expectation are used or the like.In general, the diameter of said discharge tube is between the 8-20mm, and the length of said blast pipe 28 is the pipe diameter and even the bigger order of magnitude.The diameter of tubulose prolongation 18 can be between 2-5mm.Because this tubulose prolongation 18 has the little diameter De of diameter Dt than 31 places, said discharge tube 2 ends, therefore the diameter of said barrier film 38 is also still quite little, so it will can not weaken the mechanical strength of this discharge tube basically.In addition, in fact barrier film 38 can be positioned within the said blast pipe 28, as the embodiment shown in the accompanying drawing 2, and therefore can prevent mechanical impact well.
Turn over now and see accompanying drawing 3 to 6.Illustrated among the figure and can be implemented in one such as the step that forms the method for cold spot area on the discharge tube 2 of the such discharge lamp of the discharge lamp in the accompanying drawing 11.
This method is from form 2 beginnings of a discharge tube in known manner.When forming this discharge tube 2 or subsequently, at least one end 31 of this discharge tube 2, form a tubulose prolongation 18.At least in the zone of this discharge tube end 31, this tubulose prolongation 18 is formed the diameter De that has less than the diameter Dt of this discharge tube 2.Advantageously, that kind as described above is utilized the tubulose prolongation 18 of a blast pipe 28 as this discharge tube 2.This tubulose prolongation 18 is formed: the free end 41 of this tubulose prolongation 18 extends away from the end 31 of this discharge tube 2.A kind of like this structure with discharge tube 2 of a blast pipe 28 is known in the art, and it also comprises connecting line 10,12 and filament 14, does not just carry out illustrated in detail here and has explained.
In one embodiment of the invention, the part 36 that thickness has reduced is arranged on the said tubulose prolongation 18, that is, and and on the blast pipe 28 in this programme.The part 36 that this thickness has been reduced forms a barrier film 38 (also seeing accompanying drawing 2).Advantageously, use the material of said tubulose prolongation 18 that this barrier film 38 is formed on the free end 41 of this tubulose prolongation 18.
A kind of like this barrier film 38 can form through the manufacture process with reference to accompanying drawing 4 to 6 graphic extensions, and these accompanying drawings show the free end 41 of said blast pipe 28.At first, between the inner space 34 of said discharge tube 2 and ambient pressure, set up a pressure reduction.In practice, this is by perhaps realizing through the other said discharge tube 2 of discharge tube opening emptying through said blast pipe 28.This emptying is to represent through the adpting flange 50 of a standard vacuum equipment (not shown).Must be noted that: emptying discharge tube 2 (be emptying or rather, and charge into low-pressure gas) is the part of standard lamp manufacture process.Last in this step, the internal pressure of said discharge tube is about 4 millibars.
After emptying or even with this evacuation section side by side, in the position that needs are made barrier film 38, the free end 41 of said tubulose prolongation 18 is heated.This heating process is realized by known method, preferably uses the flame 42 of blowtorch 40 to heat.Under the sufficient condition of energy, the material that heating can the said tubulose prolongation 19 of fusion.In general, said discharge tube 2 is processed by glass, so use normal glass processing factory equipment just can realize heating and fusion, for example is similar to United States Patent (USP) the 4th, 329, disclosed equipment in No. 166.
Along with the material of said tubulose prolongation 28 in the position fusion that is receiving flame 42 heating, under the effect of the inner space 34 of said discharge tube 2 and the pressure reduction between external pressure, by the material production of this fusion an air bubble-shaped configuration 37.Attach Figure 4 and 5 and represent, along with the fusion of the material of said blast pipe 28, its wall 33 is at first inwardly heaved, and heaves the wall 35 (seeing accompanying drawing 5) that part reaches opposite side up to this.Flame 42 is thereafter also with the wall 35 of the said opposite side of fusion, separated two parts 28 of being connected to the said blast pipe on said blast pipe 2 and the said flange 50 ', 28 " (seeing accompanying drawing 6).During this period, the glass material of fusion is with continuing to appear air bubble-shaped configuration 37, and this air bubble-shaped configuration 37 begins in said blast pipe 28, to heave.
Everybody understands; Said air bubble-shaped configuration 37 also needs not be a complete bubble; But only comprise the curved surface that the material by fusion forms; Here the shape of this curved surface almost completely be by the viscosity of the pressure that puts on its both sides, material and hot strength with and the shape decision of fixing periphery, be similar to the shape of blowing soap bubbles.Like this, the wall of this air bubble-shaped configuration 37 has constituted a barrier film 38 or film.This barrier film 38 is that the melted material by said tubulose prolongation 18 forms.
After having produced this air bubble-shaped configuration 37, with the material cooled of said tubulose prolongation 18 to being lower than melt temperature, thereby said barrier film 38 is solidified.If said discharge tube 2 has no other opening, then when forming said barrier film 38, realized this sealing of emptying discharge tube 2.Like a dream, through forming the shape of air bubble-shaped, said barrier film 38 will present the space 34 that extremely is suitable for resisting in the said discharge tube 2 and the shape of the pressure reduction between the ambient pressure automatically.And this barrier film 38 can be withdrawn to the inside of said blast pipe 28 slightly, thereby protects this barrier film 38 to avoid the influence of external mechanical influence.The barrier film of processing in this way can be approached very much, at the 0.1mm even the littler order of magnitude.
Take off said discharge tube 2 from said emptying equipment, so just realized the sealing of said blast pipe 2 and the formation of said barrier film 38, only need be no more than several seconds time with a kind of single procedure of processing.Through accurately adjusting machined parameters, can regulate the thickness of said barrier film 38 and the degree of depth of withdrawal in said blast pipe 28.The bending of the blast pipe 28 shown in the accompanying drawing 2 and 7, can be before said barrier film 38 forms, during or carry out afterwards.
Be noted that usual processing method is to use two and even a plurality of relative flame to come for blast pipe seals, or when using a single flame to heat, rotate said blast pipe.And in the method that here proposes, a single flame is only used in suggestion, and does not rotate said blast pipe 28.But, other technology also is suitable for making disclosed barrier film 38.
After having processed said blast pipe 2, attach it on the lamp housing 4.Referring now to accompanying drawing 7, the amplification sectional view of lamp housing 4 has been shown among this figure.Like finding among this figure, said lamp housing 4 covers are sealing the end 31 of said discharge tube 2, and therefore also overlap the end 41 of sealing said tubulose prolongation 18, that is, and and the end of said blast pipe 28.Can find out also that in this accompanying drawing said blast pipe 28 is crooked, be the inner space that adapts to said lamp housing to adapt to this lamp housing 4, to say more accurately.Minimum for the heat load on the cold spot area at free end 41 places that make said blast pipe 28, said lamp housing 4 is provided with a dividing plate 60.This dividing plate 60 is divided into first space segment 64 and second space segment 62 with the inner space of this lamp housing 4, and therefore said dividing plate 60 is with these two space segments, 62,64 separate coming.This first space segment 64 is holding said drive circuit 16, and these second space segment, 62 covers are sealing the end 31 of the said discharge tube 2 that is connecting said tubulose prolongation 18.Like this, the heat that is produced by drive circuit 16 has been realized the isolation of the cold spot area on the end 41 with said blast pipe 28 at least in part.
Through on said lamp housing 4, in the zone of said second space segment 62, ventilating opening 66 is set at least, make the cooling of said discharge tube 2 cold spot areas obtain further reinforcement.But, also can such ventilating opening 66 be set for said first space segment 64 that cover is sealing said circuit 16, shown in accompanying drawing 7 embodiment illustrated.
The present invention is not limited to the shown and disclosed content of embodiment, but other element, improvement and change are also contained within the scope of the present invention.For example, those skilled in the art is clear, and said tubulose prolongation must not be the blast pipe of said discharge tube, though this is most preferred scheme, but a tubulose prolongation that can provide barrier film separately can be set on said discharge tube.And, a barrier film can all be set on the two ends of discharge tube.Such cold spot area can not only be formed on the helical lamp, and can be formed on all types of compact fluorescent lamps.Said barrier film can also be formed on the quite short blast pipe top seal.
Claims (7)
1. discharge lamp comprises:
Discharge tube (2);
Be positioned at the tubulose prolongation (18) of said discharge tube one end; The diameter (De) of said tubulose prolongation (18) is less than the diameter (Dt) of said discharge tube end (31); The free end (41) of said tubulose prolongation (18) extends away from said discharge tube end (31)
It is characterized in that:
Said tubulose prolongation (18) also comprises the part (36) that thickness has reduced,
The part (36) that said thickness has reduced is barrier film (38);
Wherein, said lamp (1) comprises lamp housing (4), and said lamp housing (4) cover is sealing the free end (41) of said tubulose prolongation (18);
Said lamp housing (4) cover is sealing the drive circuit of said lamp (1); Said lamp housing (4) also comprises dividing plate (60), first space segment (64) that said dividing plate (60) will hold said drive circuit with holding at least one discharge tube end (31) and separating with second space segment (62) of the tubulose prolongation (18) that links to each other;
Said lamp housing (4) also comprises the ventilating opening (66) in the zone that is arranged in said second space segment (62) at least.
2. according to the described discharge lamp of claim 1, wherein, said barrier film (38) is that the material by said tubulose prolongation (18) forms.
3. according to the described discharge lamp of claim 1, wherein, said tubulose prolongation (18) is blast pipe (28).
4. according to the described discharge lamp of claim 3, wherein, said barrier film (38) has sealed the end (41) of said blast pipe (28).
5. according to each described discharge lamp among the claim 1-3, wherein, the thickness of said barrier film (38) is equal to or less than 0.1mm.
6. according to each described discharge lamp among the claim 1-3, wherein, the length of said tubulose prolongation (18) is between 8～20mm.
7. according to each described discharge lamp among the claim 1-3, wherein, the diameter (Dt) of said discharge tube end is between 8～20mm.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUP0301023 | 2003-04-16 | ||
| HU0301023A HU0301023D0 (en) | 2003-04-16 | 2003-04-16 | Cold spot arrangement in compact discharge lamp |
| US10/751156 | 2004-01-02 | ||
| US10/751,156 | 2004-01-02 | ||
| US10/751,156 US7227303B2 (en) | 2003-04-16 | 2004-01-02 | Method for forming cold spot region and discharge lamp with such cold spot region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1551286A CN1551286A (en) | 2004-12-01 |
| CN1551286B true CN1551286B (en) | 2012-08-08 |
Family
ID=89981314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200410034371.8A Expired - Fee Related CN1551286B (en) | 2003-04-16 | 2004-04-14 | Method for forming cold point area and discharge lamp with said cold point area |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1469506A3 (en) |
| CN (1) | CN1551286B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006302589A (en) * | 2005-04-19 | 2006-11-02 | Osram-Melco Ltd | Compact self-ballasted fluorescent lamp |
| KR101292119B1 (en) * | 2012-03-21 | 2013-08-09 | 강성석 | Method of manufacturing fluorescent lamp and fluorescent lamp manufactured by this method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2561838A (en) * | 1949-10-28 | 1951-07-24 | Gen Electric | Tipping-off method |
| US3313610A (en) * | 1964-07-09 | 1967-04-11 | Westinghouse Electric Corp | Method of tipping-off exhaust tubing |
| DE3262068D1 (en) * | 1981-01-27 | 1985-03-14 | Emi Plc Thorn | Discharge lamp |
| JPS5897239A (en) * | 1981-12-02 | 1983-06-09 | Toshiba Corp | Bulb and its manufacture |
| JPH01243339A (en) * | 1988-03-25 | 1989-09-28 | Matsushita Electron Corp | Manufacture of fluorescent lamp |
| US6630779B1 (en) * | 2000-06-01 | 2003-10-07 | General Electric Company | Fluorescent lamp with discharge tube bent substantially in plane |
-
2004
- 2004-04-08 EP EP04252134A patent/EP1469506A3/en not_active Ceased
- 2004-04-14 CN CN200410034371.8A patent/CN1551286B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1469506A3 (en) | 2010-03-03 |
| EP1469506A2 (en) | 2004-10-20 |
| CN1551286A (en) | 2004-12-01 |
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