CN103460333A - Discharge lamp, in particular mercury low-pressure discharge lamp, and method for producing a discharge lamp - Google Patents

Discharge lamp, in particular mercury low-pressure discharge lamp, and method for producing a discharge lamp Download PDF

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Publication number
CN103460333A
CN103460333A CN2012800173048A CN201280017304A CN103460333A CN 103460333 A CN103460333 A CN 103460333A CN 2012800173048 A CN2012800173048 A CN 2012800173048A CN 201280017304 A CN201280017304 A CN 201280017304A CN 103460333 A CN103460333 A CN 103460333A
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China
Prior art keywords
section
glass sheets
during formation
discharge lamp
cross
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CN2012800173048A
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Chinese (zh)
Inventor
赖因霍尔德·施密特
安德烈亚斯·恩格尔
于尔根·迪克特尔
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Osram GmbH
Osram Co Ltd
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Osram Co Ltd
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Publication of CN103460333A publication Critical patent/CN103460333A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • H01J61/045Thermic screens or reflectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/04Electrodes; Screens; Shields
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/70Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72Lamps 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

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Abstract

The invention relates to a discharge lamp (1), in particular a mercury low-pressure discharge lamp, comprising a tubular discharge vessel (2) into which electrode mounts (12, 13, 16, 17) extend over a first end (3, 4) of the discharge vessel (2), with an electrode (11, 15) being arranged on the electrode mounts, wherein the electrode mounts (12, 13, 16, 17) are held in a tubular glass fuse seal (14, 18) arranged at the end, which glass fuse seal has a cross-sectional enlargement, wherein the cross-sectional enlargement (20) is formed on the glass fuse seal (14, 18) so as to be set back with respect to that front end (23) of the glass fuse seal (14, 18) which faces the electrode (11, 15), when viewed in the direction of the longitudinal axis (A) of the glass fuse seal (14, 18). The invention also relates to a method for producing a discharge lamp (1).

Description

Discharge lamp, especially low-pressure mercury discharge lamp and for the manufacture of the method for discharge lamp
Technical field
The present invention relates to a kind of discharge lamp, especially a kind of low-pressure mercury discharge lamp, discharge vessel with tubulose, in the discharge vessel of described tubulose, electrode holder extends at least one end of discharge vessel, be provided with electrode on described electrode holder, wherein said electrode holder is maintained in the bar-shaped during formation of glass sheets sealed portion be arranged on distolateral, and described during formation of glass sheets sealed portion has the cross section widening portion.
In addition, the present invention relates to a kind of method for the manufacture of discharge lamp.
Background technology
The design of this class is for example from US3, known in 898,511.
The luminous flux of fluorescent lamp is main relevant with the mercury vapor pressure in lamp with light output.Mercury vapor pressure passes through the temperature at the coldest position (cold spot, Cold Spot) in lamp to be determined, described temperature is relevant with transition temperature again.When the coldest position has the temperature of about 45 ℃, just in particularly advantageous mode, produce best luminous flux and light output.Because be in most of the cases overheated under the normal ambient temperature of the coldest position in luminous element, in order to guarantee best luminous flux, so must produce a still colder position by technological means.
This for example is known that from EP 1 253 623 A2 in the during formation of glass sheets sealed portion and is fixed between the electrode on electrode holder and separate with the during formation of glass sheets sealed portion and with interval turning up the soil is introduced as the independent disk shaped part of thermal insulation board.
Be known that in addition application so-called cold pin technology (kaltfu β technik) in clavate lamp and circular lamp, in order to can improve mentioned hereinbefore theme.This class way is known from DE102006033672A1.In the cold spot lamp of the lamp that the formation illustrated there is the both sides grafting, filament is arranged on opposed end, and described end represents electrode, and described electrode keeps by base or electrode holder.Described electrode holder has different length on the opposed end of discharge vessel.Mercury vapor pressure in described lamp depends on the temperature at the coldest position on the lamp socket edge of the temperature of cold spot or longer base.Cold pin (Kaltfu β) or described longer base are sized to, and make the liquid mercury in discharge lamp be heated to the temperature of about 49 ℃ under the ambient temperature of about 35 ℃ on the cold spot of definition like this.
Summary of the invention
The object of the invention is to, realize a kind of discharge lamp, wherein luminous flux and light output are modified with respect to known lamp.Also having a purpose is to realize a kind of corresponding method for the manufacture of this class lamp, has wherein therefore improved luminous flux and light output.Especially, this should carry out as follows: form the cold position of lamp on the lamp end, yet the measure required on this can not produce the impact of not expected to the burning voltage in lamp and ignition voltage at the lamp place.
Described purpose realizes by a kind of a kind of discharge lamp and method with feature according to claim 14 with feature according to claim 1.
Especially be configured to low-pressure mercury discharge lamp according to discharge lamp of the present invention.Discharge lamp comprises the discharge vessel of tubulose, and in described discharge vessel, electrode holder extends on the first end of discharge vessel.Be provided with electrode on electrode holder, wherein said electrode holder is maintained in the during formation of glass sheets sealed portion that is arranged on the tubulose on distolateral.The during formation of glass sheets sealed portion of tubulose has the cross section widening portion.From the direction of the longitudinal axis of during formation of glass sheets sealed portion, observe, this cross section widening portion with respect to the travelling backwards of the leading section towards electrode of during formation of glass sheets sealed portion be formed on the during formation of glass sheets sealed portion.The very special setting by this class position, reduce the temperature transmission from filament or electrode to the lamp end effectively.The lamp end becomes position the coldest in lamp or so-called cold spot thus, and therefore mercury vapor pressure can correspondingly be conditioned.In this design of discharge lamp, therefore luminous flux and light output can correspondingly be modified, and the temperature at the coldest position is compared and can be lowered with traditional way.Therefore preferably, the coldest position can be adjusted on the temperature of about 45 ℃.In addition, the very special structure in position of the cross section widening portion by the during formation of glass sheets sealed portion has also prevented this voltage of burning to lamp and the issuable negative effect of ignition voltage.The lamp end causes very effectively preventing direct heat transmission with respect to the shielding of electrode, and the heating of lamp end obviously reduces.
Preferably propose, the cross section widening portion is terminated on the trunk of during formation of glass sheets sealed portion at the middle(-)third place of the length of during formation of glass sheets sealed portion.This position of cross section widening portion is special, and to be connected to stable fixedly aspect be favourable and can not affect other parts, particularly electrode holder and electrode at this.
From the direction of longitudinal axis, observe, during the cross section widening portion preferably is terminated to the trunk of during formation of glass sheets sealed portion on the height of the circular cross section of during formation of glass sheets sealed portion.When the during formation of glass sheets sealed portion its place ahead, on the end of electrode, to have be not usually circular but during oval-shaped cross section, so just be easy to act as that this class cross section widening portion is formed on the during formation of glass sheets sealed portion around ground and while forming with the identical degree of depth, can between the discharge vessel of described during formation of glass sheets sealed portion and tubulose, form different distances.
Preferably propose, the leading section of during formation of glass sheets sealed portion is configured to than the widening portion on front end of during formation of glass sheets sealed portion and the widening portion of the longitudinal part section between the cross section widening portion.Described widening portion than the cross section widening portion very little form.This widening portion for example can obtain due to the melting of electrode holder on front end.
Preferably propose, the distance of observing from the direction perpendicular to longitudinal axis between the inboard of the radially outer position of cross section widening portion and discharge vessel is less than 5mm, particularly is less than 3mm.
The during formation of glass sheets sealed portion for example can design according to the type of coil of pipes, wherein seals the glass plate of discharge vessel and compares the pipe ground prolongation with less diameter with discharge vessel around having.Electrode holder is can be in described pipe directed and can fix by melting on its end.Additionally, for example pump line also can be directed in described pipe, and via described pump line, discharge vessel can be evacuated, and can fill discharge vessel by enough gas.
Preferably propose, the cross section widening portion is configured to fully the trunk around the during formation of glass sheets sealed portion.Therefore can especially effectively prevent the heat transmission on the lamp end.According to a favourable embodiment, the cross section widening portion is configured to the web only radially extended.
Therefore, in this class design, in three-dimensional observation looping around web, therefore described web also is configured to be close to plate-like.
But in the embodiment of an alternative, can propose, the cross section widening portion can form cup-shapedly.
Particularly in this class, in cup-shaped embodiment, propose, the free end in the place ahead of cross section widening portion has radially goes up outwards directed terminal part section.Described terminal part section so near vertical are pointed in longitudinal axis discharge vessel and the during formation of glass sheets sealed portion.By described specific terminal part section, to the distance location of the inboard of discharge vessel also can with around mode sets very exactly, and therefore can very accurately realize the desired shield effectiveness transmitted about heat.
Can propose in another embodiment, the cross section widening portion can be configured to pipe section section.In the preferred embodiment of this class, especially propose, pipe section section is branched off and proceeds to subsequently basically until the part section section that free end forms with the diameter remained unchanged from trunk punishment.
Preferably propose, with respect to the leading section of during formation of glass sheets sealed portion, the direction travelling backwards ground along longitudinal axis arranges the terminal part section.Therefore, from the direction of longitudinal axis, observe, here the cross section widening portion does not stretch out the leading section of during formation of glass sheets sealed portion yet.
Preferably propose, observe from the direction of longitudinal axis, the terminal part section on the height of the non-circular cross section of the trunk of during formation of glass sheets sealed portion to arrange with respect to the contactless mode of trunk.
The during formation of glass sheets sealed portion particularly forms with cross section widening portion single type ground, and therefore, this bi-material is glass.The design of this class single type can realize the minimizing of member on the one hand, and can realize on the other hand avoiding the position of related features with respect to the parts that separate.
Preferably propose, discharge lamp is configured to that both sides peg graft.Described discharge lamp especially is configured to the clavate lamp of the discharge vessel with linearity, wherein the electrode holder of the first electrode is compared in the inside that extends to further discharge vessel with the electrode holder of the second electrode on the first end of discharge vessel, during described the second electrode extends to inside on the second end of discharge vessel.This class design is corresponding to the cold pin technology of having mentioned, to such an extent as to the electrode holder extended to further in the inside of discharge vessel forms cold pin on the lamp end.Just in the combination of the cross section widening portion of the during formation of glass sheets sealed portion in the inside with discharge vessel, particularly in the zone of the cross section of the circle of during formation of glass sheets sealed portion, can realize especially significantly improved light output and the improved luminous flux about the as far as possible little heat transmission from electrode to the lamp end, lamp mentioned hereinbefore and not produce the advantage on the impact of not expected of the burnup voltage of lamp and ignition voltage.Therefore, cold pin technological selection provides on a side of the cross section widening portion that also is provided with the during formation of glass sheets sealed portion of discharge vessel.
But also can not apply cold pin technology by the cross section widening portion that the during formation of glass sheets sealed portion is set, in the situation that do not increase the distance between electrode and lamp end, just be accompanied by temperature and descended and realize enough shieldings of lamp end.Here, the electrode holder of the first electrode is compared with the electrode holder of the second electrode, does not extend to further in the inside of discharge vessel.To this advantageously, can provide large as far as possible discharge length thus, so the dark end between corresponding lamp end and the electrode that is associated of lamp can form on both sides in the same manner and relatively shortly.
The electrode holder of the second electrode is preferably clamped by the during formation of glass sheets sealed portion that is arranged on distolateral tubulose equally, but wherein said during formation of glass sheets sealed portion does not have the cross section widening portion forcibly.
But can also propose, discharge vessel is configured to that non-rectilinear is that extend and that be for example the U-shaped bending, repeatedly crooked, ring-type or helical form coiling.
The invention still further relates in addition that a kind of described discharge lamp has the discharge vessel of tubulose for the manufacture of the discharge lamp method of low-pressure mercury discharge lamp particularly, in described discharge vessel, electrode holder extends on the first end of discharge vessel.Be provided with electrode on electrode holder, wherein said electrode holder is maintained in the during formation of glass sheets sealed portion that is arranged on the tubulose on distolateral, and the during formation of glass sheets sealed portion of described tubulose forms the cross section widening portion.From the direction of the longitudinal axis of during formation of glass sheets sealed portion, observe, the cross section widening portion with respect to the travelling backwards of the front end towards electrode of during formation of glass sheets sealed portion be formed on the during formation of glass sheets sealed portion.
Particularly advantageously, the cross section widening portion produces by the pressurizing and deformation (Stauchung) of the heated glass material of during formation of glass sheets sealed portion.When the cross section widening portion be configured to that simple on the trunk of during formation of glass sheets sealed portion particularly only radially extend around web the time, this is only particularly advantageous.
But can propose in the way of an alternative, implement the additional melting of glass material on the existing trunk of during formation of glass sheets sealed portion, therefore realize subsequently the cross section widening portion.This is particularly favourable in the cup-shaped design of the pipe section section as the cross section widening portion or embodiment.
Also advantageously realize by the present invention, the shortening of discharge length can not occur.In addition, do not need long base or long electrode holder, in order to can make electrode as far as possible far away from the lamp end.Therefore the base side, in the lamp of particularly pegging graft in both sides, can remain unchanged.But it is to be noted, this is not this situation in mentioned cold pin technology.
In further feature accessory rights of the present invention requirement, accompanying drawing and accompanying drawing explanation, draw.The above-mentioned feature of mentioning in specification and Feature Combination and the feature only illustrated separately in the accompanying drawings and Feature Combination and/or feature and the Feature Combination only in the accompanying drawing explanation, mentioned, not only can in the combination of correspondingly explanation, use, and can in other combination or individually, use, and can not depart from the scope of the present invention.
The accompanying drawing explanation
Below according to schematic diagram, elaborate embodiments of the invention.Accompanying drawing illustrates:
Fig. 1 illustrates the schematic sectional view according to an embodiment of discharge lamp of the present invention;
Fig. 2 illustrates the local zoomed-in view partly of the first embodiment of the during formation of glass sheets sealed portion with cross section widening portion;
Fig. 3 illustrates the cutaway view had according to the amplification of the local part of the discharge lamp of the during formation of glass sheets sealed portion of the second embodiment and cross section widening portion according to of the present invention;
Fig. 4 illustrates the cutaway view had according to the amplification of the local part of the discharge lamp of the during formation of glass sheets sealed portion of the 3rd embodiment and cross section widening portion according to of the present invention;
Fig. 5 illustrates a chart, wherein temperature and the luminous flux at the coldest position of lamp depend on the ambient temperature for the discharge lamp according to prior art on the one hand, and depend on the other hand the ambient temperature for the embodiment according to discharge lamp of the present invention.
Identical or element that function is identical is provided with identical Reference numeral in the accompanying drawings.
Embodiment
The schematic sectional view of discharge lamp 1 shown in Figure 1, described discharge lamp is configured to low-pressure mercury discharge lamp.It is the clavate lamp of pegging graft in both sides that described discharge lamp is designed in an embodiment.For this reason, described discharge lamp comprises the discharge vessel 2 of tubulose, and described discharge vessel is configured to linearity according to the view in Fig. 1.Correspondingly on opposed lamp end 3 and 4, forming lamp socket 5 and 6 are arranged respectively, be respectively arranged with electrical contacts 7,8,9,10 and described electrical contacts and stretch out on described lamp socket.The discharge lamp 1 of pegging graft in both sides comprises the first electrode 11, and described the first electrode keeps via electrode holder 12 and 13.Electrode holder 12 and 13 is melted and extends to via first end 3 in the inside of discharge vessel 2 in during formation of glass sheets sealed portion 14.The during formation of glass sheets sealed portion 14 that is also referred to as coil of pipes is configured to tubulose, and electrode holder 12 and 13 directed and remain in described during formation of glass sheets sealed portion and melting partly.
On opposed side and then on the second lamp end 4, same formation has electrode 15, and described electrode keeps via two electrode holders 16 and 17.In the during formation of glass sheets sealed portion 18 that these two electrode holders 16 and 17 form on same tubulose ground equally, be melted.Electrode holder 16 and 17 extends in the inside of discharge vessel 2 via the second lamp end 4.Especially form discharge path between electrode 11 and 15.
As the view from Fig. 1, these two the first electrode holders 12 are compared in the inside that extends to further discharge vessel 2 with 17 with the second electrode holder 16 with 13.Thus, during therefore when driving discharge lamp 1, the coldest position 19 is formed in the zone of lamp end 3.By further extending internally of electrode holder 12 and 13, cold pin technology is formed in discharge lamp 1, and wherein said cold pin is formed by described longer base or electrode holder 12 and 13.
Be appreciated that, the first cross section widening portion 20 is formed on during formation of glass sheets sealed portion 14.Described cross section widening portion 20 Perfect Rings form around ground, and in addition, observe on the direction of the longitudinal axis A of discharge lamp 1, and then also observe from the direction towards during formation of glass sheets sealed portion 14, described cross section widening portion is formed between the first lamp end 3 and the first electrode 11.In addition, in other local regulation, on the direction of longitudinal axis A, observe, described the first cross section widening portion 20 be formed in during formation of glass sheets sealed portion 14 in the Y-Z plane basically on the height of circular cross section.Therefore especially, being essentially identical apart from d1 on around direction and preferably being less than 3mm between the inboard 21 of the position 20a of the radially outermost of cross section widening portion 20 and discharge vessel 2.
On an opposed side, the second cross section widening portion 22 is formed on the during formation of glass sheets sealed portion 18 there.Described the second cross section widening portion also Perfect Ring around ground realize and the same direction in longitudinal axis A on observe on the height of cross section of the circle that is formed in during formation of glass sheets sealed portion 18.Apart from d2, preferably be configured to identical with distance d1.
The amplification view of the local part of an embodiment of discharge lamp 1 shown in Figure 2.Be appreciated that, in this design, cross section widening portion 20 only is configured at directed in the radial direction web, so in three-dimensional observation, be designed to horizontal orientation around ring or disk.Illustrate in addition, described cross section widening portion 20 is offset or travelling backwards ground formation backward with respect to the leading section 23 of during formation of glass sheets sealed portion 14.Especially, cross section widening portion 20 is formed in 1/3rd places, centre of the total length of during formation of glass sheets sealed portion 14.In shown embodiment, the cross section widening portion 20 on the trunk 24 of during formation of glass sheets sealed portion 14 forms in the zone of the circular cross section basically that terminates in trunk 24.On the direction towards leading section 23, and then cross section widening portion 20 forms the part that does not have circular cross section that trunk 24 is arranged.This exemplarily dwindles to illustrate by the cross section between leading section 23 and cross section widening portion 20 in cutaway view.Thus, form another widening portion 25 on leading section 23.But this widening portion be significantly less than cross section widening portion 20 and with mentioned pass through that cross section widening portion 20 realizes functional irrelevant.
The schematic sectional view of another embodiment of discharge lamp 1 is shown with the view that is similar to Fig. 2 in Fig. 3.In this design, the cross section widening portion is configured to cup-shaped and same Perfect Ring and forms around axis A around ground.
At this, the cross section widening portion 20 on position 26 also ends at trunk 24, and wherein position 26 also is positioned at 1/3rd places, centre of the length of during formation of glass sheets sealed portion 14 at this.Described position 26 especially also has in the zone of basically circular cross section at trunk 24 at this.
Be different from the design in Fig. 2, only be not designed at directed in the radial direction web at this cross section widening portion 20, and 26 modes with swing outwards and to forward position are extended towards the direction of front end 23 from position.On the direction of longitudinal axis A, observe, cross section widening portion 20 forms and terminates in to travelling backwards again the terminal part section 27 of radial directed with respect to leading section 23.Then, described terminal part section has again the radially position 20a of outermost, wherein at this, between the inboard 21 of the position of described outermost 20a and discharge vessel the distance also represent apart from d1, described distance equally also preferably is less than 3mm.
The schematic sectional view of another embodiment of discharge lamp 1 is shown with the view that is similar to Fig. 2 in Fig. 4.In this design, the cross section widening portion is configured to pipe section section 28 and same Perfect Ring forms around axis A around ground.
At this, the cross section widening portion 20 on position 26 also ends at trunk 24, and wherein, position 26 also is positioned at 1/3rd places, centre of the length of during formation of glass sheets sealed portion 14 at this.Especially, this position 26 also has in basically circular transverse cross-sectional area at trunk 24 at this.
Design in this also is different from Fig. 2, cross section widening portion 20 only is not designed to the web of locating in the radial direction yet, and 26 modes with swing outwards and to forward position are extended towards the direction of leading section 23 from position.On the direction of longitudinal axis A, observe, cross section widening portion 20 forms and terminates in to travelling backwards again the terminal part section 27a of radial directed with respect to leading section 23.Then, described terminal part section has again the radially position 20a of outermost, and wherein the distance between the inboard 21 of this position at described outermost 20a and discharge vessel also represents apart from d1, and described distance equally preferably is less than 3mm.
As be appreciated that, the pipe section section 28 and then 26 initial part sections of outwards widening from position of cross section widening portion 20 has terminal part section 27a, described terminal part section until freely leading section 27b there is the diameter basically remained unchanged.In this embodiment, therefore the position 20a of outermost almost forms on the whole length of section's section 27a endways.
One as shown in Figure 2 in design preferably, on the direction of longitudinal axis A, observe, cross section widening portion 20 produces by the pressurizing and deformation of the existing glass material of during formation of glass sheets sealed portion 14.There is no additional glass material implantation glass fusion sealed portion 14 when pressurizing and deformation.As an alternative, if necessary, also can apply additional glass.
Especially in a design shown in Fig. 3 or Fig. 4, cross section widening portion 20 produces in the following way, in existing during formation of glass sheets sealed portion 14 by the melting on position 26 of additional glass material, therefore and also according to cup, produce additional moulding subsequently.
But, in all embodiments, during formation of glass sheets sealed portion 14 forms with cross section widening portion 20 single type ground, and therefore described during formation of glass sheets sealed portion also has identical glass material.
A chart shown in Figure 5, wherein for T5HO54 watt of lamp, luminous flux output LS is arranged on the vertical axis on the left side in the mode of percentage, thereby and on vertical axis on the right the temperature at the coldest position of explanation and explanation take ℃ cold spot as unit.On horizontal axis, ℃ ambient temperature T as unit is take in explanation u.
At this, curve II representative, according to the luminous flax curve of the discharge lamp of prior art, does not wherein form this class cross section widening portion 20.Curve III illustrates the temperature curve of the cold spot of the lamp that does not have this class cross section widening portion 20.
In contrast, curve IV is illustrated in the curve according to the luminous flux in the discharge lamp 1 of Fig. 1 to 3.In addition, curve V illustrates the temperature curve according to cold spot or the coldest position 19 of the discharge lamp 1 of Fig. 1 to 3.
As known from the chart neutralization curve stretches, under relevant ambient temperature, the temperature at the coldest position 19 is by the discharge lamp according to Fig. 1 to 3, with respect to traditional lamp that does not there is this class cross section widening portion, can reduce about 10 ℃ on location-specific position.In contrast, can be expressly understood that, under interested ambient temperature, luminous flux, also is enhanced with respect to traditional lamp that does not have the cross section widening portion according to shared percentage on the position with respect to the leading section travelling backwards.

Claims (15)

1. a discharge lamp (1), low-pressure mercury discharge lamp particularly, discharge vessel (2) with tubulose, in described discharge vessel, electrode holder (12,13,16,17) at the first end (3 of described discharge vessel (2), 4) on, extend, be provided with electrode (11,15) on described electrode holder, wherein said electrode holder (12,13,16,17) be maintained in the during formation of glass sheets sealed portion (14,18) that is arranged on the tubulose on distolateral, described during formation of glass sheets sealed portion has the cross section widening portion
It is characterized in that,
In described during formation of glass sheets sealed portion (14, on the direction of longitudinal axis 18) (A), observe, described cross section widening portion (20,22) with respect to described during formation of glass sheets sealed portion (14,18) towards described electrode (11,15) be formed on described during formation of glass sheets sealed portion (14,18) to leading section (23) travelling backwards.
2. discharge lamp according to claim 1 (1),
It is characterized in that,
Described cross section widening portion (20,22) is terminated on the trunk (24) of described during formation of glass sheets sealed portion (14,18) at 1/3rd places, centre of the length of described during formation of glass sheets sealed portion (14,18).
3. discharge lamp according to claim 1 and 2 (1),
It is characterized in that,
On the direction of described longitudinal axis (A), observe, described cross section widening portion (20,22) terminates in the described trunk (24) of described during formation of glass sheets sealed portion (14,18) on the height of the cross section of the circle of described during formation of glass sheets sealed portion (14,18).
4. discharge lamp according to claim 1 and 2 (1),
It is characterized in that,
Described leading section (23) is configured to than the widening portion (25) on described leading section (23) of described during formation of glass sheets sealed portion (14,18) and the described widening portion (25) of the longitudinal part section between described cross section widening portion (20,22).
5. according to the described discharge lamp of one of the claims (1),
It is characterized in that,
At described cross section widening portion (20,22) distance (d1 observed on the direction perpendicular to described longitudinal axis (A) between radially outer position (20a) and the inboard (21) of described discharge vessel (2), d2) be less than 5mm, particularly be less than 3mm.
6. according to the described discharge lamp of one of the claims (1),
It is characterized in that,
Described cross section widening portion (20,22) form Perfect Ring around ground around the trunk (24) of described during formation of glass sheets sealed portion (14,18).
7. according to the described discharge lamp of one of the claims (1),
It is characterized in that,
Described cross section widening portion (20,22) is configured to the web only radially extended.
8. according to the described discharge lamp of one of claim 1 to 6 (1),
It is characterized in that,
Described cross section widening portion (20,22) is configured to cup-shaped or is configured to pipe section section (28).
9. discharge lamp according to claim 8 (1),
It is characterized in that,
In cup-shaped design, described cross section widening portion (20, the free end in the place ahead 22) has radially outward directed terminal part section (27), perhaps at described cross section widening portion (20,22), in the embodiment as pipe section section (28), terminal part section (27a) has until the diameter that free end (27b) remains unchanged.
10. discharge lamp according to claim 9 (1),
It is characterized in that,
(27,27a) described leading section (23) the travelling backwards ground on the direction of described longitudinal axis (A) with respect to described during formation of glass sheets sealed portion (14,18) arranges described terminal part section.
11. according to the described discharge lamps in one of claim 9 or 10 (1),
It is characterized in that,
On the direction of described longitudinal axis (A), observe, described terminal part section (27,27a) on the height of the non-circular cross section of the described trunk (24) of described during formation of glass sheets sealed portion (14,18) to arrange with respect to the contactless mode of described trunk (24).
12. according to the described discharge lamp of one of the claims (1),
It is characterized in that,
Described during formation of glass sheets sealed portion (14,18) forms with described cross section widening portion (20,22) single type ground.
13. according to the described discharge lamp of one of the claims (1),
It is characterized in that,
Described discharge lamp is configured to the both sides grafting, the clavate lamp that particularly there is the discharge vessel of linearity, the electrode holder (12 of wherein said the first electrode (11), 13) with the electrode holder (16 of the second electrode (15), 17) compare, extend to further the inside of described discharge vessel (2) on the described first end (3) of described discharge vessel (2) in, during described the second electrode extends to described inside on the second end (4) of described discharge vessel (2).
14. one kind for the manufacture of discharge lamp (1), the method of low-pressure mercury discharge lamp particularly, described discharge lamp has the discharge vessel (2) of tubulose, in described discharge vessel, electrode holder (12,13,16,17) at the first end (3 of described discharge vessel (2), 4) on, extend, be provided with electrode (11,15) on described electrode holder, wherein said electrode holder (12,13,17,18) be maintained in the during formation of glass sheets sealed portion (14,18) that is arranged on the tubulose on distolateral, described during formation of glass sheets sealed portion forms the cross section widening portion
It is characterized in that,
In described during formation of glass sheets sealed portion (14, on the direction of described longitudinal axis (A) 18), observe, described cross section widening portion (20,22) with respect to described during formation of glass sheets sealed portion (14,18) towards described electrode (11,15) be formed on described during formation of glass sheets sealed portion (14,18) to leading section (23) travelling backwards.
15. method according to claim 14,
It is characterized in that,
Described cross section widening portion (20,22) by described during formation of glass sheets sealed portion (14, the pressurizing and deformation of heated glass material 18) produces, or by the additionally melting and producing on the trunk (24) of described during formation of glass sheets sealed portion (14,18) of described glass material.
CN2012800173048A 2011-04-04 2012-03-27 Discharge lamp, in particular mercury low-pressure discharge lamp, and method for producing a discharge lamp Pending CN103460333A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011006700A DE102011006700A1 (en) 2011-04-04 2011-04-04 Discharge lamp, in particular low-pressure mercury discharge lamp, and method for producing a discharge lamp
DE102011006700.0 2011-04-04
PCT/EP2012/055378 WO2012136510A1 (en) 2011-04-04 2012-03-27 Discharge lamp, in particular mercury low-pressure discharge lamp, and method for producing a discharge lamp

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Application publication date: 20131218