EP2593955A2

EP2593955A2 - Pump tube for a gas discharge lamp, method for production of a pump tube for a gas discharge lamp, and method for filling a gas discharge lamp with a gas filling

Info

Publication number: EP2593955A2
Application number: EP11732436.8A
Authority: EP
Inventors: Richard Scheicher; Andreas Lovich
Original assignee: Osram GmbH
Current assignee: Osram GmbH
Priority date: 2010-07-15
Filing date: 2011-07-12
Publication date: 2013-05-22
Also published as: CN103038853A; WO2012007467A2; DE102010031366A1; WO2012007467A3

Abstract

A pump tube (100) is provided for a gas discharge lamp. The pump tube (100) has a pump hole (110); a first area (104) of the pump tube (100) on one side of the pump hole (110) with an inlet for filling with a gas; a second area (112) of the pump tube (100) on the opposite side of the pump tube (100) with respect to the pump hole (110); and a lamp bulb filling accommodation area (128), which is designed to accommodate at least a portion of a gas filling (124) for the gas discharge lamp and to hold the at least one portion of the gas filling until after the pump tube (100) has been introduced into a lamp bulb of the gas discharge lamp; the lamp bulb filling accommodation area (128) being arranged in the second area (112) of the pump tube (100).

Description

description

Pump tube for a gas discharge lamp, method for

Producing a pump tube for a gas discharge lamp, and method for filling a gas discharge lamp with a gas filling

The invention relates to a pump tube for a

Gas discharge lamp, a method of manufacturing a

Pumprohrs for a gas discharge lamp, and a method for filling a gas discharge lamp with a gas filling.

A conventional gas discharge lamp, for example, a conventional fluorescent lamp, is often based on mercury as a light generator as part of the gas filling of

Gas discharge lamp.

It is desirable to reduce the absolute amount of mercury in a gas discharge lamp, such as a fluorescent lamp. Furthermore, it is often desirable to measure the scattering of the amount of mercury in a gas discharge lamp,

For example, a fluorescent lamp to reduce.

For this purpose, various methods for dosing the

Mercury known.

The shortest tolerance chain in the absolute amount of mercury offer so-called encapsulated embodiments, since the

Mercury in such a case in hermetic

closed capsules during the manufacturing process of the gas discharge lamp can not evaporate. A

Challenge in such an embodiment, as described for example in EP 0 772 219 AI, can be in a clever opening of the capsule in the already

be seen evacuated and sealed gas discharge lamp. In addition, as few additional Parts may be necessary to keep the manufacturing process simple and thus the manufacturing costs low.

Furthermore, open-loaded mercury systems are widely used, such as the Hg-Fe pill. Disadvantage of these systems and the associated production method is the relatively large dispersion of the amount of mercury in the gas discharge lamp. Encapsulated methods offer, with sufficiently accurate dosing, a much lower dispersion of the amount of mercury in the gas discharge lamp. Thus, the absolute amount of mercury in the gas discharge lamp can be reduced. The handling of mercury in hermetically sealed (otherwise airtight) capsules also ensures a separation of mercury dosing and lamp manufacturing and thus a substantially mercury-free lamp manufacturing. A capsule made of special glass is in accordance with EP 0 772 219 AI in the pump stalk (hereinafter also referred to as Pumprohr) in

Gaseinfüllrichtung introduced before the pump hole and fixed there. After the evacuation of the lamp and a

Slow melting, the capsule is opened by laser and thermally heated so that the mercury is driven from the capsule into the fluorescent lamp. Subsequently, the pump stalk is briefly melted off and the fluorescent lamp is completed.

Various embodiments provide a simplified and inexpensive filling of a gas discharge lamp with a gas filling, the more accurate metering

allows at least a portion of the gas filling, for example in an already closed gas discharge lamp.

According to various embodiments, a pumping tube (also referred to as a pumping stem) for a gas discharge lamp is provided, the pumping tube having a pumping hole; a first portion of the pump tube on one side of the Pumping hole having an inlet for filling a gas; a second portion of the pump tube on a relative to the

Pump hole opposite side of the pump tube; and a lamp envelope fill receiving portion configured to receive at least a portion of a gas charge for the gas discharge lamp and retain the at least a portion of the gas charge until after insertion of the blowpipe into a lamp envelope of the gas discharge lamp, the lamp envelope fill receiving portion in the second portion the pump tube is arranged.

Illustratively, according to various embodiments, the part of the gas filling in a specially provided

Lamp bulb receiving area transported in the production during the production in the lamp envelope, without the part of the gas filling escapes from the lamp envelope filling receiving area. The lamp envelope filling receiving area is positioned with respect to the pumping hole on the side which extends farther into the lamp bulb interior than the first area of the pumping tube accessible from the outside of the bulb bulb, which is externally connected to evacuate the bulb tube

Lamp bulb and possibly also for supplying a portion of the filling gas of external lamps. However, it may also be the entire gas filling in the lamp envelope filling receiving area

be included.

Due to the arrangement of the lamp envelope filling receiving area in the second region of the pump tube, a more accurate metering of the gas filling and in particular of the mercury is achieved. Furthermore, it is achieved that no

Section of the pump tube, through which the filling gas,

For example, a noble gas is introduced into the lamp envelope is "contaminated" with mercury, which also contributes to a highly accurate dosage of the absolute amount of mercury and a reduction in the dispersion of the amount of mercury. Also, so can the use of mercury in the Production is better controlled and a burden on

Production as well as the environment with mercury are avoided.

The lamp envelope filling receiving area may be formed as a chamber in the pump tube. Illustratively, this means that part of the example, hollow cylindrical

Pumprohrs as a Pumprohr extension (as viewed from the

Perspective of the pump hole from) can be formed, after introducing the at least a portion of the gas filling on the pump hole opposite side (for example

gas tight) is closed. In this context, it should be noted that when the pumping hole is formed, the side of the second region of the pumping tube facing the latter can likewise be closed, with which the extension forms a chamber into which the at least one part of the gas filling

can be included. In this way, a very simple and therefore inexpensive production is achieved, since no additional separate parts are needed to form the lamp envelope filling receiving area. It is clearly the standard pump tube simply formed with a slightly larger length, so that next to the pump hole still a pump tube extension is formed.

In one embodiment, the lamp envelope filling receiving area may be formed in the outer wall of the pump tube. Thus, for example, in the outer wall of the pump tube in the second region of a depression may be introduced (or the wall of the pump tube may be bent accordingly), which forms the lamp envelope filling-receiving area.

This embodiment also achieves a very simple and thus cost-effective production, since no additional separate parts are needed to form the lamp envelope filling receiving area. It is illustratively the standard pump tube simply formed with a slightly larger length, so that in addition to the pump hole still a Pumprohr extension is formed, which clearly serves to form the depression. The lamp vessel filling receiving area can be set up to receive at least part of the gas filling in solid form, for example in the form of pills,

for example, to record one or more

Mercury-containing pills, for example, for receiving one or more mercury-iron pills. Such mercury iron pills contain mercury, which in

Depending on the ambient temperature is emitted.

In a further development, the lamp envelope filling receiving area can be set up to receive at least part of the gas filling in liquid form, for example in the form of liquid mercury. Both upon introduction of a part of the gas filling in solid form and in liquid form, the lamp envelope filling receiving area can be set up to receive a further part of the gas filling in gaseous form. The further part may be, for example, one or more inert gas.

In another development, the lamp envelope filling receiving area can be set up to receive at least part of the gas filling in gaseous form.

In particular, the entire gas filling, for example a noble gas or a plurality of noble gases and mercury, in the

Lamp bulb charge receiving area to be added.

When the entire gas filling in the lamp envelope filling receiving area is taken up, the lamp envelope can be completely evacuated and then closed, without having to provide additional filling steps via the pump tube.

So can the lamp envelope filling area

For example, be gas-tight, so that the recorded in the lamp envelope receiving area portion of the gas filling is held in this. For example, the Lamp bulb filling receiving area with a lid, for example, be covered in the form of a film, such as a metallic foil and gas-tight sealed or sealed, for example, welded. The film can be very thin or locally thinned or structured (clearly provided with predetermined breaking points). According to another embodiment of the Lampenkolbenfüllung- receiving area can also be fused, then the material of the pump tube can serve to close.

In a further development, the part of the gas filling

Have mercury. In particular, for this case, the embodiments are advantageously used, since it is avoided by the various embodiments, that the first portion of the pump tube comes into contact with the mercury at all. This enables a highly accurate metering of the required mercury, generally the part of the gas filling, for example of the light-generating material. Also, the dispersion of the amount of mercury is further reduced.

According to one embodiment, the pump tube has a plurality of power supply lines for electrodes.

According to one embodiment, the pump tube further comprises a coupled between two power supply lines as an electrode

Wendel on.

According to one embodiment, the pump tube further comprises a plugged onto the pump tube gas discharge lamp plate, which together with the power supply lines and the helix, a pedestal is formed. The lamp bulb filling receiving area can lie between the pump hole and the electrode, whereby the access to the pump hole remains free. Such a pedestal can be prepared separately from the completion of the gas discharge lamp and the lamp envelope filling receiving area to be filled. This allows a better control of the dosage of the part of the gas filling, For example, the mercury dosage, and reduces potential risks.

The exhaust tube can be made of glass, for example, REED glass 8516 from Schott Glas, thus providing a simple way of using, for example, a Nd-Yag laser, that the laser light is substantially completely unattenuated by the material of the lamp envelope and strongly absorbed by the REED glass, whereby the irradiated area of the REED glass can be locally heated strongly and thus the lamp envelope filling receiving area, when it is closed by means of the REED glass, can be opened in a simple manner. The pump tube can be used in a gas discharge lamp, for example a fluorescent lamp.

According to various embodiments, a method for producing a pump tube for a

Gas discharge lamp provided. The procedure can

comprise forming a pumping hole such that a first portion of the pumping tube is formed on one side of the pumping hole with an inlet for introducing a gas, and that a second portion of the pumping tube is disposed on a relative to the inlet

Pump hole is formed opposite side of the pump tube; and forming a lamp envelope fill receiving area on or in the second region of the

Pumprohrs, wherein the lamp envelope filling receiving area is arranged for receiving at least a portion of a gas filling for the gas discharge lamp and for holding the at least a portion of the gas filling until after the insertion of the pump tube into a lamp envelope of the gas discharge lamp.

According to various embodiments, a method for filling a gas discharge lamp with a

Gas filling provided. The method may include inserting a pump tube into a lamp envelope, wherein the Pump tube has: a pump hole; a first portion of the pump tube on one side of the pumping hole having an inlet for evacuating the lamp and for charging a gas; a second portion of the pump tube on a relative to the

Pump hole opposite side of the pump tube; and a lamp envelope fill receiving portion configured to receive at least a portion of a gas charge for the gas discharge lamp and to hold the at least a portion of the gas charge until after insertion of the pump tube into a lamp envelope of the gas discharge lamp

Lamp bulb filling receiving area is arranged in the second region of the pump tube. The method may further comprise evacuating the lamp envelope by means of

Exhaust tube; a closing of the pump tube; and opening the lamp envelope fill receiving area in the lamp envelope so that the portion of the gas filling in the lamp envelope

provided.

In this way, an accurate dosing of the part of the

Gas filling in the lamp bulb allows without the first portion of the pump tube comes into contact with the part of the gas filling.

According to one embodiment, the opening of the

Lamp bulb filling receiving area in the lamp bulb after closing the pump tube done. In this way, the part of the gas filling after the evacuation of the

Lamp flask and optionally after supplying additional parts of the gas filling, for example, a noble gas or a plurality of noble gases, in the lamp envelope available

which makes it possible to reduce the total quantity to be supplied by the part of the gas filling which is in the

Lamp bulb filling receptacle is held

(For example, mercury or a mercury-containing mixture, compound or alloy). The method may further comprise forming a

Pedestal, which has the pump tube. The formation of the pedestal can also be done in advance, separate from the filling of the gas discharge lamp. Thus, dosing of the part of the gas filling into the lamp vessel filling receiving area can be carried out separately from the completion of the gas discharge lamp, in particular in areas correspondingly equipped for handling mercury. In various embodiments, the opening of the

Bulb bulb filling receiving area in the lamp bulb done by means of an induction method or by means of one or more lasers. In this way one becomes

inexpensive contactless opening of the lamp envelope filling receiving area in the lamp envelope after closing the lamp bulb allows.

The method may further comprise filling the

Lamp bulb filling receiving area with the at least part of the gas filling for the gas discharge lamp. The filling may include cleaning a part of the pump tube in which the lamp envelope filling receiving area is formed. The cleaning of the part of the pump tube may be performed using an atmospheric plasma. Furthermore, the filling may include rinsing the cleaned part of the

Pumprohrs with an inert gas, in particular with nitrogen or argon. In particular, in the case of the introduction of

Gas filling in solid form or in liquid form, the filling can be carried out under inert gas and in particular inert gas atmosphere and the inert gas possibly remain in the lamp envelope filling receiving area and form part of the gas filling. The filling may comprise metering the part of the

Filling with liquids by means of an Ink et-system.

Furthermore, the filling may comprise a sealing of the

Lamp envelope filling area, for example with a foil, for example with a metallic foil, or by fusing the lamp envelope fill receiving area.

Furthermore, the filling may include introducing a filled with the part of the gas filling capsule in the

Lamp envelope filling receiving area. This capsule can be closed in a gas-tight manner and fixed in the lamp bulb filling receiving area. This is then not necessarily gas-tight to close.

Embodiments of the invention are illustrated in the figures and are explained in more detail below.

Show it

1 shows a pump tube according to an embodiment;

2 shows a pump tube with filled gas filling in one

Lamp bulb filling receiving area according to a

Embodiment;

3 shows a pump tube with filled gas filling in one

Lamp bulb filling receiving area with mounted coil according to an embodiment;

FIG. 4 shows a flowchart in which a method for filling the lamp vessel charge receiving area according to an exemplary embodiment is shown; FIG. 5 shows a section of a gas discharge lamp according to FIG

From management example;

6 shows a detail of a gas discharge lamp according to a

From management example;

FIG. 7 a detail of a gas discharge lamp according to FIG

Embodiment; and 8 shows a detail of a gas discharge lamp according to an embodiment. In the context of this description, the terms

"connected", "connected" and "coupled" used to describe both a direct and indirect connection, a direct or indirect connection and a direct or indirect coupling. In the figures, identical or similar elements are provided with identical reference numerals, as appropriate.

Fig.l shows a pump tube arrangement 100 according to a

Embodiment.

The pump tube assembly 100 becomes a pedestal

manufactured, as will be explained in more detail below. The pedestal and thus the Pumprohr arrangement 100 is

used in and therefore part of one

Gas discharge lamp. Although in the following concrete implementations the embodiments will be described with reference to a fluorescent lamp, so it is

to point out that alternative embodiments can be applied to any type of gas discharge lamp.

Examples of a gas discharge lamp include:

Low-pressure gas discharge lamp (low-pressure plasma gas discharge lamp, glow discharge gas discharge lamp, for example fluorescent tube, fluorescent lamp,

Neon tube (for example, mercury-vapor lamps or metal vapor low-pressure lamps),

• High pressure gas discharge lamp (this type of

Gas discharge lamp is operated at a pressure of up to about 1 MPa; for example, mercury vapor lamp,

Krypton arc lamp for laser excitation), • High pressure gas discharge lamp (this type of

Gas discharge lamp is operated at a pressure of up to about 10 MPa, for example, high-pressure mercury vapor lamp in the photolithography, Xenon short-arc lamp for Pro ektionszwecken).

Of course, this can be described below

Pumprohr also be used in other gas discharge lamps.

The pump tube arrangement 100 has various

Embodiments a pumping tube (also referred to as pumping stems) 102 on. The pump tube 102 has a first region 104 with a first end region 106 and a second end region 108. The first end portion 106 may protrude from a lamp envelope of the gas discharge lamp when the pump tube 102 is installed in the lamp envelope of the gas discharge lamp. The second end region 108 is connected to a pumping hole 110, so that a gas flow through the pumping hole 110 and the first region 104 is made possible, for example for evacuating the

Lamp flask or for introducing a part of the gas filling (also referred to as filling gas), for example of noble gas (for example, xenon, krypton or neon), in the

Lamp bulb.

In various embodiments, the first

Region 112 has a length in the range of about 1 mm to about 15 mm, for example in a range of about 2 mm to about 8 mm, for example in a range of about 4 mm to about 6 mm.

The pumping hole 110 forms in a conventional exhaust tube vividly its conclusion, whereas in various embodiments on the first portion 104th

with respect to the pumping hole 110 opposite side second region 112 is provided, which illustratively forms a pump tube extension 112. The second region 112 is closed towards the pumping hole 110, for example, closed in a gas-tight manner. In other words, although a first end portion 114 of the second region 112 is mechanically connected to the pumping hole 110, for example, no gas flow from the second region 112 is through the first one thereof

End region 114 to the pumping hole 110 possible. In various embodiments, the second

Region 112 has a length in the range of about 1 mm to about 15 mm, for example in a range of about 2 mm to about 10 mm, for example in a range of about 3 mm to about 8 mm.

In the manufacturing state, as shown in Fig.l, a second end portion 116 of the second portion 112, which is opposite to the first end portion 114, still open, so that in Fig.l the second area illustratively a one-sided

closed hollow cylinder, which is for feeding and

temporary storage or holding a portion of the gas filling is used. As will be explained in more detail below, the part of the gas filling in the form of a capsule (i.e., clearly in solid form), in liquid form or in gaseous form, can be introduced into the hollow cylinder, which subsequently

is closed. Will the part of the gas filling in

Introduced solid state, a fixation can be sufficient, a closure is not required. The second area 112 thus illustratively forms an implementation of a

Lamp bulb filling receiving area. The capsule can

be configured for example, as described in EP 0 772 219 AI.

The example in a so-called pedestrian

manufactured pump tube arrangement 100 has several (for example two) in various embodiments

Power supply 118, 120 for holding / training a Electrode on. It should be noted that in an alternative embodiment, for example in a T8 fluorescent lamp to be formed, one in Fig.l not

illustrated central support may be provided, which carries a cap band, also not shown in Fig.l. In the embodiment shown in Fig.l are the

Center support and the cap band is not required, since the Pumprohr arrangement 100 shown in Fig.l can serve for example for forming a T5 fluorescent lamp.

Furthermore, the pumping tube arrangement 100 has a lamp plate 122 inserted over the pumping tube 102 and fused thereto (for example in the connection region between the pumping hole 110 and the second region 112).

In various embodiments, the blowpipe 102 may be made of glass, for example, REED glass 8516 (available from Schott Glas, for example), which has an increased iron content of about two to four percent by weight.

be prepared.

In the case where the pump tube is provided for a high pressure gas discharge lamp or a high pressure gas discharge lamp, the pump tube 102 may be made of quartz glass or alumina ceramic.

FIG. 2 shows the pump tube arrangement 100 according to FIG. 1, wherein the introduction of the part of the gas filling into the second area 112 is shown as an implementation of the lamp envelope filling receiving area.

As shown in FIG. 2, the part of the gas filling 124, for example by means of a capsule 126, is inserted into the cavity 128 of the second region 112. Alternatively, the part of the gas filling 124 in liquid form or in

Gas mold are introduced, as will be explained in more detail below. The part of the gas filling 124 may, for example, as

Have light generator in the gas discharge lamp serving substance or be formed by this. In various embodiments, the part of the gas filling 124

Have mercury, for example, in pure form (solid, liquid or gaseous) or in a mixture, compound or alloy with other suitable substances. In

various embodiments may be the part of

Gas filling 124 a mercury alloy (for example

Amalgam or a mercury-tin alloy (for example, in the case of a very high operating temperature, wherein with the amount of tin, for example, the mercury evaporating pressure can be changed and adjusted, for example in an energy-saving lamp)). In various embodiments, the portion of the gas fill 124 may be a mercury-iron pill.

Thus, the cavity 128 of the second becomes clear

Area 112 forming Pumprohr extension filled with the portion of the gas filling 124.

In alternative embodiments, it may be provided not to provide the cavity 128 of the pump tube extension 112 as a lamp envelope filling receiving area, but to deform a portion of the wall of the pump tube extension such that a depression is formed in the outer wall of the pump tube extension forms the lamp envelope filling receiving area.

3 shows the pump tube 102 filled with gas filling 124 in the lamp envelope filling receiving area 128 with mounted lamp coil 302 according to an embodiment which illustratively forms a pedestal 300.

As shown in FIG. 3, the second end region 116 of the second region 112 is closed, for example sealed gas-tight, for example by means of local

It should be noted that, in various embodiments, when locally melting the material of the pump tube 102 in the second end region 116 of the second region 112, the material of the pump tube 102 may be melted in the second end region 116 of the second region 112

Gas filling (for example, the mercury) in the

Lamp bulb filling receiving area 128 to be cooled. Alternatively, the opening of the second end region 116 of the second region 112 can also be closed by means of a cover, for example by means of a foil, for example by means of a metallic foil, which is placed on the opening and then welded to the material of the pump tube 102, for example by means of ultrasound -Welding.

Thus, the cavity 128 of the second region 112 becomes

closed or sealed. Furthermore, the lamp filament 302 is between the two

Power supply 118, 120 (for example by means of a

Tensioning machine) and with these mechanically and

electrically connected to form an electrode, so that a current flow between the two power supply lines 118, 120 and the lamp filament 302 is made possible. Thus, that will

Pedestal 300 formed.

1 shows a flow diagram 400, in which a method for filling the lamp vessel charge receiving area with the part of the gas filling 124, which is in gaseous form or in liquid form, according to one exemplary embodiment is shown.

According to the method, in 402, a pipe section located above the pumping hole 110 (ie, with respect to the pumping hole 110 on the opposite side of the first area Page), for example, the second area 112, cleaned, for example by means of an atmospheric plasma.

Further, in accordance with various embodiments, the cleaned pipe section is then purged in 404,

for example, with an inert gas (for example, with

Nitrogen (N2) or argon (Ar)).

Then in 406, the required gas filling amount,

For example, the amount of light material required, for example, the amount of mercury in the

Lamp bulb filling receiving area of the second portion 112 filled, for example, in the cavity 128 or in the recess, not shown, in the outer wall of the second region 112. Thus, in Fig. 406

Gas filling quantity, for example, the required

Quantity of light-emitting material, for example the required one

Amount of mercury in the lamp envelope filling receiving portion of the second portion 112 dosed, for example by means of an Ink et-system in liquid form.

Alternatively, when the part of the gas filling 126 to be introduced is introduced in a solid form (for example, in a closed capsule), the part of the gas filling 126 may be introduced into the lamp vessel filling receiving area of the second area 112 and fixed there, if desired become.

Then, in 408, the lamp envelope filling receiving area is closed, for example gas-tight. In various embodiments, the lamp envelope filling receiving area is closed in such a way that the part of the gas filling introduced into it can not escape or essentially can not escape from the lamp envelope filling receiving area. The closing can be done, for example, by the corresponding pipe section is sealed,

for example, using a flame or a laser. Alternatively, the pipe section and thus the

Cavity 128 or the recess are sealed with a film, for example with a metallic foil

(for example, using ultrasonic welding (for example, rotational ultrasonic welding) of

Friction welding or using a laser). The metallic foil may be, for example, a nickel-containing foil or an iron-containing foil. In

various embodiments, the metallic foil may have a thickness of at most 100 μπι, for example, a maximum thickness of 50 μπι, for example, a thickness in a range of about 20 μπι to about 50 μπι.

It should be noted that in different

Embodiments, the sealing of the second end portion 116 of the second portion 112 relative to the normal plane of the longitudinal direction of the pump tube 102 may be formed inclined to facilitate a later opening of the seal, for example by means of a laser.

After completion of the pedestal 300 this is used in a lamp envelope of a gas discharge lamp, as will be explained in more detail below.

5 shows a section 500 of a gas discharge lamp according to an embodiment.

It should be noted that, for reasons of simplicity of illustration, the pump tube 102 is not completely shown in Figure 5, but only the second portion 112 and the pumping hole 110. It is also the filler 501 shown, in solid form, in liquid form or in gaseous form

may be present, and, if appropriate, according to

"Activation", providing a portion of the gas fill 124, and in various embodiments in the

Lamp bulb filling receiving area is kept closed in the second region 112 of the pump tube 102. In various embodiments, the

Gas discharge lamp, such as a fluorescent lamp, a lamp bulb 502, in which the pump tube is inserted. Furthermore, the gas discharge lamp has a

Lamp base 504 with two electrical connections 506, 508 on. In various embodiments, a

electronic ballast optionally be integrated in the lamp base 504. A respective power supply 118, 120 of the pedestal 300 is electrically coupled to a respective electrical connection 506, 508. In various embodiments, the inner wall of the lamp envelope 502 is coated with a phosphor layer 510, which may contain any suitable phosphor.

In various embodiments, the lamp bulb fill receiving area 128 sealed in the second area 112 and / or optionally, if necessary, the capsule 126 may be closed by means of a through an opening 516 in the phosphor layer 510 (formed by means of

punctually removing the phosphor layer 510) guided light beam 514, for example by means of one of a

Laser source 514 are locally heated and opened so that the portion of the filling held in the lamp envelope filling area 128,

For example, gas filling 124, from the lamp envelope filling receiving area 128 in the closed interior of the

Lamp bulb 502 is released. Thus, the part of the filling, for example, gas filling 124, in the lamp bulb 502, for example, as a light generator and / or the

Plasma formation provided.

Illustratively, for example, to form the opening 516 in the phosphor layer 510, the light beam 514, For example, the laser beam 514, first on the

focused to the opening region of the phosphor layer 510 and a defined region of the phosphor layer 510 is burned out, whereby the opening 516 is formed. The opening may have a diameter in a range of about 50 μπι to about 500 μπι, for example in a range of about 200 μπι to about 400 μπι, for example, a diameter of about 250 μπι, as desired and, for example, depending on the focal length of the laser used 512th

After forming the opening 516 in the phosphor layer 510, the light beam 514, in various exemplary embodiments for opening the, for example, closed lamp envelope filling receiving area 128 in the second area 112 and / or, if appropriate, the capsule 126,

For example, the laser beam 514, refocused on the part to be heated of the surface of the lamp envelope filling receiving area 128 of the pump tube or the capsule surface. The light beam 514, for example the laser beam 514, is thus guided through the opening 516 (see FIG. Thus, the light beam 514, for example the laser beam 514, passes through the aperture 516, i. vividly by the

"burned" phosphor layer 510, into it

Interior of the lamp bulb 510 inside.

By means of the refocused light beam 514, for example of the laser beam 514, the lamp vessel charge receiving area 128 in the second area 112 and / or optionally the capsule 126 is locally overheated and opened in this way. Thus, the previously metered quantity of the portion of the gas filling 124 held in the lamp envelope filling area 128 or additionally in the capsule 126,

For example, the mercury, in the closed lamp, more precisely in the interior of the lamp bulb 510 inside

released. Subsequently, the opening 516 may be concealed in the phosphor layer 510, for example with a type stamp on the outer surface of the lamp bulb 510, whereby the

Lamp type of the gas discharge lamp is specified.

In various embodiments, the pump tube 102 or at least a portion of the second portion 112 of the

Pumprohrs 102 be made of REED glass 8516 (for example, available from the company Schott glass), generally of a material which absorbs the incident light 514 stronger than the material of the lamp bulb 502, so that the light beam 514 substantially completely through the wall of the Lamp bulb 502 passes and greatly overheated the desired area of the pump tube 102 to open the bulb envelope receiving area 128. This is the case, for example, when using a Nd-Yag laser as the laser source 512.

In alternative embodiments, it may be provided that the lamp envelope fill receiving area 128 in the second area 112 and / or the capsule 126 is not opened optically (eg, by laser), but in any other suitable manner. 7 shows a detail of a gas discharge lamp 700 according to another exemplary embodiment.

In various embodiments, the

Lamp envelope fill receiving area 128, for example comprising a metallic clip 702, which

For example, at least one foil 704, for example a metallic foil, holds open by means of inductive heating of the filling, for example gas filling

(for example, mercury) and the film. In this case, an overpressure is generated in the closed lamp envelope filling receiving area 128 and the strength of the film can be reduced, which ultimately leads to destruction, for example, to burst the film, in general the

Can lead to the lamp envelope filling receiving area 128. In Figure 7, two slides are on two

opposite sides of the lamp envelope filling receiving area shown. In alternative

Embodiments may also be provided only a film 704, which only an existing opening of the

Lamp bulb filling receiving area closes. Alternatively, it can be provided that a film is provided, which is partially vividly slipped over the second region 112 and is held by the metallic clamp 702. In various embodiments, the second area may have more than two openings to the lamp envelope filling receiving area, and more than two sheets may be provided for closing the openings of the lamp envelope filling receiving area.

The inductive heating may be provided, for example, by means of a low-frequency signal (for example, from a signal source 706), thus inducing a current (for example in the film) which causes the heating and

finally causing the destruction. Alternatively, the inductive heating can be provided, for example, by means of a high-frequency signal, thus clearly without a required closed circuit

electromagnetic waves are used for "temperature transport".

In various embodiments, an inductive heating, for example, an additionally provided electrically conductive, such as metallic element may be provided, for example, mounted on the pipe section to be melted in the second portion 112 of the pump tube 102, for example, plugged, is, for example in the form of a ground terminal for induction and a thin, tempered wire). In various embodiments, the pedestal (eg pedestal 300) may be configured such that between the pumping hole and the lamp filament, the pump tube (eg, cylindrical) is continued, comparable to the manufacture of an incandescent lamp. In this (for example, cylindrical) cavity, the required gas filling quantity (for example, amount of mercury) with a highly accurate

Metering be introduced under inert gas. Subsequently, the cavity can be closed, for example with a thin film, for example using a laser or an ultrasonic welding process.

In various embodiments, it can be provided, the pump tube, for example, the

Lamp envelope filling receiving area forming cylinder

(For example, glass cylinder), for example, using a laser or an ultrasonic welding process to close. Subsequently, the pedestal can be completed with the lamp filament.

After the base frame has been fused to the lamp bulb 502, the gas discharge lamp can be evacuated and completely closed. Before the gas discharge lamp is ignited for the first time, is for example by means of a

Induction method or by means of a laser, for example, the film heated and thereby melted. The gas filling (for example, the mercury) is then the

Gas discharge lamp available. In addition, due to the heating of the gas filling (for example, the

Mercury) the increased pressure on the film. In a pure encapsulation of glass, the gas filling

(For example, the mercury) also via an opening, for example, the capsule by means of laser exit. With a clip-on metallic sleeve, which, for example, half-side of a plate and half-side of a wire can be formed, can be heated by inductive heating of that part, and the prestressed wire can melt the glass capsule. In various embodiments can be achieved that no additional items in the gas discharge lamp for introducing the gas filling (for example, the

Mercury) are required. Further, in various embodiments, a hermetically sealed embodiment of the mercury-containing capsule may be provided.

8 shows a detail of a gas discharge lamp 800 according to yet another embodiment.

In this embodiment, the second region 112 may be "dimpled" (in other words funnel-shaped crimped) or tapered such that a solid at least partially forming the solid (eg in the form of the capsule 126) is held

In embodiments, the solid can be opened, i. not sealed, for example in the form of a pill,

for example in the form of a per se known Hg-Fe pill, or closed, i. For example, be designed as a sealed capsule 126. Thus, in these embodiments, an opening to be closed in the lamp envelope filling receiving area is not required. The fixation of the solid takes place in different

Embodiments illustrative means of the dotted or tapered portion of the second region 112th

In various embodiments, a simple and thus cost-effective manufacturing process (for example, a laser welding or ultrasonic welding of a

Foil on glass) can be provided which a small heat input to, for example, the capsule or to opening portion of the lamp envelope filling receiving area has to largely prevent mercury evaporation during sealing. In various embodiments, a simple opening of the capsule or the opening part of the

Lamp bulb filling receiving area can be provided by heating, for example, the film and the amount of mercury by means of induction, laser, etc.

In various embodiments, by heating the amount of mercury a high pressure in the capsule or in the lamp envelope filling receiving area arise which causes, for example, the film breaks and the mercury in the already closed (and optionally pumped and optionally with the other components ( for example, noble gas) filled the gas filling)

Gas discharge lamp is released. In various embodiments, reduced manufacturing costs can be achieved by simple methods and a

Reduced number of required items can be achieved.

Various embodiments are applicable to

various or all types of fluorescent lamps or even energy-saving lamps, generally for various or all types of gas discharge lamps.

In various embodiments, the filling of the part of the gas filling (for example, the mercury) in a simple manner in the manufacturing process of the pedestal between the processing in the pedestrian and the

Tensioning machine can be integrated. In various embodiments, a quasi

"Glove box environment" can be realized by concentrated inert gas flushing. In various embodiments, the opening of the capsule or the lamp envelope filling receiving area can clearly be seen in the already evacuated and

sealed gas discharge lamp.

Claims

claims

Pump tube (100) for a gas discharge lamp, comprising:

A pump hole (110);

A first portion (104) of the pump tube (100) on a side of the pumping hole (110) having an inlet for evacuating the lamp and for charging a gas;

A second region (112) of the pump tube (100) on a relative to the pumping hole (110)

opposite side of the pump tube (100); and

A lamp envelope fill receiving portion (128) adapted to receive at least a portion of a gas charge (124) for the gas discharge lamp and hold the at least a portion of the gas charge until after insertion of the pump tube (100) into a lamp envelope of the gas discharge lamp Evacuation and the melting of the

Gas discharge lamp;

• wherein the lamp envelope filling receiving area (128) in the second region (112) of the pump tube (100) is arranged.

Pump tube (100) according to claim 1,

wherein the lamp envelope filling receiving area (128) is formed as a chamber in the pump tube (100).

Pump tube (100) according to claim 1,

wherein the lamp envelope filling receiving area (128) is formed in the outer wall of the pump tube (100).

A pump tube (100) according to any one of claims 1 to 3, wherein the lamp envelope filling receiving area (128) is adapted to receive at least a portion of the gas filling in solid or liquid form.

5. pump tube (100) according to one of claims 1 to 4, wherein the lamp envelope filling receiving area (128) is arranged to receive at least a portion of the gas filling in gaseous form.

The inflatable tube (100) according to any one of claims 1 to 5, wherein the lamp envelope filling receiving area (128) is sealed in a gastight manner, so that in the

Lamp bulb filling receiving area (128) recorded part of the gas filling is held in this.

The exhaust tube (100) according to any one of claims 1 to 6, wherein the part of the gas filling comprises mercury.

Pumpro tube (100) according to one of claims 1 to 7, wherein the pump tube (100) is made of glass, in particular of REED glass 8516 from Schott Glas.

Gas discharge lamp with a pump tube (100) according to one of claims 1 to 8.

A method of filling a gas discharge lamp with a gas filling, the method comprising:

Inserting a pump tube (100) into a lamp envelope, the tube (100) comprising:

A pump hole (110);

A first portion (104) of the pump tube (100) on a side of the pumping hole (110) having an inlet for introducing a gas;

opposite side of the pump tube (100); and

A lamp envelope fill receiving portion (128) adapted to receive at least a portion of a gas filling (124) for the gas discharge lamp and hold the at least one portion thereof

Gas filling (124) until after inserting the Pumprohrs (100) in a lamp envelope the

Gas discharge lamp;

Wherein the lamp envelope filling receiving area (128) is arranged in the second area (112) of the pump tube (100);

Evacuate the lamp bulb by means of

Pump pipes (100);

Closing the pump tube (100);

Opening the lamp envelope fill receiving area (128) in the lamp envelope such that the portion of the gas fill (124) is provided in the lamp envelope.

11. The method according to claim 10,

wherein the opening of the lamp envelope filling receiving area (128) in the lamp envelope after the

Closing the pump tube (100) takes place.

The method of claim 10 or 11, further comprising forming a pedestal (300) having the pump tube (100).

13. The method according to any one of claims 10 to 12,

wherein the opening of the lamp envelope filling receiving area (128) in the lamp envelope takes place by means of an induction method or by means of a laser.

The method of any one of claims 10 to 13, further comprising:

Filling the lamp envelope filling receiving area (128) with the at least part of the gas filling (124) for the gas discharge lamp.

Method according to claim 14,

wherein the filling comprises cleaning a part of the pump tube (100) in which the lamp envelope filling receiving area (128) is formed.

16. The method according to claim 15,

wherein cleaning of a portion of the pump tube (100) is performed using a

Atmospheric plasma.

17. The method according to claim 15 or 16,

wherein the filling comprises rinsing the cleaned part of the pump tube (100) with an inert gas,

in particular with nitrogen or argon.

18. The method according to any one of claims 14 to 17,

wherein the filling comprises metering the portion of the gas filling by means of an ink et system.

19. The method according to any one of claims 14 to 18,

wherein the filling comprises introducing a filled with the part of the gas filling capsule in the

Lamp envelope filling area (128).

20. The method according to any one of claims 14 to 19,

wherein the filling comprises a sealing of the

Lamp bulb filling receiving area (128), in particular by means of a foil.