EP1912242A2 - Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge - Google Patents

Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge Download PDF

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Publication number
EP1912242A2
EP1912242A2 EP08100654A EP08100654A EP1912242A2 EP 1912242 A2 EP1912242 A2 EP 1912242A2 EP 08100654 A EP08100654 A EP 08100654A EP 08100654 A EP08100654 A EP 08100654A EP 1912242 A2 EP1912242 A2 EP 1912242A2
Authority
EP
European Patent Office
Prior art keywords
metering
mercury
feed channel
channel
discharge vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08100654A
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German (de)
English (en)
Other versions
EP1912242A3 (fr
Inventor
Petar Stanic
Jürgen REMDE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flowil International Lighting Holding BV
Original Assignee
Flowil International Lighting Holding BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flowil International Lighting Holding BV filed Critical Flowil International Lighting Holding BV
Publication of EP1912242A2 publication Critical patent/EP1912242A2/fr
Publication of EP1912242A3 publication Critical patent/EP1912242A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H01J9/395—Filling vessels
    • 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

Definitions

  • the invention relates to a method for introducing a precisely metered amount of mercury in the discharge vessel of a lamp, in particular in a straight fluorescent lamp, wherein the discharge vessel is connected to a lamp holder and acted upon by the lamp holder with a gas stream and further via a mercury introduction channel with a predetermined amount Mercury is filled. Furthermore, the invention relates to a corresponding device.
  • Fluorescent lamps are produced on fully automatic production machines, where lamp blanks in a horizontal position undergo various processes. These include: baking out the phosphors slurried into the discharge vessel, melting an electrode at the end of the discharge vessel, evacuating the discharge vessel, filling the discharge vessel with an inert filling gas, introducing a predetermined amount of mercury and then hermetically sealing the discharge vessel at both ends of the discharge tube ,
  • the heating of the mercury strip in the finished lamp has the consequence that possibly other unwanted components, in particular H 2 are released from the metal strip, which negatively influence the ignition and burning properties of the lamp.
  • a getter material is usually additionally attached to the metal strip, which also has to be heated inductively to activate it.
  • the heating necessary to activate the getter or to release the mercury is achieved by inductive energy input, wherein a very strong alternating electromagnetic field must be applied for heating the metal strip to 900 ° to 1000 ° over a period of 10 to 30 seconds.
  • the energy consumption at a lamp throughput of 7000 / h is considerable and the energy efficiency of this method is extremely low.
  • the production of the metal strip with pressed-on mercury and getter compounds (usually in welded ring form) and the handling in the lamp manufacturing make the getter tape technology very expensive and expensive.
  • the object of the present invention is in contrast to provide a method for introducing a precisely metered amount of mercury in the discharge vessel of lamps, with which the dosage can be made much more accurate than in the prior art. Furthermore, a corresponding device should be specified.
  • This object is achieved according to a central idea of the present invention in that in a preparation step at or after the metering of the amount of mercury to be introduced, the mercury is placed in a metering volume in the form of a single contiguous drop, then in a filling step, the entire amount of mercury to be incorporated Maintaining the previously formed drop is transported into the discharge vessel and wherein a switching mechanism is provided, which bypasses the gas flow through the bypass passage during the preparation step and the bypass passage blocks during the filling step, such that the gas flow during the blocking of the bypass channel on the dosing volume is guided and entrains the drops in the discharge vessel.
  • a key consideration therefore is to bring the total gas flow for the process of introduction behind the already pre-dosed drops of mercury, to let the droplets entrained by the gas flow into the discharge vessel.
  • the dosage of the droplet could already be made spatially separated or well in advance, it is preferred if the metering takes place through or within the metering volume. However, it is ensured that exactly the predosed amount of mercury is ready for filling into the discharge vessel.
  • the drop is formed as a structure of at least approximately spherical shape.
  • the device is accordingly provided in a further preferred embodiment with a metering bore which is dimensioned so that the drop therein into a single, formed by the metering bore in the periphery to a predetermined diameter ball.
  • the metering well is designed so that the drop can only fit as a ball, which is also claimed as an independent concept of the present invention.
  • the metering bore was elongated, so that the mercury has split into a plurality of small balls. However, this division is not reproducible, the balls are small and are poorly promoted.
  • deflections with angles greater than or equal to 90 ° are advantageously avoided.
  • the drop over two deflections, each with about 45 ° can be performed.
  • a curved acceleration channel can be further provided that this opens kink-free and / or steplessly in the feed channel.
  • the drop of mercury is guided in such a way that steps or edges in the direction of introduction are avoided during transitions.
  • Corresponding transitions can be formed either completely flat or the droplets can be guided so that the diameter of guide means at the transitions widened, so that the drop of mercury in the direction of motion encounters no obstacle.
  • the metering volume can be formed as a metering bore and have a length which corresponds approximately to the diameter of a circle inscribed in the cross section of the metering bore.
  • the length of the metering well may also be sized slightly shorter than the diameter of a circle inscribed in the cross section of the metering well to ensure that the mercury flow is cut off above the metering well despite the high surface tension of the mercury the metering hole actually only makes exactly one drop.
  • the object of the present invention is also achieved by a device for introducing a precisely metered amount of mercury into the discharge vessel of lamps, in particular straight fluorescent lamps comprising at least one lamp receptacle to which the discharge vessel is connected, wherein the device continues to be characterized in that the lamp receptacle has a feed channel which communicates with the interior of the discharge vessel and a metering unit is provided which pre-meters a predetermined amount of mercury in a metering volume and transfers the metered volume in the metered volume of mercury to the feed channel for the purpose of introduction into the discharge vessel wherein the metering volume is sized to form the mercury therein into a single drop, and wherein the metering unit includes a switching mechanism to bypass a metering volume through a bypass passage if necessary, block and / or redirect the stream of gas flowing.
  • the key consideration is, if necessary, redirect the gas flow during the introduction of the drop of mercury such that the drop is entrained by the gas flow into the discharge vessel.
  • the metering volume is designed as a metering bore and dimensioned such that a drop of at least approximately spherical shape is formed.
  • the metering bore of the device according to the invention is formed with walls that are shaped or aligned with each other so that the at least approximately formed in spherical droplets touch only points or sections of the walls of the metering hole.
  • the formation of a sphere or spherical shape approximated compact structure is thus favored; At the same time, frictional forces are reduced during the subsequent release from the metering bore.
  • the metering bore may be formed as a recess having a cross-sectional shape substantially in the shape of an isosceles triangle.
  • the legs of the isosceles triangle may be arranged to extend in a straight line in a first embodiment, in an alternative embodiment, they may be based on the interior of the metering bore also convex or concave running.
  • an acceleration channel is provided between the dosing unit and the feed channel, which is aligned so that the drop is transferred by utilizing the gravitational force with an additional gravitational pulse into the feed channel.
  • the divided into a plurality of individual spheres mercury also accelerated by gravitational force hits the feed channel.
  • an additional gravitational pulse is used for the transport of the mercury within the feed channel in the direction of the discharge vessel.
  • Acceleration channel and feed channel can be arranged relative to each other so that the acceleration channel opens at an angle ⁇ 90 °, preferably ⁇ 60 °, more preferably ⁇ 50 ° in the feed channel. This will be an undisturbed Transport of mercury from the acceleration channel ensured in the feed channel.
  • the bypass channel opens into the feed channel and has one or more inlet openings facing away from the discharge vessel for charging the discharge vessel with a gas stream, in particular with inert filling gas.
  • the at least one, preferably two or more inflow openings can be closed with covers, the inflow openings being arranged off-axis relative to the feed channel.
  • inflow opening (s) and cover (s) can be opened or closed by rotating the inflow openings relative to the covers or the covers relative to the inflow openings.
  • the dosing unit comprises a tilting spoon unit, which is mounted coaxially to the feed channel and can be tilted between a dosing position and a release position, wherein the tilting with the rotation of the lamp holder takes place in that the center of gravity of the tipper unit by their geometric configuration and / or by an additional trim weight is well outside its axis of rotation about the feed channel.
  • a separate drive of Kipplöffelmaschine is not required; Rather, the change takes place between dosing and release position solely due to a triggered by gravity tilting movement with rotation of the lamp holders, which - as from US Pat. No. 2,699,279 respectively.
  • US 2,726,799 known per se - can be arranged equidistantly spaced in a predetermined number on a circular disk rotating in the production process.
  • the tilting spoon unit comprises a scooping arm with a spoon arranged on its end side.
  • the invention which ensures a particularly rapid tilting and thus the most reproducible dosage or release is the center of gravity of the tipper unit by a distance from the axis of rotation, which in about 5% to 25% of the total radial extent of the scoop including the spoon from the pivot point to its radially outermost point corresponds.
  • the spoon has, on its side facing away from the scoop arm, a roof tapering radially outwards, in particular to a ridge or a point, which allows mercury to run off the radial outside of the scoop favored. This ensures that mercury, which is located on the radially outer side of the spoon, not on the tipper unit along toward the inflow opening and / or yet to be explained gas passage bore, which is aligned in the release position with the metering bore, can flow.
  • the feed channel has an upstream first portion and a downstream second portion coaxially aligned with each other and at the same time rotatably supported against each other about their common axis.
  • the opening of the second section can preferably have an extension matched to the angle of the conical surface.
  • the first portion of the feed channel relative to the associated lamp holder is rotatably mounted, this is preferably achieved in that the first portion of the feed channel is rotatably mounted in a relative to the associated lamp holder fixed dosing sleeve.
  • the metering sleeve may comprise the metering bore according to the invention and further a bearing for the tilting spoon unit and for a central inner part, in which also the bypass channel and the inflow opening (s) are formed form.
  • the first portion of the feed channel is formed in a central inner part and rotatably mounted in a relative to the associated lamp holder fixed dosing sleeve.
  • the bypass channel may preferably be formed. This opens at its one end in the first section of the feed channel. At the opposite end it forms one or more inflow openings for the entry of a gas flow into the bypass channel.
  • the already mentioned covers for closing the inflow opening (s) are fixed relative to the fixed metering sleeve, preferably formed integrally with the metering sleeve.
  • this has the consequence that at the same time the inflow openings can be brought into coincidence with the covers or out of overlap with the covers with pivoting of the tipper unit relative to the fixed dosing.
  • this causes that in a preparation step, the inflow openings are not covered by the covers, so that flows past in the preparation step, the gas flow through the inflow through the bypass channel at the drop. Only in the filling step, the inflow openings are blocked by the covers by rotation of the metering sleeve relative to the inner part, so that in this way the bypass channel is blocked.
  • the gas stream is then passed over the metering volume and entrains the drop in the discharge vessel.
  • the tipper unit may be provided with an already mentioned gas passage bore which, in the release position of the tipper unit, is aligned with the metering bore so that the pressure of the inflation gas present at the gas passage bore effects the transport of the drop into the feed passage.
  • the gas passage bore can have deflection means, in particular a deviation sleeve, in order to keep excess mercury running off the dosing unit away from the gas passage bore in the respective dosing operation. In this way it is avoided that mercury passing along the tipper unit passes into the gas passage bore and thus, in addition to the exactly predosed droplet, further mercury likewise passes into the feed channel.
  • FIG. 1 is a longitudinal section through an embodiment of a lamp holder 11 according to the invention shown in a longitudinal section.
  • the lamp holder 11 initially comprises a housing 61 and a holder 43 attached to the housing, in which a discharge vessel 13 of a fluorescent lamp to be produced is held via a pumping tube 44 fused to the discharge vessel.
  • the holder 43 includes sealing means 45, which may be concretely formed as an annular sealing rubber.
  • the discharge vessel 13 is also supported at its opposite end by a holder in a lamp holder, which may be formed differently from the lamp holder 11 described here, but is known per se from the prior art.
  • the opposite lamp holder for example, evacuate the discharge vessel 13 via a second pump tube fused to the associated end or support a flushing with filling gas by means of a suction.
  • the relevant and illustrated lamp holder 11 comprises an inner space 42, which is in flow connection with the pumping tube 44 inserted via a feed line 19, in particular a rectilinear one, with the discharge vessel 13.
  • the feed channel 19 defines a central axis 50.
  • the interior 42 of the lamp holder 11 can be acted upon by a filling gas 46 with filling gas, which projects with an inlet 60 in the vicinity of the axis 50 of the substantially rotationally symmetrical about this axis 50 formed interior 42.
  • mercury lake 47 Within the interior 42 is still a supply of mercury, which forms a mercury lake 47.
  • the mirror of the mercury lake 47 is always sufficiently below the centrally arranged feed channel 19 and the inlet 60 of the filling gas 46.
  • a predetermined amount of mercury can be transferred from the mercury lake 47 into the central feed channel 19 via a metering unit 15 and then be introduced into the discharge vessel 13 with the aid of a filling gas stream.
  • the dosing unit 15 initially comprises a relative to the lamp holder 11 fixed dosing sleeve 38 which is aligned coaxially with the feed part 19 formed in an inner part 41 and encloses this.
  • the dosing sleeve 38 has an outer portion 48 with which it is rotatably connected to the housing 61 of the lamp holder 11 and an inner portion 49 on which a Kipplöffelmaschine 28 - as another element of the dosing unit 15 - to the through the (central) feed channel 19 defined axis 50 is rotatably mounted.
  • the inner part 41 of the dosing unit 15 simultaneously comprises a first section 33 of the feed channel 19 and a bypass channel 64 opening into this first section 33 of the feed channel 19.
  • the first section 33 of the feed channel 19 and the bypass channel 64 are thus rotatable relative to the housing of the lamp holder 11 the axle 50 stored.
  • the aforementioned second portion 34 is formed with respect to the housing of the lamp holder 11 as a separate component or integral with the metering sleeve 38 fixed.
  • the first portion 33 of the feed channel 19 for improved co-operation with the second portion 34 of the feed channel at its end facing the second portion 34 has a conical surface 35 formed in an associated opening 36 of the second portion 34 intervenes.
  • the second section 34 preferably forms at its opening 36 at the same time an extension 37 which is matched to the conical surface 35 of the first section 33, so that the occurrence of an uncontrolled gap as possible according to the prior art is avoided.
  • the tipper unit 28 is with rotation of the lamp holder 11, which will be explained below with reference to the explanation of Fig. 3 will be described in more detail, tiltable between a metering position (preparation step) and a release position (filling step).
  • the dosing position or the release position represent the end positions of a pivoting movement of the tipper unit 28 about the axis 50 of the feed channel 19 or the dosing sleeve 38, on which the tipper unit 28 is mounted as described above. These end positions are determined by the dimensioning of the slot 52 in the metering sleeve 38.
  • the lamp holder 11 is off along the line CC Fig. 1 , in Fig. 3 along the line AA Fig. 1 and in Fig. 4 off along the BB line Fig. 1 illustrated, in which representation, the tipper unit 28 is in its first position, namely the metering position (preparation step).
  • the tipper unit 28 comprises a relative to the axis 50 radially outer spoon 31 which is connected via a scooping 30 with a substantially annular inner portion 53.
  • spoon 31, scoop arm 30 and the substantially annular inner portion 53 are integrally formed.
  • the tipper unit 28 from the mercury lake 47 can absorb mercury and lead via a channel 54 within the scoop arm 30 to a metering volume, specifically to a metering bore 21 in the dosing sleeve 38.
  • a drain 55 is provided in the inner part 41 of the metering unit 15, said drain 55 of the inner part 41 in the metering position of the tilting spoon unit 28 being aligned with the metering bore 21.
  • the metering sleeve 38 has at its end facing away from the outer portion 48 still two covers 65, 66 which protrude beyond the inner portion 49 in the axial direction and form part of a still closer to be explained switching mechanism 63 for the guided into the discharge vessel 13 gas flow.
  • the covers 65, 66 have an inner surface 67 correspondingly rounded to the radius of the deflecting disk 57, 68, which slides as close to the outside of the deflector 57.
  • the covers 65, 66 which are formed as above the inner portion protruding Flunken, cover in the release position (filling step) diametrically formed on the shell side of the deflector 57 inlet openings 56 in the inner part, so that in the filling step, the gas flow through the bypass channel 64 is blocked.
  • dosing preparation step
  • the inner part 41 and dosing 38 are rotated against each other so that the covers 65, 66 do not cover the diametrically arranged inlet openings 26 in the deflector 57, so that the gas flow through the inlet openings 26 in the bypass channel 64 and from there via the first portion 33 of the feed channel 19 and the second portion 34 of the feed channel 19 can enter into the discharge vessel 13.
  • Bypass channel 64 and first portion 33 of the feed channel 19 may be formed as a continuous bore, which is closed at the end facing away from the discharge vessel by a cap 69, at the same time T-shaped side channels lead to the two diametrically opposed inlet openings 26.
  • the process controlled by the tilting bucket unit 28 will be explained again in context. If the tipper unit 28 after the metering bore 21 is filled with a predetermined amount of mercury, tilted into the release position (by tilting clockwise from the in the Fig. 2 . 3 and 4 Dosing position shown), passes a gas passage hole 39 in the annular inner portion 53 of the Kipplöffelmaschine 28 in an aligned with the metering bore 21 alignment. At the same time, the inner part 41 of the dosing unit 15 is entrained with this tilting of the tipper unit 28, so that an acceleration channel 25 within the inner part 41 also comes into alignment with the dosing bore 21.
  • the metering bore in the form of a triangular hole 18 in the present embodiment i. formed as a through hole with a triangular cross-sectional shape.
  • the triangle is identically defined in the present embodiment with each rectilinear legs, with different designs are conceivable.
  • One consideration here is that the mercury received in the metering bore 21 forms into a single drop 16 which has as few points of contact with walls 22 to 24 of the metering bore 21 as possible. If a maximum amount of mercury (depending on the lamp type) of 5 mg or 10 mg given by European regulations is used, the calculated diameter of the drop 16, which is as spherical as possible, is 0.89 mm or 1.12 mm.
  • the drop 16 of mercury formed in the metering bore can enter the acceleration channel 25 of the inner part 41.
  • the acceleration channel 25 within the inner part 41 is arranged at an angle of 45 ° in the present embodiment.
  • a 90 ° transition during transport of the drop 16 from the metering bore 21 into the feed channel 19 is avoided, which made the transport of mercury considerably more difficult in the prior art;
  • the here proposed orientation of the acceleration channel 25 of the droplets 16 is also accelerated by the gravity acting on them, without this pulse would go completely lost when entering the feed channel 19.
  • transitions 17 between the metering bore 21 and the acceleration channel 25 or between the acceleration channel 25 and the feed channel 19 or between the feed channel 19 and pump tube 44 are formed such that the drop 16 encounters no obstacles formed as steps in the transport direction.
  • the inner part 41 of the dosing unit 15 is provided at its end facing away from the pump tube 44 with a deflector 27 which is formed, an unwanted entry of auf furnishedden on the Kipplöffelmaschine 28 mercury in the pump tube 44 facing away from the inlet opening 26 of the feed channel 19.
  • the deflector 27 is formed here in the form of a groove 56.
  • this top side of the spoon 31 is designed as a roof 32 (cf. Fig. 1 ), ie with surfaces inclined to the horizontal, so that mercury can drain off.
  • deflecting means 40 are also provided on the gas passage bore 39 provided in the annular inner section 53 of the tilting-bucket unit 28, which in this case is concretely designed as a projection sleeve (cf. Fig. 3 ) may be formed. This also avoids that mercury draining from the tipper unit 28 can pass directly into the feed channel 19 without passing through the metering bore 21.
  • the Kipplöffelmaschine 28 is still equipped with an additional trim weight 29, which is secured by a fixing screw 58 on the scoop 30 in the vicinity of the spoon 31.
  • Fig. 9 is shown on the basis of a schematic diagram of the rotation of the pump / Meda machine, on which a plurality of lamp holders 11 may be attached.
  • the plurality of lamp holders 11 rotate about a central axis of rotation of the pumping / filling machine along a circular path.
  • the tipper unit 28 tilts periodically from the dosing position (preparation step) to the release position (filling step) and from the release position back into the dosing position.
  • the bucket 31 In positions A and B, the bucket 31 is completely immersed in the mercury lake 47 and enters the C position filled with mercury from the mercury lake 47 so that both spoon 31 and channel 54 are filled with mercury.
  • the tipper unit 28 In the positions D and E, the tipper unit 28 is still in the dosing position, in which case the mercury present in the channel 54 can enter the dosing bore 21.
  • the tipper unit 28 In the positions F and G, the tipper unit 28 is transferred by a rapid tilting into the release position, so that the formed in the metering bore 21 ball 16 of mercury via the acceleration channel 25 in the central feed channel 19 and from there into the discharge vessel 13 can occur.
  • a Geargaset which can be generated, for example, characterized in that on the opposite side of the discharge vessel in the discharge vessel such a negative pressure is generated that at the right moment, when the ball 16 arrives at the entrance of the pumping tube 44, a Geargarace from the Geartechnisch 46 in the feed passage 19 via the inflow opening 26 and the gas passage bore 39 is passed.
  • the tipper unit 28 tilts from the release position back to the dosing position.
  • Fig. 10 the dosing sleeve 38 is shown in a perspective view.
  • the metering sleeve 38 comprises the already mentioned outer portion 48 for insertion into the housing 61 of the lamp holder 11 and an inner diameter smaller dimensioned in the outer diameter inner portion 49.
  • the already mentioned slot 52 and formed with a triangular cross-section metering bore 21 is arranged
  • Fig. 11 shows the dosing sleeve 38 after Fig. 10 in a side view.
  • Fig. 12 is a side view and in Fig. 13 a perspective side view of the inner part 41 of the dosing unit 15 is shown.
  • the inner part 41 comprises the already mentioned first section 33 of the feed channel 19.
  • the inner part 41 For connection to the second section 34 of the feed channel 19, the inner part 41, the already mentioned conical surface 35 at its one end face on. At its opposite end forms the centrally continuous first portion 33 of the feed channel 19 also mentioned inflow opening 26, which is protected by the deflector 27 comprising groove 56 and deflector 57, as well as possible against inadvertent incoming mercury.
  • From lateral surface of the inner part 41 of the acceleration channel 25 extends in the direction of the first portion 33 of the feed channel 19 at 45 °.
  • a bore 59 for receiving the driving screw 51 (not shown here) and the drain 55 for the removal of Mercury when filling the metering bore 21 of the associated metering sleeve 38th
  • Fig. 14 and 15 is one of the presentation in the Fig. 1 and 5 a different sectional view to illustrate the operation of the switching mechanism 63, which includes the diametrically arranged inlet openings 26 in the inner part 41 and the covers 65, 66 which are integrally formed with the metering sleeve 38 includes.
  • the dosing position (preparation step) is illustrated. In this position, the switching mechanism 63 leads the gas flow over the inlet openings 26 and the bypass channel 64 past the metering bore 21 formed as a triangular hole 18.
  • Fig. 15 the arrangement is shown in the release position (filling step).
  • the covers 65, 66 close the inflow openings 26 of the bypass channel such that the gas flow is now guided via the metering volume or the metering bore 21 and thus entrains the drop 16 into the discharge vessel 13.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vacuum Packaging (AREA)
  • Treating Waste Gases (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
EP08100654A 2006-04-07 2006-04-07 Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge Withdrawn EP1912242A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06007445A EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP06007445A Division EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge

Publications (2)

Publication Number Publication Date
EP1912242A2 true EP1912242A2 (fr) 2008-04-16
EP1912242A3 EP1912242A3 (fr) 2008-08-27

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ID=36674966

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08100654A Withdrawn EP1912242A3 (fr) 2006-04-07 2006-04-07 Procédé et dispositif destinés à l'introduction d'une quantité précise mesurable de mercure dans une lampe à décharge
EP06007445A Not-in-force EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06007445A Not-in-force EP1843380B1 (fr) 2006-04-07 2006-04-07 Méthode et dispositif pour doser une quantité de mercure exactement contrôlable dans une lampe à décharge

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US (2) US7695336B2 (fr)
EP (2) EP1912242A3 (fr)
AT (1) ATE424620T1 (fr)
DE (1) DE502006003007D1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699279A (en) 1953-07-14 1955-01-11 Sylvania Electric Prod Mercury dispenser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433177A (en) * 1944-02-10 1947-12-23 Westinghouse Electric Corp Method and apparatus for introducing mercury into a discharge device by means of a capillary tube and a by-pass connection
US2391573A (en) * 1944-03-07 1945-12-25 Herzog Carl Method of and apparatus for making cold cathode fluorescent lamps or the like
US2726799A (en) * 1953-03-23 1955-12-13 Sylvania Electric Prod Apparatus for exhausting electric discharge devices
US2842290A (en) 1955-12-19 1958-07-08 Sylvania Electric Prod Mercury dispenser
JPS5543729A (en) * 1978-09-22 1980-03-27 Hitachi Ltd Mercury head
JPS6028098B2 (ja) * 1978-12-30 1985-07-03 松下電工株式会社 放電ランプの水銀封入方法
IT1277239B1 (it) 1995-11-23 1997-11-05 Getters Spa Dispositivo per l'emissione di mercurio,l'assorbimento di gas reattivi e la schermatura dell'elettrodo all'interno di lampade

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699279A (en) 1953-07-14 1955-01-11 Sylvania Electric Prod Mercury dispenser

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Publication number Publication date
EP1912242A3 (fr) 2008-08-27
DE502006003007D1 (de) 2009-04-16
ATE424620T1 (de) 2009-03-15
US20070281572A1 (en) 2007-12-06
EP1843380A1 (fr) 2007-10-10
US20100159791A1 (en) 2010-06-24
EP1843380B1 (fr) 2009-03-04
US7695336B2 (en) 2010-04-13

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