WO2008009570A1 - Lampe à décharge comportant une cuve à décharge - Google Patents

Lampe à décharge comportant une cuve à décharge Download PDF

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Publication number
WO2008009570A1
WO2008009570A1 PCT/EP2007/056864 EP2007056864W WO2008009570A1 WO 2008009570 A1 WO2008009570 A1 WO 2008009570A1 EP 2007056864 W EP2007056864 W EP 2007056864W WO 2008009570 A1 WO2008009570 A1 WO 2008009570A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
discharge
discharge lamp
vessel
inaghg
Prior art date
Application number
PCT/EP2007/056864
Other languages
German (de)
English (en)
Inventor
Achim Hilscher
Thomas Noll
Siegfried Hien
Kirsten Fuchs
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Osram Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Priority to EP07787147A priority Critical patent/EP2044617A1/fr
Priority to JP2009519916A priority patent/JP2009544128A/ja
Priority to CN2007800275252A priority patent/CN101490802B/zh
Publication of WO2008009570A1 publication Critical patent/WO2008009570A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/28—Means for producing, introducing, or replenishing gas or vapour during operation of the lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/32—Special longitudinal shape, e.g. for advertising purposes
    • H01J61/327—"Compact"-lamps, i.e. lamps having a folded discharge path

Definitions

  • the invention relates to a discharge lamp with a discharge vessel, which comprises at least three vessel parts, which are connected with lugs to a continuous discharge space.
  • the discharge lamp has a first electrode, which extends at least partially into a first vessel part, and further comprises a second electrode, which extends at least partially into a second vessel part.
  • Discharge lamps are known in various design and application. Gas discharge lamps have found widespread use in recent years, especially in the form of compact fluorescent lamps. These discharge lamps usually have a discharge vessel which, for example, comprises a plurality of vessel parts in the form of curved tubes.
  • Hg source in the discharge vessel, from which a suitable amount of Hg evaporates during operation and substantially contributes to UV generation in the discharge vessel through the corresponding Hg lines.
  • Hg source comprises in principle two functions, namely the one of a Hg donor. It is a material or a body in which the Hg is contained, for example, liquid Hg itself, or an amalgam.
  • steam pressure regulating Hg elements such as work amalgams.
  • the amalgam has the functions of introducing the mercury into the lamp and controlling the vapor pressure.
  • two amalgam bodies are used, one of which has the function to bring the mercury in the lamp and the other has the function to regulate the vapor pressure.
  • a vapor pressure regulating element such as an amalgam is needed.
  • the temperature of the vapor pressure regulating element controls the vapor pressure of the Hg in the discharge.
  • discharge lamps are known from the applicant, in which such a pumping stem or such Pumprohr with a BilnHg amalgam contained therein on a discharge tube of the discharge vessel is arranged, in which no electrode coil is arranged.
  • discharge lamps are known in which a pumping tube is arranged on a discharge tube of the discharge vessel, in which also an electrode coil is arranged. These lamps have a PbBiSnHg amalgam or an InSnPbHg amalgam in the pump tubes. In the known arrangements and configurations of the discharge lamps and the amalgams used, the luminous flux-temperature behavior of the discharge lamp is not completely satisfactory. Presentation of the invention
  • a discharge lamp according to the invention comprises a discharge vessel which has at least three vessel parts.
  • the vessel parts are connected to each other with attachment webs in such a way that they represent the discharge vessel in their entirety and form a common contiguous discharge space.
  • a first electrode of the discharge lamp extends at least partially into a first vessel part, and a second electrode extends at least partially into a second vessel part.
  • the discharge lamp further comprises a tube piece which is connected to a third vessel part, wherein in the tube piece an InAgHg source or an InAgHg amalgam is contained.
  • the tube piece is designed as a pump tube.
  • the pump tube is suitable for pumping and filling the discharge lamp during manufacture. An additional attachment of such a tube piece is therefore not required.
  • the tube piece can thus be multifunctional in various production and operating phases of the discharge lamp - A -
  • InAgHg amalgam is much less expensive in such a design of a tube piece.
  • InAgHg amalgam it is not necessary to mount it on a special amalgam support.
  • the discharge vessel comprises at least three elongate tube parts arranged substantially parallel to one another, wherein the tube piece is arranged on that tube part which is connected to the two further tube parts by means of a respective attachment web.
  • the InAgHg source is therefore also arranged in a pipe part, which is formed centrally in the discharge vessel. The advantageous for the operation of the discharge lamp central arrangement of this source can be made possible.
  • At least one of the vessel parts are formed as curved tube units.
  • a pipe unit is curved so that it has a U-shape.
  • the U-shape is preferably designed such that each tube unit comprises at least two tube parts oriented essentially parallel to one another.
  • the tube piece is preferably arranged on that tube unit, which is connected to a respective attachment web with the other two tube units.
  • the tube unit in which the InAgHg source is attached to the tube piece is thus preferably located in the center of the discharge vessel.
  • the InAgHg amalgam is preferably formed without further additional elements or atomic additives. Since the InAgHg-amalgam prepares no handling difficulties, and always has sufficient viscosity, a loading of, for example, Ni or Te is not required.
  • the Ag content of the InAgHg compound is preferably between three and six, in particular 4.
  • the Hg content of the InAgHg compound is advantageously between 6 and 12, in particular 10.
  • a particularly advantageous A-malgam composition is therefore represented by the composition InAg 4 Hg -I 0 formed.
  • the discharge lamp may be formed with an integrated ballast. It can also be provided that the discharge lamp is designed without an integrated ballast and is electrically contacted only with an external electronic ballast for operating the discharge lamp.
  • the discharge lamp is preferably designed as a compact fluorescent lamp.
  • Fig. 1 is a side view of a discharge lamp according to the invention
  • FIG. 2 shows a plan view of the discharge lamp according to FIG. 1; FIG. and
  • FIG. 3 is an enlarged view of a partial section in Fig. 1st
  • FIG. 1 shows a side view of a compact fluorescent lamp 1, which comprises a discharge vessel 2.
  • the discharge vessel 2 is connected to a housing 3, in which a ballast, not shown, is arranged.
  • the compact fluorescent lamp 1 is in the embodiment with an integrated ballast formed. It can also be provided that the compact fluorescent lamp 1 can be operated with a separate, external ballast. It can then be provided that, for example, four pins protrude from a base 4 of the lamp, which are provided for contacting the ballast. It can also be provided that the lamp are designed with these four contact pins for a throttle-starter operation. It can also be provided that only two contact pins protrude from the base 4 of the lamp, as a result of which the lamp is designed for operation in a choke-starter circuit with an integrated glow starter.
  • the compact fluorescent lamp 1 comprises the base 4, which adjoins the housing 3. Furthermore, electrical contact pins 5a and 5b are arranged on the base 4 in a known manner.
  • the discharge vessel 2 comprises three vessel parts, which are designed as curved tube units 21, 22 and 23.
  • Each tube unit 21 to 23 is designed in the embodiment U-shaped.
  • the pipe unit 21 is curved so that it comprises two substantially parallel to each other formed pipe parts 21 a and 21 b.
  • the second tube unit 22 is curved so as to have two substantially parallel, elongated tube portions 22a and 22b ( Figure 2).
  • the third pipe unit 23 is also formed to have two substantially parallel, elongated pipe parts 23a (FIG. 2) and 23b.
  • the tube units 21 to 23 are arranged so that the tube parts 21 a, 21 b, 22 a, 22 b, 23 a and 23 b are positioned substantially parallel to each other.
  • the orientation of the U-shaped tube units 21 to 23 is arranged so that the free ends extend into the housing 3.
  • the tube units 21 to 23 are connected to each other by two attachment webs 24 and 25 (FIG.
  • the attachment of these lugs 24 and 25 is designed so that they are located in the embodiment within the housing 2.
  • the diameter of these extension webs 24 and 25 is substantially smaller than the diameter of the pipe parts 21 a, 21 b, 22 a, 22 b, 23 a and 23 b of the pipe units 21 to 23.
  • Exemplary and conventional diameters for the attachment webs 24 and 25 are about 4 mm
  • Usual and known exemplary diameter for the pipe parts 21 a to 23 b are about 12 mm. The values mentioned are of course only exemplary and can vary in many ways.
  • the compact fluorescent lamp 1 further includes a first electrode
  • the first electrode 6 in the form of an electrode coil and a second electrode 7, which is e- b concerns formed as an electrode coil.
  • the first electrode 6 extends within the housing 3 in the front or free end of the tubular member 21 a.
  • the second electrode 7 is likewise arranged within the housing 3 in such a way that it extends at least in regions into the tube part 22a of the tube unit 22.
  • the two electrodes 6 and 7 are thus arranged in different vessel parts or tube units 21 and 22.
  • the electrodes 6 and 7 are merely exemplary. It can also be provided that the electrodes 6 and 7 are arranged in the respective tube parts 21 a and 22 a such that the coils are at least partially outside the housing 3.
  • the compact fluorescent lamp 1 comprises a tube piece designed as a pump tube 8, which is designed to receive an InAgHg source 9 (FIG. 3).
  • the pump tube 8 is multifunctional usable and used in the manufacture of the lamp for pumping and filling the compact fluorescent lamp 1 and further for receiving this InAgHg amalgam.
  • this pump tube 8 is disposed within the housing 3 and extends partially into the third vessel part and the third tube unit 23.
  • the pump tube 8 is arranged on the tube part 23b of the third tube unit 23.
  • the exhaust tube 8 extends at the free front end of the tubular member 23b in this.
  • the pump tube 8 is arranged approximately in the middle of the entire discharge vessel 2 and thus the discharge path. It can also be provided that the pump tube 8 with the InAgHg source 9 is arranged at the corresponding point of the tube part 23a. Likewise, however, it can also be provided that this pump tube 8 with the InAgHg source 9 is arranged at the corresponding position of the tube part 21b or the tube part 22b. It is only important that a specially provided InAgHg source 9 is arranged in a vessel part of the discharge vessel 2, in which no electrode 6 or 7 is positioned.
  • Fig. 3 is an enlarged partial section I of Fig. 1 is shown.
  • the pump tube 8 is arranged so that it extends in regions in the discharge space 2a and thus at least partially disposed within the tubular portion 23b.
  • the InAgHg source 9 is spherical.
  • the amalgam composition is formed in the embodiment as InAg 4 Hg-I 0 and positioned in the front region of the pump tube 8.
  • the front end of the pump tube 8 is curved and has, on the one hand, a tapered region 81 and a subsequent widened region 82. In this widened region 82, an outlet opening 83 is provided. educated.
  • a retainer body in the form of a stainless steel ball 10 is introduced between the spherical body of the InAgHg source 9 and the front end 82 of the pump tube 8.
  • the operating temperature of the amalgam body or of the InAgHg source 9 can be set as a function of the ambient temperature via the height of this stainless steel ball 10 and thus its diameter.
  • the pump tube 8 projects into the discharge space 2a with a depth t of about 2.5 mm.
  • the stainless steel ball 10 has a diameter of about 2 mm in the exemplary embodiment.
  • the temperature of the InAgHg source 9 accommodated in the pump tube 8 depends strongly on the ambient temperature in the ballast housing 3, which in turn depends on the external ambient temperature, the operating time and also the installation position of the compact fluorescent lamp 1.
  • the pump tube 8 is arranged in the front or free end 231 b of the tube part 23 b.
  • the InAgHg amalgam has a much broader temperature range over which the Hg vapor pressure over the amalgam is optimally range above the light generation in fluorescent lamps than is the case with other amalgams such as BilnHg amalgam.
  • the temperature range with optimum Hg vapor pressure over this InAgHg amalgam ranges from about 105 ° C to about 155 ° C.
  • this InAgHg amalgam is also lead-free and in this context has a distinct advantage over the amalgams PbBiSnHg or InSnPbHg.
  • the InAgHg amalgam In contrast to the BilnHg amalgam, which has a Hg concentration of 3% by weight, the InAgHg amalgam has an Hg concentration of the order of 10% by weight.
  • This has the advantage that the absolute weight of the amalgam body when using InAgHg is significantly lower. ger is than another amalgam, for example BiInHg.
  • the advantage lies in a lower material usage and in the significantly lower total weight of the amalgam body or the InAgHg source.
  • only an InAgHg source 9 or such an amalgam ball is sufficient, which is also lighter and smaller than a BilnHg ball. Due to the lower weight of this InAgHg ball and the risk of dripping, past the retaining body or the stainless steel ball 10, significantly reduced.

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

L'invention concerne une lampe à décharge comportant une cuve à décharge (2) comprenant au moins trois parties de cuve (21, 22, 23) connectées au moyen d'entretoises (24, 25) sous forme de chambre à décharge assemblée (2a), la lampe à décharge comportant également une première électrode (6) s'étendant au moins partiellement dans une première partie de cuve (21, 22, 23), et une deuxième électrode (7) s'étendant au moins partiellement dans une deuxième partie de cuve (21, 22, 23), une source de InAgHg (9) étant contenue dans une pièce de tube (8) connectée à une troisième partie de cuve (21, 22, 23).
PCT/EP2007/056864 2006-07-20 2007-07-06 Lampe à décharge comportant une cuve à décharge WO2008009570A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07787147A EP2044617A1 (fr) 2006-07-20 2007-07-06 Lampe à décharge comportant une cuve à décharge
JP2009519916A JP2009544128A (ja) 2006-07-20 2007-07-06 放電容器を備えた放電ランプ
CN2007800275252A CN101490802B (zh) 2006-07-20 2007-07-06 带有放电容器的放电灯

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006033674.7 2006-07-20
DE200610033674 DE102006033674A1 (de) 2006-07-20 2006-07-20 Entladungslampe mit einem Entladungsgefäß

Publications (1)

Publication Number Publication Date
WO2008009570A1 true WO2008009570A1 (fr) 2008-01-24

Family

ID=38656691

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/056864 WO2008009570A1 (fr) 2006-07-20 2007-07-06 Lampe à décharge comportant une cuve à décharge

Country Status (5)

Country Link
EP (1) EP2044617A1 (fr)
JP (1) JP2009544128A (fr)
CN (1) CN101490802B (fr)
DE (1) DE102006033674A1 (fr)
WO (1) WO2008009570A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146945A2 (fr) * 2008-06-05 2009-12-10 Wedeco Ag Lampe à amalgame de mercure avec chemin de décharge coudé

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977349A (en) * 1986-05-29 1990-12-11 Kabushiki Kaisha Toshiba Low-pressure mercury vapor discharge lamp
EP0809276A1 (fr) * 1996-05-22 1997-11-26 Matsushita Electronics Corporation Lampe à décharge remplie de vapeur de mercure à basse pression
US5798618A (en) * 1993-09-30 1998-08-25 Diablo Research Corporation Electrodeless discharge lamp with control amalgam in the plasma
EP1176627A2 (fr) * 2000-07-28 2002-01-30 Toshiba Lighting & Technology Corporation Tube fluorescent, tube fluorescent à autostabilisation, et appareil d'éclairage
WO2002097858A1 (fr) * 2001-05-25 2002-12-05 Advanced Lighting Technologies, Inc. Materiaux et procedes pour commander la pression de la vapeur de mercure dans des dispositifs a decharge
US20060006784A1 (en) * 2003-02-17 2006-01-12 Toshiba Lighting & Technology Corporation Fluorescent lamp, bulb-shaped fluorescent lamp, and lighting apparatus
US20060087258A1 (en) * 2003-03-24 2006-04-27 Toshiba Lighting & Technology Corp. Self-ballasted fluorescent lamp and luminaire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6366841A (ja) * 1986-09-09 1988-03-25 Toshiba Corp 低圧水銀蒸気放電灯
CN1090811C (zh) * 1996-06-05 2002-09-11 松下电器产业株式会社 充有低压汞蒸汽的放电灯
JP2001283774A (ja) * 2000-03-30 2001-10-12 Toshiba Lighting & Technology Corp 蛍光ランプ
JP3747754B2 (ja) * 2000-08-31 2006-02-22 東芝ライテック株式会社 低圧水銀蒸気放電ランプおよび照明装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977349A (en) * 1986-05-29 1990-12-11 Kabushiki Kaisha Toshiba Low-pressure mercury vapor discharge lamp
US5798618A (en) * 1993-09-30 1998-08-25 Diablo Research Corporation Electrodeless discharge lamp with control amalgam in the plasma
EP0809276A1 (fr) * 1996-05-22 1997-11-26 Matsushita Electronics Corporation Lampe à décharge remplie de vapeur de mercure à basse pression
EP1176627A2 (fr) * 2000-07-28 2002-01-30 Toshiba Lighting & Technology Corporation Tube fluorescent, tube fluorescent à autostabilisation, et appareil d'éclairage
WO2002097858A1 (fr) * 2001-05-25 2002-12-05 Advanced Lighting Technologies, Inc. Materiaux et procedes pour commander la pression de la vapeur de mercure dans des dispositifs a decharge
US20060006784A1 (en) * 2003-02-17 2006-01-12 Toshiba Lighting & Technology Corporation Fluorescent lamp, bulb-shaped fluorescent lamp, and lighting apparatus
US20060087258A1 (en) * 2003-03-24 2006-04-27 Toshiba Lighting & Technology Corp. Self-ballasted fluorescent lamp and luminaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146945A2 (fr) * 2008-06-05 2009-12-10 Wedeco Ag Lampe à amalgame de mercure avec chemin de décharge coudé
DE102008026904A1 (de) * 2008-06-05 2009-12-31 Wedeco Ag Quecksilberamalgamstrahler mit gefaltetem Entladungsweg
WO2009146945A3 (fr) * 2008-06-05 2010-03-11 Itt Manufacturing Enterprises, Inc. Lampe à amalgame de mercure avec chemin de décharge coudé

Also Published As

Publication number Publication date
CN101490802B (zh) 2011-06-29
DE102006033674A1 (de) 2008-01-24
JP2009544128A (ja) 2009-12-10
EP2044617A1 (fr) 2009-04-08
CN101490802A (zh) 2009-07-22

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