EP2169703A2 - Lampe à décharge haute tension - Google Patents

Lampe à décharge haute tension Download PDF

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Publication number
EP2169703A2
EP2169703A2 EP09168934A EP09168934A EP2169703A2 EP 2169703 A2 EP2169703 A2 EP 2169703A2 EP 09168934 A EP09168934 A EP 09168934A EP 09168934 A EP09168934 A EP 09168934A EP 2169703 A2 EP2169703 A2 EP 2169703A2
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
pressure discharge
lamp according
thallium
tlj
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Withdrawn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
EP09168934A
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German (de)
English (en)
Other versions
EP2169703A3 (fr
Inventor
Andreas Genz
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.)
Osram GmbH
Original Assignee
Osram GmbH
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 GmbH filed Critical Osram GmbH
Publication of EP2169703A2 publication Critical patent/EP2169703A2/fr
Publication of EP2169703A3 publication Critical patent/EP2169703A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125—Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component

Definitions

  • the invention relates to a high-pressure discharge lamp according to the preamble of claim 1.
  • Such lamps are in particular high-pressure discharge lamps with a ceramic discharge vessel or quartz glass vessel for general lighting.
  • the US Pat. No. 4,992,700 discloses a high pressure discharge lamp using a metal halide fill.
  • the high-pressure discharge lamp is used to generate green radiation and contains bromide or iodide of thallium as the metal halide.
  • the object of the present invention is to provide a high-pressure discharge lamp with metal halide filling, which achieves the best possible maintenance.
  • Colored lamps are gaining increasing market significance as an effect light in architectural lighting.
  • the invention relates to green emitting metal halide lamps. Besides the good maintenance there are basically even more goals: 1. high radiation power in the countryside. 2. High color saturation.
  • TlJ The fillings used to date for green emission usually use TlJ.
  • TlBr was also investigated but never used.
  • the use of a mixture has never been seriously considered, as it promised no additional benefits, but is more expensive to produce since the mixture must be controlled and adjusted.
  • a filling of a mixture TlBr + TlJ shows a better maintenance than the previous filling of TlJ on the one hand and pure TlBr and a mixture of TlJ + TlBr + TlCl on the other hand.
  • the maintenance ie the constancy of the power radiated in the green spectral range is thereby improved, without deteriorating the other important variable, the color saturation.
  • the proportion of TlJ is at least 25 wt .-% and at most 75 wt .-%.
  • the filling amount of the total Tl halide is between 0.1 and 1 mg per ml discharge volume. Particularly preferred is a value between 0.2 and 1.0 mg / ml for lamps in the power range from 35 to 150W and a value between 0.1 and 0.6 mg / ml for lamps from 175 to 1000W.
  • the inventive concept is particularly suitable for small and medium power lamps in the range 15 to 1000 W.
  • FIG. 1a schematically shows a metal halide lamp 1. It consists of a discharge vessel 2 made of quartz glass, in which two electrodes 3 are inserted. The discharge vessel has a central part 5 and two ends 4. At the ends sit two bruises. 6
  • the discharge vessel 2 is surrounded by an outer bulb 7.
  • the discharge vessel 2 is supported in the outer bulb by means of a rack including a short and long power supply 11a and 11b.
  • the discharge vessel contains a filling which typically comprises Hg (3 to 30 mg / cm 3 ) and 0.1 to 1 mg / cm 3 halide of thallium.
  • a filling typically comprises Hg (3 to 30 mg / cm 3 ) and 0.1 to 1 mg / cm 3 halide of thallium.
  • argon is used under a pressure of 30 to 300 hPa cold. As a result, a green-emitting metal halide lamp is realized.
  • FIG. 1b shows a second embodiment with a discharge vessel 2 made of quartz glass, on which an integrated outer bulb 10 is attached without a frame is needed.
  • the filling is similar to the embodiment of the FIG. 1a ,
  • FIG. 2 shows a diagram in which the maintenance of different fillings of Tl-halide for a 250 W lamp were compared. It shows that pure TlBr (curve b) and pure TlJ (curve a) show by far the worst behavior.
  • the radiation power in the green spectral range decreases from the reference point after 100 hours up to 6000 hours to a maximum of 80% when using mixtures.
  • mixtures of TlJ and TlBr show significantly better values if the proportion of TlJ lies between 25 (curve d) and 75% by weight (curve c).
  • Outstanding values are achieved when the proportion of TII is in the range of 40 to 60% by weight. Shown is the behavior for 60% by weight (curve e) and 50% by weight (curve f).
  • FIG. 3 shows a diagram for 400 W lamps, in which the maintenance of a mixture 55 wt .-% TlJ with 45 wt .-% TlBr (curve a) is compared with pure TlJ (curve b) and TlBr (curve c) on the one hand, and on the other hand, with a triple mixture (curve d) of proportions of TlJ (70 wt .-%), TlBr (20 wt .-%) and TlCl (10 wt .-%).
  • TlJ 70 wt .-%
  • TlBr 20 wt .-%
  • TlCl 10 wt .-%
  • Table 1 shows the photometric data of various metal halide lamps with quartz glass flask according to FIG. 1a and 1 b.
  • Tab. 1 Type Figure. 1b 70W Fig. 1b 150W Fig. 1a 250W Fig. 1b -400W MH filling amount 55% by weight TlJ + 45% by weight TlBr 0.3 mg 0.8 mg 0.9 mg 1.5 mg volume 0.7 ml 1.8 ml 5.2 ml 8.0 ml Saturation at 100h 38% 43% 53% 48% Luminous flux at 100h 5 200 lm 10 500 lm 23 000 lm 34 000 lm Radiation power in the green 510 to 540 nm at 100h 5 W 10W 29W 41W Maintenance after 6000h 80% 80% 90% 90% Hg amount in mg 8.0 17.0 29.0 62.5

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  • Discharge Lamp (AREA)
EP09168934A 2008-09-29 2009-08-28 Lampe à décharge haute tension Withdrawn EP2169703A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008049476A DE102008049476A1 (de) 2008-09-29 2008-09-29 Hochdruckentladungslampe

Publications (2)

Publication Number Publication Date
EP2169703A2 true EP2169703A2 (fr) 2010-03-31
EP2169703A3 EP2169703A3 (fr) 2011-02-09

Family

ID=41650206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168934A Withdrawn EP2169703A3 (fr) 2008-09-29 2009-08-28 Lampe à décharge haute tension

Country Status (5)

Country Link
US (1) US20100079068A1 (fr)
EP (1) EP2169703A3 (fr)
JP (1) JP2010086962A (fr)
CN (1) CN101714494A (fr)
DE (1) DE102008049476A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005035191A1 (de) * 2005-07-27 2007-02-01 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Niederdruckgasentladungslampe mit neuer Gasfüllung
CN105655229A (zh) * 2014-11-12 2016-06-08 广东雪莱特光电科技股份有限公司 低功率轨道机车用高强度气体放电氙气金卤灯
CN105679640B (zh) * 2014-11-18 2018-04-10 广东雪莱特光电科技股份有限公司 发绿光的氙气灯

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992700A (en) 1989-03-10 1991-02-12 General Electric Company Reprographic metal halide lamps having high blue emission

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5225484A (en) * 1975-08-21 1977-02-25 Mitsubishi Electric Corp Mixing light illuminating method
NL7711134A (nl) * 1976-10-19 1978-04-21 Gen Electric Co Ltd Elektrische hoge druk ontladingslamp.
DE2655167C2 (de) * 1976-12-06 1986-12-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe mit Metallhalogeniden
US4298813A (en) * 1978-10-23 1981-11-03 General Electric Company High intensity discharge lamps with uniform color
US4766348A (en) * 1983-06-09 1988-08-23 Gte Products Corporation Single-ended metal halogen lamp and fabrication process employing ionization potential selection of additive gases
DE8805183U1 (de) * 1988-04-19 1988-07-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Hochdruckentladungslampe
US5256940A (en) * 1989-11-08 1993-10-26 Matsushita Electric Works, Ltd. High intensity discharge lamp device
US5144201A (en) * 1990-02-23 1992-09-01 Welch Allyn, Inc. Low watt metal halide lamp
US5225738A (en) * 1990-12-14 1993-07-06 North American Philips Corporation Metal halide lamp with improved lumen output and color rendition
EP0634780B1 (fr) * 1993-07-13 1997-01-08 Matsushita Electric Industrial Co., Ltd. Lampe à décharge à halogénure métallique, appareil optique d'illumination et système de présentation d'image
DE59805403D1 (de) * 1997-04-21 2002-10-10 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Metallhalogenid-entladungslampe mit langer lebensdauer
US20030141818A1 (en) * 2002-01-25 2003-07-31 Kelly Timothy Lee Metal halide lamp with enhanced red emission
JP3952895B2 (ja) * 2002-07-30 2007-08-01 ソニー株式会社 光源装置及び投射型表示装置
JP2007513469A (ja) * 2003-11-11 2007-05-24 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 水銀を含まないガスが充填された低圧蒸気放電ランプ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4992700A (en) 1989-03-10 1991-02-12 General Electric Company Reprographic metal halide lamps having high blue emission

Also Published As

Publication number Publication date
CN101714494A (zh) 2010-05-26
JP2010086962A (ja) 2010-04-15
DE102008049476A1 (de) 2010-04-01
US20100079068A1 (en) 2010-04-01
EP2169703A3 (fr) 2011-02-09

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