GB1282805A - High pressure mercury vapour discharge lamp with a metal halide additive - Google Patents

High pressure mercury vapour discharge lamp with a metal halide additive

Info

Publication number
GB1282805A
GB1282805A GB36983/70A GB3698370A GB1282805A GB 1282805 A GB1282805 A GB 1282805A GB 36983/70 A GB36983/70 A GB 36983/70A GB 3698370 A GB3698370 A GB 3698370A GB 1282805 A GB1282805 A GB 1282805A
Authority
GB
United Kingdom
Prior art keywords
thulium
iodide
mercury
rare
filling
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.)
Expired
Application number
GB36983/70A
Inventor
B Kuhl
A Dobrusskin
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
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of GB1282805A publication Critical patent/GB1282805A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/82—Lamps with high-pressure unconstricted discharge having a cold pressure > 400 Torr
    • H01J61/827—Metal halide arc lamps
    • 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

Landscapes

  • Discharge Lamp (AREA)

Abstract

1282805 Metal vapour lamps PATENTTBEUHAND-GES FUR ELEKTRISCHE GLUHLAMPEN mbH 30 July 1970 [8 Aug 1969] 36983/70 Heading HID A high pressure mercury vapour lamp includes in its filling a halide of a rare-earth metal, the ratio by weight of halogen to the rare-earth metal being between 2 and 10 and the lamp operating with a wall loading of 10-100 W./cm.<SP>2</SP> and an arc output of 100-1000 W./cm. The filling may comprise a rare gas and a starting gas, 0-25-11 mg./cm.<SP>3</SP> of the iodide of thulium or holmium, 0-0.2 mg./cm<SP>3</SP> of thallium iodide, and 2-10 mg./cm<SP>3</SP> of mercury, there being preferably up to 50% excess of the quantity of iodine equivalent to the rare earths. In one example the lamp envelope is coated internally with a protective coating of boron oxide and is provided with a reflective coating at each end. The volume of the envelope is 2-3 cm.<SP>3</SP> and the electrode spacing 12 mm. ; the filling comprises argon at 50 Torr, l'5mg. thulium, 4 mg. mercury and 7 mg. of mercury iodide which reacts in the discharge vessel with the thulium to form thulium iodide. With 500 W. input the efficiency is 90lm./W.; for 600 W. and 5 kW. lamps the efficiency is 110 and 130lm./W. respectively.
GB36983/70A 1969-08-08 1970-07-30 High pressure mercury vapour discharge lamp with a metal halide additive Expired GB1282805A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE691940539A DE1940539C3 (en) 1969-08-08 1969-08-08 Mercury vapor high pressure discharge lamp with the addition of rare earth halides

Publications (1)

Publication Number Publication Date
GB1282805A true GB1282805A (en) 1972-07-26

Family

ID=5742350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36983/70A Expired GB1282805A (en) 1969-08-08 1970-07-30 High pressure mercury vapour discharge lamp with a metal halide additive

Country Status (7)

Country Link
US (1) US3654506A (en)
AT (1) AT302481B (en)
BE (1) BE754499A (en)
DE (1) DE1940539C3 (en)
FR (1) FR2056778A5 (en)
GB (1) GB1282805A (en)
SE (1) SE375408B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000637A (en) * 1977-07-05 1979-01-10 Gen Electric High pressure metal vapor discharge lamps

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771009A (en) * 1971-12-27 1973-11-06 Gte Laboratories Inc Electrode discharge device with electrode-activating fill
DE2519377A1 (en) * 1975-04-30 1976-11-11 Patra Patent Treuhand MERCURY VAPOR HIGH PRESSURE DISCHARGE LAMP
HU172230B (en) * 1976-04-07 1978-07-28 Egyesuelt Izzolampa High-pressure discharge lamp with metallo-haloid additional material
US4161672A (en) * 1977-07-05 1979-07-17 General Electric Company High pressure metal vapor discharge lamps of improved efficacy
US4298813A (en) * 1978-10-23 1981-11-03 General Electric Company High intensity discharge lamps with uniform color
GB2072937B (en) * 1980-03-27 1984-05-02 Ilc Technology Inc High intensity discharge lamps
US4557700A (en) * 1983-06-09 1985-12-10 Gte Products Corporation Metal halide discharge lamp gas fill process to provide minimal color separation
US4528478A (en) * 1983-06-09 1985-07-09 Gte Products Corporation Single-ended metal halide discharge lamp with minimal color separation
DE3427280C2 (en) * 1984-07-24 1986-06-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Metal halide high pressure discharge lamp
DE3522654A1 (en) * 1985-01-21 1987-01-08 Paul Prof Dr Schulz Incandescent lamps having a high light output ration, and incandescent lamps with arc discharges
DE3506295A1 (en) * 1985-02-22 1986-08-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München COMPACT HIGH PRESSURE DISCHARGE LAMP
US4801846A (en) * 1986-12-19 1989-01-31 Gte Laboratories Incorporated Rare earth halide light source with enhanced red emission
NL191812C (en) * 1987-09-04 1996-08-02 Philips Electronics Nv High-pressure gas discharge lamp and luminaire fitted with that lamp.
DE3910878A1 (en) 1989-04-04 1990-10-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HIGH-PRESSURE DISCHARGE LAMP, DOUBLE-SIDED
JP2650463B2 (en) * 1989-05-31 1997-09-03 岩崎電気株式会社 Metal halide lamp
US5144201A (en) * 1990-02-23 1992-09-01 Welch Allyn, Inc. Low watt metal halide lamp
DE4030202A1 (en) * 1990-09-24 1992-03-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh METAL HALOGENIDE HIGH PRESSURE DISCHARGE LAMP
DE4115077A1 (en) * 1991-05-08 1992-11-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh HIGH PRESSURE DISCHARGE LAMP
US5708328A (en) * 1992-06-03 1998-01-13 General Electric Company Universal burn metal halide lamp
EP0769801B1 (en) * 1995-10-20 2002-01-02 Matsushita Electric Industrial Co., Ltd. Method of operating a metal halide lamp
EP0784334B1 (en) * 1996-01-11 2000-05-03 Osram Sylvania Inc. Metal halide lamp
US6005356A (en) * 1996-10-21 1999-12-21 Matsushita Electric Industrial Co., Ltd. Operating method and operating apparatus for a high pressure discharge lamp
US6225754B1 (en) 1996-10-21 2001-05-01 Matsushita Electric Industrial Co., Ltd. Operating method and operating apparatus for a high pressure discharge lamp
JPH10283993A (en) * 1997-04-03 1998-10-23 Matsushita Electron Corp Metal halide lamp
JP3233393B2 (en) * 1997-10-13 2001-11-26 松下電器産業株式会社 Metal halide lamp
DE102004019185A1 (en) * 2004-04-16 2005-11-10 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH High pressure discharge lamp
US7486026B2 (en) * 2006-11-09 2009-02-03 General Electric Company Discharge lamp with high color temperature
JP2010198977A (en) * 2009-02-26 2010-09-09 Seiko Epson Corp Discharge lamp, method for producing same, light source device, and projector
US9171712B2 (en) 2014-07-05 2015-10-27 National Institute Of Standards And Technology Lamp having a secondary halide that improves luminous efficiency

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3234421A (en) * 1961-01-23 1966-02-08 Gen Electric Metallic halide electric discharge lamps
US3259777A (en) * 1961-05-09 1966-07-05 Gen Electric Metal halide vapor discharge lamp with near molten tip electrodes
US3334261A (en) * 1965-10-24 1967-08-01 Sylvania Electric Prod High pressure discharge device having a fill including iodine mercury and at least one rare earth metal
US3452238A (en) * 1966-12-05 1969-06-24 Westinghouse Electric Corp Metal vapor discharge lamp
US3536947A (en) * 1967-03-23 1970-10-27 Tokyo Shibaura Electric Co High pressure discharge lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2000637A (en) * 1977-07-05 1979-01-10 Gen Electric High pressure metal vapor discharge lamps
GB2000637B (en) * 1977-07-05 1982-03-03 Gen Electric High pressure metal vapour discharge lamps of improved efficacy

Also Published As

Publication number Publication date
DE1940539B2 (en) 1978-06-08
FR2056778A5 (en) 1971-05-14
SE375408B (en) 1975-04-14
US3654506A (en) 1972-04-04
DE1940539A1 (en) 1971-02-25
BE754499A (en) 1971-01-18
AT302481B (en) 1972-10-10
DE1940539C3 (en) 1979-03-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years