GB1192999A - Method of Applying Amalgam-forming Metal in Low-Pressure Mercury Discharge Lamps - Google Patents

Method of Applying Amalgam-forming Metal in Low-Pressure Mercury Discharge Lamps

Info

Publication number
GB1192999A
GB1192999A GB2182068A GB2182068A GB1192999A GB 1192999 A GB1192999 A GB 1192999A GB 2182068 A GB2182068 A GB 2182068A GB 2182068 A GB2182068 A GB 2182068A GB 1192999 A GB1192999 A GB 1192999A
Authority
GB
United Kingdom
Prior art keywords
amalgam
forming metal
lamp
metal
low
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
GB2182068A
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 GB1192999A publication Critical patent/GB1192999A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

1,192,999. Metal-vapour lamps. PATENTTREUHAND-GES. FUR ELEKTRISCHE GLœHLAMPEN m.b.H. 8 May, 1968 [11 May, 1967], No. 21820/68. Heading H1D. Amalgam-forming metal 11, e.g. In, is sprayed in the liquid state in finely divided form on to at least one electrode base 3 of a L.P.M.V. fluorescent lamp. The lamp envelope 1 is bent to U-shape (Fig. 2, not shown) after sealing. The metal 11 may become molten during lamp operation, but does not drip owing to the small quantity used. The coiled electrode 8 is surrounded by an annular shield 9 of sheet iron carrying a strip 10 of amalgam-forming metal, e.g. Sn, In or Pb, to facilitate starting. The main amalgam 11 determines the mercury vapour pressure during operation of the lamp.
GB2182068A 1967-05-11 1968-05-08 Method of Applying Amalgam-forming Metal in Low-Pressure Mercury Discharge Lamps Expired GB1192999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1967P0042121 DE1589290B2 (en) 1967-05-11 1967-05-11 METHOD OF APPLICATION OF AMALGAM FORMING METAL IN ELECTRICALLY AND / OR THERMALLY HIGH LOAD MERCURY LOW PRESSURE DISCHARGE LAMPS

Publications (1)

Publication Number Publication Date
GB1192999A true GB1192999A (en) 1970-05-28

Family

ID=7378338

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2182068A Expired GB1192999A (en) 1967-05-11 1968-05-08 Method of Applying Amalgam-forming Metal in Low-Pressure Mercury Discharge Lamps

Country Status (5)

Country Link
BE (1) BE715002A (en)
DE (1) DE1589290B2 (en)
FR (1) FR1564339A (en)
GB (1) GB1192999A (en)
SE (1) SE335577B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581557A (en) * 1979-01-02 1986-04-08 General Electric Company Stabilized high intensity discharge lamp
EP0769805A2 (en) * 1995-10-18 1997-04-23 General Electric Company Electrodeless fluorescent lamp
US5789855A (en) * 1995-10-18 1998-08-04 General Electric Company Amalgam Positioning in an electrodeless fluorescent lamp
WO2013070640A1 (en) * 2011-11-09 2013-05-16 General Electric Company Auxiliary amalgam for a low pressure discharge lamp
US8633645B2 (en) 2011-11-09 2014-01-21 General Electric Company Fluorescent lamp assembly with improved run-up

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7612881A (en) * 1976-11-19 1978-05-23 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
NL8401030A (en) * 1984-04-02 1985-11-01 Philips Nv LOW-PRESSURE MERCURY DISCHARGE LAMP.
DE4303624C2 (en) * 1993-02-09 1999-03-04 Gerhard Dr Ing Egberts Radiation source for the generation of vacuum UV radiation
EP1123559A1 (en) * 1999-08-19 2001-08-16 Koninklijke Philips Electronics N.V. Low-pressure mercury vapor discharge lamp

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4581557A (en) * 1979-01-02 1986-04-08 General Electric Company Stabilized high intensity discharge lamp
EP0769805A2 (en) * 1995-10-18 1997-04-23 General Electric Company Electrodeless fluorescent lamp
US5767617A (en) * 1995-10-18 1998-06-16 General Electric Company Electrodeless fluorescent lamp having a reduced run-up time
US5789855A (en) * 1995-10-18 1998-08-04 General Electric Company Amalgam Positioning in an electrodeless fluorescent lamp
EP0769805A3 (en) * 1995-10-18 1999-02-03 General Electric Company Electrodeless fluorescent lamp
WO2013070640A1 (en) * 2011-11-09 2013-05-16 General Electric Company Auxiliary amalgam for a low pressure discharge lamp
US8633645B2 (en) 2011-11-09 2014-01-21 General Electric Company Fluorescent lamp assembly with improved run-up

Also Published As

Publication number Publication date
BE715002A (en) 1968-09-30
FR1564339A (en) 1969-04-18
SE335577B (en) 1971-06-01
DE1589290A1 (en) 1970-03-05
DE1589290B2 (en) 1976-05-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee