GB1503966A - Low pressure mercury vapour discharge lamp with amalgam - Google Patents

Low pressure mercury vapour discharge lamp with amalgam

Info

Publication number
GB1503966A
GB1503966A GB2679775A GB2679775A GB1503966A GB 1503966 A GB1503966 A GB 1503966A GB 2679775 A GB2679775 A GB 2679775A GB 2679775 A GB2679775 A GB 2679775A GB 1503966 A GB1503966 A GB 1503966A
Authority
GB
United Kingdom
Prior art keywords
amalgam
tin
low pressure
pressure mercury
discharge lamp
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
GB2679775A
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 GB1503966A publication Critical patent/GB1503966A/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
    • H01J61/70—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

  • Discharge Lamp (AREA)

Abstract

1503966 Metal-vapour lamps PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 24 June 1975 [1 Aug 1974] 26797/75 Addition to 1471454 Heading H1D In a low pressure mercury vapour discharge lamp, e.g. a fluorescent lamp, containing the amalgam-forming metals indium, magnesium and tin, the magnesium component comprises 5-50 mol per cent and the tin component 1-40 mol per cent of the total amount of amalgam forming metal. The addition of tin, in the proportion specified, to the particular amalgam of the parent Specification 1,471,454 enables the amount of indium required to be reduced by 60%; thus as in total less amalgam-forming metals are required they may be provided as a coating on one stem only of the lamp. Preferably the molar ratio of amalgam-forming metals to mercury is in the range 20 : 1 to 1 : 1, and in an example given the amalgam has the composition Hg 1 In 4 Mg 0À67 Sn 0À45 .
GB2679775A 1974-08-01 1975-06-24 Low pressure mercury vapour discharge lamp with amalgam Expired GB1503966A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742437164 DE2437164A1 (en) 1974-08-01 1974-08-01 LOW PRESSURE MERCURY VAPOR DISCHARGE LAMP WITH AMALGAM

Publications (1)

Publication Number Publication Date
GB1503966A true GB1503966A (en) 1978-03-15

Family

ID=5922206

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2679775A Expired GB1503966A (en) 1974-08-01 1975-06-24 Low pressure mercury vapour discharge lamp with amalgam

Country Status (3)

Country Link
DE (1) DE2437164A1 (en)
GB (1) GB1503966A (en)
IT (1) IT1036423B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820746C3 (en) * 1978-05-12 1980-11-06 Kernforschungsanlage Juelich Gmbh, 5170 Juelich Mercury vapor low pressure discharge lamp

Also Published As

Publication number Publication date
IT1036423B (en) 1979-10-30
DE2437164A1 (en) 1976-02-12

Similar Documents

Publication Publication Date Title
ES8207385A1 (en) High-pressure mercury vapour discharge lamp.
GB1397034A (en) Discharge lamps
GB1333272A (en) Wall-stabilised high-pressure mercury vapour discharge lamps
ES423866A1 (en) High pressure, mercury vapor, metal halide discharge lamp
GB1272545A (en) High pressure mercury vapour discharge lamps
GB1503966A (en) Low pressure mercury vapour discharge lamp with amalgam
GB1042183A (en) Mercury vapour discharge lamps
GB1171738A (en) Fluorescent lamp or similar device containing an amalgam of tin-indium-mercury which controls the mercury vapor pressure during operation.
GB1484469A (en) Metal iodide vapour discharge lamp
GB966675A (en) Improvements in or relating to sodium-vapour discharge lamps
GB923890A (en) Improvements in electric low-pressure mercury vapour discharge lamps with high loading, more particularly fluorescent lamps
GB1008339A (en) Improvements in high-pressure mercury discharge lamps
AU498593B2 (en) Metal vapour discharge lamp
GB1522330A (en) Discharge lamp
GB1444023A (en) Electric discharge lamps
GB1471454A (en) Low pressure mercury vapour discharge lamp with amalgam
GB1217799A (en) High pressure electric discharge lamp
JPS5244083A (en) Fluorescent lamp of instant starting type
SU665349A1 (en) Light source
GB1360022A (en) Discharge lamps
GB993740A (en) Improvements in or relating to electric discharge lamps
GB1320590A (en) Gas-discharge lamps
GB966608A (en) Improvements in or relating to low pressure mercury vapour electric discharge lamps
GB1109135A (en) Improvements in and relating to super high pressure mercury vapour discharge lamps
JPS53144182A (en) Fluorescent lamp

Legal Events

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