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GB1280370A - Improvements in or relating to electric discharge lamps - Google Patents

Improvements in or relating to electric discharge lamps

Info

Publication number
GB1280370A
GB1280370A GB1011670A GB1011670A GB1280370A GB 1280370 A GB1280370 A GB 1280370A GB 1011670 A GB1011670 A GB 1011670A GB 1011670 A GB1011670 A GB 1011670A GB 1280370 A GB1280370 A GB 1280370A
Authority
GB
United Kingdom
Prior art keywords
relating
electric discharge
discharge lamps
lamp
vapour
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
GB1011670A
Inventor
Sydney Alfred Richard Rigden
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1011670A priority Critical patent/GB1280370A/en
Publication of GB1280370A publication Critical patent/GB1280370A/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
    • H01J61/02—Details
    • H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/22—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent vapour of an alkali metal

Landscapes

  • Discharge Lamp (AREA)

Abstract

1280370 Metal-vapour lamps GENERAL ELECTRIC CO Ltd 19 April 1971 [3 March 1970] 10116/70 Addition to 1192094 Heading H1D In a sodium vapour lamp as described in parent Specification having Cd and optionally Tl in the fitting, the Cd is replaced partially or completely by Zn and/or Pb. The lamp contains 15-1% Na to which may be added 85-99% Zn; 50% Zn and 35-49% Tl; or 50% Tl, 30% Cd and 5-19% Zn.
GB1011670A 1970-03-03 1970-03-03 Improvements in or relating to electric discharge lamps Expired GB1280370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1011670A GB1280370A (en) 1970-03-03 1970-03-03 Improvements in or relating to electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1011670A GB1280370A (en) 1970-03-03 1970-03-03 Improvements in or relating to electric discharge lamps

Publications (1)

Publication Number Publication Date
GB1280370A true GB1280370A (en) 1972-07-05

Family

ID=9961790

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1011670A Expired GB1280370A (en) 1970-03-03 1970-03-03 Improvements in or relating to electric discharge lamps

Country Status (1)

Country Link
GB (1) GB1280370A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005699A1 (en) * 1997-07-23 1999-02-04 Koninklijke Philips Electronics N.V. Mercury free metal halide lamp
EP1102307A1 (en) * 1999-11-15 2001-05-23 General Electric Company Sodium-xenon lamp with improved characteristics at end-of-life
US7414367B2 (en) 2003-04-16 2008-08-19 Koninklijke Philips Electronics, N.V. Mercury free high-pressure metal halide discharge lamp
EP2528083A2 (en) 2011-05-23 2012-11-28 Heraeus Noblelight GmbH Emitter with a metal component containing iron

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005699A1 (en) * 1997-07-23 1999-02-04 Koninklijke Philips Electronics N.V. Mercury free metal halide lamp
US6137230A (en) * 1997-07-23 2000-10-24 U.S. Philips Corporation Metal halide lamp
EP1102307A1 (en) * 1999-11-15 2001-05-23 General Electric Company Sodium-xenon lamp with improved characteristics at end-of-life
US7414367B2 (en) 2003-04-16 2008-08-19 Koninklijke Philips Electronics, N.V. Mercury free high-pressure metal halide discharge lamp
EP2528083A2 (en) 2011-05-23 2012-11-28 Heraeus Noblelight GmbH Emitter with a metal component containing iron
DE102011102970A1 (en) 2011-05-23 2012-11-29 Heraeus Noblelight Gmbh Emitter with a ferrous metal component

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Legal Events

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