GB1267426A - Improvements in electric incandescent lamps - Google Patents

Improvements in electric incandescent lamps

Info

Publication number
GB1267426A
GB1267426A GB22391/69A GB2239169A GB1267426A GB 1267426 A GB1267426 A GB 1267426A GB 22391/69 A GB22391/69 A GB 22391/69A GB 2239169 A GB2239169 A GB 2239169A GB 1267426 A GB1267426 A GB 1267426A
Authority
GB
United Kingdom
Prior art keywords
halogen
hydrogen
heated
compound
incandescent lamps
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
GB22391/69A
Inventor
J R Coaton
J M Rees
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.)
Thorn Lighting Ltd
Original Assignee
Thorn Lighting Ltd
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 Thorn Lighting Ltd filed Critical Thorn Lighting Ltd
Priority to GB22391/69A priority Critical patent/GB1267426A/en
Priority to ZA702721A priority patent/ZA702721B/en
Priority to CA081287A priority patent/CA923191A/en
Priority to NL7006234.A priority patent/NL162509C/en
Priority to DE19702020921 priority patent/DE2020921C3/en
Priority to SE7005955A priority patent/SE373982B/xx
Publication of GB1267426A publication Critical patent/GB1267426A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/50—Selection of substances for gas fillings; Specified pressure thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/52—Means for obtaining or maintaining the desired pressure within the vessel
    • H01K1/54—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering
    • H01K1/56—Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering characterised by the material of the getter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Discharge Lamp (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1,267,426. Electric incandescent lamps. THORN LIGHTING Ltd. 1 May, 1969, No. 22391/69. Heading HlF. A tungsten-halogen cycle lamp having a fill comprising a compound containing hydrogen and a halogen which yields free halogen when heated is provided with means adapted to combine with the hydrogen yielded by the fill to reduce the hydrogen content of the reactive system. In a first embodiment the means comprises a structure which is arranged to be heated by the operation of the lamp and consists of a first material, such as Ti, Ta, Zr or Al or an alloy thereof, which absorbs hydrogen when heated and is reactive with the halogen, and a protective barrier of a second material, such as Pd or a Pd-Ni alloy, which is impermeable to the halogen but allows the hydrogen to permeate through to the first material. In a second embodiment the means consists of a second halogen which has a greater affinity for hydrogen than the halogen of the compound. The compound is preferably an alkyl halide such as methyl iodide.
GB22391/69A 1969-05-01 1969-05-01 Improvements in electric incandescent lamps Expired GB1267426A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB22391/69A GB1267426A (en) 1969-05-01 1969-05-01 Improvements in electric incandescent lamps
ZA702721A ZA702721B (en) 1969-05-01 1970-04-23 Improvements in electric incandescent lamps
CA081287A CA923191A (en) 1969-05-01 1970-04-28 Electric incandescent lamps
NL7006234.A NL162509C (en) 1969-05-01 1970-04-28 ELECTRIC LIGHT BULB WITH A WOLFRAM HALOGEN CYCLE.
DE19702020921 DE2020921C3 (en) 1969-05-01 1970-04-29 Tungsten-halogen incandescent lamp with regeneration cycle
SE7005955A SE373982B (en) 1969-05-01 1970-04-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22391/69A GB1267426A (en) 1969-05-01 1969-05-01 Improvements in electric incandescent lamps

Publications (1)

Publication Number Publication Date
GB1267426A true GB1267426A (en) 1972-03-22

Family

ID=10178621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22391/69A Expired GB1267426A (en) 1969-05-01 1969-05-01 Improvements in electric incandescent lamps

Country Status (5)

Country Link
CA (1) CA923191A (en)
GB (1) GB1267426A (en)
NL (1) NL162509C (en)
SE (1) SE373982B (en)
ZA (1) ZA702721B (en)

Also Published As

Publication number Publication date
SE373982B (en) 1975-02-17
CA923191A (en) 1973-03-20
NL7006234A (en) 1970-11-03
ZA702721B (en) 1971-01-27
NL162509C (en) 1980-05-16
NL162509B (en) 1979-12-17
DE2020921B2 (en) 1977-03-10
DE2020921A1 (en) 1970-11-19

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