GB1161038A - Electric incandescent lamps - Google Patents

Electric incandescent lamps

Info

Publication number
GB1161038A
GB1161038A GB60/68A GB6068A GB1161038A GB 1161038 A GB1161038 A GB 1161038A GB 60/68 A GB60/68 A GB 60/68A GB 6068 A GB6068 A GB 6068A GB 1161038 A GB1161038 A GB 1161038A
Authority
GB
United Kingdom
Prior art keywords
bulb
temperature
metal parts
coating
filament
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
GB60/68A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1161038A publication Critical patent/GB1161038A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/18—Mountings or supports for the incandescent body
    • H01K1/20—Mountings or supports for the incandescent body characterised by the material thereof
    • 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
    • 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

  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Resistance Heating (AREA)

Abstract

1,161,038. Electric incandescent lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 1 Jan., 1968 [4 Jan., 1967 8 Dec., 1967], No. 60/68. Heading H1F. In an incandescent lamp comprising a tungsten filament situated within a bulb of highmelting-point translucent material, e.g. quartz, having a filling of hydrogen with chlorine, bromine or both, the filament being so near to the bulb wall that the temperature of the wall during operation is above the temperature at which compounds of tungsten and halogen condense, the other metal parts within the bulb are of molybdenum coated with a carbon film. These metal parts may be lead-in wires, filament supports, mirrors or screens and the coating may have a thickness of the order of 1 micron. The gas mixture may be introduced in the form of HCI, HBr or hydrocarbon halide such as CH 2 , Cl 2 , CH 2 , Br 2 or CH 2 , Cl Br with additional hydrogen if desired, and an inert gas may also be included. The carbon coating also serves as a getter for oxygen. The coating may be produced by heating the metal parts in chloroform at a temperature between 800‹ and 950‹ C. for a very short period, e.g. 1 second.
GB60/68A 1967-01-04 1968-01-01 Electric incandescent lamps Expired GB1161038A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6700099A NL6700099A (en) 1967-01-04 1967-01-04
NL6716682A NL6716682A (en) 1967-01-04 1967-12-08

Publications (1)

Publication Number Publication Date
GB1161038A true GB1161038A (en) 1969-08-13

Family

ID=26644133

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60/68A Expired GB1161038A (en) 1967-01-04 1968-01-01 Electric incandescent lamps

Country Status (10)

Country Link
US (1) US3538373A (en)
AT (1) AT279732B (en)
BE (1) BE708970A (en)
CH (1) CH483118A (en)
DE (1) DE1639080B2 (en)
ES (1) ES348944A1 (en)
FR (1) FR1549963A (en)
GB (1) GB1161038A (en)
NL (2) NL6700099A (en)
NO (1) NO120121B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2009916C2 (en) * 1970-03-03 1985-05-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Halogen light bulb
JPS4834712B1 (en) * 1970-12-16 1973-10-23
NL168085C (en) * 1972-05-17 1982-02-16 Philips Nv ELECTRIC TUNGSTEN BOMB CYCLE LIGHT BULB.
US3826946A (en) * 1973-05-24 1974-07-30 Gen Electric Vapor discharge lamp electrode having carbon-coated areas
DE2363843A1 (en) * 1973-12-21 1975-06-26 Philips Patentverwaltung METAL IODIDE VAPOR DISCHARGE LAMP
US3912960A (en) * 1974-06-21 1975-10-14 Gen Electric Halogen lamp with internal molybdenum parts
US4015158A (en) * 1974-08-30 1977-03-29 General Electric Company Bromine lamp with molybdenum parts
US4015157A (en) * 1974-09-20 1977-03-29 General Electric Company Iodine lamp with molybdenum parts
US4629935A (en) * 1985-02-11 1986-12-16 Gte Products Corporation Tungsten-halogen lamp with organic and inorganic getters
US4629936A (en) * 1985-02-11 1986-12-16 Gte Products Corporation Tungsten-halogen lamp with means for reducing filament embrittlement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US497038A (en) * 1893-05-09 Electric lamp
US2444423A (en) * 1945-10-08 1948-07-06 Tung Sol Lamp Works Inc Incandescent lamp and the like
US2883571A (en) * 1958-03-03 1959-04-21 Gen Electric Electric incandescent lamp
US3022438A (en) * 1959-09-10 1962-02-20 Polaroid Corp Electric lamps
US3091718A (en) * 1960-07-08 1963-05-28 Duro Test Corp Constant lumen maintenance lamp
US3132278A (en) * 1961-09-18 1964-05-05 Gen Electric Iodine cycle incandescent lamps
GB1047302A (en) * 1963-03-28
NL6407446A (en) * 1964-07-01 1966-01-03
US3412277A (en) * 1966-04-08 1968-11-19 Duro Test Corp Incandescent lamp with addition of fluorine compounds to the operating gas filling

Also Published As

Publication number Publication date
FR1549963A (en) 1968-12-13
BE708970A (en) 1968-07-04
NL6716682A (en) 1969-06-10
AT279732B (en) 1970-03-10
DE1639080A1 (en) 1970-07-16
DE1639080B2 (en) 1977-03-10
US3538373A (en) 1970-11-03
ES348944A1 (en) 1969-08-16
CH483118A (en) 1969-12-15
NO120121B (en) 1970-08-31
NL6700099A (en) 1968-07-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee