GB1356893A - Tungsten-halogen cycle electric incandescent lamps - Google Patents

Tungsten-halogen cycle electric incandescent lamps

Info

Publication number
GB1356893A
GB1356893A GB4806472A GB4806472A GB1356893A GB 1356893 A GB1356893 A GB 1356893A GB 4806472 A GB4806472 A GB 4806472A GB 4806472 A GB4806472 A GB 4806472A GB 1356893 A GB1356893 A GB 1356893A
Authority
GB
United Kingdom
Prior art keywords
tungsten
lamp
halogen
halogen cycle
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
GB4806472A
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 Electrical Industries Ltd
Original Assignee
Thorn Electrical 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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB4806472A priority Critical patent/GB1356893A/en
Priority to US406946A priority patent/US3919578A/en
Priority to JP48115979A priority patent/JPS4995482A/ja
Priority to NL7314374A priority patent/NL7314374A/xx
Priority to DE19732352195 priority patent/DE2352195A1/en
Publication of GB1356893A publication Critical patent/GB1356893A/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
    • 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

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Resistance Heating (AREA)

Abstract

1356893 Tungsten-halogen lamp THORN ELECTRICAL INDUSTRIES Ltd 18 Oct 1972 48064/72 Heading H1F A tungsten-halogen cycle incandescent lamp has a fill including phosphorus and iodine, at least part of the iodine being provided by thermal dissociation of P 2 I 4 within the lamp. The phosphorus iodide may be introduced into the lamp envelope as a benzene or toluene solution and the solvent removed by flushing with dry nitrogen. The phosphorus formed on dissociation acts as a getter. The lamp may contain CHI 3 and another halogen.
GB4806472A 1972-10-18 1972-10-18 Tungsten-halogen cycle electric incandescent lamps Expired GB1356893A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4806472A GB1356893A (en) 1972-10-18 1972-10-18 Tungsten-halogen cycle electric incandescent lamps
US406946A US3919578A (en) 1972-10-18 1973-10-16 Tungsten-halogen cycle electric incandescent lamp and method of manufacturing
JP48115979A JPS4995482A (en) 1972-10-18 1973-10-17
NL7314374A NL7314374A (en) 1972-10-18 1973-10-18
DE19732352195 DE2352195A1 (en) 1972-10-18 1973-10-18 TUNGSTEN HALOGEN LAMP AND METHOD FOR MANUFACTURING IT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4806472A GB1356893A (en) 1972-10-18 1972-10-18 Tungsten-halogen cycle electric incandescent lamps

Publications (1)

Publication Number Publication Date
GB1356893A true GB1356893A (en) 1974-06-19

Family

ID=10447227

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4806472A Expired GB1356893A (en) 1972-10-18 1972-10-18 Tungsten-halogen cycle electric incandescent lamps

Country Status (5)

Country Link
US (1) US3919578A (en)
JP (1) JPS4995482A (en)
DE (1) DE2352195A1 (en)
GB (1) GB1356893A (en)
NL (1) NL7314374A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3266909D1 (en) * 1981-06-23 1985-11-21 Emi Plc Thorn Tungsten halogen incandescent lamps and mixed filling of gas and halogen compounds
US4998038A (en) * 1988-12-05 1991-03-05 Kabushiki Kaisha Toshiba Pitted light diffusive coating, a method of forming the coating and a lamp having the coating

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL135014C (en) * 1966-09-20
GB1276828A (en) * 1970-10-15 1972-06-07 Thorn Electrical Ind Ltd Manufacture of tungsten halogen lamps
US3712701A (en) * 1971-08-27 1973-01-23 British Lighting Ind Ltd Electric incandescent lamps

Also Published As

Publication number Publication date
US3919578A (en) 1975-11-11
DE2352195A1 (en) 1974-05-02
NL7314374A (en) 1974-04-22
JPS4995482A (en) 1974-09-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years