GB1407568A - Method of manufacturing a halogen incandescent lamp - Google Patents

Method of manufacturing a halogen incandescent lamp

Info

Publication number
GB1407568A
GB1407568A GB2515373A GB2515373A GB1407568A GB 1407568 A GB1407568 A GB 1407568A GB 2515373 A GB2515373 A GB 2515373A GB 2515373 A GB2515373 A GB 2515373A GB 1407568 A GB1407568 A GB 1407568A
Authority
GB
United Kingdom
Prior art keywords
lamp
halogen incandescent
inert gas
incandescent lamp
voltage
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
GB2515373A
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 GB1407568A publication Critical patent/GB1407568A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/22—Exhausting, degassing, filling, or cleaning vessels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Resistance Heating (AREA)

Abstract

1407568 Halogen incandescent lamp PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 May 1973 [31 May 1972] 25153/73 Heading H1F A halogen incandescent lamp is made by filling an envelope provided with filament with a a gas mixture comprising an inert gas and a hydrocarbon halide compound, sealing the lamp, cooling the sealed lamp to a temperature below the condensation temperature of the inert gas and then immediately operating the lamp so as to decompose the compound into carbon and a hydrogen halide. In an embodiment, an envelope having a tungsten filament is filled with a mixture of Kr and CH 2 Br 2 , sealed and immersed in liquid nitrogen. The lamp is removed from the liquid nitrogen and a voltage applied across the terminals which is 80% of the operating voltage. The voltage is then increased to 110% of the operating voltage. No deposit of carbon black is observed. The inert gas may also be Xe or Ar. The carbon released by decomposition is said to serve as a getter for unwanted residual gases such as oxygen.
GB2515373A 1972-05-31 1973-05-25 Method of manufacturing a halogen incandescent lamp Expired GB1407568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7207324A NL7207324A (en) 1972-05-31 1972-05-31

Publications (1)

Publication Number Publication Date
GB1407568A true GB1407568A (en) 1975-09-24

Family

ID=19816169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2515373A Expired GB1407568A (en) 1972-05-31 1973-05-25 Method of manufacturing a halogen incandescent lamp

Country Status (8)

Country Link
US (1) US3854786A (en)
JP (1) JPS4942179A (en)
BE (1) BE800205A (en)
CA (1) CA975419A (en)
DE (1) DE2324139A1 (en)
FR (1) FR2186731B1 (en)
GB (1) GB1407568A (en)
NL (1) NL7207324A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129348A (en) * 1977-11-17 1978-12-12 Gte Sylvania Incorporated Method of manufacturing tungsten halogen lamp
JPS5546814U (en) * 1978-09-20 1980-03-27
EP0116271B1 (en) * 1983-01-12 1991-06-05 Hamai Electric Lamp Co., Ltd. Method of and apparatus for manufacturing small-size gas-filled lamps
JPS622447A (en) * 1985-06-26 1987-01-08 浜井電球工業株式会社 Micro type chipless halogen lamp and method and apparatus for manufacturing the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540647A (en) * 1945-05-04 1951-02-06 Hartford Nat Bank & Trust Co Method of manufacturing electronic tubes with active getters
NL6614205A (en) * 1966-10-08 1968-04-09
US3589790A (en) * 1968-11-13 1971-06-29 Westinghouse Electric Corp Method of dosing a halogen cycle incandescent lamp
JPS4826632B1 (en) * 1968-12-27 1973-08-13

Also Published As

Publication number Publication date
FR2186731B1 (en) 1976-11-12
DE2324139A1 (en) 1973-12-13
FR2186731A1 (en) 1974-01-11
JPS4942179A (en) 1974-04-20
US3854786A (en) 1974-12-17
NL7207324A (en) 1973-12-04
CA975419A (en) 1975-09-30
BE800205A (en) 1973-11-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]