JPS57212765A - Filament coil for lamp - Google Patents

Filament coil for lamp

Info

Publication number
JPS57212765A
JPS57212765A JP57097873A JP9787382A JPS57212765A JP S57212765 A JPS57212765 A JP S57212765A JP 57097873 A JP57097873 A JP 57097873A JP 9787382 A JP9787382 A JP 9787382A JP S57212765 A JPS57212765 A JP S57212765A
Authority
JP
Japan
Prior art keywords
lamp
filament coil
filament
coil
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.)
Granted
Application number
JP57097873A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0259583B2 (OSRAM
Inventor
Hoofuman Deiitaa
Buainharuto Erorufu
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of JPS57212765A publication Critical patent/JPS57212765A/ja
Publication of JPH0259583B2 publication Critical patent/JPH0259583B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/02—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by movement of a float carrying a magnet

Landscapes

  • Discharge Lamp (AREA)
JP57097873A 1981-06-12 1982-06-09 Filament coil for lamp Granted JPS57212765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813123442 DE3123442A1 (de) 1981-06-12 1981-06-12 Gluehwendel fuer eine elektrische lampe und verfahren zur herstellung

Publications (2)

Publication Number Publication Date
JPS57212765A true JPS57212765A (en) 1982-12-27
JPH0259583B2 JPH0259583B2 (OSRAM) 1990-12-12

Family

ID=6134605

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57097873A Granted JPS57212765A (en) 1981-06-12 1982-06-09 Filament coil for lamp

Country Status (3)

Country Link
US (1) US4506187A (OSRAM)
JP (1) JPS57212765A (OSRAM)
DE (1) DE3123442A1 (OSRAM)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527653A1 (de) * 1995-07-28 1997-01-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrodenwendel für Entladungslampen und Verfahren zur Herstellung einer derartigen Elektrodenwendel
US6465939B1 (en) * 1999-12-02 2002-10-15 Lcd Lighting, Inc. Robust lamp filament
US6984928B2 (en) * 2002-03-05 2006-01-10 Mineta Company Ltd. Coil filament
US7462991B2 (en) * 2005-02-16 2008-12-09 Elmet Technologies, Inc. Fluorescent lamp cathode and method of making cathodes
EP1983546A1 (en) * 2007-04-20 2008-10-22 PANalytical B.V. X-ray cathode and tube
US8610350B2 (en) * 2009-12-15 2013-12-17 Osram Gesellschaft Mit Beschraenkter Haftung Electrode structures for discharge lamps
CN102832087B (zh) * 2012-07-30 2016-03-09 安徽海洋照明电器有限公司 钢芯线取代钼丝的钨灯丝制作工艺
US12198922B2 (en) * 2020-03-13 2025-01-14 Applied Materials, Inc. Lamp filament having a pitch gradient and method of making

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL19275C (OSRAM) * 1925-09-21
US2479193A (en) * 1946-07-08 1949-08-16 Gen Electric Articulated cathode
US2922916A (en) * 1953-11-10 1960-01-26 Duro Test Corp Electrode for fluorescent lamps
US3294125A (en) * 1963-11-14 1966-12-27 Westinghouse Electric Corp Electrode coil and method
BE785860A (fr) * 1971-07-06 1973-01-05 Gen Electric Electrode a filament et procede pour la fabrication de celle-ci
NL7301829A (OSRAM) * 1973-02-09 1974-08-13
US3908251A (en) * 1974-04-11 1975-09-30 Gte Sylvania Inc Method of making beaded filament coil

Also Published As

Publication number Publication date
JPH0259583B2 (OSRAM) 1990-12-12
DE3123442C2 (OSRAM) 1989-06-29
US4506187A (en) 1985-03-19
DE3123442A1 (de) 1982-12-30

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