GB2022917A - Electric incandescent lamp - Google Patents

Electric incandescent lamp

Info

Publication number
GB2022917A
GB2022917A GB7918672A GB7918672A GB2022917A GB 2022917 A GB2022917 A GB 2022917A GB 7918672 A GB7918672 A GB 7918672A GB 7918672 A GB7918672 A GB 7918672A GB 2022917 A GB2022917 A GB 2022917A
Authority
GB
United Kingdom
Prior art keywords
iodine
filament
electric incandescent
incandescent lamp
lamp
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
GB7918672A
Other versions
GB2022917B (en
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB2022917A publication Critical patent/GB2022917A/en
Application granted granted Critical
Publication of GB2022917B publication Critical patent/GB2022917B/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
    • H01K1/24—Mounts for lamps with connections at opposite ends, e.g. for tubular lamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto

Landscapes

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

Abstract

Known electric incandescent lamps having a bromine and hydrogen containing gas filling are also provided with iodine if they are to have a long life. This has a protecting influence on the colder tungsten parts of the lamp. However, the use of iodine also exhibits disadvantages. In lamps according to the invention the current inside the lamp envelope (1) is supplied to the coiled coil filament (5) via a helically-wound tungsten wire (6) which is screwed in (Figure 1) or around (Figure 2) the filament (5) and is in engagement with at least a secondary turn (7) of said filament. This construction enables the omission of the use of iodine. <IMAGE>
GB7918672A 1978-06-01 1979-05-29 Electric incandescent lamp Expired GB2022917B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7805958A NL7805958A (en) 1978-06-01 1978-06-01 ELECTRIC LIGHT BULB.

Publications (2)

Publication Number Publication Date
GB2022917A true GB2022917A (en) 1979-12-19
GB2022917B GB2022917B (en) 1982-05-06

Family

ID=19830961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7918672A Expired GB2022917B (en) 1978-06-01 1979-05-29 Electric incandescent lamp

Country Status (7)

Country Link
JP (1) JPS5822858B2 (en)
BE (1) BE876668A (en)
CA (1) CA1126322A (en)
DE (1) DE2921436A1 (en)
FR (1) FR2427684A1 (en)
GB (1) GB2022917B (en)
NL (1) NL7805958A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434373A2 (en) * 1989-12-21 1991-06-26 TUNGSRAM Részvénytársaság Inside current conductor for halogen-filled incandescent lamps especially lamps manufactured with curved tube enclosure and halogen-filled incandescent lamp made with the inside current conductor
EP0438254A2 (en) * 1990-01-16 1991-07-24 Ge Lighting Limited Circular heater lamp
GB2305585A (en) * 1995-03-09 1997-04-09 Ge Lighting Ltd Heat source

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100672363B1 (en) 2005-02-18 2007-01-24 엘지전자 주식회사 Lamp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376460A (en) * 1965-09-20 1968-04-02 Sylvania Electric Prod Conical shaped filament support
US3470410A (en) * 1967-01-16 1969-09-30 Gen Electric Bromine regenerative cycle incandescent lamps with protective overwind coils on coiled filament legs
NL7705668A (en) * 1977-05-24 1978-11-28 Philips Nv ELECTRIC HALOGEN BULB.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434373A2 (en) * 1989-12-21 1991-06-26 TUNGSRAM Részvénytársaság Inside current conductor for halogen-filled incandescent lamps especially lamps manufactured with curved tube enclosure and halogen-filled incandescent lamp made with the inside current conductor
EP0434373A3 (en) * 1989-12-21 1991-11-06 Tungsram Reszvenytarsasag Inside current conductor for halogen-filled incandescent lamps especially lamps manufactured with curved tube enclosure and halogen-filled incandescent lamp made with the inside current conductor
EP0438254A2 (en) * 1990-01-16 1991-07-24 Ge Lighting Limited Circular heater lamp
EP0438254A3 (en) * 1990-01-16 1991-11-13 Ge-Thorn Lamps Limited Circular heater lamp
GB2305585A (en) * 1995-03-09 1997-04-09 Ge Lighting Ltd Heat source
GB2305585B (en) * 1995-03-09 1999-02-10 Ge Lighting Ltd Heat source

Also Published As

Publication number Publication date
NL7805958A (en) 1979-12-04
FR2427684B1 (en) 1984-03-23
CA1126322A (en) 1982-06-22
JPS5822858B2 (en) 1983-05-11
DE2921436A1 (en) 1979-12-06
JPS554892A (en) 1980-01-14
GB2022917B (en) 1982-05-06
FR2427684A1 (en) 1979-12-28
BE876668A (en) 1979-11-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee