CA1144974A - Electric incandescent lamp - Google Patents

Electric incandescent lamp

Info

Publication number
CA1144974A
CA1144974A CA000347103A CA347103A CA1144974A CA 1144974 A CA1144974 A CA 1144974A CA 000347103 A CA000347103 A CA 000347103A CA 347103 A CA347103 A CA 347103A CA 1144974 A CA1144974 A CA 1144974A
Authority
CA
Canada
Prior art keywords
filament
lamp
filter
lamp envelope
electric incandescent
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
CA000347103A
Other languages
English (en)
French (fr)
Inventor
John Fitzgerald
Willem L. Van Hoorn
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
Application granted granted Critical
Publication of CA1144974A publication Critical patent/CA1144974A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels

Landscapes

  • Resistance Heating (AREA)
  • Radiation-Therapy Devices (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
CA000347103A 1979-03-14 1980-03-06 Electric incandescent lamp Expired CA1144974A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL7902016 1979-03-14
NL7902016A NL7902016A (nl) 1979-03-14 1979-03-14 Elektrische gloeilamp.

Publications (1)

Publication Number Publication Date
CA1144974A true CA1144974A (en) 1983-04-19

Family

ID=19832797

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000347103A Expired CA1144974A (en) 1979-03-14 1980-03-06 Electric incandescent lamp

Country Status (8)

Country Link
US (1) US4311940A (Direct)
JP (1) JPS55124946A (Direct)
BE (1) BE882199A (Direct)
CA (1) CA1144974A (Direct)
DE (1) DE3009362A1 (Direct)
FR (1) FR2451631A1 (Direct)
GB (1) GB2044993B (Direct)
NL (1) NL7902016A (Direct)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714857A (en) * 1986-04-21 1987-12-22 Duro-Test Corporation Infrared reflective lamp with envelope having straight sections
EP0588541A1 (en) * 1992-09-14 1994-03-23 Ge Lighting Limited Electric incandescent lamps
US5962973A (en) * 1997-06-06 1999-10-05 Guide Corporation Optically-coated dual-filament bulb for single compartment headlamp
DE19843852A1 (de) * 1998-09-24 2000-03-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektrische Glühlampe
JP2001155691A (ja) * 1999-11-26 2001-06-08 Philips Lighting Kk ランプ
GB2428878A (en) * 2005-07-25 2007-02-07 Gen Electric Light source for high efficiency illumination systems
GB2428877A (en) * 2005-07-25 2007-02-07 Gen Electric Gap-Wound Filament Array and Lamps Using the Same
USD647235S1 (en) 2010-03-08 2011-10-18 Hubbell Incorporated Lighting fixture having struts
USD689646S1 (en) 2012-01-25 2013-09-10 Hubbell Incorporated Wall mounted light fixture having struts

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2144673A (en) * 1935-10-31 1939-01-24 Birdseye Electric Company Incandescent lamp and its manufacture
US2784338A (en) * 1954-07-09 1957-03-05 Siemens Electric Lamps & Suppl Incandescent electric lamps
US3445713A (en) * 1966-12-12 1969-05-20 Gen Electric Halogen cycle incandescent lamp
US3555338A (en) * 1967-03-10 1971-01-12 Sylvania Electric Prod Incandescent lamp
GB1168604A (en) * 1967-05-25 1969-10-29 Westinghouse Electric Corp Electric Lamp with Improved Light Source Mount.
US3543962A (en) * 1968-12-13 1970-12-01 Sylvania Electric Prod High wattage quartz halogen lamp
US3909653A (en) * 1969-05-02 1975-09-30 Westinghouse Electric Corp Compact electric incandescent lamp having planar filament and improved mount
GB1366987A (en) * 1972-10-11 1974-09-18 Gen Electric Co Ltd Filament mount structures for use in electric incandescent filament lamps
US4023060A (en) * 1975-11-28 1977-05-10 Gte Sylvania Incorporated Ruggedized, high power tungsten-halogen lamp
US4160929A (en) * 1977-03-25 1979-07-10 Duro-Test Corporation Incandescent light source with transparent heat mirror
US4079283A (en) * 1977-04-11 1978-03-14 Gte Sylvania Incorporated High wattage incandescent lamp with support for a planar segmented filament
NL7704182A (nl) * 1977-04-18 1978-10-20 Philips Nv Elektrische gloeilamp.

Also Published As

Publication number Publication date
JPS55124946A (en) 1980-09-26
US4311940A (en) 1982-01-19
BE882199A (fr) 1980-09-12
GB2044993B (en) 1983-01-06
FR2451631A1 (fr) 1980-10-10
NL7902016A (nl) 1980-09-16
GB2044993A (en) 1980-10-22
DE3009362A1 (de) 1980-09-25
FR2451631B1 (Direct) 1981-12-31

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Legal Events

Date Code Title Description
MKEX Expiry