FR2388407A1 - Lampe electrique a incandescence - Google Patents

Lampe electrique a incandescence

Info

Publication number
FR2388407A1
FR2388407A1 FR7811316A FR7811316A FR2388407A1 FR 2388407 A1 FR2388407 A1 FR 2388407A1 FR 7811316 A FR7811316 A FR 7811316A FR 7811316 A FR7811316 A FR 7811316A FR 2388407 A1 FR2388407 A1 FR 2388407A1
Authority
FR
France
Prior art keywords
filaments
incandescent lamp
resonant frequencies
dia
series connected
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.)
Withdrawn
Application number
FR7811316A
Other languages
English (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 FR2388407A1 publication Critical patent/FR2388407A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Landscapes

  • Electric Stoves And Ranges (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Resistance Heating (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Les lampes à incandescence électriques présentant un filament comprenant plusieurs parties, dont les parties voisines font entre elles un angle d'au maximum 45 degrés , sont très sensibles aux chocs et aux vibrations. Lesdites parties voisines du filament risquent de se rapprocher de façon à provoquer des étincelles et, de ce fait, la surcharge du filament. Conformément à l'invention, on obtient des lampes présentant une plus grande résistance aux chocs et aux vibrations en donnant une fréquence de résonance différente aux parties voisines du filament. Application : éclairage électrique, projection.
FR7811316A 1977-04-18 1978-04-18 Lampe electrique a incandescence Withdrawn FR2388407A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7704182A NL7704182A (nl) 1977-04-18 1977-04-18 Elektrische gloeilamp.

Publications (1)

Publication Number Publication Date
FR2388407A1 true FR2388407A1 (fr) 1978-11-17

Family

ID=19828373

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811316A Withdrawn FR2388407A1 (fr) 1977-04-18 1978-04-18 Lampe electrique a incandescence

Country Status (7)

Country Link
JP (1) JPS53129474A (fr)
BE (1) BE866050A (fr)
DE (1) DE2814823A1 (fr)
ES (1) ES468859A1 (fr)
FR (1) FR2388407A1 (fr)
IT (1) IT1094149B (fr)
NL (1) NL7704182A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7902016A (nl) * 1979-03-14 1980-09-16 Philips Nv Elektrische gloeilamp.
US4743803A (en) * 1987-05-15 1988-05-10 General Electric Company General service tungsten-halogen incandescent lamp having improved filament shock resistance
JP4336385B2 (ja) * 2006-05-16 2009-09-30 パナソニック株式会社 管球、反射鏡付き管球、および照明装置
WO2008004540A1 (fr) * 2006-07-03 2008-01-10 Panasonic Corporation Ampoule, ampoule avec réflecteur et dispositif d'éclairage
JP2008016206A (ja) * 2006-07-03 2008-01-24 Matsushita Electric Ind Co Ltd 管球、反射鏡付き管球、および照明装置

Also Published As

Publication number Publication date
IT1094149B (it) 1985-07-26
NL7704182A (nl) 1978-10-20
DE2814823A1 (de) 1978-10-19
BE866050A (fr) 1978-10-17
IT7822333A0 (it) 1978-04-14
ES468859A1 (es) 1978-11-16
JPS53129474A (en) 1978-11-11

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Legal Events

Date Code Title Description
ST Notification of lapse