FR2399730A1 - Dispositif pour le raccordement du filament d'un tube cathodique a chauffage indirect - Google Patents

Dispositif pour le raccordement du filament d'un tube cathodique a chauffage indirect

Info

Publication number
FR2399730A1
FR2399730A1 FR7822937A FR7822937A FR2399730A1 FR 2399730 A1 FR2399730 A1 FR 2399730A1 FR 7822937 A FR7822937 A FR 7822937A FR 7822937 A FR7822937 A FR 7822937A FR 2399730 A1 FR2399730 A1 FR 2399730A1
Authority
FR
France
Prior art keywords
filament
elements
tube
indirect heating
piece
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
FR7822937A
Other languages
English (en)
Other versions
FR2399730B1 (fr
Inventor
Peter Schmidt
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2399730A1 publication Critical patent/FR2399730A1/fr
Application granted granted Critical
Publication of FR2399730B1 publication Critical patent/FR2399730B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/04—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Resistance Heating (AREA)

Abstract

Dispositif pour le raccordement du filament d'un tube cathodique à chauffage indirect, constitué par deux éléments identiques 1, 2 soudés à une patte de support 10 des électrodes et connectés, d'une part, à une extrémité du filament et, d'autre part 12, à une borne de chauffage située dans la base du tube. Selon l'invention, les deux élements sont fabriqués séparément et reliés ensuite par une pièce de matériau isolant 3, par exemple, en céramique, verre ou mica. Le risque de déréglage du canon à électrons au moment de la séparation des deux éléments d'un dispositif classique fait d'une seule pièce est ainsi éliminé. Application principale aux tubes cathodiques pour récepteurs de télévision en couleur.
FR7822937A 1977-08-03 1978-08-03 Dispositif pour le raccordement du filament d'un tube cathodique a chauffage indirect Granted FR2399730A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2734869A DE2734869C2 (de) 1977-08-03 1977-08-03 Heizeranschlußbügel für Kathodenstrahlröhren

Publications (2)

Publication Number Publication Date
FR2399730A1 true FR2399730A1 (fr) 1979-03-02
FR2399730B1 FR2399730B1 (fr) 1983-10-28

Family

ID=6015461

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822937A Granted FR2399730A1 (fr) 1977-08-03 1978-08-03 Dispositif pour le raccordement du filament d'un tube cathodique a chauffage indirect

Country Status (7)

Country Link
BE (1) BE869471A (fr)
DE (1) DE2734869C2 (fr)
FI (1) FI66502C (fr)
FR (1) FR2399730A1 (fr)
GB (1) GB2002168B (fr)
IT (1) IT1118231B (fr)
NL (1) NL7807962A (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1504694A (fr) * 1965-10-22 1967-12-08 Philips Nv Source d'électrons destinée au canon électronique d'un tube à rayons cathodiques
FR2018735A1 (fr) * 1968-09-24 1970-06-26 Rca Corp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1504694A (fr) * 1965-10-22 1967-12-08 Philips Nv Source d'électrons destinée au canon électronique d'un tube à rayons cathodiques
FR2018735A1 (fr) * 1968-09-24 1970-06-26 Rca Corp

Also Published As

Publication number Publication date
FI66502C (fi) 1984-10-10
GB2002168A (en) 1979-02-14
IT1118231B (it) 1986-02-24
GB2002168B (en) 1982-08-18
IT7826053A0 (it) 1978-07-25
BE869471A (nl) 1979-02-05
DE2734869A1 (de) 1979-02-22
NL7807962A (nl) 1979-02-06
FR2399730B1 (fr) 1983-10-28
FI782378A (fi) 1979-02-04
FI66502B (fi) 1984-06-29
DE2734869C2 (de) 1982-09-02

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse