DE1614495B1 - Mittelbar geheizte vorratskathode für elektrische entladungsgefässe - Google Patents

Mittelbar geheizte vorratskathode für elektrische entladungsgefässe

Info

Publication number
DE1614495B1
DE1614495B1 DE19671614495 DE1614495A DE1614495B1 DE 1614495 B1 DE1614495 B1 DE 1614495B1 DE 19671614495 DE19671614495 DE 19671614495 DE 1614495 A DE1614495 A DE 1614495A DE 1614495 B1 DE1614495 B1 DE 1614495B1
Authority
DE
Germany
Prior art keywords
discharge vessels
heater
electrical discharge
indirectly heated
cylinder
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Withdrawn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
DE19671614495
Other languages
English (en)
Inventor
Helmut Dr Katz
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of DE1614495B1 publication Critical patent/DE1614495B1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H01J1/24—Insulating layer or body located between heater and emissive material
    • 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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode

Landscapes

  • Solid Thermionic Cathode (AREA)
  • Physical Vapour Deposition (AREA)
  • Cookers (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

Hierzu 1 Blatt Zeichnungen

Claims (4)

Patentanspiüche:
1. Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße, bei der eine stirnseitige poröse Emissionsstoffträgerscheibe einen topfförmigen Vorratsbehälterabdeckt, unter dem der mit einer Isolierschicht überzogene Heizer in einem einseitig offenen Zylindermantel untergebracht ist, der im Abstand von einem Tragfolienzylinder umgeben ist, dadurch gekennzeichnet, daß der den Heizer unmittelbar umschließende Mantel aus Oxidkeramik, wie Aluminium- oder B'erylliümoxid, besteht und am Vorratstopf befestigt ist.
2. Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße nach Anspruch 1, dadurch gekennzeichnet,"cfaß der Heizer einfach gewendelt ausgebildet rund mit seinem einen Wendelende am Vorratstopf galvanischbefestigt ist.
3. Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße nach Anspruch 2, dadurch gekennzeichnet, daß als Heizstromzuleitung ein zusätzlich zwischen Keramikmantel und Tragfonenzylinder mit dem Vorratstopf galvanisch verbundener metallischer Zylinder vorgesehen ist.
4. Mittelbar geheizte Vorratskathode für elektrische Entladungsgefäße nach einem oder mehreren der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Heizer zusätzlich mit einer Isoliermasse eingekittet ist.
DE19671614495 1967-04-10 1967-04-10 Mittelbar geheizte vorratskathode für elektrische entladungsgefässe Withdrawn DE1614495B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0109263 1967-04-10

Publications (1)

Publication Number Publication Date
DE1614495B1 true DE1614495B1 (de) 1971-03-11

Family

ID=7529393

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671614495 Withdrawn DE1614495B1 (de) 1967-04-10 1967-04-10 Mittelbar geheizte vorratskathode für elektrische entladungsgefässe

Country Status (5)

Country Link
US (1) US3495121A (de)
DE (1) DE1614495B1 (de)
FR (1) FR1559501A (de)
GB (1) GB1209078A (de)
NL (1) NL6800951A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603341A1 (de) * 1976-01-29 1977-08-11 Siemens Ag Elektronenstrahlerzeuger insbesondere fuer hochleistungs-wanderfeldroehren

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2404362B1 (de) * 1974-01-30 1975-07-31 Standard Elektrik Lorenz Ag, 7000 Stuttgart Heizkörper für eine indirekt geheizte Kathode
US3883767A (en) * 1974-02-08 1975-05-13 Gte Sylvania Inc Heater for fast warmup cathode
FR2621735A1 (fr) * 1987-10-09 1989-04-14 Thomson Csf Cathode a oxydes robuste pour tube a rayons cathodiques
KR0147542B1 (ko) * 1989-12-31 1998-08-01 김정배 전자관용 함침형 음극 구조체
GB2268325B (en) * 1992-07-01 1996-01-03 Thorn Emi Electronics Ltd Thermionic cathode structure
US20030025435A1 (en) * 1999-11-24 2003-02-06 Vancil Bernard K. Reservoir dispenser cathode and method of manufacture
US20110140074A1 (en) * 2009-12-16 2011-06-16 Los Alamos National Security, Llc Room temperature dispenser photocathode

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE514709A (de) * 1951-10-13
NL103155C (de) * 1958-06-19 1900-01-01
NL101694C (de) * 1959-03-06
US3421039A (en) * 1966-01-03 1969-01-07 Hughes Aircraft Co Thermionic cathode having emissive material and metallic paths which sputter away at the same rate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603341A1 (de) * 1976-01-29 1977-08-11 Siemens Ag Elektronenstrahlerzeuger insbesondere fuer hochleistungs-wanderfeldroehren

Also Published As

Publication number Publication date
FR1559501A (de) 1969-01-27
GB1209078A (en) 1970-10-14
US3495121A (en) 1970-02-10
NL6800951A (de) 1968-10-11

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee