NL8601374A - Werkwijze voor het vervaardigen van een naleveringskathode. - Google Patents

Werkwijze voor het vervaardigen van een naleveringskathode. Download PDF

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Publication number
NL8601374A
NL8601374A NL8601374A NL8601374A NL8601374A NL 8601374 A NL8601374 A NL 8601374A NL 8601374 A NL8601374 A NL 8601374A NL 8601374 A NL8601374 A NL 8601374A NL 8601374 A NL8601374 A NL 8601374A
Authority
NL
Netherlands
Prior art keywords
tungsten body
tungsten
electron
scandium oxide
cathode
Prior art date
Application number
NL8601374A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Priority to NL8601374A priority Critical patent/NL8601374A/nl
Priority to DE8787200951T priority patent/DE3762075D1/de
Priority to EP87200951A priority patent/EP0248470B1/en
Priority to KR870005197A priority patent/KR870011653A/ko
Priority to JP12730587A priority patent/JPH0711935B2/ja
Publication of NL8601374A publication Critical patent/NL8601374A/nl

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic 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
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/04—Manufacture of electrodes or electrode systems of thermionic cathodes
    • H01J9/042—Manufacture, activation of the emissive part
    • H01J9/047—Cathodes having impregnated bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
NL8601374A 1986-05-29 1986-05-29 Werkwijze voor het vervaardigen van een naleveringskathode. NL8601374A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL8601374A NL8601374A (nl) 1986-05-29 1986-05-29 Werkwijze voor het vervaardigen van een naleveringskathode.
DE8787200951T DE3762075D1 (de) 1986-05-29 1987-05-20 Herstellungsverfahren einer vorratskathode.
EP87200951A EP0248470B1 (en) 1986-05-29 1987-05-20 Method of manufacturing a dispenser cathode
KR870005197A KR870011653A (ko) 1986-05-29 1987-05-26 음극 제조 방법
JP12730587A JPH0711935B2 (ja) 1986-05-29 1987-05-26 ディスペンサ−陰極の製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8601374A NL8601374A (nl) 1986-05-29 1986-05-29 Werkwijze voor het vervaardigen van een naleveringskathode.
NL8601374 1986-05-29

Publications (1)

Publication Number Publication Date
NL8601374A true NL8601374A (nl) 1987-12-16

Family

ID=19848086

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8601374A NL8601374A (nl) 1986-05-29 1986-05-29 Werkwijze voor het vervaardigen van een naleveringskathode.

Country Status (5)

Country Link
EP (1) EP0248470B1 (ja)
JP (1) JPH0711935B2 (ja)
KR (1) KR870011653A (ja)
DE (1) DE3762075D1 (ja)
NL (1) NL8601374A (ja)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236287A (en) * 1979-06-25 1980-12-02 The United States Of America As Represented By The Secretary Of The Army Method of making a ruggedized high current density cathode
NL8403032A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode, naleveringskathode vervaardigd met deze werkwijze.

Also Published As

Publication number Publication date
EP0248470B1 (en) 1990-03-28
DE3762075D1 (de) 1990-05-03
JPS62281223A (ja) 1987-12-07
EP0248470A1 (en) 1987-12-09
KR870011653A (ko) 1987-12-24
JPH0711935B2 (ja) 1995-02-08

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
BV The patent application has lapsed