DE69007383T2 - Kathode für Elektronenstrahlröhre. - Google Patents

Kathode für Elektronenstrahlröhre.

Info

Publication number
DE69007383T2
DE69007383T2 DE69007383T DE69007383T DE69007383T2 DE 69007383 T2 DE69007383 T2 DE 69007383T2 DE 69007383 T DE69007383 T DE 69007383T DE 69007383 T DE69007383 T DE 69007383T DE 69007383 T2 DE69007383 T2 DE 69007383T2
Authority
DE
Germany
Prior art keywords
cathode
electron beam
beam tube
tube
electron
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 - Fee Related
Application number
DE69007383T
Other languages
English (en)
Other versions
DE69007383D1 (de
Inventor
Yukio Hara
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of DE69007383D1 publication Critical patent/DE69007383D1/de
Application granted granted Critical
Publication of DE69007383T2 publication Critical patent/DE69007383T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01J1/14—Solid thermionic cathodes characterised by the 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
    • H01J1/14—Solid thermionic cathodes characterised by the material
    • H01J1/142—Solid thermionic cathodes characterised by the material with alkaline-earth metal oxides, or such oxides used in conjunction with reducing agents, as an emissive material
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
DE69007383T 1989-09-05 1990-09-04 Kathode für Elektronenstrahlröhre. Expired - Fee Related DE69007383T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1228433A JPH0393126A (ja) 1989-09-05 1989-09-05 電子管用陰極

Publications (2)

Publication Number Publication Date
DE69007383D1 DE69007383D1 (de) 1994-04-21
DE69007383T2 true DE69007383T2 (de) 1994-10-06

Family

ID=16876413

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69007383T Expired - Fee Related DE69007383T2 (de) 1989-09-05 1990-09-04 Kathode für Elektronenstrahlröhre.

Country Status (4)

Country Link
EP (1) EP0416535B1 (de)
JP (1) JPH0393126A (de)
KR (1) KR100198909B1 (de)
DE (1) DE69007383T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930009170B1 (ko) * 1991-10-24 1993-09-23 삼성전관 주식회사 함침형 음극의 제조방법
US5959395A (en) * 1996-02-29 1999-09-28 Matsushita Electronics Corporation Cathode for electron tube
CN102543617A (zh) * 2011-12-15 2012-07-04 宁波盈旺通信设备有限公司 金属陶瓷气体放电管的电子发射材料

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR911627A (fr) * 1945-01-19 1946-07-16 Sadir Carpentier Perfectionnement aux cathodes des tubes à décharge électronique
FR1274476A (fr) * 1959-08-06 1961-10-27 Philips Nv Procédé pour la fabrication d'une cathode à oxydes et cathode ainsi fabriquée
US3625759A (en) * 1967-04-03 1971-12-07 Varian Associates Process for making oxide cathodes having improved thermal emissivity

Also Published As

Publication number Publication date
EP0416535A3 (en) 1991-05-08
JPH0393126A (ja) 1991-04-18
KR910007027A (ko) 1991-04-30
EP0416535A2 (de) 1991-03-13
DE69007383D1 (de) 1994-04-21
KR100198909B1 (ko) 1999-06-15
EP0416535B1 (de) 1994-03-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN

8339 Ceased/non-payment of the annual fee