KR910008766A - 전자관 음극 - Google Patents

전자관 음극 Download PDF

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Publication number
KR910008766A
KR910008766A KR1019900007760A KR900007760A KR910008766A KR 910008766 A KR910008766 A KR 910008766A KR 1019900007760 A KR1019900007760 A KR 1019900007760A KR 900007760 A KR900007760 A KR 900007760A KR 910008766 A KR910008766 A KR 910008766A
Authority
KR
South Korea
Prior art keywords
electron
material layer
tube cathode
cathode
negative electrode
Prior art date
Application number
KR1019900007760A
Other languages
English (en)
Other versions
KR940009756B1 (ko
Inventor
히사오 나까니시
긴지로 사노
도요까즈 가마따
다까시 신죠
Original Assignee
시기 모리야
미쯔비시덴끼 가부시끼가이샤
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 시기 모리야, 미쯔비시덴끼 가부시끼가이샤 filed Critical 시기 모리야
Publication of KR910008766A publication Critical patent/KR910008766A/ko
Application granted granted Critical
Publication of KR940009756B1 publication Critical patent/KR940009756B1/ko

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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
    • H01J1/20—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

내용 없음

Description

전자관 음극
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 전자관 음극의1실시예를 도시한 개략적인 구조의 단면도.
제2도는 전자방사물질의 일부가 부상한 음극의 음극 뚜껑의 표면을 모식적으로 도시한 확대정면도.

Claims (1)

  1. 니켈기판금속의 면위에 바륨을 함유하는 알칼리로류 금속산화물(30)으로 사화스칸듐을 분산시킨 전자 반사물질층이 피착형성되는 음극(1)에 있어서, 상시 전자방사물질층(30)의 도포밀도가 2mg/mm3이하로 구성된 것을 특징으로 하는 전자관음극.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900007760A 1989-10-06 1990-05-29 전자관 음극 KR940009756B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP26236889A JPH0828183B2 (ja) 1989-10-06 1989-10-06 電子管陰極
JP1-262368 1989-10-06

Publications (2)

Publication Number Publication Date
KR910008766A true KR910008766A (ko) 1991-05-31
KR940009756B1 KR940009756B1 (ko) 1994-10-17

Family

ID=17374773

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019900007760A KR940009756B1 (ko) 1989-10-06 1990-05-29 전자관 음극

Country Status (4)

Country Link
EP (1) EP0421372B1 (ko)
JP (1) JPH0828183B2 (ko)
KR (1) KR940009756B1 (ko)
DE (1) DE69012494T2 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR930003229Y1 (ko) * 1991-04-30 1993-06-03 주식회사 금성사 방열형 음극선관용 전자총의 히터 구조
KR100449759B1 (ko) * 2002-03-21 2004-09-22 삼성에스디아이 주식회사 전자관용 음극 및 그 제조방법

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2726178A (en) * 1950-11-17 1955-12-06 Rca Corp Thermionic cathode with thoria coating
US4411827A (en) * 1981-03-18 1983-10-25 Corneille David M Coprecipitation process for thermionic cathode type materials
KR900007751B1 (ko) * 1985-05-25 1990-10-19 미쯔비시덴끼 가부시기가이샤 전자관 음극 및 그 제조방법
JPS6222347A (ja) * 1985-07-19 1987-01-30 Mitsubishi Electric Corp 電子管用陰極
JPH0690907B2 (ja) * 1988-02-02 1994-11-14 三菱電機株式会社 電子管用陰極

Also Published As

Publication number Publication date
DE69012494D1 (de) 1994-10-20
JPH03127427A (ja) 1991-05-30
EP0421372B1 (en) 1994-09-14
EP0421372A3 (en) 1991-11-21
KR940009756B1 (ko) 1994-10-17
JPH0828183B2 (ja) 1996-03-21
EP0421372A2 (en) 1991-04-10
DE69012494T2 (de) 1995-01-26

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