KR890001142A - 전자관 음극(cathode for an electron tube) - Google Patents

전자관 음극(cathode for an electron tube) Download PDF

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Publication number
KR890001142A
KR890001142A KR1019880006792A KR880006792A KR890001142A KR 890001142 A KR890001142 A KR 890001142A KR 1019880006792 A KR1019880006792 A KR 1019880006792A KR 880006792 A KR880006792 A KR 880006792A KR 890001142 A KR890001142 A KR 890001142A
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KR
South Korea
Prior art keywords
electron
cathode according
base metal
electron cathode
crystal
Prior art date
Application number
KR1019880006792A
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English (en)
Other versions
KR910002969B1 (ko
Inventor
엣지 기무라
히사오 나까니시
Original Assignee
시끼 모리야
미쓰비시전기 주식회사
나까노 다께시
미쓰비시 깅소꾸 주식회사
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
Priority claimed from JP14664487A external-priority patent/JPH0821308B2/ja
Priority claimed from JP14664387A external-priority patent/JPH0690906B2/ja
Application filed by 시끼 모리야, 미쓰비시전기 주식회사, 나까노 다께시, 미쓰비시 깅소꾸 주식회사 filed Critical 시끼 모리야
Publication of KR890001142A publication Critical patent/KR890001142A/ko
Application granted granted Critical
Publication of KR910002969B1 publication Critical patent/KR910002969B1/ko

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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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

내용 없음

Description

전자관 음극(cathode for an electron tube)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 3도는 본 발명의 1실시예에 의한 전자관음극의 개략단면도,
제 7도 상기 실시예에 의한 전자관음극의 일부단면 확대도.
제 8도는 본 발명의 다른 실시예에 의한 전자관음극의 일부단편 확대사시도.

Claims (7)

  1. Ni를 주성분으로하고 환원제로서 적어도 Si를 포함하는 기체금속(1)과, 상기 기체금속(1)상에 코팅되고, 적어도 Ba를 포함하는 알칼리토류 금속 산화물(8)만이 아니라 SC2O3를 포함하는 전자방사물질층(electronemissive layer)(5)을 구성하는 전자관음극에 있어서, 상기 SC2O3는 12면체결정(4a)으로 구성시키며 상기 전자방사물질층(5)내에서 0.1-20wt%의 범위로하여 분산시킴을 특징으로한 상기 전자관음극.
  2. 제 1항에 있어서, 상기 SC2O3의 12면체결정(4a)은 스칸듐(Sc)을 포함하는 염산용액에 암모늄옥살레이트를 첨가하여 침전(deposite)시킴으로써 형성됨을 특징으로한 상기 전자관음극.
  3. 제 2항에 있어서, 상기 SC2O3의 12면체결정(4a)는 잔류염소를 제거시키기 위하여 베어킹(baking)시킴을 특징으로한 상기 전자관음극.
  4. 제 1항에 있어서, 상기 SC2O3의 12면체결정(4a)은 평균입자직경이 5-50㎛의 범위를 가짐을 특징으로한 상기 전자관음극.
  5. Ni를 주성분으로하고 환원제로서 적어도 Si를 포함하는 기체금속(1)과, 상기 기체금속(1)상에 코팅하고 적어도 Ba를 함유한 알칼리토류 금속산화물(8)만이 아니라SC2O3를 포함하는 전자방사물질층(5)을 구성한 전자관음극에 있어서, 상기 SC2O3는 주상다면체결정(prismatic polyhedral cyrstals)(4b)으로 구성시키며 상기 전자방사물질층(5)내에서 0.1-20wt%의 범위로하여 분산시킴을 특징으로한 상기 전자관음극.
  6. 제 5항에 있어서, SC2O3는 주상다면체결정(4b)은 스칸듐을 포함하는 질산용액에 수산(oxalic acid)을 첨가하여 침전시킴으로써 형성됨을 특징으로한 상기 전자관음극.
  7. 제 5항에 있어서,SC2O3는 주상다면체결정(4b)은 평균입자직경이 5-50㎛의 범위를 가짐을 특징으로한 상기 전자관음극.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880006792A 1987-06-12 1988-06-07 전자관음극(cathode for an electron tube) KR910002969B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP?87-146643 1987-06-12
JP14664487A JPH0821308B2 (ja) 1987-06-12 1987-06-12 電子管陰極
JP14664387A JPH0690906B2 (ja) 1987-06-12 1987-06-12 電子管陰極
JP?87-146644 1987-06-12
JP62-146644 1987-06-12
JP62-146643 1987-06-12

Publications (2)

Publication Number Publication Date
KR890001142A true KR890001142A (ko) 1989-03-18
KR910002969B1 KR910002969B1 (ko) 1991-05-11

Family

ID=26477437

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880006792A KR910002969B1 (ko) 1987-06-12 1988-06-07 전자관음극(cathode for an electron tube)

Country Status (5)

Country Link
US (1) US4980603A (ko)
KR (1) KR910002969B1 (ko)
DE (1) DE3819852A1 (ko)
FR (1) FR2616586B1 (ko)
IN (1) IN171832B (ko)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0690907B2 (ja) * 1988-02-02 1994-11-14 三菱電機株式会社 電子管用陰極
NL8901076A (nl) * 1989-04-28 1990-11-16 Philips Nv Oxydekathode.
FR2667721B1 (fr) * 1990-10-05 1997-01-10 Hitachi Ltd Cathode pour tube electronique.
DE4142535A1 (de) * 1991-12-21 1993-06-24 Philips Patentverwaltung Scandat-kathode und verfahren zur ihrer herstellung
US6034469A (en) * 1995-06-09 2000-03-07 Kabushiki Kaisha Toshiba Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assembly
JP2876591B2 (ja) * 1996-11-29 1999-03-31 三菱電機株式会社 電子管用陰極
JP3696720B2 (ja) * 1997-07-09 2005-09-21 松下電器産業株式会社 含浸型陰極とその製造方法
JPH11102636A (ja) * 1997-09-26 1999-04-13 Matsushita Electron Corp 陰極、陰極の製造方法、受像管
JP2000357464A (ja) * 1999-06-14 2000-12-26 Hitachi Ltd 陰極線管
DE10045406A1 (de) * 2000-09-14 2002-03-28 Philips Corp Intellectual Pty Kathodenstrahlröhre mit dotierter Oxidkathode
FR2826505B1 (fr) * 2001-06-22 2005-04-29 Samsung Sdi Co Ltd Cathode pour tube electronique et procede de preparation de la cathode
US20020195919A1 (en) * 2001-06-22 2002-12-26 Choi Jong-Seo Cathode for electron tube and method of preparing the cathode
CN104766774A (zh) * 2015-04-16 2015-07-08 成都国光电气股份有限公司 一种阴极发射体
CN105679624B (zh) * 2016-03-03 2017-08-25 宁波凯耀电器制造有限公司 一种耐轰击的电子发射材料及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL165880C (nl) * 1975-02-21 1981-05-15 Philips Nv Naleveringskathode.
GB2012103B (en) * 1977-12-06 1982-05-12 Philips Nv Oxide cathode
NL8201371A (nl) * 1982-04-01 1983-11-01 Philips Nv Werkwijzen voor het vervaardigen van een naleveringskathode en naleveringskathode vervaardigd volgens deze werkwijzen.
NL8403031A (nl) * 1984-10-05 1986-05-01 Philips Nv Werkwijze voor het vervaardigen van een scandaatnaleveringskathode en scandaatnaleveringskathode vervaardigd volgens deze werkwijze.
KR900007751B1 (ko) * 1985-05-25 1990-10-19 미쯔비시덴끼 가부시기가이샤 전자관 음극 및 그 제조방법
JPS61271732A (ja) * 1985-05-25 1986-12-02 Mitsubishi Electric Corp 電子管陰極
JPS61269828A (ja) * 1985-05-25 1986-11-29 Mitsubishi Electric Corp 電子管陰極の製造方法
JPS6288239A (ja) * 1985-10-14 1987-04-22 Mitsubishi Electric Corp 電子管用陰極
JPS6222347A (ja) * 1985-07-19 1987-01-30 Mitsubishi Electric Corp 電子管用陰極
CA1270890A (en) * 1985-07-19 1990-06-26 Keiji Watanabe Cathode for electron tube

Also Published As

Publication number Publication date
KR910002969B1 (ko) 1991-05-11
FR2616586A1 (fr) 1988-12-16
DE3819852C2 (ko) 1992-10-29
IN171832B (ko) 1993-01-23
DE3819852A1 (de) 1988-12-22
FR2616586B1 (fr) 1990-08-24
US4980603A (en) 1990-12-25

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