KR950006899A - Oxide cathode for electron tube - Google Patents

Oxide cathode for electron tube Download PDF

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Publication number
KR950006899A
KR950006899A KR1019930016313A KR930016313A KR950006899A KR 950006899 A KR950006899 A KR 950006899A KR 1019930016313 A KR1019930016313 A KR 1019930016313A KR 930016313 A KR930016313 A KR 930016313A KR 950006899 A KR950006899 A KR 950006899A
Authority
KR
South Korea
Prior art keywords
oxide cathode
metal gas
electron
electron tube
oxide
Prior art date
Application number
KR1019930016313A
Other languages
Korean (ko)
Inventor
최귀석
최종서
손경천
주규남
이상원
Original Assignee
박경팔
삼성전관 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
Application filed by 박경팔, 삼성전관 주식회사 filed Critical 박경팔
Priority to KR1019930016313A priority Critical patent/KR950006899A/en
Priority to JP31516193A priority patent/JPH0765695A/en
Publication of KR950006899A publication Critical patent/KR950006899A/en

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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

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  • Solid Thermionic Cathode (AREA)

Abstract

본 발명은 전자관의 전자총에 사용되는 산화물 음극에 관한 것으로서, 금속기체, 그의 상부에 형성되는 적어도 바륨을 함유하는 전자방출물질층, 및 이를 가열하는 수단을 구비하는 산화물 음극에 있어서, 상기 금속기체의 히이터쪽 면에 금속기체 중 환원제의 확산방지층을 바람직하게는 알루미늄 코팅으로 형성시킨 산화물 음극은, 수명 개선 효과가 크므로 매우 실용적인 산화물 음극이다.The present invention relates to an oxide cathode used for an electron gun of an electron tube, comprising: a metal gas, an electron-emitting material layer containing at least barium formed thereon, and an oxide cathode including a means for heating the same. The oxide cathode in which the diffusion preventing layer of the reducing agent in the metal gas is preferably formed of an aluminum coating on the heater side is a very practical oxide cathode because of its long life improvement effect.

Description

전자관용 산화물 음극Oxide cathode for electron tube

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 산화물 음극의 구조를 보여주는 모식 단면도.1 is a schematic cross-sectional view showing the structure of a conventional oxide cathode.

제2도는 본 발명의 산화물 음극의 구조를 보여주는 모식단면도이고,2 is a schematic cross-sectional view showing the structure of the oxide cathode of the present invention,

제3도는 본 발명의 산화물 음극과 종래의 산화물 음극의 시간 경과에 따른 MIK 값의 변화를 나타낸 그래프이다.3 is a graph showing a change in MIK value over time of the oxide cathode of the present invention and the conventional oxide cathode.

Claims (3)

금속기체, 그의 상부에 형성되는 적어도 바륨을 함유하는 전자방출물질층, 및 이를 가열하는 수단을 구비하는 산화물 음극에 있어서, 상기 금속기체의 히이터쪽 면에 금속기체 중 환원제의 확산방지층이 형성된 것을 특징으로 하는 산화물 음극.An oxide cathode comprising a metal gas, an electron-emitting material layer containing at least barium formed thereon, and a means for heating the same, wherein the diffusion preventing layer of the reducing agent in the metal gas is formed on the heater side of the metal gas. Oxide cathode. 제1항에 있어서, 상기 금속기체가 니켈을 주성분으로 하여 형성되는 것이고, 상기 확산방지층이 알루미늄으로 형성되는 것을 특징으로 하는 산화물 음극.The oxide cathode of claim 1, wherein the metal gas is formed of nickel as a main component, and the diffusion barrier layer is formed of aluminum. 제1항 또는 제2항에 있어서, 상기 확산방지층이 두께가 500 내지 10,000Å인 것을 특징으로 하는 산화물 음극.The oxide cathode according to claim 1 or 2, wherein the diffusion barrier layer has a thickness of 500 to 10,000 kPa. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930016313A 1993-08-21 1993-08-21 Oxide cathode for electron tube KR950006899A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019930016313A KR950006899A (en) 1993-08-21 1993-08-21 Oxide cathode for electron tube
JP31516193A JPH0765695A (en) 1993-08-21 1993-12-15 Oxide cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930016313A KR950006899A (en) 1993-08-21 1993-08-21 Oxide cathode for electron tube

Publications (1)

Publication Number Publication Date
KR950006899A true KR950006899A (en) 1995-03-21

Family

ID=19361729

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930016313A KR950006899A (en) 1993-08-21 1993-08-21 Oxide cathode for electron tube

Country Status (2)

Country Link
JP (1) JPH0765695A (en)
KR (1) KR950006899A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10011659A1 (en) 1999-06-21 2001-03-15 Nsk Ltd Lubricating device has non-return valve in channel for delivering lubricant to pump to prevent lubricant from running out of pump, nozzle with cross-section smaller than that of valve

Also Published As

Publication number Publication date
JPH0765695A (en) 1995-03-10

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