JPS5673833A - Structure of cathode of electron tube - Google Patents

Structure of cathode of electron tube

Info

Publication number
JPS5673833A
JPS5673833A JP15006979A JP15006979A JPS5673833A JP S5673833 A JPS5673833 A JP S5673833A JP 15006979 A JP15006979 A JP 15006979A JP 15006979 A JP15006979 A JP 15006979A JP S5673833 A JPS5673833 A JP S5673833A
Authority
JP
Japan
Prior art keywords
spacer
shielding part
cathode
electron tube
shape
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.)
Pending
Application number
JP15006979A
Other languages
Japanese (ja)
Inventor
Mamoru Kurokuzuhara
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15006979A priority Critical patent/JPS5673833A/en
Priority to US06/188,507 priority patent/US4558250A/en
Publication of JPS5673833A publication Critical patent/JPS5673833A/en
Pending 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/18—Supports; Vibration-damping arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/04—Cathodes
    • H01J23/05—Cathodes having a cylindrical emissive surface, e.g. cathodes for magnetrons

Abstract

PURPOSE:To raise certainly the vibration proof effect of the spacer of an electron tube by arranging the spacer in the shielding part of the electron tube. CONSTITUTION:A spacer 11 is arranged in a shielding part 8, and inscribes its periphery in the shielding part 8. Thereby, becoming a fixed spacer to the shielding part 8, the spacer 11 can absorb larger energy at the time of vibrating, and then, a more powerful vibration proof effect is obtained. Because the spacer 11 itself influences the action of a magnetron as the structural thing of the cathode of the magnetron, the shape of the spacer 11 is formed as a shape which is notched on three positions of its periphery or a shape which is cut its both sides. Thereby, the quantity of counter heating, which is caused by the collision of thermion with the filament 1 of the cathode, and the like, can be controlled.
JP15006979A 1979-10-19 1979-11-21 Structure of cathode of electron tube Pending JPS5673833A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP15006979A JPS5673833A (en) 1979-11-21 1979-11-21 Structure of cathode of electron tube
US06/188,507 US4558250A (en) 1979-10-19 1980-09-18 Cathode structure of electron tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15006979A JPS5673833A (en) 1979-11-21 1979-11-21 Structure of cathode of electron tube

Publications (1)

Publication Number Publication Date
JPS5673833A true JPS5673833A (en) 1981-06-18

Family

ID=15488832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15006979A Pending JPS5673833A (en) 1979-10-19 1979-11-21 Structure of cathode of electron tube

Country Status (1)

Country Link
JP (1) JPS5673833A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234744U (en) * 1985-08-20 1987-02-28
JP2007117581A (en) * 2005-10-31 2007-05-17 Achilles Corp Irregular type laying mat and its manufacturing method
JP2011216489A (en) * 2010-03-31 2011-10-27 E2V Technologies (Uk) Ltd Magnetron

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234744U (en) * 1985-08-20 1987-02-28
JPH0412586Y2 (en) * 1985-08-20 1992-03-26
JP2007117581A (en) * 2005-10-31 2007-05-17 Achilles Corp Irregular type laying mat and its manufacturing method
JP2011216489A (en) * 2010-03-31 2011-10-27 E2V Technologies (Uk) Ltd Magnetron

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