JPS5717535A - Electron gun constituent - Google Patents

Electron gun constituent

Info

Publication number
JPS5717535A
JPS5717535A JP7486081A JP7486081A JPS5717535A JP S5717535 A JPS5717535 A JP S5717535A JP 7486081 A JP7486081 A JP 7486081A JP 7486081 A JP7486081 A JP 7486081A JP S5717535 A JPS5717535 A JP S5717535A
Authority
JP
Japan
Prior art keywords
radiation surface
electron radiation
edge
grid electrode
insulated
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
JP7486081A
Other versions
JPS5759615B2 (en
Inventor
Yoshimitsu Anezaki
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP7486081A priority Critical patent/JPS5759615B2/ja
Publication of JPS5717535A publication Critical patent/JPS5717535A/en
Publication of JPS5759615B2 publication Critical patent/JPS5759615B2/ja
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00Details 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
    • H01J1/02Main electrodes
    • H01J1/13Solid thermionic cathodes
    • H01J1/20Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Abstract

PURPOSE:To prevent the metallic evaporated substance which is sputtered from an electron radiation surface from getting to insulated articles by enclosing the surroundings of a cylindrical cathode with a shielding body, preventing the electron radiation surface from being seen from the edge of the shielding body. CONSTITUTION:The cathode sleeve 20 on which an electron radiation surface 11 is installed is constituted so as to have a larger diameter in the vicinity of the opened edge, and a cylindrical metal shield 21 is installed in the direction of the first grid electrode 2 from the opened edge. The cylindrical metal shield 21 is made sharp at its top edge 22, and is set opposed to the first grid electrode 2, in the outer side from the bead area 13 of the first grid electrode 2, keeping the smaller distance than the opposition distance between the first grid 2 and the electron radiation surface 11. The shield 21 is supported onto an insulated body 8 by a support 23. Thus, the insulated body can be prevented from being coated with the metal evaporated from the electron radiation surface.
JP7486081A 1981-05-20 1981-05-20 Expired JPS5759615B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7486081A JPS5759615B2 (en) 1981-05-20 1981-05-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7486081A JPS5759615B2 (en) 1981-05-20 1981-05-20

Publications (2)

Publication Number Publication Date
JPS5717535A true JPS5717535A (en) 1982-01-29
JPS5759615B2 JPS5759615B2 (en) 1982-12-15

Family

ID=13559494

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7486081A Expired JPS5759615B2 (en) 1981-05-20 1981-05-20

Country Status (1)

Country Link
JP (1) JPS5759615B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6255851U (en) * 1985-09-28 1987-04-07
EP0373511A2 (en) * 1988-12-16 1990-06-20 Kabushiki Kaisha Toshiba Indirectly heated cathode assembly.
US5396147A (en) * 1992-05-12 1995-03-07 Goldstar Co., Ltd. Cathode heater structure of an electric gun for a cathode-ray tube and method of assembling the heaters
JP2011072551A (en) * 2009-09-30 2011-04-14 Sugatsune Kogyo Co Ltd Device for mounting shelf board receiver and shelf post

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0318568B2 (en) * 1984-03-15 1991-03-12 Toyo Tire & Rubber Co

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6255851U (en) * 1985-09-28 1987-04-07
JPH0512909Y2 (en) * 1985-09-28 1993-04-05
EP0373511A2 (en) * 1988-12-16 1990-06-20 Kabushiki Kaisha Toshiba Indirectly heated cathode assembly.
US5396147A (en) * 1992-05-12 1995-03-07 Goldstar Co., Ltd. Cathode heater structure of an electric gun for a cathode-ray tube and method of assembling the heaters
JP2011072551A (en) * 2009-09-30 2011-04-14 Sugatsune Kogyo Co Ltd Device for mounting shelf board receiver and shelf post

Also Published As

Publication number Publication date
JPS5759615B2 (en) 1982-12-15

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