JPS5734633A - Electron gun structure - Google Patents

Electron gun structure

Info

Publication number
JPS5734633A
JPS5734633A JP11008480A JP11008480A JPS5734633A JP S5734633 A JPS5734633 A JP S5734633A JP 11008480 A JP11008480 A JP 11008480A JP 11008480 A JP11008480 A JP 11008480A JP S5734633 A JPS5734633 A JP S5734633A
Authority
JP
Japan
Prior art keywords
cathode
assembly
retainer
welded
fixed
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
JP11008480A
Other languages
Japanese (ja)
Inventor
Takeshi Watanabe
Masashi Noguchi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11008480A priority Critical patent/JPS5734633A/en
Publication of JPS5734633A publication Critical patent/JPS5734633A/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
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE:To improve accuracy of assembly, by fixing a cathode eyelet supporter and a cathode insulator stone to the retainer into an unit assembly and fitting this assembly into a cup shape space in the control electrode and fix it there. CONSTITUTION:A cathode insulator 16 formed by sintering and molding alumia ceramics with high purity is inserted into a cup-shape space in retainer 18, further a cathode support 17 made of hermetic material and provided with a cathode eyelet support 6 is also inserted in this space and fixed, thus a retainer assembly 19 is built up, subsequently, cathode 5 is welded and fixed to the cathode eyelet support 7 so that the interval between the electron radiation layer 15 and control electrode 1 may be set to the prescribed value in reference to the surface 16a on which cathode insulator stone 16 touches the internal surface of the control electrode 1. And then, the retainer assembly 19 to which cathode 5 is welded is inserted the cup shape space in electrode 1 and the surface 16a is arranged to touch the internal surface of electrode 1 and welded to be fixed there. The accuracy of assembly can be improved through the above constitution.
JP11008480A 1980-08-11 1980-08-11 Electron gun structure Pending JPS5734633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11008480A JPS5734633A (en) 1980-08-11 1980-08-11 Electron gun structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11008480A JPS5734633A (en) 1980-08-11 1980-08-11 Electron gun structure

Publications (1)

Publication Number Publication Date
JPS5734633A true JPS5734633A (en) 1982-02-25

Family

ID=14526617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11008480A Pending JPS5734633A (en) 1980-08-11 1980-08-11 Electron gun structure

Country Status (1)

Country Link
JP (1) JPS5734633A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6319747U (en) * 1986-07-17 1988-02-09
US4882783A (en) * 1986-06-09 1989-11-21 Gse Electronic Systems, Inc. Pre-recorded magnetic video tape having an information code on the synchronization track
US5229890A (en) * 1989-07-07 1993-07-20 Victor Company Of Japan, Ltd. Data recording system for use in video tape recorder
US8200071B1 (en) 1996-10-08 2012-06-12 Thomson Licensing Digital recorder with trick play operation

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4882783A (en) * 1986-06-09 1989-11-21 Gse Electronic Systems, Inc. Pre-recorded magnetic video tape having an information code on the synchronization track
JPS6319747U (en) * 1986-07-17 1988-02-09
US5229890A (en) * 1989-07-07 1993-07-20 Victor Company Of Japan, Ltd. Data recording system for use in video tape recorder
US8200071B1 (en) 1996-10-08 2012-06-12 Thomson Licensing Digital recorder with trick play operation

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