JPS5782946A - Electron gun structure for cathode ray tube - Google Patents

Electron gun structure for cathode ray tube

Info

Publication number
JPS5782946A
JPS5782946A JP15828280A JP15828280A JPS5782946A JP S5782946 A JPS5782946 A JP S5782946A JP 15828280 A JP15828280 A JP 15828280A JP 15828280 A JP15828280 A JP 15828280A JP S5782946 A JPS5782946 A JP S5782946A
Authority
JP
Japan
Prior art keywords
electrode
glass
conductor
neck tube
wall
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.)
Granted
Application number
JP15828280A
Other languages
Japanese (ja)
Other versions
JPH041985B2 (en
Inventor
Noboru Toyama
Kazuhiro Yamagishi
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 JP15828280A priority Critical patent/JPS5782946A/en
Publication of JPS5782946A publication Critical patent/JPS5782946A/en
Publication of JPH041985B2 publication Critical patent/JPH041985B2/ja
Granted legal-status Critical Current

Links

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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes

Abstract

PURPOSE:To improve the voltage withstandability by providing a conductor extending to the proximity of the other electrode on one of a high potential electrode or low potential electrode thereby suppressing the cold electron emission to the bead glass and the inner wall of a neck tube and preventing the generation of the in-tube discharge. CONSTITUTION:A conductor 12 made of stainless steel rod having one end secured through the welding and another end extending to the proximity of G2 electrode 7 and G3 electrode 6 across which the low voltage is applied is arranged on a bead support of an electrode 5 not shown having one end burried in a bead glass 10 for holding the electrode arranged in the bulb neck tube of CRT to predetermined position and the other end weded to the outer face of G4 electrode 5 to be applied with high potential. Here the conductor 12 is positioned at the space section between the glass 10 and the inner wall face of the neck tube along said glass 10. With such structure the discharge is produced between the tip section of the conductor 12 and G1 electrode 8, electrode 7 during the spot nocking to eliminate the minute projection on the electrodes 8, 7 thus to prevent the cold electron emission to the glass 10 and the inner wall of the neck tube.
JP15828280A 1980-11-12 1980-11-12 Electron gun structure for cathode ray tube Granted JPS5782946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15828280A JPS5782946A (en) 1980-11-12 1980-11-12 Electron gun structure for cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15828280A JPS5782946A (en) 1980-11-12 1980-11-12 Electron gun structure for cathode ray tube

Publications (2)

Publication Number Publication Date
JPS5782946A true JPS5782946A (en) 1982-05-24
JPH041985B2 JPH041985B2 (en) 1992-01-16

Family

ID=15668184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15828280A Granted JPS5782946A (en) 1980-11-12 1980-11-12 Electron gun structure for cathode ray tube

Country Status (1)

Country Link
JP (1) JPS5782946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63198239A (en) * 1987-02-12 1988-08-16 Hitachi Ltd Electron gun structure body for cathode-ray tube

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113055U (en) * 1977-02-17 1978-09-08
JPS53126465U (en) * 1977-03-09 1978-10-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53113055U (en) * 1977-02-17 1978-09-08
JPS53126465U (en) * 1977-03-09 1978-10-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63198239A (en) * 1987-02-12 1988-08-16 Hitachi Ltd Electron gun structure body for cathode-ray tube

Also Published As

Publication number Publication date
JPH041985B2 (en) 1992-01-16

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