JPS5671259A - Electron gun mechanism - Google Patents

Electron gun mechanism

Info

Publication number
JPS5671259A
JPS5671259A JP14764079A JP14764079A JPS5671259A JP S5671259 A JPS5671259 A JP S5671259A JP 14764079 A JP14764079 A JP 14764079A JP 14764079 A JP14764079 A JP 14764079A JP S5671259 A JPS5671259 A JP S5671259A
Authority
JP
Japan
Prior art keywords
electron lens
changes
grids
grid
holds
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
JP14764079A
Other languages
Japanese (ja)
Inventor
Shigeo Takenaka
Eiji Kanbara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14764079A priority Critical patent/JPS5671259A/en
Publication of JPS5671259A publication Critical patent/JPS5671259A/en
Pending 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
    • H01J29/485—Construction of the gun or of parts thereof

Abstract

PURPOSE:To prevent changes in the focus characteristics due to leak current between electrodes by providing the means of offsetting changes in focusing effect resulting from the main electron lens and the auxiliary electron lens when voltage of the common electrode fluctuates. CONSTITUTION:An electron gun mechanism 1 of a color picture tube, or the like holds an insulating material 21, and a pair of supporting mechanism 2 composed of glass resistors 2a installed on one part of it holds cathodes 3-5, the first-sixth grids 6-11 and a convergence electrode 12. It is formed so that changes in focusing effect due to the main electron lens and the auxiliary electron lens are almost offset by adjusting at least one of either the length of the electrode of said each grid or the distance between each grid and the diameters of the electron lenses. In consequence, even though there is a leak current that does not flow through the glass resistors 2a between the fifth and sixth grids 10, 11, without greatly changing the focusing condition of the electronic beams, the stable focusing condition can be obtained.
JP14764079A 1979-11-16 1979-11-16 Electron gun mechanism Pending JPS5671259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14764079A JPS5671259A (en) 1979-11-16 1979-11-16 Electron gun mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14764079A JPS5671259A (en) 1979-11-16 1979-11-16 Electron gun mechanism

Publications (1)

Publication Number Publication Date
JPS5671259A true JPS5671259A (en) 1981-06-13

Family

ID=15434899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14764079A Pending JPS5671259A (en) 1979-11-16 1979-11-16 Electron gun mechanism

Country Status (1)

Country Link
JP (1) JPS5671259A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389360A (en) * 1977-01-17 1978-08-05 Sony Corp Electronic gun constituent

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389360A (en) * 1977-01-17 1978-08-05 Sony Corp Electronic gun constituent

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