JPS573350A - Cathode-ray tube device - Google Patents

Cathode-ray tube device

Info

Publication number
JPS573350A
JPS573350A JP7700080A JP7700080A JPS573350A JP S573350 A JPS573350 A JP S573350A JP 7700080 A JP7700080 A JP 7700080A JP 7700080 A JP7700080 A JP 7700080A JP S573350 A JPS573350 A JP S573350A
Authority
JP
Japan
Prior art keywords
electromagnet
deflection
tetrode
corrected
bent
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
JP7700080A
Other languages
Japanese (ja)
Other versions
JPS6330733B2 (en
Inventor
Shigeya Ashizaki
Toshio Kuramoto
Masamichi Kimura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP7700080A priority Critical patent/JPS573350A/en
Publication of JPS573350A publication Critical patent/JPS573350A/en
Publication of JPS6330733B2 publication Critical patent/JPS6330733B2/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
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • H01J29/563—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses for controlling cross-section

Abstract

PURPOSE:To make a beam spot small in diameter and round in all regions and improve resolution by forming a tetrode magnetic field lens which changes its intensity depending on the deflection between an electron gun and a deflection yoke. CONSTITUTION:A tetrode magnetic pole 5 is provided at the intra-tube section between an electron gun 3 and a deflection yoke 4 and excited by an electromagnet 6 which is provided outside the tube. When proper current is applied to the coil 20 of the electromagnet 6, an electron beam is bent in a vertically long cross-sectional shape and horizontal deflection distortion can be corrected. When proper current is also applied to the coil 24 of the electromagnet 6, the electron beam is bent in a horizontally long cross-sectional shape and vertical deflection distortion can be corrected.
JP7700080A 1980-06-06 1980-06-06 Cathode-ray tube device Granted JPS573350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7700080A JPS573350A (en) 1980-06-06 1980-06-06 Cathode-ray tube device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7700080A JPS573350A (en) 1980-06-06 1980-06-06 Cathode-ray tube device

Publications (2)

Publication Number Publication Date
JPS573350A true JPS573350A (en) 1982-01-08
JPS6330733B2 JPS6330733B2 (en) 1988-06-20

Family

ID=13621496

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7700080A Granted JPS573350A (en) 1980-06-06 1980-06-06 Cathode-ray tube device

Country Status (1)

Country Link
JP (1) JPS573350A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530379A1 (en) * 1982-07-16 1984-01-20 Videocolor System of electron guns for a television cathode-ray tube.
JPS62126529A (en) * 1985-11-26 1987-06-08 Nec Corp Inline type color picture tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2530379A1 (en) * 1982-07-16 1984-01-20 Videocolor System of electron guns for a television cathode-ray tube.
JPS62126529A (en) * 1985-11-26 1987-06-08 Nec Corp Inline type color picture tube

Also Published As

Publication number Publication date
JPS6330733B2 (en) 1988-06-20

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