JPS55163754A - Yoke assembly for image pickup tube - Google Patents

Yoke assembly for image pickup tube

Info

Publication number
JPS55163754A
JPS55163754A JP7125879A JP7125879A JPS55163754A JP S55163754 A JPS55163754 A JP S55163754A JP 7125879 A JP7125879 A JP 7125879A JP 7125879 A JP7125879 A JP 7125879A JP S55163754 A JPS55163754 A JP S55163754A
Authority
JP
Japan
Prior art keywords
image pickup
yoke assembly
pickup tube
magnets
groove
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
JP7125879A
Other languages
Japanese (ja)
Other versions
JPS6256625B2 (en
Inventor
Hideyuki Sakai
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 JP7125879A priority Critical patent/JPS55163754A/en
Publication of JPS55163754A publication Critical patent/JPS55163754A/en
Publication of JPS6256625B2 publication Critical patent/JPS6256625B2/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
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

PURPOSE:To easily obtain precise registration and facilitate a yoke assembly by providing a minute permanent magnet at the arbitrary position on a circumference which encloses an image pickup tube in almost the same plane as the photoelectric film of the image pickup tube. CONSTITUTION:The conical narrow groove 5 is provided concentrically with the image pickup tube 2 on the front retention plate of the yoke assembly 1. A number of minute permanent magnets 6 are fit in this groove 5 and move along with the groove 5. The position of these magnets 6 move properly. By the weak compensating magnetic field 7 generated by the magnets, the distortion of the electron beam scanning trace caused by the minute magnetic distortion which is slightly left near the electron beam scanning area can be compensated and removed. This can easily obtain precise registration and facilitate fabrication of the yoke assembly.
JP7125879A 1979-06-08 1979-06-08 Yoke assembly for image pickup tube Granted JPS55163754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7125879A JPS55163754A (en) 1979-06-08 1979-06-08 Yoke assembly for image pickup tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7125879A JPS55163754A (en) 1979-06-08 1979-06-08 Yoke assembly for image pickup tube

Publications (2)

Publication Number Publication Date
JPS55163754A true JPS55163754A (en) 1980-12-20
JPS6256625B2 JPS6256625B2 (en) 1987-11-26

Family

ID=13455505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7125879A Granted JPS55163754A (en) 1979-06-08 1979-06-08 Yoke assembly for image pickup tube

Country Status (1)

Country Link
JP (1) JPS55163754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127461U (en) * 1981-02-03 1982-08-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127461U (en) * 1981-02-03 1982-08-09

Also Published As

Publication number Publication date
JPS6256625B2 (en) 1987-11-26

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