JPS5588250A - Electron beam convergence device - Google Patents

Electron beam convergence device

Info

Publication number
JPS5588250A
JPS5588250A JP16339878A JP16339878A JPS5588250A JP S5588250 A JPS5588250 A JP S5588250A JP 16339878 A JP16339878 A JP 16339878A JP 16339878 A JP16339878 A JP 16339878A JP S5588250 A JPS5588250 A JP S5588250A
Authority
JP
Japan
Prior art keywords
convergence device
scanning beam
magnetic
vertical
cathode
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
JP16339878A
Other languages
Japanese (ja)
Inventor
Matsuo Ochi
Teruo Kataoka
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 Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP16339878A priority Critical patent/JPS5588250A/en
Publication of JPS5588250A publication Critical patent/JPS5588250A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To stably obtain longitudinal spots by setting up a magnetic body at the weak leakage magnetic field of the neck section between the electromagnetic convergence device of a blue image tube and its cathode.
CONSTITUTION: A pair of magnetic bodies 11 retained by the magnetic fixtures 10 at the neck section 8 between the cathode 2 of the image tube 1 and its electromagnetic convergence device 4 face each other on both sides of the scanning beam on the plane which is vertical to the axis of the scanning beam 3. The magnetic bodies 11 are output from the electromagnetic convergence device 4 with permanent magnets and screens the vertical leakage magnetic flux against the scanning beam 3. This permits the horizontal and vertical leakage magnetic flux density to be ununiformalized at the position of these magnetic bodies 11 against the procession direction of the scanning beam 3.
COPYRIGHT: (C)1980,JPO&Japio
JP16339878A 1978-12-27 1978-12-27 Electron beam convergence device Pending JPS5588250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16339878A JPS5588250A (en) 1978-12-27 1978-12-27 Electron beam convergence device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16339878A JPS5588250A (en) 1978-12-27 1978-12-27 Electron beam convergence device

Publications (1)

Publication Number Publication Date
JPS5588250A true JPS5588250A (en) 1980-07-03

Family

ID=15773127

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16339878A Pending JPS5588250A (en) 1978-12-27 1978-12-27 Electron beam convergence device

Country Status (1)

Country Link
JP (1) JPS5588250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006156979A (en) * 2004-10-27 2006-06-15 Brother Ind Ltd Electronic part loading substrate, heat transfer member for electronic part loading substrate, and liquid injection head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006156979A (en) * 2004-10-27 2006-06-15 Brother Ind Ltd Electronic part loading substrate, heat transfer member for electronic part loading substrate, and liquid injection head

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