JPS63182451U - - Google Patents
Info
- Publication number
- JPS63182451U JPS63182451U JP7423387U JP7423387U JPS63182451U JP S63182451 U JPS63182451 U JP S63182451U JP 7423387 U JP7423387 U JP 7423387U JP 7423387 U JP7423387 U JP 7423387U JP S63182451 U JPS63182451 U JP S63182451U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- annular
- annular permanent
- coaxially
- coil
- 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
Links
- 238000010894 electron beam technology Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 description 1
Description
第１図はこの考案による磁気回路の縦断説明図
である。第２図は磁気回路の空隙位置と磁束密度
との関係を示すグラフである。第３図は従来の磁
気回路の縦断説明図である。
１……環状永久磁石、２……ＣＲＴネツク部、
３……環状直流コイル、４……ポールピース、５
……回路構成体、５ａ……凹み、５ｂ……円筒部
、６……反転磁界消去用コイル、７……押え部材
、８……空隙。
FIG. 1 is a longitudinal sectional view of the magnetic circuit according to this invention. FIG. 2 is a graph showing the relationship between the gap position of the magnetic circuit and the magnetic flux density. FIG. 3 is a longitudinal cross-sectional view of a conventional magnetic circuit. 1... Annular permanent magnet, 2... CRT network part,
3... Annular DC coil, 4... Pole piece, 5
. . . Circuit component, 5a . . . Recess, 5b .
Claims (1)
久磁石、あるいは前記環状永久磁石とその内周側
に磁界強度微調整用の環状直流コイルを同軸配置
した構成からなる電子ビーム集束用磁気回路にお
いて、 環状永久磁石の両側の近傍位置に、反転磁界消
去用の環状直流コイルを同軸配置したことを特徴
とする電子ビーム集束用磁気回路。[Claims for Utility Model Registration] Consisting of an annular permanent magnet with a pair of pole pieces attached to both end faces, or a structure in which the annular permanent magnet and an annular DC coil for finely adjusting magnetic field strength are arranged coaxially on the inner circumferential side of the annular permanent magnet. A magnetic circuit for electron beam focusing, characterized in that annular DC coils for erasing reversal magnetic fields are coaxially arranged near both sides of an annular permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7423387U JPS63182451U (en) | 1987-05-18 | 1987-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7423387U JPS63182451U (en) | 1987-05-18 | 1987-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63182451U true JPS63182451U (en) | 1988-11-24 |
Family
ID=30919259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7423387U Pending JPS63182451U (en) | 1987-05-18 | 1987-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63182451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03201348A (en) * | 1989-12-26 | 1991-09-03 | Mitsubishi Electric Corp | Focus magnet assembly |
-
1987
- 1987-05-18 JP JP7423387U patent/JPS63182451U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03201348A (en) * | 1989-12-26 | 1991-09-03 | Mitsubishi Electric Corp | Focus magnet assembly |
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