JPS6131481Y2 - - Google Patents
Info
- Publication number
- JPS6131481Y2 JPS6131481Y2 JP16702981U JP16702981U JPS6131481Y2 JP S6131481 Y2 JPS6131481 Y2 JP S6131481Y2 JP 16702981 U JP16702981 U JP 16702981U JP 16702981 U JP16702981 U JP 16702981U JP S6131481 Y2 JPS6131481 Y2 JP S6131481Y2
- Authority
- JP
- Japan
- Prior art keywords
- main lens
- grid
- holes
- electron gun
- electric field
- 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.)
- Expired
Links
- 230000005684 electric field Effects 0.000 claims description 15
- 238000010894 electron beam technology Methods 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 2
- 201000009310 astigmatism Diseases 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16702981U JPS6131481Y2 (cs) | 1981-11-11 | 1981-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16702981U JPS6131481Y2 (cs) | 1981-11-11 | 1981-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5795755U JPS5795755U (cs) | 1982-06-12 |
| JPS6131481Y2 true JPS6131481Y2 (cs) | 1986-09-12 |
Family
ID=29525675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16702981U Expired JPS6131481Y2 (cs) | 1981-11-11 | 1981-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131481Y2 (cs) |
-
1981
- 1981-11-11 JP JP16702981U patent/JPS6131481Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5795755U (cs) | 1982-06-12 |
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