JPH0348848U - - Google Patents
Info
- Publication number
- JPH0348848U JPH0348848U JP10901889U JP10901889U JPH0348848U JP H0348848 U JPH0348848 U JP H0348848U JP 10901889 U JP10901889 U JP 10901889U JP 10901889 U JP10901889 U JP 10901889U JP H0348848 U JPH0348848 U JP H0348848U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- ring
- electron lens
- spacer
- lens
- 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
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10901889U JPH0348848U (cs) | 1989-09-20 | 1989-09-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10901889U JPH0348848U (cs) | 1989-09-20 | 1989-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348848U true JPH0348848U (cs) | 1991-05-10 |
Family
ID=31657622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10901889U Pending JPH0348848U (cs) | 1989-09-20 | 1989-09-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348848U (cs) |
-
1989
- 1989-09-20 JP JP10901889U patent/JPH0348848U/ja active Pending
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