JPH01115143U - - Google Patents
Info
- Publication number
- JPH01115143U JPH01115143U JP1208188U JP1208188U JPH01115143U JP H01115143 U JPH01115143 U JP H01115143U JP 1208188 U JP1208188 U JP 1208188U JP 1208188 U JP1208188 U JP 1208188U JP H01115143 U JPH01115143 U JP H01115143U
- Authority
- JP
- Japan
- Prior art keywords
- filament
- directly heated
- heated cathode
- shaped groove
- insulating substrate
- 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
- 239000000463 material Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
Landscapes
- Solid Thermionic Cathode (AREA)
- Electron Sources, Ion Sources (AREA)
Description
第１図は、本考案に係る直熱型陰極の側面図、
第２図は、第１図の上面図、第３図は、本考案の
他の実施例の上面図、第４図は、従来の直熱型陰
極を使用した電子銃要部の縦断面図、第５図は、
第４図のＡ―Ａ線に沿う断面図、第６図は、他の
従来の直熱型陰極の側面図である。
２１…絶縁基板、２２…支持棒、２３…Ｕ字状
の溝、２４…フイラメント、２５…エミツタ物質
。
FIG. 1 is a side view of a directly heated cathode according to the present invention;
FIG. 2 is a top view of FIG. 1, FIG. 3 is a top view of another embodiment of the present invention, and FIG. 4 is a longitudinal sectional view of the main parts of an electron gun using a conventional directly heated cathode. , Figure 5 is
FIG. 4 is a sectional view taken along line AA, and FIG. 6 is a side view of another conventional directly heated cathode. 21... Insulating substrate, 22... Support rod, 23... U-shaped groove, 24... Filament, 25... Emitter material.
Claims (1)
メントを張設し、その中央部にエミツタ物質を被
着したものにおいて、支持棒先端に、Ｕ字状の溝
を形成し、この溝の底部で、フイラメントの端部
を固定したことを特徴とする直熱型陰極。 A filament is stretched between two support rods embedded in an insulating substrate, and an emitter material is applied to the center of the filament, and a U-shaped groove is formed at the tip of the support rod. A directly heated cathode characterized by having the filament end fixed at the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208188U JPH01115143U (en) | 1988-01-29 | 1988-01-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1208188U JPH01115143U (en) | 1988-01-29 | 1988-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01115143U true JPH01115143U (en) | 1989-08-02 |
Family
ID=31221206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1208188U Pending JPH01115143U (en) | 1988-01-29 | 1988-01-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01115143U (en) |
-
1988
- 1988-01-29 JP JP1208188U patent/JPH01115143U/ja active Pending