JPH02143U - - Google Patents
Info
- Publication number
- JPH02143U JPH02143U JP7875588U JP7875588U JPH02143U JP H02143 U JPH02143 U JP H02143U JP 7875588 U JP7875588 U JP 7875588U JP 7875588 U JP7875588 U JP 7875588U JP H02143 U JPH02143 U JP H02143U
- Authority
- JP
- Japan
- Prior art keywords
- auxiliary part
- emitter auxiliary
- directly heated
- heated cathode
- tape
- 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
- 239000002184 metal Substances 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- 239000012212 insulator Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Solid Thermionic Cathode (AREA)
Description
第１図と第２図は本考案に係る直熱型カソード
の各実施例を示すその電子放射部の各側断面図、
第３図は本考案に係るテープ状ヒータの一具体例
を示す平面図、第４図と第５図は直熱型カソード
の一従来例を示す側断面図とそのＡ−Ａ線平断面
図、第６図と第７図は第４図と第５図の直熱型カ
ソードに含まれる電子放射部の側断面図と平面図
である。
１６…ヒータ、１７，２１…電子放射部、１８
，２２…エミツタ主要部、１９…金属成分、２０
，２３…エミツタ補助部。
1 and 2 are side sectional views of the electron emitting part showing each embodiment of the directly heated cathode according to the present invention,
FIG. 3 is a plan view showing a specific example of a tape-shaped heater according to the present invention, and FIGS. 4 and 5 are a side sectional view and a plane sectional view taken along the line A-A of a conventional example of a directly heated cathode. , FIG. 6 and FIG. 7 are a side sectional view and a plan view of the electron emitting part included in the directly heated cathode of FIGS. 4 and 5. 16... Heater, 17, 21... Electron radiation section, 18
, 22... Emitter main part, 19... Metal component, 20
, 23... Emitsuta auxiliary part.
Claims (1)
をインシユレータ上に張設支持したものにおいて
、 上記電子放射部は、炭酸塩を熱分解したエミツ
タ主要部と、間接的に電子放射に寄与する金属成
分を含有する炭酸塩を熱分解したエミツタ補助部
とを積層状又は同心環状に隣接して被着・形成し
たことを特徴とする直熱型カソード。[Claims for Utility Model Registration] A tape-shaped heater with an electron emitting part formed in the center is stretched and supported on an insulator. 1. A directly heated cathode characterized in that an emitter auxiliary part made of thermally decomposed carbonate containing a metal component that contributes to electron emission is adhered and formed adjacent to the emitter auxiliary part in a laminated form or in a concentric ring form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7875588U JPH02143U (en) | 1988-06-13 | 1988-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7875588U JPH02143U (en) | 1988-06-13 | 1988-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02143U true JPH02143U (en) | 1990-01-05 |
Family
ID=31303655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7875588U Pending JPH02143U (en) | 1988-06-13 | 1988-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02143U (en) |
-
1988
- 1988-06-13 JP JP7875588U patent/JPH02143U/ja active Pending