JPH03118539U - - Google Patents
Info
- Publication number
- JPH03118539U JPH03118539U JP2698590U JP2698590U JPH03118539U JP H03118539 U JPH03118539 U JP H03118539U JP 2698590 U JP2698590 U JP 2698590U JP 2698590 U JP2698590 U JP 2698590U JP H03118539 U JPH03118539 U JP H03118539U
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- electron beam
- wehnelt electrode
- electron gun
- electron
- 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000010894 electron beam technology Methods 0.000 claims 2
Landscapes
- Microwave Tubes (AREA)
Description
第１図は本考案の第１の実施例の要部断面図、
第２図は本考案の第２の実施例の要部断面図であ
る。
１，１１……カソード、２……ウエネルト電極
、３，１３……アルミナコーテイング。
FIG. 1 is a sectional view of the main parts of the first embodiment of the present invention,
FIG. 2 is a sectional view of a main part of a second embodiment of the present invention. 1, 11... cathode, 2... Wehnelt electrode, 3, 13... alumina coating.
Claims (1)
を集束する為のウエネルト電極とを有するマイク
ロ波管用電子銃構体において、前記ウエネルト電
極の前記カソード外周に対向する面にアルミナコ
ーテイングを施したことを特徴とする電子銃構体
。 An electron gun assembly for a microwave tube having a cathode for emitting an electron beam and a Wehnelt electrode for focusing the electron beam, characterized in that alumina coating is applied to a surface of the Wehnelt electrode facing the outer periphery of the cathode. Electron gun structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2698590U JPH03118539U (en) | 1990-03-16 | 1990-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2698590U JPH03118539U (en) | 1990-03-16 | 1990-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03118539U true JPH03118539U (en) | 1991-12-06 |
Family
ID=31529859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2698590U Pending JPH03118539U (en) | 1990-03-16 | 1990-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03118539U (en) |
-
1990
- 1990-03-16 JP JP2698590U patent/JPH03118539U/ja active Pending