JPS5488021A - Pickup tube - Google Patents
Pickup tubeInfo
- Publication number
- JPS5488021A JPS5488021A JP15555477A JP15555477A JPS5488021A JP S5488021 A JPS5488021 A JP S5488021A JP 15555477 A JP15555477 A JP 15555477A JP 15555477 A JP15555477 A JP 15555477A JP S5488021 A JPS5488021 A JP S5488021A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- pickup tube
- welding part
- welding
- grid
- 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
Abstract
PURPOSE: To eliminate virtually the electrode shift at the welding time by reducing the thickness at the welding part for the structure of the beam disc support, and thus to enhance greatly the alignment accuracy for the pickup tube.
CONSTITUTION: The electrode is assembled so that the electron beam radiated from cathode 1 may pass through each center hole of 1st grid 2, 2nd grid 3 and beam limit aperture. For this purpose, the thickness of welding part A is reduced for the structure of beam disc support 6. As a result, a small fusing range is secured for the welding part, and thus virtually no shift is caused for the electrode at the welding time. Thus, the alignment accuracy can be enhanced greatly for the pickup tube.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15555477A JPS5488021A (en) | 1977-12-26 | 1977-12-26 | Pickup tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15555477A JPS5488021A (en) | 1977-12-26 | 1977-12-26 | Pickup tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5488021A true JPS5488021A (en) | 1979-07-12 |
Family
ID=15608590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15555477A Pending JPS5488021A (en) | 1977-12-26 | 1977-12-26 | Pickup tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5488021A (en) |
-
1977
- 1977-12-26 JP JP15555477A patent/JPS5488021A/en active Pending
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