JPS5586053A - Image pickup tube - Google Patents
Image pickup tubeInfo
- Publication number
- JPS5586053A JPS5586053A JP15746578A JP15746578A JPS5586053A JP S5586053 A JPS5586053 A JP S5586053A JP 15746578 A JP15746578 A JP 15746578A JP 15746578 A JP15746578 A JP 15746578A JP S5586053 A JPS5586053 A JP S5586053A
- Authority
- JP
- Japan
- Prior art keywords
- target
- center
- coil
- section
- image pickup
- 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
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
PURPOSE: To prevent the circular high brightness section from appearing with the return beam by setting the center position of a principal lens on the target end from the position of the deflection center by 0.1W0.16 magnifications of the distance between the beam limit hole and the target.
CONSTITUTION: The center position of the focussed coil (principal lens) 7 is set on the target end 6 from the center of the deflection coil 8 at the position by 0.1W 0.16 magnifications of the distance between the beam limit hole 11 and the target 6. By setting the position of the focussed coil 7 like this, the return beam from the target scans only the flat section of the beam disk 9. As a result, the appearance of the circular high brightness section which is cuased by scanning the end (section which emits a number of secondary electrons in particular) of the beam disk 9 can be avoided.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15746578A JPS5586053A (en) | 1978-12-22 | 1978-12-22 | Image pickup tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15746578A JPS5586053A (en) | 1978-12-22 | 1978-12-22 | Image pickup tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5586053A true JPS5586053A (en) | 1980-06-28 |
Family
ID=15650254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15746578A Pending JPS5586053A (en) | 1978-12-22 | 1978-12-22 | Image pickup tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5586053A (en) |
-
1978
- 1978-12-22 JP JP15746578A patent/JPS5586053A/en active Pending
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