BE477662A - - Google Patents
Info
- Publication number
- BE477662A BE477662A BE477662DA BE477662A BE 477662 A BE477662 A BE 477662A BE 477662D A BE477662D A BE 477662DA BE 477662 A BE477662 A BE 477662A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/26—Image pick-up tubes having an input of visible light and electric output
- H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
- H01J31/30—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at anode potential, e.g. iconoscope
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21988/39A GB532717A (en) | 1939-07-28 | 1939-07-28 | Improvements in or relating to electron discharge apparatus using secondary emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE477662A true BE477662A (ko) |
Family
ID=10172112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE477662D BE477662A (ko) | 1939-07-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2585057A (ko) |
| BE (1) | BE477662A (ko) |
| FR (1) | FR867295A (ko) |
| GB (1) | GB532717A (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE563653A (ko) * | 1957-03-27 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1704155A (en) * | 1923-07-27 | 1929-03-05 | Albert G Thomas | Vacuum tube |
| US2037352A (en) * | 1929-01-12 | 1936-04-14 | Rca Corp | Electronic vacuum tube |
| GB511449A (en) * | 1938-02-17 | 1939-08-18 | Marconi Wireless Telegraph Co | Improvements in or relating to electron discharge devices |
| NL52549C (ko) * | 1939-06-06 | |||
| US2358542A (en) * | 1940-07-26 | 1944-09-19 | Rca Corp | Currentless grid tube |
-
0
- BE BE477662D patent/BE477662A/xx unknown
-
1939
- 1939-07-28 GB GB21988/39A patent/GB532717A/en not_active Expired
-
1940
- 1940-09-24 FR FR867295D patent/FR867295A/fr not_active Expired
-
1947
- 1947-08-07 US US767019A patent/US2585057A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB532717A (en) | 1941-01-29 |
| FR867295A (fr) | 1941-10-10 |
| US2585057A (en) | 1952-02-12 |