BE437124A - - Google Patents
Info
- Publication number
- BE437124A BE437124A BE437124DA BE437124A BE 437124 A BE437124 A BE 437124A BE 437124D A BE437124D A BE 437124DA BE 437124 A BE437124 A BE 437124A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J31/54—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output in which the electron ray or beam is reflected by the image input screen on to the image output screen
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF4594D DE891305C (de) | 1938-12-04 | 1938-12-04 | Entladungsroehre mit photoelektrischer Kathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE437124A true BE437124A (it) | 1939-12-30 |
Family
ID=7084256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE437124D BE437124A (it) | 1938-12-04 | 1939-11-22 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE437124A (it) |
| DE (1) | DE891305C (it) |
| FR (1) | FR872430A (it) |
| NL (1) | NL60019C (it) |
-
1938
- 1938-12-04 DE DEF4594D patent/DE891305C/de not_active Expired
-
1939
- 1939-11-22 BE BE437124D patent/BE437124A/xx unknown
- 1939-11-24 NL NL96024A patent/NL60019C/xx active
-
1941
- 1941-05-23 FR FR872430D patent/FR872430A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL60019C (it) | 1947-10-15 |
| FR872430A (fr) | 1942-06-08 |
| DE891305C (de) | 1953-09-28 |