NL41683C - - Google Patents
Info
- Publication number
- NL41683C NL41683C NL41683DA NL41683C NL 41683 C NL41683 C NL 41683C NL 41683D A NL41683D A NL 41683DA NL 41683 C NL41683 C NL 41683C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/58—Arrangements for focusing or reflecting ray or beam
- H01J29/62—Electrostatic lenses
- H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
- H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE421050X | 1932-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL41683C true NL41683C (https=) |
Family
ID=6455496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL41683D NL41683C (https=) | 1932-05-14 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2003775A (https=) |
| FR (1) | FR755580A (https=) |
| GB (1) | GB421050A (https=) |
| NL (1) | NL41683C (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2430482A (en) * | 1942-02-12 | 1947-11-11 | Raytheon Mfg Co | Gaseous electric lamp |
| US2438709A (en) * | 1942-08-06 | 1948-03-30 | Hartford Nat Bank & Trust Co | Thermionic tube having secondary electron emissive electrode with surface and form variations |
| FR961000A (https=) * | 1945-09-22 | 1950-04-28 | ||
| US3355618A (en) * | 1965-10-21 | 1967-11-28 | Rca Corp | Electron gun for use in a cathode ray tube exhibiting enhanced electron emission |
-
0
- NL NL41683D patent/NL41683C/xx active
-
1933
- 1933-05-12 GB GB13842/33A patent/GB421050A/en not_active Expired
- 1933-05-13 FR FR755580D patent/FR755580A/fr not_active Expired
- 1933-05-13 US US670819A patent/US2003775A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB421050A (en) | 1934-12-12 |
| US2003775A (en) | 1935-06-04 |
| FR755580A (fr) | 1933-11-27 |