GB613145A - Improvements in or relating to electric discharge tubes - Google Patents
Improvements in or relating to electric discharge tubesInfo
- Publication number
- GB613145A GB613145A GB8417/46A GB841746A GB613145A GB 613145 A GB613145 A GB 613145A GB 8417/46 A GB8417/46 A GB 8417/46A GB 841746 A GB841746 A GB 841746A GB 613145 A GB613145 A GB 613145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discs
- cylinder
- cylinders
- secured
- disc
- 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.)
- Expired
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
- H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
Landscapes
- Electron Sources, Ion Sources (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
613,145. Electron beam apparatus. PHILIPS LAMPS, Ltd. March 19, 1946, No. 8417. Convention date, Aug. 14, 1941. [Class 39 (i)] An electrode system for producing a narrow electron beam comprises a cathode, a Wehnelt cylinder 4 and associated disc 6, an anode consisting of the two cylinders 2, 3 and the two discs 1, 20, and a final anode consisting of cylinder 7 and disc 8. Disc 20 is secured to the cylinder 3, and the discs may be secured in position in an assembly after the adjacent cylinder or cylinders have been secured in position in the assembly. Thus, the discs may be positioned with great accuracy; the positioning of the cylinders is less important because the discs bound the focusing fields. The electrodes may be supported from glass rods 18 in the manner described in Specification 483,435.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL230972X | 1941-08-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB613145A true GB613145A (en) | 1948-11-23 |
Family
ID=19779948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8417/46A Expired GB613145A (en) | 1941-08-14 | 1946-03-19 | Improvements in or relating to electric discharge tubes |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE446842A (en) |
| CH (1) | CH230972A (en) |
| DE (1) | DE848538C (en) |
| FR (1) | FR884956A (en) |
| GB (1) | GB613145A (en) |
| NL (1) | NL63858C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897391A (en) * | 1957-04-02 | 1959-07-28 | George B Erskine | Studded electrode and method of manufacture |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2656309A (en) * | 1951-02-05 | 1953-10-20 | Walter T Brown | Process of coking a mixture of a carbonaceous material and a high boiling bituminous pitch |
| DE1076827B (en) * | 1952-05-24 | 1960-03-03 | Telefunken Gmbh | Electron beam generation system for cathode ray tubes |
| NL89618C (en) * | 1955-11-18 | |||
| DE1093492B (en) * | 1958-08-13 | 1960-11-24 | Telefunken Gmbh | Method of manufacturing a multi-electrode electrode system for electron beam tubes |
| DE1164577B (en) * | 1960-04-25 | 1964-03-05 | Werk Fernsehelektronik Veb | Assembly jig for producing a mechanical connection that ensures the defined distance between the Wehnelt diaphragm and the cathode sleeve of an electron gun |
| DE1129628B (en) * | 1961-02-14 | 1962-05-17 | Telefunken Patent | Melting clamp for fastening electrodes for electron tubes, especially for cathode ray tubes |
-
0
- BE BE446842D patent/BE446842A/xx unknown
- NL NL63858D patent/NL63858C/xx active
-
1942
- 1942-08-11 CH CH230972D patent/CH230972A/en unknown
- 1942-08-12 FR FR884956D patent/FR884956A/en not_active Expired
- 1942-08-12 DE DEN2555D patent/DE848538C/en not_active Expired
-
1946
- 1946-03-19 GB GB8417/46A patent/GB613145A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2897391A (en) * | 1957-04-02 | 1959-07-28 | George B Erskine | Studded electrode and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| NL63858C (en) | |
| CH230972A (en) | 1944-02-15 |
| BE446842A (en) | |
| DE848538C (en) | 1952-09-04 |
| FR884956A (en) | 1943-09-01 |
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