GB424690A - Improvements in or relating to cathode ray tubes - Google Patents
Improvements in or relating to cathode ray tubesInfo
- Publication number
- GB424690A GB424690A GB23681/33A GB2368133A GB424690A GB 424690 A GB424690 A GB 424690A GB 23681/33 A GB23681/33 A GB 23681/33A GB 2368133 A GB2368133 A GB 2368133A GB 424690 A GB424690 A GB 424690A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- tube
- tubes
- electrodes
- ray tubes
- 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
- 239000011521 glass Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 1
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
- H01J29/48—Electron guns
- H01J29/487—Replacing parts of the gun; Relative adjustment of the electrodes
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
424,690. Cathode-ray tubes. FERNSEH AKT.-GES., Goerzallee, Zehlendorf, Berlin. Aug. 25, 1933, No. 23681. Convention date, Sept. 1, 1932. [Class 39 (i)] The cathode is carried by a glass tube 5, Fig. 1, fitting into a glass tube 6 permanently sealed in the cylindrical shaft or other envelope part containing the electrodes, and sliding guides are provided for aligning the cathode when the tube 5 is fitted into the tube 6. These guides may be formed by the close fit between the tubes 5, 6 or a metal part 31, Fig. 2, secured to but insulated from the cathode 1 may slide into the Wehnelt cylinder 22 or other electrode or into a part independent of the electrodes. The tubes 5, 6 are sealed together at their outer end 4 to facilitate renewal of the cathode. The pinch 7 on the tube 5 carries the evacuating tube and may carry the Wehnelt cylinder or other electrodes as well as the cathode. The tubes 2 accommodate electrode leads.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE424690X | 1932-09-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB424690A true GB424690A (en) | 1935-02-25 |
Family
ID=6476938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB23681/33A Expired GB424690A (en) | 1932-09-01 | 1933-08-25 | Improvements in or relating to cathode ray tubes |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR759676A (en) |
| GB (1) | GB424690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020058053A1 (en) * | 2018-09-20 | 2020-03-26 | Thales Deutschland GmbH Electron Devices | Electron gun |
-
1933
- 1933-08-14 FR FR759676D patent/FR759676A/en not_active Expired
- 1933-08-25 GB GB23681/33A patent/GB424690A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020058053A1 (en) * | 2018-09-20 | 2020-03-26 | Thales Deutschland GmbH Electron Devices | Electron gun |
| US11990307B2 (en) | 2018-09-20 | 2024-05-21 | Thales Deutschland GmbH Electron Devices | Electron gun |
Also Published As
| Publication number | Publication date |
|---|---|
| FR759676A (en) | 1934-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB415411A (en) | Improvements in high vacuum cathode ray tubes | |
| GB638139A (en) | Improvements in and relating to electron discharge devices | |
| GB541910A (en) | Cathode ray tube envelope | |
| GB451451A (en) | Improvements in or relating to cathode ray tubes and methods of manufacturing the same | |
| GB420876A (en) | Braun tube | |
| GB518574A (en) | Improvements in or relating to cathode ray tubes | |
| GB424690A (en) | Improvements in or relating to cathode ray tubes | |
| GB516110A (en) | Improvements in electron discharge tubes | |
| GB423036A (en) | Braun tube | |
| GB461450A (en) | Improvements in or relating to electric discharge devices | |
| GB475846A (en) | Electron discharge tubes and methods of manufacturing such tubes | |
| GB470186A (en) | Improvements in or relating to cathode-ray tubes and like electron discharge devices | |
| GB539897A (en) | Improvements in or relating to electron discharge devices | |
| GB500017A (en) | Improvements in cathode ray tubes | |
| GB516455A (en) | Improvements relating to cathode ray tubes | |
| GB435203A (en) | Braun tube for television purposes | |
| GB470496A (en) | Television tube | |
| GB431775A (en) | Braun tube and method of operating these tubes | |
| GB415165A (en) | Improvements in or relating to electric discharge tubes | |
| GB537762A (en) | Improvements in and relating to electric discharge devices | |
| GB496812A (en) | Improvements in or relating to electro-magnetic deflecting coils for cathode ray tubes | |
| GB495417A (en) | Improvements in or relating to electron discharge devices employing evacuated envelopes with seal arrangements of the re-entrant type | |
| GB479920A (en) | Improvements in and relating to electric discharge devices | |
| GB480066A (en) | Improvements in or relating to electric discharge tubes | |
| GB419379A (en) | Improvements in or relating to cathode ray tubes |