FR785265A - Cathode enhancements for cathode ray tubes - Google Patents
Cathode enhancements for cathode ray tubesInfo
- Publication number
- FR785265A FR785265A FR785265DA FR785265A FR 785265 A FR785265 A FR 785265A FR 785265D A FR785265D A FR 785265DA FR 785265 A FR785265 A FR 785265A
- Authority
- FR
- France
- Prior art keywords
- cathode
- enhancements
- ray tubes
- cathode 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
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
- H01J29/485—Construction of the gun or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/15—Cathodes heated directly by an electric current
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE450865X | 1934-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR785265A true FR785265A (en) | 1935-08-06 |
Family
ID=6538452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR785265D Expired FR785265A (en) | 1934-01-27 | 1935-01-26 | Cathode enhancements for cathode ray tubes |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR785265A (en) |
| GB (1) | GB450865A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2279495A (en) * | 1993-06-22 | 1995-01-04 | Thorn Microwave Devices Limite | Thermionic cathode |
-
1935
- 1935-01-24 GB GB2401/35A patent/GB450865A/en not_active Expired
- 1935-01-26 FR FR785265D patent/FR785265A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB450865A (en) | 1936-07-24 |
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