GB422041A - Improvements in and relating to cathode ray tubes for television purposes - Google Patents
Improvements in and relating to cathode ray tubes for television purposesInfo
- Publication number
- GB422041A GB422041A GB25278/34A GB2527834A GB422041A GB 422041 A GB422041 A GB 422041A GB 25278/34 A GB25278/34 A GB 25278/34A GB 2527834 A GB2527834 A GB 2527834A GB 422041 A GB422041 A GB 422041A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- potential
- electrodes
- ray
- variations
- 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
- H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
-
- 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
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
422,041. Cathode-ray tubes; television. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. April 3, 1933, No. 25278 /34. Convention date, Nov. 26, 1932. Divided out of and addition to 420,667 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 5, 1933. [Classes 39 (i) and 40 (iii)] In Braun tubes as described in the parent Specification in which an aperture in an electrode 3 is reproduced on the picture screen by an electron-optical system consisting of a cylinder 4 and an apertured plate 5, the potential of the cylinder 4 is varied in rhythm with the potential of the electrode 2 controlling the intensity of the ray primarily by space-charge control. Sharp focusing is thus retained even with ray currents above 1 milliamp. The potential variations on the electrodes 2, 4 are out of phase if the tube is filled with gas at a pressure of the order of 10-<3>mm. up to 5.10<-3>mm., but are in phase if the tube contains residual gas at very low pressure. These potential variations are inversely proportional to the sensitivity of the electrodes 2, 4. The variations on the electrode 4 may be as great as or greater than those on the electrode 2. The electrodes 2 .. 5 are biassed through resistances 1, 7 .. 10 and the intensity control 11 is applied through condensers 12, 14 and a potentiometer 13.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE206049X | 1932-04-04 | ||
| DE270732X | 1932-07-27 | ||
| DE261132X | 1932-11-26 | ||
| DE161232X | 1932-12-16 | ||
| DE120133X | 1933-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB422041A true GB422041A (en) | 1935-01-03 |
Family
ID=27509825
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25278/34A Expired GB422041A (en) | 1932-04-04 | 1933-04-03 | Improvements in and relating to cathode ray tubes for television purposes |
| GB25279/34A Expired GB420881A (en) | 1932-04-04 | 1933-04-03 | Improvements in and relating to television arrangements with cathode ray tubes |
| GB9914/33A Expired GB420667A (en) | 1932-04-04 | 1933-04-03 | Improvements in and relating to cathode ray tubes for television purposes |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25279/34A Expired GB420881A (en) | 1932-04-04 | 1933-04-03 | Improvements in and relating to television arrangements with cathode ray tubes |
| GB9914/33A Expired GB420667A (en) | 1932-04-04 | 1933-04-03 | Improvements in and relating to cathode ray tubes for television purposes |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH206049A (en) |
| FR (1) | FR753746A (en) |
| GB (3) | GB422041A (en) |
| NL (1) | NL44293C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760823C (en) * | 1941-01-15 | 1953-08-24 | Aeg | Braun tube with electrostatic deflection |
| US2540142A (en) * | 1942-10-17 | 1951-02-06 | Sperry Corp | High-frequency tube structure and system |
| US5879603A (en) | 1996-11-08 | 1999-03-09 | Anchor Wall Systems, Inc. | Process for producing masonry block with roughened surface |
| US6029943A (en) * | 1996-11-08 | 2000-02-29 | Anchor Wall Systems, Inc. | Splitting technique |
| USD458693S1 (en) | 1996-11-08 | 2002-06-11 | Anchor Wall Systems, Inc. | Retaining wall block |
-
0
- NL NL44293D patent/NL44293C/xx active
-
1933
- 1933-04-01 CH CH206049D patent/CH206049A/en unknown
- 1933-04-03 FR FR753746D patent/FR753746A/en not_active Expired
- 1933-04-03 GB GB25278/34A patent/GB422041A/en not_active Expired
- 1933-04-03 GB GB25279/34A patent/GB420881A/en not_active Expired
- 1933-04-03 GB GB9914/33A patent/GB420667A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH206049A (en) | 1939-07-15 |
| GB420881A (en) | 1934-12-03 |
| GB420667A (en) | 1934-12-03 |
| FR753746A (en) | 1933-10-23 |
| NL44293C (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB422041A (en) | Improvements in and relating to cathode ray tubes for television purposes | |
| GB803221A (en) | Improvements relating to electron guns | |
| GB505751A (en) | Improvements in or relating to cathode ray tubes | |
| GB417713A (en) | Improvements in and relating to cathode ray-tubes | |
| GB538021A (en) | Cathode ray tube devices | |
| GB453223A (en) | Improvements in or relating to cathode ray tubes, preferably for television purposes | |
| GB470496A (en) | Television tube | |
| GB495707A (en) | Improvements in or relating to focussing systems for use in electric discharge tubes | |
| GB431774A (en) | Improvements in and relating to braun tubes | |
| GB399192A (en) | Television reception arrangement with braun tube | |
| GB423036A (en) | Braun tube | |
| GB435203A (en) | Braun tube for television purposes | |
| GB456331A (en) | Improvements in or relating to braun tubes, preferably for television purposes | |
| US2227032A (en) | Cathode ray tube | |
| GB431773A (en) | Method of and arrangement for avoiding the cross-current error in braun tubes | |
| GB421521A (en) | Improvements in and relating to cathode ray tubes for television purposes | |
| GB490278A (en) | Improvements in or relating to cathode ray television apparatus | |
| GB426706A (en) | Improvements in or relating to cathode ray tubes for use for television and like purposes | |
| GB439414A (en) | Improvements in or relating to cathode-ray tubes | |
| GB825898A (en) | Improvements in or relating to electric circuit arrangements incorporating cathode ray tubes | |
| GB439990A (en) | Improvements in or relating to gas filled cathode ray tube arrangements suitable foruse for television reception | |
| GB467611A (en) | Improvements in or relating to cathode ray tubes and apparatus comprising them | |
| GB471817A (en) | Improvements in or relating to electron discharge device arrangements | |
| Schlesinger | A new electron gun for picture display with low drive signals | |
| GB417590A (en) | A television receiving method employing braun tubes |