GB733176A - Improvements in or relating to apparatus embodying cathode-ray tubes - Google Patents
Improvements in or relating to apparatus embodying cathode-ray tubesInfo
- Publication number
- GB733176A GB733176A GB18858/52A GB1885852A GB733176A GB 733176 A GB733176 A GB 733176A GB 18858/52 A GB18858/52 A GB 18858/52A GB 1885852 A GB1885852 A GB 1885852A GB 733176 A GB733176 A GB 733176A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grids
- collecting electrode
- cathode
- july
- 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
- H01J29/58—Arrangements for focusing or reflecting ray or beam
- H01J29/62—Electrostatic lenses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Abstract
733,176. Cathode-ray tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1952 [July 28, 1951], No. 18858/52. Class 39 (1). Between the accelerating electrode and the collecting electrode 1 of a cathode-ray tube are located two grids 2, 3 athwart the electron stream, the spaces of the one grid in line with the solid parts of the other, and the variable positive potentials on the grids which are less than the positive potential of the collecting electrode give convergent beams shifting the point of electron impact in the plane of the collecting electrode. Figs. 2 and 3 show two different positions for coincident focal lines. In Fig. 4 the control voltage is raised so that the beams cross one another. The arrangement is applied in an amplifier tube with a plurality of parallel strip electrodes, the alternate ones of which are connected together and to one end of an output transformer. Oscillations may be generated by coupling the output electrodes to one or both grids. The collecting electrode may be a luminescent screen in dots or continuous lines, the electron beam scanning the face of the grids.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL303068X | 1951-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB733176A true GB733176A (en) | 1955-07-06 |
Family
ID=19783387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18858/52A Expired GB733176A (en) | 1951-07-28 | 1952-07-25 | Improvements in or relating to apparatus embodying cathode-ray tubes |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE513150A (en) |
| CH (1) | CH303068A (en) |
| GB (1) | GB733176A (en) |
| NL (1) | NL162979B (en) |
-
0
- BE BE513150D patent/BE513150A/xx unknown
- NL NL7416711.A patent/NL162979B/en unknown
-
1952
- 1952-07-25 GB GB18858/52A patent/GB733176A/en not_active Expired
- 1952-07-26 CH CH303068D patent/CH303068A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL162979B (en) | |
| BE513150A (en) | |
| CH303068A (en) | 1954-11-15 |
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