GB1145960A - Improvements in or relating to cathode-ray tubes - Google Patents
Improvements in or relating to cathode-ray tubesInfo
- Publication number
- GB1145960A GB1145960A GB1338967A GB1338967A GB1145960A GB 1145960 A GB1145960 A GB 1145960A GB 1338967 A GB1338967 A GB 1338967A GB 1338967 A GB1338967 A GB 1338967A GB 1145960 A GB1145960 A GB 1145960A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- path
- cathode
- march
- impedance
- 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
- H01J29/70—Arrangements for deflecting ray or beam
- H01J29/708—Arrangements for deflecting ray or beam in which the transit time of the electrons has to be taken into account
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
- H01J25/78—Tubes with electron stream modulated by deflection in a resonator
Landscapes
- Elimination Of Static Electricity (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Microwave Tubes (AREA)
Abstract
1,145,960. Cathode ray tubes; travelling wave tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 March, 1967 [25 March, 1966], No. 13389/67. Heading HID. A cathode-ray tube travelling-wave deflection system includes a slow wave structure having active parts extending along opposite sides of the beam path, the distance between the two parts increasing with distance along the path to avoid interception of the beam, the structure being supported by a plurality of insulating stay rods which extend parallel to the path, and at least one of the rods being provided with an electrical conductor which is so shaped as to maintain the impedance of the slow wave structure substantially constant along its length. As shown, the deflection system is formed by two flattened helices 1, Fig. 1, disposed on opposite sides of the beam path 2, each helix being supported from a corresponding grooved ceramic rod 5, Fig. 2, by rods 3 sealed into glass 4. To each ceramic rod 5 is secured a U-shaped metal member 6, the height of the sides 7 of which increase towards the output end of the system to counteract the decrease of capacitance arising from the increasing spacing between the two helices, and thereby ensure uniformity of impedance. Members 6 may be pressed on to their respective rods, or may be constituted of a metal or carbon layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6603924A NL6603924A (en) | 1966-03-25 | 1966-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1145960A true GB1145960A (en) | 1969-03-19 |
Family
ID=19796091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1338967A Expired GB1145960A (en) | 1966-03-25 | 1967-03-22 | Improvements in or relating to cathode-ray tubes |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB1145960A (en) |
| NL (1) | NL6603924A (en) |
-
1966
- 1966-03-25 NL NL6603924A patent/NL6603924A/xx unknown
-
1967
- 1967-03-22 GB GB1338967A patent/GB1145960A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6603924A (en) | 1967-09-26 |
| DE1614229B2 (en) | 1975-09-04 |
| DE1614229A1 (en) | 1970-06-25 |
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