GB777757A - Improvements in or relating to cathode-ray tubes for image reproduction - Google Patents
Improvements in or relating to cathode-ray tubes for image reproductionInfo
- Publication number
- GB777757A GB777757A GB4921/55A GB492155A GB777757A GB 777757 A GB777757 A GB 777757A GB 4921/55 A GB4921/55 A GB 4921/55A GB 492155 A GB492155 A GB 492155A GB 777757 A GB777757 A GB 777757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- grid
- strips
- extreme
- secured
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
- H01J19/28—Non-electron-emitting electrodes; Screens
- H01J19/38—Control electrodes, e.g. grid
-
- 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
- H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
- H01J29/803—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching for post-acceleration or post-deflection, e.g. for colour switching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2893/00—Discharge tubes and lamps
- H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
- H01J2893/0012—Constructional arrangements
- H01J2893/0015—Non-sealed electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
777,757. Colour television tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 18, 1955 [Feb. 23, 1954], No. 4921/55. Class 39(1). Distortion of an extreme wire of the deflection grids of a cathode ray tube is eliminated by providing a rigid conductive part which is connected electrically to the wire next adjacent the extreme wire. In Fig. 2 the wires of two grids are secured to conductive strips 10, 11, 12 and 13 and are arranged alternatively all in the same plane. Thick wires 20, 21 are secured to strips 10, 12 adjacent extreme grid wires 18, 19 and do not themselves distort under electrical stress and compensate the stress on grid wires 18, 19 arising from the adjacent wires of the other grid. The wires secured to strips 10, 12 are coated with insulation at the area where they pass over strips 11, 13. The wires 20, 21 may be replaced by strips forming the sides of a frame, Figs. 3, 5 (not shown). Fig. 6 shows the arrangement when the extreme wires 31, 32 are not of the same grid, one support of each grid being a bent arm 28, 30.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL185327A NL93773C (en) | 1954-02-23 | 1954-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB777757A true GB777757A (en) | 1957-06-26 |
Family
ID=19750652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4921/55A Expired GB777757A (en) | 1954-02-23 | 1955-02-18 | Improvements in or relating to cathode-ray tubes for image reproduction |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2813214A (en) |
| BE (1) | BE535893A (en) |
| CH (1) | CH328925A (en) |
| DE (2) | DE1732539U (en) |
| FR (1) | FR1119488A (en) |
| GB (1) | GB777757A (en) |
| NL (2) | NL93773C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2224881A (en) * | 1988-10-21 | 1990-05-16 | Futaba Denshi Kogyo Kk | "fluorescent printer head" |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4150319A (en) * | 1977-09-22 | 1979-04-17 | The Bendix Corporation | Ion gating grid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1071755B (en) * | 1951-04-04 |
-
0
- BE BE535893D patent/BE535893A/xx unknown
- NL NLAANVRAGE8003300,A patent/NL185327B/en unknown
-
1954
- 1954-02-23 NL NL185327A patent/NL93773C/xx active
-
1955
- 1955-01-05 US US479939A patent/US2813214A/en not_active Expired - Lifetime
- 1955-02-18 GB GB4921/55A patent/GB777757A/en not_active Expired
- 1955-02-19 DE DEN5161U patent/DE1732539U/en not_active Expired
- 1955-02-20 DE DEN10224A patent/DE948701C/en not_active Expired
- 1955-02-21 CH CH328925D patent/CH328925A/en unknown
- 1955-02-21 FR FR1119488D patent/FR1119488A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2224881A (en) * | 1988-10-21 | 1990-05-16 | Futaba Denshi Kogyo Kk | "fluorescent printer head" |
| GB2224881B (en) * | 1988-10-21 | 1993-01-27 | Futaba Denshi Kogyo Kk | Fluorescent printer head |
Also Published As
| Publication number | Publication date |
|---|---|
| CH328925A (en) | 1958-03-31 |
| DE948701C (en) | 1956-09-06 |
| BE535893A (en) | |
| NL185327B (en) | |
| NL93773C (en) | 1960-04-19 |
| US2813214A (en) | 1957-11-12 |
| FR1119488A (en) | 1956-06-20 |
| DE1732539U (en) | 1956-10-25 |
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