GB1242881A - Cathode ray tube - Google Patents
Cathode ray tubeInfo
- Publication number
- GB1242881A GB1242881A GB49213/68A GB4921368A GB1242881A GB 1242881 A GB1242881 A GB 1242881A GB 49213/68 A GB49213/68 A GB 49213/68A GB 4921368 A GB4921368 A GB 4921368A GB 1242881 A GB1242881 A GB 1242881A
- Authority
- GB
- United Kingdom
- Prior art keywords
- low
- ring
- voltage
- electrodes
- cathode
- 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
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/06—Screens for shielding; Masks interposed in the electron stream
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
1,242,881. Cathode-ray display tubes. R.C.A. CORPORATION. 17 Oct., 1968 [17 Oct., 1967], No. 49213/68. Heading H1D. A cathode-ray tube for colour TV and including Einzel or bi-potential focus lenses and a shadow mask for example, comprises a plurality of electron guns each having low voltage and high voltage apertured electrodes 28 and 29 respectively supported by a plurality of glass rods 32, and a low voltage suppressor ring 90 surrounding and spaced outwardly between the glass rods and the tube neck for shielding the external surfaces of the low-voltage electrodes from high electric fields established on the high voltage electrodes and on the envelope neck portion. Ring 90 may be split, segmented or closed and may be included as an intermediate portion of wire 84 to low potential focus electrode 30. A split ring prevents RF coupling during processing and serves as a flexible connection to focus electrode 30. Ring 90 may alternatively be connected directly to ground or a low impedance voltage source.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67582067A | 1967-10-17 | 1967-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1242881A true GB1242881A (en) | 1971-08-18 |
Family
ID=24712098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49213/68A Expired GB1242881A (en) | 1967-10-17 | 1968-10-17 | Cathode ray tube |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3558954A (en) |
| BE (1) | BE722412A (en) |
| BR (1) | BR6800370D0 (en) |
| DE (1) | DE1803033C3 (en) |
| ES (1) | ES359169A1 (en) |
| FR (1) | FR1576870A (en) |
| GB (1) | GB1242881A (en) |
| NL (1) | NL6814797A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3771003A (en) * | 1972-05-25 | 1973-11-06 | Gte Sylvania Inc | Shielded cathode ray tube electron gun |
| US3962599A (en) * | 1974-11-25 | 1976-06-08 | Gte Sylvania Incorporated | Shielding means for cathode ray tube |
| US4168452A (en) * | 1976-06-10 | 1979-09-18 | Zenith Radio Corporation | Tetrode section for a unitized, three-beam electron gun having an extended field main focus lens |
| US4288719A (en) * | 1979-03-09 | 1981-09-08 | Rca Corporation | CRT With means for suppressing arcing therein |
| US4338543B1 (en) * | 1979-06-15 | 1999-05-18 | Rca Licensing Corp | Crt with arc suppression means therein |
| JPS58145045A (en) * | 1982-02-24 | 1983-08-29 | Hitachi Ltd | Cathode-ray tube |
| US4567400A (en) * | 1983-02-28 | 1986-01-28 | Rca Corporation | CRT Comprising metallized glass beads for suppressing arcing therein |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB508552A (en) * | 1937-12-31 | 1939-06-30 | Baird Television Ltd | Improvements in or relating to cathode-ray tubes and like electron discharge devices |
| US2438587A (en) * | 1943-12-24 | 1948-03-30 | Gen Electric | Phototube containing means to counteract negative wall charges |
| BE635894A (en) * | 1962-08-06 | |||
| FR1502410A (en) * | 1966-01-14 | 1967-11-18 | Hitachi Ltd | Advanced tube for color television |
-
1967
- 1967-10-17 US US675820A patent/US3558954A/en not_active Expired - Lifetime
-
1968
- 1968-07-03 BR BR200370/68A patent/BR6800370D0/en unknown
- 1968-08-08 FR FR1576870D patent/FR1576870A/fr not_active Expired
- 1968-10-14 DE DE1803033A patent/DE1803033C3/en not_active Expired
- 1968-10-15 ES ES359169A patent/ES359169A1/en not_active Expired
- 1968-10-16 BE BE722412D patent/BE722412A/xx unknown
- 1968-10-16 NL NL6814797A patent/NL6814797A/xx unknown
- 1968-10-17 GB GB49213/68A patent/GB1242881A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES359169A1 (en) | 1970-05-16 |
| BE722412A (en) | 1969-04-01 |
| DE1803033B2 (en) | 1980-07-03 |
| US3558954A (en) | 1971-01-26 |
| NL6814797A (en) | 1969-04-21 |
| FR1576870A (en) | 1969-08-01 |
| BR6800370D0 (en) | 1973-01-11 |
| DE1803033C3 (en) | 1981-05-14 |
| DE1803033A1 (en) | 1969-05-22 |
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