GB1401229A - Multibeam cathode ray tube - Google Patents
Multibeam cathode ray tubeInfo
- Publication number
- GB1401229A GB1401229A GB3726572A GB3726572A GB1401229A GB 1401229 A GB1401229 A GB 1401229A GB 3726572 A GB3726572 A GB 3726572A GB 3726572 A GB3726572 A GB 3726572A GB 1401229 A GB1401229 A GB 1401229A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- electrode
- layer
- anode
- cathode ray
- 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
- H01J29/48—Electron guns
- H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/48—Electron guns
- H01J2229/4824—Constructional arrangements of electrodes
- H01J2229/4827—Electrodes formed on surface of common cylindrical support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/48—Electron guns
- H01J2229/50—Plurality of guns or beams
- H01J2229/505—Arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2229/00—Details of cathode ray tubes or electron beam tubes
- H01J2229/48—Electron guns
- H01J2229/50—Plurality of guns or beams
- H01J2229/507—Multi-beam groups, e.g. number of beams greater than number of cathodes
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
1401229 Cathode ray tubes A W STANDAART 10 Aug 1972 [18 Aug 1971] 37265/72 Heading H1D A multi-beam cathode ray tube, for high writing speeds in computer displays for example, comprises pohsphor screen 13A, single gun 16 including beam control perforated electrode 18 and beam shaping perforated electrode (19) (Fig. 3, not shown) each electrode having aligned rows and columns of holes lined with conductive material, the holes of the control electrode being connected by individual conductor strips to terminals for applying selected potentials, and an accelerating anode 28, the cathode comprising joined metallic sheet members (23, 24) having outwardly projecting truncated V-shaped formations (Fig. 2, not shown), the sided channels so formed housing coiled filament wire along their length and flat faces (23C) coated with thermally activated electron emissive material. The gun members are mounted on frame 21. Helical electrode 28 provides a potential gradient from a maximum negative potential near the cathode and eliminates beam divergences due to mutual repulsion. The helix may be 2 mms. wide, 70 M# resistance, and potentials are given. The helix terminates with a metal distortion correction anode (30) (Fig. 3, not shown) to eliminate pin-cushion or barrel distortion of a 70 degree deflection system. Members (23, 24) of the cathode may be machined stamped or die rolled and spot-welded, and W filament (25) insulated by a layer of high temperature alumina or fused aluminium oxide. The honeycomb design resists heat warpage. The emissive material, referred to by Trade Name, may be sprayed, painted or electrophoretically deposited and protected from atmospheric poisoning by an organic lacquer until activation. Control grid 18 has stepped apertures (18A) (Fig. 7, not shown) in ceramic substrate (18B), the sputtered Au layer (18C) being increased in thickness by electroplating and providing a non-oxidizing or tarnishing metal conductor, or may alternatively be a Cu-Ni composite layer. Dimensions of the grid components are specified. A photographic method of production by etching is detailed. First anode 19 has a continuous Au layer on the surface away from the grid 18, and 0À001 inch wide Au around the aperture rims on the near side. Fig. 5 (not shown) indicates a cathode-control grid assembly.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17275671A | 1971-08-18 | 1971-08-18 | |
US00343030A US3843901A (en) | 1971-08-18 | 1973-03-20 | Multi-beam cathode ray tube construction |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1401229A true GB1401229A (en) | 1975-07-16 |
Family
ID=26868426
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB545374A Expired GB1401230A (en) | 1971-08-18 | 1972-08-10 | Multibeam cathode ray tube apparatus |
GB3726572A Expired GB1401229A (en) | 1971-08-18 | 1972-08-10 | Multibeam cathode ray tube |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB545374A Expired GB1401230A (en) | 1971-08-18 | 1972-08-10 | Multibeam cathode ray tube apparatus |
Country Status (9)
Country | Link |
---|---|
US (2) | US3748514A (en) |
AU (1) | AU467425B2 (en) |
BE (2) | BE845914Q (en) |
CA (1) | CA945617A (en) |
CH (1) | CH565449A5 (en) |
DE (1) | DE2240824A1 (en) |
FR (1) | FR2149530B1 (en) |
GB (2) | GB1401230A (en) |
NL (1) | NL7202479A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2160706A (en) * | 1984-05-01 | 1985-12-24 | Xerox Corp | Vacuum fluorescent printing discharge tube |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3748514A (en) * | 1971-08-18 | 1973-07-24 | A Standaart | Multi-beam cathode ray tube character display |
US3999097A (en) * | 1975-06-30 | 1976-12-21 | International Business Machines Corporation | Ion implantation apparatus utilizing multiple aperture source plate and single aperture accel-decel system |
US4142133A (en) * | 1976-10-20 | 1979-02-27 | Balandin Genrikh D | Cathode-ray tube with variable energy of beam electrons |
GB2031220B (en) * | 1978-10-04 | 1983-01-06 | English Electric Valve Co Ltd | Evacuated display tubes |
US4301389A (en) * | 1979-12-12 | 1981-11-17 | International Business Machines Corp. | Multiple beam cathode ray tube with apertured cathode and control grid |
US4616160A (en) * | 1983-09-30 | 1986-10-07 | Honeywell Information Systems Inc. | Multiple beam high definition page display |
NL8400779A (en) * | 1984-03-12 | 1985-10-01 | Philips Nv | CATHED BEAM TUBE. |
NL8500905A (en) * | 1985-03-28 | 1986-10-16 | Philips Nv | METHOD FOR PRODUCING AN ELECTRICAL RESISTANCE COATING DEVICE AND APPLICATION OF THE METHOD |
JP3546729B2 (en) * | 1998-12-21 | 2004-07-28 | 松下電器産業株式会社 | Electron gun, method for manufacturing electron gun, cathode ray tube device |
CN107703712B (en) * | 2017-11-13 | 2023-11-14 | 中国工程物理研究院激光聚变研究中心 | Hard X-ray stripe camera and method for detecting hard X-ray energy section thereof |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2272165A (en) * | 1938-03-01 | 1942-02-03 | Univ Leland Stanford Junior | High frequency electrical apparatus |
US2393890A (en) * | 1944-02-18 | 1946-01-29 | Invex Corp | Television system |
US2796549A (en) * | 1952-09-12 | 1957-06-18 | Paul E Fiske | Electronics matrix solver tube |
US2811668A (en) * | 1956-05-29 | 1957-10-29 | Gen Dynamics Corp | Electron beam deflection control system |
US2862144A (en) * | 1958-03-21 | 1958-11-25 | Gen Dynamics Corp | Simplified system for character selection in a shaped beam tube |
GB975251A (en) * | 1960-04-28 | 1900-01-01 | ||
US3375390A (en) * | 1966-01-03 | 1968-03-26 | Gen Electric | Electron optical system having spiral collimating electrode adjacent the target |
US3432710A (en) * | 1966-08-08 | 1969-03-11 | Donald G Gumpertz | Display tube having character mask with electron gun individual to each character |
US3686727A (en) * | 1971-03-22 | 1972-08-29 | Sylvania Electric Prod | Method of fabricating a multibeam electron gun structure |
US3748514A (en) * | 1971-08-18 | 1973-07-24 | A Standaart | Multi-beam cathode ray tube character display |
-
1971
- 1971-08-18 US US00172756A patent/US3748514A/en not_active Expired - Lifetime
-
1972
- 1972-02-25 NL NL7202479A patent/NL7202479A/xx unknown
- 1972-08-10 GB GB545374A patent/GB1401230A/en not_active Expired
- 1972-08-10 GB GB3726572A patent/GB1401229A/en not_active Expired
- 1972-08-16 AU AU45624/72A patent/AU467425B2/en not_active Expired
- 1972-08-17 CH CH1220872A patent/CH565449A5/xx not_active IP Right Cessation
- 1972-08-17 FR FR7229495A patent/FR2149530B1/fr not_active Expired
- 1972-08-17 CA CA149,649A patent/CA945617A/en not_active Expired
- 1972-08-18 DE DE2240824A patent/DE2240824A1/en active Pending
-
1973
- 1973-03-20 US US00343030A patent/US3843901A/en not_active Expired - Lifetime
-
1976
- 1976-09-07 BE BE170403A patent/BE845914Q/en active
- 1976-09-07 BE BE170404A patent/BE845915Q/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2160706A (en) * | 1984-05-01 | 1985-12-24 | Xerox Corp | Vacuum fluorescent printing discharge tube |
Also Published As
Publication number | Publication date |
---|---|
DE2240824A1 (en) | 1973-03-01 |
FR2149530B1 (en) | 1976-10-29 |
NL7202479A (en) | 1973-02-20 |
FR2149530A1 (en) | 1973-03-30 |
AU4562472A (en) | 1974-02-21 |
GB1401230A (en) | 1975-07-16 |
BE845915Q (en) | 1976-12-31 |
CA945617A (en) | 1974-04-16 |
US3843901A (en) | 1974-10-22 |
BE845914Q (en) | 1976-12-31 |
CH565449A5 (en) | 1975-08-15 |
AU467425B2 (en) | 1975-12-04 |
US3748514A (en) | 1973-07-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |