GB1354681A - Cathode ray tube apparatus - Google Patents
Cathode ray tube apparatusInfo
- Publication number
- GB1354681A GB1354681A GB1574670A GB1354681DA GB1354681A GB 1354681 A GB1354681 A GB 1354681A GB 1574670 A GB1574670 A GB 1574670A GB 1354681D A GB1354681D A GB 1354681DA GB 1354681 A GB1354681 A GB 1354681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- registers
- tubes
- april
- changed
- changes
- 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
- 238000012937 correction Methods 0.000 abstract 2
- 241000826860 Trapezium Species 0.000 abstract 1
- 201000009310 astigmatism Diseases 0.000 abstract 1
- 239000003086 colorant Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/123—Flat display tubes
- H01J31/124—Flat display tubes using electron beam scanning
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Details Of Television Scanning (AREA)
Abstract
1354681 Cathode-ray tube circuits SANDERS ASSOCIATES Inc 19 April 1971 [2 April 1970] 15746/70 Heading H4T [Also in Division H1] A flat cathode-ray display tube 203, Fig., 9, is scanned in orthogonal directions under the control of binary signals fed from a computer to registers 195 and 196. The output of the registers are converted to analogue signals and fed through respective amplifiers 201, 202 to the deflection plates. A coupling circuit 204 corrects for the trapezium distortion to which this type of tube is subject, and if a D.C. coupled circuit is employed an off-set potential must be connected between the amplifiers to correct a parallelogram scan into a rectangular one. Units 205-209 apply corrections for focus, linearity and astigmatism and these corrections need not be changed as each code in the registers is changed; for 256 changes in the registers there may be only 32 changes of code applied to the decoders 199 and 200. Any co-ordinate position may be selected and addressed and the computer output may be programmed to direct the beam in other ways than a raster scan, for example alphanumerically. Specific tubes described include single beam and double beam tubes producing single or double displays in one, two, three or more colours, and camera tubes are mentioned.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1574670 | 1970-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1354681A true GB1354681A (en) | 1974-06-05 |
Family
ID=10064754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1574670A Expired GB1354681A (en) | 1970-04-02 | 1970-04-02 | Cathode ray tube apparatus |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3890541A (en) |
| BE (1) | BE765138A (en) |
| CA (1) | CA937971A (en) |
| CH (1) | CH539337A (en) |
| DE (1) | DE2116288A1 (en) |
| FR (1) | FR2083267A5 (en) |
| GB (1) | GB1354681A (en) |
| IL (1) | IL36468A (en) |
| NL (1) | NL7104470A (en) |
| SE (1) | SE379257B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1592571A (en) * | 1977-05-18 | 1981-07-08 | Nat Res Dev | Cathode ray tubes |
| JPS5788653A (en) * | 1980-11-25 | 1982-06-02 | Sony Corp | Flat type cathode-ray tube |
| JPS5790552U (en) * | 1980-11-26 | 1982-06-03 | ||
| JPH0129709Y2 (en) * | 1981-06-15 | 1989-09-11 | ||
| GB2117965A (en) * | 1982-02-05 | 1983-10-19 | Philips Electronic Associated | Electron beam deflector for a flat display tube |
| US4490652A (en) * | 1982-12-30 | 1984-12-25 | International Business Machines Corporation | Flat cathode ray tube with keystone compensation |
| US4752721A (en) * | 1984-09-12 | 1988-06-21 | Matsushita Electric Industrial Co., Ltd. | Charged particle beam deflector and flat CRT using the same |
| US4658188A (en) * | 1985-02-11 | 1987-04-14 | Control Interface Company Limited | Apparatus and method for scanning a flat screen cathode ray tube |
| JPS6269445A (en) * | 1985-09-20 | 1987-03-30 | Hitachi Ltd | Cathode-ray tube |
| JPH05225932A (en) * | 1992-02-17 | 1993-09-03 | Sony Corp | Transmission type flat cathode-ray tube |
| KR940008401A (en) * | 1992-09-29 | 1994-04-29 | 오오가 노리오 | Flat Cathode Ray Tube |
| JP3487343B2 (en) * | 2000-02-09 | 2004-01-19 | ソニー株式会社 | Cathode tube and video display method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2997621A (en) * | 1956-04-04 | 1961-08-22 | Motorola Inc | Image display device |
| BE559755A (en) * | 1956-08-01 | |||
| US2972703A (en) * | 1957-07-30 | 1961-02-21 | Kaiser Ind Corp | Electronic control system |
| US3068360A (en) * | 1960-03-24 | 1962-12-11 | Rca Corp | Radar light amplifier device |
| GB974093A (en) * | 1962-05-15 | 1964-11-04 | Nat Res Dev | Cathode ray tube |
| US3118084A (en) * | 1962-06-29 | 1964-01-14 | Gen Electric | Vertical deflection arrangement |
| US3181027A (en) * | 1963-01-14 | 1965-04-27 | Video Color Corp | Multiple beam flat color television tube and sweep system therefor |
| US3215888A (en) * | 1963-02-07 | 1965-11-02 | Gen Electric | Deflection system for relatively shallow cathode ray tube |
| US3377500A (en) * | 1966-06-20 | 1968-04-09 | Fairchild Camera Instr Co | Flat cathode-ray display tube |
| US3435277A (en) * | 1967-03-27 | 1969-03-25 | Gen Electric | Deflection system for a flat tube display |
| US3461333A (en) * | 1967-04-10 | 1969-08-12 | Gen Electric | Deflection system for flat cathode ray tube having canted electron gun in plane parallel to display screen |
| US3531681A (en) * | 1968-06-25 | 1970-09-29 | Joseph T Harden Jr | Flat display tube and method |
-
1970
- 1970-04-02 GB GB1574670A patent/GB1354681A/en not_active Expired
-
1971
- 1971-03-22 IL IL36468A patent/IL36468A/en unknown
- 1971-03-26 CA CA108817A patent/CA937971A/en not_active Expired
- 1971-03-29 FR FR7110950A patent/FR2083267A5/fr not_active Expired
- 1971-03-31 US US129824A patent/US3890541A/en not_active Expired - Lifetime
- 1971-03-31 SE SE7104191A patent/SE379257B/xx unknown
- 1971-04-01 BE BE765138A patent/BE765138A/en unknown
- 1971-04-01 CH CH477771A patent/CH539337A/en not_active IP Right Cessation
- 1971-04-02 NL NL7104470A patent/NL7104470A/xx unknown
- 1971-04-02 DE DE19712116288 patent/DE2116288A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2116288A1 (en) | 1971-10-21 |
| BE765138A (en) | 1971-08-30 |
| FR2083267A5 (en) | 1971-12-10 |
| CH539337A (en) | 1973-07-15 |
| SE379257B (en) | 1975-09-29 |
| US3890541A (en) | 1975-06-17 |
| IL36468A (en) | 1973-10-25 |
| NL7104470A (en) | 1971-10-05 |
| IL36468A0 (en) | 1971-05-26 |
| CA937971A (en) | 1973-12-04 |
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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 |