GB1340456A - Cathode ray display device - Google Patents
Cathode ray display deviceInfo
- Publication number
- GB1340456A GB1340456A GB578972*[A GB1340456DA GB1340456A GB 1340456 A GB1340456 A GB 1340456A GB 1340456D A GB1340456D A GB 1340456DA GB 1340456 A GB1340456 A GB 1340456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathodes
- multiplier
- cathode
- emission
- screen
- 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
- 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
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
- H01J31/506—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect
- H01J31/507—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect using a large number of channels, e.g. microchannel plates
-
- 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
- H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
- H01J31/127—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using large area or array sources, i.e. essentially a source for each pixel group
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/34—Photoemissive electrodes
- H01J2201/342—Cathodes
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
1340456 Cathode ray display tubes MULLARD Ltd 31 Aug 1972 [8 Feb 1972] 5789/72 Heading H1D A display device suitable for alpha-numeric display comprises an array of selectively controlled photo-cathodes the emission from which is amplified by a channel multiplier and fed to a luminescent screen, optical feedback being provided from the screen to the cathodes so that a pattern remains displayed until altered. In the arrangement described the cathodes form a 7 x 5 rectangular array, and each cathode is mounted on a metal substrate provided with an individual input connection and disposed in a shallow cavity in an insulating block. If a photo-cathode is at a potential equal to or more negative than the input surface of the multiplier, its emission (stimulated initially by stray electrons and/or photons) will cause the illumination of a picture point on the screen; if the potential of the cathode is raised 2-5 volts positive its emission is unable to reach the input of the multiplier, and the cathodes may be switched by means of integrated circuits. A cross-bar addressing system may be used if the channels in the multiplier are connected together in rows whilst the cathodes are connected together in columns. A colour display may be provided by using discrete phosphors of different colours for the luminescent screen.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB578972 | 1972-02-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1340456A true GB1340456A (en) | 1973-12-12 |
Family
ID=9802662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB578972*[A Expired GB1340456A (en) | 1972-02-08 | 1972-08-31 | Cathode ray display device |
Country Status (5)
Country | Link |
---|---|
US (1) | US3825922A (en) |
JP (1) | JPS4893259A (en) |
DE (1) | DE2257234A1 (en) |
FR (1) | FR2171212A1 (en) |
GB (1) | GB1340456A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131225A (en) * | 1982-11-18 | 1984-06-13 | Secr Defence | Flood gun crt information display device |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1406131A (en) * | 1973-05-23 | 1975-09-17 | Meiling J | Production of wax patterns |
US4034255A (en) * | 1975-11-28 | 1977-07-05 | Rca Corporation | Vane structure for a flat image display device |
US4029984A (en) * | 1975-11-28 | 1977-06-14 | Rca Corporation | Fluorescent discharge cold cathode for an image display device |
GB1528679A (en) * | 1975-12-10 | 1978-10-18 | Bosch Gmbh Robert | Image converter or intensifier device |
US4031552A (en) * | 1976-03-05 | 1977-06-21 | The United States Of America As Represented By The Secretary Of The Army | Miniature flat panel photocathode and microchannel plate picture element array image intensifier tube |
US4051468A (en) * | 1976-07-28 | 1977-09-27 | Rca Corporation | Apparatus and method for modulating a flat panel display device |
US4142123A (en) * | 1977-02-10 | 1979-02-27 | Rca Corporation | Image display device with optical feedback to cathode |
US4156827A (en) * | 1978-06-19 | 1979-05-29 | The United States Of America As Represented By The Secretary Of The Army | Matrix cathode channel image device |
US4280125A (en) * | 1979-07-27 | 1981-07-21 | Xerox Corporation | Thin vacuum panel display device |
SE425822B (en) * | 1981-04-02 | 1982-11-08 | Asea Ab | DEVICE FOR CONVERTING INFORMATION IN ELECTRICAL FORM TO OPTICAL FORM AND / OR VICE VERSA |
US4531122A (en) * | 1982-07-14 | 1985-07-23 | Redfield Lawrence J | Flatscreen |
US4636629A (en) * | 1985-04-02 | 1987-01-13 | Galileo Electro-Optics Corp. | Image-storage microchannel device with gating means for selective ion feedback |
GB2180394A (en) * | 1985-09-11 | 1987-03-25 | Philips Electronic Associated | Cathode ray display tubes |
US4948965A (en) * | 1989-02-13 | 1990-08-14 | Galileo Electro-Optics Corporation | Conductively cooled microchannel plates |
FR2698201B1 (en) * | 1992-11-13 | 1994-12-16 | Commissariat Energie Atomique | Multiplex type matrix display screen and its control method. |
HUP0104625A2 (en) * | 2001-10-31 | 2003-06-28 | Zoltán Németh | Combined electronical and optical addressing, display and camera with such addressing |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3132325A (en) * | 1959-09-24 | 1964-05-05 | Gen Electric | Electro-optical shift register |
US3408532A (en) * | 1965-12-06 | 1968-10-29 | Northrop Corp | Electron beam scanning device |
US3723977A (en) * | 1969-12-08 | 1973-03-27 | Owens Illinois Inc | Gas discharge panel with photoconductive material |
-
1972
- 1972-08-31 GB GB578972*[A patent/GB1340456A/en not_active Expired
- 1972-11-22 DE DE2257234A patent/DE2257234A1/en active Pending
-
1973
- 1973-01-22 US US00325852A patent/US3825922A/en not_active Expired - Lifetime
- 1973-02-05 JP JP48013878A patent/JPS4893259A/ja active Pending
- 1973-02-07 FR FR7304232A patent/FR2171212A1/fr not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131225A (en) * | 1982-11-18 | 1984-06-13 | Secr Defence | Flood gun crt information display device |
Also Published As
Publication number | Publication date |
---|---|
DE2257234A1 (en) | 1973-08-23 |
US3825922A (en) | 1974-07-23 |
JPS4893259A (en) | 1973-12-03 |
FR2171212A1 (en) | 1973-09-21 |
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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 |