GB1166599A - Improvements in or relating to Cathodoluminescent Indicator Tubes - Google Patents
Improvements in or relating to Cathodoluminescent Indicator TubesInfo
- Publication number
- GB1166599A GB1166599A GB3933968A GB3933968A GB1166599A GB 1166599 A GB1166599 A GB 1166599A GB 3933968 A GB3933968 A GB 3933968A GB 3933968 A GB3933968 A GB 3933968A GB 1166599 A GB1166599 A GB 1166599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grooves
- luminescent material
- relating
- aug
- edges
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
-
- 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
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/18—Luminescent screens
-
- 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
- H01J31/15—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen with ray or beam selectively directed to luminescent anode segments
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
1,166,599. Cathode ray tubes. NIPPON ELECTRIC CO. Ltd. 16 Aug., 1968 [19 Aug., 1967], No. 39339/68. Heading H1D. The luminescent screen of a numerical display tube comprises a base-plate formed with a number of grooves corresponding to segments of the numbers to be displayed, each groove containing luminescent material. Since the edges of the luminescent material are clearly defined by the edges of the grooves, the usual masking electrode is unnecessary. The baseplate may be of glass or ceramic in which the grooves are formed by etching, after which the grooves are coated with a conductive coating on which the fluorescent material is deposited by sedimentation. In an alternative the base-plate may be of metal with the luminescent material deposited in grooves formed in the metal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5316167 | 1967-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1166599A true GB1166599A (en) | 1969-10-08 |
Family
ID=12935112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3933968A Expired GB1166599A (en) | 1967-08-19 | 1968-08-16 | Improvements in or relating to Cathodoluminescent Indicator Tubes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1166599A (en) |
-
1968
- 1968-08-16 GB GB3933968A patent/GB1166599A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |