GB1024257A - Television method and apparatus - Google Patents
Television method and apparatusInfo
- Publication number
- GB1024257A GB1024257A GB4102862A GB4102862A GB1024257A GB 1024257 A GB1024257 A GB 1024257A GB 4102862 A GB4102862 A GB 4102862A GB 4102862 A GB4102862 A GB 4102862A GB 1024257 A GB1024257 A GB 1024257A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rbhdl
- zns
- differences
- hex
- response
- 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
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 2
- 229910001634 calcium fluoride Inorganic materials 0.000 abstract 2
- 230000005855 radiation Effects 0.000 abstract 2
- 239000011780 sodium chloride Substances 0.000 abstract 2
- 229910020489 SiO3 Inorganic materials 0.000 abstract 1
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000007792 addition Methods 0.000 abstract 1
- 239000003086 colorant Substances 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000002574 poison Substances 0.000 abstract 1
- 231100000614 poison Toxicity 0.000 abstract 1
- 229910052844 willemite Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/16—Picture reproducers using cathode ray tubes
-
- 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
- H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)
-
- 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
- H01J29/30—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines
- H01J29/32—Luminescent screens with luminescent material discontinuously arranged, e.g. in dots, in lines with adjacent dots or lines of different luminescent material, e.g. for colour television
-
- 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
- H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Luminescent Compositions (AREA)
Abstract
The target screen of a cathode-ray tube has two types of luminescent elements arranged to emit light differentially in response to differences in irradiation, the first of said elements emitting light substantially of a single colour and the second capable of emitting light of different colours in response to differences in applied radiation current density. The first element may emit light of a predominantly reddish colour and the second emitting blue at low and yellow at high radiation levels, the combination of phosphosphorus being arranged to emit efficiently at low and high levels respectively and inefficiently otherwise, examples of such pair of phosphors being rbhdl.-Zn2SiO4:Ti or monocl.-C9Mg (SiO3)2:Ti with rbhdl.-Zn8BeSi5O19:Mu or (Zu:Cd)(S)Ag and Zn8 BeSi5O19:Mu. In another combination Hex-ZnS:Ag(0.015) is combined with Hex-1.3 ZnS.CdS:Ag (0.01) with suitable additions of iron cobalt nickel or other poisons to give nonlinearity, which may also be given by the choice of flux, e.g. (ZnCdS:Cu) prepared with calcium fluoride (C9F2) instead of sodium chloride (NaCl). The first element may be composed of rbhdl.-Zn8BeSi5O19:Mu (2.4) with red optical filter or Cd2B2O5:Mu.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15228361A | 1961-11-14 | 1961-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1024257A true GB1024257A (en) | 1966-03-30 |
Family
ID=22542261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4102862A Expired GB1024257A (en) | 1961-11-14 | 1962-10-30 | Television method and apparatus |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE624799A (en) |
| DE (1) | DE1285510B (en) |
| GB (1) | GB1024257A (en) |
| NL (1) | NL285094A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129205A (en) * | 1982-10-22 | 1984-05-10 | Philips Electronic Associated | Colour display tube |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE676054C (en) * | 1937-09-12 | 1939-05-24 | Karl Heinz Kerber | Television transmission method for colored pictures |
| US2566713A (en) * | 1947-04-04 | 1951-09-04 | Rca Corp | Color television |
| US2543477A (en) * | 1948-07-29 | 1951-02-27 | Rca Corp | Kinescope for the reproduction of color images |
-
0
- BE BE624799D patent/BE624799A/xx unknown
- NL NL285094D patent/NL285094A/xx unknown
-
1962
- 1962-10-30 GB GB4102862A patent/GB1024257A/en not_active Expired
- 1962-11-13 DE DE1962I0022646 patent/DE1285510B/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129205A (en) * | 1982-10-22 | 1984-05-10 | Philips Electronic Associated | Colour display tube |
Also Published As
| Publication number | Publication date |
|---|---|
| NL285094A (en) | |
| BE624799A (en) | |
| DE1285510B (en) | 1968-12-19 |
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