GB806510A - Improvements in or relating to colour-television cathode-ray tubes - Google Patents
Improvements in or relating to colour-television cathode-ray tubesInfo
- Publication number
- GB806510A GB806510A GB25207/57A GB2520757A GB806510A GB 806510 A GB806510 A GB 806510A GB 25207/57 A GB25207/57 A GB 25207/57A GB 2520757 A GB2520757 A GB 2520757A GB 806510 A GB806510 A GB 806510A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strips
- electrodes
- colour
- aug
- phosphors
- 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
- H01J29/02—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2231/00—Cathode ray tubes or electron beam tubes
- H01J2231/12—CRTs having luminescent screens
- H01J2231/121—Means for indicating the position of the beam, e.g. beam indexing
Landscapes
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
806,510. Colour television tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 9, 1957. [Aug. 13, 1956], No. 25207/57. Class 39(1). A cathode ray tube having grouped, substantially parallel strips of phosphor luminescing in various colours on electron impact is provided in each group, or a multiple thereof, with the same number of indexing strips of a material whose specific conductivity varies upon electron impact, these strips being arranged between two electrodes. One of the particular phosphors itself may be of such a material, or the material may be mixed with a particular colour phosphor. Alternatively the material may be located in separate strips 13, Fig. 5, between each group of colour phosphors, 7, 9, 11. As shown the strips 13 are provided with individual electrode strips 43, 45 of which the electrode strips 43 are electron pervious and the electrodes 45 are of conducting transparent material, a common supply wire being connected to each set 43, 45 and the pulses induced by the scanning beam appearing as an increased current in the resistor 53. Instead of individual electrodes 43, 45 either set, or both, may be united to form an uninterrupted layer. The electrodes 43 may be of aluminium and the electrodes 45 of tin oxide.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL806510X | 1956-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB806510A true GB806510A (en) | 1958-12-23 |
Family
ID=19836621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25207/57A Expired GB806510A (en) | 1956-08-13 | 1957-08-09 | Improvements in or relating to colour-television cathode-ray tubes |
Country Status (5)
Country | Link |
---|---|
US (1) | US2926283A (en) |
DE (1) | DE1041525B (en) |
FR (1) | FR1192944A (en) |
GB (1) | GB806510A (en) |
NL (2) | NL110942C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122415A (en) * | 1982-06-04 | 1984-01-11 | Marconi Avionics | Colour cathode ray indexing tubes and display systems using such tubes |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1270077B (en) * | 1966-11-10 | 1968-06-12 | Werk Fernsehelektronik Veb | Procedure for avoiding color defects in color television picture tubes |
US4107570A (en) * | 1973-03-12 | 1978-08-15 | Washburn Clayton A | Cathode ray tube indexing structures |
DE3006943A1 (en) * | 1980-02-25 | 1981-09-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Colour TV tube with index targetting control - has light emitting reference strips between three colour phosphors and photocells to detect emissions |
US4871949A (en) * | 1987-01-23 | 1989-10-03 | Albert Abramson | Cathode ray tube |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB417679A (en) * | 1933-04-27 | 1934-10-10 | Cossor Ltd A C | Improvements in or relating to fluorescent screens for use in television systems |
US2446440A (en) * | 1947-01-28 | 1948-08-03 | Rca Corp | Color television tube |
US2725420A (en) * | 1951-07-20 | 1955-11-29 | Rca Corp | Color television image reproduction |
US2723361A (en) * | 1952-01-02 | 1955-11-08 | Du Mont Allen B Lab Inc | Cathode ray tube |
US2768318A (en) * | 1952-10-03 | 1956-10-23 | Philco Corp | Screen structure for cathode ray tubes |
US2792522A (en) * | 1953-09-18 | 1957-05-14 | Westinghouse Electric Corp | Color television tube |
US2767346A (en) * | 1953-10-05 | 1956-10-16 | Hoyt Karl Robert | Apparatus and method for regulating television target potential |
US2790930A (en) * | 1955-02-21 | 1957-04-30 | Meguer V Kalfaian | Color television image tube and system therefor |
-
0
- NL NL209771D patent/NL209771A/xx unknown
- NL NL110942D patent/NL110942C/xx active
-
1957
- 1957-07-22 US US673363A patent/US2926283A/en not_active Expired - Lifetime
- 1957-08-09 GB GB25207/57A patent/GB806510A/en not_active Expired
- 1957-08-09 DE DEN13983A patent/DE1041525B/en active Pending
- 1957-08-12 FR FR1192944D patent/FR1192944A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122415A (en) * | 1982-06-04 | 1984-01-11 | Marconi Avionics | Colour cathode ray indexing tubes and display systems using such tubes |
Also Published As
Publication number | Publication date |
---|---|
NL110942C (en) | |
NL209771A (en) | |
DE1041525B (en) | 1958-10-23 |
US2926283A (en) | 1960-02-23 |
FR1192944A (en) | 1959-10-29 |
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