GB1102136A - Improvement in colour television receiver tubes - Google Patents
Improvement in colour television receiver tubesInfo
- Publication number
- GB1102136A GB1102136A GB21234/66A GB2123466A GB1102136A GB 1102136 A GB1102136 A GB 1102136A GB 21234/66 A GB21234/66 A GB 21234/66A GB 2123466 A GB2123466 A GB 2123466A GB 1102136 A GB1102136 A GB 1102136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diameter
- blue
- guns
- gun
- red
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/2222—Prompting
-
- 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
- H01J29/48—Electron guns
- H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
-
- 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
- H01J31/201—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 using a colour-selection electrode
- H01J31/203—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 using a colour-selection electrode with more than one electron beam
- H01J31/206—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 using a colour-selection electrode with more than one electron beam with three coplanar electron beams
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Optical Filters (AREA)
- Glass Compositions (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
1,102,136. Colour television tubes. COMPAGNIE FRANCAISE DE TELEVISION. 12 May, 1966 [20 May, 1965], No. 21234/66. Heading .H1D. A colour television cathode-ray tube incorporates a screen with red, green and blue luminescent phosphor strips or dots and three adjacent electron guns of substantially equal length, adapted to emit high-intensity electron beams (e.g. 100 ÁA.) toward the different phosphors, respectively, wherein the diameter of the gun (defined as the largest diameter among the cylindrically shaped control, acceleration or focussing electrodes), associated with the blue phosphors is smaller (4 to 5 mm. diameter, for example) than that of the other two guns, 8 to 9 mm. diameter, for example. To promote compactness the blue gun diameter can be reduced below, and spot size proportionately increased above, the normally acceptable values since the brightness of the picture is provided essentially by the red and green components except in large areas of sea, sky and the like where good definition is not important. The axes of the three guns may be substantially aligned with the blue gun in the central position, or the blue gun may be displaced to allow the red and green guns to be mutually closer for instance. Reference is made to oblique phosphor strips horizontally swept by the three beams.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR17727A FR1444190A (en) | 1965-05-20 | 1965-05-20 | Improvements to color television receiver tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1102136A true GB1102136A (en) | 1968-02-07 |
Family
ID=8579250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21234/66A Expired GB1102136A (en) | 1965-05-20 | 1966-05-12 | Improvement in colour television receiver tubes |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3393336A (en) |
| AT (1) | AT259642B (en) |
| BE (1) | BE680667A (en) |
| CH (1) | CH435367A (en) |
| ES (1) | ES326883A1 (en) |
| FR (1) | FR1444190A (en) |
| GB (1) | GB1102136A (en) |
| NL (1) | NL6606940A (en) |
| SE (1) | SE300839B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3579016A (en) * | 1967-10-23 | 1971-05-18 | Gen Telephone & Elect | Postdeflection tube with all rare earth phosphors |
| JPS4826175B1 (en) * | 1969-02-17 | 1973-08-07 | ||
| JPS5713985B2 (en) * | 1971-08-27 | 1982-03-20 | ||
| US4181870A (en) * | 1978-03-08 | 1980-01-01 | Zenith Radio Corporation | Assembly of electron guns having different gamma values |
| KR900002777B1 (en) * | 1986-11-29 | 1990-04-30 | 주식회사 금성사 | Multiple Horizontal Frequency Drives for Monitors |
| US6144143A (en) * | 1998-02-03 | 2000-11-07 | Horng; Herng-Er | Cyclotron displays |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2951178A (en) * | 1955-01-07 | 1960-08-30 | Philco Corp | Multi-beam cathode-ray tube transducer |
| GB821542A (en) * | 1955-02-12 | 1959-10-07 | Emi Ltd | Improvements in or relating to cathode ray tubes |
| NL197194A (en) * | 1955-05-12 | |||
| US2850658A (en) * | 1956-02-21 | 1958-09-02 | Rca Corp | Non-symmetrical cathodes in cathode ray tubes |
-
1965
- 1965-05-20 FR FR17727A patent/FR1444190A/en not_active Expired
-
1966
- 1966-05-06 BE BE680667D patent/BE680667A/xx not_active IP Right Cessation
- 1966-05-12 GB GB21234/66A patent/GB1102136A/en not_active Expired
- 1966-05-17 US US550819A patent/US3393336A/en not_active Expired - Lifetime
- 1966-05-18 AT AT474666A patent/AT259642B/en active
- 1966-05-18 SE SE6903/66A patent/SE300839B/xx unknown
- 1966-05-18 CH CH722366A patent/CH435367A/en unknown
- 1966-05-18 ES ES0326883A patent/ES326883A1/en not_active Expired
- 1966-05-20 NL NL6606940A patent/NL6606940A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT259642B (en) | 1968-01-25 |
| FR1444190A (en) | 1966-07-01 |
| NL6606940A (en) | 1966-11-21 |
| DE1462481A1 (en) | 1968-12-05 |
| DE1462481B2 (en) | 1975-10-23 |
| ES326883A1 (en) | 1967-03-16 |
| CH435367A (en) | 1967-05-15 |
| SE300839B (en) | 1968-05-13 |
| US3393336A (en) | 1968-07-16 |
| BE680667A (en) | 1966-10-17 |
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