GB851159A - Improvements relating to cathode ray tubes - Google Patents

Improvements relating to cathode ray tubes

Info

Publication number
GB851159A
GB851159A GB14025/58A GB1402558A GB851159A GB 851159 A GB851159 A GB 851159A GB 14025/58 A GB14025/58 A GB 14025/58A GB 1402558 A GB1402558 A GB 1402558A GB 851159 A GB851159 A GB 851159A
Authority
GB
United Kingdom
Prior art keywords
target
screen
beams
ray tubes
superimposed
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
Application number
GB14025/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by National Research Development Corp UK filed Critical National Research Development Corp UK
Publication of GB851159A publication Critical patent/GB851159A/en
Expired legal-status Critical Current

Links

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
    • 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
    • H01J31/124—Flat display tubes using electron beam scanning

Abstract

851,159. Cathode-ray tubes. NATIONAL RESEARCH DEVELOPMENT CORPORATION. May 2, 1958 [May 3, 1957], No. 14025/58. Class 39(1). In a colour display cathode-ray tube, e.g. for television or radar, in which the beam penetrates a screen consisting of superimposed luminescent layers to varying extents, the depth of penetration is controlled by varying the angle of incidence of the beam on the screen. The invention is described with reference to the "flat" tube of Specifications 794,257 and 801,841 and three beams or a single beam may be used. In one embodiment, Fig. 4, two beams 14, 16 impart two superimposed phosphor layers 36, 38 on one side of the target 34 and a third beam 16 imparts a single phosphor layer 40 on the other side of the target. In Fig. 7 a grid 82 is provided in front of the target 34 to control further the entrance angle of the beams 14, 16, 18. The screen may be provided with an aluminium layer to absorb secondary electrons and secondary or scattered electrons may be collected by rods disposed at one end of the target in order to derive a signal from the screen.
GB14025/58A 1957-05-03 1958-05-08 Improvements relating to cathode ray tubes Expired GB851159A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US656874A US2930930A (en) 1957-05-03 1957-05-03 Electronic device

Publications (1)

Publication Number Publication Date
GB851159A true GB851159A (en) 1960-10-12

Family

ID=24634938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14025/58A Expired GB851159A (en) 1957-05-03 1958-05-08 Improvements relating to cathode ray tubes

Country Status (5)

Country Link
US (1) US2930930A (en)
DE (1) DE1074631B (en)
FR (1) FR1206056A (en)
GB (1) GB851159A (en)
NL (2) NL227467A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404884A1 (en) * 1977-10-03 1979-04-27 Rca Corp IMPROVEMENTS TO ELECTRONIC DISPLAY DEVICES WITH BEAM CONVERGENCE

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1228346B (en) * 1961-07-12 1966-11-10 Werk Signal Sicherungstech Veb Multiple cathode ray tubes for displaying numbers or letters
US4137485A (en) * 1977-04-01 1979-01-30 Rca Corporation Image display block scanning method
GB2071402B (en) * 1980-03-05 1983-09-21 Philips Electronic Associated Flat cathode ray tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455710A (en) * 1943-12-21 1948-12-07 Rauland Corp Color television system
FR957706A (en) * 1946-12-26 1950-02-24
US2566713A (en) * 1947-04-04 1951-09-04 Rca Corp Color television
NL90351C (en) * 1952-09-15
US2795729A (en) * 1952-09-15 1957-06-11 Nat Res Dev Cathode ray tube
US2795731A (en) * 1953-05-19 1957-06-11 Kaiser Aircraft & Electronics Cathode ray tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404884A1 (en) * 1977-10-03 1979-04-27 Rca Corp IMPROVEMENTS TO ELECTRONIC DISPLAY DEVICES WITH BEAM CONVERGENCE

Also Published As

Publication number Publication date
NL227467A (en)
DE1074631B (en) 1960-02-04
NL112441C (en)
FR1206056A (en) 1960-02-08
US2930930A (en) 1960-03-29

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