GB655681A - Improvements in or relating to color television - Google Patents

Improvements in or relating to color television

Info

Publication number
GB655681A
GB655681A GB33826/47A GB3382647A GB655681A GB 655681 A GB655681 A GB 655681A GB 33826/47 A GB33826/47 A GB 33826/47A GB 3382647 A GB3382647 A GB 3382647A GB 655681 A GB655681 A GB 655681A
Authority
GB
United Kingdom
Prior art keywords
sets
right angles
screen
electrons
fluorescing
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
GB33826/47A
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.)
Allen B du Mont Laboratories Inc
Original Assignee
Allen B du Mont Laboratories Inc
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 Allen B du Mont Laboratories Inc filed Critical Allen B du Mont Laboratories Inc
Publication of GB655681A publication Critical patent/GB655681A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

655,681. Cathode-ray tubes. DU MONT LABORATORIES, Inc., A. B. Dec. 22, 1947, No. 33826. Convention date, Dec. 26, 1946. [Class 39 (i)] A fluorescent screen for use in a receiving tube for colour television has at least three sets of surfaces 5, 6, 7 on one side of it, the surfaces of each set being substantially parallel to each other and being non- coplanar with the surfaces of the other sets, the surfaces of each set fluorescing with a different colour when struck by an electron beam. Preferably there are three sets of surfaces, as in the Figure, each at right angles to the others and each fluorescing with one primary colour, such as green, red and blue. The screen may be arranged in a cathode-ray tube with three electron guns, an electron gun being arranged to fire a beam of electrons at right angles to each set of surfaces. Preferably the surfaces are coated with a thin layer of aluminium so that electrons striking the surfaces at right angles will penetrate the aluminium, but electrons striking at an acute angle will not. The other side of the screen may be provided with lenses, each lens being the size of a group of three surfaces, one from each set.
GB33826/47A 1946-12-26 1947-12-22 Improvements in or relating to color television Expired GB655681A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US718364A US2544690A (en) 1946-12-26 1946-12-26 Color television

Publications (1)

Publication Number Publication Date
GB655681A true GB655681A (en) 1951-08-01

Family

ID=24885821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33826/47A Expired GB655681A (en) 1946-12-26 1947-12-22 Improvements in or relating to color television

Country Status (3)

Country Link
US (1) US2544690A (en)
FR (1) FR957706A (en)
GB (1) GB655681A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677073A (en) * 1947-12-02 1954-04-27 Du Mont Allen B Lab Inc Control device for simultaneous color television
US2622220A (en) * 1949-03-22 1952-12-16 Technicolor Motion Picture Television color screen
US2605434A (en) * 1949-12-08 1952-07-29 John H Homrighous Single beam three color cathoderay tube
US2577368A (en) * 1950-02-14 1951-12-04 Charles Doerr Color television receiving apparatus
US2633547A (en) * 1950-06-30 1953-03-31 Rca Corp Two-sided electron-sensitive screen
US2606303A (en) * 1951-02-17 1952-08-05 Bramley Jenny Color television tube and process
NL168576B (en) * 1951-04-04 Teutonia Cementwerk METHOD OF FIRMING SOIL.
US2769111A (en) * 1951-07-25 1956-10-30 Philco Corp Optical system
US3011090A (en) * 1952-06-24 1961-11-28 Rca Corp Plural beam tube
NL227467A (en) * 1957-05-03
NL262100A (en) * 1960-03-14
US3184630A (en) * 1960-07-12 1965-05-18 Geer Charles Willard Three-dimensional display apparatus
US3226596A (en) * 1963-06-21 1965-12-28 Kasperowicz Henry Flat color cathode ray tube
US4494865A (en) * 1982-12-13 1985-01-22 Battelle Development Corporation Providing patterns

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2029639A (en) * 1931-12-24 1936-02-04 Schlesinger Kurt Braun tube
GB426138A (en) * 1932-10-01 1935-03-28 Loewe Opta Gmbh Braun tube
US2121356A (en) * 1934-02-02 1938-06-21 Telefunken Gmbh Electron tube
US2195455A (en) * 1936-03-04 1940-04-02 Telefunken Gmbh Electronic system
US2201245A (en) * 1936-11-17 1940-05-21 Firm Fernseh Aktien Ges Cathode ray projection tube
US2170944A (en) * 1937-05-29 1939-08-29 Bell Telephone Labor Inc Multicathode ray discharge device
NL54042C (en) * 1937-10-26
NL57152C (en) * 1937-12-24
BE425884A (en) * 1938-01-20
USRE22734E (en) * 1938-02-03 1946-03-19 Television receiving system
US2280191A (en) * 1939-09-30 1942-04-21 Hazeltine Corp Cathode-ray signal-reproducing unit
US2289978A (en) * 1940-11-30 1942-07-14 Rca Corp Television picture tube screen
US2310863A (en) * 1941-01-25 1943-02-09 Rca Corp Luminescent screen
US2337980A (en) * 1941-04-26 1943-12-28 Du Mont Allen B Lab Inc System for color television receivers
US2312792A (en) * 1941-08-14 1943-03-02 Farnsworth Television Color television system
US2415311A (en) * 1942-05-13 1947-02-04 Rauland Corp Cathode-ray tube projector
GB562168A (en) * 1942-07-25 1944-06-21 John Logie Baird Improvements in colour television

Also Published As

Publication number Publication date
US2544690A (en) 1951-03-13
FR957706A (en) 1950-02-24

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