FR1087508A - Improvements to cathode ray tubes and similar devices - Google Patents

Improvements to cathode ray tubes and similar devices

Info

Publication number
FR1087508A
FR1087508A FR1087508DA FR1087508A FR 1087508 A FR1087508 A FR 1087508A FR 1087508D A FR1087508D A FR 1087508DA FR 1087508 A FR1087508 A FR 1087508A
Authority
FR
France
Prior art keywords
cathode ray
similar devices
ray tubes
tubes
similar
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
Other languages
French (fr)
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.)
Compagnie des Lampes
Original Assignee
Compagnie des Lampes
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 Compagnie des Lampes filed Critical Compagnie des Lampes
Application granted granted Critical
Publication of FR1087508A publication Critical patent/FR1087508A/en
Expired legal-status Critical Current

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
    • H01J29/84—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection
    • H01J29/845—Traps for removing or diverting unwanted particles, e.g. negative ions, fringing electrons; Arrangements for velocity or mass selection by means of magnetic systems
FR1087508D 1952-09-04 1953-09-03 Improvements to cathode ray tubes and similar devices Expired FR1087508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US307761A US2707246A (en) 1952-09-04 1952-09-04 Combination focusing-ion trap structures for cathode-ray tubes

Publications (1)

Publication Number Publication Date
FR1087508A true FR1087508A (en) 1955-02-24

Family

ID=23191076

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1087508D Expired FR1087508A (en) 1952-09-04 1953-09-03 Improvements to cathode ray tubes and similar devices

Country Status (3)

Country Link
US (1) US2707246A (en)
DE (1) DE930996C (en)
FR (1) FR1087508A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL95815C (en) * 1954-03-11
US2876372A (en) * 1954-11-19 1959-03-03 Hazeltine Research Inc Color-image-reproducing apparatus
US2790920A (en) * 1955-05-09 1957-04-30 Philco Corp Apparatus for control of electron beam cross section
US2884551A (en) * 1955-06-29 1959-04-28 Westinghouse Electric Corp Cathode ray tube
US3119988A (en) * 1955-12-01 1964-01-28 Leonard D Barry Magnetic recorder for symbols
US2972074A (en) * 1959-10-14 1961-02-14 Philco Corp Magnetic beam-controlling means for cathode ray tubes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB480948A (en) * 1936-07-25 1938-02-25 Frederick Hermes Nicoll Improvements in or relating to cathode ray tubes
US2211613A (en) * 1936-08-14 1940-08-13 Hygrade Sylvania Corp Cathode ray tube
BE470212A (en) * 1946-01-24
US2460609A (en) * 1946-01-24 1949-02-01 Rca Corp Beam aligning apparatus
US2456474A (en) * 1946-07-02 1948-12-14 Gen Electric Electric discharge device
US2496127A (en) * 1947-02-05 1950-01-31 Rca Corp Electron gun for cathode-ray tubes
US2522872A (en) * 1949-01-10 1950-09-19 Heppner Mfg Company Device for controlling the path of travel of electrons in cathoderay tubes
US2582402A (en) * 1950-09-29 1952-01-15 Rauland Corp Ion trap type electron gun

Also Published As

Publication number Publication date
DE930996C (en) 1955-07-28
US2707246A (en) 1955-04-26

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