FR1274875A - Perfectionnements aux lentilles électroniques - Google Patents

Perfectionnements aux lentilles électroniques

Info

Publication number
FR1274875A
FR1274875A FR844790A FR844790A FR1274875A FR 1274875 A FR1274875 A FR 1274875A FR 844790 A FR844790 A FR 844790A FR 844790 A FR844790 A FR 844790A FR 1274875 A FR1274875 A FR 1274875A
Authority
FR
France
Prior art keywords
enhancements
electronic lens
lens
electronic
lens enhancements
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
FR844790A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1274875A publication Critical patent/FR1274875A/fr
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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/626—Electrostatic lenses producing fields exhibiting periodic axial symmetry, e.g. multipolar fields
    • H01J29/628—Electrostatic lenses producing fields exhibiting periodic axial symmetry, e.g. multipolar fields co-operating with or closely associated to an electron gun
FR844790A 1959-11-25 1960-11-23 Perfectionnements aux lentilles électroniques Expired FR1274875A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB40011/59A GB889005A (en) 1959-11-25 1959-11-25 Improvements in or relating to electron lenses

Publications (1)

Publication Number Publication Date
FR1274875A true FR1274875A (fr) 1961-10-27

Family

ID=10412710

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844790A Expired FR1274875A (fr) 1959-11-25 1960-11-23 Perfectionnements aux lentilles électroniques

Country Status (6)

Country Link
US (1) US3176181A (fr)
CH (1) CH404815A (fr)
DE (1) DE1212645B (fr)
FR (1) FR1274875A (fr)
GB (1) GB889005A (fr)
NL (1) NL258205A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358743A1 (fr) * 1976-07-13 1978-02-10 Philips Nv Lentille electronique astigmate, tube cathodique equipe d'une telle lentille, et dispositif comportant un tel tube

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610992A (en) * 1968-12-19 1971-10-05 Sony Corp Cathode-ray tube having end electrodes of three electrodes connected by helical coil coaxial with tube axis
US3876898A (en) * 1974-06-27 1975-04-08 Gte Sylvania Inc Shielding means for a cathode ray tube
NL175002C (nl) * 1977-11-24 1984-09-03 Philips Nv Kathodestraalbuis met tenminste een elektronenkanon.
DE2753412C2 (de) * 1977-11-30 1983-06-23 Max Planck Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Rotationssymmetrischer Ionen-Elektronen-Konverter
DE4422440A1 (de) * 1994-06-29 1996-01-04 Osaulenko Nikolaj Fedorowitsc Vorrichtung zur Aufzeichnung und Wiedergabe hochfrequenter Signale

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE527820A (fr) * 1953-04-03
US3069588A (en) * 1958-09-26 1962-12-18 Raytheon Co Traveling wave tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2358743A1 (fr) * 1976-07-13 1978-02-10 Philips Nv Lentille electronique astigmate, tube cathodique equipe d'une telle lentille, et dispositif comportant un tel tube

Also Published As

Publication number Publication date
DE1212645B (de) 1966-03-17
NL258205A (fr)
US3176181A (en) 1965-03-30
GB889005A (en) 1962-02-07
CH404815A (de) 1965-12-31

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