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GB574056A - Improvements in electron lenses - Google Patents

Improvements in electron lenses

Info

Publication number
GB574056A
GB574056A GB4628/42A GB462842A GB574056A GB 574056 A GB574056 A GB 574056A GB 4628/42 A GB4628/42 A GB 4628/42A GB 462842 A GB462842 A GB 462842A GB 574056 A GB574056 A GB 574056A
Authority
GB
United Kingdom
Prior art keywords
electrode
curved
electrodes
edges
slot
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
GB4628/42A
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.)
Individual
Original Assignee
Individual
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
Priority to NL82605D priority Critical patent/NL82605C/xx
Application filed by Individual filed Critical Individual
Priority to GB4628/42A priority patent/GB574056A/en
Priority to US528994A priority patent/US2412687A/en
Priority to FR922408D priority patent/FR922408A/fr
Publication of GB574056A publication Critical patent/GB574056A/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
    • H01J29/46—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

Landscapes

  • Electron Beam Exposure (AREA)
GB4628/42A 1942-04-08 1942-04-08 Improvements in electron lenses Expired GB574056A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL82605D NL82605C (da) 1942-04-08
GB4628/42A GB574056A (en) 1942-04-08 1942-04-08 Improvements in electron lenses
US528994A US2412687A (en) 1942-04-08 1944-03-31 Electron lens
FR922408D FR922408A (fr) 1942-04-08 1945-11-09 Lentille électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4628/42A GB574056A (en) 1942-04-08 1942-04-08 Improvements in electron lenses

Publications (1)

Publication Number Publication Date
GB574056A true GB574056A (en) 1945-12-19

Family

ID=9780752

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4628/42A Expired GB574056A (en) 1942-04-08 1942-04-08 Improvements in electron lenses

Country Status (4)

Country Link
US (1) US2412687A (da)
FR (1) FR922408A (da)
GB (1) GB574056A (da)
NL (1) NL82605C (da)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729932A1 (de) * 1976-07-13 1978-01-19 Philips Nv Kathodenstrahlroehre mit einer astigmatischen elektronenlinse

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2455676A (en) * 1946-05-21 1948-12-07 Rca Corp Electron lens correction device
US2647213A (en) * 1946-06-14 1953-07-28 Atomic Energy Commission Isotope separating apparatus
BE534088A (da) * 1953-12-15
NL95815C (da) * 1954-03-11
NL151555B (nl) * 1967-11-11 1976-11-15 Philips Nv Elektronenstraalbuis voor het weergeven van gekleurde beelden.
US3873879A (en) * 1972-01-14 1975-03-25 Rca Corp In-line electron gun
BE793992A (fr) * 1972-01-14 1973-05-02 Rca Corp Tube a rayons cathodiques
US4137479A (en) * 1977-01-06 1979-01-30 Tektronix, Inc. Cathode ray tube having an electron lens system including a meshless scan expansion post deflection acceleration lens
US4142128A (en) * 1977-04-18 1979-02-27 Tektronix, Inc. Box-shaped scan expansion lens for cathode ray tube
JPS588543B2 (ja) * 1978-10-18 1983-02-16 岩崎通信機株式会社 後段加速型陰極線管
GB2135503B (en) * 1982-12-27 1986-08-06 Tektronix Inc Accelerating and scan expansion electron lens system
US4543508A (en) * 1983-04-12 1985-09-24 Iwatsu Electric Co., Ltd. Cathode ray tube with an electron lens for deflection amplification
US20090121149A1 (en) * 2007-11-09 2009-05-14 Varian Semiconductor Equipment Associates, Inc. Techniques for shaping an ion beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729932A1 (de) * 1976-07-13 1978-01-19 Philips Nv Kathodenstrahlroehre mit einer astigmatischen elektronenlinse

Also Published As

Publication number Publication date
NL82605C (da)
US2412687A (en) 1946-12-17
FR922408A (fr) 1947-06-09

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