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FR874922A - Improvements made to electric discharge tubes with directed electron beams - Google Patents

Improvements made to electric discharge tubes with directed electron beams

Info

Publication number
FR874922A
FR874922A FR874922DA FR874922A FR 874922 A FR874922 A FR 874922A FR 874922D A FR874922D A FR 874922DA FR 874922 A FR874922 A FR 874922A
Authority
FR
France
Prior art keywords
electric discharge
electron beams
improvements made
discharge tubes
directed electron
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.)
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 FR874922A publication Critical patent/FR874922A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J25/00—Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
    • H01J25/02—Tubes with electron stream modulated in velocity or density in a modulator zone and thereafter giving up energy in an inducing zone, the zones being associated with one or more resonators
    • H01J25/32—Tubes with plural reflection, e.g. Coeterier tube
    • 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
    • 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
    • H01J29/64—Magnetic lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/029—Schematic arrangements for beam forming
FR874922D 1940-07-03 1941-08-28 Improvements made to electric discharge tubes with directed electron beams Expired FR874922A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL219503X 1940-07-03

Publications (1)

Publication Number Publication Date
FR874922A true FR874922A (en) 1942-08-31

Family

ID=19779267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874922D Expired FR874922A (en) 1940-07-03 1941-08-28 Improvements made to electric discharge tubes with directed electron beams

Country Status (8)

Country Link
US (1) US2347990A (en)
BE (1) BE442068A (en)
CH (1) CH219503A (en)
DE (1) DE862039C (en)
FR (1) FR874922A (en)
GB (2) GB554828A (en)
NL (1) NL60887C (en)
SE (1) SE106343C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059565B (en) * 1955-01-15 1959-06-18 Sebel S A Electronic lamp for lighting purposes

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL254372A (en) * 1930-07-02
NL158486B (en) * 1951-01-11 Pfizer PROCESS FOR THE PREPARATION OF PETROL-SUBSTITUTED PHENYLCARBAMATES AND FOR THE PREPARATION OF INSECTICIDE PREPARATIONS CONTAINING THEY.
US2619607A (en) * 1951-03-10 1952-11-25 Glaser Steers Corp Internal focusing device
US2748307A (en) * 1952-03-06 1956-05-29 Gen Electric Magnetically forcused electron discharge device
DE961735C (en) * 1953-03-19 1957-04-11 Fernseh Gmbh Method for centering the electron beam, especially for television picture tubes, with a permanent magnet surrounding the beam axis in a ring shape and arrangement for carrying out the method
NL214772A (en) * 1956-02-24
NL278366A (en) * 1961-05-27
NL282676A (en) * 1961-08-31
US3217200A (en) * 1962-01-23 1965-11-09 Gen Electric Internal magnetic lens for electron beams
DE2856244A1 (en) * 1978-12-27 1980-07-03 Kernforschungsanlage Juelich ELECTRONIC SHOCK SPECTROMETER
FR2641899A1 (en) * 1989-01-17 1990-07-20 Thomson Tubes Electroniques ELECTRON GUN WITH AN ACTIVE DEVICE PRODUCING A MAGNETIC FIELD IN THE VICINITY OF THE CATHODE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059565B (en) * 1955-01-15 1959-06-18 Sebel S A Electronic lamp for lighting purposes

Also Published As

Publication number Publication date
SE106343C1 (en) 1943-01-19
DE862039C (en) 1953-01-08
NL60887C (en)
US2347990A (en) 1944-05-02
CH219503A (en) 1942-02-15
GB554828A (en) 1943-07-21
BE442068A (en)
GB603939A (en) 1948-06-25

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