FR874105A - Cathode ray tube comprising an electrostatic projection lens and apparatus comprising such a tube - Google Patents

Cathode ray tube comprising an electrostatic projection lens and apparatus comprising such a tube

Info

Publication number
FR874105A
FR874105A FR874105DA FR874105A FR 874105 A FR874105 A FR 874105A FR 874105D A FR874105D A FR 874105DA FR 874105 A FR874105 A FR 874105A
Authority
FR
France
Prior art keywords
tube
cathode ray
projection lens
electrostatic projection
ray tube
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 FR874105A publication Critical patent/FR874105A/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
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • 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
    • H01J29/52—Arrangements for controlling intensity of ray or beam, e.g. for modulation
FR874105D 1940-03-09 1941-07-21 Cathode ray tube comprising an electrostatic projection lens and apparatus comprising such a tube Expired FR874105A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL223635X 1940-03-09

Publications (1)

Publication Number Publication Date
FR874105A true FR874105A (en) 1942-07-29

Family

ID=19779509

Family Applications (1)

Application Number Title Priority Date Filing Date
FR874105D Expired FR874105A (en) 1940-03-09 1941-07-21 Cathode ray tube comprising an electrostatic projection lens and apparatus comprising such a tube

Country Status (7)

Country Link
US (1) US2341764A (en)
BE (1) BE440981A (en)
CH (1) CH223635A (en)
DE (1) DE1077336B (en)
FR (1) FR874105A (en)
GB (2) GB549476A (en)
NL (1) NL58348C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB648118A (en) * 1948-11-25 1950-12-28 Frederick Henry Townsend Improvements in or relating to cathode ray tubes with magnetic deflection
NL153273B (en) * 1950-05-02 Bosch Gmbh Robert DRAIN DEVICE FOR THE CONTINUOUS DRAINAGE OF A SUGAR MASS FROM A VACUUM BOILER FOR VAPORING A VISCOUS MASS OF SUGAR.
US2672568A (en) * 1951-03-27 1954-03-16 Int Standard Electric Corp Electron gun for cathode-ray tubes
DE1076827B (en) * 1952-05-24 1960-03-03 Telefunken Gmbh Electron beam generation system for cathode ray tubes
NL179719B (en) * 1952-07-30 Air Liquide METHOD AND EQUIPMENT FOR THE PREPARATION OF SULFOMONOPER ACID FOR THE TREATMENT OF POLLUTED WATER.
US2818519A (en) * 1953-11-13 1957-12-31 Telefunken Gmbh Cathode-ray tube
NL98369C (en) * 1958-07-17
US4345182A (en) * 1980-06-02 1982-08-17 The Boeing Company Electrode having spiral-shaped electrically conducting regions therein useful as an anode in electron beam discharge devices
DE19534124A1 (en) * 1995-09-14 1997-03-20 Licentia Gmbh cathode ray tube

Also Published As

Publication number Publication date
GB549476A (en) 1942-11-23
CH223635A (en) 1942-09-30
DE1077336B (en) 1960-03-10
US2341764A (en) 1944-02-15
GB597468A (en) 1948-01-27
NL58348C (en)
BE440981A (en)

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