FR754518A - Perfectionnements aux tubes à rayons cathodiques - Google Patents

Perfectionnements aux tubes à rayons cathodiques

Info

Publication number
FR754518A
FR754518A FR754518DA FR754518A FR 754518 A FR754518 A FR 754518A FR 754518D A FR754518D A FR 754518DA FR 754518 A FR754518 A FR 754518A
Authority
FR
France
Prior art keywords
cathode ray
ray tubes
tubes
cathode
ray
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
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR754518A publication Critical patent/FR754518A/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
    • H01J29/58—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
FR754518D 1932-06-02 1933-04-19 Perfectionnements aux tubes à rayons cathodiques Expired FR754518A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15693/32A GB402460A (en) 1932-06-02 1932-06-02 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
FR754518A true FR754518A (fr) 1933-11-08

Family

ID=10063743

Family Applications (1)

Application Number Title Priority Date Filing Date
FR754518D Expired FR754518A (fr) 1932-06-02 1933-04-19 Perfectionnements aux tubes à rayons cathodiques

Country Status (3)

Country Link
US (1) US2072957A (fr)
FR (1) FR754518A (fr)
GB (1) GB402460A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763222C (de) * 1938-08-23 1954-10-04 Siemens & Halske A G Mittelbar geheizte Gluehkathode fuer Elektronenstrahlroehren
NL83700C (fr) * 1942-03-24
US2451813A (en) * 1943-03-30 1948-10-19 Westinghouse Electric Corp Electron discharge device having an electron beam passage and aligning means therewith for the cathode
BE514668A (fr) * 1951-10-09
US2712087A (en) * 1954-10-19 1955-06-28 Plural beam electron discharge devices
US5223764A (en) * 1991-12-09 1993-06-29 Chunghwa Picture Tubes, Ltd. Electron gun with low voltage limiting aperture main lens
US5220239A (en) * 1991-12-09 1993-06-15 Chunghwa Picture Tubes, Ltd. High density electron beam generated by low voltage limiting aperture gun
US5159240A (en) * 1991-12-09 1992-10-27 Chunghwa Picture Tubes, Ltd. Low voltage limiting aperture electron gun
US5327044A (en) * 1992-04-27 1994-07-05 Chunghwa Picture Tubes, Ltd. Electron beam deflection lens for CRT
US5204585A (en) * 1992-04-27 1993-04-20 Chen Hsing Yao Electron beam deflection lens for color CRT
US5182492A (en) * 1992-05-20 1993-01-26 Chunghwa Picture Tubes, Ltd. Electron beam shaping aperture in low voltage, field-free region of electron gun

Also Published As

Publication number Publication date
US2072957A (en) 1937-03-09
GB402460A (en) 1933-12-04

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