FR849215A - Improvements to cathode ray tubes - Google Patents

Improvements to cathode ray tubes

Info

Publication number
FR849215A
FR849215A FR849215DA FR849215A FR 849215 A FR849215 A FR 849215A FR 849215D A FR849215D A FR 849215DA FR 849215 A FR849215 A FR 849215A
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
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.)
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 FR849215A publication Critical patent/FR849215A/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
FR849215D 1938-02-17 1939-01-23 Improvements to cathode ray tubes Expired FR849215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4973/38A GB511444A (en) 1938-02-17 1938-02-17 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
FR849215A true FR849215A (en) 1939-11-16

Family

ID=9787357

Family Applications (1)

Application Number Title Priority Date Filing Date
FR849215D Expired FR849215A (en) 1938-02-17 1939-01-23 Improvements to cathode ray tubes

Country Status (3)

Country Link
US (1) US2213688A (en)
FR (1) FR849215A (en)
GB (1) GB511444A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095517A (en) * 1960-03-22 1963-06-25 Litton Industries Inc High speed direct writing cathoderay tube
US3243646A (en) * 1961-09-11 1966-03-29 Nippon Columbia Cylindrical compensating electrode for electrostatic lens of cathode ray tube
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
US5204585A (en) * 1992-04-27 1993-04-20 Chen Hsing Yao Electron beam deflection lens for color CRT
US5327044A (en) * 1992-04-27 1994-07-05 Chunghwa Picture Tubes, Ltd. Electron beam deflection lens for 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
US2213688A (en) 1940-09-03
GB511444A (en) 1939-08-18

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