FR798123A - Improvements to cathode ray tubes and similar devices - Google Patents

Improvements to cathode ray tubes and similar devices

Info

Publication number
FR798123A
FR798123A FR798123DA FR798123A FR 798123 A FR798123 A FR 798123A FR 798123D A FR798123D A FR 798123DA FR 798123 A FR798123 A FR 798123A
Authority
FR
France
Prior art keywords
cathode ray
similar devices
ray tubes
tubes
similar
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 FR798123A publication Critical patent/FR798123A/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
FR798123D 1934-11-08 1935-11-04 Improvements to cathode ray tubes and similar devices Expired FR798123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32181/34A GB451766A (en) 1934-11-08 1934-11-08 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
FR798123A true FR798123A (en) 1936-05-09

Family

ID=10334550

Family Applications (1)

Application Number Title Priority Date Filing Date
FR798123D Expired FR798123A (en) 1934-11-08 1935-11-04 Improvements to cathode ray tubes and similar devices

Country Status (4)

Country Link
US (1) US2124270A (en)
FR (1) FR798123A (en)
GB (1) GB451766A (en)
NL (1) NL45873C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB583214A (en) * 1941-12-12 1946-12-12 Standard Telephones Cables Ltd Improvements in or relating to electron discharge devices of the velocity modulationtype
NL83700C (en) * 1942-03-24
US2520813A (en) * 1947-12-10 1950-08-29 Rudenberg Reinhold Electron optical system
FR1018955A (en) * 1950-05-02 1953-01-15 Philips Brasil Microwave discharge tubes
US2735032A (en) * 1952-10-09 1956-02-14 bradley
US2916666A (en) * 1954-06-21 1959-12-08 Itt Electron beam gun systems
US2840754A (en) * 1954-09-01 1958-06-24 Rca Corp Electron beam tube
US2903620A (en) * 1957-08-28 1959-09-08 Sylvania Electric Prod Microwave tube
US2903619A (en) * 1957-08-28 1959-09-08 Sylvania Electric Prod Microwave tube
US3143681A (en) * 1959-12-07 1964-08-04 Gen Electric Spiral electrostatic electron lens
US3167684A (en) * 1960-01-20 1965-01-26 Johann R Hechtel Klystron tubes

Also Published As

Publication number Publication date
US2124270A (en) 1938-07-19
NL45873C (en)
GB451766A (en) 1936-08-10

Similar Documents

Publication Publication Date Title
FR863453A (en) Cathode ray tube
FR839869A (en) Improvements to cathode ray devices
FR846257A (en) Improvements to cathode ray tubes
FR798123A (en) Improvements to cathode ray tubes and similar devices
FR843273A (en) Improvements to cathode ray tubes
FR48958E (en) Improvements to cathode ray tubes
FR798366A (en) Improvements to cathode ray oscillographs
FR776158A (en) Improvements to cathode ray tubes
FR863045A (en) Cathode ray tube
FR47147E (en) Improvements to cathode ray lamps
FR849215A (en) Improvements to cathode ray tubes
FR46705E (en) Improvements to cathode ray lamps
FR787469A (en) Improvements to cathode ray tubes
FR57514E (en) Improvements to cathode ray tubes
FR802715A (en) Improvements to cathode ray tubes
FR787744A (en) Improvements to cathode ray tubes
FR835007A (en) Improvements to cathode ray tubes
FR801713A (en) Cathode ray tube
FR779734A (en) Improvements to cathode ray lamps
FR786030A (en) Improvements to cathode ray tube assemblies
FR831049A (en) Cathode ray tubes
FR787773A (en) Improvements to cathode ray devices
FR784170A (en) Cathode ray tube
FR815084A (en) Improvements to thermionic discharge tubes
FR829899A (en) Improvements to radiocompasses of the cathode ray type