FR932899A - Perfectionnements relatifs aux cathodes émettrices d'électrons - Google Patents

Perfectionnements relatifs aux cathodes émettrices d'électrons

Info

Publication number
FR932899A
FR932899A FR932899DA FR932899A FR 932899 A FR932899 A FR 932899A FR 932899D A FR932899D A FR 932899DA FR 932899 A FR932899 A FR 932899A
Authority
FR
France
Prior art keywords
electron
improvements relating
emitting cathodes
cathodes
emitting
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 FR932899A publication Critical patent/FR932899A/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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • H01J31/505—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output flat tubes, e.g. proximity focusing tubes
FR932899D 1940-10-10 1946-08-27 Perfectionnements relatifs aux cathodes émettrices d'électrons Expired FR932899A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15088/40A GB579804A (en) 1940-10-10 1940-10-10 Improvements in or relating to photo-electrically active electrodes

Publications (1)

Publication Number Publication Date
FR932899A true FR932899A (fr) 1948-04-05

Family

ID=10052811

Family Applications (1)

Application Number Title Priority Date Filing Date
FR932899D Expired FR932899A (fr) 1940-10-10 1946-08-27 Perfectionnements relatifs aux cathodes émettrices d'électrons

Country Status (4)

Country Link
US (1) US2563474A (fr)
FR (1) FR932899A (fr)
GB (1) GB579804A (fr)
NL (1) NL66228C (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594740A (en) * 1950-02-17 1952-04-29 Forest Lee De Electronic light amplifier
US2783407A (en) * 1952-06-28 1957-02-26 Vierkotter Paul Source of light
US3058022A (en) * 1959-04-14 1962-10-09 Radiation Res Corp Photoelectric generator
DE1281053B (de) * 1965-02-25 1968-10-24 Telefunken Patent Verfahren zur Herstellung einer flaechenhaften Fotokathode fuer lichtelektrische Roehren
US3940620A (en) * 1974-10-03 1976-02-24 General Electric Company Electrostatic recording of X-ray images

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1921834A (en) * 1929-08-17 1933-08-08 G M Lab Inc Photo-electric tube
US2115855A (en) * 1935-05-23 1938-05-03 Emi Ltd Cathode ray tube
US2175888A (en) * 1936-12-31 1939-10-10 Rca Corp Photoelectric cathode

Also Published As

Publication number Publication date
NL66228C (fr)
GB579804A (en) 1946-08-16
US2563474A (en) 1951-08-07

Similar Documents

Publication Publication Date Title
FR932899A (fr) Perfectionnements relatifs aux cathodes émettrices d'électrons
FR870111A (fr) Perfectionnements aux tubes à décharge
FR884059A (fr) Perfectionnements aux tubes à décharges
FR856372A (fr) Cathode émettrice d'électrons
FR942174A (fr) Perfectionnements aux amplificateurs thermioniques
FR874215A (fr) Perfectionnements aux carburateurs
FR872405A (fr) Perfectionnements aux cathodes thoriées
FR867141A (fr) Perfectionnements aux électros aimants
FR851749A (fr) Perfectionnements aux électrodes émettrices d'électrons secondaires
FR874688A (fr) Cathode
FR866797A (fr) Perfectionnements aux soufflets d'intercommunication
FR872190A (fr) Multiplicateur d'électrons
FR852052A (fr) électrode d'activation
FR866332A (fr) Perfectionnements aux tubes à décharge
FR870332A (fr) Perfectionnements aux toitures
FR866003A (fr) Perfectionnements aux enregistreurs électrolytiques
FR51244E (fr) Perfectionnements aux chaussures
FR1046551A (fr) Perfectionnements aux compresseurs
FR871431A (fr) Perfectionnements apportés aux commandes à distance
FR870084A (fr) Perfectionnements aux cathodes des tubes thermioniques
FR51141E (fr) Perfectionnements aux pompes
FR875214A (fr) Perfectionnements aux tubes émetteurs d'images
FR870632A (fr) Perfectionnement aux fraises-agricoles
FR875033A (fr) Perfectionnements aux amplificateurs thermioniques
FR932176A (fr) Perfectionnements aux chaussures