[go: up one dir, main page]

FR1225675A - Improvements to cathode systems - Google Patents

Improvements to cathode systems

Info

Publication number
FR1225675A
FR1225675A FR781389A FR781389A FR1225675A FR 1225675 A FR1225675 A FR 1225675A FR 781389 A FR781389 A FR 781389A FR 781389 A FR781389 A FR 781389A FR 1225675 A FR1225675 A FR 1225675A
Authority
FR
France
Prior art keywords
cathode systems
cathode
systems
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
FR781389A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Application granted granted Critical
Publication of FR1225675A publication Critical patent/FR1225675A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/30—Cold cathodes, e.g. field-emissive cathode
FR781389A 1957-12-16 1958-12-11 Improvements to cathode systems Expired FR1225675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1225675X 1957-12-16

Publications (1)

Publication Number Publication Date
FR1225675A true FR1225675A (en) 1960-07-04

Family

ID=10884033

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781389A Expired FR1225675A (en) 1957-12-16 1958-12-11 Improvements to cathode systems

Country Status (1)

Country Link
FR (1) FR1225675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793602A1 (en) * 1999-05-12 2000-11-17 Univ Claude Bernard Lyon Electron extraction method for flat screen display includes use of metal electron reservoir and adjoining semiconductor with low surface potential barrier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793602A1 (en) * 1999-05-12 2000-11-17 Univ Claude Bernard Lyon Electron extraction method for flat screen display includes use of metal electron reservoir and adjoining semiconductor with low surface potential barrier
WO2000070638A1 (en) * 1999-05-12 2000-11-23 Universite Claude Bernard Lyon I Method and device for extraction of electrodes in a vacuum and emission cathodes for said device
US7057333B1 (en) 1999-05-12 2006-06-06 Universite Claude Bernard Lyon I Method and device for extraction of electrons in a vacuum and emission cathodes for said device

Similar Documents

Publication Publication Date Title
BE597408A (en) Improvements to navigation systems
FR1204127A (en) Improvements to automatic telephone systems
FR74960E (en) Improvements to hydraulic lifting systems
FR1185228A (en) Improvements to damping systems
FR1187979A (en) Improvements to telephone systems
FR1210986A (en) Improvements to telephone systems
FR1225675A (en) Improvements to cathode systems
FR1220044A (en) Improvements to telecommunication systems
FR1169671A (en) Improvements to telephone communications systems
FR1195087A (en) Improvements to direction finders
FR1220244A (en) Improvements to cathode systems
FR1164689A (en) Improvements to pumping systems
FR1233478A (en) Improvements to transport systems
FR1178316A (en) Improvements to electromagnetic detection systems
FR1194675A (en) Improvements to pumping systems
FR1201374A (en) Improvements to radar systems
FR1228160A (en) Improvements to pseudo-stereophonic systems
FR1158914A (en) Improvements to coupling systems
FR1178039A (en) Improvements to telephone systems
FR1208212A (en) Improvements to telephone systems
FR1146335A (en) Improvements to electrical systems
FR1165321A (en) Improvements to transmission systems
FR1172246A (en) Stylograph refinements
FR1179078A (en) Improvements to connecting rod-crank systems
FR1221801A (en) Improvements to radiodetection systems