GB532717A - Improvements in or relating to electron discharge apparatus using secondary emission - Google Patents

Improvements in or relating to electron discharge apparatus using secondary emission

Info

Publication number
GB532717A
GB532717A GB21988/39A GB2198839A GB532717A GB 532717 A GB532717 A GB 532717A GB 21988/39 A GB21988/39 A GB 21988/39A GB 2198839 A GB2198839 A GB 2198839A GB 532717 A GB532717 A GB 532717A
Authority
GB
United Kingdom
Prior art keywords
relating
discharge apparatus
electron discharge
secondary emission
disposed
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
GB21988/39A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to BE477662D priority Critical patent/BE477662A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB21988/39A priority patent/GB532717A/en
Priority to FR867295D priority patent/FR867295A/en
Publication of GB532717A publication Critical patent/GB532717A/en
Priority to US767019A priority patent/US2585057A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • 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
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/30—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at anode potential, e.g. iconoscope

Landscapes

  • Electrostatic Separation (AREA)
  • Microwave Tubes (AREA)

Abstract

532,717. Electron multipliers. STANDARD TELEPHONES & CABLES, Ltd., and VANGEEN, A. 1. July 28, 1939, No. 21988. [Class 39 (i)] Electron multipliers of the type in which a collecting grid A is disposed in front of a secondary electron emitting electrode SE, the emissive surface of the latter is of fluted form and the collecting electrode comprises wires or ribbons disposed on the centre lines of the flutes.
GB21988/39A 1939-07-28 1939-07-28 Improvements in or relating to electron discharge apparatus using secondary emission Expired GB532717A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE477662D BE477662A (en) 1939-07-28
GB21988/39A GB532717A (en) 1939-07-28 1939-07-28 Improvements in or relating to electron discharge apparatus using secondary emission
FR867295D FR867295A (en) 1939-07-28 1940-09-24 Electronic discharge devices
US767019A US2585057A (en) 1939-07-28 1947-08-07 Electron discharge apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21988/39A GB532717A (en) 1939-07-28 1939-07-28 Improvements in or relating to electron discharge apparatus using secondary emission

Publications (1)

Publication Number Publication Date
GB532717A true GB532717A (en) 1941-01-29

Family

ID=10172112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21988/39A Expired GB532717A (en) 1939-07-28 1939-07-28 Improvements in or relating to electron discharge apparatus using secondary emission

Country Status (4)

Country Link
US (1) US2585057A (en)
BE (1) BE477662A (en)
FR (1) FR867295A (en)
GB (1) GB532717A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899577A (en) * 1957-03-27 1959-08-11 Electron discharge device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1704155A (en) * 1923-07-27 1929-03-05 Albert G Thomas Vacuum tube
US2037352A (en) * 1929-01-12 1936-04-14 Rca Corp Electronic vacuum tube
GB511449A (en) * 1938-02-17 1939-08-18 Marconi Wireless Telegraph Co Improvements in or relating to electron discharge devices
NL52549C (en) * 1939-06-06
US2358542A (en) * 1940-07-26 1944-09-19 Rca Corp Currentless grid tube

Also Published As

Publication number Publication date
FR867295A (en) 1941-10-10
BE477662A (en)
US2585057A (en) 1952-02-12

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