GB1309379A - Electric high-vacuum discharge tube - Google Patents

Electric high-vacuum discharge tube

Info

Publication number
GB1309379A
GB1309379A GB2993771A GB2993771A GB1309379A GB 1309379 A GB1309379 A GB 1309379A GB 2993771 A GB2993771 A GB 2993771A GB 2993771 A GB2993771 A GB 2993771A GB 1309379 A GB1309379 A GB 1309379A
Authority
GB
United Kingdom
Prior art keywords
anode
coated
tube
june
discharge tube
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
GB2993771A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1309379A publication Critical patent/GB1309379A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/06—Vessels or containers specially adapted for operation at high tension, e.g. by improved potential distribution over surface of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0012—Constructional arrangements
    • H01J2893/0019—Chemical composition and manufacture
    • H01J2893/0022—Manufacture
    • H01J2893/0023—Manufacture carbonising and other surface treatments

Landscapes

  • X-Ray Techniques (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Particle Accelerators (AREA)

Abstract

1309379 Electrode materials PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 June 1971 [30 June 1970] 29937/71 Heading H1D A high vacuum discharge tube comprises two electrodes with Cu surfaces, adjacent parts of which are each covered with a 10-50 Š thick layer of Ti or Zr. The layer is applied by vapour deposition and prevents field emission from surface irregularities. Surfaces include those of an electron gun grid and an accelerating electrode of an electron microscope and the cathode grid, anode and lenses of an electron gun in a C.R.T. In an X-ray tube, a soft Cu coated magnetic anode tube 33 and a cathode screen are coated, the anode tube having an eccentric thickness distribution to concentrate the beam on a W anode 35; X-rays emerge from a Be window. In a vacuum switch including Cu end plates 51, 52 and bellows 55, adjacent electrodes 56, 57, 59 which screen the ceramic envelope 50 from sputtered material, are coated.
GB2993771A 1970-06-30 1971-06-25 Electric high-vacuum discharge tube Expired GB1309379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7009601A NL7009601A (en) 1970-06-30 1970-06-30

Publications (1)

Publication Number Publication Date
GB1309379A true GB1309379A (en) 1973-03-07

Family

ID=19810452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2993771A Expired GB1309379A (en) 1970-06-30 1971-06-25 Electric high-vacuum discharge tube

Country Status (7)

Country Link
US (1) US3761761A (en)
JP (1) JPS471817A (en)
CA (1) CA934430A (en)
DE (1) DE2128921C3 (en)
FR (1) FR2100082A5 (en)
GB (1) GB1309379A (en)
NL (1) NL7009601A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956657A (en) * 1972-07-18 1976-05-11 Robert Bosch G.M.B.H. Pre-ignition gap
NL7312945A (en) * 1973-09-20 1975-03-24 Philips Nv TURNTABLE FOR A ROSE TUBE AND METHOD FOR MANUFACTURE OF SUCH ANODE.
US4050914A (en) * 1976-07-26 1977-09-27 S.A.E.S. Getters S.P.A. Accelerator for charged particles
DE2639033C3 (en) * 1976-08-30 1981-07-23 Gkss - Forschungszentrum Geesthacht Gmbh, 2000 Hamburg Component in electrical vacuum devices that work with charge carrier beams and the process for their manufacture
US4196938A (en) * 1978-06-07 1980-04-08 Blokin Vladimir I Gas-discharge chamber electrode and electrode system using same
NL7905720A (en) * 1979-07-24 1981-01-27 Hazemeijer Bv METHOD FOR IMPROVING SWITCH CONTACTS, IN PARTICULAR FOR VACUUM SWITCHES.
JPS6264032A (en) * 1985-09-13 1987-03-20 Shimadzu Corp Electron tube
US4757166A (en) * 1987-06-15 1988-07-12 Westinghouse Electric Corp. Vacuum interrupter with ceramic enclosure
DE4329518A1 (en) * 1993-08-28 1994-01-05 Slamecka Ernst Vacuum switch contact assembly - has piston unit with electrode and contact disc arrangement set into end surface and having low conductivity
FR2834122B1 (en) * 2001-12-20 2004-04-02 Thales Sa ELECTRODES MANUFACTURING METHOD AND ELECTRONIC VACUUM TUBE USING THE SAME
CN101894722B (en) * 2010-08-06 2014-04-16 蒋贤华 Vacuum discharge tube
CN108257835B (en) * 2018-02-07 2020-08-11 深圳市槟城电子有限公司 Gas discharge tube and overvoltage protection device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734003A (en) * 1956-02-07 Method for treating metals
US2846609A (en) * 1954-02-08 1958-08-05 Philips Corp Non-emissive electrode for electron discharge device
DE1489235B2 (en) * 1964-02-13 1970-11-26 Radiotechnitscheskij Institut Akademii Naük SSSR, Moskau Electrode for pulse-operated high-power electron tubes

Also Published As

Publication number Publication date
DE2128921C3 (en) 1978-05-24
DE2128921A1 (en) 1972-01-05
NL7009601A (en) 1972-01-03
US3761761A (en) 1973-09-25
FR2100082A5 (en) 1972-03-17
CA934430A (en) 1973-09-25
JPS471817A (en) 1972-01-29
DE2128921B2 (en) 1977-09-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee