FR1178419A - Reserve type cathode and discharge tube equipped with such a cathode - Google Patents

Reserve type cathode and discharge tube equipped with such a cathode

Info

Publication number
FR1178419A
FR1178419A FR1178419DA FR1178419A FR 1178419 A FR1178419 A FR 1178419A FR 1178419D A FR1178419D A FR 1178419DA FR 1178419 A FR1178419 A FR 1178419A
Authority
FR
France
Prior art keywords
cathode
discharge tube
tube equipped
reserve type
type cathode
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1178419A publication Critical patent/FR1178419A/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
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/28—Dispenser-type cathodes, e.g. L-cathode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Solid Thermionic Cathode (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
FR1178419D 1955-08-23 1956-08-21 Reserve type cathode and discharge tube equipped with such a cathode Expired FR1178419A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US530051A US2895070A (en) 1955-08-23 1955-08-23 Thermionic cathode

Publications (1)

Publication Number Publication Date
FR1178419A true FR1178419A (en) 1959-05-11

Family

ID=24112250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1178419D Expired FR1178419A (en) 1955-08-23 1956-08-21 Reserve type cathode and discharge tube equipped with such a cathode

Country Status (7)

Country Link
US (1) US2895070A (en)
BE (1) BE550480A (en)
CH (1) CH344140A (en)
DE (1) DE1043520B (en)
FR (1) FR1178419A (en)
GB (1) GB791495A (en)
NL (1) NL96647C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537338A1 (en) * 1982-12-03 1984-06-08 Thomson Csf Thermoelectronic cathode and method of producing such a cathode.

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3131328A (en) * 1960-06-20 1964-04-28 Gen Dynamics Corp Dispenser cathode for cathode ray tube
US3255376A (en) * 1962-01-02 1966-06-07 Rca Corp Low-noise electron guns
US3284657A (en) * 1963-06-03 1966-11-08 Varian Associates Grain-oriented thermionic emitter for electron discharge devices
US3303378A (en) * 1964-06-17 1967-02-07 Chorney Paul Monolithic cathode structure
US3747590A (en) * 1971-06-21 1973-07-24 Nat Cable Molding Corp Biopotential electrode
JP3322183B2 (en) * 1997-02-07 2002-09-09 三菱電機株式会社 Electron gun
JPH11339633A (en) * 1997-11-04 1999-12-10 Sony Corp Impregnated cathode and manufacture therefor and electron gun and electronic tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2131204A (en) * 1936-01-15 1938-09-27 Siemens Ag Indirectly heated thermionic cathode
DE761089C (en) * 1937-12-31 1954-04-29 Siemens & Halske A G Indirectly heated glow cathode for Braun tubes
DE879872C (en) * 1942-08-19 1953-06-15 Siemens Ag Cathode for generating an electron beam
BE498869A (en) * 1949-10-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537338A1 (en) * 1982-12-03 1984-06-08 Thomson Csf Thermoelectronic cathode and method of producing such a cathode.

Also Published As

Publication number Publication date
DE1043520B (en) 1958-11-13
CH344140A (en) 1960-01-31
GB791495A (en) 1958-03-05
NL96647C (en)
BE550480A (en)
US2895070A (en) 1959-07-14

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