GB1284047A - Cathode - Google Patents

Cathode

Info

Publication number
GB1284047A
GB1284047A GB23084/71A GB2308471A GB1284047A GB 1284047 A GB1284047 A GB 1284047A GB 23084/71 A GB23084/71 A GB 23084/71A GB 2308471 A GB2308471 A GB 2308471A GB 1284047 A GB1284047 A GB 1284047A
Authority
GB
United Kingdom
Prior art keywords
cathode
heater
secured
loop
plate
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
GB23084/71A
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.)
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 GB1284047A publication Critical patent/GB1284047A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/04—Arrangements of electrodes and associated parts for generating or controlling the discharge, e.g. electron-optical arrangement or ion-optical arrangement
    • H01J37/06—Electron sources; Electron guns
    • H01J37/065—Construction of guns or parts thereof
    • 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
    • H01J1/15—Cathodes heated directly by an electric current
    • H01J1/16—Cathodes heated directly by an electric current characterised by the shape
    • 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
    • H01J29/04—Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/027—Construction of the gun or parts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Discharge Lamp (AREA)
  • Solid Thermionic Cathode (AREA)
GB23084/71A 1970-03-07 1971-04-19 Cathode Expired GB1284047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7003279A NL7003279A (enrdf_load_stackoverflow) 1970-03-07 1970-03-07

Publications (1)

Publication Number Publication Date
GB1284047A true GB1284047A (en) 1972-08-02

Family

ID=19809525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23084/71A Expired GB1284047A (en) 1970-03-07 1971-04-19 Cathode

Country Status (8)

Country Link
US (1) US3689794A (enrdf_load_stackoverflow)
AU (1) AU2610071A (enrdf_load_stackoverflow)
BE (1) BE763897A (enrdf_load_stackoverflow)
CA (1) CA934432A (enrdf_load_stackoverflow)
DE (1) DE2106497A1 (enrdf_load_stackoverflow)
FR (1) FR2081764A1 (enrdf_load_stackoverflow)
GB (1) GB1284047A (enrdf_load_stackoverflow)
NL (1) NL7003279A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2583359A (en) * 2019-04-25 2020-10-28 Aquasium Tech Limited Electron beam emitting assembly

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937996A (en) * 1974-10-07 1976-02-10 General Electric Company Metal halide lamp using loop electrodes
DE2835489A1 (de) * 1978-08-12 1980-02-21 Standard Elektrik Lorenz Ag Kathodenaufbau fuer strahlungsgeheizte kathode
WO1991003831A1 (en) * 1989-08-29 1991-03-21 Olgerd Ivanovich Babich Cathode-heating device for electron-ray tube
EP0641007A3 (en) * 1993-08-31 1995-06-21 Samsung Display Devices Co Ltd Directly heated supply cathode structure.
US5831379A (en) * 1994-01-28 1998-11-03 Samsung Display Devices Co., Ltd. Directly heated cathode structure
US6448569B1 (en) * 1999-06-22 2002-09-10 Agere Systems Guardian Corporation Bonded article having improved crystalline structure and work function uniformity and method for making the same
CN106191786A (zh) * 2016-08-10 2016-12-07 武汉博莱瑞汽车饰件有限公司 钨丝加热子
CN115656311B (zh) * 2022-11-09 2024-08-30 中国人民解放军战略支援部队航天工程大学 一种惰性气体亚稳态原子束流制备装置及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126894A (en) * 1933-05-04 1938-08-16 Telefunken Gmbh Indirectly heated cathode
US2151803A (en) * 1935-11-07 1939-03-28 Rca Corp Cathode for electron discharge devices
US3209197A (en) * 1959-08-14 1965-09-28 Philips Corp Gaseous glow-discharge tube with monocrystalline metal cathode
US3374386A (en) * 1964-11-02 1968-03-19 Field Emission Corp Field emission cathode having tungsten miller indices 100 plane coated with zirconium, hafnium or magnesium on oxygen binder
US3461338A (en) * 1967-01-16 1969-08-12 Ibm Non-inductive filament configuration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2583359A (en) * 2019-04-25 2020-10-28 Aquasium Tech Limited Electron beam emitting assembly

Also Published As

Publication number Publication date
DE2106497A1 (de) 1971-09-23
FR2081764A1 (enrdf_load_stackoverflow) 1971-12-10
BE763897A (fr) 1971-09-06
CA934432A (en) 1973-09-25
NL7003279A (enrdf_load_stackoverflow) 1971-09-09
US3689794A (en) 1972-09-05
AU2610071A (en) 1972-09-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees