GB890385A - Improvements relating to electron discharge devices - Google Patents

Improvements relating to electron discharge devices

Info

Publication number
GB890385A
GB890385A GB23148/59A GB2314859A GB890385A GB 890385 A GB890385 A GB 890385A GB 23148/59 A GB23148/59 A GB 23148/59A GB 2314859 A GB2314859 A GB 2314859A GB 890385 A GB890385 A GB 890385A
Authority
GB
United Kingdom
Prior art keywords
envelope
duct
component
tube
chamber
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
GB23148/59A
Inventor
John Treagus Balkwill
James Robert Folkes
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical 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
Priority to NL253424D priority Critical patent/NL253424A/xx
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB23148/59A priority patent/GB890385A/en
Priority to US39541A priority patent/US3037833A/en
Priority to DEA35052A priority patent/DE1171546B/en
Priority to FR832125A priority patent/FR1266031A/en
Publication of GB890385A publication Critical patent/GB890385A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

890,385. Discharge apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 21, 1960 [July 6, 1959], No. 23148/59. Class 39(1) In a method of making a discharge tube, a component 18 which is to be contained in the tube envelope 1 is inserted in a subsidiary chamber 11 which is connected to the tube envelope by a duct 12 having a cross-sectional area which is small compared with its length but which is large enough to allow the component to be passed along the duct. After evacuating chamber 11 and envelope 1, a vapour is introduced into chamber 11 so as to coat the surface of component 18 with a layer of a required material, the small crosssectional area of duct 12 preventing appreciable flow of the vapour into envelope 1. Finally the component is transferred along the duct into envelope 1 and the duct is sealed off at a point adjacent the envelope. As shown, component 18 is the photo-cathode of an image-intensfying tube and is coated on one side with X-ray sensitive luminescent material from container 24 and on the other side with a caesiated-antimony layer from containers 19, 21. The method of the invention may also be used in the formation of photo-conductive or secondary-electron-emissive coatings. Metal flap 15 having been swung away from aperture 14, component 18 is moved from holder 17 to holder 31 by means of a ferromagnetic bar 26 and an external magnet. A second electrode 32 may be coated in a second subsidiary chamber connected to envelope 1 by duct 34. Before any heat-sensitive components are transferred from their subsidiary chambers into the envelope, the envelope and its remaining components may be baked at a high temperature.
GB23148/59A 1959-07-06 1959-07-06 Improvements relating to electron discharge devices Expired GB890385A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL253424D NL253424A (en) 1959-07-06
GB23148/59A GB890385A (en) 1959-07-06 1959-07-06 Improvements relating to electron discharge devices
US39541A US3037833A (en) 1959-07-06 1960-06-29 Electron discharge devices
DEA35052A DE1171546B (en) 1959-07-06 1960-07-05 Process for the production of an image amplifier tube
FR832125A FR1266031A (en) 1959-07-06 1960-07-05 Improvements in the manufacture of electronic emission devices in vacuum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23148/59A GB890385A (en) 1959-07-06 1959-07-06 Improvements relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB890385A true GB890385A (en) 1962-02-28

Family

ID=10190937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23148/59A Expired GB890385A (en) 1959-07-06 1959-07-06 Improvements relating to electron discharge devices

Country Status (4)

Country Link
US (1) US3037833A (en)
DE (1) DE1171546B (en)
GB (1) GB890385A (en)
NL (1) NL253424A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837723A (en) * 1971-11-03 1974-09-24 Galileo Electro Optics Corp Method for making hybrid radiant energy sensor with solid state element and transfer energy-sensitive, electron-emissive surface
US4671778A (en) * 1986-03-19 1987-06-09 Rca Corporation Imaging device having an improved photoemissive cathode appendage processing assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733115A (en) * 1956-01-31 Apparatus for evaporating chemicals
US1623323A (en) * 1923-08-18 1927-04-05 Westinghouse Lamp Co Method of introducing volatile matter into lamps and the like
DE695498C (en) * 1935-06-27 1940-08-26 Aeg Process for the production of photocathodes and fluorescent screens in a vacuum vessel
US2281638A (en) * 1940-05-17 1942-05-05 Thomas W Sukumlyn Electron camera
US2667600A (en) * 1950-10-02 1954-01-26 Cathodeon Ltd Television pickup tube
US2899576A (en) * 1958-02-26 1959-08-11 Electron discharge i

Also Published As

Publication number Publication date
NL253424A (en)
DE1171546B (en) 1964-06-04
US3037833A (en) 1962-06-05

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