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GB714054A - Improvements relating to the manufacture of photo-electric devices - Google Patents

Improvements relating to the manufacture of photo-electric devices

Info

Publication number
GB714054A
GB714054A GB667150A GB667150A GB714054A GB 714054 A GB714054 A GB 714054A GB 667150 A GB667150 A GB 667150A GB 667150 A GB667150 A GB 667150A GB 714054 A GB714054 A GB 714054A
Authority
GB
United Kingdom
Prior art keywords
photo
conductive layer
heated
carrier
emissive
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
GB667150A
Inventor
James Dwyer Mcgee
Reginald Sidney Webley
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB667150A priority Critical patent/GB714054A/en
Publication of GB714054A publication Critical patent/GB714054A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

714,054. Cathode materials and processing. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 15, 1951 [March 17, 1950], No. 6671/50. Class 39(1) [Also in Group XXXVI] A photo-emissive or photo-conductive device is manufactured by applying a solution of stannous or stannic chloride to a heated transparent carrier so as to form a transparent conductive layer on the carrier and then forming a photo-emissive or photo-conductive layer on the conductive layer. As applied to a photo-cathode, the carrier may be of hard glass which is heated to 550‹C or mica heated to 700‹C and then sprayed with the stannous or stannic chloride solution, the solvent immediately evaporating. Photo-emissive material is then applied; since caesium would attack the conductive layer a protective coating of antimony, silver or bismuth is first applied by vaporization and the protective coating. then activated with caesium. The cathode may be used in image converters or television pick-up tubes. Specifications 604,878, 632,227, 632,256, [Group XI], and 639,561, [Group XXXVI], are referred to.
GB667150A 1950-03-17 1950-03-17 Improvements relating to the manufacture of photo-electric devices Expired GB714054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB667150A GB714054A (en) 1950-03-17 1950-03-17 Improvements relating to the manufacture of photo-electric devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB667150A GB714054A (en) 1950-03-17 1950-03-17 Improvements relating to the manufacture of photo-electric devices

Publications (1)

Publication Number Publication Date
GB714054A true GB714054A (en) 1954-08-25

Family

ID=9818689

Family Applications (1)

Application Number Title Priority Date Filing Date
GB667150A Expired GB714054A (en) 1950-03-17 1950-03-17 Improvements relating to the manufacture of photo-electric devices

Country Status (1)

Country Link
GB (1) GB714054A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977252A (en) * 1955-12-21 1961-03-28 Schlumberger Well Surv Corp Photosurface and method of making same
FR2517470A1 (en) * 1981-11-30 1983-06-03 Thermo Electron Corp LASER STIMULATED HIGH-DENSITY CURRENT ELECTRON GENERATOR AND METHOD OF MANUFACTURING SAME

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2977252A (en) * 1955-12-21 1961-03-28 Schlumberger Well Surv Corp Photosurface and method of making same
FR2517470A1 (en) * 1981-11-30 1983-06-03 Thermo Electron Corp LASER STIMULATED HIGH-DENSITY CURRENT ELECTRON GENERATOR AND METHOD OF MANUFACTURING SAME
GB2157884A (en) * 1981-11-30 1985-10-30 Thermo Electron Corp Photoemissive cathode for high current density photoelectron generators

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