GB422728A - Improvements in or relating to electric discharge devices - Google Patents

Improvements in or relating to electric discharge devices

Info

Publication number
GB422728A
GB422728A GB3080033A GB3080033A GB422728A GB 422728 A GB422728 A GB 422728A GB 3080033 A GB3080033 A GB 3080033A GB 3080033 A GB3080033 A GB 3080033A GB 422728 A GB422728 A GB 422728A
Authority
GB
United Kingdom
Prior art keywords
metal
cathode
disc
filament
envelope
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
GB3080033A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB422728A publication Critical patent/GB422728A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/04—Coating on selected surface areas, e.g. using masks
    • C23C14/046—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/04—Coating on selected surface areas, e.g. using masks
    • C23C14/042—Coating on selected surface areas, e.g. using masks using masks
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/88—Vessels; Containers; Vacuum locks provided with coatings on the walls thereof; Selection of materials for the coatings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

422,728. Cathode-ray tubes. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JESTY, L. C., c/o General Electric Co., Wembley, Middlesex. Nov. 6, 1933, No. 30800. [Class 39 (i)] Cathode - ray tubes for television &c. have a layer 9 of metal such as magnesium evaporated from a metal body 8 on to the envelope 10 near the fluorescent screen 4 to form a conducting coating connected to an electrode and to act as a getter, a shielding disc preventing deposition of the metal on the screen 4. The body 8 and disc 1 are moved within the envelope, after the evaporation process, out of the path of the cathode rays. The disc 1 is carried by an arm 2, connected by a spring 5 to the anode 3, and is held central by a filament 6 joined to a member 7 carried by an electrode. After the magnesium has been evaporated by eddy current heating, current is passed through the filament 6 to fuse it, and the arm 2 springs to the left and connects the metal layer 9 to the anode 3.
GB3080033A 1934-03-24 1933-11-06 Improvements in or relating to electric discharge devices Expired GB422728A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB931534A GB435566A (en) 1934-03-24 1934-03-24 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB422728A true GB422728A (en) 1935-01-17

Family

ID=9869604

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3080033A Expired GB422728A (en) 1934-03-24 1933-11-06 Improvements in or relating to electric discharge devices
GB931534A Expired GB435566A (en) 1934-03-24 1934-03-24 Improvements in or relating to cathode ray tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB931534A Expired GB435566A (en) 1934-03-24 1934-03-24 Improvements in or relating to cathode ray tubes

Country Status (1)

Country Link
GB (2) GB422728A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE894139C (en) * 1941-06-15 1953-10-22 Telefunken Gmbh High-voltage discharge tubes with a vacuum vessel made of glass or ceramic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE894139C (en) * 1941-06-15 1953-10-22 Telefunken Gmbh High-voltage discharge tubes with a vacuum vessel made of glass or ceramic

Also Published As

Publication number Publication date
GB435566A (en) 1935-09-24

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