GB827058A - Improvements in or relating to photo-sensitive devices employing photo-conductive coatings - Google Patents

Improvements in or relating to photo-sensitive devices employing photo-conductive coatings

Info

Publication number
GB827058A
GB827058A GB440655A GB440655A GB827058A GB 827058 A GB827058 A GB 827058A GB 440655 A GB440655 A GB 440655A GB 440655 A GB440655 A GB 440655A GB 827058 A GB827058 A GB 827058A
Authority
GB
United Kingdom
Prior art keywords
photo
anode
layer
mesh
porous
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
GB440655A
Inventor
Hans Gerhard Lubszynski
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.)
Electrical and Musical Industries Ltd
Original Assignee
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
Priority to NL204438D priority Critical patent/NL204438A/xx
Priority to NL101230D priority patent/NL101230C/xx
Application filed by Electrical and Musical Industries Ltd filed Critical Electrical and Musical Industries Ltd
Priority to GB440655A priority patent/GB827058A/en
Priority to US56380056 priority patent/US3015746A/en
Priority to DEE11913A priority patent/DE1220885B/en
Priority to FR1141315D priority patent/FR1141315A/en
Publication of GB827058A publication Critical patent/GB827058A/en
Priority to US1551260 priority patent/US3106488A/en
Priority to GB2250063A priority patent/GB1090073A/en
Priority to US37197164 priority patent/US3383244A/en
Priority to DEE27146A priority patent/DE1277306B/en
Priority to NL6406352A priority patent/NL6406352A/xx
Priority to FR977221A priority patent/FR86084E/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens
    • H01J29/45—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen
    • 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
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • 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
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

827,058. Photo-electric devices. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 27, 1956 [Feb. 15, 1955], No. 4406/55. Class 37. A photo-sensitive device comprises a layer of solid photoconductive material on a layer of porous photoconductive material. Fig. 1 shows a television pickup tube comprising a transparent electrode 14 on a glass base 3 with a first porous or spongy layer 21 of photoconductive material and a second solid layer 22. The electron gun assembly includes a tubular anode 16 which is provided with a metal mesh 15. In construction a tantalum boat 19 containing photoconductive material 20 is heated in an atmosphere of Xenon to evaporate the material through mesh 15 to form porous layer 21; the material is also deposited on mesh 15 and the inner surface of anode 16. The boat is then removed, the tube evacuated and mesh 15 and anode 16 inductively heated to re-evaporate the material to form solid layer 22, the glass base 3 being water cooled during this operation. To reduce the amount of material deposited, anode 16 may be provided with apertures, which may be covered by meshes or by spring urged flaps which can be placed in position by tapping the tube after completion of the evaporating processes. The semi-conductor material may consist of antimony trisulphide, zinc selenide, cadmium sulphide, cadmium selenide or germanium sulphide. To prevent reaction between the photo-conductive material and the anode 16, this may be coated with rhodium, platinum, palladium or iridium as described in Specification 827,059 is referred to. Reference has been directed by the Comptroller to Specification 705,533.
GB440655A 1955-02-15 1955-02-15 Improvements in or relating to photo-sensitive devices employing photo-conductive coatings Expired GB827058A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
NL204438D NL204438A (en) 1955-02-15
NL101230D NL101230C (en) 1955-02-15
GB440655A GB827058A (en) 1955-02-15 1955-02-15 Improvements in or relating to photo-sensitive devices employing photo-conductive coatings
US56380056 US3015746A (en) 1955-02-15 1956-02-06 Electron discharge devices employing photo-conductive target electrodes
DEE11913A DE1220885B (en) 1955-02-15 1956-02-06 Storage electrode for image pick-up tubes and method for their manufacture
FR1141315D FR1141315A (en) 1955-02-15 1956-02-15 Improvements to electron tubes using photoconductive targets
US1551260 US3106488A (en) 1955-02-15 1960-02-19 Improved method of forming a photoconductive layer on a translucent surface
GB2250063A GB1090073A (en) 1955-02-15 1963-06-06 Improvements in or relating to photosensitive devices
US37197164 US3383244A (en) 1955-02-15 1964-06-02 Photo-sensitive devices employing photo-conductive coatings
DEE27146A DE1277306B (en) 1955-02-15 1964-06-02 Storage electrode for image pick-up tubes and method for their manufacture
NL6406352A NL6406352A (en) 1955-02-15 1964-06-04
FR977221A FR86084E (en) 1955-02-15 1964-06-05 Improvements to electron tubes using photoconductive targets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB440655A GB827058A (en) 1955-02-15 1955-02-15 Improvements in or relating to photo-sensitive devices employing photo-conductive coatings

Publications (1)

Publication Number Publication Date
GB827058A true GB827058A (en) 1960-02-03

Family

ID=9776597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB440655A Expired GB827058A (en) 1955-02-15 1955-02-15 Improvements in or relating to photo-sensitive devices employing photo-conductive coatings

Country Status (1)

Country Link
GB (1) GB827058A (en)

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