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GB673224A - Improvements in or relating to photosensitive cathode films - Google Patents

Improvements in or relating to photosensitive cathode films

Info

Publication number
GB673224A
GB673224A GB4688/50A GB468850A GB673224A GB 673224 A GB673224 A GB 673224A GB 4688/50 A GB4688/50 A GB 4688/50A GB 468850 A GB468850 A GB 468850A GB 673224 A GB673224 A GB 673224A
Authority
GB
United Kingdom
Prior art keywords
relating
cathode films
photosensitive cathode
silver
photosensitive
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
GB4688/50A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB673224A publication Critical patent/GB673224A/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
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/922—Static electricity metal bleed-off metallic stock
    • Y10S428/9335—Product by special process
    • Y10S428/938—Vapor deposition or gas diffusion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12597—Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.]

Landscapes

  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Electroplating And Plating Baths Therefor (AREA)

Abstract

A photo-electric cathode comprises alkali metal on a layer of silver bismuth alloy. The ratio of silver to bismuth may be between 80 to 20 and 98 to 2 and is preferably 90 to 10, 92.5 to 7.5, 93.5 to 6.5 or 95 to 5. Alloys of 50 to 50 and 97.5 to 2.5 are stated to give a cathode which is less sensitive.
GB4688/50A 1949-03-03 1950-02-23 Improvements in or relating to photosensitive cathode films Expired GB673224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79328A US2682479A (en) 1949-03-03 1949-03-03 Photosurface of a panchromatic type and method of preparing same

Publications (1)

Publication Number Publication Date
GB673224A true GB673224A (en) 1952-06-04

Family

ID=22149840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4688/50A Expired GB673224A (en) 1949-03-03 1950-02-23 Improvements in or relating to photosensitive cathode films

Country Status (2)

Country Link
US (1) US2682479A (en)
GB (1) GB673224A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818831A (en) * 1955-02-18 1958-01-07 Rca Corp Means for obtaining a uniform evaporated deposit
US4184098A (en) * 1976-04-22 1980-01-15 S.R.C. Laboratories, Inc. Cone type dynode for photomultiplier tube

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1738957A (en) * 1923-04-16 1929-12-10 Magnavox Co Photo-electric tube
US1894946A (en) * 1929-08-19 1933-01-24 Siemens Ag Method for activating glowing cathodes or the like
US2123024A (en) * 1936-05-29 1938-07-05 Rca Corp Electrode for electric discharge devices
NL60866C (en) * 1938-03-07
US2297467A (en) * 1939-04-26 1942-09-29 Gorlich Paul Photoelectric cathode
US2285062A (en) * 1939-07-20 1942-06-02 Cinema Television Ltd Photoelectrically sensitive electrode
GB532525A (en) * 1939-07-24 1941-01-27 Baird Television Ltd Improvements in or relating to methods of manufacturing mosaic electrodes
US2244720A (en) * 1940-03-28 1941-06-10 Rca Corp Photocathode
US2404803A (en) * 1941-01-25 1946-07-30 Western Electric Co Space discharge device
US2404737A (en) * 1943-07-05 1946-07-23 Sharp & Dohme Inc Sulphanilylsulphanilamide derivatives
US2413442A (en) * 1944-01-28 1946-12-31 Gen Electric Electrode activation

Also Published As

Publication number Publication date
US2682479A (en) 1954-06-29

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