GB479733A - Improvements in or relating to the manufacture of activated electrodes for photo-electric cells or secondary electron multipliers - Google Patents

Improvements in or relating to the manufacture of activated electrodes for photo-electric cells or secondary electron multipliers

Info

Publication number
GB479733A
GB479733A GB17368/37A GB1736837A GB479733A GB 479733 A GB479733 A GB 479733A GB 17368/37 A GB17368/37 A GB 17368/37A GB 1736837 A GB1736837 A GB 1736837A GB 479733 A GB479733 A GB 479733A
Authority
GB
United Kingdom
Prior art keywords
photo
manufacture
electric cells
relating
electron multipliers
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
GB17368/37A
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Publication of GB479733A publication Critical patent/GB479733A/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

Abstract

479,733. Electrode materials. ZEISS IKON AKT.-GES. June 22, 1937, No. 17368. Convention date, July 4, 1936. Drawings to Specification. [Class 39 (i)] In the manufacture of activated electrodes of photo-electric cells or electron multipliers, an alkali metal is vaporized on to the oxidized surface of a layer of metal of greater conductivity than itself, and is then coated with a thin layer of a metal of lower conductivity than itself, such as bismuth, antimony, or lead. The base layer may be silver or copper, to the oxidized surface of which caesium is applied.
GB17368/37A 1936-07-04 1937-06-22 Improvements in or relating to the manufacture of activated electrodes for photo-electric cells or secondary electron multipliers Expired GB479733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE479733X 1936-07-04

Publications (1)

Publication Number Publication Date
GB479733A true GB479733A (en) 1938-02-10

Family

ID=6542452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17368/37A Expired GB479733A (en) 1936-07-04 1937-06-22 Improvements in or relating to the manufacture of activated electrodes for photo-electric cells or secondary electron multipliers

Country Status (1)

Country Link
GB (1) GB479733A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750598C (en) * 1938-03-07 1945-01-23 Emi Ltd Light-sensitive layer for photocells, image transmission tubes, image converters, etc. like
DE742593C (en) * 1939-02-21 1954-03-22 Telefunken Gmbh Process for the production of a cathode showing the external photo effect or the secondary emission effect
DE967684C (en) * 1938-12-15 1957-12-05 Cinema Television Ltd Process for the production of a photosensitive layer from an alkali metal and a metal forming an alloy therewith
DE974826C (en) * 1939-05-31 1961-05-10 Fernseh Gmbh Process for the production of secondary emitting layers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750598C (en) * 1938-03-07 1945-01-23 Emi Ltd Light-sensitive layer for photocells, image transmission tubes, image converters, etc. like
DE967684C (en) * 1938-12-15 1957-12-05 Cinema Television Ltd Process for the production of a photosensitive layer from an alkali metal and a metal forming an alloy therewith
DE742593C (en) * 1939-02-21 1954-03-22 Telefunken Gmbh Process for the production of a cathode showing the external photo effect or the secondary emission effect
DE974826C (en) * 1939-05-31 1961-05-10 Fernseh Gmbh Process for the production of secondary emitting layers

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