GB453927A - Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like - Google Patents

Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like

Info

Publication number
GB453927A
GB453927A GB35708/34A GB3570834A GB453927A GB 453927 A GB453927 A GB 453927A GB 35708/34 A GB35708/34 A GB 35708/34A GB 3570834 A GB3570834 A GB 3570834A GB 453927 A GB453927 A GB 453927A
Authority
GB
United Kingdom
Prior art keywords
sulphide
zinc
cathode ray
ray tubes
screens
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
GB35708/34A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Priority to GB35708/34A priority Critical patent/GB453927A/en
Publication of GB453927A publication Critical patent/GB453927A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/0805—Chalcogenides
    • C09K11/0811—Chalcogenides with zinc or cadmium
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

453,927. Fluorescent screens. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 12, 1934, No. 35708. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 13, 1935]: [Class 98 (i)] Fluorescent material for screens for cathode ray tubes and similar purposes comprises zinc sulphide, zinc cadmium sulphide, zinc manganese sulphide, or zinc cadmium manganese sulphide simultaneously activated by two or more different metals. The metals may be so chosen as to produce a white emission, for example, if the combined sulphides are activated with copper, which gives an emission maximum in the orange, and silver which gives one in the green, an approximation to white light is produced.
GB35708/34A 1934-12-12 1934-12-12 Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like Expired GB453927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB35708/34A GB453927A (en) 1934-12-12 1934-12-12 Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35708/34A GB453927A (en) 1934-12-12 1934-12-12 Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like

Publications (1)

Publication Number Publication Date
GB453927A true GB453927A (en) 1935-06-13

Family

ID=10380692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35708/34A Expired GB453927A (en) 1934-12-12 1934-12-12 Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like

Country Status (1)

Country Link
GB (1) GB453927A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747208C (en) * 1939-02-08 1944-09-15 Telefunken Gmbh Process for increasing the brightness of silver-activated luminophores
DE747911C (en) * 1937-11-16 1944-10-20 Production of luminescent tungstates, molybdates and chromates
US2423830A (en) * 1943-03-25 1947-07-15 Gen Electric Cathode-ray screen having contrasting colors and unlike rates of decay of luminescence
US2470451A (en) * 1945-10-17 1949-05-17 Rca Corp Phosphors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747911C (en) * 1937-11-16 1944-10-20 Production of luminescent tungstates, molybdates and chromates
DE747208C (en) * 1939-02-08 1944-09-15 Telefunken Gmbh Process for increasing the brightness of silver-activated luminophores
US2423830A (en) * 1943-03-25 1947-07-15 Gen Electric Cathode-ray screen having contrasting colors and unlike rates of decay of luminescence
US2470451A (en) * 1945-10-17 1949-05-17 Rca Corp Phosphors

Similar Documents

Publication Publication Date Title
GB453927A (en) Improvements in or relating to materials for use in fluorescent screens for cathode ray tubes and the like
US2219929A (en) Luminescent screen
GB446833A (en) Improvements in and relating to electric discharge lamps
GB429912A (en) Improvements in or relating to fluorescent screens
GB389599A (en) Improvements in portable photoelectric photometers
GB413544A (en) Improvements in or relating to thermionic valve circuit arrangements
GB457951A (en) Improvements in or relating to method of marking devices comprising luminescent screens
DE360275C (en) Process for the production of smokeless and metal-free luminous kits
GB437323A (en) Improvements in electric discharge devices comprising luminescent materials
GB406957A (en) Fluorescent material
GB407540A (en) Improvements in or relating to luminescent screens and methods of producing luminophores for use therein
GB348439A (en) Improvements in or relating to glow discharge lamps
GB438910A (en) Improvements in electric discharge lamps
GB514458A (en) Improvements in or relating to luminescent materials
GB525608A (en) Improvements in or relating to electric discharge tubes for the photo-electric transformation of light
GB427842A (en) Improvements relating to gas discharge lamps for television and the like
GB612270A (en) Improvements in fluorescent materials and in screens comprised thereof
CA342756A (en) Electron emitting cathode
GB475397A (en) Improvements in or relating to radio and like transmitters
GB410114A (en) Improvements in or relating to fluorescent screens
GB424763A (en) Improvements in or relating to television apparatus
CA340586A (en) Weatherproof luminous substance
GB498740A (en) Improvements in combinations of electric discharge devices with materials excited to luminescence by the discharge through them
GB344738A (en)
GB515154A (en) Improvements in electric discharge lamps