GB778906A - Improvements in electroluminescent lamps - Google Patents

Improvements in electroluminescent lamps

Info

Publication number
GB778906A
GB778906A GB24077/53A GB2407753A GB778906A GB 778906 A GB778906 A GB 778906A GB 24077/53 A GB24077/53 A GB 24077/53A GB 2407753 A GB2407753 A GB 2407753A GB 778906 A GB778906 A GB 778906A
Authority
GB
United Kingdom
Prior art keywords
aug
materials
electroluminescent lamps
electroluminescence
valence
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
GB24077/53A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB778906A publication Critical patent/GB778906A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • H05B33/145—Arrangements of the electroluminescent material

Landscapes

  • Luminescent Compositions (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

778,906. Electroluminescence. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 31, 1953 [Aug. 30, 1952], No. 24077/53. Drawings to Specification. Class 39(1). Materials having an energy gap between their valence and conduction bands of more than 3À5 electron volts comprise zinc sulphide and zinc silicate each activated by manganese (3-40 per cent). The materials are embedded in dielectric or used directly as a compressed layer in electroluminescent lamp constructions. Specifications 731,365, 737,596 and 778,905 are referred to.
GB24077/53A 1952-08-30 1953-08-31 Improvements in electroluminescent lamps Expired GB778906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US778906XA 1952-08-30 1952-08-30

Publications (1)

Publication Number Publication Date
GB778906A true GB778906A (en) 1957-07-17

Family

ID=22140635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24077/53A Expired GB778906A (en) 1952-08-30 1953-08-31 Improvements in electroluminescent lamps

Country Status (1)

Country Link
GB (1) GB778906A (en)

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