GB1080464A - Electroluminescent panel-image conversion using electroluminescent and phosphorescent materials - Google Patents

Electroluminescent panel-image conversion using electroluminescent and phosphorescent materials

Info

Publication number
GB1080464A
GB1080464A GB2777164A GB2777164A GB1080464A GB 1080464 A GB1080464 A GB 1080464A GB 2777164 A GB2777164 A GB 2777164A GB 2777164 A GB2777164 A GB 2777164A GB 1080464 A GB1080464 A GB 1080464A
Authority
GB
United Kingdom
Prior art keywords
photo
electroluminescent
image
layer
conductive
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
GB2777164A
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.)
General Precision Inc
Original Assignee
General Precision 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 General Precision Inc filed Critical General Precision Inc
Publication of GB1080464A publication Critical patent/GB1080464A/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
    • 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

Abstract

<PICT:1080464/C4-C5/1> A light transducer operating on A.C. comprising layers 16 of photo-conductive and 14 of electro-luminescent material uses as the photo-conductive material a phosphorescent material with an electrical persistence relatively far longer than its optical persistence. The photo-conductive material may be activated by infra-red radiation or activated by ultra-violet and quenched by infra-red radiation to give a negative image. A barium titanate layer 30 may be included between the layers, to shield the layer 14 from the incident radiation, and also to enable a further image to be projected on to, and observed on, this white layer, through the transparent layer 14 and transparent substrate 10, this projected image thus appearing superimposed on the transduced image. The electro-luminescent material may be ZnO + ZnS[Cu] and the photo-conductive materials may be those disclosed in U.S.A. Specification 2,990,473, i.e. zinc or cadmium chalcogenides.
GB2777164A 1963-12-12 1964-07-06 Electroluminescent panel-image conversion using electroluminescent and phosphorescent materials Expired GB1080464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33016463A 1963-12-12 1963-12-12

Publications (1)

Publication Number Publication Date
GB1080464A true GB1080464A (en) 1967-08-23

Family

ID=23288573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2777164A Expired GB1080464A (en) 1963-12-12 1964-07-06 Electroluminescent panel-image conversion using electroluminescent and phosphorescent materials

Country Status (2)

Country Link
DE (1) DE1489322C3 (en)
GB (1) GB1080464A (en)

Also Published As

Publication number Publication date
DE1489322B2 (en) 1973-10-25
DE1489322C3 (en) 1974-05-22
DE1489322A1 (en) 1969-03-13

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