GB798503A - Improvements in and relating to electroluminescent lamps - Google Patents

Improvements in and relating to electroluminescent lamps

Info

Publication number
GB798503A
GB798503A GB34324/53A GB3432453A GB798503A GB 798503 A GB798503 A GB 798503A GB 34324/53 A GB34324/53 A GB 34324/53A GB 3432453 A GB3432453 A GB 3432453A GB 798503 A GB798503 A GB 798503A
Authority
GB
United Kingdom
Prior art keywords
light
producing layer
electrodes
layer
strontium titanate
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
GB34324/53A
Inventor
Derek Hubert Mash
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.)
Thorn Electrical Industries Ltd
Original Assignee
Thorn Electrical Industries Ltd
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 Thorn Electrical Industries Ltd filed Critical Thorn Electrical Industries Ltd
Priority to GB34324/53A priority Critical patent/GB798503A/en
Priority to US472193A priority patent/US3205393A/en
Publication of GB798503A publication Critical patent/GB798503A/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
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers
    • H05B33/24—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers of metallic reflective layers
    • 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
    • H05B33/20—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
    • 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
    • H05B33/22—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers

Landscapes

  • Electroluminescent Light Sources (AREA)

Abstract

798,503. Electroluminescence. THORN ELECTRICAL INDUSTRIES, Ltd. Nov. 15, 1954 [Dec. 9, 1953], No. 34324/53. Drawing to Specification. Class 39(1). An electroluminescent lamp comprises two electrodes (one transparent) enclosing a light producing layer which consists of phosphor and dielectric materials, and a material of higher dielectric constant than that of the light-producing layer is provided between the latter and one of the electrodes. The higher dielectric material may be one or more of magnesium oxide, the rutile and anatase forms of titanium dioxide, calcium, barium or strontium titanate, and mixed titanates, e.g., barium strontium titanate all being white solids which are efficient reflectors of light. The conducting electrode alongside the high dielectric layer may be graphite. The light producing layer is made as thin as possible, preferably with the ratio of electroluminescent material to dielectric material between 1:1 and 10 : 1. They may be applied as an intimate mixture or in powder and liquid forms respectively.
GB34324/53A 1953-12-09 1953-12-09 Improvements in and relating to electroluminescent lamps Expired GB798503A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB34324/53A GB798503A (en) 1953-12-09 1953-12-09 Improvements in and relating to electroluminescent lamps
US472193A US3205393A (en) 1953-12-09 1954-11-30 Electroluminescent lamp with a dielectric reflective material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB34324/53A GB798503A (en) 1953-12-09 1953-12-09 Improvements in and relating to electroluminescent lamps

Publications (1)

Publication Number Publication Date
GB798503A true GB798503A (en) 1958-07-23

Family

ID=10364228

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34324/53A Expired GB798503A (en) 1953-12-09 1953-12-09 Improvements in and relating to electroluminescent lamps

Country Status (2)

Country Link
US (1) US3205393A (en)
GB (1) GB798503A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983004339A1 (en) * 1982-05-28 1983-12-08 Matsushita Electric Industrial Co., Ltd. Thin film electric field light-emitting device
US4859904A (en) * 1985-06-04 1989-08-22 Phosphor Products Company Limited High contrast electroluminescent displays

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3267318A (en) * 1963-04-03 1966-08-16 Sylvania Electric Prod Electroluminescent device
US3378715A (en) * 1966-02-16 1968-04-16 Westinghouse Electric Corp Electroluminescent device which incorporates barium oxide films as breakdown protection
US3497750A (en) * 1966-12-02 1970-02-24 Westinghouse Electric Corp Flexible electroluminescent lamp with dual-purpose metallized plastic film component
DE3113217A1 (en) * 1981-04-02 1982-10-21 Standard Elektrik Lorenz Ag, 7000 Stuttgart Electroluminescent display and method for its manufacture
JPS60124396A (en) * 1983-12-09 1985-07-03 松下電器産業株式会社 Thin film light emitting element
US4626742A (en) * 1984-03-26 1986-12-02 Microlite, Inc. Plug-compatible electroluminescent lamp
US4617195A (en) * 1984-03-26 1986-10-14 Microlite, Inc. Shielded electroluminescent lamp
US4593228A (en) * 1984-05-15 1986-06-03 Albrechtson Loren R Laminated electroluminescent lamp structure and method of manufacturing
US4752717A (en) * 1984-08-27 1988-06-21 Edwards Industries, Inc. Shielded electroluminescent lamp
EP0172985B1 (en) * 1984-08-27 1989-12-27 Ball Engineering Corporation Electroluminescent lamp
US4767966A (en) * 1984-12-03 1988-08-30 Luminescent Electronics, Inc. Electroluminescent panels
US4853079A (en) * 1984-12-03 1989-08-01 Lumel, Inc. Method for making electroluminescent panels
US4730146A (en) * 1986-10-21 1988-03-08 W. H. Brady Co. Folded electroluminescent lamp assembly
US6825054B2 (en) 2001-11-21 2004-11-30 Paul Valentine Light emitting ceramic device and method for fabricating the same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2519722A (en) * 1946-09-20 1950-08-22 Bausch & Lomb Metallic mirror and method of making same
US2504498A (en) * 1947-05-14 1950-04-18 Gen Electric Starting and operating circuit for electric discharge devices
US2624857A (en) * 1949-10-08 1953-01-06 Sylvania Electric Prod Electroluminescent lamp
US2566349A (en) * 1950-01-28 1951-09-04 Sylvania Electric Prod Electroluminescent lamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983004339A1 (en) * 1982-05-28 1983-12-08 Matsushita Electric Industrial Co., Ltd. Thin film electric field light-emitting device
US4547703A (en) * 1982-05-28 1985-10-15 Matsushita Electric Industrial Co., Ltd. Thin film electroluminescent element
US4859904A (en) * 1985-06-04 1989-08-22 Phosphor Products Company Limited High contrast electroluminescent displays

Also Published As

Publication number Publication date
US3205393A (en) 1965-09-07

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