GB1022569A - Improvements in and relating to electroluminescent devices - Google Patents

Improvements in and relating to electroluminescent devices

Info

Publication number
GB1022569A
GB1022569A GB45505/63A GB4550563A GB1022569A GB 1022569 A GB1022569 A GB 1022569A GB 45505/63 A GB45505/63 A GB 45505/63A GB 4550563 A GB4550563 A GB 4550563A GB 1022569 A GB1022569 A GB 1022569A
Authority
GB
United Kingdom
Prior art keywords
excitation
varied
parent specification
rays
relating
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
GB45505/63A
Inventor
Peter Whitten Ranby
Malcolm Owen Norris
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 GB45505/63A priority Critical patent/GB1022569A/en
Priority to NL646411593A priority patent/NL149672B/en
Priority to JP39060482A priority patent/JPS5144397B1/ja
Priority to US408253A priority patent/US3454830A/en
Priority to SE13844/64A priority patent/SE323753B/xx
Priority to DE1439743A priority patent/DE1439743C3/en
Publication of GB1022569A publication Critical patent/GB1022569A/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
    • 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
    • H05B44/00—Circuit arrangements for operating electroluminescent light sources
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Electroluminescent Light Sources (AREA)
  • Luminescent Compositions (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

An electroluminescent device of the type described in the parent Specification, or in Specifications 1,003,706 and 1,004,593, in which an image produced by excitation with cathode rays, high-energy nuclear particles, X-rays or laser beams is retained for a considerable period after the excitation has ceased has an arrangement whereby the unidirectional potential difference applied to the device is varied as a function of the reciprocal of the current flowing through the device. A series connected resistance which is varied in magnitude either manually or automatically is preferably used, e.g. a filament lamp or an electron discharge tube. The electroluminescent phosphor is as described in the parent Specification, i.e. ZnS, with or without CdS, MnS and MgCl2.6H2O, NaCl or BaCl2, with a slight addition of gold.
GB45505/63A 1963-11-18 1963-11-18 Improvements in and relating to electroluminescent devices Expired GB1022569A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB45505/63A GB1022569A (en) 1963-11-18 1963-11-18 Improvements in and relating to electroluminescent devices
NL646411593A NL149672B (en) 1963-11-18 1964-10-06 DEVICE FOR OPERATION OF AN ELECTROLUMINESCENT CELL.
JP39060482A JPS5144397B1 (en) 1963-11-18 1964-10-26
US408253A US3454830A (en) 1963-11-18 1964-11-02 Control system for electroluminescent image-retaining panel
SE13844/64A SE323753B (en) 1963-11-18 1964-11-17
DE1439743A DE1439743C3 (en) 1963-11-18 1964-11-18 Image storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45505/63A GB1022569A (en) 1963-11-18 1963-11-18 Improvements in and relating to electroluminescent devices

Publications (1)

Publication Number Publication Date
GB1022569A true GB1022569A (en) 1966-03-16

Family

ID=10437474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45505/63A Expired GB1022569A (en) 1963-11-18 1963-11-18 Improvements in and relating to electroluminescent devices

Country Status (6)

Country Link
US (1) US3454830A (en)
JP (1) JPS5144397B1 (en)
DE (1) DE1439743C3 (en)
GB (1) GB1022569A (en)
NL (1) NL149672B (en)
SE (1) SE323753B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2294793A1 (en) * 1974-12-20 1976-07-16 Inst Kerntechnik Energiewand BEAM CURRENT CONTROL IN AN ELECTRONIC HARNESS WELDING MACHINE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149080A (en) * 1936-11-28 1939-02-28 Rca Corp Current or voltage regulator
US2985795A (en) * 1957-10-15 1961-05-23 Engelhard Hanovia Inc Starting and operating circuit for high pressure arc lamps
GB966730A (en) * 1959-08-06 1964-08-12 Thorn Electrical Ind Ltd Improvements in and relating to electro-luminescent devices

Also Published As

Publication number Publication date
NL149672B (en) 1976-05-17
DE1439743A1 (en) 1968-11-21
SE323753B (en) 1970-05-11
JPS5144397B1 (en) 1976-11-27
US3454830A (en) 1969-07-08
NL6411593A (en) 1965-05-19
DE1439743B2 (en) 1973-10-11
DE1439743C3 (en) 1974-05-09

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