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.)
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.)
CEDEL
Original Assignee
CEDEL
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 CEDELfiledCriticalCEDEL
Application grantedgrantedCritical
Publication of FR1141523ApublicationCriticalpatent/FR1141523A/fr
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
FR1141523D1955-12-301955-12-30Procédés et moyens pour la préparation des matériaux électroluminescents
ExpiredFR1141523A
(fr)