FR1144977A - élément électroluminescent - Google Patents

élément électroluminescent

Info

Publication number: FR1144977A
Authority: FR; France
Prior art keywords: electroluminescent element; electroluminescent
Prior art date: 1955-04-01
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

Other languages

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.)

Koninklijke Philips NV

Original Assignee

Philips Gloeilampenfabrieken NV

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.)

1955-04-01

Filing date

1956-03-30

Publication date

1957-10-21

1956-03-30 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1957-10-21 Application granted granted Critical

1957-10-21 Publication of FR1144977A publication Critical patent/FR1144977A/fr

Status Expired legal-status Critical Current

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 [2D] radiating surfaces
- H05B33/22—Light sources with substantially two-dimensional [2D] radiating surfaces characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers

FR1144977D 1955-04-01 1956-03-30 élément électroluminescent Expired FR1144977A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL1144977X		1955-04-01

Publications (1)

Publication Number	Publication Date
FR1144977A true FR1144977A (fr)	1957-10-21

Family

ID=19870250

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1144977D Expired FR1144977A (fr)	1955-04-01	1956-03-30	élément électroluminescent

Country Status (1)

Country	Link
FR (1)	FR1144977A (fr)

1956
- 1956-03-30 FR FR1144977D patent/FR1144977A/fr not_active Expired

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