EP 1734562 A2 20061220 - Luminous thin film having ultraviolet filtering and explosion-proofing for fluorescent lamps
Title (en)
Luminous thin film having ultraviolet filtering and explosion-proofing for fluorescent lamps
Title (de)
Dünne Leuchtfolie mit Ultraviolettfilter und Explosionsschutz für Leuchtstofflampen
Title (fr)
Feuille luminescente avec filtration ultraviolet et protection contre l'explosion pour lampes fluorescentes
Publication
Application
Priority
CN 200510075337 A 20050616
Abstract (en)
A luminous lamp thin film having ultraviolet filtering and explosion-proof is disclosed. An outside of a lamp (10) is coated by a transparent layer (20) which comprises phosphor powder (30). Energy generated by the lamp (10) is absorbed by the phosphor powder (30) while the lamp is shining. The phosphor powder releases energy, so as to provide auxiliary lighting after turning off the lamp. In addition, the phosphor powder can absorb harmful ultraviolet and other harmful radiations with shorter wavelengths to be one part of the thin film for filtering harmful radiations. The harmful ultraviolet can be transformed by the phosphor powder into visible light to red shift radiations with short wavelengths; hence the harmful radiations with shorter wavelengths can be eliminated. The illumination of visible light can be further increased. The transparent layer can catch broken fragments of the outside of the lamp to decrease accidents when the lamp is broken.
IPC 8 full level
H01J 61/35 (2006.01)
CPC (source: EP)
H01J 61/35 (2013.01); H01J 61/40 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1734562 A2 20061220; EP 1734562 A3 20070919; CN 1881513 A 20061220
DOCDB simple family (application)
EP 05028436 A 20051223; CN 200510075337 A 20050616