EP 0348979 A2 19900103 - Fluorescent lamp apparatus.
Title (en)
Fluorescent lamp apparatus.
Title (de)
Leuchtstofflampe.
Title (fr)
Lampe fluorescente.
Publication
Application
Priority
JP 16077488 A 19880630
Abstract (en)
A fluorescent lamp apparatus is disclosed which (15) includes a fluorescent lamp including a discharge tube (16) having a discharge space (17) filled with a gas conducive to light emission and electrodes (20) sealed one at each end of the tube and having a phosphor layer (21) coated on an inner surface (18) of the tube (16) and a high-frequency lighting circuit (30) for supplying a high-frequency electric power with a potential gradient set at over 5 V/cm, in which a light-transmitting electric insulation layer (22) is provided between the phosphor layer (21) and the inner surface (18) of the tube (16). The fluorescent lamp apparatus is of such a type that mercury ions within the discharge space (17) are prevented by the insulating layer from intruding in the wall of the tube (16).
IPC 1-7
IPC 8 full level
H01J 61/35 (2006.01); H01J 61/72 (2006.01); H01J 65/00 (2006.01)
CPC (source: EP KR)
H01J 61/35 (2013.01 - EP KR)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0348979 A2 19900103; EP 0348979 A3 19901128; JP H0212751 A 19900117; KR 900000964 A 19900131; KR 910010106 B1 19911216
DOCDB simple family (application)
EP 89111876 A 19890629; JP 16077488 A 19880630; KR 890008213 A 19890614