well ankit
1. An external electrode fluorescent lamp, comprising: a ferroelectric glass tube filled with discharge gas; and a ferroelectric film on an internal surface of the ferroelectric glass tube.
2. The external electrode fluorescent lamp according to claim 1, wherein the ferroelectric glass tube has a dielectric constant of about 10˜20.
3. The external electrode fluorescent lamp according to claim 1, further comprising: external electrodes on an external surface of the ferroelectric glass tube and respectively positioned at ends of the ferroelectric glass tube.
4. The external electrode fluorescent lamp according to claim 1, wherein the ferroelectric glass tube includes at least one of Li2O, Na2O, K2O and BaO.
5. The external electrode fluorescent lamp according to claim 1, wherein the ferroelectric film has a dielectric constant of about 4˜20.
6. The external electrode fluorescent lamp according to claim 5, wherein the ferroelectric film includes at least one of Barium Titanate (BaTi3), Lithium Niobate (LiNbO3), Gadolinium Molybdate (Gd2(MoO4)3), Antimony Sulphoiodide (SbSI), Sodium Nitrite (NaNO2), Potassium Dihydrogen Phosphate (KH2PO4), Triglycine Sulfate ((NH2CH2COOH)3H2SO4) and Rochelle salt (NaKC4H4O6.4H2O).
7. The external electrode fluorescent lamp according to claim 1, wherein the discharge gas is argon (Ar).
8. The external electrode fluorescent lamp according to claim 1, wherein pressure of the discharge gas is about 5˜45 torr.
9. The external electrode fluorescent lamp according to claim 1, further comprising: metal tubes on the external surface of the ferroelectric glass tube at ends of the ferroelectric glass tube.
10. The external electrode fluorescent lamp according to claim 9, wherein the metal tubes are made of phosphor bronze.
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Answered by
jaivir
, an ibibo Master,
at
7:32 AM on June 02, 2008